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rweyq - Daikin AC

Contents

1.
2. Normal Control SiUS30 604 5 1 2 Compressor Operation Frequency Steps 1 One outside 2 Two outside units connection installation unit installation Step m A 1 Compressor operation 1 52 2 Start up Se Master 2 57Hz 1 52Hz 3 62Hz 2 57Hz 4 68Hz 3 62Hz 5 74Hz 4 68Hz 6 81Hz 5 74Hz E eee B 2 Compressor operation 8 96Hz 7 88Hz Step 9 104Hz 8 96Hz No Master Slave 1 10 110Hz 9 104Hz 4 9 52Hz 52Hz Start up 11 112Hz 10 110Hz 10 57Hz 57Hz 12 120Hz 11 112Hz 11 62Hz 62Hz 13 130Hz 12 120Hz 12 68Hz 68Hz 14 141Hz 13 130Hz 13 71Hz 71Hz 15 156Hz 14 141Hz 14 74Hz 74Hz 16 168Hz 15 81Hz 81Hz 17 177Hz 16 88Hz 88Hz 18 189Hz 17 92Hz 92Hz 19 202Hz 18 96Hz 96Hz 20 210Hz 19 104Hz 104Hz 21 216Hz 20 110Hz 110Hz 22 230Hz 21 112Hz 112Hz 22 120Hz 120Hz 23 130Hz 130Hz 24 141Hz 141Hz 3 Three outside units connection installation 25 156Hz 156Hz A 1 Compressor operation 26 1682 68 27 177Hz 177Hz Mas
3. INDOOR UNIT A2P PIPRINTED CIRCUIT BOARD AP wb lacus UIFUSECT 31548 280 cmn ORN RIT RIT RIT SD Bi HAPILIGHT EMITTING DIODE 9e SERVICE M Al ep F MOTOR INDO RED 225 S MOTOR SW ER D T THERMI STOR WHT EM TITHERMISTOR COIL LIQ X THHERMISTOR COIL ERMINAL BLO OR i TERMINAL B EE Sipe EJELECTRONIC EXPANSION VALVE Alp E iP WIRED REMOTE POWER CIRCUIT XIM eru HAP TRLU CONTROLLER EIVER DISPLAY UNTT ATTACHED SIDE I 5 WHEN CONNECTING THE INPUT WIRES FROM WIRELESS REMOTE CONTROLLER STOR FRON Bo OUTSIDE FORCED OFF OR ON OFE CONTROL P PRINTED CIRCUIT BOARD OPERATION CAN BE SELECTED BY REMOTE P PRINTED CIRCUIT BOARD NOTES INDOOR UNIT MTE MS YTE CONTROLLER IN DETAILS REFER TO THE 1 PUSH BUTTON ON OFF 1 TERMINAL oo CONNECTOR INSTALLATION MANUAL ATTACHED TO THE UNIT PILIGNT EMITTING DIODE ON RED FIELD WIRING D CONNECTOR 6 REMOTE CONTROLLER MODEL VARIES PILIGHT EMITTING DIODE 2 IN CASE USING CE RAL REMOTE CONTROLLER CONNECT IT ACCORDING TO THE COMBINATION MER GREE 0 THE UNIT IN ACCORDANCE WITH THE ATTACHED ae CONFIRM ENGINEER DATA PILIGHT EMITTING DIODE NSTALLATION MANUAL AND CATALOGS ETC BEFORE CONNECTING FILT
4. SiUS30 604 List of Electrical and Functional Parts Model Parts Name Symbol FXAQ FXAQ FXAQ FXAQ FXAQ Remark 07MVJU 09MVJU 12MVJU 18MVJU 24MVJU Wired Remote i Remote Controller BRC1C71 Option Controller Wireless Remote Controller BRC7E818 Option 1640W 1943W Fan Motor M1F n Motors Thermal protector 266 F OFF 176 F ON MP24 3SB40333 1 MSFBC20C21 3SB40550 1 Swing Motor M1S AC200 240V AC200 240V E ST8601 2 4 1400 Thermistor Suction Air R1T 20kQ 77 F Thermistor for Heat ST8605 2 8 L400 Thermistors Exchanger High Temp 20 77 F Thermistor for Heat R2T ST8602 2 6 L400 Exchanger 20kQ 77 F Float Switch S1L OPTION Others Fuse F1U 250V 3 15A Model Parts Name Symbol FXLQ FXLQ FXLQ Remark 12MVJU 18MVJU 24MVJU Wired Remote Remote Controller BRC1C71 Onti ion Controller Wireless Remote 20 Controller 1925W 1935W Fan Motor M1F Motors Thermal protector 275 F OFF 248 Capacitor for Fan Motor C1R 0 5uF 450V 1 5uF 450V 2 0uF 450V ST8601 6 4 L1250 Thermistor Suction Air 1 20kQ 77 F Thermistor for Heat ST8605 9 8 L2500 Thermistors Exchanger High Temp 20 77 F Thermistor for Heat R2T ST8602A 9 6 L2500 Exchanger 20kQ 77 F Fuse F1U AC250V 5A Others Transformer 25 25 0
5. Field Setting SiUS30 604 3 1 4 Setting Contents and Code VRV Indoor Unit VRV Mode Setting Setting Contents Second Code No Note 3 System No WItC indoor Note 2 ui Se 93 un 10 20 0 contamination heavy Super i Approx Heavy Approx Settings light Setting for display long life 10 000 5 000 time to clean air filter filter hrs hrs Sets display time to clean air filter to half when there is Long life Approx Approx filter 2 500 1 250 heavy filter contamination hrs hrs Standard Approx Approx filter 200 100 hrs hrs 1 Long life filter type Long life filter Ultra long life filter 2 Thermostat sensor in remote controller No use 3 Display time to clean air filter Display No display calculation Set when filter sign is not to be displayed 12 22 0 Optional accessories output selection Indoor unit Operationoutput Malfunction field selection of output for adaptor for turned ON by output wiring thermostat 1 ON OFF input from outside Set when Forced OFF ON OFF control External ON OFF is to be controlled from outside protection device input 2 Thermostat differential changeover 1 F Set when remote sensor is to be used Note6 3 OFF by thermostat fan speed Set fan speed 4
6. TAJAM MIF IT TO THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL IES ACCORDING TO THE COMBINATION SYSTEM CONFIRM ENGINEERING MATERIALS AND CATALOGS ETC BEFORE CONNECTING FORCED OFF OR ON OFF CONTROL OPERATION CAN BE SELECTED BY REMOTE CONTROLLER TACHED TO THE UNIT T WHITE YLW YELLOW PRP PURPLE GRY GRAY BLU BLUE PNK PINK ORG ORANGE GRN GREEN 3D050501A Appendix 267 Wiring Diagrams SiUS30 604 FXSQ12M 18M 24M 30M 36M 48MVJU INDOOR UNIT WIRED REMOTE CONTROLLER ATP PRINTED CIRCUIT BOARD 817 THERMISTORIAIR POWER SUPPLY A2P TERMINAL BOARD SS1_ SeLecror SwITcH wAlN sua NoTE 5 Cl CONNECTOR FOR OPTIONAL PARTS LOW 5 P OPERA FLU FUSE B5A 250V X1 8ATCONECTOR WIRING ADAPTOR FOR HAP LIGHT EMITTING DIODE ELECTORICAL APPENDICES SERVICE MONITOR GREEN KIR KGRIMAGNETIC RELAY MIF MAGNETIC RELAY MIP MIF MOTOR INDOOR FAN PUMP QIM THERMO SWITCH EMBEDDED RIT THERMISTOR AIR NIT RT THERMI STOR COT L SiL FLOAT SWITCH IRANSFORMER2OS 23N 22V HIGH TERMINAL BLOCKIPOWER Us X2M TERMINAL BLOCKICONTROL ELECTRONIC EXPANSION VALVE 208 230V CONTROL BOX 60Hz X18A
7. 2 1 5 V0916 Group No Setting Centralized Remote Controller Indoor Outside Outside Outside Indoor Outside Outside Outside F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 N 77 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 A m A m L 1 00 Main RC Sub RC Group Control by Remote Contoller 1 01 1 02 autmatic unit address F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 A y N No Remote Controller 1 RC 03 1 04 V0917 Caution When turning the power supply on the unit may often not accept any operation while 88 is displaying after all indications were displayed once for about 1 minute on the liquid crystal display This is not an operative fault Test Operation 107 Field Setting SiUS30 604 3 1 8 Setting of Operation Control Mode from Remote Controller Local Setting The operation control mode is compatible with a variety of controls and operations by limiting the functions of the operation remote controller Furthermore operations such as remote controller ON OFF can be limited in accordance with the combination conditions Refer to information in the table below Centralized controller is normally available for operations Except when centralized monitor is connected 3 1 9 Contents of Control Modes Twenty modes consisting of combinations
8. 2 1 Water Cooled System 2 1 1 Indoor Units Type Model Name Power Supply Ceiling Mounted Cassette Type FXFQ 12M 18M 24M 30M 36M Multi Flow Slim Ceiling Mounted Duct Type FXDQ 07M 09M 12M 18M 24M Ceiling Mounted Built In Type FXSQ 12M 18M 24M 30M 36M 48M Ceiling Mounted Duct VJ Type FXMQ 30M 36M 48M Ceiling Suspended Type FXHQ 12M 24M 36M xxx Wall Mounted Type FXAQ 07M 09M 12M 18M 24M Floor Standing 12M 18M 24M Concealed Floor Standing Type FXNQ 12M 18M 24M New Range of Indoor Units in EDUS39 600 F6 BS Units Series Model Name Power Supply Heat Recovery Series BSVQ 36M 60M VJ 2 1 2 Outside Units Inverter Series Series Model Name Power Supply Inverter Heat Pump Heat RWEYQ 60M 72M 84M 144M 168M 216M 252M TJ Recovery VJ 16 208 230V 60Hz TJ 36 208 230V 60Hz New Range of Outside Units in EDUS30 607 General Information External Appearance SiUS30 604 3 External Appearance 3 1 Indoor Units Ceiling mounted cassette type Multi flow FXFQ12MVJU FXFQ18MVJU FXFQ24MVJU FXFQ30MVJU FXFQ36MVJU Ceiling suspended type FXHQ12MVJU FXHQ24MVJU FXHQ36MVJU Slim ceiling mounted duct type Wal
9. C H SELECT LTI Q2 Fl F2 1 2 Remot contro ler Set the master unit indoor unit having the right to select the cooling heating operation mode In the case of wired remote controllers After the check operation CHANGEOVER UNDER CONTROL is flashing in all connected remote controllers Select an indoor unit to be used as the master unit in accordance with the request from the customer It is recommended to select an indoor unit which will be used most often as the master unit Press the operation mode selector button in the remote controller of the indoor unit selected as the master unit In that remote controller CHANGEOVER UNDER CONTROL disappears That remote controller will control changeover of the cooling heating operation mode In other remote controllers CHANGEOVER UNDER CONTROL lights For the details refer to the installation manual supplied together with the indoor unit Indoor unit V3058 Remote controller In the case of wireless remote controllers After the check operation the timer lamp is flashing in all connected indoor units Select an indoor unit to be used as the master unit in accordance with the request from the customer It is recommended to select an indoor unit which will be used mo
10. 37 1 Refrigerant P os IE 38 1 1 RWEYQ6OMTJU RWEYQ72MTJU RWEYQ84MTUJU 38 1 2 IBSV O86 COM uu uu u prep mu an ppp n vU MR S SER 40 2 Functional Parts Layout T 41 2 1 RWEYQ60MTJU RWEYQ72MTJU RWEYQ84MTUJU 41 Refrigerant Flow for Each Operation 43 3 1 In Case of Heat Pump Connection 43 3 2 In Case of Heat Recovery Connection One Outside Unit Installation entra dens a 45 3 3 In Case of Heat Recovery Connection 3 Outside units Connection semp theta ee iniu pad 49 Table of Contents i SiUS30 604 Part 4 OOO 1 Foncion aset u u u uu u u dll 55 MEE uo u u u u i uu aa 55 tii Me 56 1 3 Normal Operation 57 1 4 BS unit amp Indoor unit operation mode 58 B Vd DM E E M cR p MUS 59 21 Stopping LOO ones
11. SiUS30 604 Field Setting c Monitor mode m LED display Setting item Data display H2P HeP H7P To enter the monitor mode push the Operation backup operation Q MODE button BS1 when in setting Setting mode 1 1 C Hunified address 2 Low noise demand address eO 4 Airnet address O 5 Number of connected indoor units 9 O e Lower 6 digits 6 Number of connected BS units Q o e e Q Selection of setting item Number of connected zone units 7 excluding outdoor and BS unit 9 e e e Push the SET button BS2 and set the LED display to a setting item 8 Number of outside units 2 9 Number of connected BS units 3 o O e pou 4 digits 10 Number of connected BS units 3 o o O o Q e 4 digits Number of zone units excluding n outdoor and BS unit 9 O Lower 6 digits Confirmation on setting contents 12 Number of indoor units 4 e O 2 digits Push the RETURN button BS3 to 13 Number of indoor units 4 9 o o Q Q o Q 4 digits display different data of set items urai ontents of malfunction alfunction 14 the latest code table Contents of malfunction 15 1 cycle before a page Contents o
12. 229 3 1 Nr de oet 229 3 2 fa Malfunction of Transmission between Optional Controllers for RIT s 230 3 3 Improper Combination of Optional Controllers for Centralized uu u bM 232 3 4 Address Duplication Improper Setting 234 4 Troubleshooting OP Schedule Timer 235 4 1 UE Malfunction of Transmission between Centralized Controller and Tabor Unlu rope Q u e OR CHOR SCHO OR tU DTE E RR S gn 235 Rd riis oes mmt 237 Table of Contents SiUS30 604 4 3 fa Malfunction of Transmission between Optional Controllers for Centralized Goni uu u un Y 238 4 4 Improper Combination of Optional Controllers for Centralized E 240 4 5 Address Duplication Improper 242 5 Troubleshooting OP Unified ON OFF Controller 243 5 1 Operation Lamp BIS adus od abb Gilde tie Cis Dl Hd Ca bU GR ELS u usss 243 5 2 Display Under Host Computer Integrate Control Blinks ep ats Single BINK m 245 5 3 Display Under Host Computer Integrate Control Blinks Repeats Double Blink RT 248 Part 7 Procedure for Mounting Dismounting of Switch Box
13. WHT ORG BLU BLK NOTE 4 INPUT FROM OUTSIDE NOTE 3 TRANSMISSION WIRING CENTRAL REMOTE CONTROLLER NOTES 1 TERMINAL BLOCK D CONNECTOR TERMINAL 2 FIELD WIRING 3 IN CASE USING CENTRAL REMOTE CONTROLLER CONNECT IT TO THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTRUCTION MANUAL 4 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE FORCED OFF OR ON OFF CONTROL OPERATION CAN BE SELECTED BY REMOTE CONTROLLER IN DETAILS REFER TO THE INSTALLATION MANUAL ATTACHED THE UNIT 5 IN CASE HIGH E SP OPERATION CHANGE THE WIRING CONNECTION OF X2A AS SHOWN UPPER FIGURE FED BUC 6 SYMBOLS SHOW AS FOLLOWS PNK PINK WHT WHITE YLW YELLOW ORG ORANGE BLU BLUE BLK BLACK RED RED BRN BROWN m 7 USE COPPER CONDUCTORS ONLY Ci M WIE YLW m MLI 551 WIRED REMOTE CONTROLLER OPTIONAL ACCESSORY 3D043176A 268 Appendix SiUS30 604 Wiring Diagrams FXAQ07M 09M 12M 18M 24MVJU
14. 243 Thermistor RET Seren tet 187 Operation Mode 56 Malfunction of Inverter Radiating Fin A 276 Temperature Rise R1T 196 Outdoor Unit Thermistors for Discharge Pipe Malfunction of Inverter Radiating Fin R9TT 32 a ak eoo ih exe Lev 279 Temperature Sensor 205 Outside Unit PC Board Layout 98 Malfunction of Liquid Pipe Thermistor R6T 189 Malfunction of Moving Part of P Electronic Expansion Valve 164 m 203 Malfunction of Moving Part of TIE MN 205 Electronic Expansion Valve Y2E 179 PC Board Defect 155 172 229 237 Malfunction of PC Board 195 AM S 206 Malfunction of Sub Cooling Heat Exchanger Outlet Power Supply Insufficient or Thermistor R5T e uae hier Ren 190 Instantaneous Failure s 210 Malfunction of Suction Pipe Pressure Sensor 193 Precautions for New Refrigerant R 410A 284 Malfunction of Swing Flap Motor MA 162 Pressure Sensor U 280 Malfunction of System Refrigerant System Address Protection Control a 70 227 Malfunction of Thermistor R1T for R Suction Air
15. Fan ns FXFQ FXHQ FXAQ Hot start from defrosting Swing OFF Horizontal Horizontal Horizontal operation Wind direction set OFF Horizontal Horizontal Horizontal Swing OFF Horizontal Horizontal Horizontal Defrosting operation Wind direction set OFF Horizontal Horizontal Horizontal Swing LL Horizontal Horizontal Horizontal Heating Thermostat OFF Wind direction set LL Horizontal Horizontal Horizontal Hot start from thermostat Swing LL Horizontal Horizontal Horizontal OFF mode for prevention of cold air Wind direction set LL Horizontal Horizontal Horizontal Swing OFF Horizontal Horizontal Totally closed Stop Wind direction set OFF Horizontal Horizontal Totally closed Thermostat ON in dry Swing pn Swing Swing Swing operation using micro computer Wind direction set L Set Set Set Thermostat OFF in dry Swing Swing Swing Swing operation using micro OFF or L computer Wind direction set Set Set Set Thermostat OFF in Swing Set Swing Swing Swing Cooling cooling Wind direction set Set Set Set Set Swing OFF Horizontal Horizontal Totally closed Stop Wind direction set OFF Set Horizontal Totally closed Micro computer control Swing L Swing Swing Swing including cooling operation Wind direction set L Set Set Set 1 L or LL only on FXFQ models Function 91 Outline of Control Indoor Unit SiUS30 604 9 10 Freeze Prevention Freeze When the temperature detected by liqu
16. Symbol FXNQ Remark 12MVJU 18MVJU 24MVJU Wired Remote Remote Controller BRC1C71 Option i Controller Wireless Remote ES P Controller 1025W 1035W Fan Motor M1F Motors Thermal protector 275 F OFF 248 F ON Capacitor for Fan Motor 0 5uF 450V 1 5uF 450V 2 0uF 450V ST8601 6 4 11250 Thermistor Suction 1 20kQ 77 F Thermistor for Heat ST8605 9 8 L2500 Thermistors Exchanger High Temp 20 77 F Thermistor for Heat R2T ST8602A 9 6 L2500 Exchanger 20kQ 77 F Fuse F1U AC250V 5A Others Transformer 25 25 0 Appendix 275 Option List SiUS30 604 4 Option List 4 1 Outside Unit Optional Accessories Models RWEYQ6OMT JU RWEYQ144MTJU RWEYQ216MTJU Optional RWEYQT2MT JU RWEYQ168MTJU RWEYQ252MTJU accessories RWEYQ84MTJU COOL HEAT Selector KRC19 26A Fixing box KJB111A KHRP25M33H Max 8 branch KHRP25M33H Max 8 branch HRP25M72H Max 8 branch KHRP25M33H KH Max 8 branch Max 8 branch RP25M72H KHRP25M73HU Max 8 branch for outdoor unit gt Refnet m header KHRP26M22H KHRP26M33H KHRP26M22H KHRP26M33H KHRP26M72H KHRP26M22H KHRP26M33H KHRP26MT72H KHRP26MT3HU Max 4 branch 8 branch Max 4 branch Wax 8 branch Wax 8 branch Max 4 branch 8 branch Max 8 branch 8 branch Refnet KHRP25M22T
17. 164 2 7 AF Indoor Unit Drain Level above 166 2 8 Indoor Unit Malfunction of Capacity Determination Device 167 2 9 CP Indoor Unit Malfunction of Thermistor R2T for Heat eglise P i 168 2 10 CS Indoor Unit Malfunction of Thermistor for Gas Pipes 169 2 11 CS Indoor Unit Malfunction of Thermistor R1T for Suction Air 170 2 12 t Indoor Unit Malfunction of Thermostat Sensor in Remote Controler Uu o n 171 2 13 EP Outside Unit PC Board Defect 172 2 14 Outside Unit Actuation of High Pressure Switch 173 2 15 Outside Unit Actuation of Low Pressure 175 2 16 ES Compressor Motor 177 2 17 ES Outside Unit Malfunction of Moving Part of Electronic Expansi n Valve VIE 179 2 18 F3 Outside Unit Abnormal Discharge Pipe Temperature 181 2 19 FIN 182 2 20 H Malfunction of Water system 184 2 21 J3 Outside Unit Malfunction of Discharge Pipe Thermistor R3T 186 2 22 JY Malfunction of Heat Exchanger Gas Pipe Thermistor 187 2 23 J5 Outside Unit Malfunction of Thermi
18. A 10 5 ft or higher OUT Floor level 0 3 1 0 ft Approx 6 6 ft For illustration purposes only to General Information 5 Features SiUS30 604 1 8 Energy saving Heat recovery Daikin now offers 2 stage heat recovery operation The first stage of heat recovery operation is within the refrigerant system By controlling the BS unit that switches cooling and heating simultaneous cooling and heating operation is made with heat recovery performed between indoor units The second stage of heat recovery operation is within the water loop where heat recovery is performed between the VRV WII units This 2 stage heat recovery operation substantially improves energy efficiency and makes the system the ideal solution to the requirements of modern office buildings where some areas may require cooling even in winter depending on the amount of sunshine received and the number of people in the room Simultaneous heating and cooling operation Heat recovery operation between within the refrigerant system the VRV WII units In mainly cooling partly heating mode the system recycles Heat recovery operation is also available between heat exhausted from the cooling operation to use for heating systems connected to the same water loop with systems In mainly heating partly cooling mode the system uses cooled exchanging heat via water This increases energy post he
19. 255 1 Procedure for Mounting Dismounting of Switch Box 256 14 Procedure Tor Dismounting aa ine oui eh 256 1 2 Procedure tor Mounting tire nieder eaa pk 256 Part 8 Appendix 259 i HERO OD 260 Outside UMTS 260 1 2 Indoor ato 261 1 3 crc 263 2 264 21 chi uuu uu uuu M 264 2 2 Outside Unit Field Wiring rr 265 2 3 Indoor Uniti oni eiie tute ee tao CE FA ra eda 267 24 or 271 List Of Electrical and Functional Parlg u uuu Lu ae dO d ci 272 Imm 272 2 OT 273 d Opiom Eai RT m T T 276 4 1 Optional ACCOSSON OS neren nee 276 5 Thermistor Resistance Temperature Characteristics 278 6 Press sube 280 7 Method of Replacing the Inverter s Power Transistors and Diode ra M 281 7 1 Method of Replacing the Inverters Power Transistors and Diode Modules ee 281 Part 9 Precautions for New Refrigerant R 410A 2
20. 191 When the Float Switch is Tripped and AF is Malfunction of Discharge Displayed on the Remote Controller 84 Pipe Thermistor 186 When the Float Switch is Tripped During Cooling Malfunction of Drain Level OFF by Thermostat 83 Control System S1L 156 When the Float Switch is Tripped During Heating Malfunction of Heat Exchanger Gas Operation seisine 84 Pipe Thermistor 4 1 187 When the Float Switch is Tripped While the Cooling Malfunction of Inverter Radiating Fin Thermostat is sss 83 Temperature Rise R1T 196 Malfunction of Inverter Radiating Fin E Temperature Sensor 205 Electronic expansion Valve Control 89 Malfunction of Liquid Pipe Thermistor R6T 189 Error of External Protection Device 154 Malfunction of Moving Part of External ON OFF input i 104 Electronic Expansion Valve 164 Malfunction of Moving Part of F Electronic Expansion Valve 179 Fan Motor M1F Lock Overload 158 Malfunction of Sub Cooling Heat Exchanger Outlet Faulty Field Setting after Replacing Main PC Board or Thermistor 190 Faulty Combination of PC Board 206 Malfunction of Suction P
21. 229 3 1 mP PC Board qa ERROR MAS sad 229 3 2 8 Malfunction of Transmission between Optional Controllers for Centralized Control ersan un Sai S paha 230 3 3 Improper Combination of Optional Controllers for Centralized Control Ra Ea 232 3 4 ft Address Duplication Improper 234 4 Troubleshooting OP Schedule Timer 235 4 1 UE Malfunction of Transmission between Centralized Controller and Indoor 235 42 nr Board DefeGti uu utpote tts ere dV RM ass apus 237 4 3 n8 Malfunction of Transmission between Optional Controllers for Ceritralized aaa 238 4 4 f Improper Combination of Optional Controllers for Centralized Controlar eei Rei ss 240 138 Troubleshooting SiUS30 604 4 5 me Address Duplication Improper Setting 242 5 Troubleshooting OP Unified ON OFF Controller 243 5 1 Operation Lamp BINKS 243 5 2 Display Under Host Computer Integrate Control Blinks Repeats Single Blink o EIE pas
22. Parts name Symbol neal Master unit operation Slave unit operation Compressor M1C Current step OFF Inverter cooling fan M1 2F Inverter cooling fan control Inverter cooling fan control 4 way valve Main 2081 Y5S OFF OFF 4 way valve for heat exchanger 2082 Y7S OFF OFF Main heat exchanger electronic exp valve EV1 2000 pulse 0 pulse Sub cooling electronic exp valve EV3 0 0 pulse Hot gas bypass solenoid valve SVP 15 ON OFF Water heat exch oil return solenoid valve SVE Y2S OFF OFF Receiver gas charging solenoid valve SVL 5 OFF Receiver gas discharge solenoid valve SVG Y4S OFF OFF Non operation unit liquid pipe stop solenoid valve SVSL Y6S OFF ON Indoor cooling unit fan M1 2F No instruction Indoor cooling unit expansion valve EV Y1E All 0 pulse BS 20RH 20RH Y3S BS unit control BS 20RT 20RT Y1S BS unit control Ending condition Max 5 min Function 79 Special Operation SiUS30 604 7 3 2 Heating amp Simultaneous Cooling Heating Mode Parts name Symbol pas Master unit operation Slave unit operation Compressor M1C Current step OFF Inverter cooling fan M1 2F Inverter cooling fan control Inverter cooling fan control 4 way valve 1 2051 55 4 way valve 2 2052 Y7S Holding Holding Main heat exchanger 20 2 2000 pulse electronic ex
23. pA RR HUM MED PAD RP td DIA 59 E E 61 31 IL o ou ds Re 61 3 2 Crankcase Heater 61 62 4 1 Cooling Start up Control a nennen nnn 62 4 2 Heating Start up 63 4 3 Pressure Equalizing 64 uu u OT T 65 5 1 Gompressor METTUS 65 52 Electronic Expansion Valve Control 67 5 3 Heat Exchange Mode in Heating Operation or Simultaneous Cooling Heating Operation 68 Protection LLULLU a Hip cd cat 70 6 1 High Pressure Protection Contro l L 70 6 2 Low Pressure Protection Control 71 6 3 Discharge Pipe Protection LOO cisco 73 6 4 Inverter Protection Control 74 6 5 Cooling Fan uuu u uuu 75 ecce dos c Nee 76 7 1 Oil Ret rn re Rt 76 7 2 Return Operation of Water Heat 78 7 3 Pump down Residual Operation Control 79 7 4 Reingerant Dri PrevenlOn Q uu u u u ib ta b i oca ec
24. 170 Refrigerant Circuit 38 Malfunction of Thermistor R2T for BSVQ236 60M 40 Heat Exchanger etai poe 168 RWEYQ60 72 8AMTJU tet 38 Malfunction of Thermistor R2T for Refrigerant Flow for Each Operation Mode 43 Su ti n Pipe Sod a ep Dad Rod 188 In Case of Heat Pump Connection 43 Malfunction of Thermistor R3T for In Case of Heat Recovery Connection Gas PIBBS eme beste o 169 Outside units Connection 49 Malfunction of Thermostat Sensor in In Case of Heat Recovery Connection Remote Controller 171 One Outside Unit Installation 45 Malfunction of Transmission between Central Remote Refrigerant Overcharged 182 Controller and Indoor Unit 224 Refrigerant System not Set Malfunction of Transmission between Centralized Incompatible Wiring Piping 226 Controller and Indoor Unit 235 Remote Controller Self Diagnosis Function 147 Malfunction of Transmission between Indoor and Reverse Phase Open Phase 209 Outside Units in the Same System 219 RWEYQOO 72 84 41 Malfunction of Transmission between Indoor Un
25. Heating mode Stopping 20RH OFF OFF 20RT OFF OFF Thermostat ON Depend on Depend on Indoor Fan remote controller remote controller Indoor EV Indoor unit control Indoor unit control 20RH OFF OFF OFF EE 4 20 OFF OFF FF Cooling Depend on Depend on Depend on Depend on remote controller remote controller remote controller remote controller Indoor EV 0 pulse 0 pulse 0 pulse 0 pulse 20RH OFF OFF OFF OFF Stoppin 20RT OFF OFF OFF OFF 5 pping Indoor Fan OFF OFF OFF OFF 5 Indoor EV 0 pulse 0 pulse 0 pulse 0 pulse 20RH ON ON 20RT ON OFF Thermostat ON Depend on Depend on Indoor Fan remote controller remote controller Indoor EV Indoor unit control Indoor unit control 20RH ON on Eu on Heating 20RT OFF FF FF FF Thermostat OFF indoor Fan LL LL LL LL Indoor EV 0 pulse 200 pulse 200 pulse 0 pulse 20RH ON OFF 1 ON 2 1 20RT OFF OFF OFF FF Stopping Indoor Fan OFF OFF OFF OFF Indoor EV 0 pulse 2 200 pulse 0 pulse 1 The switch for the BS unit is operated when pressure equalization control turns on after cooling heating mode of other indoor unit is changed or on the timing of oil returns If 20RH ON depend on indoor control 200 pulse If 20RH OFF 0 pulse 58 Function SiUS30 604 Stop 2 Stop 21 Stopping Operation This operation is used to define the operation of the actuator while the system stops 2 1 1 When Sy
26. expansion valve excessively throttled 2 Faulty control In cooling Dirty water heat exchanger Mixing in of non condensable gas capacity High water temperature at the water heat exchanger inlet Decrease in water Clogged water piping system Degradation in condensing ofthe water heat exchanger Faulty water pump Mixing in of non condensable gas lt Check to be sure the stop valve is open Conduct visual checks for pipe conditions lt Is there any temperature difference around the filter or the branch pipe Are the coil resistance and insulation normal Are the voltage characteristics normal lt Does the pressure value of the Service Checker match the reading of the pressure sensor Are the coil resistance and insulation normal lt Are the voltage characteristics normal lt 15 the connector properly connected Are the thermistor resistance characteristics normal lt Does the pressure value of the Service Checker match the reading of the pressure sensor lt Is the heat exchanger clogged in cooling lt Is air or else mixed in the refrigerant system lt Is the water temperature at the inlet not more than 113 F lt Is the strainer or the like clogged lt Does the water pump function normally lt Is air or e
27. Indoor unit 1 Fan 9 Electronic expansion valve A Solenoid valve Indoor unit Thermostat Bs unit Cooling og Capilary ibe Check vale Solenoid valve Indoor unit Thermostat Bs unit Indoor unit 4 Y Electronic expansion valve a i Capilary ibe Check valve 1 Solenoid valve 59 p k Indoor unit Thermostat Outside unit 2 Outside unit 3 High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure liquid or gas 4 8 Filter 25 control Heat exchanger Sub cooling gt 4 Solenoid valve Capillary Electronic expansion valve inlet DQ Plate heat Solenoid valve exchanger tube Water port Four way valve tube Capillary p tube ON ON OFF control by receiver pressurerising separat r less INHHsENeL Gauge port conection 20 High pressure sensor 4 HPS High pressure switch Compressor VU flare connection Solenoid valve Filter fusible DO ru sae expansion valve filter i i i Water Heat exchanger Sub cooling Solenoid valve
28. 187 2 23 J5 Outside Unit Malfunction of Thermistor R2T for Suction Pipe 188 2 24 JT Malfunction of Liquid Pipe Thermistor R6T 189 2 25 J5 Malfunction of Sub Cooling Heat Exchanger Outlet Thermistor mer rS 190 2 26 UA Outside Unit Malfunction of Discharge Pipe Pressure Sensor 191 2 27 JC Outside Unit Malfunction of Suction Pipe Pressure Sensor 193 Troubleshooting 137 SiUS30 604 2 28 Outdoor Unit Malfunction of PC Board 195 2 29 L Outside Unit Malfunction of Inverter Radiating Fin Temperature Rise R1T 196 2 30 45 Outside Unit Inverter Compressor Abnormal 197 2 31 48 Outside Unit Inverter Current Abnormal 198 2 32 L9 Outside Unit Inverter Start up Error sseeee 200 2 33 Lt Outside Unit Malfunction of Transmission between Inverter and Control PC 201 2 34 Outside Unit Inverter Over Ripple Protection 203 2 35 Outside Unit Malfunction of Inverter Radiating Fin Temperature Sensor 205 2 36 Outdoor Unit Faulty Field Setting after Replacing Main PC Board Faulty Combination of PC 206 2 37 Ut Low Pre
29. e e 9 9 9 9 L4 9 e e 9 9 9 9 e e 9 e L5 9 e e 9 e 9 9 e L8 9 o e 9 e e e 9 e e L9 9 9 e e 9 9 Q e LC 9 e 9 9 e e 9 e P1 9 e 9 e e e 9 e e 9 9 9 9 9 9 e e P4 9 9 e e 9 e e PJ 9 9 9 e 9 9 e e O ON O RsvC v c lt L j Malfunction code 1st Malfunction code 2nd Q Blink digit display section Blink digit display section Master Malfunction e OFF e OFF Slave 1 e cation Slave 2 0 Troubleshooting 151 Troubleshooting by Remote Controller SiUS30 604 To enter the monitor mode push the Contents of malfunction Malfunction MODE button BS1 when in code Setting mode 1 Gas shortage Gas shortage alarm UO Reverse phase Reverse phase error U1 Abnormal power supply voltage Insufficient inverter voltage U2 Refer P 122 for Monitor mode Inverter open phase phase T Charging error of capacitor in inverter main circuit No implementation of test run U3 Transmission error between indoor and transmission error 04 Selection of setting item outdoor unit Push the SET button BS2 and set nsn the LED display to a setting item units duplication of IC address Transmission error of other system Indoor unit system malfunction in other U9 Sys
30. ing wi edid pinbr1 edid efBieuosiq edid 9m WIPE Josuas m 1058314002 und pns m p1003105 aqn V 105035 asnssasd 4614 1 0390 m gt Buisueunsseid 1 2 1 g Ionuoo 440 NO 42249 27 Q am BALRA fea INOJN iene 1284 K S aqn 2001199 2 2 3 0A 1103 118111423 1104 181110 3211136 1 991 TREPA 1 1094 91914 Pa u 1 ai m 5 1312M aygisng se MoT pinbij eansseud uiu episino V NOW AAA 198 6411211631 31155914 DK 104910 uoneJjedo Joopu NO 1e150U48U NOs i 19119 911049915 A ue 1 NO sowy 29114 EENE E Q D uolsuedx 91404993 OP l l A l l 1 Joopu NO sowy
31. 1 VRV system VAV indoor unit FCJ 2 VRV system Outdoor air processing unit F VRV system Standard indoor unit Indoor unit model code display H VRV system New ceiling suspended cassette Y Indoor unit type code lispection est Push the button Display Type Model operation A Wall mounted FXAQ F Multi flow FXFQ 1 H Ceiling suspended FXHQ AA 1 J Built in FXSQ L Floor standing FXLQ Outdoor or outside unit model code display P Concealed ceiling duct FXMQ L Concealed floor standing type FXNQ Inspection test Push the button 3 Slim Ceilling mounted duct FXDQ operation Test operation Outdoor or outside unit model code Test operation mode Display Type Model Inspection test AA1 VRV System Inverter K Series RSXYP Operation Push the button R 407C VRV PLUS Series RXYP A92 Heat Recovery Series RSEYP 5 High COP type R 407C L Series RSXYP L AAA VRVII RXYQ M 96 VRV II Heat Recovery REYQ M AFC VRV II Water cooled inverter series RWEYQ M V2775 144 Troubleshooting SiUS30 604 Troubleshooting by Remote Controller 1 5 Remote Controller Service Mode How to Enter the Service Mode Normal operation Field set Service mode mode mode the button for 4 seconds or nae the button for 4 seconds or longer VF020 Service Mode 1 Select the mode No Operation Set the desired mode No with the button Method For wireless remote c
32. Bullooo lt gt uoisuedxe 9140442913 NO 1oopul anea pousps Brett em sdeo edu sg u anea pousps Ean payg 9 m edu yun sg dE yun sg Sun Joopul 19410 OL 47 Refrigerant Circuit Refrigerant Flow for Each Operation Mode SiUS30 604 48 Refrigerant Circuit SiUS30 604 Refrigerant Flow for Each Operation Mode 3 3 In Case of Heat Recovery Connection 3 Outside units Connection A Cooling Operation To other indoor units High temperature high pressure gas High temperature high pressure liquid Bs unit E Outside unit 1 Outside unit 2 Outside unit 3 Low temperature low pressure liquid or gas XC 7 7 7 7 7 7 7 7 7 7 7 7 Solenoid valve 7 7 7 7 7 7 7 7 Solenoid valve 7 7 B 7 7 Filter Fusible Filter Fusible Electronic i gt q E plug Electronic i gt
33. NO Is a parallel interface connected Is the schedule timer s individual combined connector connected there two or more optional controllers for centralized YES control connected with the connector for setting Reset the power supply for all optional controllers for centralized control simultaneously If the malfunction is still not cleared Cannot be used in combination with a wiring adaptor for electrical appendices Remove the wiring adaptor for electrical appendices and reset the power supply for all optional controllers for centralized control simultaneously Schedule timer and parallel interface cannot be used in combination Disconnect either the schedule timer or parallel interface and reset the power supply for all optional controllers for centralized control simultaneously Disconnect the schedule timer s individual combined connector and reset the power supply for all optional controllers for centralized control simultaneously Arrange so that the connector for setting master controller is connected to one controller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously Disconnect the connector for setting master controller from the master controller connect to another optional controller for centralized control and simultaneously reset all optional controllers fo
34. 1 125 E Seeds 5 0 THRA j one 9 02 9 05 f 17171 TE TITE eg P MPa 4 12 9 2 w k9 Bem er TS Sts 50 100 150 200 250 300 350 400 450 500 550 600 650 h Pressure Enthalpy curves of HFC 32 125 50 50wt 284 Precautions for New Refrigerant R 410A SiUS30 604 Precautions for New Refrigerant R 410A m Thermodynamic characteristic of R 410A DAIREP ver2 0 Temperature Steam pressure Density Specific heat at constant Specific enthalpy Specific entropy C kPa kg m pressure kJ kgK kJ kg KJ KgK Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor 36 13 40 83 46 02 51 73 58 00 64 87 72 38 80 57 89 49 99 18 101 32 109 69 121 07 133 36 146 61 160 89 176 24 192 71 210 37 229 26 249 46 271 01 293 99 318 44 344 44 372 05 401 34 432 36 465 20 499 91 536 58 575 26 616 03 658 97 704 15 751 64 801 52 853 87 908 77 966 29 1026 5 1089 5 1155 4 1224 3 1296 2 1371 2 1449 4 1530 9 1615 8 1704 2 1796 2 1891 9 1991 3 2094 5 2201 7 2313 0 2428 4 2548 1 2672 2 2800 7 2933 7 3071 5 3214 0 3361 4 3513 8 3671 3 3834 1 4002 1 4175 7 4166 8 Precautions for New Refrigerant R 410A 285 Precautions for New Refrigerant R 410A SiUS30 604 1 2 Service Tools R 410A is used under higher working pressure compared
35. Disconnect the connection between the compressor and the inverter and turn on the power transistor check mode setting using Setting Mode 2 on the outside PCB Measure the output voltage of the inverter 2 Note Take measurements while frequency is stable The output voltage among three phases is within 5V of power supply NO gt Replace the inverter PCB gt Replace the main PCB 1 For thermistor sensor characteristics refer to page 278 279 The quality of the power transistor diode module can be assessed by means of measurement of resistance between terminals page 281 282 Troubleshooting 185 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 21 J3 Outside Unit Malfunction of Discharge Pipe Thermistor R3T Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting JF RWEYQ60 72 84MTJU Malfunction is detected from the temperature detected by discharge pipe temperature thermistor When a short circuit or an open circuit in the discharge pipe temperature thermistor is detected m Defect of thermistor for outside unit discharge pipe W Defect of outside unit PC board A1P N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occur
36. ONIMVYC M0138 OL 9NIQHOOOV dlV FHL 2554 55 HOLIMS H012313S 135 45 2 SIHL NI NO 2 QNVg8 V STVNIWH3I OL 11 193NNOO AM0SS329V 1VNOIIdO H012313S 1 3 1002 ONIS N3HM ONIHIM 1314 77 dAV19 3HIM O 40123 09 le ol IVNINH3L S310N LINN 000100 HOLdVQV 3018 21 38 11 1081402 1 3 ONTHIMHOLOINNOD VBIX AEZ ADEC BOZ HINHOISNVHL HLL SlHVd 1VNOLIdO HOI 3NNO 4911081409 3104 40 01124145 300 311033 431713 35104 27 217 HOLIMS 10123115 2 LSS 3411 398vis 0 341VA SEA 2113N9VN JHE HUI INIT Q10011 341VA 1043105 SIA 4338 801 NOW 3211856 80123115 2 41815 TWNIWH3 31010 9NILLIN3 18911 1041409 91915 TWNIWHIL WZX HIMOd dIHLS 8 08 1103981 3114 dil V 271 Appendix List of Electrical and Functional Parts SiUS30 604 3 List of Electrical and Functional Parts 3 1 Outside Unit 3 1 1 RWEYQ60 72 84MTJU Item Name Symbol vet RWEYQ6OM 72M 84MTJU Type JT100GCVDK SA Compressor Inverter OC protection M1C device 269A Electronic expansion valve Main Fully closed Fully open 2000pls Electronic expansion valve Subcool Y2bE Fully closed Opls Fully open 2000pls High pressure For M1C HPS OFF 580 9 Psi ON 435421 75
37. VP20 VP20 VP20 Tam ripe External Dia 1 Internal Dia 3 4 External Dia 1 Internal Dia 3 4 External Dia 1 Internal Dia 3 4 Machine Weight Mass Lbs 55 80 90 4 Sound Level H dBA 42 44 46 Safety Devices Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve Connectable Outdoor Unit R 410A Series R 410A Series R 410A Series Standard Accessories Operation Manual Installation Manual Drain Hose Paper Pattern for Installation Clamp Metal Insulation for Fitting Clamps Washers Operation Manual Installation Manual Drain Hose Paper Pattern for Installation Clamp Metal Insulation for Fitting Clamps Washers Operation Manual Installation Manual Drain Hose Paper Pattern for Installation Clamp Metal Insulation for Fitting Clamps Washers Drawing No C 4D049326 Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping 25ft Horizontal 2 Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping 25ft Horizontal 3 Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat
38. normal Faulty liquid pipe thermistor lt Is the connector properly connected Faulty of indoor unit Are the thermistor resistance superheated characteristics normal degree control Faulty control PCB Faulty outside Faulty valve coil lt Are the coil resistance and insulation normal unit electronic In heating expansion valve Faulty valve body If the outside unit electronic Faulty low pressure sensor Are the voltage characteristics normal expansion valve 1 excessively Faulty control Faulty suction pipe thermistor Is the connector properly connected opened Gk Are the thermistor resistance characteristics normal 2 Faulty control PCB Does the pressure value of the Service Checker match the reading of the pressure sensor Dirty evaporator Is the heat exchanger clogged Faulty fan motor Can the fan motor be rotated with hands In cooling Decreased Are the motor coil resistance and fan output insulation normal Decreased Faulty control PCB fan airflow including capacity setting rate High air Dirty filter lt Is the air filter clogged Degradation in passage L evaporation resistance Obstacle lt Is there any obstacle in the Capacity air passage Dirty water heat exchanger lt 15 the water heat exchanger clogged In heating Decrease IN Clogged water piping system lt Is the strainer or other parts clogged water heat exchanger Faulty water pump lt Does the water pump function normally In cooli
39. to turn the tank upside down How to charge with other tank E Charge with the tank upside down J After the vacuum drying is finished charge the additional refrigerant in its liquid state through the liquid shutoff valve service port Taking into account following instructions W Check that gas and liquid shutoff valves are closed W Stop the compressor and charge the specified weight of refrigerant If the outside unit is not in operation and the total amount cannot be charged follow the Additional refrigerant charge procedure 2 shown next page 130 Test Operation SiUS30 604 Field Setting m Procedures for charging additional refrigerant Heat pump system Close Pressure B amp 2 0 Outside unit Liquid Outside unit N Note N Caution side reducing valve Charge hose ASA 59 Valve L J 5 2 ZEN Shutoff valve service port NS To indoor unit Measuring instrument Vacuum pump sss Dotted lines represent onsite piping Heat recovery system Suction gas side Discharge S pee ges side Outside unit Outside unit Pressure pees m Liquid reducing valve side Charge hose i R 410A E2 tank Wilh o a siphon Shutoff valve service port To indoor M ring instrument units BS units ee Va
40. 2 2 2 fool L3 iom 3 cooling cooling cooling VRV WII 2 cooling cooling heating heating Heat absorption tendency VRV WII heat recovery operation mainly heating JL D part cooling operation Heat absorption Heat absorption MEM Ea from loop heating heating Heat absorption operation VRV WII all heating operation I om PLN VRV WII X X Heat absorption heatini heatini heatini heating heating heating heating from loop g 3 Notes e Operation modes and E are applicable when the outside temperature is 95 F and 32 F respectively The other modes are applicable under typical outside conditions Above system configurations are for illustration purposes only 6 General Information SiUS30 604 Features 1 4 Enhanced usability A variety of functions that realize easy installation and improve reliability Features a pump interlock function that controls the pump of the heat source simultaneously with the starting of the VRV WII unit This significantly simplifies operation and management Employs DIII NET to enable the shared Standard system heating and cooling switching operation Easily responds to simultaneous heating BS unit and cooling needs By adding suction gas piping and a BS unit sold separately simultaneous heating and cooling operat
41. Is the master controller s connector for setting master controller disconnected YES gt Connect the connector correctly gt Replace the central PC board V2836 236 Troubleshooting SiUS30 604 Troubleshooting OP Schedule Timer 4 2 m PC Board Defect Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting ni Schedule timer Detect an abnormality in the DIII NET polarity circuit When polarity and polarity are detected at the same time m Defect of schedule timer PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Reset power supply Does the YES System return to normal External factor other than equipment malfunction noise etc gt Replace the indoor unit PC board NO V2837 Troubleshooting 237 Troubleshooting OP Schedule Timer SiUS30 604 4 3 na Malfunction of Transmission between Optional Controllers for Centralized Control Remote nag Controller Display Applicable Schedule timer Models Method of Detect the malfunction according to DIII NET transmission data The system will be automatically Malfunction reset Detection Malfunction When no master controller is present at the time of
42. ON RIT R2T R3T SIL TIR xw XIM 5 P OPERATION T2 NOTE 4 INPU UTSIDE PAPE PUT FROM OUT F2 NOTE 3 ORG TRANSMISSION WIRING F1 I CENTRAL REMOTE CONTROLLER P2 X2M u 30 36 48 TYPE NOTES UI ge 1 TERMINAL BLOCK 55 D CONNECTOR O TERMINAL YLW MIE 2 FIELD WIRING 30 36 48TYPE 3 IN CASE USING CENTRAL REMOTE CONTROLLER CONNECT IT TO 3 j THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTRUCTION MANUAL m 4 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE FORCED OFF OR ON OFF CONTROL OPERATION B M CAN BE SELECTED BY REMOTE CONTROLLER IN DETAILS REFER TO THE INSTALLATION MANUAL ATTACHED THE UNIT REDL GRY BLK 27 5 IN CASE HIGH OR LOW E SP OPERATION CHANGE OVER THE WIRING CONNECTION FROM 4 A2P TO OR 5 Y 6 SYMBOLS
43. nem 206 2 37 00 Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansi n Valve 207 2 38 UP Reverse Phase Open Phase centes 209 2 39 U2 Power Supply Insufficient or Instantaneous Failure 210 2 40 Check Operation not Executed 212 2 41 U Malfunction of Transmission between Indoor Units 213 2 42 us Malfunction of Transmission between Remote Controller and E r 215 2 43 UT Malfunction of Transmission between Outside Units 216 2 44 U8 Malfunction of Transmission between Master and Slave Remote Controllers 218 2 45 U9 Malfunction of Transmission between Indoor and Outside Units in the Same System 219 2 46 UR Indoor amp Outside Units and Remote Controller zin c 221 2 47 UC Address Duplication of Centralized Controller 223 2 48 UE Malfunction of Transmission between Centralized Controller and iv dli dee M EE 224 2 49 Refrigerant System not Set Incompatible Wiring Piping 226 2 50 Malfunction of System Refrigerant System Address Undefined 227 Troubleshooting OP Central Remote Controller
44. 0000000 12 HAD ACI sisse Em 13 General Information Features SiUS30 604 1 Features A water cooled intelligent individual air conditioning system suitable for tall multistoried buildings This unique system can perform as heat pump or heat recovery to any suitable application Cooling tower Boiler for heating Water piping AL mA Hi Cooling tower Closed type F boiler NA BS E VRV WII t M Ca BRE Refrigerant piping To Indoor units Cutting edge technologies High thrust mechanism The compact unit is packed with the latest technologies 3 a Reluctance DC scroll compressor Water pipe less internal structure Heatexchanger Smooth sine wave DC Inverter Evaporating condensing ability By adoption of the Sine Wave which smoothes rotation of motor operation efficiency is improved sharply 2 General Information SiUS30 604 Features 1 1 Design flexibility Enhanced design flexibility Water cooled VRV II uses water as its heat source so is eminently suitable for tall multistory or large buildings because the system can tolerate up to 284 2psi water pressure Furthermore if the currently installed heat source water temperature is between 50 F and 113 F it may be possible to use the existing water pipe work and
45. 26 Specifications SiUS30 604 Specifications Slim Ceiling Mounted Duct Type Model FXDQ18MVJU FXDQ24MVJU 1 Cooling Capacity Btu h 18 000 24 000 Heating Capacity Btu h 20 000 27 000 Casing Color Galvanized Steel Plate Galvanized Steel Plate Dimensions HxWxD in 7 7 8 x 35 7 16 24 7 16 7 7 8 x 43 5 16 x 24 7 16 Coil Cross RowsxStagesxFPI 3x12x17 3x12x17 Fin Coil Face Area ft 1 89 244 Model Type Sirocco Fan Sirocco Fan Motor Output HP 0 17 0 17 Fan Air Flow Rate H L cfm 440 350 H L 580 460 H L Static Pressure Pa 44 15 44 15 Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polyethylene Foamed Polyethylene Air Filter Removal Washable Mildew Proof Removal Washable Mildew Proof Liquid Pipes in 1 4 Flare Connection 3 8 Flare Connection Piping Gas Pipes in 1 2 Flare Connection 5 8 Flare Connection Connections VP20 20 Drain Pipe n External Dia 1 1 32 Internal Dia 25 32 External Dia 1 1 32 Internal Dia 25 32 Machine Weight Mass Lbs 63 71 5 Sound Level H L dBA 35 31 36 32 Safety Devices Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Refrigerant Control Electroni
46. Control of heat exchange capacity balance 68 Function SiUS30 604 Normal Control Three outside units installation AGR gt 0 Master unit Slave unit 1 Slave unit 2 Four way changeover valve for heat exchanger Y7S For the OFF OFF OFF application of heat exchanger Condenser Condenser Condenser Content of the control of electronic expansion valve Y1E Control of heat exchange capacity balance Control of heat exchange capacity balance Control of heat exchange capacity balance scr faaroo Master unit Slave unit 1 Slave unit 2 Four way changeover valve for heat exchanger Y7S For the OFF OFF OFF application of heat exchanger Condenser Condenser Condenser Content of the control of Control of heat exchange Control of heat exchange 0 pulse electronic expansion valve capacity balance capacity balance AGR gt 0 Master unit Slave unit 1 Slave unit 2 Four way changeover valve for heat exchanger Y7S For the ON ON application of heat exchanger Condenser Evaporator Evaporator Content of the control of Control of heat exchange electronic expansion valve capacity balance 0 pulse O puls AGR gt 0 AGR lt 0 Master unit Slave unit 1 Slave unit 2 Four way changeover valve for heat exchanger Y7S For the ON ON application of heat exchanger Condenser Evaporator Evaporator Content of the
47. 204 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 35 Outside Unit Malfunction of Inverter Radiating Fin Temperature Sensor Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting RWEYQ60 72 84MTJU Resistance of radiation fin thermistor is detected when the compressor is not operating When the resistance value of thermistor becomes a value equivalent to open or short circuited status m Malfunction is not decided while the unit operation is continued P4 will be displayed by pressing the inspection button W Defect of radiator fin temperature sensor W Defect of inverter PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Measure the resistance of radiation fin thermistor Is the NO resistance of thermistor gt Replace inverter PC board correct Thermistor can not be removed from inverter PC board NO Is the resetting possible Replace inverter PC board gt After resetting restart V2818 2 Refer to thermistor resistance temperature characteristics table on P278 Troubleshooting Troubleshooting by Indication on the Remote Controller SiUS30 604 2 36 PU Outdoor Unit Faulty Field Setting after
48. 279 SiUS30 604 Pressure Sensor 6 Pressure Sensor Pu Detected Pressure High Side P Detected Pressure Low Side Output Voltage High Side Vi Output Voltage Low Side Voc 1 38V 0 69 PL 0 57V 0 28 High pressure Detected Pressure 2 3S gc 55 5 85 22 RES gt gt G n c T _ non pes E 2 o o z d 0 5 72 Voc V3053 Output Voltage Appendix 280 SiUS30 604 Method of Replacing the Inverter s Power Transistors and Diode Modules 7 Method of Replacing the Inverter s Power Transistors and Diode Modules 7 1 Method of Replacing the Inverter s Power Transistors and Diode Modules Inverter P C Board Inverter PC board A1P PC0208 Fasten Tab Ne Bi 74 VN X10A X11A in af N3 P3 P2 P1 L1 L2 L3 U V WN Electronic circuit P1 2 4 DM IGBT T 195 lt 1K L1 L2 gt x ry lt amp A Ing H t E U V N X11A V2895 Decision according to continuity check by analog tester W Before checking disconnec
49. EOT93NNNOO HOL 31545 AUR 40123135 1Y38 1002 dZV 310000 H3NOd HEA 574 AY13E 2L13NOVN ESIWQV uOI93NNOD VhZX 427730188 30010 41 594 AV138 2LL3NOVN UB CNOO 1615 30 2 1 TYNINYS TION AWOSSIOOV TYNOIIdU 803 BOLOSNNOD INANI 5321430 Al3dvS dl 204 41M AY13U 2113NDYM uL 91815 30 t LINHO XOUTHSINI dXY 102 1072 M3WHO4SNVHI 91 SPA AY13H 2LLINOVN 49 8 310N 51 4 13114415 131 HOIH HOLIMS 3H SS3Ud 415 91 SEA AV13H OLI3NDVM 70 10 NOISSINSNVHI 1110 M01 HOSN3S 3H0SS3Hd ldNlS diY SIA 21L3NDVM y woodtno H38W0S8V 30875 5 317 HOSN3S 34055344 HdNIS 40 A138 OLLINDVI 3803 3114434 E3ITI3 3S ON JEZ 3418 011 H3A13938 0151 3 1 ou 424 81241402 2LL3NOVM H 3025 3AL 3809 3118833 3S ON 217 9811002 809 HOISINEGHI 90 HOLOVINOD 2LL3NOYN Di VADO I3 DAY MW T INWA SLA 3414 5 0 X3H HO1SINB3HI N5389 0LTNON 10114 3414 111011 3ATYA 1043105 594 5 2511 DIN WOLSINUSHL a OdMQ3 19 NW AYM T JAVA 01043105 SGA 8011215 HOISINHJHI H WIDTH 153 42 TH ound 54 W3AI303 3ATVA 01043105 534 90 N13 HOISINU3HI 398080 HO1INOW 3914835
50. Fa Faulty control PCB Low suction air Short circuit Are the voltage characteristics normal lt Does the pressure value of the Service Checker match the reading of the pressure sensor Are the voltage characteristics normal Are the coil resistance and insulation normal Does the pressure value of the Service Checker match the reading of the pressure sensor Are the coil resistance and insulation normal Check for the thermistor resistance and connection Check for the thermistor resistance and connection lt Does the pressure value of the Service Checker match the reading of the pressure sensor Are the coil resistance and insulation normal Are the voltage characteristics normal Check for the thermistor resistance and connection Is the suction air temperature not less than 57 2 F temperature of indoor unit Low ambient temperature lt Is the indoor temperature not more than 57 2 F lt Is the connector properly connected Are the thermistor resistance characteristics normal 4 Faulty fan motor Can the fan motor be rotated with hands Are the motor coil resistance and Faulty control PCB including capacity setting insulation normal If a spare PC board is mounted is the capacity setting properly made
51. Functional Parts Layout SiUS30 604 2 1 2 Sensors Plan 2 H Thermistor Heat exchanger gas pipe al s 25 R3T Thermistor M1C Discharge pipe Front View s eJ D 5 Thermistor a 11 Sub cooling heat exchanger R6T Thermistor T E Receiver liquid pipe 40 run a R2T Thermistor Suction pipe 42 Refrigerant Circuit Refrigerant Flow for Each Operation Mode SiUS30 604 3 Refrigerant Flow for Each Operation Mode In Case of Heat Pump Connection ing Operat 3 1 lon A Cool 5 episino Jeujo OL gt edid pinbrq edid eBieuosiq uonoeuuoo edid edid sef NO 1 uoisuedxe um jim senseri 1053140 194 i A0 1009105 aqn vA el Ale 142 2116 aunssaud saa 105035 91155919 ubi Hanas HN _ 1 NO Joopu 1013300 221 m
52. SiUS30 604 24 BS Uni BSVQ36M 60MVJU ve90sr0de 1 NINO SHOLONGNOD 834402 ISN L 3u Q3H 39 MOTI3A MTA KINO LINN Sg 1 OL 531 144 TWANWW NOLLVTIVISNI OL LINA HOOQNT OL E 21122 ONIHIM NOISSINSNYEL 7j M zr ALIA id sr bae Ee iU s pM E 3 Clos A H dee LINN 000000 OL 1 5 sm LAH aae 73178 WX N SIX 217 X08 SIN3NOdNO 21812313 gt lt gt 577 E zu SES Tag ER SIM DG matene an meka iee a VOIX g 2 TUR TS 5 310N dv au nx 401 LINN S8 SIT 1409 dll T gez eeu NOE 2 802 AlddNS H3M0d sa 1 110 23914 GNI 3 SS vu0 9u0 3ms ma 104 Sv MOHS 5109 5 9 NVHOYIGO 1 1 SIHI 9 43334 WcX NO 2381 HL OL SV gt
53. V2825 218 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 45 U9 Malfunction of Transmission between Indoor and Outside Units in the Same System Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes uS All models of indoor units Detect the malfunction signal of any other indoor unit within the system concerned When the malfunction decision is made on any other indoor unit within the system concerned Malfunction of transmission within or outside of other system Malfunction of electronic expansion valve in indoor unit of other system Defect of PC board of indoor unit in other system Improper connection of transmission wiring between indoor and outside unit Troubleshooting 219 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred ug has been displayed for 2 minutes or more Turn on all indoor units The UA display blinks on the remote controllers of other YES gt Re diagnose by display after passage of 2 minutes or more units within the same refrigerant system The A1 display blinks on the remote controllers of NYES
54. When the Normal demand setting is set to ON OFF has been set at factory the power consumption can be set with the Demand 1 level setting 70 of rated power consumption has been set at factory The power consumption set with Demand 1 level setting V3082 he case of A and B n The power consumption can be set with the Demand 1 level setting 70 of rated power consumption has been set at factory The power consumption set with Demand 1 level setting Demand level 2 instructing During normal demand operation when the external demand instruction is received repeatedly the instruction with higher demand level has the precedence V3083 Test Operation 127 Field Setting SiUS30 604 Detailed Setting Procedure and Demand Control 1 Setting mode 1 H1P off In setting mode 2 push the BS1 MODE button one time Setting mode 2 is entered and H1P lights During the setting mode 1 is displayed In low noise operation and In demand control are displayed 2 Setting mode 2 H1P on In setting 1 push and hold the BS1 MODE button for more than 5 seconds Setting mode 2 is entered and H1P lights Push the BS2 SET button several times and match the LED display with the Setting No yo
55. fh nro ae Josuas 105591000 1019105 aqn A LE 1155914 yry i 105035 46H 1 101190002 3101 JI 1104 26109 Y 1 1 19010115 H Buisueunsseid Aq jonuoo 440 NO 1090477 e aapea 3208 AJOA i BAJDA 2103 n aq aqn 6111010691 311 944 N uo 1110 3211195 13104 aan ape pras npn 1304009 aei pituatts zs 1094 91014 55 1 2 Ez T Q i 2 BAJRA 0154249 3140413913 onid 6 AALA 1009105 se ainssaid enjejeduie eunsseid y IH seb eiunsseid episino uonejedo Joopu 5 19119 JeDueuoxe 1 Joopu uolsuedx ue4 Se 19119 N G gt uolsuedx 914043923 ewe pousog Eey eme edm fede ien cau T lt aye ppuaos BLU anpen yooud emu S
56. 196124202 BAJBA 10 9105 1094 91014 1 pu OIM BAJRA 2100112913 10 eanssejd eunjereduje MOT Seb einsseid Refrigerant Flow for Each Operation Mode B Heating Operation TR 4 1 imi 2 134012 19 21020495 1 Cl un episino 1811 5u11e n634 21155914 04910 Jabueyoxa 11003 91 uoneJjedo Joopu NO 1elsouu u 400pu 19 1 uolsuedx Sluono l3 t 19114 9 9Iu04129 3 Ge T JeDueuoxe 440 1e1souu eu 1oopul Bune H d uoisuedxe Sluono la NO t Joopu UL s JUN Joopul 18410 OL Refrigerant Circuit 44 Refrigerant Flow for Each Operation Mode SiUS30 604 3 2 In Case of Heat Recovery Connection One Outside Unit Installation ion Operat ing A Cool edid pinbr1 edid edid uonong
57. 9 1 1 When the Float Switch is Tripped While the Cooling Thermostat is ON Remote controller A3 flashing malfunction stop ON Thermostat running OFF ON Float switch OFF ON Drain pump OFF gt 5 min 5 min 5 sec 1 Residual operation Malfunction residual VLOO8 1 The objective of residual operation is to completely drain any moisture adhering to the fin of the indoor unit heat exchanger when the thermostat goes off during cooling operation 9 1 2 When the Float Switch is Tripped During Cooling OFF by Thermostat Enters malfunction treatment if the float switch is not reset within 5 minutes Remote controller A3 flashing malfunction stop Thermostat ON running OFF ON Float switch OFF ON Drain pump OFF lt gt lt gt 5min 5 lt 5 5 sec VL009 Function 83 Outline of Control Indoor Unit SiUS30 604 9 1 3 When the Float Switch is Tripped During Heating Operation Remote controller flashing malfunction stop Thermostat ON running ON Humidifier OFF ON Float switch OFF ON Drain pump OFF lt _ gt lt gt 5min 5 5 VLO10 During heating operation if the float switch is not reset even after the 5 minutes operation 5 seconds stop 5 minutes operation cycle ends operation continues until the switch is reset 9 1 4 When the Float Switch is Tripped and AF is Displayed on the Remote Contr
58. Enters inspection mode from normal status when the INSPECTION TEST button is pressed 1 Press INSPECTION TEST button S If no button is pressed for 1 minute equipment returns to normal status 3 When MODE selector Press button is pressed or MODE no button is pressed selector for 1 minute equipment button returns to normal status If no button is pressed for 1 minute equipment returns to normal status 5 Press MODE selector button 5 008 Troubleshooting 143 Troubleshooting by Remote Controller SiUS30 604 1 4 Operation of the Remote Controller s Inspection Test Operation Button Unit 0 Malfunction code LO Inspection Normal display No display Malfunction code blinks when a malfunction occurs Y Inspection test Push the button operation Y Unit 0 071 Example of capacity code display Malfunction code 10 07 1 Capacity code Inspection Indoor unit system code Example model Display inspection mods C Indoor unit type code i J Progressioncode Ng on Y Inspection test Push the button operation Indoor unit system code Display Product classification System classification Y
59. LED1 LED2 LEDS LED4 LED5 LED6 LED7 LED1 LED2 LED3 LED4 LED5 LED6 LED7 UO 9 e 9 e e 9 9 e e 9 U1 9 e U2 9 9 e 9 9 U3 9 9 9 9 04 9 e e 9 e U7 9 e 9 9 9 9 U9 9 9 9 9 O 9 9 e 9 9 UH 9 9 e 9 9 9 UJ 9 9 9 9 9 UF 9 9 9 9 9 9 O ON O ON BONG ARE H Malfunction code 1st N Malfunction code 2nd Blink digit display section 9 Blink digit display section e e e OFF OFF Slave ocation Slave 2 Q Troubleshooting 153 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 Troubleshooting by Indication on the Remote Controller 2 1 AC Indoor Unit Error of External Protection Device Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting All indoor unit models Detect open or short circuit between external input terminals in indoor unit When an open circuit occurs between external input terminals with the remote controller set to external ON OFF terminal m Actuation of external protection device m improper field set m Defect of i
60. SECOND CODE NO FIRST CODE NO V2770 1 When in the normal mode push the 5 button for 4 seconds or more and operation then enters the field set mode Select the desired mode No with the button Pushing the 4 button select the first code No Pushing the button select the second code No Push the timer Cy button and check the settings Push the 5 button to return to the normal mode oar wh Example When setting the filter sign time to Filter Dirtiness High in all group unit setting set the Mode No to 10 Mode setting No to 0 and setting position No to 02 100 Test Operation SiUS30 604 Field Setting 3 1 3 Simplified Remote Controller BRC2A71 SH BE V1405 Group No setting by simplified remote controller Remove the cover of remote controller While in normal mode press the BS6 BUTTON field set to enter the FIELD SET MODE Select the mode No 00 with BS2 BUTTON temperature setting A and BS3 BUTTON temperature setting Y Select the group No with BS9 BUTTON set A and BS10 BUTTON set B Group Nos increase in the order of 1 00 1 01 1 15 2 00 4 15 However the unified ON OFF controller displays only group No set within the range of control Press BS7 BUTTON set cancel to set group No Press BS6 BUTTON field set to return to the NORMAL MODE Test Operation 101
61. lt Selection of setting item gt Push the SET button BS2 and set the LED display to a setting item Refer P 122 for Monitor mode lt Confirmation of malfunction 1 gt Push the RETURN button BS3 once to display First digit of malfunction code lt Confirmation of malfunction 2 gt Push the SET button BS2 once to display Second digit of malfunction code lt Confirmation of malfunction 3 gt Push the SET button BS2 once to display master or slave1 or slave2 and malfunction location Push the RETURN button BS3 and switches to the initial status of Monitor mode Push the MODE button BS1 and returns to Setting mode 1 Detail description on next page Contents of malfunction Malfunction code Abnormal discharge pressure HPS activated Abnormal suction pressure Abnormal Pe E4 Compressor lock Detection of INV compressor lock E5 Over load over current abnormal lock of Instantaneous over current of DC fan motor E7 outdoor unit fan motor Detection of DC fan motor lock Malfunction of electronic expansion valve E9 EV3 Abnormal position signal of outside unit fan motor Abnormal position signal of DC fan motor H7 Faulty sensor of outside air temperature Faulty Ta sensor H9 Abnormalit
62. plug Electronic i expansion valve expansion valve r gt expansion valve m e Heat uw Filter fi ON Heat uw t a F e i H T 27 Water Water Water A inlet z inlet inlet 1 2 i ES expansion valve 85 Plate heat 85 Plate heat Plate heat Lord ee a i 58 control exchanger 28 exchanger exchanger lenoid valve 69 Check valve Electronic 6 ect valve Electronic heck valve Electronic Indoor unit Thermostat ON expansion valve expansion valve expansion valve Solenoid valve i Solenoid valve i Solenoid valve 1 Capillary 1 Capillary 1 Capillary valve Check valve Check valve zd 4 Water Water Water Bs unit ndoor unit Service Service Service outle outle 0 outle mu NE I port N mt Ne r i Pressure i Pressure i Pressure Heat exchanger I regulating Capillary regulating y Capillary regulating Capillary 3 c valve tube valve 2 tube valve tube 2 Filter Iter ilter Operation yy OFF Indoor unit Z operation pir our way valve pir our way valve EUN Four way valve ane Check valve Check valve Check valve I Electronic valve 1 valve valve t expansion valve KL NI c NI LE Imm Check valve I Filter lenol
63. unit PC board 7 2 112kQ YES gt Replace the indoor unit PC board V2786 2 Refer to thermistor resistance temperature characteristics table on P278 170 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 12 Indoor Unit Malfunction of Thermostat Sensor in Remote Controller Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Lu All indoor unit models Malfunction detection is carried out by temperature detected by remote controller air temperature thermistor Note1 When the remote controller air temperature thermistor becomes disconnected or shorted while the unit is running W Defect of remote controller thermistor Defect of remote controller PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn power supply OFF then power ON again Is CJ YES displayed on the remote gt Replace remote controller controller NO External factor other than equipment malfunction for example noise etc V2787 In case of remote controller thermistor malfunction unit is still operable by suction air thermistor on indoor unit 2 Refer to thermistor resistance temperature characteristics table on P
64. 1 YES gt Eliminate the causes hot gas bypass valve may not be opened Check it Restart operation after resetting operation The inverter compressor operates normally NO gt Replace the compressor Disconnect the connection between the compressor and the inverter and turn on power transistor check mode setting using Setting Mode 2 on the outside unit PCB Measure inverter output voltage Note Take measurements while frequency is stable Inverter output voltage among 3 phases is within 5V of power supply NO gt Replace the inverter PCB Replace the inverter compressor 1 Difference in pressure between high and low pressures before start up 2 The quality of the power transistor diode module can be assessed also by means of measurement of resistance between terminals page 281 282 178 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 17 Outside Unit Malfunction of Moving Part of Electronic Expansion Valve Y1E Y3E Remote Controller Display Applicable RWEYQ60 72 8AMTJU Models Method of Check disconnection of connector Malfunction Check continuity of expansion valve coil Detection Malfunction Error is generated under no common power supply when the power is on Decision Conditions Supposed W Defect o
65. 4 Sound Level dBA 43 47 Safety Devices Fuse Fuse Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve Connectable outdoor unit R 410A Series R 410A Series Standard Accessories Operation Manual Installation Manual Installation Panel Pattern for Installation Insulation Tube Clamps Crews Operation Manual Installation Manual Installation Panel papar Pattern for Installation Insulation Tube Clamps Crews Drawing No C 3D046038A Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping length 25ft Horizontal Nominal heating capacities are based on the following conditions Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping length 25ft Horizontal 3 Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat 4 Anechoic chamber conversion value measured under JISB8616 conditions During actual operation these values are normally somewhat higher as a result of installation conditions Specifications 33 Specifications SiUS30 604 Floor Standing Type Model FXLQ12MVJU FXLQ18MVJU FXLQ24MVJU 1 Cooling Capacity Btu h 12 000 18 000 24 000 2 Heating Capacity Btu h 13 500 20 000 27 000 Casing Color
66. 9 8 Heater Control The heater control is conducted in the following manner Normal control While in heating operation the heater control ON OFF is conducted as shown on the right ON Set temperature OFF Overload control 3 6 F 3 6 F When the system is overloaded in heating operation the heater will be turned OFF in the following two manners 1 The heater control ON OFF is conducted through the liquid pipe OFF temperature R2T of the indoor unit 2 The heater control ON OFF is conducted by converting the ON 122 F heater temperature into the condensing pressure equivalent saturated temperature Tc according to the temperature detection through the high pressure sensor SINPH of the outside unit ON 109 4 F 122 F Liquid pipe temperature 140 F Condensing pressure equivalent saturated temperature OFF Fan residual operation While the heater turns OFF in order to prevent the activation of the thermal protector the fan conducts residual operation for a given period of time after the heater turns OFF This operation is conducted regardless of with or without heater equipped Residual operation time 100 seconds on ceiling suspended type or 60 seconds on other types 90 Function SiUS30 604 Outline of Control Indoor Unit 9 9 List of Swing Flap Operations Swing flaps operate as shown in table below
67. 991101181 d8 dl NOLLVZTUNSSIUd H3A13938 MVA 1003005 SEA AZV MOSN3S 1N3HM02 8U1SIS3HI S 709213603 nes AH3A0338 110 10N310S 52 90 40151534 ONILIWIT H0ISIS3H H div Ol Aocz 3sn4 NZ Nid diy 55 S D 10H 3ATVA QIONG10S SIAl dl 1109810 193130 TVSH3A3H 3SVHd M3IV3H 3sV2XNYMO JHII 1002 815 IMIYA NOTSNVAXG DNOU 114405 Wand ONTHOLING Sd 410 S T NOISNVdX3 9140819373 9811002 H3183ANT NVJ HOLONYZW 41W HO1129VdV 1 QIN 411 805539907 WOLOR JIN 13634 1531 135 3604 4115 TVNIRII WOIOY3U IN HOLIMS NOLIn8 HSnd G Sq 11910 011983007 dIMIS div 2413 M38 21L3NDW WELA ANI Quv08 1100812 31NIld 217 1081402 41815 TVNIMESI WIX SLA AVI3U OLL3NDWW NIYN 1109812 31NIHd 18 1 d3H T1 D jun 012108 8 310N IC 48055322 2wN011d0 80123135 LV3H 1002 24 14 400pu n 23 19 1 U IA 020 55 Ud g sum x lt x 23 1 4 2 8 lt 0 10 1 110 110 u0123135 1V3H 1009 6 07 SHIM 0 31 LN3NOdNO 4
68. Carries out the electronic expansion valve Y1E PI control to maintain the evaporator outlet superheated degree SH at constant during heating operation to make maximum use of the outside unit heat exchanger evaporator SH Ts Te SH Evaporator outlet superheated degree F Ts Suction pipe temperature detected by thermistor R2T F et Low pressure equivalent saturation temperature The optimum initial value of the evaporator outlet superheated degree is 41 F but varies depending on the discharge pipe superheated degree of inverter compressor Sub cooling Electronic Expansion Valve EV3 Control Cooling operation Makes PI control of the electronic expansion valve to keep the superheated degree of the outlet gas pipe on the evaporator side for the full use of the sub cooling heat exchanger Tsh Te SH Outlet superheated degree of evaporator F Tsh Suction pipe temperature detected with the thermistor R5T F Te Low pressure equivalent saturation temperature Heating operation To lower the discharge temperature when the discharge temperature is over 203 F makes PI control of the electronic expansion valve to keep the superheated degree of the outlet gas pipe on the evaporator side for the full use of the sub cooling heat exchanger When the discharge temperature is lower than 203 F EV3 opening is 0 pulse Tsh Te SH Outlet superheated degree of evaporator F Tsh
69. EMBEDDED HERMISTOR AIR GRN YLW r HERMISTOR COIL TRANSFORMER 208 230V 25 V TERMINAL BLOCK NOTES EM 1 TERMINAL BLOCK 9 9 D CONNECTOR TERMINAL ip FROM OUTSIDE 2 FIELD WIRING TRANSMI SS ON WIRING 3 IN CASE USING CENTRAL REMOTE CONTROLLER CONNECT IT TO SANTRAL REMOTE SDN EUNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL 4 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE FORCED OFF OR ON OFF Bom SIE X18A L L LL L CIR CONTROL OPERATION CAN SELECTED BY REMOTE CONTROLLER IN DETAILS ypy ep c ore Nota REFER TO THE INSTALLATION MANUAL ATTACHED TO THE UNIT wr JL 5 SYMBOLS SHOW AS FOLLOWS PNK PINK WHT WHITE YLW YELLOW wat RED D S ORG ORANGE BLU BLUE BLK BLACK RED RED BRN BROWN E oi E 711 WIRED RE 6 USE COPPER CONDUCTORS ONLY RED REMOTE CONTROLER ELECTRIC PARTS BOX 3D045644A 270 Appendix iagrams D iring w
70. Faulty suction air thermistor of indoor unit Decreased fan output Decreased fan airflow rate High air passage resistance Low water temperature at the water heat exchanger inlet In heating Less circulation refrigerant L Dirty water heat exchanger Abnormal piping length High pipe asistance Bent or Crush of pipe Clogging of foreign particles Stop valve closed 1 Moisture choke Dirty filter Is the air filter clogged Obstacle lt Is there any obstacle in the air passage lt Is the water temperature at the water heat exchanger inlet not less than 50 F lt 15 the water heat exchanger clogged lt Is the piping length in the permissible range Conduct visual checks for pipe conditions lt Is there any temperature difference around the filter or the branch pipe Check to be sure the stop valve is open Inadequate refrigerant quantity lt Refer to CHECK 6 page 254 lt Eliminate moisture by vacuum break For details of the compressor capacity control while in cooling refer to Compressor Control on page 65 The low pressure protection control includes low pressure drop control and hot gas bypass control details refer to page 71 outside unit heat exchanger For details refer to page 67 For In cooling the indoor un
71. Flare Connection 1 4 Flare Connection Piping Gas Pipes in 1 2 Flare Connection 91 2 Flare Connection 1 2 Flare Connection Connections SEE VP13 VP13 VP13 in External Dia 11 16 Internal Dia 1 2 External Dia 11 16 Internal Dia 1 2 External Dia 11 16 Internal Dia 1 2 Machine Weight Mass Lbs 25 25 25 4 Sound Level dBA 36 37 38 Safety Devices Fuse Fuse Fuse Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve Connectable outdoor unit R 410A Series R 410A Series R 410A Series Standard Accessories Operation Manual Installation Manual Installation Panel Paper Pattern for Installation Insulation Tube Clamps Screws Operation Manual Installation Manual Installation Panel Paper Pattern for Installation Insulation Tube Clamps Screws Operation Manual Installation Manual Installation Panel Paper Pattern for Installation Insulation Tube Clamps Screws Drawing No C 3D046038A Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping length 25ft Horizontal Nominal heating capacities are based on the following conditions Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping length 25ft Horizontal Capacities are net including a deduction for cooli
72. HP setting Horse power 60 72 84 DS2 3 DS2 2 OFF DS2 3 ON DS2 4 DS2 4 OFF 110 Test Operation SiUS30 604 Field Setting Setting by pushbutton switches The following settings are made by pushbutton switches on PC board In case of multi outside unit system various items should be set with the master unit Setting with the slave unit is disabled The master unit and slave unit can be discriminated with the LED indication as shown below H1P H2P H3P 5 H6P H7P H8P Master unit O Slave unit 1 e e e e e e e 9 Slave unit 2 e Factory setting BS1 BS2 BS3 BS4 BS5 MODE SET RETURN TEST RESET V2760 There are the following three setting modes Setting mode 1 H1P off Initial status when normal Used to select the cool heat setting Also indicates during abnormal low noise control and demand control Setting mode 2 H1P on Used to modify the operating status and to set program addresses etc Usually used in servicing the system Monitor mode H1P blinks Used to check the program made in Setting mode 2 m Mode changing procedure Using the MODE button the modes can be changed as follows Push and hold the BS1 Normal Push the BS
73. KHRP25M33T KHRP25M22T KHRP25M33T KHRP25MT2TU KHRP25M22T KHRP25M33T KHRP25M72TU KHRP25M73TU Su Joint KHRP26M22T KHRP26M33T KHRP26M22T KHRP26M33T KHRP26MT2TU KHRP26M22T KHRP26M33T KHRP26M72TU KHRP26MT3TU A e Outside unit multi BHFP22MA56U BHFP22MA84U connection piping kit BHFP26MA56U BHFP26MA84U Extermal control adaptor DTA104A62 NOTE 1 Refer to the latest drawing 2 In the case of heat recovery system COOL HEAT Selector cannot be connected 3D055420 276 Appendix SiUS30 604 Option List Optional Accessories of Operation Control System Type T No FXFQ MVJU FXsa MvJU FXMQ MVJU rxaa MvJu EXLO MVJU FXDQ MVJU Item Wireless BRC7C812 BRC4C82 BRC7E818 m BRC7E83 4 82 1 Remote controller BRC1C71 Wired BRC1D71 2 Set back time clock BRC15A71 3 Remote sensor KRCS01 1 4 Installation box for adaptor PCB KRP1B98 KRP1C93 KRP1B101 5 Central remote controller DCS302C71 5 1 Electrical box KJB311A 6 Unified on off controller DCS301C71 6 1 Electrical box KJB212A 7 Schedule timer DST301B61 8 External control adaptor for outdoor unit DTA104A62 DTA104A61 DTA104A61 DTA104A62 XDTA104A53 9 D3 NET Expander adaptor DTA109A51 10 Simplified remote controller BRC2A71 BRC2A71 BRC2A71
74. Malfunction of Swing Flap Motor MA Remote Al Controller Display Applicable FXHQ only Models Method of Utilizes ON OFF of the limit switch when the motor turns Malfunction Detection Malfunction When ON OFF of the microswitch for positioning cannot be reversed even though the swing flap Decision motor is energized for a specified amount of time about 30 seconds Conditions Supposed m Defect of swing motor Causes W Defect of connection cable power supply and limit switch m Defect of air flow direction adjusting flap cam W Defect of indoor unit PC board 162 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred s power supply NO 208 230V provided YES Indoor unit gt Provide 208 230V power supply is a model equipped NO with a swing flap function The swing motor works when the power supply is turned off and then back After turning the swing flap ON and then stopping with the remote controller the voltage of X6A of the indoor The connector is connected to X9A of the indoor unit PC board The limit switch functions normally The connecting cable is short circuited or disconnected gt Replace indoor unit PC board Connect the
75. Service Electronic DX Solenoid valve Capillary tube Service port i Capillary Capillary Four way valve tube tube Solenoid valve X Fur way valve ZA check valve strainer separatir Solenoid valve SVSL Heat exchanger pipe lt Filter Solenoid valve Gauge port TNI VAS connection Solenoid valve 7 7 7 rite fusible plug Electronic expansion valve 69 e Water inlet 9 Pq Plate heat Solenoid valve exchanger capillary tube oa n Water Service port i Capillary Capillary Four way valve tube 2 LoT R Solenoid valve Four way valve T Check valve ZZ Check valve trainer z Gauge port _ 1 4 flare connection NH Bewen High pressure Sensor HPS High pressure switch Capillary tube 3 Low pressure cause port Compressor Compressor sensor JV flare connection TNV stop p NHS HPS a Compressor 2 Gauge port so JV flare connection 2 50 Refrigerant Circuit SiUS30 604 Refrigerant Flow for Each Operation Mode C Heating and simultaneous cooling heating operation mode When the outdoor water cooled heat exchangers are used as condenser and evap
76. Thermostat ON Indoor unit 4 p Fan ally be Check valve Solenoid valve Tore er expansion valve Fi Filter Indoor unit Thermostat OFF 1 Electronic 1 1 Gee Electronic expansion valve Indoor unit Thermostat ON Indoor unit operation Outside unit 1 Outside unit 2 Outside unit 3 High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure liquid or gas Solenoid valve amp riter j ager pipe M Heat exchal lie Fusible plug control Heat exchanger Sub cooling Electronic Check valve N valve Solem valve Check valve Pressure regulating valve Filter 5 ZZ Check valve Filter Capillary 6 Solenoid a valve Low pressure port sensor JU flare connection Filter Electronic expansion va capillary tube Serv port Four way valve Nt Compressor Ive Solenoid valve ice Gauge port flare connection HPS Water inlet Plate heat exchanger Lee d Water outlet High pressure sensor High pressur
77. Troubleshooting 239 Troubleshooting OP Schedule Timer SiUS30 604 4 4 fia Improper Combination of Optional Controllers for Centralized Control Remote ng Controller Display Applicable Schedule timer Models Method of Detect the malfunction according to DIII NET transmission data Malfunction Detection Malfunction When the schedule timer is set to individual use mode other central component is present Decision When multiple master controller are present Conditions Supposed Improper combination of optional controllers for centralized control Causes m More than one master controller is connected W Defect of PC board of optional controller for centralized control 240 Troubleshooting SiUS30 604 Troubleshooting OP Schedule Timer Troubleshooting adaptor for electrical Is the schedule timer connected Be sure to turn off power switch before connect or disconnect connector A Caution or parts damage may be occurred Is the wiring YES Cannot be used in combination with a wiring adaptor for electrical appendices connected YES NO Is a parallel interface connected Is the schedule timer s individual combined connector connected more optional controllers for centralized control YES 5 gt appendices Remove the wiring adaptor for electrical appendices and reset the pow
78. _ P SiUS30 604 n 410A Service Manual FY WII Water Cooled Inverter Series Heat Pump Heat Recovery 60Hz SiUS30 604 27927 Water Cooled Inverter Series Te sista ict u ua ince ict bua vii 1 1 Safety Cautions nr vii 1 2 Part 1 General Information EIL aa 2 Design 3 1 2 Easy installation EDT 5 1 3 Energy mm 6 1 4 Enhanced usability mM 7 15 lo Em 8 2 Model PINE a diee EE 9 2 1 Water Cooled System 9 3 External ApD8ara n0B8 u u 10 3 1 Indoor IS c 10 O tside Units 11 4 Combination of Outside Units 12 5 Coba iy iqi u uu u uuu 2 sms m 13 Part 2 Specifications 15 u u ua IRURE NIE 16 1 1 Outside Units eter u etse O re roger ecce Eg us 16 12 SUI Em 23 1 3 til uu T 24 Part 3 Refrigerant Circuit
79. connected securely microcomputer YES monitor green on the inverter P C B is blinking gt Defect of outside unit main PC board or defect of inverter PC board The voltage between two pins of L1A L2A and L3A on the inverter unit is 208 230 V Replace inverter PC board When the LC malfunction occur again replace control PC board gt Check the noise filter Z1F for disconnection and check the power supply wiring of the inverter PC board V2815 202 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 34 P Outside Unit Inverter Over Ripple Protection Remote Pi Controller Display Applicable RWEYQ60 72 8AMTJU Models Method of Imbalance in supply voltage is detected in PC board Malfunction Detection Malfunction When the resistance value of thermistor becomes a value equivalent to open or short circuited Decision status Conditions m Malfunction is not decided while the unit operation is continued P1 will be displayed by pressing the inspection button Supposed Open phase Causes m Voltage imbalance between phases m Defect of main circuit capacitor m Defect of inverter PC board Defect of K1 K2 or K1R m improper main circuit wiring Troubleshooting 203 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect
80. gt Refer to failure diagnosis for UA malfunction code other units within the same refrigerant system The A9 display blinks on the remote controllers of NYES gt Refer to failure diagnosis for 1 malfunction code other units within the same refrigerant system display blinks on the remote controllers of other units within the same refrigerant system YES gt Refer to failure diagnosis for A9 malfunction code Refer to failure diagnosis for U4 malfunction code gt Refer to failure diagnosis for U5 malfunction code V2826 220 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 46 UA Indoor amp Outside Units and Remote Controller Combination Failure Remote uA Controller Display Applicable All models of indoor unit Models RWEYQ60 72 84MTJU Method of Detect abnormalities in combination of indoor and outside units and the remote controller using the Malfunction outside unit PCB Detection Malfunction When any of the followings is detected failure is instantly confirmed Decision m When there is a problem in the combination of the indoor and outside units Conditions m When there is a problem in the combination of the indoor unit and the remote controller Supposed W Excess of connected indoor units Causes W Defect of outside unit PC board A1P m Mismatching of the refrigerant typ
81. higher as a result of ambient conditions Nominal heating capacities are based on the following conditions Anechoic chamber conversion value measured under JISB8616 conditions During actual operation these values are normally somewhat Specifications 31 Specifications SiUS30 604 Wall Mounted Type Model FXAQ07MVJU FXAQ09MVJU FXAQ12MVJU 1 Cooling Capacity Btu h 7 500 9 500 12 000 2 Heating Capacity Btu h 8 500 10 500 13 500 Casing Color White 3 0Y8 5 0 5 White 3 0Y8 5 0 5 White 3 0Y8 5 0 5 Dimensions HxWxD in 11 3 8x31 1 4x9 11 3 8x31 1 4x9 11 3 8x31 1 4x9 Coil Cross RowsxStagesxFPI 2x14x17 2x14x17 2 14 17 Fin Coil Face Area ft 1 73 1 73 1 73 Model QCL9661M QCL9661M QCL9661M Type Cross Flow Fan Cross Flow Fan Cross Flow Fan Fan Motor Output HP 0 054 0 054 0 054 Air Flow Rate H L cfm 260 160 280 175 300 180 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Air Filter Resin Net Washable Resin Net Washable Resin Net Washable Liquid Pipes in 1 4 Flare Connection 1 4
82. 1 1 Indoor temp 80 FDB 67 FWB inlet water temp 85 F outlet water temp 95 F Equivalent piping length 25ft level difference Oft Indoor temp 70 FDB 60 FWB inlet water temp 70 F Equivalent piping length 25ft level difference Oft 3 In the case of heat pump system suction gas pipe is not used 4 In the case of heat recovery system 5 In the case of heat pump system 2 This unit cannot be installed outdoors Install indoors Machine room etc 3 Hold ambient condition at 35 95 F 80 RH Heat rejection from the casing 0 64KW 4 There are some cases where capacity decreases depending on operating states Specifications 17 Specifications SiUS30 604 Model Name Combination Unit RWEYQ84MTJU 1 Cooling Capacity Btu h 84 000 2 Heating Capacity Btu h 94 500 Casing Color Ivory White 5Y7 5 1 Dimensions HxWxD in 39 3 8x30 3 4x21 11 16 Heat Exchanger Stainless Steel Plate Type Type Hermetically Sealed Scroll Type Piston Displacement rh 13 66 Comp Number of Revolutions r p m 6 450 Motor OuipubsNumber kW 40 Starting Method Soft Start Liquid Pipe in 3 8 in C1220T Flare Connection Suction Gas Pipe in 7 8 in C1220T Brazing Connection x3 Connecting Discharge Gas Pipe in x4 3 4 in C1220T x5 7 8 in C1220T Brazing Connection Pipes Water inlet 1 1 4 Female Thread Water outle
83. 11 5 Electronic Expansion Valve Refrigerator Oil Synthetic Ether Oil Standard Accessories Installation Manual Operation Manual Connection Pipes Clamps Strainer Conduit Mounting Plate Drawing No 4D054574C Notes 1 1 Indoor temp 80 FDB 67 FWB inlet water temp 85 F outlet water temp 95 F Equivalent piping length 25ft level difference Oft Indoor temp 70 FDB 60 FWB inlet water temp 70 F Equivalent piping length 25ft level difference Oft 3 In the case of heat pump system suction gas pipe is not used 4 In the case of heat recovery system 5 In the case of heat pump system 2 This unit cannot be installed outdoors Install indoors Machine room etc 3 Hold ambient condition at 35 95 F 80 RH Heat rejection from the casing 0 71kWx2 4 There are some cases where capacity decreases depending on operating states 20 Specifications SiUS30 604 Specifications Model Name Combination Unit RWEYQ216MTJU Model Name Combination Unit RWEYQ72MTJU RWEYQ72MTJU RWEYQ72MTJU 1 Cooling Capacity Btu h 216 000 x2 Heating Capacity Btu h 243 000 Casing Color Ivory White 5Y7 5 1 Dimensions HxWxD in 39 3 8x30 3 4x21 11 16 x3 Heat Exchanger Stainless Steel Plate Type Type Hermetically Sealed Scroll Type Piston Displacement m h 11 18x3 Comp Number of Revolutions r p m 5 280x3 M
84. 1104 9812 B BuisueinsseJd 19418991 q 140 1090477 19119 PQ lt O I sid o 2 uoisuedxe ET OAJDA KUM 1103 piis 1 91u0J129 3 2 ue4 Joopu NY an 2 AJEA APN 1103 am H IP 1091 5 i 311 914 ___ 2 Ne 181110 328 jun 13104 1085 aqn 0 pras bd nu 09 440 1 Joopul 1912 196004212 BALBA piQU3J0S ET SJ m sido uolsuedx 191 E 19104 L NOs ueg l I zu R 2 C A sebueyoxe wey se pinbi ainsseid jun episin eunyesodwe ubi p pieno NO 1 400pu I seb ainssaid 1oopul Jeuio 43 Refrigerant Circuit SiUS30 604 sun episjno 49410 uonoeuuoo edid edid uonong edid pinbr1 edid sef eBieuosiq 105531040 1155914 saa 108195 asnssasd 4614 Hana 101190000 2101 Jl 191110 2911195 aqn
85. 3 Hold ambient condition at 35 95 F 80 RH Heat rejection from the casing 0 64KW 4 There are some cases where capacity decreases depending on operating states 16 Specifications SiUS30 604 Specifications Model Name RWEYQ72MTJU 1 Cooling Capacity Btu h 72 000 Heating Capacity Btu h 81 000 Casing Color Ivory White 5Y7 5 1 Dimensions HxWxD in 39 3 8x30 3 4x21 11 16 Heat Exchanger Stainless Steel Plate Type Type Hermetically Sealed Scroll Type Piston Displacement m h 11 18 Comp Number of Revolutions r p m 5 280 Motor QutputxNumber kW 3 6 Starting Method Soft Start Liquid Pipe in 3 8 in C1220T Flare Connection Suction Gas Pipe in 3 4 in C1220T Brazing Connection x3 Connecting Discharge Gas Pipe in 4 5 8 in C1220T x5 3 4 in C1220T Brazing Connection Pipes Water inlet 1 1 4 Female Thread Water outlet 1 1 4 FPT Female Thread Drain outlet 1 2 FPS Female Thread Machine Weight Mass Lbs 330 Sound Level Reference Value dBA 50 Safety Devices High Pressure Switch Inverter Overload Protector Fusible Plugs Capacity Control 90 23 100 Refrigerant Name R 410A Refrigerant Charge Lbs 9 9 Control Electronic Expansion Valve Refrigerator Oil Synthetic Ether Oil Standard Accessories Installation Manual Operation Manual Connection Pipes Clamps Strainer Conduit Mounting Plate Drawing No 4D054571D Notes
86. 4 Press the SET button BS2 once 09000000 5 Press the RETURN button BS3 twice 6 Press the MODE button BS1 once To inhibit the slave unit 1 from operating Set setting mode 2 from No 39 to No 2 LED display O ON OFF H1P H7P Procedure 1 Press and hold the MODE button BS1 for 5 sec or 0900000 2 Press the SET button BS2 39 times oOooeeooo 3 Press the RETURN button 53 once Factory set 4 Press the SET button BS2 once 09000000 5 Press the RETURN button BS3 twice 6 Press the MODE button BS1 once 070000 inhibit the slave unit 2 from operating Set setting mode 2 from No 40 to No 2 LED display O ON OFF H1P H7P Procedure 1 Press and hold the MODE button BS1 for 5 sec or 2 Press the SET button 52 40 times O00000 3 Press the RETURN button BS3 once C eeee 0 Factory set 4 Press the SET button BS2 once O00000 5 Press the RETURN button BS3 twice 09000000 6 Press the MODE button BS1 once n the case of multi outside unit system when the above Inhibition of operation is set outside unit rotation is not functional n Notes Resetthe power supply during the outside unit is stopping to cancel the automatic backup operation forcibly 136 Test O
87. 41 180 82 2 26 183 84 2 12 187 86 1 99 190 88 1 87 194 90 1 76 198 92 1 65 201 94 1 55 205 96 1 46 208 98 1 38 Indoorunit For air suction R1T For liquid pipe R2T For gas pipe R3T Outdoor unit For outdoor air R1T For coil R2T For suction pipe R4T For Receiver gas pipe R5T T F TC 4 0 20 197 81 86 0 30 16 10 2 2 19 186 53 87 8 31 15 43 0 4 18 175 97 89 6 32 14 79 1 4 17 166 07 91 4 33 14 18 3 2 16 156 80 93 2 34 13 59 5 0 15 148 10 95 0 35 13 04 6 8 14 139 94 96 8 36 12 51 8 6 13 132 28 98 6 37 12 01 10 4 12 125 09 100 4 38 11 52 12 2 11 118 34 102 2 39 11 06 14 0 10 111 99 104 0 40 10 63 15 8 9 106 03 105 8 41 10 21 17 6 8 100 41 107 6 42 9 81 19 4 7 95 14 109 4 43 9 42 21 2 6 90 17 111 2 44 9 06 23 0 5 85 49 113 0 45 8 71 24 8 4 81 08 114 8 46 8 37 26 6 3 76 93 116 6 47 8 05 28 4 2 73 01 118 4 48 7 75 30 2 1 69 32 120 2 49 7 46 32 0 0 65 84 122 0 50 7 18 33 8 1 62 54 123 8 51 6 91 35 6 2 59 43 125 6 52 6 65 37 4 3 56 49 127 4 53 6 41 39 2 4 53 71 129 2 54 6 65 41 0 5 51 09 131 0 55 6 41 42 8 6 48 61 132 8 56 6 18 44 6 7 46 26 134 6 57 5 95 46 4 8 44 05 136 4 58 5 74 48 2 9 41 95 138 2 59 5 14 50 0 10 39 96 140 0 60 4 96 51 8 11 38 08 141 8 61 4 79 53 6 12 36 30 143 6 62 4 62 55 4 13 34 62 145 4 63 4 46 57 2 14 33 02 147 2 64 4 30 59 0 15 31 50 149 0 65 4 16 60 8 16 30 06 150 8 66 4 01 62 6 17 28 70 152 6 67 3 88 64 4 18 27 41 154 4 68 3 75 66 2 19 26 18 156 2 69 3
88. Automatic mode differential automatic 03 2 04 3 05 4 06 5 07 6 08 7 temperature differential setting for VRV system heat recovery series cool heat 5 Power failure automatic reset Notequipped p Notequpped _ Equipped 13 23 0 High air outlet velocity H S Set when installed in place with ceiling higher than 2 7 m 1 Selection of air flow direction F 4 directions T 3 directions W 2 directions Set when a blocking pad kit has been installed 3 Air flow direction adjustment Set at Equipped Not equipped installation of decoration panel 4 Field set air flow position setting Draft prevention Standard Ceiling Soiling prevention 5 Field set fan speed selection Standard Optional Optional fan speed control by air discharge accessory 1 accessory 2 outlet for phase control 15 25 1 Thermostat OFF excess humidity Not equipped Equipped 2 Direct duct connection Not equipped Equipped when the indoor unit and heat reclaim ventilation unit are connected by duct directly 6 3 Drain pump humidifier interlock selection Not equipped Equipped 5 Field set selection for individual Not equipped Equipped ventilation setting by remote controller 6 Field set selection for individual Not equipped Equipped ventilation setting by remote controller n Note 1 Settings are made simultaneously for the entire group however if you select the mode No inside parentheses you ca
89. Causes UE Schedule timer All models of indoor units Microcomputer checks if transmission between indoor unit and centralized controller is normal When transmission is not carried out normally for a certain amount of time m Malfunction of transmission between central remote controller and indoor unit Disconnection of connector for setting master controller or individual combined switching connector m Defect of schedule timer PC board m Defect of indoor unit PC board Troubleshooting 235 Troubleshooting OP Schedule Timer SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Has an indoor unit YES once connected been removed or its address gt power Supply ne changed simultaneously for all optiona controllers for centralized control the power supply turned on for indoor units displaying malfunction Turn indoor unit s power supply transmission wiring YES disconnected or wired incorrectly gt Fix the wiring correctly Is the group No of malfunctioning indoor units set transmission with al indoor units malfunctioning Set the group No correctly Replace indoor unit PC board the transmission wiring with the master controller disconnected or wired incorrectly YES gt Fix the wiring correctly
90. Control Group No Setting DER 106 Inverter Start up EON 200 Check Operation 96 Check Operation not executed 212 J Qiu 171 n 186 Compressor Motor Lock 177 J4 187 Contents of Control Modes 108 Ri hat etes eens 188 Cool Heat Mode Switching REMEDIES 120 Nr ERE de etn 189 Cool Heat Mode Switching In case of heating and JO Lini RE 190 simultaneous cooling heating operation JA Licitaciones eet eg 191 connection 119 193 L Discharge Pipe Protection Control 7 redd eee t etr aie 195 Display Under Host Computer Integrate Control iid iniecta aime qu 196 Blinks Repeats Double Blink 248 197 Display Under Host Computer Integrate Control EB eiii e OR EP 198 Blinks Repeats Single Blink TORRE ERROR 245 RE 200 Drain Level above Limit 166 Hore 201 Drain Pump Control oca 83 List of Electrical and Functional Parts 272 Indoor Unit unde 273 E Outside UME Uu e reete tede 272 MID 172 Louver Control for P
91. Controller SiUS30 604 2 7 AF Indoor Unit Drain Level above Limit Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting HF FXFQ FXSQ FXMQ FXDQ Water leakage is detected based on float switch ON OFF operation while the compressor is in non operation When the float switch changes from ON to OFF while the compressor is in non operation Humidifier unit optional accessory leaking W Defect of drain pipe upward slope etc Defect of indoor unit PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Field drain piping has a defect such as YES gt Modify the drain piping upward sloping NO A humidifier YES unit optional accessory gt Check if the humidifier unit is is installed on the indoor unit leaking NO gt Defect of indoor unit PC board V2782 166 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 8 Indoor Unit Malfunction of Capacity Determination Device Remote controller display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Ad All indoor unit models Capacity is determined according to resistance of the ca
92. Cooling operation 1 3 Protection control High pressure protection control 6 1 Low pressure protection control 6 2 Discharge pipe protection control 6 3 Inverter protection control 6 4 Refrigerant drift prevention 7 4 Thermostat OFF Determination Malfunction stop condition Cooling Heating mode change Oil return condition Malfunction stop 2 2 Outside unit rotation 8 1 Pressure equalization control 4 3 Oil return operation Cooling oil return operation 7 1 Heating oil return operation 7 1 ater heat exchanger oil return condition Water heat exchanger oil return operation 7 2 pages Figures in the parentheses indicate the description Nos of functional operation shown in the following 56 Function SiUS30 604 Function General 1 3 Normal Operation Actuator function Electrical Parts name Symbol i N heati ling symbol ormal heating or normal cooling Y Normal cooling heating simultaneous operation PI control High pressure protection PI control High pressure protection Low pressure protection Discharge Low pressure protection Discharge Compressor M1C pipe temperature protection control pipe temperature protection control Inverter protec
93. Differences Measurement is based on weight to prevent change of mixing ratio during charging 290 Precautions for New Refrigerant R 410A SiUS30 604 Precautions for New Refrigerant R 410A Regarding purchasing of service tools please contact following address Daikin U S Corporation Dallas Office 1645 Wallace Dr Ste 110 Carrollton TX 75006 Tel 1 972 245 1510 Fax 1 972 245 1038 Precautions for New Refrigerant R 410A 291 Precautions for New Refrigerant R 410A SiUS30 604 292 Precautions for New Refrigerant R 410A SiUS39 601 Index A Error of External Protection Device 154 uri catt s edite tisse teeth terree 154 DIR DELE 155 F je ate DNO NK 156 debutant tue ed cbe 181 158 159 eit d a qaqan usa simu 182 m MU RN ROME 162 Fan Motor M1F Lock Overload 158 pop LE TIER IRA 164 Faulty Field Setting after Replacing Main PC Board or Abnormal Discharge Pipe Temperature 181 Faulty Combination of PC Board 206 Abnormal Indoor Fan Motor 159 Field Setting 99 About Refrigerant R 410A 284 Field Setti
94. F1U 250V 5A 5 2 Transformer 25 25 0 Parts Name Symbol Remark 30MVJU 36MVJU 48MVJU Wired Remote Remote Controller BRC1G71 Option Controller Wireless Remote BRC4C82 Controller 16160W 16270W 16430W Fan Motor M1F Motors Thermal protector 275 F OFF 188 6 F ON Capacitor for Fan Motor 6uF 450V 9uF 450V 8uF 450V ST8601A 5 4 11000 Thermistor Suction Air R1T 20kQ 77 F Thermistor for Heat ST8605A 4 8 1800 Thermistors Exchanger High Temp 20 77 F Thermistor Heat R2T ST8602A 4 06 L800 Exchanger 20kQ 77 F Float switch S1L FS 0211 Others Fuse F1U 250V 5A 5 2 250V 10A 5 2 Transformer 25 25 0 Parts Name Symbol FXHQ FXHQ FXHQ Remark 12MVJU 24MVJU 36MVJU Wired Remote Remote Controller BRC1C71 Option Controller Wireless Controller BRC7E83 1063 10130 Fan Motor Thermal protector 266 OFF 176 ON Motors Capacitor for Fan 3 0uF 450V 9 0uF 450V MT8 L 3P058751 1 Swing Motor M1S AC200 240V ST8601A 1 4 1250 Thermistor Suction Air R1T 20kQ 77 F Thermistor for Heat ST8605 6 8 L 1250 ST8605 6 8 L 1250 Thermistors Exchanger High Temp 20kQ 77 F 20kQ 77 F Thermistor Heat ROT ST8602A 6 6 L 1250 ST8602A 6 6 L 1250 Exchanger 20kQ 77 F 20kQ 77 F Fuse F1U 250V 5A Others Transformer TR25H25RO 274 Appendix
95. Heat pump type VRV WII c Water piping Refrigerant piping Level difference between the VRV WII units up to 6 5 ft Level difference between the VRV WII and indoor units Up to 164 ft if the VRV WII is above Up to 130 ft if the VRV WII is below gt Actual piping length Actual length up to outside unit after piping branch up to 130 ft branch piping up to 33 ft Equivalent length up to outside unit branch piping up to 43 ft REFNET Joint Level difference between indoor units Actual piping length between the VRV WII and up to 49 ft indoor units up to 390 ft e Equivalent piping length between the VRV WII and indoor units up to 459 ft Total piping length between the VRV WII and indoor units up to 980 ft 4 General Information SiUS30 604 Features 1 2 Easy installation Compact and lightweight Adoption of a new water heat exchanger and optimization of the refrigerant control circuit has resulted in the Industry s most compact and lightweight equipment A weight of 0 15 ton and height of 39 3 8 inch make installation possible in buildings with limited space or where no space is available for outside units This makes the system ideal for places that have no area outside such as underground malls Stacked configuration is also possible further contributing to space savings n Unit is designed for indoor installation only
96. In Type Model FXSQ12MVJU FXSQ18MVJU FXSQ24MVJU 1 Cooling Capacity Btu h 12 000 18 000 24 000 Heating Capacity Btu h 13 500 20 000 27 000 Casing Color Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Dimensions HxWxD in 11 7 8x21 5 8x 31 1 2 11 7 8x27 1 2x 31 1 2 11 7 8x 39 3 8 x 31 1 2 Coil Cross RowsxStagesxFPI 3x14x14 3x14x14 3x14x14 Fin Coil Face Area ft 0 95 142 2 38 Model D18H3A D18H2A 2D18H2A Type Sirocco Fan Sirocco Fan Sirocco Fan Motor Output HP 0 07 0 11 0 17 Fan Air Flow Rate H L cfm 340 230 530 390 740 490 Static Pressure 0 37 0 19 0 06 0 38 0 19 0 06 0 51 0 29 0 06 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Glass Fiber Glass Fiber Glass Fiber Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mold Resistant Liquid Pipes in 1 4 Flare Connection 1 4 Flare Connection 3 8 Flare Connection Piping Gas Pipes in 1 2 Flare Connection 1 2 Flare Connection 95 8 Flare Connection Gonnectons ales zt I 7 25 7 VP25 7 25 rain External Dia 1 1 4 Internal Dia 1 External Dia 1 1 4 I
97. Inverter cooling fan M1 2F OFF OFF 4 way valve Main 2081 Y5S Holding Holding 4 way valve for heat exchanger 2052 75 Holding Holding be heat exchanger electronic exp EV1 Y1E 0 pulse 0 pulse Sub cooling electronic exp valve EV3 Y3E 0 pulse 0 pulse Hot gas bypass solenoid valve SVP Y1S OFF OFF Water heat exch oil return solenoid valve SVE Y2S OFF OFF Receiver gas charging solenoid valve SVL Y3S ON OFF Receiver gas discharge solenoid valve SVG Y4S OFF OFF Non operation unit liquid pipe stop solenoid valve SVSL Y6S OFF ON To Mode B when No gas To Mode A when gas Mode transition conditions shortage signal is sent shortage signal is sent from indoor unit from indoor unit Ending conditions Slave units are required to operate Master Slave In order to protect compressors if any of the following items has an abnormal value the system will make stop with thermostat OFF and the malfunction will be determined according to the number of retry times abnormal Item Judgement value Retry number Malfunction code 1 Low pressure abnormal 10 1psi 3 times in 60 minutes 4 2 High pressure abnormal 537psi 2 times in 30 minutes 3 Discharge temperature o i i i abnormal 275 F 2 times in 100 minutes F3 4 Power supply abnormal Reverse phase No retry U1 17A for 5 sec 380V power supply 5 Inverter current abnormal 25 1A for 260 sec 220V power supply 3 times in 60 m
98. OFF controller displays only the group No within the range selected by the switch for setting each address Push the timer button to define the selected group No Push the button to return to the normal mode 9 1 2 0 R E Xe amp D Cy 51095 Even if not using a remote controller connect the remote controller when setting the group No set the group No for centralized control and disconnect after making the setting Set the group No after turning on the power supply for the central remote controller unified ON OFF controller and indoor unit 106 Test Operation SiUS30 604 Field Setting BRC7C Type BRCAC Type BRC7E Type Example Group No setting by wireless remote controller for centralized control When in the normal mode push 5 button for 4 seconds or more and operation then enters the field set mode Set mode No 00 with button Set the group No for each group with 4 V button advance backward Enter the selected group numbers by pushing button Push button and return to the normal mode RC7C MODE NO FIELD SET MODE 3
99. Refrigerant recovery Refrigerant recovery OFF OK E E E E mode selling Refrigerant recovery ON ceeeece OFF ys O O O O 5 x Test Operation 115 Field Setting SiUS30 604 Setting item display No w TEST C H selection low hoise Demand Setting condition display Setting item H1P H2P IND Master Slave H6P H7P H3P H4P H5P x Factory set Power transistor OFF 28 check mode e e ON 0 0000 60 OR E E E E KO 30 Demand setting 1 O O O O O 70 demand OE E E E JOR 80 demand 090070 Continuous d d Nee 32 setting us deman ON operation OFF OR E E E E Master unit with 38 multi outside unit O O e system is inhibited to Master unit operation operate Inhibited ox EEE Ren Emergency operation OFF ox E E E E JO Slave unit 1 with 39 multi outside unit O si T T system is inhibited to ave unit 1 operation Spares Inhibited operation OFF Oe eeeeo Slave unit 2 with 40 multi outside unit si ita i system is inhibited to ave unit 2 operation Fibra Inhibited 116 Test Operation
100. Replacing Main PC Board or Faulty Combination of PC Board Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting PU RWEYQ60 72 84MTJU The faulty or no field setting after replacing main PC board or faulty PC board combination is detected through communications with the inverter Whether or not the field setting or the type of the PC board is correct through the communication date is judged m Faulty or no field setting after replacing main PC board m Mismatching of type of PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Has the PC board been replaced When replacing the main PC board were field NO gt Correct the field setting properly settings made YES Is the t f 2 PC board correct NO gt Replace with a correct PC board YES gt Reset and then restart Note Type of PC board mismatching includes Main PC board Inverter PC board for compressor Fan driver PC board 206 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 37 Ud Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure Remote Controller Display Applicable Models Method of Malfunction Detection Malf
101. Resistance Temperature Characteristics 278 6 2 Pressure SOLD SOE u u luu u RARE ERI BRE eec 280 7 Method of Replacing the Inverter s Power Transistors and POS OC SS I 281 7 1 Method of Replacing the Inverters Power Transistors and Diode Modules 281 Appendix 259 Piping Diagrams SiUS30 604 1 Piping Diagrams 1 1 Outside Units RWEYQ60MTJU RWEYQ72MTJU RWEYQ84MTJU Solenoid valve Filter Fusible a Zm plug Electronic Heat exchanger pipe ti ert pd ter ZZ gt H LO i Water inlet z gt Plate heat 52 Solenoid valve exchanger I Gp Check valve Electronic expansion valve Solenoid valve I Water outlet Pressure regulating valve Ee Filter tour way valve Check valve Be Strainer Gauge port flare connection separator 011 SENPH High pressure Sensor HPS High pressure switch Capillary tube LOW pressure sensor Compressor SA IS valve With service port on on site piping side 5 1611 flare connection 4D055410 260 Appendix Gauge port 14 flare c
102. SHOW AS FOLLOWS PNK PINK WHT WHITE YLW YELLOW GRY GRAY ORG ORANGE BLU BLUE BLK BLACK RED RED BRN BROWN WHT Y M ORG BRN 7 USE COPPER CONDUCTORS ONLY e lt tesa ORC m 3D043177A FXMQ30M 36M 48MVJU INDOOR UNIT RIT THERMI STOR COI L CIRCUIT BOARD S1L SWITCH A2P TERMINAL BOARD T 1R TRANSFORMERI208 230V 22V C1 1 TERMINAL BLOCKIPOWER FUSE 5A 250V X2M TERMINAL BLOCKICONTROL 30TYPE ELECTRONIC FUSE B 10A 250V EXPANSION VALVE 36 48TYPE WIRED REMOTE CONTROLLER LIGHT EMITTING DIODE 551 SELECTOR SWITCH SERVICE MONI TOR GREEN IN SUB KIR K3R MAGNETIC RELAY M1F 1 THERMISTOR AIR M1F_ MOTORIINDOOR FAN CONNECTOR FOR OPTIONAL PARTS THERMO SWITCH X18A CONNECTORWIRING ADAPTOR EMBEDDED FOR ELECTORICAL APPENDICES _ THERMISTORIAIR POWER SUPPLY 208 230 N N 60Hz CONTROL BOX yiga He 2 RIT R2T RST MP 87 le XIM XM
103. Set the switch for setting each address correctly and simultaneously reset the power supply for all optional controllers 15 the transmission YES wiring disconnected or gt Fixthe wiring correctly wired incorrectly NO Replace the PC board of the unified ON OFF controller V2844 248 Troubleshooting SiUS30 604 Troubleshooting OP Unified ON OFF Coniroller CHECK 1 Check for causes of rise in high pressure Referring to the Fault Tree Analysis FTA shown below identify the faulty points Stop valve closed Local High pipe Bent and Crush of r pressure pipe rise resistance Clogging of foreign particles In cooling If the outside unit amp l amp ctronic rauty outside Faulty valve coil expansion valve is throttled EXPANSION VANE a Faulty valve body A temperature difference in el do pus 1 excess of 10 C between the inlet and Rise in high the outlet is deemed to be abnormal r Faulty high pressure sensor pressure Faulty control L Faulty control PCB Faulty high Soar Faulty indoor Faulty valve coil comto unit electronic expansion valve Faulty valve body Faulty high pressure sensor In heating Faulty Faulty indoor unit If the indoor unit control liquid pipe thermistor electronic
104. Thermal Fuse for Fan Motor Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve Connectable outdoor unit R 410A Series R 410A Series R 410A Series Standard Accessories Operation Manual Installation Manual Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Operation Manual Installation Manual Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Operation Manual Installation Manual Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Drawing No C 3D042685 Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping length 25ft Horizontal 2 Nominal heating capacities are based on the following conditions Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping length 25ft Horizontal 3 Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat 4 External static pressure is changeable to change over the connectors inside electrical box this pressure means High static pressure Standard 5 Air filter is not standard accessory but please mount it in the duct system of the suction side Select its colorimetric method gravity method 50 or mo
105. Use of the external control adapter for outside unit is not required 1 While in Setting mode 2 make setting of the set item No 32 Setting of normal demand to ON 2 While in Setting mode 2 select the set item No 30 Setting of Demand 1 level and then set the setting condition to targeted mode 126 Test Operation SiUS30 604 Field Setting Image of operation in the case of Power consumption 4 Rated power consumpli n uu usss acc The power 80 of rated power consumption 70 of rated power consumption 60 of rated power consumption 40 of rated power consumption Forced thermostat OFF Fan operation Power consumption Rated power consumption 80 of rated power consumption 70 of rated power consumption 60 of rated power consumption 40 of rated power consumption Forced thermostat OFF Fan operation Image of operation in t Power consumption Rated power consumption 80 of rated power consumption 70 of rated power consumption 60 of rated power consumption 40 of rated power consumption Forced thermostat OFF Fan operation consumption during the demand level 1 instructing can be set with the Demand 1 level setting 70 of rated power consumption has been set at factory 7 Power consumption set by Demand 1 level setting V3081 Image of operation in the case of B
106. a e on oar 81 CHE a u u uuu 82 84 Sume Unit eec iet ettet 82 Outline ef Control Indoor Unit 83 83 9 2 Louver Control Tor Preventing Ceiling Dirt 85 9 3 Thermostat Sensor in Remote Controller 86 9 4 Thermostat Control While in Normal Operation 88 9 5 Thermostat Control in Dry Operation 88 9 6 Electronic expansion Valve Control a 89 9 7 Hot Start Control In Heating Operation Only 89 9 8 Heater COMO uu rr eicere rte deren n pe 90 9 9 List Of Swing Flap Operations a Ron Xe ei 91 9 10 uuu 92 Table of Contents SiUS30 604 Part 5 Test Operation 93 1 2 3 Test CODES aai u ose R UR Fund aiam he Rien m 94 11 Procedure and PR 94 Outside Unit PC Board Layout 98 Fig Selfi au u uuu asa NN BIG HK RUN ON DE 99 3 1 Field Setting from Remote 044404 12040 99 3 2 Field Setting from Outsid
107. a plant certification system S ISO ISO 14001 is the standard defined by the defined by the International Organization for 14001 International Organization for Standardization Standardization ISO relating to quality 8 ISO relating to environmental management assurance ISO 9001 certification covers 2 J Co systems Our group has been acknowledged by an quality assurance aspects related to the e internationally accredited compliance organisation ISO 1 design development manufacture NM as having an appropriate programme of 900 installation and supplementary service of AY environmental protection procedures and products manufactured at the plant EC99J2044 activities to meet the requirements of ISO 14001 JMI 0107 JQA 1452 Dealer DAIKIN AC AMERICAS INC 1645 Wallace Drive Suite 110 Carrollton 75006 info 9 daikinac com www daikinac com rights reserved eSpecifications designs and other content appearing in this brochure are current as of January 2007 but subject to change without notice SiUS30 604 This book is made of recycled paper Printed in U S A 01 2007 AK
108. and restart gt Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor V2814 Higher voltage than actual is displayed when the inverter output voltage is checked by tester 200 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 33 LC Outside Unit Malfunction of Transmission between Inverter and Control PC Board Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes LL RWEYQ60 72 84MTJU Check the communication state between inverter PC board and control PC board by micro computer When the correct communication is not conducted in certain period Malfunction of connection between the inverter PC board and outside unit control PC board Defect of outside unit control PC board transmission section Defect of inverter PC board Defect of noise filter External factor Noise etc Troubleshooting 201 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Are the connectors between the main NO PC board A1P gt Connect transmission wiring and and inverter PC board turn on again A2P
109. charging Troubleshooting 253 Troubleshooting OP Unified ON OFF Controller SiUS30 604 CHECK 6 Check for inadequate refrigerant quantity In case of the VRV judgment must be made based on operation conditions in relation to pressure control and electronic expansion valve control Refer to the following criteria to make such decisions Diagnosis of inadequate refrigerant 1 The superheated degree of suction gas increases and temperature of compressor discharge gas rises 2 The superheated degree of suction gas increases and the electronic expansion valve slightly opens 3 With low pressure cooling capacity heating capacity is unavailable Cooling The open degree of the indoor unit electronic expansion valve increases High pressure Maintains a certain i level of low pressure Low pressure Low pressure rises due to large open degree of indoor unit electronic expansion valve Frequency slightly increases due to capacity control Frequency In order to maintain low pressure frequency Any one of electronic expansion valves opens fully 1 With low outdoor air cooling control fan is controlled in order to maintain high pressure Hunting in fact High pressure drops as compressor capacity decreases decreases due to capacity control The open degree of the outside unit Heating electronic expansion valve increases The outside unit electron
110. connector Caution or parts damage may be occurred Imbalance in supplied voltage is in excess of 10V 1 Open phase Open phase nase Normalize field cause gt Fix power supply voltage imbalance Part or wiring defect After turning the power supply YES OFF check and repair the gt main circuit wiring or parts 1 Loose or disconnected wiring between power supply and inverter 2 K1 K2 K1R contact NO lt When voltage monitoring is possible gt disposition fusion or contact is poor 3 Loose or disconnected Is the voltage imbalance applied to the inverter in excess of Using a device capable of OT constant recording of power noise filter SUPP y vonage x1 Measure voltage at the X1M power supply power supply voltage between 3 phases L1 L2 terminal block L2 L3 13 11 for about 2 Measure voltage at terminals L1A L2A and L3A one continuous week of the diode module inside the inverter while the compressor is running V Power supply voltage imbalance measure Vv Explanation for users accordance with notification of inspection results accompanying spare parts Give the user a copy of notification of inspection results and leave Be sure to explain to the user that it up to him to improve the imbalance there is a power supply imbalance for which DAIKIN is not responsible V2816
111. connector to X9A and turn on again Replace swing motor YES Replace the limit switch connecting cable unit PC board is 208 230V when turnedon again within 30 seconds of turning on again YES The connecting cable YES gt Replace indoor unit PC board has no continuity NO When the air flow direction flap s cam mechanism is disconnected gt Replace the power supply connecting cable from the swing motor operation is normal when turned on again Replace swing motor gt Take the cam mechanism apart reassemble and turn on again V2780 Troubleshooting 163 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 6 85 Indoor Unit Malfunction of Moving Part of Electronic Expansion Valve Y1E Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting AS All indoor unit models Detection by failure of signal for detecting number of turns to come from the fan motor When number of turns can t be detected even when output voltage to the fan is maximum m Malfunction of moving part of electronic expansion valve W Defect of indoor unit PC board m Defect of connecting cable N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurre
112. ee M L o Push the SET button and match with the LEDs No 1 15 push the RETURN button and enter the data for each setting Data such as addresses expressing are as follows 000 t 64 16 No 12 128 32 000 03900 4 1 13 8 2 See the preceding page and number of units is expressed as binary numbers the two ways of The No 1 cool heat unified address is expressed as a binary number consisting of the lower 6 digits 0 63 In the address is 010110 binary number which translates to 16 4 2 22 base 10 number In other words the address is 22 The number of terminal blocks for No 12 and 13 is expressed as an 8 digit binary number which is the combination of four upper and four lower digits for No 12 and 13 respectively 0 128 In the address for No 12 is 0101 the address for No 13 is 0110 and the combination of the two is 01010110 binary number which translates to 64 16 4 2 86 base 10 number In other words the number of terminal block is 86 for a list of data etc for No O 22 118 Test Operation SiUS30 604 Field Setting 3 2 2 Cool Heat Mode Switching In case of heating and simultaneous cooling heating operation connection Set Cool Heat Separately for Each BS Unit by Cool Heat Selector Set remote controller change over switch SS1 SS2 as following e Whe
113. etc gt Replace the indoor unit PC board V2777 Troubleshooting 155 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 3 8 Indoor Unit Malfunction of Drain Level Control System S1L Remote H3 Controller Display Applicable FXSQ FXMQ FXHQ FXAQ Models Method of By float switch OFF detection Malfunction Detection Malfunction When rise of water level is not a condition and the float switch goes OFF Decision Conditions Supposed m 208 230V power supply is not provided Causes Defect of float switch or short circuit connector m Defect of drain pump m Drain clogging upward slope etc m Defect of indoor unit PC board W Loose connection of connector 156 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller Troubleshooting Caution 15 power supply NO 208 230V provided YES The float Switch is connected to X8A of the indoor unit PC board or parts damage may be occurred A short circuit connector is connected to X8A Switch contact is forming a short circuit continuity check with X8A or X15A disconnected Becomes normal when X8A of the indoor unit PC board is short circuited The float switch Water builds u functions normally in the drain pan YES The drain pump is connected NO to X25A or terminals Y1 g
114. flowing in the power transistor When an excessive current flows in the power transistor Instantaneous overcurrent also causes activation m Defect of compressor coil disconnected defective insulation W Compressor start up malfunction mechanical lock Defect of inverter PC board Compressor inspection Caution The compressor s coil is disconnected or the insulation is defective Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred YES 7 Replace the compressor Disconnect the connection between the compressor and inverter Make the power transistor check mode setting ON by service mode Inverter output voltage Check Inverter output voltage is not balanced Normal if within 5V of power supply voltage Must be measured when frequency is stable Replace the inverter unit There is YES instantenious power drop NO Correct power supply Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor V2812 Higher voltage than actual is displayed when the inverter output voltage is checked by tester Troubleshooting 197 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 31 18 Outside Unit Inverter Current Abnormal Remote 18 Controller Display
115. for heat exchanger Symbol pore Water heat exchanger oil return control M1C 52 Hz 2082 Y7S OFF Main heat exchanger electronic expansion EV1 Y1E 300 pulse valve Sub cooling electronic expansion EV3 180 pulse valve Hot gas bypass SVP Y1S ON solenoid valve Water heat exch oil return solenoid valve SVE ON Receiver gas SVL OFF charging solenoid Receiver gas discharge solenoid SVG 45 valve Non operation unit liquid pipe stop SVSL 65 ON solenoid valve Indoor cooling unit fan Indoor cooling unit expansion valve m lt Indoor heating unit fan Indoor heating unit expansion valve Cooling Heating Y1E Normal control M1 2F Y1E Tharmostat on Normal control Tharmostat off Stop 500 pulse 35 m 20RH Y3S Normal control Ending condition 20RT Y1S Max 90 sec BEEER 78 Function SiUS30 604 Special Operation 7 3 Pump down Residual Operation Control If any liquid refrigerant remains in the heat exchanger during compressor startup the liquid refrigerant will enter the compressor resulting in the dilution of the refrigerating machine oil in the compressor and the degradation of lubricating capacity Therefore before the compressor stops pump down operation is performed to collect the refrigerant in the heat exchanger 7 3 1 Cooling Operation Mode
116. for hot gas bypass SVSL Y6S Solenoid valve for non operating unit liquid pipe closing Tc High pressure equivalent saturation temperature TcS Target temperature of Tc Condensing temperature Te EE Low pressure equivalent saturation temperature TeS Target temperature of Te Evaporating temperature Tfin Inverter fin temperature Ts R2T Suction pipe temperature detected by R2T Suction pipe Tsh R5T Temperature detected by R5T gas pipe temperature of sub cooling heat exchanger gas side outlet temperature Tp Calculated value of compressor port temperature Tdi R3T S temperature detected by thermistor located the inverter compressor discharge TI R6T Liquid pipe temperature Tg R4T The gas pipe temperature of water heat exchanger Function 55 Function General SiUS30 604 1 2 Operation Mode System stopping function 2 1 Startup control Cooling startup control 4 1 Heating startup control 4 2 Pressure equalization startup control 4 3 Restart standby 3 1 Clankcase heater control 3 2 Pump down residual operation 7 3 Normal operation Heating operation 1 3 Cooling Heating simultaneous operation 1 3 BS unit amp Indoor unit operation 1 4 Slave unit stopping function 2 1 Compressor control 5 1 Electronic expansion valve control 5 2 Heat exchanger mode control 5 3
117. heat source This alone makes it an ideal system solution for building refurbishment projects Prior consultation is necessary about the heat source equipment Contact your Daikin dealer for details co Water piping Refrigerant piping Cooling tower Closed type mm mmi Indoor installation pam mm mm Indoor installation VRV WII lt lt The system can tolerate water pressure up to 284 2psi General Information 3 Features SiUS30 604 Cold climate capability Because the system is water cooled the outside air temperature does not affect capacity Furthermore water cooling means no defrost operation is required so rapid starting assures quick and comfortable heating in the coldest conditions b General air cooled Total heating air conditioning system J capacity 100 80 60 Outside air gt temperature 14 7 12 6 10 5 9 5 85 70 50 3 0 00 30 50 Example only Long refrigerant piping length Within the refrigerant piping system up to 390 ft of actual piping length and 164 ft of height difference between the VRV WII and indoor units are possible Water piping does not enter occupied spaces so there is no worry of water leaking If the VRV WII is above indoor units 131 ft if the VRV WII is below indoor units Standard system
118. it can be used for piping work of every refrigerant cycle Offers high rust resistance and stability over long period of time Differences Can be used for R 410A and R 22 units Gauge manifold for R 410A Specifications High pressure gauge 15 to 770 psi 76 cmHg to 53 kg cm Low pressure gauge 15 to 550 psi 76 cmHg to 38 kg cm Precautions for New Refrigerant R 410A 289 Precautions for New Refrigerant R 410A SiUS30 604 1 4 2 5 16 2min gt 2 5 No oil is used in pressure test of gauges For prevention of contamination Temperature scale indicates the relationship between pressure and temperature in gas saturated state Differences Change in pressure Change in service port diameter Charge hose for R 410A Hose with ball valve Specifications Working pressure 737 psi 51 8 kg cm Rupture pressure 3685 psi 259 kg cm Available with and without hand operate valve that prevents refrigerant from outflow Differences Pressure proof hose Change in service port diameter Use of nylon coated material for HFC resistance Weigher for refrigerant charge Specifications High accuracy TA101A for 10 kg cylinder 2g TA101B for 20 kg cylinder 5g Equipped with pressure resistant sight glass to check liquid refrigerant charging A manifold with separate ports for HFCs and previous refrigerants is equipped as standard accessories
119. it is immediately after startup under drop control or other specific conditions The values above must be used only for reference purposes Even it is operated within the range above operation may be normal in other conditions Troubleshooting 251 Troubleshooting OP Unified ON OFF Controller SiUS30 604 CHECK 4 Check for causes of wet operation Referring to the Fault Tree Analysis FTA shown below identify the faulty points Dwelled refrigerant Faulty crankcase heater Frequent starts and stops of the compressor Excessive refrigerant charging Faulty indoor unit electronic expansion valve In cooling If the indoor unit electronic expansion valve excessively opened 1 Wet operation 1 2 3 lt Refer to CHECK 5 Faulty valve coil lt Are the coil resistance and insulation normal Faulty valve body Faulty gas pipe thermistor Is the connector properly connected of indoor unit propery Are the thermistor resistance characteristics Faulty control
120. of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting All models of indoor units schedule timer Detect the malfunction according to DIII NET transmission data When two or more schedule timers are connected m Address duplication of optional controller for centralized control N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Are two or more centralized controller YES gt Disconnect all centralized connected controller except one and reset the centralized controller timer s NO power supply gt Reset the power supply for the centralized controller V2840 242 Troubleshooting SiUS30 604 Troubleshooting OP Unified ON OFF Coniroller 5 Troubleshooting OP Unified ON OFF Controller 5 1 Operation Lamp Blinks Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Operation lamp blinks All models of indoor units Unified ON OFF controller Detect the malfunction according to DIII NET transmission data Malfunction of transmission between optional controller and indoor unit Connector for setting master controller is disconnected Defect of unified ON OFF controller Defect of indoor unit PC board Malfunction of air conditioner Troubleshooting 243 T
121. of the following five operation modes with temperature and operation mode setting by remote controller can be set and displayed by operation modes 0 through 19 ON OFF control impossible by remote controller Used when you want to turn ON OFF by central remote controller only Cannot be turned on off by remote controller OFF control only possible by remote controller Used when you want to turn on by central remote controller only and off by remote controller only Centralized Used when you want to turn on by central remote controller only and turn on off freely by remote controller during set time Individual Used when you want to turn ON OFF by both central remote controller and remote controller Timer operation possible by remote controller Used when you want to turn ON OFF by remote controller during set time and you do not want to start operation by central remote controller when time of system start is programmed 108 Test Operation SiUS30 604 Field Setting Selection of Control Mode Select whether to accept or to reject the operation from the remote controller regarding the operation stop temperature setting and operation mode setting respectively and determine the particular control mode from the rightmost column of the table below No Examp
122. on the following conditions Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping length 25ft Horizontal 3 Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat 4 External static pressure is changeable to change over the connectors inside electrical box this pressure means High static pressure Standard Low static pressure 5 Anechoic chamber conversion value measured under JISB8616 conditions During actual operation these values are normally somewhat higher as a result of installation conditions 28 Specifications SiUS30 604 Specifications Ceiling Mounted Built In Type Model FXSQ30MVJU FXSQ36MVJU FXSQ48MVJU 1 Cooling Capacity Btu h 30 000 36 000 48 000 x2 Heating Capacity Btu h 34 000 40 000 54 000 Casing Color Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Dimensions HxWxD in 11 7 8 55 1 8 x 31 1 2 11 7 8 55 1 8 x 31 1 2 11 7 8 55 1 8 31 1 2 Coil Cross RowsxStagesxFPI 3 14x14 3x 14 14 3 14 14 Fin Coil Face Area ft 3 64 3 64 3 64 Model 3D18H2A 3D18H2A 3D18H2A Type Sirocco Fan Sirocco Fan Sirocco Fan Motor Output HP 0 30 0 30 0 30 Fan Air Flow Rate H L cfm 950 720 990 740 1 300 950 0 57 0 39 0 57 0 35 0 34 0 10 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling an
123. operation 12 22 1 02 OFF Stop ON Operation 03 OFF The system stops then the applicable unit indicates 0 The other indoor units indicate 09 Fan Speed Changeover When Thermostat is OFF By setting to Set Fan Speed you can switch the fan speed to the set fan speed when the heating thermostat is OFF Since there is concern about draft if using fan speed up when thermostat is OFF you should take the setup location into consideration Setting Table Mode No First Code No Second Code No Setting 1 LL F 12 22 3 0 an Speed 02 Set Fan Speed Auto Restart after Power Failure Reset For the air conditioners with no setting for the function same as factory setting the units will be left in the stop condition when the power supply is reset automatically after power failure reset or the main power supply is turned on again after once turned off However for the air conditioners with the setting the units may start automatically after power failure reset or the main power supply turned on again return to the same operation condition as that of before power failure For the above reasons when the unit is set enabling to utilize Auto restart function after power failure reset utmost care should be paid for the occurrence of the following situation N Caution 1 The air conditioner starts operation suddenly after power failure reset or the
124. other places in this binder or in this manual where he she will find additional information on a specific topic SiUS30 604 Introduction 1 2 PREFACE Thank you for your continued patronage of Daikin products This is the new service manual for Daikin s water cooled VRV System Daikin offers a wide range of models to respond to building and office air conditioning needs We are confident that customers will be able to find the models that best suit their needs This service manual contains information regarding the servicing of water cooled VRV System January 2007 After Sales Service Division xi Introduction SiUS30 604 xii SiUS30 604 Part 1 General Information EE 2 SES M E 3 1 2 Easy installation a 5 1 35 Energy SAVING bdo ee Deb diea uit ud 6 1 4 Enhanced usability ttt nes an non dct 7 1 5 Outside urit toa oa et Padus 8 Model Na ME Si uiid nio u u ia Fox ate ecu bra rade ite auia 9 2 Water Cooled System oot i Ire e NR CR d Dr Lcx EXER edel ri Hed 9 10 3 1 Indoor Units 54 10 3 2 E dr RUNG E 11 Combination of Outside
125. outside unit connected the control wires F1 and F2 for the indoor unit should be designated as master unit The other outside unit not connected the control wires will be slave unit 1 When Turning On Power First Time The unit cannot be run for up to 12 minutes to automatically set the master power and address indoor outside unit address etc Status Outside unit Test lamp H2P Blinks Can also be set during operation described above Indoor unit If ON button is pushed during operation described above the UH malfunction indicator blinks Returns to normal when automatic setting is complete 2 When Turning On Power the Second Time and Subsequent Tap the RESET button on the outside unit PC board Operation becomes possible for about 2 minutes If you do not push the RESET button the unit cannot be run for up to 10 minutes to automatically set master power Status Outside unit Test lamp H2P Blinks Can also be set during operation described above Indoor unit If ON button is pushed during operation described above the operation lamp lights but the compressor does not operate Returns to normal when automatic setting is complete 3 When an Indoor Unit or Outside Unit Has Been Added or Indoor or Outside Unit PC Board Has Been Changed Be sure to push and hold the RESET button for 5 seconds If not the addition cannot be recognized In this case the unit cannot be run for up to 1
126. pipe temp lt 158 F OFF Crankcase heater lt P Crankcase heater ON Discharge pipe temp gt 167 F Function 61 Startup Control SiUS30 604 4 Startup Control This startup control is used to provide the following control to reduce the compressor load resulting from liquid return or else during compressor startup and also determine the position of four way valves 4 1 Cooling Start up Control Both master and slave units operate same time for changing 4 way valve position Normal operation after completion Thermostat ON Parts name Symbol 4 2 Starting control 52Hz Compressor M1C 0 Hz 2 steps 20 sec until Pc Pe 71 05 psi Inverter cooling fan M1 2F OFF p fan 4 way valve Main 20S1 Y5S Holding OFF 4 way valve for heat exchanger 2052 Y7S Holding OFF Main heat exchanger electronic exp valve EV1 Y1E 0 pulse 2000 pulse Sub cooling electronic exp valve 0 pulse 0 pulse Hot gas bypass solenoid valve SVP Y1S OFF ON Water heat exch oil return solenoid valve SVE Y2S OFF OFF Receiver gas charging solenoid valve SVL Y3S OFF OFF Receiver gas discharge solenoid valve SVG Y4S OFF OFF unit liquid pipe stop SVSL Y6S ON ON Indoor unit fan M1 2F Indoor unit control Indoor unit control Indoor unit expansion valve EV Y1E
127. right The cool heat selection setting can be changed on setting item 2 3 4 After setting push the RETURN button BS3 and decide the item os setting ispay Ment HBP HP 6 H7P Pispay nno 2 CH selector individual e e 3 selector Master e O e e 4 selector Slave 5 Demand operation Setting No 1 5 6 are the present status display only Display for malfunction preparing test run When the RETURN button BS3 is pushed the status becomes the initial status of Setting mode 1 V2763 Normal e e Malfunction e Preparing Test run 9 e Display during demand operation Normal e e O e e e e During demand operation O ON e OFF 9 Blinking H3P to H5P LED display changes depending on setting No 2 3 4 112 Test Operation SiUS30 604 Field Setting b Setting mode 2 Push and hold the MODE button BS1 for 5 seconds and set to Setting mode 2 lt Selection of setting items gt Push the SET button BS2 and set the LED display to a setting item shown in the table on the right Push the RETURN but
128. that the suction air temperature at the time of starting the dry operation is Tro and the suction air temperature in operation is Tr Tr lt Tro 1 8 F Thermostat OFF Tro Suction air temperature at the F when Tros 76 1 F n dry operation time of starting the dry operation Tr lt Tro 2 7 F Tr Temperature detected with the F In dry operation n when Tro gt 76 1 F y p suction air thermistor R1T Furthermore while in dry operation mode fans operate at L flow rate stops for a period of six minutes while the thermostat is OFF and then return to operation at L flow rate This control is used to prevent a rise in indoor temperature while in thermostat OFF mode 88 Function SiUS30 604 Outline of Control Indoor Unit 9 6 Electronic expansion Valve Control Electronic expansion Valve Control In cooling to maximize the capacity of indoor unit heat exchanger evaporator operate the electronic expansion valve under PI control so that the evaporator outlet superheated degree SH will become constant In heating to maximize the capacity of indoor unit heat exchanger condenser operate the electronic expansion valve under PI control so that the evaporator outlet superheated degree Condenser outlet subcooled degree will become constant Cooling SHZTH4 TH2 SH Evaporator outlet superheated degree Heating 1 TH4 Temperature F detected w
129. to previous refrigerants R 22 R 407C Furthermore the refrigerating machine oil has been changed from Suniso oil to Ether oil and if oil mixing is occurred sludge results in the refrigerants and causes other problems Therefore gauge manifolds and charge hoses that are used with a previous refrigerant R 22 R 407C can not be used for products that use new refrigerants Be sure to use dedicated tools and devices W Tool compatibility Tool Compatibility HFC HCFC R 410A R 407C R 22 Reasons for change Gauge manifold Do not use the same tools for R 22 and 10A Charge hose specification differs for R 410A and R 407C Gas detector The same tool can be used for HFCs Vacuum pump To use existing pump for HFCs pump with reverse flow vacuum pump adaptor must be preventive function installed Weighting instrument O Flaring tool Clutch type For 410 flare gauge is necessary Torque wrench Torque up for 1 2 and 5 8 Pipe cutter Pipe expander Pipe bender Pipe assembling oil x Due to refrigerating machine oil change No Suniso oil can be used Refrigerant recovery device Check your recovery device Refrigerant piping See the chart below Only 19 1 is changed to 1 2H material while the previous material is As for the charge mouthpiece and packing 1 2
130. turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn off the power supply Are there foreign particles around the fan YES gt Remove the foreign particles harness from the fan motor and the harness of ATP fan motor fixed to X20A connected Connect properly fan be removed from the junction connector between the fan motor and A1P and rotated easily with hands NO Replace the fan motor Check the fan motor connector Refer to the figure in following page Does the resistance between pins satisfy the judgment criteria NO gt Replace the fan motor heavy current PCB A1P and low current PCB A2P connected properly Connect properly gt Replace the indoor PCB 160 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller Check on connector of fan motor Power supply cable 1 Turn off the power supply Measure the resistance between phases of U V W at the motor side connectors three core wire to check that the values are balanced and there is no short circuiting while connector or relay connector is disconnected Red U Measure the resistance White V values between phases U V W Black w Troubleshooting 161 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 5 AT Indoor Unit
131. unit Inverter overcurrent protection control continues for 3 min or more Not limited 220 V unit la 26 5A Invertercurrent la amp Invertercurrent la INV upper limit frequency 230 Hz v Inverter current la Comp upper limit down 1 step 15 sec Comp upper limit up 1 step 20 sec Inverter current la Inverter current v within 60 min Inverter fin temperature control gt Normal operation gt 122 F Tfin lt 86 F Cooling fan for electric component box Tfin gt 179 6 F amp C gt 25 for 260 sec 220V unit When occurring 3 times within 60 Less than 2 times Inverter current standby malfunction code L8 is output Tfin Inverter fin temperature Tfin lt 174 2 F ompressor up limit frequency 230 Hz Comp upper limit down 1 step 15 sec Y Tfin lt 174 2 F for continues 3 min Comp upper limit up 1 step 1 min Tfin gt 179 6 F Fin temp standby Less than 2 times within 60 min Tfin gt 208 4 F When occurring 3 times within 60 min the malfunction code L4 is output 74 Function SiUS30 604 Protection Control 6 5 Cooling Fan Control his function is used for ON OFF control of the cooling fan to cool the inver
132. units 5 lt s Wiring adaptor for electrical KRP4A71 74 To control the group of indoor units collectively which are connected by the transmission wiring of 3 5 appendices 2 remote controller Guo External control adaptor for outdoor DTA104A53 61 Cooli o h 61 ooling Heating mode change over Demand control and Low noise control are available between a be installed on indoor 62 the plural outdoor units Note 1 is a registered trademark of American Society of Heating Refrigerating and Air Conditioning Engineers ASHRAE 2 LONWORKS is a registered trade mark of Echelon Corporation Appendix 277 Thermistor Resistance Temperature Characteristics SiUS30 604 5 Thermistor Resistance Temperature Characteristics Outdoor unit fin thermistor R1T T F T C kQ 14 10 18 8 21 6 88 0 25 4 79 1 28 2 71 1 32 0 64 1 35 2 57 8 39 4 52 3 43 6 47 3 46 8 42 9 50 10 38 9 54 12 35 3 57 14 32 1 61 16 29 2 64 18 26 6 68 20 24 3 72 22 22 2 75 24 20 3 79 26 18 5 82 28 17 0 86 30 15 6 90 32 14 2 93 34 13 1 97 36 12 0 100 38 11 1 104 40 10 3 108 42 9 5 111 44 8 8 115 46 8 2 118 48 7 6 122 50 7 0 126 52 6 7 129 54 6 0 133 56 5 5 136 58 5 2 140 60 4 79 144 62 4 46 147 64 4 15 151 66 3 87 154 68 3 61 158 70 3 37 162 72 3 15 165 74 2 94 169 76 2 75 172 78 2 51 176 80 2
133. 0 pulse BS 20RH 008 20RH Y3S OFF OFF Heating BS 20RT 20RT Y1S OFF OFF Ending condition 1 minute Max 5 minutes 62 Function SiUS30 604 Startup Control 4 22 Heating Start up Control Both master and slave units operate same time for changing 4 way valve position Normal operation after completion Thermostat Parts name Symbol Starting control 52Hz Compressor M1C 0 Hz 2 steps 20 sec till Pc Pe gt 71 05 psi Inverter cooling fan M1 2F OFF Inverter cooling fan control 4 way valve Main 2081 Y5S Holding ON 4 way valve for heat exchanger 2052 Y7S Holding OFF Main heat exchanger electronic exp valve EV1 Y1E 0 pulse 180 pulse Sub cooling electronic exp valve EV3 Y3E 0 pulse 0 pulse Hot gas bypass solenoid valve SVP Y1S OFF ON Water heat exch oil return solenoid valve SVE Y2S OFF OFF Receiver gas charging solenoid valve SVL Y3S OFF OFF Receiver gas discharge solenoid valve SVG Y4S OFF OFF unit liquid pipe stop SVSL Y6S ON ON Indoor unit fan mE M1 2F Indoor unit control Indoor unit control Indoor unit expansion valve EV 0 pulse Indoor unit control BS 20R 20RH Y3S ON ON BS 20RT 20RT Y1S OFF OFF Ending condition 1 minute Max 6 minutes 40 sec Function 63 Startup Control SiUS30 604 4 3 Pressure Equalizing Control This pressu
134. 00 x2 Heating Capacity Btu h 34 000 40 000 54 000 Casing Color Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Dimensions HxWxD in 15 3 8 x 28 3 8 x 27 1 8 15 3 8 x 43 3 4 x 27 1 8 15 3 8 x 43 3 4 x 27 1 8 Coil Cross RowsxStagesxFPI 3 16 13 3x16x13 3x16x13 Fin Coil Face Area ft 1 95 343 343 Model D11 2D3AA1VE 2D11 2D3AG1VE 2D11 2D3AF1VE Type Sirocco Fan Sirocco Fan Sirocco Fan Motor Output HP 0 21 0 36 0 58 Fan Air Flow Rate H L cfm 690 565 1 020 810 1 270 1 020 Fxternal Static Pressure iar Ag 0 66 0 43 0 71 0 43 1 0 0 72 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Glass Fiber Glass Fiber Glass Fiber Air Filter 5 5 5 Liquid Pipes in 3 8 Flare Connection 3 8 Flare Connection 3 8 Flare Connection Piping Gas Pipes in 5 8 Flare Connection 5 8 Flare Connection 95 8 Flare Connection Connections VP25 VP25 VP25 Drain Pipe in External Dia 1 1 4 External Dia 1 1 4 External Dia 1 1 4 Internal Dia 1 Internal Dia 1 Internal Dia 1 Machine Weight Mass Lbs 99 139 144 6 Sound Level H L dBA 45 41 45 41 48 45 Safety Devices Fuse Thermal Fuse for Fan Motor Fuse Thermal Fuse for Fan Motor Fuse
135. 01 F 4 direction air flow 13 23 1 02 T 3 direction air flow 03 W 2 direction air flow Setting of Air Flow Direction Adjustment Range Make the following air flow direction setting according to the respective purpose qo 2537 Setting Table Mode No First Code No Second Code No Setting 01 Upward Draft prevention 13 23 4 02 Standard 03 Downward Ceiling soiling prevention Air Flow Rate Switching at Discharge Grille for Field Air Flow Rate Switching When the optional parts high performance filter etc is installed sets to change fan speed for securing air flow rate Follow the instruction manual for the optional parts to enter the setting numbers Test Operation Field Setting SiUS30 604 3 1 7 Centralized Control Group No Setting BRC1C Type When in the normal mode push the 3 If carrying out centralized control by central remote controller or unified ON OFF controller group No must be set for each group individually by remote controller Group No setting by remote controller for centralized control button for 4 seconds or more and operation then enters the field setting mode Set mode No 00 with the button Push the H button to inspect the group No display Set the group No for each group with the button The group No increases in the manner of 1 00 1 01 1 15 2 00 4 15 However the unified ON
136. 04 3010 NOLIVNTNLUDS 151 13404402 403 80100 801234402 51 HdN1S u0001n0 23 13 NOISSINSNVHL HO00100 H000100 23 3 NOISSINSNVHL 800081 OL ONTHIM NOIIO3NNOO 804 NOTLVTIVISNT JHL Ol 83434 S TWONVA NOLIVITVISN 01 83438 uUOldYQv 801140 3Hl 94150 N3HM 7 231044 gt 80123NN02 res 41415 wWNINESI CII 01313 ME 7 LINN 3015110 IHL OL AINO Q311ddY 1 NYUDVIG ONIUIM 53100 1102812 HOS 0100 158 24 Lobel im m 140 WX 2 0 I Sup qu 5h ur INIS di NIX TTE IHM 8 1109 E A0 2
137. 1 MODE button MODE button for 5 seconds one time Setting mode 2 Setting mode 1 Monitor mode MODE Push the BS1 MODE button one time MODE MODE O On Off 9 Blinking V2761 Set Select mode with BS2 SET button in each selection step Press BS1 MODE button for more than 5 sec Setting mode 2 Setting mode 1 Initial condition Press BS1 MODE button Monitor mode r Setting item selection Set r Check item selection Set Press BS3 y RETURN button Press BS3 y RETURN button Setting condition selection Set Contents display Press BS3 RETURN button Press BS3 y RETURN button Setting condition Contents display Press BS3 RETURN button Press BS1 MODE button Press BS1 MODE button Y V2762 Test Operation 111 Field Setting SiUS30 604 a Setting mode 1 Normally Setting mode 1 is set In case of other status push MODE button BS1 one time and set to Setting mode 1 lt Selection of setting items gt Push the SET button BS2 and set LED display to a setting item you want Regarding setting item No 1 5 only the present status is displayed For the respective description refer to the table shown on lower
138. 1 59104 101324940 265 Appendix SiUS30 604 iagrams D iring w Heat Pump RWEYQ60 72 84 144 168 216 252MTJU Operation System 6LvSSOGE sided 19410 pue 51055914 02 941 329 101291014 23044 V 420340 944 10 1105289 35044 aso eseud 892408 19 04 3 up di3 nu 943 Gurzijlan 3 u 4229 aul J MOd 943 0 10 101 02 920 8 101121 OU S pue K UO s pin6 49211440 941 23N 3 11 H3M0d Fav S3UIM 3S HOLIMS a a SLINA 800081 H3M0d 318 2 S3UIM 0 3503 H2 L IMS 3 NI1 3UIM 2 318 2 3501 HOLIMS a Jn u3M0d 53UIM Z NOISSINSNVHI 1 3N NOISSINSNYHL 318V S3UIM 318V S3HIM 9189 S3HIM 3811 NOISSINSN E LINN 2 LINN Np 35 4 HOLIMS 35 4 HOLIMS E vul 318V S3UIM HOLIMS NIWA a 14405 H3M0d L LINN NOISSINSNVH1 3NI1 NOISSINSNYUL 318V S
139. 11 Adaptor for wiring 1 72 KRP1B71 1 73 12 Wiring adaptor for electrical appendices 2 KRP4A73 KRP4A71 KRP4A72 KRP4A74 C 3D043022D Notes 1 Installation box No 4 is necessary for each adaptor marked x 2 Electrical box 5 1 6 1 is required for controller No 5 6 Building management system Part name Model No Function intelligent S basic Hardware Touch DCS601C71 Air Conditioning management system that can be controlled by a compact all in one unit es Controller o e 9 Option Software Web DCS004A71 Monig and controls the air conditioning system using the Internet and Web browser application 2 i Interface unit to allow communications between VRV and BMS Operation and monitoring of air c 2 Interface for use in BACnet DMSS02A71 conditioning systems through BACnet communications o 5 Expansion kit installed on DMS502A71 to provide 3 more DIII NET communication ports Not E Optional DIII board DAM411A1 usable independently 5 Expansion kit installed on DMS502A71 to provide 16 more wattmeter pulse input points Not E Optional Di board DAM412A1 usable independently x Interface unit to allow communications between VRV and BMS Operation and monitoring of air 3 Interface for use in LONWORKS DMS504B71 conditioning systems through LONWORKS communication 2 unification adaptor for computerized DCS302A72 Interface between the central monitoring board and central control
140. 11A or X14A of the indoor unit PC board YES gt Connect the connector and turn on again Resistance is normal when measured after disconnecting the thermistor R3T from the indoor unit PC board 0 6kQ 360kQ NO gt Replace the thermistor R3T YES gt Replace the indoor unit PC board V2785 2 Refer to thermistor resistance temperature characteristics table on P278 Troubleshooting Troubleshooting by Indication on the Remote Controller SiUS30 604 2 11 9 Indoor Unit Malfunction of Thermistor R1T for Suction Air Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting LS All indoor unit models Malfunction detection is carried out by temperature detected by suction air temperature thermistor When the suction air temperature thermistor becomes disconnected or shorted while the unit is running W Defect of indoor unit thermistor R1T for air inlet W Defect of indoor unit PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Connector is connected to X13A or X19A of the indoor unit PC NO gt Connect the connector and turn on again is normal when measured after NO R1T from the indoor gt Replace the thermistor R1T
141. 13913 MOT pinbij eansseud eiunsseud uiu jonuoo 3 H BAJRA plouayos DK BAJRA 104910 9 FETTE bu 100 915 yun episino Joopu NOs lt gt uoisuedxe 91104295 NO ue4 1 1oopul Powy L NO Buioo5 2 uoisuedxe NO ueq 1 1oopu Bullooo 2 NO ue4 1 1oopu NT len eeu angen pousos UU sg angen pouaiog MAU anen edm sg anga pousos 2911 omi Adeg edm endeo yun sg OL Refrigerant Circuit 46 Refrigerant Flow for Each Operation Mode SiUS30 604 C Heating and simultaneous cooling heating operation mode When the outdoor water cooled heat exchanger is used as evaporator In case there are indoor units operat th cooling thermostat
142. 2 minutes to automatically set the address indoor outside unit address etc Status Outside unit Test lamp H2P Blinks Can also be set during operation described above Indoor unit If ON button is pushed during operation described above the UH or 04 N Caution When the 400 volt power supply is applyed to phase by mistake malfunction indicator blinks Returns to normal when automatic setting is complete replace Inverter PC board A2P and control transformer T1R T2R in switch box together V0847 Test Operation 95 Test Operation SiUS30 604 1 1 3 Check Operation Be sure to conduct the check operation If the check operation is not conducted the malfunction code US will be displayed on the remote controller thus disabling the normal operation Through the following procedure the check operation is automatically conducted A period of approximately 20 minutes approximately 30 minutes at maximum is required to complete the judgment For details of the check operation and LED display refer to information on page 134 If the LED H1P turns OFF the system is set to Setting mode 1 Check Setting mode 1 If the H1P turns ON or OFF pressing the PAGE FEED button BS1 will set the system to Setting mode 1 Start check operation seconds or more The following check operation is automatically started 1 Check the errone
143. 245 5 3 Display Under Host Computer Integrate Control Blinks Repeats Double Blink ee ner ban 248 Troubleshooting 139 Troubleshooting by Remote Controller SiUS30 604 1 Troubleshooting by Remote Controller 1 1 The INSPECTION TEST Button The following modes can be selected by using the Inspection Test Operation button on the remote control Depress Inspection Test Operation button for more than 4 seconds Service data can be obtained Malfunciton code history Temperature data of various sections Service settings can be made Forced fan ON Air flow direction volume setting Indoor unit settings can be made Filter sign time Air flow direction Others Local setting mode Depress Inspection Test Operation button for more than 4 seconds Press Inspection Test Operation button once Press Inspection Test Operation button once Or after 30 minutes Press Inspection Test Operation button once After 10 seconds Following codes can be checked Malfunction codes Indoor model code Outdoor model code gt operation Thermostat is forcibly turned on mode Press Inspection Test Operation button once V0815 140 Troubleshooting SiUS30 604 Troubleshooting by Remote Controller 1 2 Self diagnosis by Wired Remote Controller If operation stops
144. 278 Troubleshooting 171 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 13 Outside Unit PC Board Defect Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting RWEYQ60 72 84MTJU Detect abnormalities by checking communication status of the hard part between the indoor unit and outside unit When communication status of the hard part between the indoor unit and heat source unit is abnormal Faulty main PCB Faulty communication part photo coupler on the main N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn off the power supply once and then turn it on again Does it return normally YES gt Check the following parts and continue operation e Check noise etc e Check whether foreign particles electrically conductive attach to the terminal of the main PCB X1M Foreign particles electrically conductive are attached on the terminal X1M of the main PCB YES gt Remove the foreign particles electrically conductive and restart operation gt Replace the heat source main PCB 172 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 14 Outside Unit Actuation
145. 287 Precautions for New Refrigerant R 410A SiUS30 604 2 Torque wrench P W Specifications Dimension Unit mm Nominal size Class 1 Class 2 Previous 1 2 24 26 24 5 8 27 29 27 No change in tightening torque No change in pipes of other sizes W Differences Change of dimension B Only 1 2 5 8 are extended For class 1 R 407C For class 2 R 410A Dimension B 3 Vacuum pump with check valve Vacuum pump adapter Reverse flow preventive vacuum adapter 4 W Specifications Discharge speed e Maximum degree of vacuum 50 l min 50Hz Select a vacuum pump which is able to keep 60 l min 6 2 the vacuum degree of the system in excess of e Suction port UNF7 16 20 1 4 Flare 14 6 psi 5 torr or 5000 micron or 755 mmHg 1 2 20 5 16 Flare with adapter m Differences Equipped with function to prevent reverse oil flow Previous vacuum pump can be used by installing adapter 288 Precautions for New Refrigerant R 410A SiUS30 604 Precautions for New Refrigerant R 410A 4 Leak tester Specifications Hydrogen detecting type etc Applicable refrigerants R 410A R 407C R 404A R 507A R 134a etc Differences Previous testers detected chlorine Since HFCs do not contain chlorine new tester detects hydrogen Refrigerant oil Specifications Contains synthetic oil therefore
146. 2ton 14ton 18ton 21ton RWEYQ 60M 72M 84M 144M 168M 216M 252M Max Number of Connectable 10 12 14 20 20 22 32 Indoor Units Total Capacity 9B 42 72 84 108 126 Units to be 5 4 2 e COT CEEA 78 93 5 109 187 218 280 327 5 Indoor Units Capacity Range 0 6ton 0 8ton 1ton 1 5ton 2ton 2 5ton 3ton 4ton Capacity Index 7 5 9 5 12 18 24 30 36 48 Ceiling Mounted Cassette Type FXFQ 12M 18M 24M 30M 36M Multi Flow Slim ceiling Mounted FXDQ 07M 09M 12M 18M 24M Duct Type Ceiling Mounted Built in Type FXSQ 12M 18M 24M 30M 36M 48M Ceiling Mounted Duct Type FXMQ 30M 36M 48M Ceiling Suspended FXHQ 12M 24M 36M Type Wall Mounted Type FXAQ 07M 09M 12M 18M 24M Floor Standing Type FXLQ 12M 18M 24M Connected Floor Standing Type FXNQ 12M 18M 24M General Information 13 Capacity Range SiUS30 604 14 General Information SiUS30 604 Part 2 Specifications si RE T Tm 16 us dc 16 Le Bonis u uy n uuu Ds s Sa 23 1 3 24 Specifications 15 Specifications SiUS30 604 1 Specifications 1 1 Outside Units Model Name RWEYQ60MTJU 1 Cooling Capacity Btu h 60 000 2 Heating Capacity Btu h 67 500 Casing Color Ivory White 5Y7 5 1 Dimensions HxWxD in 39 3 8x30
147. 3 4x21 11 16 Heat Exchanger Stainless Steel Plate Type Type Hermetically Sealed Scroll Type Piston Displacement rh 9 21 Comp of Revolutions r p m 4 350 Motoro utputxNumber kW 32 Starting Method Soft Start Liquid Pipe in 3 8 in C1220T Flare Connection Suction Gas Pipe in 3 4 in C1220T Brazing Connection x3 Connecting Discharge Gas Pipe in 4 5 8 in C1220T x5 3 4 in C1220T Brazing Connection Pipes Water inlet 1 1 4 Female Thread Water outlet 1 1 4 FPT Female Thread Drain outlet 1 2 FPS Female Thread Machine Weight Mass Lbs 330 Sound Level Reference Value dBA 50 Safety Devices High Pressure Switch Inverter Overload Protector Fusible Plugs Capacity Control 9 23 100 Refrigerant Name R 410A Refrigerant Charge Lbs 9 9 Control Electronic Expansion Valve Refrigerator Oil Synthetic Ether Oil Standard Accessories Installation Manual Operation Manual Connection Pipes Clamps Strainer Conduit Mounting Plate Drawing No 4D054570D Notes 1 1 Indoor temp 80 FDB 67 FWB inlet water temp 85 F outlet water temp 95 F Equivalent piping length 25ft level difference Oft Indoor temp 70 FDB 60 FWB inlet water temp 70 F Equivalent piping length 25ft level difference Oft 3 In the case of heat pump system suction gas pipe is not used 4 In the case of heat recovery system 5 In the case of heat pump system 2 This unit cannot be installed outdoors Install indoors Machine room etc
148. 3UIM 0 318 2 S3UIM SLINM 398005 q aseud pasjagAoJ sl un 994 121940 1920 102112 0 S UN 944 110 uo 5906 Jamod 1 1 JO 1111915504 991 5151 9 9Ud nba 941 40 51515002 915 5 sly 592105 19 04 341 34022930 ULI 1243 U23 MS ay 231 343 PUL 1221845 993 21810 23801 21412915 V J04 s 038p apnjOU 0 01129UU02 0 s1U 0d 19096 S UMO 4 YIM 921211902 papunoJ6 aq 34941 31 01 3512234 10180 6 asns ag 8 5 L eus yrun 9 M uei AQ papiaOJd jsnu siuauoduo pue Plaid 189510 JIN Jad s128UU02s p pasnj 10350 uelbeip Buldim aa Ki uo 5101 89p02 9201 9198221 9 3504 HOLIMS an HOLIMS 4405 83004 21132319 p3sua2 s 019p 10 SY 2npuoo 194402 850 de pue 23N 9 02 co 1221432913 1900110 944 4414 K dwod 1snu 9115 943 U0 1 2014 0 s e J93eU pue siuauoduoo GUlJIM V 59208 dung 191345 101121940 Appendix 266 SiUS30 604 Wiring Diagrams 2 3 Indoor Unit jj R OR us REM LLER NAL NNECTOR FIELD WIRING SING
149. 4 19430 944 JO 31042219 fiP1UOUOU 9524 950 9519 91 JO 11111415504 943 s3s X8 91991021 OL Ue SJ0SS9Jdu0 941 12914 ALW 95094 pasJgAeJ u si un 991 6 393940 AL 90 1102112 10122910144 9sPud e 1 1940 sj un 941 O UM 44O pue UO 5906 Jamod 8921105 J MOd 3jd 3 nu 991 buizij 13n zu wd Nb 941 40 51518009 915 8 514 2512294 JIUURW ue u 10 10 p pu9lu 400 S pue Kj UO sapinb uoi329uu02 10 s1U 0d 592108 J MOd 9U P 1dnJJ9 U UVI 1043 921148 UPW 34 iun 4209 40 3111 49 04 Y 01 9597 941 U21 MS 941 10150 03 2415 ag 8 U0130 03sU 21112945 V JOJ s I 19p apnjou 01 143196 S UMOYS L 8p02 220 9 4921 440 943 pup JIN 941 YJ M JUV dUWOI U papunoJb aq 1095 191801 6 yrun 9 3513 3503 NW rolls HOLIAS NOISSINSNVUL Adds HOLIMS NIYN an Aldd S 3513 HOLIMS n UP1211328 8 P9SU9311 AQ 44 45 004 02 pue 11 719198 JOJ JIN 194 s329UU028 p 2 50 10 sv bUIJIM 995 510312npuO2 194402 asp 8p02 10201 21492 1221432913 eUO 1eN 943 94116 K dwod jsnu 931 943 UO 12014 94 03 510119303 PUL siuauoduoo 19 029 JRIH ls s dd pue 2384 02 BULJIM IY
150. 4MVJU Wired Remote Remote Controller PHC1G71 Controller Wireless Remote BRC4C82 Controller 1062W 4P 1013W Fan Motor M1F Motors Thermal Protector 266 9 F OFF 181x27 F ON Capacitor fan motor C1 4 0uF 450VAC 7 0uF 450VAC 1 ST8601A 1 04 L250 Thermistor Suction Air R1T 20kQ 77 F Thermistor for Heat ST8605 4 8 L800 Thermistors Exchanger High Temp RST 20kQ 77 F Thermistor Heat ROT ST8602A 4 6 L800 Exchanger 20kQ 77 F Float Switch S1L FS 0211 Others Transformer TIR TR25H25R0 Appendix 273 List of Electrical and Functional Parts SiUS30 604 Model Parts Name Symbol FXSQ FXSQ FXSQ FXSQ FXSQ FXSQ Remark 12MVJU 18MVJU 24MVJU 30MVJU 36MVJU 48MVJU Wired Remote i Remote Controller BRC1C71 Option Controller Wireless Remote Controller BRC4C82 1650W 4 1085W4P 16125 4P 10225W 4P Fan Motor M1F Motors Thermal Fuse 305 6 F Thermal protector 275 F OFF 188 6 F ON PLD 12230DM Drain Pump Thermal Fuse 336 2 F ST8601 13 4 L630 Thermistor Suction Air R1T 20kQ 77 F Thermistor for Heat ST8605 7 8 L1600 Thermistors Exchanger High Temp 20 77 F Thermistor Heat R2T ST8602A 7 6 L1600 Exchanger 20kQ 77 F Float Switch S1L FS 0211 Others Fuse
151. 5 35 Model QTS45A17M QTS45A17M Type Turbo Fan Turbo Fan Fan Motor Output HP 0 12 0 12 Air Flow Rate H L cfm 990 710 990 740 Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Liquid Pipes in 3 8 Flare Connection 3 8 Flare Connection Piping Gas Pipes in 5 8 Flare Connection 95 8 Flare Connection Connections m VP25 VP25 Drain Pipe in External Dia 1 1 4 External Dia 1 1 4 Internal Dia 1 Internal Dia 1 Machine Weight Mass Lbs 66 66 Sound Level H L dBA 38 32 40 33 Safety Devices Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve Connectable outdoor unit R 410A Series R 410A Series Model BYC125K W1 BYC125K W1 Decoration Color White 10 9 0 5 White 10Y9 0 5 Panels Dimensions HxWxD in 1 5 8x 37 3 8 x 37 3 8 1 5 8 x 37 3 8 x 37 3 8 Option Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Weight Lbs 11 11 Standard Accessories Operation manual Installation manual Paper pattern for installation Drain hose Clamp metal Washers Sealing pads Clamps Screws Insulation for fitting Operat
152. 6 34 246 2 119 7 68 68 0 20 249 00 158 0 70 35 11 248 0 120 7 47 69 8 21 238 36 159 8 71 33 92 249 8 121 7 26 71 6 22 228 05 161 6 72 32 78 251 6 122 7 06 73 4 23 218 24 163 4 73 31 69 253 4 123 6 87 75 2 24 208 90 165 2 74 30 63 255 2 124 6 69 77 0 25 200 00 167 0 75 29 61 257 0 125 6 51 78 8 26 191 53 168 8 76 28 64 258 8 126 6 33 80 6 27 183 46 170 6 77 27 69 260 6 127 6 16 82 4 28 175 77 172 4 78 26 79 262 4 128 6 00 84 2 29 168 44 174 2 79 25 91 264 2 129 5 84 86 0 30 161 45 176 0 80 25 07 266 0 130 5 69 86 0 31 154 79 177 8 81 24 26 267 8 131 5 54 87 8 32 148 43 179 6 82 23 48 269 6 132 5 39 89 6 33 142 37 181 4 83 22 73 271 4 133 5 25 91 4 34 136 59 183 2 84 22 01 273 2 134 5 12 93 2 35 131 06 185 0 85 21 31 275 0 135 4 98 95 0 36 125 79 186 8 86 20 63 276 8 136 4 86 96 8 37 120 76 188 6 87 19 98 278 6 137 4 73 98 6 38 115 95 190 4 88 19 36 280 4 138 4 61 100 4 39 111 35 192 2 89 18 75 282 2 139 4 49 102 2 40 106 96 194 0 90 18 17 284 0 140 4 38 104 0 41 102 76 195 8 91 17 61 285 8 141 4 27 105 8 42 98 75 197 6 92 17 07 287 6 142 4 16 107 6 43 94 92 199 4 93 16 54 289 4 143 4 06 109 4 44 91 25 201 2 94 16 04 291 2 144 3 96 111 2 45 87 74 203 0 95 15 55 293 0 145 3 86 113 0 46 84 38 204 8 96 15 08 294 8 146 3 76 114 8 47 81 16 206 6 97 14 62 296 6 147 3 67 116 6 48 78 09 208 4 98 14 18 298 4 148 3 58 118 4 49 75 14 210 2 99 13 76 300 2 149 3 49 120 2 50 72 32 212 0 100 13 35 302 0 150 3 41 Appendix
153. 62 68 0 20 25 01 158 0 70 3 50 69 8 21 23 91 159 8 71 3 38 71 6 22 22 85 161 6 72 3 27 73 4 23 21 85 163 4 73 3 16 75 2 24 20 90 165 2 74 3 06 77 0 25 20 00 167 0 75 2 96 78 8 26 19 14 168 8 76 2 86 80 6 27 18 32 170 6 77 2 77 82 4 28 17 54 172 4 78 2 68 84 2 29 16 80 174 2 79 2 60 86 0 30 16 10 176 0 80 2 51 278 Appendix SiUS30 604 Thermistor Resistance Temperature Characteristics Outdoor Unit Thermistors for Discharge Pipe R31T 32T T C T F T C 32 0 0 640 44 122 0 50 72 32 212 0 100 13 35 33 8 1 609 31 123 8 51 69 64 213 8 101 12 95 35 6 2 579 96 125 6 52 67 06 215 6 102 12 57 37 4 3 552 00 127 4 53 64 60 217 4 103 12 20 39 2 4 525 63 129 2 54 62 24 219 2 104 11 84 41 0 5 500 66 131 0 55 59 97 221 0 105 11 49 42 8 6 477 01 132 8 56 57 80 222 8 106 11 15 44 6 7 454 60 134 6 57 55 72 224 6 107 10 83 46 4 8 433 37 136 4 58 53 72 226 4 108 10 52 48 2 9 413 24 138 2 59 51 98 228 2 109 10 21 50 0 10 394 16 140 0 60 49 96 230 0 110 9 92 51 8 11 376 05 141 8 61 48 19 231 8 111 9 64 53 6 12 358 88 143 6 62 46 49 233 6 112 9 36 55 4 13 342 58 145 4 63 44 86 235 4 113 9 10 57 2 14 327 10 147 2 64 43 30 237 2 114 8 84 59 0 15 312 41 149 0 65 41 79 239 0 115 8 59 60 8 16 298 45 150 8 66 40 35 240 8 116 8 35 62 6 17 285 18 152 6 67 38 96 242 6 117 8 12 64 4 18 272 58 154 4 68 37 63 244 4 118 7 89 66 2 19 260 60 156 2 69 3
154. 66 2 8 Indoor Unit Malfunction of Capacity Determination Device 167 2 9 CY Indoor Unit Malfunction of Thermistor R2T for Heat Exchanger e una setae erp 168 2 10 5 Indoor Unit Malfunction of Thermistor R3T for Gas Pipes 169 2 11 CS Indoor Unit Malfunction of Thermistor R1T for Suction Air 170 2 12 t Indoor Unit Malfunction of Thermostat Sensor in Remote Controller Fate d quss etes e 171 2 13 Outside Unit PC Board 172 2 14 Outside Unit Actuation of High Pressure Switch 173 2 15 Outside Unit Actuation of Low Pressure 175 2 16 ES Compressor Motor LOCK 177 2 17 ES Outside Unit Malfunction of Moving Part of Electronic Expansion Valve Y1E 179 2 18 F3 Outside Unit Abnormal Discharge Pipe Temperature 181 2 19 Refrigerant Overcharged a 182 2 20 Malfunction of Water system 184 2 21 43 Outside Unit Malfunction of Discharge Pipe Thermistor R3T 186 2 22 U4 Malfunction of Heat Exchanger Gas Pipe Thermistor
155. 807 814405 H3M d Appendix 264 iagrams D iring w SiUS30 604 iring 2 2 Outside Unit Field W Heat Recovery RWEYQ60 72 84 144 168 216 252MTJU Operation System 8LvSSOGE LINN AINO 01100 3811 U3N0d 3N11 83004 311 43404 SLINA 800081 318V S3UIM 2 3513 HOLIMS 1 318 SHIM 2 3503 HOLIMS 110 11877 S3UIM 7 3515 HOLIMS K NI H3W04 SE 3503 HOLIMS H3N0d 318V2 S3HIM 2 NOISSIMSNVUL 3NI1 NOISSIMSNYUL 3NI1 NOISSIWSNYUL 3NI1 NOISSIWSNVUL 318v 5381 2 318Y S3HIM 2 318V S3HIM 0 318V S3HIM 2 3011 SLINA Sg 318 S3UIM 7 3504 HOLIMS HOLIMS 10 318v 5381 0 318 2 SIIM 2 318 2 S3UIM 2 318V S3UIM 0 an 5 f 5 F 5 II II 3 Peps 54 idee yt l i LINN 2 LINN 1 LINN 3NI1 NOISSINSNVHI 3NT1 NOISSINSNVHI S3UIM 0 37899 S3UIM 2 SLINA 398105 1V3H 5149
156. 83 1 Precautions for New Refrigerant R 410A 284 IEEE UI c 284 u uu 286 Table of Contents v SiUS30 604 gt Drawings amp Flow Charts J V vi Table of Contents SiUS30 604 Introduction 1 Introduction 1 1 Safety Cautions Cautions and m Be sure to read the following safety cautions before conducting repair work Warnings W The caution items are classified into AN Warning and AN Caution The AN Warning 1 1 1 items are especially important since they can lead to death or serious injury if they are not followed closely The AN Caution items can also lead to serious accidents under some conditions if they are not followed Therefore be sure to observe all the safety caution items described below m About the pictograms This symbol indicates an item for which caution must be exercised The pictogram shows the item to which attention must be paid O This symbol indicates a prohibited action The prohibited item or action is shown inside or near the symbol This symbol indicates an action that must be taken or an instruction The instruction is shown inside or near the symbol m After the repair work is complete be sure to con
157. 9 237 Wireless Remote Controller Indoor Unit 100 Piping Diagrams aaa 260 Wiring Diagrams eene 264 BS UNIE tute 0 las 263 Outside Unit 2 264 Indoor Unit 5 261 Outside Unit Field Wiring 265 Outside Units 260 Wiring Diagrams for Reference Power Supply Insufficient or BS Ult iei dece een aa ha vats 271 Instantaneous Failure 210 Indoor Unit 267 Pressure Sensor 280 Procedure for Mounting Dismounting of Switch 256 Procedure for Dismounting 256 Procedure for Mounting 256 R Refrigerant oil u 289 Refrigerant Overcharged 182 vi Drawings amp Flow Charts Warning Daikin Industries Ltd s products are manufactured for export to numerous countries throughout the world Daikin Industries Ltd does not have control over which products are exported to and used in a particular country Prior to purchase please therefore confirm with your local authorized importer distributor and or retailer whether this product conforms to the applicable standards and is suitable for use in the region where the product will be used This statement does not purport to exclude restrict or modify the appli
158. Applicable RWEYQ60 72 84 Models Method of Malfunction is detected by current flowing in the power transistor Malfunction Detection Malfunction When overload in the compressor is detected Decision Conditions Supposed Compressor overload Causes Compressor coil disconnected W Defect of inverter PC board 198 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller Troubleshooting Output current check N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred The secondary current of the inverter is YES higher than 25 1 A for each phase Compressor inspection The YES gt Compressor overload Inspection of the compressor and refrigerant system is required compressor s coil is disconnected Disconnect the the connection between the compressor and inverter Make the power transistor check mode setting ON by service mode Inverter output voltage check Inverter output voltage is not balanced NO gt Replace the compressor Normal if within 5V of power supply Must be measured when frequency is stable After turning NO gt Replace the inverter PC board gt Reset and restart on again L8 blinks again YES gt Compressor inspection Inspect according to the diagnosis procedure for odd noises vibra
159. CENTRAL REM NNECTITT 2 IN CASE CONTROL THE UN TH THE ATTACHED INSTRUCTION MANUAL 3 X23A 15 CONNECTED WHEN THE WIRELESS REMOTE CONTROLLER KIT S BEING USED 4 WHEN CONNECTING THE INPUT FROM OUTSIDE FORCED OFF CONTROL OPERATION CAN BE EMOTE CONTROLLER N DETAILS REFER TO THE INSTALLATION MANUAL ATTACHED THE UNIT SYMBOLS SHOW AS FOLLOWS BLK BLACK BLU BLUE ORG ORANGE PNK PINK RED RED WHT WHITE YLW YELLOW 6 USE COPPER CONDUCTORS ONLY TE WIRES R ON OFF SELECTED BY 4 RECEIVER DISPLAY UNIT WIRELESS REMOTE CONTROLLER A2P ASP X2A 551 p i dE B 22 POWER SUPPLY 208 230V 60Hz RIT R2T ROT SIL I TSI WIR CENTRAL REMOTE C P X2M e X184 CONTROL BOX DE ING ONTROLLER 551 REMOTE CONTROLLER ONAL ACCESSORY MIS WIRED 0 3D042620B FXDQ07M 09M 12M 18M 24MVJU PRINTED CIRCUIT BOARD CAPACITOR MIF F SE F5A 250V LIGHT EMITTING DIODE SERVICE MONITOR GREEN MAGNETIC RELAY MIP MOTOR INDOOR FAN MOTOR DRAIN PUMP ERMAL PRO
160. Detection Malfunction Decision Conditions Supposed Causes Troubleshooting UL All models of indoor unit Centralized controller The principal indoor unit detects the same address as that of its own on any other indoor unit The malfunction decision is made as soon as the abnormality aforementioned is detected m Address duplication of centralized remote controller m Defect of indoor unit PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Optional controllers for centralized control are connected to the indoor unit YES gt Address duplication of central remote controller The setting must be changed so that the central remote control address is not duplicated Replace indoor unit PC board V2828 Troubleshooting 223 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 48 UE Malfunction of Transmission between Centralized Controller and Indoor Unit Remote UE Controller Display Applicable All models of indoor units Models Centralized controller Method of Microcomputer checks if transmission between indoor unit and centralized controller is normal Malfunction Detection Malfunction When transmission is not carried out normally for a certain amount of time Decision Conditions Supposed m Malfunction of transmission between optional controllers for cent
161. ER SIGN RED 3 SYMBOLS SHOWS AS FOLLOWS RED RED WHT WHITE GREEN CONFIRM THE METHOD OF SETTING THE SELECTOR PILIGHT EMITTING DIODE PNK PINK YELLOW BLK BLACK ORG ORANGE BRN BROWN BLU BLUE SWITCH SS1 552 OF WIRED REMOTE CONTROLLER DEFROST ORENGE 4 Q9 SHOWS SHORT CIRCUIT CONNECTOR AND WIRELESS REMOTE CONTROLLER BY INSTALL SS SWITCH MAIN SUB WIRED REMOTE CONTROLLER CONNECTOR FOR OPTIONAL PARTS ATION MANUAL AND ENGINEERING DATA ETC SS2 SELECTOR SWITCH RTT THERMISTOR AIR XT5A CONNECTOR FLOAT SWITCH 8 24 15 CONNECTED WHEN THE WIRELESS WIRELESS ADDRESS SET ISS 1 SELECTOR SWITCH MATN SUB X 3 5 AJCONNECTOR GROUP CONTROL ADAPTOR REMOTE CONTROLLER KIT 15 USED 3D046039C FXHQ12M 24M 36M DOOR UNIT LIGHT UNE DTODE EI TIE Js SR S am ERG MERIT 557 SELECTOR SWITCH POWER as WIRELESS REMOTE CONTROLLER SERVICE MON ECTOR FOR OPTIONAL PARTS 208 230V A3 KAR MAGNETIC RELAY MTS UI WIRING ADAPTOR FOR x EEE KPR MAGNETIC RELAY LECTRICAL APPENDICES 60Hz m 2 E OS LINE a i 5292 iz Q RWWITCHWIEBREED A ve uim xa Sup 2 R HERMTSTOR AIR R2T THERMISTOR COLL L R3T THERMISTOR COIL GAS S1Q LIMIT SWITCH SWING FLAP l h RANSEORMER 208 230V 25V NOTES Mores Dn 1 Coo TERMINAL BLOCK leol CONNECTOR Uu d A HEEL ou SHORT C
162. Electronic Expansion Valve Electronic Expansion Valve Connectable Outdoor Unit R 410A Series R 410A Series R 410A Series Standard Accessories Operation Manual Installation Manual Insulation for Fitting Drain Hose Clamps Screws Washers Level Adjustment Screw Operation Manual Installation Manual Insulation for Fitting Drain Hose Clamps Screws Washers Level Adjustment Screw Operation Manual Installation Manual Insulation for Fitting Drain Hose Clamps Screws Washers Level Adjustment Screw Drawing No C 3D045640 Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping length 25ft Horizontal Nominal heating capacities are based on the following conditions Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping length 25ft Horizontal 3 Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat 4 Anechoic chamber conversion value measured under JISB8616 conditions During actual operation these values are normally somewhat higher as a result of installation conditions 34 Specifications SiUS30 604 Specifications Concealed Floor Standing Type Model FXNQ12MVJU FXNQ18MVJU FXNQ24MVJU 1 Cooling Capa
163. IRCUIT CONNECTOR CETS IDE OTE 3 CTRONIC EXPANS VALVE 2 EIE FIELD WIRING WIRED REMOTE CONTROLLER 3 IN CASE USING CENTRAL REMOTE CONTROLLER REMOTE CONTROLLER R HERMISTOR CONNECT IT TO THE UNIT 1 ACCORDANCE WI TH SS SELECTOR SWITCHLMATNSUB HE ATTACHED NSTRUCTION MANUA SPLAY NTTCATTACHE 4 X234 IS CONNECTED WHEN THE REMOTE TO WIRELESS REMOTE LLER CONTROLLER KIT IS BEING USED A2P PRINTED CIRCUIT BOARD 5 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE WHT T PRINTED CIRC BOAR FORCED OFF OR ON OFF CONTROL WH BSI PUSH BUTTON ON OFF SELECTED BY REMOTE CONTROLLER IN DETAILS REFER WHT CI 4 Tm H WIRED REMOTE CONTROLLER ILIGHT EMITTING BUE S UE UNIT 10 T a OPTIONAL ACCESSORY LIGHT EMITTING DIODE EET BLK BLACK ORG ORANGE PNK PI BK og We X1BA WE MER GREEN T RED RED WHT WHITE YLW YELLOW XA Cap CUTI FILTER SIGN RED 7 USE COPPER CONDUCTORS ONLY F CONTROL BOX 8 m 3D048116 Appendix 269 Wiring Diagrams SiUS30 604 FXLQ12M 18M 24MVJU FXNQ12M 18M 24MVJU NDOOR U TERMINAL BLOCK CONTROL RINTED CIRCUIT BOARD n APACITOR SE B 5A 250V AIR 601 GHT EMITTING DIODE SERVICE MONITOR GREEN CONNECTOR FOR OPTIONAL PARTS AGNETIC RELAY MIF X18A CONNECTOR WIRING ADAPTOR FOR OTOR INDOOR FAN ELECTORICAL APPENDICES HERMO SWITCH
164. Ivory White 5Y7 5 1 Ivory White 5 7 5 1 Ivory White 5Y7 5 1 Dimensions HxWxD in 23 5 8x44 7 8x8 3 4 23 5 8x55 7 8x8 3 4 23 5 8x55 7 8x8 3 4 Coil Cross RowsxStagesxFPI 3 14 17 3 14 17 3 14 17 Fin Coil Face Area ft 2 15 3 04 3 04 Model 2D14B13 2D14B20 2D14B20 Type Sirocco Fan Sirocco Fan Sirocco Fan Fan Motor Output HP 0 034 0 047 0 047 Air Flow Rate H L cfm 280 210 490 380 560 420 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Glass Fiber Urethane Foam Glass Fiber Urethane Foam Glass Fiber Urethane Foam Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mold Resistant m Liquid Pipes in 1 4 Flare Connection 1 4 Flare Connection 3 8 Flare Connection POI Gas Pipes in 91 2 Flare Connection 91 2 Flare Connection 95 8 Flare Connection Drain Pipe in 627 32 Vinyl Chloride 627 32 Vinyl Chloride 27 32 Vinyl Chloride Machine Weight Mass Lbs 66 80 80 4 Sound Level dBA 36 40 41 Safety Devices Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Refrigerant Control Electronic Expansion Valve
165. L Final BS unit L F2 E 2 COOL HEAT FT F2 cOOUHEAT FI F2 COOL HEAT ES selector Selector selector Fig 1 Indoor unit for cooling Test Operation 119 Field Setting SiUS30 604 3 2 3 Cool Heat Mode Switching There are the following 4 cool heat switching modes master outdoor unit by indoor uni master outdoor unit by cool heat Set cool heat separately for each outdoor unit system by indoor unit remote controller Set cool heat separately for each outdoor unit system by cool heat selector Set cool heat for more than one outdoor unit system simultaneously in accordance with unified t remote controller Set cool heat for more than one outdoor unit system simultaneously in accordance with unified switching remote controller Set Cool Heat Separately for Each Outdoor Unit S It does not matter whether or not Set outdoor unit PC board DS1 1 ystem by Indoor Unit Remote Controller there is outdoor outdoor unit wiring to IN factory set Set cool heat switching to IND individual for Setting mode 1 factory set Setthe master unit indoor unit having the right to select the cooling heating operation mode xs QO C H SELECT IND MASTER SLAVE L N O P DEMAND e
166. Low pressure standby gt When occurring 4 times within 60 min the malfunction code 4 is output In heating or cooling heating simultaneous operation When the outside unit heat exchanger is used as evaporator Pe lt 79 7psi 1 Pe LP pressure sensor detection Normal control value for each outside unit 2 This frequency control is carried i 4 out in each outside unit Res Pe gt 102 9psi Pe gt 98 6psi Comp upper limit down Comp upper limit up 1 step 10 sec 1 step 20 sec Pe 91 3psi Compressor 52Hz Pe 10 1psi Less than 3 times within 60 min Low pressure standby When occurring 4 times within 60 min the malfunction code E4 is output Function 71 Protection Control SiUS30 604 In heating or cooling heating simultaneous operation When the outside unit heat exchanger is used as condenser gt 1 Pe LP pressure sensor detection Normal operation value for each outside unit 2 This frequency control is carried Pc 63 8psi Compressor upper limit out in each outside unit frequency 216Hz v Pe gt 71 0psi Comp upper limit up 1 step 20 sec Comp upper limit down 3 steps 10 sec 4 Pe 63 8psi Pe 49 3psi Compressor 52 Hz 10 1psi Low pressure standby
167. Precautions for New Refrigerant R 410A SiUS30 604 1 Precautions for New Refrigerant R 410A 11 Outline 1 1 1 About Refrigerant R 410A W Characteristics of new refrigerant R 410A 1 Performance Almost the same performance as R 22 and R 407C 2 Pressure Working pressure is approx 1 4 times more than R 22 and R 407C 3 Refrigerant composition Few problems in composition control since it is a Quasi azeotropic mixture refrigerant HFC units Units using new refrigerants HCFC units Refrigerant name R 407C R 410A R 22 21 2 oft Cae HEC of and JFC 125 alle 3 2 MPa gauge pressure 4 0 MPa gauge pressure 2 75MPa gauge pressure Design pressure 32 6 kgf cm 40 8 kgf cm 28 0 kgf cm 464 psi 580 psi 399 psi Refrigerant oil Synthetic oil Ether Mineral oil Suniso k 0 05 Combustibility None None None Toxicity None None None 1 Non azeotropic mixture refrigerant mixture of two or more refrigerants having different boiling points 2 Quasi azeotropic mixture refrigerant mixture of two or more refrigerants having similar boiling points 3 The design pressure is different at each product Please refer to the installation manual for each product Reference 1 10 19716 kgf cm 1 145 psi HFC 32 125 50 50 Y 7 S7 S SV NEAN lt YES e S o WLS K 10 0 Das 20 0
168. Psi switch Pressure protection Low pressure sensor S1NPL OFF 10 15Psi Fusible plug Open 158 167 F Discharge gas temperature protection R3T OFF 275 F Temperature Discharge pipe thermistor protection Inverter fin temperature protection R1T OFF 188 6 F Radiator fin thermistor board Others Fuse F2U 250V AC 10A Class B For cooling fan motor F3U 250V AC 5A Class B 272 Appendix SiUS30 604 List of Electrical and Functional Parts 3 2 Indoor Side 3 2 1 Indoor Unit Model Parts Name Symbol FXFQ FXFQ FXFQ FXFQ FXFQ Remark 12MVJU 18MVJU 24MVJU 30MVJU 36MVJU Wired Remote Remote Controller BRC1C71 Controller i Option Wireless Remote BRC7C812 Controller 1045W 6P 1090W 6P Fan Motor M1F Thermal Protector 266 F OFF 176 Motors Capacitor fan motor C1 3 5uF 450VAC 5 0uF 450VAC PLD 12230DM Drain Pump MIP Thermal Fuse 293 F Swing Motor M1S MP35HCA 3P007482 1 2 ST8601A 1 04 L250 Thermistor Suction Air R1T 20 77 F Thermistor for Heat ST8605 3 8 L630 Thermistors Exchanger High Temp 20 77 F Thermistor Heat R2T ST8602A 3 6 L630 Exchanger 20kQ 77 F Float Switch S1L FS 0211 Others Fuse F1U 250V 5A 5 2 Transformer TIR TR25H25R0 Model Parts Name Symbol FXDQ FXDQ FXDQ FXDQ FXDQ Remark 07MVJU 09MVJU 12MVJU 18MVJU 2
169. Replace the outside unit outside control adaptor replacement Replace the outside unit PC board A1P V2824 Troubleshooting 217 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 44 Us Malfunction of Transmission between Master Slave Remote Controllers Remote ua Controller Display Applicable All models of indoor units Models Method of In case of controlling with 2 remote controller check the system using microcomputer if signal Malfunction transmission between indoor unit and remote controller main and sub is normal Detection Malfunction Normal transmission does not continue for specified period Decision Conditions Supposed m Malfunction of transmission between main and sub remote controller Causes Connection between sub remote controllers m Defect of remote controller PC board Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred SS1 Of remote controller PC boards is set to MAIN Using 2 remote controllers control Set 551 to MAIN the power supply off once and then back on SS1 of both remote controllers is set to SUB gt Turn the power off and then back on If a malfunction occurs replace the remote controller PC board gt Set one remote controller to MAIN the power supply off once and then back on
170. Suction pipe temperature detected with the thermistor R5T F Te Low pressure equivalent saturation temperature Function 67 Normal Control SiUS30 604 5 3 Heat Exchange Mode in Heating Operation or Simultaneous Cooling Heating Operation In heating or simultaneous cooling heating operation a target condensing and evaporating temperature can be secured by switching the water heat exchanger of the outside unit into evaporator or condenser with load One outside unit installation Two outside units installat AGR gt 0 Four way changeover valve for heat exchanger Y7S For the application of heat exchanger Content of the control of electronic expansion valve Y1E OFF Condenser Control of heat exchange capacity balance application of heat exchanger AGR gt 0 lt 0 Master unit Four way changeover valve for ON heat exchanger Y7S For the Evaporator Content of the control of electronic expansion valve Y1E Control of heat exchange capacity balance ion Note 1 AGR Target of heat exchange capacity balance Actual measurement of heat balance D AGR gt 0 Insufficient evaporation Excessive condensation 2 AGR O Insufficient condensation Excessive evaporation 2 Control of heat exchange capacity balance Control the electronic expansion valve so that Te or Tc will obtain the target value Master unit Slave unit 1 Four way chang
171. TECTOR MIF HERMISTOR AIR HERMISTOR COIL 1 HERMISTOR COIL 2 FLOAT SWITC 1 RANSF RMER 208 230V 25V 1TR PHASE CONTROL CIRC ERMINAL BLOCK ERMINAL BLOCK ELECTRONIC EXPANSTON VALV NOISE FILTER FERRITE CORE RED REMOTE CONTROLLE RiT THERMISTOR ATR Ss1 SELEC CH MAIN SUB CONNECTOR FOR OPTIONAL PARTS X16A CONNECTOR ADAPTOR FOR WIRING X18A CONNECTOR WIRING ADAPTOR FOR X ELECTRICAL APPENDICES POWER SUPPLY 208 230 60Hz EDDED L1 gt gt H Fonn t Z1C NOTES 1 TERMINAL 72 59 CONNECTOR 2 FIELD WIRING CONTROL 3 IN CASE USING CENTRAL REMOTE CONTROLLE 4 REMOTE CONTROLLER MODEL VA 5 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE IN DETAILS REFER TO THE INSTALLATION MANUAL A 6 SYMBOLS SHOW AS FOLLOWS RED RED BLK BLACK W BOX CONNEC PATATE 3 i WIRING CENTRAL CONTROLLER ORG J NOTE 3 BLU P2 BLKJPT py aL X2M L17RED L2I BL
172. UNF20 is necessary for mouthpiece size of charge hose W Copper tube material and thickness O Soft Annealed H Hard Drawn R 407C R 410A Pipe size Material Thickness Material Thickness mm mm 96 4 0 8 0 8 9 5 0 8 0 8 12 7 0 8 0 8 15 9 1 0 1 0 19 1 1 0 1 2 1 0 22 2 1 2H 1 0 1 2H 1 0 25 4 1 2H 1 0 1 2H 1 0 28 6 1 2H 1 0 1 2H 1 0 31 8 1 2H 1 2 1 2H 1 1 38 1 1 2H 1 4 1 2H 1 4 44 5 1 2H 1 6 1 2H 1 6 286 Precautions for New Refrigerant R 410A SiUS30 604 Precautions for New Refrigerant R 410A 1 Flaring tool Flare gauge 1 0 TASCO JAPAN CO cy W Specifications Dimension A Unit mm Tube O D 04 Nominal size Do Class 2 R 410A Class 1 Conventional 1 4 6 35 9 1 9 0 3 8 9 52 13 2 13 0 1 2 12 70 16 6 16 2 5 8 15 88 19 7 19 4 3 4 19 05 24 0 23 3 m Differences Change of dimension A Dimension A For class 1 R 407C For class 2 R 410A Conventional flaring tools can be used when the work process is changed change of work process Previously a pipe extension margin of 0 to 0 5mm was provided for flaring For R 410A air conditioners perform pipe flaring with a pipe extension margin of 1 0 to 1 5mm For clutch type only Conventional tool with pipe extension margin adjustment can be used Precautions for New Refrigerant R 410A
173. When occurring 4 times within 60 min the malfunction code E4 is output Less than 3 times within 60 min 72 Function SiUS30 604 Protection Control 6 3 Discharge Pipe Protection Control This discharge pipe protection control is used to protect the compressor internal temperature against a malfunction or transient increase of discharge pipe temperature Discharge pipe protection control is carried out in each outside unit INV compressor Normal operation HTdi Value of INV compressor discharge pipe temperature Tdi compensated with outdoor air temperature HTdi gt 239 F HTdi lt 212 F Y HTdi 230 F gt Compressor upper limit down 1 step 30 sec Compressor upper limit up 1 step 20 sec HTdi gt 239 F HTdi gt 266 HTdi gt 248 F for 5 min Compressor 62Hz HTdi gt 275 F HTdi 248 F for 10 min or more Discharge pipe gt When occurring 3 times within 100 minutes Less than 2 times within temp control standby the malfunction code F3 is output 100 min Function 73 Protection Control SiUS30 604 6 4 Inverter Protection Control Inverter current protection control and inverter fin temperature control are performed to prevent tripping due to a malfunction or transient inverter overcurrent and fin temperature increase This control is carried out in each outside
174. _ fan M1 2F Indoor cooling unit expansion valve EV YE Indoor heating unit Indoor heating unit EV expansion valve BS NEA m 5 Heating BS 20RT 20RT Ending condition Same as normal heating operation 104 Hz OFF 74 Hz ON OFF Heat exchanger mode 2000 pulse 0 pulse ON 20S2 OFF 2000 pulse 20S2 ON 180 pulse 0 pulse ON ON Indoor unit control Thermostat off OFF Thermostat on Stop ON Normal control 320 pulse OFF 320 pulse ON OFF ON OFF OFF Max 2 min Max 4 min Normal control Indoor unit control Normal control OFF ON Max 3 min Function 77 Special Operation SiUS30 604 7 2 Oil Return Operation of Water Heat Exchanger Oil return operation of Water heat exchanger When the water heat exchanger is used as evaporator during heating or simultaneous cooling heating operation the operation that the oil accumulated in the water heat exchanger is returned to compressor is conducted IN condition After a certain continuous period of time has passed under the following conditions oil return ope amp Water heat excha ration starts 2052 1 Water heat exchanger is an evaporator e Tg Te gt 18 F e Elapse of a certain period of time nger oil return control Parts name Compressor 4 way valve Main 2051 Y5S ON 4 way valve
175. al M1 2F cooling operation Indoor heating unit expansion valve BS 20RT 20RT Ending condition 15 During oil return operation 104 Hz After oil return operation 52 Hz OFF OFF 2000 pulse 0 pulse ON OFF OFF 2000 pulse 0 pulse ON ON Thermostat on Stop Indoor unit control Thermostat off OFF 200 pls Thermostat ON Indoor unit control Stop thermostat off Normal control Normal control OFF OFF 20 sec Max 3 min Max 3 min Max 3min 30sec 76 Function SiUS30 604 Special Operation 7 1 2 Oil Return Operation in Heating or Cooling Heating simultaneous Operation Starting conditions Start oil return operation in heating operation referring to the following conditions Cumulative compressor operating time after power supply turns on exceeds 2 hours and the time after the completion of previous oil return operation exceeds 8 hours And cumulative oil return is calculated based on Tc Te compressor load Heating amp Cooling heating simultaneous operation oil return Electrical During oil return After oil return Compressor Main heat exchanger electronic expansion valve Sub cooling electronic expansion valave Y2S Receiver gas charging solenoid SVL Y3S valve Receiver gas discharge solenoid SVG 45 valve Liquid pipe stop SVSL Y6S solenoid valve Indoor cooling unit _
176. al Refrigerant Charge Amount Check on amount of additional refrigerant charge lt Check on stop valves opening Check to make sure the all stop valves on outside units are open M V3055 1 1 2 Turn Power On Turn outside unit indoor unit O Be sure to turn the power on 6 hours before starting operation to BS unit and heat source water protect compressors to power on clankcase heater pump power on Confirm LED display on O Make sure the display is normal outside unit s PCB Following table shows correct display Carry out field setting on O For field settings refer to Field Settings on and after P110 outside unit PC board After the completion of field settings set to Setting mode 1 In case of multi outside unit connection carry out the field settings on master unit The setting on slave unit is not effective V3056 94 Test Operation SiUS30 604 Test Operation OON e OFF 0 Blink Micro CH selection 1 computer EST OW p Multi LED display Factory set norma MOVE TRS IND Master Slave noise Demand Mutti monitor HIP H2P 5 H6P 1 outside unit installation 9 outside unit master 9 e e e e multi slave1 9 9 installation sis es 9 e e e e e e e e The
177. alve 20RT For liquid pipe Super cools liquid refrigerant in the heating operation unit during cooling heating simultaneous operation in order to prevent capacity reducing in cooling operation unit caused by flash gas generated in the liquid pipe B Y3S Solenoid valve 20RH Used to changeover the cooling and heating operation of indoor units Capillary tube Suction g s piping Fitting port 2 7 gas piping Discharge Fitting port gas piping Fitting port Three way valv 2 gt Check Capillary tube T liquid piping liquid pipi iquid piping Fitting port Solenoid Filter valve Petting pant 40045338 40 Refrigerant Circuit SiUS30 604 Functional Parts Layout 2 Functional Parts Layout 21 RWEYQ60MTJU RWEYQ72MTJU RWEYQ84MTJU 2 1 14 Functional Parts Layout Solenoid Valve etc Electronic expansion valve Solenoid valve Y3S Solenoid valve 65 Stop valve Liquid side Stop valve Discharge gas side Stop valve Suction gas side Electronic expansion valve Y1E Solenoid valve 25 Plate heat exch assy Receiver Low pressure sensor e S1NPL 4way Valve 2051 Y5S Away Valve 2052 Y7S High Pressure Sensor S1NPH Gauge port High Pressure Switch S1PH Solenoid valve Y1S Oil separator Compressor Refrigerant Circuit 41
178. ance P Rejection 19 Central remote controller When ON OFF temperature setting and operation mode settin by local remote controller is forbidden UNDER CENTRAL CONTROL is displayed on the remote controller V1408 C 8P171361 1 Test Operation 109 Field Setting SiUS30 604 3 2 Field Setting from Outside Unit 3 2 1 Field Setting from Outside Unit m Setting by dip switches The following field settings are made by dip switches on PC board Dipswitch e Setting item No Setting Factory sat Coolant 0882 88 con enter by remote controler DS1 2 ON DS1 4 OFF Factory set Not used Do not change the factory settings DS2 1 Not used Do not change the factory settings 4 OFF Factory set DS3 1 Not used Do not change the factory settings 2 OFF Factory set N Caution DIP switch Setting after changing the main P C Board A1P to spare parts P C B When you change the main P C Board A1P to spare parts P C B please carry out the following setting ON ON 1234 DS1 DIP Switch Detail DS No Item DS1 1 DS1 2 Domestic Overseas Domestic Japan 200V Mainly for domestic Japan Setting OFF Overseas 400V Mainly for overseas DS1 3 DS1 4 __ DS2 1 Domestic Overseas ON Overseas setting OFF Domestic Japan DS2 2
179. and add an adequate amount of refrigerant 07 If an outside unit multi terminal is connected when Remove the line from the outside multi terminals Q1 UF there is one outside unit installed and Q2 UF The operation mode on the remote controller was Set the operation mode on all indoor unit remote 4 changed before the check operation controllers to cooling HJ The heat source water is not circulating Make sure that the water pump is running 1 1 4 Confirmation on Normal Operation Conduct normal unit operation after the check operation has been completed 1 Confirm that the indoor outdoor units can be operated normally When an abnormal noise due to liquid compression by the compressor can be heard stop the unit immediately and turn on the crankcase heater to heat up it sufficiently then start operation again 2 Operate indoor unit one by one to check that the corresponding outside unit operates 3 Confirm that the indoor unit discharges cold air or warm air 4 Operate the air direction control button and flow rate control button to check the function of the devices not operate lt Precautions for checking normal operation e Fora period of approximately 5 minutes after the compressor stops even if the ON OFF button for the indoor units in one and the same system is pressed the compressor will After stopping the compressor operation using the remote controller the outside unit may conduct the
180. ating operation refrigerant for cooling Efficiency efficiency improves the more simultaneous operation is performed The first stage Between indoor units Heat transfer The second stage Between VRV WII units Heat radiation operation all cooling operation i Cooling tower Closed type boiler A Heat 1 TEES n 1 rejected 2 A 2 02 cooling cooling cooling cooling VRV WII Heat radiation tendency t i heat recovery operation mainly cooling Heat rejected cooling cooling cooling part heating operation to loop Heat rejected 2 S PY PY LAA to loop cooling cooling cooling heating VRV WII Heat recovery operation cooling and heating operation RER
181. ation Drain Paper pattern for installation Drain Standard Accessories hose Clamp metal Washers Sealing hose Clamp metal Washers Sealing hose Clamp metal Washers Sealing pads Clamps Screws Insulation for pads Clamps Screws Insulation for pads Clamps Screws Insulation for itting itting itting Drawing No C 3D042686 Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping length 25ft Horizontal 2 Nominal heating capacities are based on the following conditions Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping length 25ft Horizontal 3 Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat 4 Anechoic chamber conversion value measured under JISB8616 conditions During actual operation these values are normally somewhat higher as a result of installation conditions 24 Specifications SiUS30 604 Specifications Ceiling Mounted Cassette Type Multi Flow Model FXFQ30MVJU FXFQ36MVJU 1 Cooling Capacity Btu h 30 000 36 000 Heating Capacity Btu h 34 000 40 000 Casing Color Galvanized Steel Plate Galvanized Steel Plate Dimensions HxWxD in 11 3 8x 33 1 8 x 33 1 8 11 3 8x 33 1 8 x 33 1 8 Coil Cross RowsxStagesxFPI 2x12x17 2x12x17 Fin Coil Face Area ft 5 35
182. ation may not have been carried out successfully V2830 Note Test operation may not be successful if carried out after the outside unit has been off for more than 12 hours or if it is not carried out after running all connected indoor units in the fan mode for at least an hour 226 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 50 u Malfunction of System Refrigerant System Address Undefined Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes UH All models of indoor units RWEYQ60 72 84MTJU Detect an indoor unit with no auto address setting The malfunction decision is made as soon as the abnormality aforementioned is detected W Improper connection of transmission wiring between outside unit and outside unit outside control adaptor W Defect of indoor unit PC board W Defect of outside unit PC board A1P Troubleshooting 227 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is electricity being introduce for the first time after installation or after an indoor or outside unit PC board has been a malfunction occur even after 12 minutes elapses from the time when
183. c Expansion Valve Electronic Expansion Valve Connectable outdoor unit R 410A Series R 410A Series Operation Manual Installation Manual Paper Pattern for Operation Manual Installation Manual Paper Pattern for Standard Accessories Installation Drain Hose Clamp Metal Insulation for Fitting Installation Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Washers Conduit Mounting Sealing Pads Clamps Screws Washers Conduit Mounting Plate Insulation Tube Plate Insulation Tube Drawing No C 3D051780A Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping length 25ft Horizontal 2 Nominal heating capacities are based on the following conditions Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping length 25ft Horizontal 3 Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat High static pressure Standard 5 External static pressure is changeable to change over the connectors inside electrical box this pressure means Anechoic chamber conversion value measured under JISB8616 conditions During actual operation these values are normally somewhat higher as a result of installation conditions Specifications 27 Specifications SiUS30 604 Ceiling Mounted Built
184. cation of any local legislation Ask a qualified installer or contractor to install this product Do not try to install the product yourself Improper installation can result in water or refrigerant leakage electrical shock fire or explosion Use only those parts and accessories supplied or specified by Daikin Ask a qualified installer or contractor to install those parts and accessories Use of unauthorized parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage electrical shock fire or explosion e Read the User s Manual carefully before using this product The User s Manual provides important safety instructions and warnings Be sure to follow these instructions and warnings If you have any inquiries please contact your local importer distributor and or retailer TERTE W LISTED 2004 Daikin Industries Limited Daikin Daikin Absolute Comfort VRV and REFNET are trademarks pending or registered trademarks of Daikin Industries Limited All rights reserved LonWorks and are registered trademarks of Echelon Corporation BACnet is a Data Communication Protocol for Building Automation and Control Networks developed under the auspices of the American Society of Heating Refrigerating and Air Conditioning Engineers ASHRAE About ISO 9001 About ISO 14001 ISO 9001 is
185. circuit L8 9 9 9 Inverter current abnormal 198 L9 9 9 9 Inverter start up error 200 LA 9 9 9 Malfunction of power unit LC 9 9 9 Malfunction of transmission between inverter and control 201 PC board P1 9 9 9 Inverter over ripple protection 203 P4 9 9 9 Malfunction of inverter radiating fin temperature rise 205 sensor PJ 9 9 9 Faulty field setting after replacing main PC board orfaulty 206 combination of PC board 148 Troubleshooting SiUS30 604 Troubleshooting by Remote Controller Malfunction Operation Inspection Unit No Malfunction contents Page code lamp display Referred System UO 9 Low pressure drop due to refrigerant shortage or 207 electronic expansion valve failure U1 9 9 9 Reverse phase open phase 209 U2 9 9 9 Power supply insufficient or instantaneous failure 210 U3 9 9 9 Check operation is not conducted 212 U4 9 9 9 Malfunction of transmission between indoor and outside 213 units U5 9 9 9 Malfunction of transmission between remote controller 215 and indoor unit U5 Failure of remote controller PC board or setting during 215 control by remote controller U7 9 9 9 Malfunction of transmission between outside units 216 U8 9 9 Malfunction of transmission between master and slave 218 remote controllers malfunction of slave remote controller U9 9 9 9 Malfunction of transmission between indoor unit and 219 outside
186. city Btu h 12 000 18 000 24 000 x2 Heating Capacity Btu h 13 500 20 000 27 000 Casing Color Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Dimensions HxWxD in 24 42 1 8 8 5 8 24 53 1 8 8 5 8 24x53 1 8x8 5 8 Coil Cross RowsxStagesxFPI 3 14 17 3 14 17 3 14 17 Fin Coil Face Area ft 2 15 3 04 3 04 Model 2D14B13 2D14B20 2D14B20 Type Sirocco Fan Sirocco Fan Sirocco Fan Fan Motor Output HP 0 034 0 047 0 047 Air Flow Rate H L cfm 280 210 490 380 560 420 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Glass Fiber Urethane Foam Glass Fiber Urethane Foam Glass Fiber Urethane Foam Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mold Resistant m Liquid Pipes in 1 4 Flare Connection 1 4 Flare Connection 3 8 Flare Connection POI Gas Pipes in 91 2 Flare Connection 91 2 Flare Connection 95 8 Flare Connection Drain Pipe in 627 32 Vinyl Chloride 627 32 Vinyl Chloride 27 32 Vinyl Chloride Machine Weight Mass Lbs 66 80 80 4 Sound Level dBA 36 40 41 Safety Devices Fuse Thermal Protector for Fan Motor Fuse Thermal Protector f
187. control is applied to keep the outlet superheated degree of sub cooling heat G Subcool EV3 valve exchanger constant Used to prevent the low pressure from transient falling H 15 Solenoid valve Hot gas SVP Solenoid valve Oil return of water Used to collect the refrigerant oil from water heat exchanger Y28 heat exchanger SVE Used to maintain high pressure while in cooling operation at low water J Y3S Solenoid vale Receiver gas temperature And also used to prevent the accumulation of refrigerant in non charging SVL operating outside units in the case of multiple outside unit system Solenoid valve Receiver gas Used to collect refrigerant to receiver K Y4S discharging SVG 4 way selector valve Changes the operation into cooling heating or simultaneous cooling heating M 55 Main 2051 operation Used to prevent the accumulation of refrigerant in non operating outside units in 65 E unit the case of multiple outside unit system 4 way selector valve Changes the water heat exchanger into condenser or evaporator 78 Sub 2052 Used to detect high pressure Q S1NPH High pressure sensor Used to detect low pressure R S2NPL Low pressure sensor HP pressure switch In order to prevent the increase of high pressure when a malfunction occurs this 1PH Switch is activated at high pressure of 580psi or more to stop the compressor S S For INV compressor operation gnp P p P In order to
188. control of Control of heat exchange Control of heat exchange 0 pulse electronic expansion valve capacity balance capacity balance AGR gt 0 AGR lt 0 Master unit Slave unit 1 Slave unit 2 Four way changeover valve for heat exchanger Y7S For the ON ON application of heat exchanger Condenser Evaporator Evaporator Content of the control of electronic expansion valve Y1E Control of heat exchange capacity balance Control of heat exchange capacity balance Control of heat exchange capacity balance Note 1 AGR Target of heat exchange capacity balance Actual measurement of heat balance D AGR gt 0 Insufficient evaporation Excessive condensation 2 AGR O Insufficient condensation Excessive evaporation 2 Control of heat exchange capacity balance Control the electronic expansion valve so that Te or Tc will obtain the target value AGR 0 Master unit Slave unit 1 Slave unit 2 Four way changeover valve for heat exchanger Y7S For the ON OFF OFF application of heat exchanger Evaporator Condenser Condenser Content of the control of Control of heat exchange electronic expansion valve Y1E capacity balance 0 pulse AGR gt 0 R lt 0 Master unit Slave unit 1 Slave unit 2 Four way changeover valve for heat exchanger Y7S For the ON ON ON application of heat exchanger Evaporator Evaporator Evaporator Content of the contro
189. creases depending on operating states Specifications 21 Specifications SiUS30 604 Model Name Combination Unit RWEYQ252MTJU Model Name Combination Unit RWEYQ84MTJU RWEYQ84MTJU RWEYQ84MTJU 1 Cooling Capacity Btu h 252 000 2 Heating Capacity Btu h 283 500 Casing Color Ivory White 5Y7 5 1 Dimensions HxWxD in 39 3 8x30 3 4x21 11 16 x3 Heat Exchanger Stainless Steel Plate Type Type Hermetically Sealed Scroll Type Piston Displacement m h 13 66x3 Comp Number of Revolutions r p m 6 450x3 Motor OutputxNurnber kW 4 0x3 Starting Method Soft Start Liquid Pipe in 3 4 in C1220T Flare Connection Main Line Suction Gas Pipe in 1 3 4 in C1220T Brazing Connection x3 Main Line Connecting Discharge Gas Pipe in 4 1 1 8 in C1220T x5 1 3 8 in C1220T Brazing Connection Main Line Pipes Water inlet 1 1 4 FPT Female Thread Water outlet 1 1 4 FPT Female Thread Drain outlet 1 2 FPS Female Thread Machine Weight Mass Lbs 330 330 330 Safety Devices High Pressure Switch Inverter Overload Protector Fusible Plugs Capacity Control 90 8 100 Refrigerant Name 410 Refrigerant Charge Lbs 11 5 11 5 11 5 Control Electronic Expansion Valve Refrigerator Oil Synthetic Ether Oil Standard Accessories Installation Manual Operation Manual Connection Pipes Clamps Strainer Conduit Mounting Plate Drawing No 4D054576C Notes 1 x1 Ind
190. creases in heating Cooling No changes within the range where the receiver is capable of absorbing High pressure 1 Step down control Reaches the High pressure Low pressure Frequency Heating Maintains certain Nlevel of low pressure 1 Gradually rises as the frequency increases In order to maintain low pressure frequency rises due to capacity control No changes within the range where the receiver is capable of absorbing Reaches the lowest frequency lowest frequency 1 I Subcooling increases Liquid connecting pipe 1 temperature drops I k 1 I 1 Low pressure rises due to decreased compressor output Outside unit electronic expansion valve opens due to overload control 1 Maintains a certain level of high pressure High pressure Low pressure Frequency In order to maintain high Low pressure rises due to decreased frequency pressure frequency decreases due to capacity control 1 High pressure drops immediately after overload control however high pressure rises again Low pressure drops because the outside unit electronic expansion valve is closed Low pressure protection activates hot gas bypass In fact low pressure hunting Degree of excessive charging Adequate level Increase in the degree of excessive
191. cuum pump __ lines represent onsite piping Additional refrigerant charge procedure 2 by Additional refrigerant charge operation To learn the system settings for additional refrigerant charging refer to the Service Precaution label attached on the back of the electric box lid in the outside unit 1 2 Fully open all stop valves valve A and valve B must be left fully closed After ten minutes fully close liquid line stop valve and then open the valve by turning 180 Start the additional refrigerant charge operation See Service precautions Label for detail If it is difficult to charge the refrigerant additionally decrease the water temperature or warm the refrigerant tank Warm the refrigerant tank with a stupe or a warm hot water of 104 F or less After the system is charged with a specified amount of refrigerant press the RETURN button 53 on the PC board A1P in the outside unit to stop the additional refrigerant charge operation Immediately open both liquid side and gas side stop valve If do not open the stop valve immediately liquid seal may cause the pipe to burst If the refrigerant cylinder is siphonal set it upright while charging additional refrigerant Stop valve operation procedure Do not open the shutoff valve until Checking of device and installation conditions are completed If the stop valve is left open without turning on power it may cause refrigerant to buildup
192. d Changes target value of power consumption when demand 30 Demand setting 1 control 1 is input Normally enables demand control 1 without external input 32 Normal demand Effective to prevent a problem that circuit breaker of small setting capacity is shut down due to large load Push the RETURN button BS3 and set to the initial status of Setting mode 2 f you become unsure of how to proceed push the MODE button BS1 and return to setting mode 1 V2764 Test Operation 113 Field Setting SiUS30 604 No Setting item Description 38 Emergency operation Setting for the master unit operation prohibition in multi outside unit system 39 Emergency operation Setting for the slave unit 1 operation prohibition in multi outside unit system 40 Emergency operation Setting for the slave unit 2 operation prohibition in multi outside unit system Used to temporarily prohibit the applicable outside unit from operating should there be any faulty part in multi outside unit system Since the comfortable environment is extremely impaired prompt replacement of the part is required 114 Test Operation SiUS30 604 Field Setting Setting item display No MODE TEST C H selection Lau nokel Demand Setting condition display et
193. d The electronic expansion valve is NO connected to X7A of the gt After connecting turn the power indoor unit PC supply off and then back on board Normal when coil check 1 of the moving part of the electronic expansion valve is checked NO gt Replace the moving part of the electronic expansion valve The connecting YES cable is short circuited or Replace the connecting cable disconnected gt f you turn the power supply off and turn on again and it still does not help replace the indoor unit PC board V2781 164 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 1 Coil check method for the moving part of the electronic expansion valve Discount the electronic expansion valve from the PC board and check the continuity between the connector pins Normal Pin No 1 White 2 Yellow 3 Orange 4 Blue 5 Red 6 Brown 1 White x _ 3000 1500 2 Yellow 5 5 Approx 3000 1500 3 Orange x o i Approx 1500 4 E 5 1500 5 Red 6 Brown O Continuity x No continuity 1 White O White 1 2 Yellow Red 5 3 3 C Orange 3 4 Blue C 02 4 Yellow Brown Blue 9 Red O 2 9 4 6 Brown O Troubleshooting Troubleshooting by Indication on the Remote
194. d Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Glass Fiber Glass Fiber Glass Fiber Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mold Resistant Liquid Pipes in 3 8 Flare Connection 3 8 Flare Connection 93 8 Flare Connection Piping Gas Pipes in 5 8 Flare Connection 5 8 Flare Connection 95 8 Flare Connection ll m VP25 7 25 7 VP25 rain n External Dia 1 1 4 Internal Dia 1 External Dia 1 1 4 Internal Dia 1 External Dia 1 1 4 Internal Dia 1 Machine Weight Mass Lbs 119 119 122 5 Sound Level H L dBA 45 39 45 39 48 43 Safety Devices Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve Connectable outdoor unit R 410A Series R 410A Series R 410A Series BYBS125DJW1 BYBS125DJW1 BYBS125DJW1 Decoration Panel Color White 10Y9 0 5 White 10Y9 0 5 White 10Y9 0 5 Option Dimensions HxWxD in 2 1 8 x 59 x 19 5 8 2 1 8 x 59 x 19 5 8 2 1 8 x59 x 19 5 8 Weight Lbs 14 14 14 Standard Accessories Operation Manual Installation Manual Paper Pattern for Installation Drain Hose Clamp Metal Insulation for Fi
195. d refrigerant from the service port of liquid stop value The additional charging operation is activated by pushbutton switch on the outside unit PC board Additional refrigerant charge total flow STEP 1 Additional charge without Compressor operation Confirm DISCHARGE SUCTION and LIQUID Stop valves closed Turn off the power Charge through Service port of LIQ Stop valve YES Is all refrigerant charged STEP 2 Additional charge with Compressor operation gt Open DISCHARGE amp SUCTION GAS Stop valve LIQUID side stop valve 1 Fully open the liquid side stop valve 2 After ten minutes fully close liquid line stop valve and then open the valve by turning 180 Note The stop valve operations are different from heat pump and heat recovery connection refer following page for detail Start additional refrigerant charge mode Setting Mode 2 Refer operation procedure detail on next page Is all refrigerant charged Open DISCHARGE GAS LIQUID SUCTION GAS Stop valve Disconnect charge hose END of charge method Open LIQUID Stop valve STOP refrigerant charge model V2892 Test Operation 129 Field Setting SiUS30 604 N Caution Refrigerant cannot be charged until field wiring has been completed Refrigerant may only be charged after performing the leak test and the vacuum dr
196. d valve e i Indoor unit ZZ Check valve ZF Check valve ZZ A Check valve ON OFF control b nit ON OFF control raiter ON OFF control b rainer receiver pressurorising receiver pressurerising Staite receiver pressurerising contro EM control 1 1 m Gauge port Gauge port z Gauge port _ gt TON V connection conection 174 flare connection i i cine a Filter 3 ANHBENPH High pressure Filter I NH Bewen High pressure Filter High pressure Sensor t sensor sensor i i 4 HPS High pressure HPS High pressure HPS High pressure switch switch switch Capillary Y Capillary 57 Capillary aud LM fo LM og LN eni Low pressure Gauge port Compressor Low pressure Z cave port Low pressure 2 avg port Compressor Sensor connection 1NV vate sensor tare connection ENV un Sensor connection ENV Electronic uU are comectio uU W n expansion valve Filter Filter Filter Solenoid valve 59 L Filter e V 1 Indoor unit Thermostat ON T lt lt p lt lt Refrigerant Circuit 49 Refrigerant Flow for Each Operation Mode SiUS30 604 B Heating and simultaneous cooling heating operation mode When the outdoor water cooled heat exchangers are used only as condenser To other indoor units
197. de units are fully opened H2P turns to display TEST OPERATION blinks TEST OPERATION and IN CENTRALIZED CONTROL are displayed on the remote controller and the operation is prohibited Collect the refrigerant using a refrigerant recovery unit See the instruction attached to the refrigerant recovery unit for more detal Press Mode button BS1 once and reset Setting Mode 2 3 2 7 Setting of Vacuuming Mode In order to perform vacuuming operation at site fully open the expansion valves of indoor and outside units to turn on some solenoid valves Operating procedure With Setting Mode 2 while the unit stops set B Refrigerant recovery Vacuuming mode to ON The expansion valves of indoor and outside units fully open and some of solenoid valves open H2P blinks to indicate the test operation and the remote controller displays Test Operation and In Centralized control thus prohibiting operation After setting do not cancel Setting Mode 2 until completion of Vacuuming operation Q Use the vacuum pump to perform vacuuming operation G Press Mode button BS1 once and reset Setting Mode 2 Test Operation 133 Field Setting SiUS30 604 3 2 8 Check Operation To prevent any trouble in the period of installation at site the system is provided with a test operation mode enabling check for incorrect wiring stop valve left in closed coming out or misplacing with suction pipe thermistor of disc
198. dication on the Remote Controller SiUS30 604 2 40 U3 Check Operation not Executed Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting uz RWEYQ60 72 84MTJU Check operation is executed or not Malfunction is decided when the unit starts operation without check operation W Check operation is not executed N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Has the check operation NO performed on Outside gt Press the 54 on P C board on unit P C B the master outside unit for 5 seconds or more to execute check YES operation gt Replace the main P C board on the outside unit V3052 212 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 41 Malfunction of Transmission between Indoor Units Remote uy Controller Display Applicable All model of indoor unit Models RWEYQ60 72 8AMTJU Method of Microcomputer checks if transmission between indoor and outside units is normal Malfunction Detection Malfunction When transmission is not carried out normally for a certain amount of time Decision Conditions Supposed W Indoor to outdoor outside to outside unit transmission wiring F1 F2 disconnection short circuit Causes or wrong wiring W Outside u
199. duct a test operation to ensure that the equipment operates normally and explain the cautions for operating the product to the customer Caution in Repair A Warning Be sure to disconnect the power cable plug from the plug socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shock If itis necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the discharging refrigerant gas The refrigerant gas can cause frostbite When disconnecting the suction or discharge pipe of the compressor at the welded section release the refrigerant gas completely at a well ventilated place first If there is a gas remaining inside the compressor the refrigerant gas or refrigerating machine oil discharges when the pipe is disconnected and it can cause injury If the refrigerant gas leaks during the repair work ventilate the area The refrigerant gas can generate toxic gases when it contacts flames The step up capacitor supplies high voltage electricity to the electrical components of the outside unit Be sure to discharge the capacitor completely before conducting repair work A charged capacitor can cause an electrical shock Do not start or stop the air conditioner o
200. due to malfunction the remote controller s operation LED blinks and malfunction code is displayed Even if stop operation is carried out malfunction contents are displayed when the inspection mode is entered The malfunction code enables you to tell what kind of malfunction caused operation to stop See page 148 for malfunction code and malfunction contents Explanation Operation lamp Indoor unit No in which Inspection test button malfunction occurs Inspection display Malfunction code 51455 Troubleshooting 141 Troubleshooting by Remote Controller SiUS30 604 1 3 Self diagnosis by Wireless Remote Controller In the Case of If equipment stops due to a malfunction the operation indicating LED on the light reception section BRC7C Type flashes BRC7E Type The malfunction code can be determined by following the procedure described below The BRC4C Type malfunction code is displayed when an operation error has occurred In normal condition the malfunction code of the last problem is displayed 1 Press the INSPECTION TEST button to select Inspection The equipment enters the inspection mode The Unit indication lights and the Unit No display shows flashing O indication 2 Set the Unit No Press the UP or DOWN button and change the Unit No display until the buzzer 1 is generated from the indoor unit 1 Number of beeps 3 short beeps Conduct all of the following operations 1 sho
201. e 110 Part 6 Troubleshooting 137 1 2 Troubleshooting by Remote Controller 140 1 1 The INSPECTION 7 TEST Button a asr 140 1 2 Self diagnosis by Wired Remote Controller 141 1 3 Self diagnosis by Wireless Remote Controller 142 1 4 Operation of the Remote Controller s Inspection Test Operation Button 144 1 5 Remote Controller Service Mode a 145 1 6 Remote Controller Self Diagnosis Function 147 Troubleshooting by Indication on the Remote Controller 154 2 1 RD Indoor Unit Error of External Protection Device 154 22 AP Indoor Unit PC Board Defecl 155 2 3 AZ Indoor Unit Malfunction of Drain Level Control System S1L 156 2 4 AS Indoor Unit Fan Motor M1F Lock Overload 158 2 5 A Indoor Unit Malfunction of Swing Flap Motor MA 162 2 6 RS Indoor Unit Malfunction of Moving Part of Electronic Expansion Valve Y1E
202. e 2 C 1 1 ue4 1 Jebueyoxe L H Bullooo uolsuedx Sluono la edm fede Gre 2 1 1 uey 1 NOUS 1 Joopu sg anea pouopg Biani ener sou emo fen E aede sg Joopul Jeuio OL 45 Refrigerant Circuit SiUS30 604 Refrigerant Flow for Each Operation Mode B Heating and simultaneous cooling heating operation When the outdoor water cooled heat exchanger is used as condenser 1011334000 105591000 91155219 15 105095 aunssaid Hanas HN 10113000 3204 26109 gt 1 BALBA 10037 WIPE 105195 it A0 aqn 10 1010035 TII 330477 9 am ap 1294 ponens Y 3qnj INOJ edid pinbiq edid eBieuosiq edid uonong E E 5 2 E 1 V v WV AAA BAJRA 049105 1 BuisueunsseJd 1 1 q 44O NO B Ja 6411211631 31155914 aq 441902 N 191100 3210185 18104 991 TREPA 196104 ALBA 101910 BAJRA 31401
203. e Switch Pressure valve ilter regulating Solenoid valve Filter ager pipe k Heat excha t pipe Filter Fusible plus Electronic expansion valve Fi P E3 control Solenoid valv Electronic expansion valve Capillary tube Service Cour way valve Solenoid valve Check valve Filter Z Check valve Bine I Separatir Filter HPS tube Low pressure sensor Gauge port VU flare connection HHSENP CL inlet Plate heat exchanger e Water outlet Gauge port lare connection lt High pressure sensor High pressure switch Water Heat exchanger pipe Pressure regulating valve ilter Electronic expansion valve Solenoid valve Filter fusible P plug Electronic expansion valve Fi Water inlet Plate heat Solenoid valve exchanger control Z Capillary tube i Water outlet Service Solenoid valve Vut way valve Check valve valve Filter Solenoid Z check valve Ef strainer Gauge port Nt i a flare connection Separat r Filter NHSENPH High pressure Sensor HPS High pressure swi
204. e Control Blinks Repeats Single Blink Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes under host computer integrated control Repeats single blink Unified ON OFF controller Central remote controller Schedule timer Detect the malfunction according to DIII NET transmission data When the centralized controller which was connected once shows no response The control ranges are overlapped When multiple master central controller are present When the schedule timer is set to individual use mode other central controller is present When the wiring adaptor for electrical appendices is present Address duplication of central remote controller Improper combination of optional controllers for centralized control Connection of more than one master controller Malfunction of transmission between optional controllers for centralized control Defect of PC board of optional controllers for centralized control Troubleshooting 245 Troubleshooting OP Unified ON OFF Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Has a once connected optional controller for centralized control been disconnected or its address changed YES gt Reset power supply simultaneously for all opti
205. e Suction Gas Pipes 5 8 Flare Connection x1 5 8 Flare Connection Discharge Gas Pipes 1 2 Flare Connection x1 1 2 Flare Connection Machine Weight Mass Lbs 18 18 Standard Accessories amaton Manual Attached Pipe Insulation pipe cover Installation Manual Insulation pipe cover Clamps Drawing No 4D045334 4D045339 Note 1 If the total capacity of all indoor units connected to the system is less than 24 000 Btu h connect the attached pipe to the field pipe Braze the connection between the attached pipe and field pipe Specifications 23 Specifications SiUS30 604 1 3 Indoor Units Ceiling Mounted Cassette Type Multi Flow Model FXFQ12MVJU FXFQ18MVJU FXFQ24MVJU 1 Cooling Capacity Btu h 12 000 18 000 24 000 Heating Capacity Btu h 13 500 20 000 27 000 Casing Color Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Dimensions HxWxD in 9 1 8 x 33 1 8 x 33 1 8 9 1 8 x 33 1 8 x 33 1 8 9 1 8 x 33 1 8 x 33 1 8 Coil Cross RowsxStagesxFPI 2x8x17 2x8x17 2x8x17 Fin Coil Face Area 13 3 56 3 56 3 56 QTS45B14M QTS45B14M QTS45B14M Type Turbo Fan Turbo Fan Turbo Fan Fan Motor Output HP 0 06 0 06 0 06 Air Flow Rate H L cfm 460 350 570 390 670 490 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microproce
206. e connection Bs unit ndoor unit n z 5 i PEE _ 222 5 High pressure High pressure gt High pressure W Heat exchange wen Sensor sensor sensor A S h 4 HPS High pressure i l P HPS High pressure HPS High pressure i switch switch switch m iex Capillary iex Capillary iex Capillary bou u g we g lenoid lenoid 21 meu ran oM SUR Low vea ae port Compressor ni low rend ae port Compressor Compressor ET low ae port Compressor Compressor Fuss sensor flare connection uU sensor 3 VE tare connection stop sensor flare connection stop oper valve Filter Filter Filter Sakae i Y lid TT AAA Indoor unit Thermostat ON lt lt lt lt Refrigerant Circuit 51 Refrigerant Flow for Each Operation Mode SiUS30 604 D Heating and simultaneous cooling heating operation mode When the outdoor water cooled heat exchangers are used only as evaporator To other indoor units Capllary tube Checkvane 5 Capillary tube we 2 1 Indoor unit 4 Fan ON Heat exchanger 1 T Electronic expansion valve Indoor unit
207. e of indoor and outside unit W Setting of outside P C board was not conducted after replacing to spare parts P C board Troubleshooting 221 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the outside P C board replaced YES to spare parts P C board The total of indoor units displaying UA and indoor units connected to the The refrigerant classification has not been set yet same refrigerant system is within connectable number of unit YES Push and hold the RESET button on the outside unit PC board for 5 seconds NO gt There are too many indoor units within the same refrigerant system Normal Does a malfunction occur Does the fefrigerant type of indoor NO and outside unit match gt Matches the refrigerant type of indoor and outside unit gt Replace outside unit PC board A1P V2827 The number of indoor units that can be connected to a single outside unit system depends on the type of outside unit 222 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 47 UC Address Duplication of Centralized Controller Remote Controller Display Applicable Models Method of Malfunction
208. eck valve Electronic d Check valve Electronic Indoor unit Thermostat ON expansion valve expansion valvel sla expansion valve 1 2 Capillary i i Solenoid valve Solenoid ET tube P Check valve Check valve Check valve 25 Es 1 1 i Water Water Water Bs unit ndoor unit 1 ER pa outlet DK sie outlet outlet por por rd Pressure Pressure Pressure p Heat exchanger regulating regulating regulating valve tube valve valve gt Four way valve tube Four valve tube Four valve tube Filter _ ilter Filter PS 2 22 E Cooling 5 amp lt c Indoor unit J 4 lenoid ia operation i Check waive Four way valve Solenoid valve une Solenoid valve way valve Electronic valve ma 1 pres expansion valve RL NI KI Coe I i Fite Solenoid vahe 69 Check Check L Filter Filter valve valve Indoor unit Thermostat OFF ZZ Check valve i 2 Check valve i ZZ Check valve ON OFF control by receiver pressurensing Was Bine rainer contro Gauge port Gauge port Gauge port TNI VAS flare connection MES CNG MA conection NES TON VIT Har
209. ected or wired gt Fix the wiring correctly incorrectly gt The PC board of one of the optional controllers for centralized control is defective Try turning on off using each optional controllers for centralized control and replace the PC board of the one that is unable to control the indoor unit V2833 Troubleshooting 231 Troubleshooting OP Central Remote Controller SiUS30 604 3 3 fA Improper Combination of Optional Controllers for Centralized Control Remote Controller Display Applicable Central remote controllerr Models Method of Detect the malfunction according to DIII NET transmission data Malfunction Detection Malfunction When the schedule timer is set to individual use mode other central component is present Decision When multiple master controller are present Conditions When the remote control adapter is present Supposed Improper combination of optional controllers for centralized control Causes m More than one master controller is connected W Defect of PC board of optional controller for centralized control 232 Troubleshooting SiUS30 604 Troubleshooting OP Central Remote Controller Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the wiring adaptor for YES electrical appendices connected Is a schedule timer YES connected
210. efore connect or disconnect connector Caution or parts damage may be occurred Wiring from the fan motor securely connected to connectors on the indoor unit PC NO gt Connect the wiring and turn on again Wiring between the indoor unit PC board and fan motor is disconnected YES gt Fix the wiring and turn on again YES Does the fan motor run gt Replace the indoor unit PC board NO gt Replace the fan motor V2779 158 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 96 Abnormal Indoor Fan Motor Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes H5 FXFQ FXAQ Detect abnormal fan rotation with the signal from the fan motor When fan rotation does not increase Disconnected short circuited fan motor harnesses or disconnected connectors Faulty fan motor Disconnection and insulation failure Abnormal signal from the fan motor Circuit breakdown Faulty PCB Instantaneous disturbance of power supply voltage Fan motor lock Caused by the motor or external factors Fan does not rotate because foreign particles are trapped in it Disconnected connector between PCBs A1P and A2P Troubleshooting Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to
211. electricity is introduced to indoor and outside units s indoor outside and outside outside unit transmission wiring normal gt After fixing incorrect wiring push and hold the RESET button on the master outside unit PC board for 5 seconds The unit will not run for up to After fixing incorrect wiring 12 minutes push and hold the RESET button on the outside unit PC board for 5 seconds Replace whichever is defective NO oes a malfunction occur gt Normal YES Does a UH malfunction occur NO for all indoor units in the system YES gt Replace indoor unit PC board Replace outside unit PC board A1P V2831 228 Troubleshooting SiUS30 604 Troubleshooting OP Central Remote Controller 3 Troubleshooting OP Central Remote Controller 3 1 m PC Board Defect Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting ni Central remote controller Detect an abnormality in the DIII NET polarity circuit When polarity and polarity are detected at the same time m Defect of central remote controller PC board Replace the central remote controller Troubleshooting 229 Troubleshooting OP Central Remote Controller SiUS30 604 3 2 Malfunction of Transmission between O
212. eover valve for heat exchanger Y7S For the OFF application of heat exchanger Condenser Condenser Content of the control of electronic expansion valve Y1E Control of heat exchange capacity balance Control of heat exchange capacity balance AGR gt 0 a AGR lt 0O Content of the control of electronic expansion valve Y1E Control of heat exchange capacity balance Master unit Slave unit 1 Four way changeover valve for heat exchanger Y7S For the OFF ON application of heat exchanger Condenser Evaporator application of heat exchanger AGR gt 0 lt 0 AGR lt 0 Master unit Slave unit 1 Four way changeover valve for OFF ON heat exch 79 For th eat exchanger Y7S For the Condenser Evaporator Content of the control of electronic expansion valve Y1E Control of heat exchange Control of heat exchange capacity balance capacity balance Four way changeover valve for heat exchanger Y7S For the application of heat exchanger Content of the control of electronic expansion valve Y1E Four way changeover valve for heat exchanger Y7S For the application of heat exchanger Content of the control of electronic expansion valve Y1E ON Evaporator Control of heat exchange capacity balance ON Evaporator Control of heat exchange capacity balance Slave unit 1 ON Evaporator AGR gt 0 AGR O Slave unit 1 ON Evaporator
213. er supply for all optional controllers for centralized control simultaneously Schedule timer and parallel interface cannot be used in combination Disconnect either the schedule timer or parallel interface and reset the power supply for simultaneously centralized control Disconnect the schedule timer s individual combined connector and reset the power supply for all optional controllers for centralized control simultaneously Arrange so that the connector for setting master controller is connected to one controller for centralized control and connected with the connector for setting master controller Reset the power supply for all optional controllers for centralized control simultaneously If the malfunction is still not cleared reset the power supply for all optional controllers for centralized control simultaneously Disconnect the connector for setting master controller from the master controller connect to another optional controller for centralized control and simultaneously reset all gt optional controllers for centralized control again The controller connected by the connector for setting master controller when the malfunction is cleared is defective and must be replaced V2839 Troubleshooting 241 Troubleshooting OP Schedule Timer SiUS30 604 45 Address Duplication Improper Setting Remote Controller Display Applicable Models Method
214. ery system 5 In the case of heat pump system 2 This unit cannot be installed outdoors Install indoors Machine room etc Hold ambient condition at 35 95 F 80 RH Heat rejection from the casing 0 64KWx2 4 There are some cases where capacity decreases depending on operating states Specifications 19 Specifications SiUS30 604 Model Name Combination Unit RWEYQ168MTJU Model Name Combination Unit RWEYQ84MTJU RWEYQ84MTJU 1 Cooling Capacity Btu h 168 000 2 Heating Capacity Btu h 189 000 Casing Color Ivory White 5Y7 5 1 Dimensions HxWxD in 39 3 8x30 3 4x21 11 16 x2 Heat Exchanger Stainless Steel Plate Type Type Hermetically Sealed Scroll Type Piston Displacement m h 13 66x2 Comp Number of Revolutions r p m 6 450x2 Motor OutputxNurnber kW 402 Starting Method Soft Start Liquid Pipe in 5 8 in C1220T Flare Connection Main Line Suction Gas Pipe in 1 1 8 in C1220T Brazing Connection x3 Main Line Connecting Discharge Gas Pipe in x4 7 8 in C1220T x5 1 1 8 in C1220T Brazing Connection Main Line Pipes Water inlet 1 1 4 Female Thread Water outlet 1 1 4 FPT Female Thread Drain outlet 1 2 FPS Female Thread Machine Weight Mass Lbs 3304 330 Safety Devices High Pressure Switch Inverter Overload Protector Fusible Plugs Capacity Control 90 11 100 Refrigerant Name 410 Refrigerant Charge Lbs 11 5
215. es the voltage fall in the range of 208 to 230V 10 2 Is there any open phase or erroneous wire connection 3 Does the unbalanced voltage fall within GV Any of the conditions aforementioned is defective The compressor YES gt Remedy the defective conditions has an insulation resistance of 100kQ or less Is the NO Replace the compressor power transistor normal YES Connect and disconnect the following connectors D A2P lt gt X25A A1P 2 A2P lt gt X33A A1P The inverter PCB YES Replace the inverter PCB A2P A2P is damaged NO Turn ON the power supply and then set the RUN switch to ON The compressor enters standby mode YES gt Replace the inverter PCB A2P If the inverter PCB is significantly damaged the compressor or the fan motor may be damaged as well without completing the startup sequence YES gt Replace the inverter PCB A2P x If the inverter PCB is significantly damaged check for the compressor The U2 malfunction recurs Power transistor check Refer page 281 gt Check for every wire connection Continue the compressor operation It is supposed that the faulty power supply results from external causes such as instantaneous power failure Troubleshooting 211 Troubleshooting by In
216. f malfunction 16 2 cycle before O e 20 Contents of retry the latest Q o Q e Q o 21 Contents of retry 1 cycle before e Q e Q e Q 22 tents of retry 2 le Push the RETURN button BS3 and Contents of retry before O ojojo switches to the initial status of Monitor mode Push the MODE button BS1 and returns to Setting mode 1 V2765 The numbers in the No column represent the number of times to press the SET BS2 button 1 2 3 4 Number of indoor units connected Used to make setting of the number of indoor units connected to an out door unit Number of outdoor units connected Used to make setting of the number of outdoor units connected to DIII NET that is one of the communication lines Number of BS units connected Used to make setting of the number of BS units connected to DIII NET that is one of the communication lines Number of indoor units Used to make setting of the number of indoor units connected to DIII NET that is one of the communication lines Only available for VRV indoor units Test Operation 117 Field Setting SiUS30 604 Setting item 0 Display contents of Operation backup operation setting and others Operation backup operation ON o e setting OFF Te setting H e e M o L Tc setting H
217. f moving part of electronic expansion valve Causes W Defect of outside unit PC board A1P W Defect of connecting cable Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn power supply off and turn power supply on again Return to normal NO expansion valve is connected to X26A and X28A of outside unit PC board A1P Normal when coil check 1 of the moving gt NO External factor other than malfunction for example noise etc After connecting turn the power off and then back on again part of the electronic expansion valve is checked The connecting YES Replace the moving part of the electronic expansion valve cable is short circuited or disconnected NO gt Replace the connecting cable 7 Replace outside unit PC board V3067 Troubleshooting 179 Troubleshooting by Indication on the Remote Controller SiUS30 604 1 Coil check method for the moving part of the electronic expansion valve Discount the electronic expansion valve from the PC board and check the continuity between the connector pins Normal Pin No 1 White 2 Yellow 3 Orange 4 Blue 5 Red 6 Brown 1 White x P 5 Approx Approx 3008 1500 2 Yellow o 3000 1500 3 Oran
218. fect of thermistor R2T for liquid pipe Causes W Defect of indoor unit PC board Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Connector is connected to X12A or X18A of the indoor unit PC NO gt Connect the connector and turn on again Resistance is normal when measured after disconnecting the thermistor 2 from the indoor unit PC board NO gt Replace the thermistor R2T Replace the indoor unit PC board V2784 2 Refer to thermistor resistance temperature characteristics table on P278 168 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 10 CS Indoor Unit Malfunction of Thermistor R3T for Gas Pipes Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting uni All indoor unit models Malfunction detection is carried out by temperature detected by gas pipe thermistor When the gas pipe thermistor becomes disconnected or shorted while the unit is running W Defect of indoor unit thermistor R3T for gas pipe Defect of indoor unit PC board Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Caution Connector is NO connected to X
219. for 12 minutes or more YES gt Push and hold the RESET button on the outside unit PC board for 5 seconds Is indoor outside unit and outside unit outside unit transmission wiring normal NO gt Fix the indoor outside unit transmission wiring gt Replace the outside unit PC Board A1P V2822 214 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 42 US Malfunction of Transmission between Remote Controller and Indoor Unit u5 Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting All models of indoor units In case of controlling with 2 remote controller check the system using microcomputer is signal transmission between indoor unit and remote controller main and sub is normal Normal transmission does not continue for specified period Malfunction of indoor unit remote controller transmission Connection of two main remote controllers when using 2 remote controllers Defect of indoor unit PC board Defect of remote controller PC board Malfunction of transmission caused by noise Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Caution 551 of Using YES 2 remote controllers ger CLE E Set one remote controller to contr
220. forcibly by using Demand 1 Setting or Demand 2 Setting To operate the unit with this mode additional setting of Normal Demand Setting or external input by external control adapter is required Demand 1 setting Setting Standard for upper limit of power consumption Demand 1 setting 1 Approx 60 Demand 1 setting 2 factory setting Approx 70 Demand 1 setting 3 Approx 80 Demand 2 setting Setting Standard for upper limit of power consumption Demand 2 setting 2 factory setting Approx 40 Other protection control functions have precedence over the above operation Test Operation 125 Field Setting SiUS30 604 Setting of Demand Operation By connecting the external contact input to the demand input of the outside unit external control adapter optional the power consumption of unit operation can be saved suppressing the compressor operating condition A When the demand operation is carried out by external instructions with the use of the external control adapter for outside unit 1 While in Setting mode 2 set the setting condition for set item No 12 Setting of external low noise demand operation to YES 2 If necessary while in Setting mode 2 select the set item No 30 Setting of Demand 1 level and then set the setting condition to targeted mode B When the normal demand operation is carried out
221. frigerant System not Set Incompatible Wiring Piping Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting UF All models of indoor units RWEYQ60 72 84MTJU On check operation the number of indoor units in terms of transmission is not corresponding to that of indoor units that have made changes in temperature The malfunction is determined as soon as the abnormality aforementioned is detected through checking the system for any erroneous connection of units on the check operation W Improper connection of transmission wiring between outside unit and external control adaptor for outdoor unit W Failure to execute wiring check operation W Defect of indoor unit PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Are the stop NO valves openned Open stop valve Is indoor outside and outside outside unit transmission wiring normal test operation YES Wiring check operation carried out Replace indoor unit PC board indoor outside and outside outside unit transmission wiring normal gt After fixing incorrect wiring push and hold the RESET button on the master outside unit PC board for 5 seconds The unit will not run for up to 12 minutes gt Test oper
222. frigerant leaks are present After working securely tighten the cover of service port without fail by specified torque When loosening a flare nut always use two wrenches in combination When connecting the piping always use a spanner and torque wrench in combination to tighten the flare nut When connecting a flare nut coat the flare inner and outer faces with ether oil or ester oil and hand tighten the nut 3 to 4 turns as the initial tightening Do not forget to open the stop valve before starting operation r Heat pump system Remove the cap and turn Never remove with the hexagon wrenches for any reason the valve counter clockwise the partition flange Heat recovery system Remove the cap and turn the valve counter clockwise with the hexagon wrenches until it stops until it stops 9 Discharge Discharge gas side Liquid side gas side Full close on Suction the suction gas Suction side gas side gas side 132 Test Operation SiUS30 604 Field Setting 3 2 6 Setting of Refrigerant Recovery Mode When carrying out the refrigerant collection on site fully open the respective expansion valve of indoor and outside units Operation procedure In setting mode 2 with units in stop mode set Refrigerant Recovery Vacuuming mode to ON The respective expansion valve of indoor and outsi
223. gas piping Fitting port 2 N E gas piping Discharge A Fitting port gas piping Fitting port Three way N N valve E E gt Check Valve liquid piping N liquid piping Fitting port a Fitting port LIEST 40045338 Appendix SiUS30 604 iagrams D iring 2 w iagrams D Outside Uni RWEYQ60MTJU RWEYQ72MTJU RWEYQ84MTJU iring 2 1 204 006 ILIHM LHM 3018 018 038 03H 2 18 718 580102711 A023 ON 1VU3d0 N3HM 131123480 38 LONNYJ 80123135 1v38 1002 01 NOLLWH3d0 41545 NV dW d H3lVM 228005 1 V 9N13901831N N3HM 1 FHL N339138 1112812 NOIlVH3dO H3lVM 39800S 1V3H V TIVISNI 6 VWNINHSL JHL N33W138 1112812 3201831N NV 1234802 01 38015 38 8 8415 32 A30 8011231084 1112812 18045 LON 00 9NI1VE3dO L W1IMS 150 NV 658 158 ISN 01 MOH U3A0 08 0dNO 13 NO 138V W0110V338d 3211835 OL 39331 9 IV3H 1002 HOLINS 80129135 575 Xidd S 04 41115 WIX 41V SGA AV13U 2IISNOWM 39WY80 9 1000 83 HOLINS 801231301 516 IEA
224. ge x S I Approx 1500 4 1500 5 6 Brown O Continuity x No continuity 1 White O White 1 2 Yellow Red 5 3 3 Orange 3 4 C 2 4 Yellow Brown 5 Red C 6 4 6 Brown O 180 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 18 Outside Unit Abnormal Discharge Pipe Temperature Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting RWEYQ60 72 84MTJU Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor W When the discharge pipe temperature rises to an abnormally high level over 135 C m When the discharge pipe temperature rises suddenly over 120 C continues 10 min m Faulty discharge pipe temperature sensor m Faulty connection of discharge pipe temperature sensor m Faulty outdside unit PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Connect the Service Checker Restart operation after resetting operation Are discharge pipe thermistor characteristics normal 1 Replace the discharge pipe thermistor PCB detection temperature normal 2 NO
225. gerani s eee r n 38 1 1 RWEYQ60MTJU RWEYQ72MTJU RWEYQ84MTUJU 38 1 2 BSV OSG COM M 40 Functional Parts Layout u s 41 2 1 RWEYQ60MTJU RWEYQ72MTJU RWEYQ84MTUJU 41 Refrigerant Flow for Each Operation 43 3 1 In Case of Heat Pump Connection sese 43 3 2 Case of Heat Recovery Connection One Outside Unit Installation 40 45 3 3 In Case of Heat Recovery Connection 3 Outside units Connection 49 Refrigerant Circuit 37 Refrigerant Circuit SiUS30 604 1 Refrigerant Circuit RWEYQ60MTJU RWEYQ72MTJU RWEYQ84MTJU 1 1 No in 2 Symbol Name Major Function diagram Inverter compressor is operated on frequencies between 52 Hz and 230 Hz by A M1C Inverter compressor INV using the inverter The number of operating steps is as follows In cooling operation High pressure control E Y1E Electronic expansion valve In heating or simultaneous cooling heating operation Main EV1 When the heat exchanger is used as the evaporator SH control When the heat exchanger is used as the condenser High pressure control Electroni PI
226. gram shows outside unit rotation in combination of 3 outside units Oil return operation Normal operation Normal operation Outside unit rotation d Master Slave 1 Slave 2 Master Slave 1 Slave 2 Outside unit Priority Priority Priority rotation Priority Priority Priority 1 2 3 3 1 2 Oil return operation Normal operation 4 Normal operation Master Slave 1 Slave 2 lL Master Slave 1 Slave 2 uu u Outside unit Priority Priority Priority rotation Priority Priority Priority 3 1 2 2 3 1 Master unit slave unit 1 and slave unit 2 in this section are the names for installation They are determined in installation work and not changed thereafter These names are different from master unit and slave unit for control The outside unit connected the control wires F1 and F2 for the indoor unit should be designated as master unit Consequently The LED display on the main PCB for master unit slave unit 1 and slave unit 2 do not change Refer to the page 95 82 Function SiUS30 604 Outline of Control Indoor Unit 9 Outline of Control Indoor Unit 9 1 Drain Pump Control 1 The drain pump is controlled by the ON OFF buttons 4 button 1 4 given in the figure below
227. gt Replace the main PCB e The discharge pipe thermistor is normal and the main PCB temperature detection is also normal e n fact discharge pipe temperature is rising M Refer to page 251 to eliminate the causes of overheat operation 1 Compare the resistance values of the discharge pipe thermistor with measurements of a surface thermometer For temperature and resistance characteristics of a thermistor refer to page 278 279 2 Compare the discharge pipe temperature checked by the Service Checker with the resistance of the thermistor refer to 1 Troubleshooting 181 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 19 F5 Refrigerant Overcharged Remote Fo Controller Display Applicable RWEYQ60 72 84MTJU Models Method of Detect excessive charging of refrigerant using suction pipe temperature and subcooling heat Malfunction exchanger outlet temperature during check operation Detection Malfunction When the suction pipe temperature and the subcooling heat exchanger outlet temperature during Decision check operation drop and become below the evaporation temperature Conditions Supposed W Excessive refrigerant charging Causes m Suction pipe thermistor removed m Subcooling heat exchanger outlet thermistor removed 182 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller Troubleshooting N Be sure to turn off power s
228. harge pipe thermistor and judgment of piping length refrigerant overcharging and learning for the minimum opening degree of motorized valve CHECK OPERATION FUNCTION LED display H1P H7P O ON Q BLINKING OFF Unit stopping 000000 Press the TEST button for 5 seconds Step 1 Pressure equalizing 200000 10 sec 10 minutes Y Step 2 Cooling start control eoeeece t 3 5 minutes Step 3 Stability waiting operation eoeeeco 10 minutes Y Step4 6 i e Stop valve close check 009000000 e Wrong wiring check 6 e Refrigerant over change check Piping length check eoeeooe 3 minutes 1 eoeeooo Step 7 Pump down residual operation eoeceee 10 sec 5 minutes Y Step 8 Standby for restarting eoeceeo 5 minutes Y Completion O Normal completion O O Abnormal completion 134 Test Operation SiUS30 604 Field Setting 3 2 9 Power Transistor Check Operation Notes When the inverter system malfunctions malfunction of inverter INV compressor to locate where the malfunction occurs switching to the power transistor check mode of inverter in the service mode setting enables not to judge the position detection signal malfunction but to output waveform only during inverter operation The waveform can be checked by disconnecting the wiring of compressor After the completion of checks ret
229. hermistor Resistance Temperature Characteristics 278 Thermostat Sensor in Remote Controller 86 Troubleshooting OP Central Remote Controller 229 Troubleshooting OP Schedule Timer 235 Troubleshooting OP Unified ON OFF Controller 243 U UO oe ees od dee s 207 UL 209 LU E spt 210 US cte eterni Perte 212 UU PEE 213 Ub isa dida e enel re 215 UE EE 216 UE 218 Jor scs se S a de Rt f 219 221 Ue 223 US 224 235 DE EE 226 227 SiUS39 601 Index SiUS39 601 Drawings amp Flow Charts A Functional Parts Layout 41 Abnormal Discharge Pipe Temperature 181 Actuation of High Pressure Switch 173 G Actuation of Low Pressure Sensor 175 Gauge manifold for R 410A 289 Address Duplication of Centralized H a am eite Puts 223 saka utu si 90 Address Duplication Improper Setting 234 242 Hot Start Control tin Heating Operater Only ac 89 E BSVQ96 60M uruqa de eee ets 40 o onina croesir Centralized Control 232 240 Centralized Control G
230. ic High pressure level of high pressure T expansion valve opens fully Frequency Increases Discharges pipe or low pressure droop contro 1 Reaches the lowest frequency P d When frequency reaches the lowest level low pressure cannot be maintained Reaches the lowest frequency Low pressure MEM 1 1 1 Frequency frequency decreases due to capacity control In order to maintain low pressure Frequency decreases due to droop control Degree of inadequate refrigerant Adequate level Increase in the degree of inadequate refrigerant 254 Troubleshooting SiUS30 604 Part 7 Procedure for Mounting Dismounting of Switch Box 1 Procedure for Mounting Dismounting of Switch 256 1 1 Procedure for Dismounting etre eet reir Rue ete 256 1 2 Procedure for Mounting oe ee tee Lee eet denies 256 Procedure for Mounting Dismounting of Switch Box 255 Procedure for Mounting Dismounting of Switch Box SiUS30 604 1 Procedure for Mounting Dismounting of Switch Box 1 1 Procedure for Dismounting 1 Dismount the lid from the switch box 2 Disconnect high voltage and low voltage wirings from the PC board and the terminal blocks referring to Figure on the right 3 Unscrew mounting screws from the top plate the stop valve mounting plate and the bot
231. id pipe temperature thermistor R2T of the indoor unit heat Prevention by Off exchanger drops too low the unit enters freeze prevention operation in accordance with the Cycle Indoor following conditions and is also set in accordance with the conditions given below Unit Conditions for starting freeze prevention Temperature is 30 F or less for total of 40 min or temperature is 23 F or less for total of 10 min Conditions for stopping freeze prevention Temperature is 45 F or more for 10 min continuously Ex Case where temperature is 23 F or less for total of 10 min 10 min 45 F 32 F 23 F Freeze prevention operation Forced OFF by thermostat VG005 92 Function SiUS30 604 Part 5 Test Operation s Operaio esgerin T T TEM 94 1 1 Procedure dubi EC ORUM 94 Outside Unit PC Board 98 M Field Setting tesa E 99 3 1 Field Setting from Remote Controller sene 99 3 2 Field Setting from Outside Unit r 110 Test Operation 93 Test Operation SiUS30 604 1 Test Operation 1 1 Procedure and Outline Follow the following procedure to conduct the initial test operation after installation 1 1 1 Check Work Prior to Turn Power Supply On Check the below items Power wiring O Is the wiring performed as specified Cont
232. igerant Circuit RWEYQ60MTJU RWEYQ72MTJU RWEYQ84MTJU i 7 7 Filter Fusible plug Electronic Heat exchanger pipe ie uM OO Water inlet PO ss 4 Plate heat 2s Solenoid valve exchanger Check valve Electronic expansion valve Solenoid valve Capillary tube Check valve Water Service outlet port Pressure requlating Capillary valve Capillary tube Four way valve tube Filter Solenoid valve Four way valve Check valve Check valve Strainer Gauge port flare connection E Filter SENPH High pressure EE sensor HPS High pressure amp 90 switch Capillary Solenoid i a Hu Low pressure auge Compressor sensor 1 flare connection INV Filter Stop valve With service port on on site piping side 4 5 16in flare connection 4D055410 Refrigerant Circuit 39 Refrigerant Circuit SiUS30 604 1 2 BSVQ36 60M No Symbol Name Major function A 15 Solenoid v
233. imes within 30 min HPS is activated without high pressure standby thus outputting the malfunction code ES In heating operation or simultaneous cooling heating operation Normal operation Pc 426 3psi v Pc 397 3psi Upper limit 216 Hz Pc 487 2psi Pc 397 3psi Frequency control v Compressor down 7 steps 10 sec 5 gt 50 Master unit 52Hz Slave unit stop Pc gt 526 3psi When occurring 3 times within Less than 2 times High pressure standby r 9 30 min HPS is activated without high pressure standby thus outputting the within 30 min malfunction code 70 Function SiUS30 604 Protection Control 6 2 Low Pressure Protection Control This low pressure protection control is used to protect compressors against the transient decrease of low pressure In cooling operation Normal operation Pe lt 49 3psi gt 56 5psi 1 Pe LP pressure sensor detection value for master unit 2 This frequency control is carried out in whole system v Compressor 52Hz Pe 34 8psi Pe 49 3psi Hot gas solenoid valve Y1S ON lt Hot gas solenoid valve Y1S OFF lt 34 8psi Pe 10 1psi Less than 3 times within 60 min
234. in P4 radiation fin Incorrect combination of inverter and fan driver Incorrect combination of inverter and fan driver PJ 150 Troubleshooting SiUS30 604 Troubleshooting by Remote Controller Malfunction Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3 code LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED1 LED2 LED3 LED4 LED5 LED6 LED7 LED1 LED2 LED3 LED4 LED5 LED6 LED7 9 e 9 9 9 e 9 9 9 e E4 9 9 9 5 9 9 9 9 e e E7 9 9 9 9 9 Q e 9 E9 9 e 9 9 9 9 9 H7 9 e e 9 e e 9 9 9 9 9 e 9 H9 9 9 e 9 9 e e HJ 9 9 9 e 9 9 e e F3 9 9 9 9 9 9 9 e e F6 9 9 9 9 e e J3 9 e 9 9 9 e 9 9 9 9 9 e e 9 9 5 9 9 e 9 9 J7 9 e 9 9 9 9 O e e J9 9 e 9 9 9 e 9 9 e JC 9 e 9 9 e e 9 L1 9 e 9 9 9 9 e e 9 9 e 9 9 9 9 9 e 9 9 O 9 e 9
235. in the compressor leading to insulation degradation Opening stop valve 1 2 Remove the cap and turn the valve counterclockwise with the hexagon wrench JISB4648 Turn it until the shaft stops Do not apply excessive force to the stop valve Doing so may break the valve body as the valve is not a backseat type Always use the special tool Make sure to tighten the cap securely Test Operation 131 Field Setting SiUS30 604 lt Caution gt Closing stop valve 1 2 3 Remove the cap and turn the valve clockwise with the hexagon wrench Securely tighten the valve until the shaft contacts the main body seal Make sure to tighten the cap securely For the tightening torque refer to the table on the below Tightening torque Tightening torque ft Ibf Turn clockwise to close Stop valve Shaft Cap valve body valve lid Gas side accessory pipe 1 24 1 29 4 Service port Flare nut 3 98 Hexagonal 4 87 wrench 4 mm 19 91 Hexagonal 24 33 wrench 10 mm Liquid side 9 95 12 17 8 48 10 25 Gas side 26 54 32 44 8 48 10 25 16 22 20 65 Refer to figure below Shaft Hexagon hole Cap Ne ju Service port The main body seal Do not damage the cap sealing Always use a charge hose for service port connection After tightening the cap check that no re
236. inals are secure Improper installation and connections can cause excessive heat generation fire or an electrical shock If the installation platform or frame has corroded replace it Corroded installation platform or frame can cause the unit to fall resulting in injury Check the grounding and repair it if the equipment is not properly grounded Improper grounding can cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 Mohm or higher Faulty insulation can cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and floor 1 1 4 Using Icons Icons are used to attract the attention of the reader to specific information The meaning of each icon is described in the table below 1 1 5 Using Icons List Icon Type of Description Information Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Note Caution A caution is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get an Caution unexpected result or has to restart part of a procedure N Warning Warning A warning is used when there is danger of personal injury Reference A reference guides the reader to
237. into 5 positions position P2 4 The factory set position is standard position VLO12 Function 85 Outline of Control Indoor Unit SiUS30 604 9 3 Thermostat Sensor in Remote Controller Cooling Preset temperature Ts F Temperature is controlled by both the thermostat sensor in remote controller and air suction thermostat in the indoor unit This is however limited to when the field setting for the thermostat sensor in remote controller is set to Use If there is a significant difference in the preset temperature and the suction temperature fine adjustment control is carried out using a body thermostat sensor or using the sensor in the remote controller near the position of the user when the suction temperature is near the preset temperature 29 Soe ee S 54 57 61 64 68 72 75 79 82 86 90 93 F Suction temperature TH1 Range in which thermostat sensor 5 Range in which _ Differential in remote controller can be used body thermostat sensor can be used VG003 m Ex When cooling Assuming the preset temperature in the figure above is 75 F and the suction temperature has changed from 64 F to 86 F A This example also assumes there are several other air conditioners the VRV system is off and that temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 64 F to 73 F A gt Remote control
238. inutes L8 6 Radiation fin temperature 192 2 3 times in 60 minutes L4 60 Function SiUS30 604 Standby 3 Standby 3 1 Restart Standby Forced standby is performed to prevent frequent repetition of ON OFF of the compressor and to equalize pressure in the refrigerant system Parts name Symbol pe Actuator function Compressor M1C 0 Hz Inverter cooling fan M1 2F OFF 4 way valve Main 20S1 55 Holding 4 way valve for heat exchanger 2052 Y7S Holding heat exchanger electronic exp Y1E 0 pulse Sub cooling electronic exp valve EV3 Y3E 0 pulse Hot gas bypass solenoid valve SVP Y1S OFF Water heat exch oil return solenoid valve SVE Y2S OFF Receiver gas charging solenoid valve SVL Y3S OFF Receiver gas discharge solenoid valve SVG 45 unit liquid pipe stop SVSL Y6S ON Indoor cooling unit fan M1 2F Remote controller setting Indoor cooling unit expansion valve EV Y1E All indoor EV 0 pulse Indoor heating unit fan M1 2F Indoor unit control Indoor heating unit expansion valve EV All indoor EV 0 pulse BS 20RH 3 way 20RH Y3S Holding BS 20RT 20RT Y1S OFF Ending condition 4 minutes 3 2 Crankcase Heater Control In order to prevent the refrigerant from dwelling in the compressor in the stopped mode this mode is used to control the crankcase heater Discharge
239. ion can be provided by a single system use of the wiring between the indoor Exhaust gas piping units the VRV WII unit and the central Liquid piping control wiring Provides an auto address setting function and check function that detects connection errors in wiring and piping Indoor unit Indoor unit Indoor unit for easier installation Simultaneous heating e Water piping goes only to the VRV WI 9 cooling operation unit with refrigerant piping run in occupied spaces making the system 42 ideal for installing in spaces such as OA rooms with no worry of water leakage or corrosion w VRV WII unit Liquid piping Indoor unit Cooling only Indoor unit Cooling Indoor unit Heating v 2 Energy saving heat recovery operation Centralized interlocking function Centralized interlocking input is possible using an external control adaptor DTA104A62 By using one external control adaptor circuit board centralized interlocking input to multiple units within the same water system is possible DTA104A62 Interlocking Control wiring external to external transmission wiring General Information Features SiUS30 604 1 5 Outside unit lineup A lineup of 5 ton to 21 ton models precisely meets wide ranging office space
240. ion manual Installation manual Paper pattern for installation Drain hose Clamp metal Washers Sealing pads Clamps Screws Insulation for fitting Drawing No C 3D042686 Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping length 25ft Horizontal Nominal heating capacities are based on the following conditions Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping length 25ft Horizontal Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat Anechoic chamber conversion value measured under JISB8616 conditions During actual operation these values are normally somewhat higher as a result of installation conditions 2 Specificatio ns 25 Specifications SiUS30 604 Slim Ceiling Mounted Duct Type Model FXDQ07MVJU FXDQ09MVJU FXDQ12MVJU 1 Cooling Capacity Btu h 7 500 9 500 12 000 2 Heating Capacity Btu h 8 500 10 500 13 500 Casing Color Galvanized Steel Plate Galvanized Steel Plate Galvanized Steel Plate Dimensions HxWxD in 7 7 8 x 27 9 16 24 7 16 7 7 8 x 27 9 16 x 24 7 16 7 7 8 x 27 9 16 x 24 7 16 Coil Cross RowsxStagesxFPI 2x 12x 17 2x 12x17 3x 12 17 Fin Coil Face Area ft 1 36 1 36 1 36 Model Type Sirocco Fan Sirocc
241. ipe Pressure Sensor 193 Field Setting from Outdoor Unit Malfunction of Swing Flap Motor MA 162 Setting by dip switches 110 Malfunction of System Refrigerant System Address Field Setting from Outside Unit 110 Undefined usu 227 Mode changing procedure 111 Malfunction of Thermistor R1T for Freeze Prevention 92 Suction Air 56 lee Eo ee te picos 170 Drawings amp Flow Charts V SiUS39 601 Malfunction of Thermistor R2T for Refrigerant System not Set Heat Exchanger 168 Incompatible Wiring Piping 226 Malfunction of Thermistor R2T for Remote Controller Self Diagnosis Function 147 Suction Pipe 188 Remote Controller Service Mode 145 Malfunction of Thermistor for Reverse Phase Open Phase 209 G s 169 RWEYQ60 72 41 Malfunction of Thermostat Sensor in Remote Controller 171 S Malfunction of Transmission between Central Remote Self diagnosis by Wired Remote Controller 141 Controller and Indoo
242. ipes loose 169 connection disconnection short circuit failure C9 9 9 9 Malfunction of thermistor R1T for air inlet loose 170 connection disconnection short circuit failure CJ Malfunction of thermostat sensor in remote controller 171 Outside E1 9 9 9 PC board defect 172 Unit E3 9 9 9 Actuation of high pressure switch 173 E4 9 9 9 Actuation of low pressure sensor 175 E5 9 9 9 Compressor motor lock 177 E9 9 9 9 Malfunction of moving part of electronic expansion valve 179 Y1E 3E F3 9 9 9 Abnormal discharge pipe temperature 181 F6 9 9 9 Refrigerant overcharged 182 HJ 9 9 9 Water system defect 184 J3 9 9 9 Malfunction of discharge pipe thermistor R3T 186 loose connection disconnection short circuit failure J4 9 9 9 Malfunction of heat exchanger gas pipe thermistor R4T 187 J5 9 9 9 Malfunction of thermistor R2T for suction pipe loose 188 connection disconnection short circuit failure J7 9 9 9 Malfunction of liquid pipe thermistor R6T 189 J9 9 9 9 Malfunction of the evaporating side gas pipe temperature 190 thermistor on subcooling heat exchanger R5T JA 9 9 9 Malfunction of discharge pipe pressure sensor 191 JC 9 9 9 Malfunction of suction pipe pressure sensor 193 LO 9 9 9 Inverter system error L1 9 9 9 Malfunction of PC board 195 L4 9 9 9 Malfunction of inverter radiating fin temperature rise 196 L5 9 9 9 Inverter compressor motor grounding short circuit 197 L6 9 9 9 Compressor motor coil grounding or short
243. isplay Unit No Senso type 11 27 Temperature Address display Unit No type 9 18 1 008 Address Forced fan ON Manually turn the fan ON by each unit When you want to search for the unit No By selecting the unit No with the button you can turn the fan of each indoor unit on forced ON individually Unit 1 009 Individual setting Set the fan speed and air flow direction by each unit Select the unit No with the time mode button Set the fan speed with the button Setthe air flow direction with the button Unit 1 Code qu 1 3 Fan speed 1 low Air flow direction 3 High PO P4 010 Unit No transfer Transfer unit No Select the unit No with the button Set the unit No after transfer with the button Present unit No Unit 1 us Code 02 011 Unit No after transfer 47 This function is not used by VRV R 410A Heat Pump 50Hz 146 Troubleshooting SiUS30 604 Troubleshooting by Remote Controller 1 6 Remote Controller Self Diagnosis Function The remote controller switches are equipped with a self diagnosis function so that more appropriate maintenance can be carried out If a malfunction occurs during operation the operation lamp malfunction code and display of malfunctioning unit No
244. it electronic expansion valve is used for superheated degree control For details refer to page 89 In heating the outdoor unit electronic expansion valve Y1E is used for superheated degree control of 250 Troubleshooting SiUS30 604 Troubleshooting OP Unified ON OFF Coniroller CHECK 3 Check for causes of overheat operation Referring to the Fault Tree Analysis FTA shown below identify the faulty points Rise in discharge pipe temperature Faulty discharge pipe temperature control Superheated Compressor In cooling If the indoor unit electronic expansion valve excessively throttled 3 Faulty superheated degree control In heating If the outside unit electronic expansion valve excessively throttled 4 Clogged hot gas passage Faulty hot gas bypass control Faulty solenoid valve body Faulty control PCB Faulty solenoid valve coil Are the coil resistance and insulation normal Are the coil resistance and insulation normal Faulty low pressure sensor Are the voltage characteristics normal Faulty valve coil Faulty I In cooling only ud Faulty valve body Faulty subcooling expansion valve electronic expansion val
245. ith the liquid thermistor Temperature F detected with the gas thermistor SC Condenser outlet subcooled degree TC High pressure equivalent saturated temperature Furthermore the default value of the optimal evaporator outlet superheated degree condenser outlet subcooled degree is 5 deg However this default value varies with the operating performance 9 7 Hot Start Control In Heating Operation Only At startup with thermostat ON or after the completion of defrosting in heating operation the indoor unit fan is controlled to prevent cold air from blasting out and ensure startup capacity Detail of operation When either the start condition 1 or the start condition 2 is established the operations shown below will be conducted Defrost ending or oil return ending Hot start ending conditions or Thermostat ON lapse of 3 minutes OR TH2 gt 93 2 F Tc 2125 6 F Hot start control Hot start in progress lt H L remote Normal control controller setting 8 fan is not OFF before initiating the hot start LL The fan is OFF before initiating the hot start OFF Remote controller Normal control E setting 8 Po Horizontal Temperature F detected with the gas thermistor TC High pressure equivalent saturated temperature Function 89 Outline of Control Indoor Unit SiUS30 604
246. its 213 S Malfunction of Transmission between Inverter and Service ee oet diea eds 286 Control PC Board accesses utes ted ete 201 Setting Contents and Code No 102 Malfunction of Transmission between Master and Slave Setting Modes Remote Controllers 218 Auto Restart after Power Failure Reset 104 Malfunction of Transmission between Optional Fan Speed Changeover When Thermostat is Controllers for Centralized Control 230 238 ORES r 104 i Index SiUS39 601 Filter Sign Setting 103 Ultra Long Life Filter Sign Setting 103 Setting of Air Flow Direction Adjustment Range 105 Setting of Demand Operation 125 Setting of Refrigerant Additional Charging Operation 129 Special Operation 76 Specifications 16 BS Units eer rris rete i ecu 23 Indoor UNIS oo a trr ara 24 Outside Units meirinne aiie 16 Standby eiit etn ees ae 61 Startup Control 62 DIOP kaa 59 Test Operation 2 94 Procedure and Outline 94 T
247. l mounted type FXDQ07MVJU p FXAQ07MVJU FXDQO9MVJU I oA FXAQ09MVJU FXDQ12MVJU FXAQ12MVJU FXDQ18MVJU y FXAQ18MVJU FXDQ24MVJU FXAQ24MVJU E Ceiling mounted built in type Floor standing type FXSQ12MVJU FXLQ12MVJU FXSQ18MVJU FXLQ18MVJU FXSQ24MVJU FXLQ24MVJU FXSQ30MVJU FXSQ36MVJU FXSQ48MVJU Ceiling mounted duct type Concealed floor standing type FXMQ30MVJU FXNQ12MVJU FXMQ36MVJU FXNQ18MVJU FXMQ48MVJU FXNQ24MVJU BS Units BSVQ36MVJU BSVQ60MVJU 10 General Information SiUS30 604 External Appearance 3 2 Outside Units RWEYQ72MTJU RWEYQ84MTJU 5e6e7 ton SS 12 14 ton 18 21 ton General Information 11 Combination of Outside Units SiUS30 604 4 Combination of Outside Units System Number of Module Multi Connection Piping Kit for Capacity units 5ton 6ton Outside Unit Option 22 560 BHFP26MA56U 22 560 BHFP26MA56U BHFP22MA84U BHFP26MA84U BHFP22MA84U BHFP26MA84U Note For multiple connection of 12 ton 21 ton system an optional Daikin Multi Connection Piping Kit for Outside Unit is required 12 General Information SiUS30 604 Capacity Range 5 Capacity Range Outside Units Capacity Range 7ton 1
248. l of Control of heat exchange Control of heat exchange 0 pulse electronic expansion valve capacity balance capacity balance p AGR gt 0 fac R lt 0 Master unit Slave unit 1 Slave unit 2 Four way changeover valve for heat exchanger Y7S For the ON ON ON application of heat exchanger Evaporator Evaporator Evaporator Content of the control of electronic expansion valve Y1E Control of heat exchange capacity balance Control of heat exchange capacity balance Control of heat exchange capacity balance Function 69 Protection Control SiUS30 604 6 Protection Control High Pressure Protection Control This high pressure protection control is used to prevent the activation of protection devices due to abnormal increase of high pressure and to protect compressors against the transient increase of 6 1 high pressure In cooling operation Normal operation Pc gt 427 7psi Pc 397 3psi Pc HP pressure sensor detection value Y for each outside unit Comp upper limit 216 Hz Pc gt 507 5psi INV upper limit frequency 216 Hz Frequency control Comp upper limit down 3 steps 10 sec INV upper limit up 1 step 30 sec 52 2 lt 468 3psi gt 507 5psi Pc gt 526 3psi i Less than 2 times within 30 min High pressure standby When occurring 3 t
249. lace the HPS Are high pressure sensor characteristics normal 1 Replace the high pressure sensor NO detector pressure normal gt Replace the main PCB e The high pressure sensor is normal and the main PCB pressure detection is also normal e In fact high pressure is rising Refer to page 249 to eliminate the causes of high pressure rise 1 Compare the pressure sensor voltage measurements with pressure gauge readings For the pressure sensor voltage is measured at the connector and converted to pressure in accordance with page 280 2 Compare high pressure checked with the Service Checker with pressure sensor voltage measurements refer to 1 3 Measure the voltage of the pressure sensor 9V Connector for high pressure sensor red 4 Red 5 5 zs 3 Black 2 8 1 White a A D input 0 Measure the voltage DC between these two points 174 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 15 Outside Unit Actuation of Low Pressure Sensor Remote Controller Display Applicable RWEYQ60 72 8AMTJU Models Method of Judge the pressure detected by a low pressure sensor with the main PCB Malfunction Detection Malfunction When low pressure drops while the compressor is in operation Decision Wo
250. lation Manual Paper Pattern for Installation Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Washers Conduit Mounting Plate Insulation Tube Operation Manual Installation Manual Paper Pattern for Installation Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Washers Conduit Mounting Plate Insulation Tube Operation Manual Installation Manual Paper Pattern for Installation Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Washers Conduit Mounting Plate Insulation Tube Drawing No C 3D051780A Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping length 25ft Horizontal Nominal heating capacities are based on the following conditions Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping length 25ft Horizontal Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat External static pressure is changeable to change over the connectors inside electrical box this pressure means High static pressure Standard Anechoic chamber conversion value measured under JISB8616 conditions During actual operation these values are normally somewhat higher as a result of installation conditions 2 5
251. le Operation by remote Operation by remote Stop by Temperature Operation controller at time of controller at time of remote control by mode setting unified operation by unified operation by controller remote by remote centralized control centralized control controller controller The control mode is 1 Rejection Rejection Rejection Acceptance Acceptance Control by remote controller Operation Operation Unified operation Control mode individual operation by Unified stop individual Stop Temperature Operation mode central remote stop by central remote control mode setting controller or operation controller or timer stop controlled by timer Acceptance 0 deor 10 ON OFF control Reiection impossible by Example Acceptance remote controller p Acceptance Example 1 Example Rejection Rejection 11 Example Reiecti Acceptance 2 Only OFF control Rejection ejecuon Rejection 12 possible by remote Example ABMS 3 controller Acceptance 2 Rejection 13 Acceptance 4 14 Centralized J Acceptance 5 Acceptance Rejection 15 Acceptance Acceptance 6 Rejection 16 Individual Acceptance Acceptance 7 Acceptance Rejection 17 Reiecti Acceptance 8 Timer operation Acceptance Rejection 9186700 18 possible by remote During timer at During timer at OFF ond 9 iti iti cceptance controller ON position only position Accept
252. ler thermostat sensor is used for temperatures from 73 F to 81 F C gt E Body thermostat sensor is used for temperatures from 81 F to 86 F E And assuming suction temperature has changed from 86 F to 64 F Body thermostat sensor is used for temperatures from 86 F to 77 F F D Remote controller thermostat sensor is used for temperatures from 77 F to 70 F D B Body thermostat sensor is used for temperatures from 70 F to 64 F 86 Function SiUS30 604 Outline of Control Indoor Unit Heating is 90 86 Preset temperature Ts 82 79 75 72 68 64 61 59 When heating the hot air rises to the top of the room resulting in the temperature being lower near the floor where the occupants are When controlling by body thermostat sensor only the unit may therefore be turned off by the thermostat before the lower part of the room reaches the preset temperature The temperature can be controlled so the lower part of the room where the occupants are doesn t become cold by widening the range in which thermostat sensor in remote controller can be used so that suction temperature is higher than the preset temperature 5 d 5 GRAUE ES 252550550555050500555 2 HERO TER OE Att 54 57 61 64 68 72 Range in which thermostat sensor in re
253. lers for centralized control simultaneously Schedule timer and data station cannot be used in combination Disconnect either the schedule timer or data station and reset the power supply for all optional controllers for centralized control simultaneously NO Is a data station connected Is a schedule timer connected Is a parallel interface Schedule timer and parallel connected interface cannot be used in combination Disconnect either the schedule timer or parallel interface and reset the power supply for all optional controllers for centralized control simultaneously Is the schedule timer s individual combined connector connected YES Disconnect the schedule timer s individual combined connector and reset the power supply for all optional controllers for centralized control simultaneously there two or more optional controllers for centralized control connected with the connector for setting YES gt Arrange so that the connector for setting master control is connected to one controller for centralized control and reset the power supply for all optional controllers for centralized control simultaneously Reset the power supply for all optional controllers for centralized control simultaneously If the malfunction is still not cleared Disconnect the connector for setting master control from the master controller connec
254. let you know the contents and location of the malfunction When there is a stop due to malfunction the contents of the malfunction given below can be diagnosed by a combination of operation lamp INSPECTION display of the liquid crystal display and display of malfunction code It also lets you know the unit No during group control Operation lamp Display of indoor unit for which Inspection display malfunction has been detected Malfunction code VL050 Troubleshooting 147 Troubleshooting by Remote Controller SiUS30 604 Malfunction Operation Inspection Unit No Malfunction contents Page code lamp display Referred Indoor AO 9 9 9 Error of external protection device 154 Unit A1 9 9 9 PC board defect E PROM defect 155 A3 9 9 9 Malfunction of drain level control system 33H 156 A6 9 9 9 Fan motor lock overload 158 159 A7 9 Malfunction of swing flap motor MA 162 A9 9 9 9 1E on of moving part of electronic expansion valve 164 AF 9 Drain level above limit 166 AH 9 Malfunction of air filter maintenance AJ 9 9 9 Malfunction of capacity setting 167 C4 9 9 9 Malfunction of thermistor R2T for heat exchange loose 168 connection disconnection short circuit failure C5 9 9 9 Malfunction of thermistor R3T for gas p
255. llowing description Wrong setting may cause malfunction When optional accessory is mounted on the indoor unit setting for the indoor unit may be required to change Refer to information in the option handbook 3 1 1 Wired Remote Controller lt BRC1C71 gt SECOND CODE NO FIRST CODE NO 2P068938 1 1 When in the normal mode push the button for 4 seconds or more and operation then enters the field set mode 2 Select the desired mode No with the button 3 During group control and you want to set by each individual indoor unit when mode No 20 21 22 23 25 has been selected push the time mode button and select the indoor unit to be set Note This operation is not required when setting as a group Push the amp button and select the first code No Push the button and select the second code Push the timer button one time and define the currently set contents Push the button to return to the normal mode When setting the filter sign time to Filter Dirtiness High in all group unit setting set the Mode No to 10 Mode setting No to 0 and setting position No to 02 Test Operation 99 Field Setting SiUS30 604 3 1 2 Wireless Remote Controller Indoor Unit BRC7C812 4 82 BRC7E818 BRC7E83 MODE NO FIELD SET MODE
256. lse mixed in the refrigerant system High suction air Short circuit lt Is the suction air temperature not more temperature of than 80 6 F In heating indoor unit High ambient temperature lt 15 the indoor temperature not more than 80 6 F Faulty suction air thermistor of indoor unit Is the connector properly connected Are the thermistor resistance characteristics normal Excessive refrigerant charging Improper mode selection Faulty fan motor lt Can the fan motor be rotated with hands Decreased Are the motor coil resistance and Decreased fan output insulation normal fan airflow Faulty control PCB including capacity lt If a spare PCB is mounted is the rate setting capacity setting properly made High air Dirty filter lt Is the air filter clogged passage resistance Obstacle Is there any obstacle in the air passage Refer to CHECK 5 on page 253 lt Is the indoor unit too small for the large sized outside unit In heating 1 In cooling the outside unit electronic expansion valve Y1E is fully open in normal condition In heating the indoor unit electronic expansion valve is used for subcooled degree control Refer to Electronic Expansion Valve Control on page 89 Troubleshoo
257. ltage of the pressure sensor 5V Connector for low pressure sensor Blue 4 Red Black 3 ur 3 2 White Measure the voltage DC between these two points LP pressure sensor 176 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 16 5 Compressor Motor Lock Remote ES Controller Display Applicable RWEYQ60 72 84MTJU Models Method of Pick up the location signal using the inverter PCB from the UVWN line connected between the Malfunction inverter and the compressor and detect location signal pattern Detection Malfunction In normal operation location signal for a triple cycle of frequency applied while in locked operation Decision it is a double cycle and they are detected Conditions Retry twice 60 minutes Supposed Inverter compressor lock High differential pressure 72 5psi or more Incorrect UVWN wire connection Faulty inverter PCB Stop valve left closed Causes Troubleshooting 177 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the stop NO valve opened Open the stop valve NO UVWN wire connection gt Connect properly high differential pressure at the time of start up 72 5psi or more
258. main power supply turned on again Consequently the user might be surprised with question for the reason why 2 In the service work for example turning off the main power switch during the unit is in operation and turning on the switch again after the work is completed start the unit operation the fan rotates 104 Test Operation SiUS30 604 Field Setting Air Flow Adjustment Ceiling height Make the following setting according to the ceiling height The setting position No is set to 01 at the factory m Inthe Case of FXAQ07 24 FXHQ12 36 Mode No cM Setting 01 Wall mounted type Standard 13 23 0 02 Wall mounted type Slight increase 03 Wall mounted type Normal increase m Inthe Case of FXFQ12 36 Mode First Second Ceiling height No code code Setting No No 4 way Outlets 3 way Outlets 2 way Outlets 01 Standard Lower than 2 7 Lower than 3 0 m Lower than 3 5 m 13 23 0 02 High Ceiling H Lower than 3 0 m Lower than 3 3 m Lower than 3 8 m 03 Higher Ceiling S Lower than 3 5 m Lower than 3 5 m Air Flow Direction Setting Set the air flow direction of indoor units as given in the table below Set when optional air outlet blocking pad has been installed The second code No is factory set to 01 Setting Table Mode No First Code No Second Code Setting No
259. mission between Remote Thermostat Control in Dry Operation 88 Controller and Indoor Unit 215 Thermostat Control While in Normal Operation 88 Malfunction of Water system 184 Thermostat Sensor in Remote Controller 86 Method of Replacing the Inverter s Power Transistors usu Sumu 86 and Diode Modules 281 eating MEE 87 Diode Module 222 22 4 1 282 Torque 288 Power Transistor IGBT Troubleshooting On Inverter PC Board 282 OP Central Remote Controller 229 Troubleshooting OP Schedule Timer 235 Operation Lamp Blinks 243 Troubleshooting Operation of the Remote Controller s Inspection OP Unified ON OFF Controller 243 Test Operation Button 144 Troubleshooting by Remote Controller 140 Outside Unit PC Board Layout 98 Outside Unit Rotation 82 Ww Weigher for refrigerant charge 290 P Wired Remote Controller 99 PC Board Defect 155 172 22
260. mote controller can be used m Ex When heating 555 5 55955 FE ttt e AAAA et 252 Zn gt 2 572 52 2552 5 555 dd t ect gt OS 55 525555 522555 gt 2559520 2555 atat 5 59 555 25 RSE 55555 ce 55 55 55 EU EE e lt 22 255 erret tat 5 55 5 55 55 2555 0059 55 eo o 255 BEES 4525255 55555265559 75 79 82 86 90 93 Suction temperature TH1 Differential Range in which body thermostat sensor can be used V2769 Assuming the preset temperature in the figure above is 75 F and the suction temperature has changed from 64 F to 82 F A D This example also assumes there are several other air conditioners the VRV system is off and that temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 64 F to 77 F A gt C Remote controller thermostat sensor is used for temperatures from 77 F to 82 F C D And assuming suction temperature has changed from 82 F to 64 F D A Remote controller thermostat sensor is used for temperatures fr
261. n SVG OFF 4 SVG ON When the superheated degree at the evaporator outlet is small 2 In case of cooling heating simultaneous connection When the superheated degree at the evaporator outlet is large open the solenoid valve SVG for venting receiver gas of the outside units that are running out of gas and the solenoid valve SVL for pressurizing the receiver of the excessively charged outside units When the superheated degree at the evaporator outlet is large Normal operation SVG OFF SVL OFF SVG ON SVL ON When the superheated degree at the evaporator outlet is small Function 81 Other Control SiUS30 604 8 Other Control 8 1 Outside Unit Rotation Starting control In the case of multi outside unit system this outside unit rotation is used to prevent the compressor from burning out due to unbalanced oil level between outside units Details of outside unit rotation In the case of multi outside unit system each outside unit is given an operating priority for the control Outside unit rotation makes it possible to change the operating priority of outside units Thus the system becomes free of compressors that stop over an extended period of time at the time of partial loading preventing unbalanced oil level Timing of outside unit rotation After oil return operation At the beginning of the starting control Example The following dia
262. n also set by each individual unit Setting changes however cannot be checked except in the individual mode for those in parentheses 2 The mode numbers inside parentheses cannot be used by wireless remote controllers so they cannot be set individually Setting changes also cannot be checked 3 Marked are factory set 4 Do not make settings other than those described above Nothing is displayed for functions the indoor unit is not equipped with 5 88 may be displayed to indicate the remote controller is resetting when returning to the normal mode 6 This setting is only applicable to and type 7 Ifthe setting mode to Equipped heat reclaim ventilation fan conducts the fan residual operation by linking to indoor unit 102 Test Operation SiUS30 604 Field Setting 3 1 5 Applicable range of Field setting Ceiling Slim Ceiling Ceiling Ceiling Ceiling Wall mounted Floor Concealed mounted mounted duct mounted mounted duct Suspended type standing type Floor cassette type type built in type type type standing type Multi flow FXFQ FXSQ FXMQ FXHQ FXAQ FXLQ FXNQ Filter sign Ultra long life filter sign E mE mE m Remote controller thermostat sensor B 9 2 2 9 B Set fan speed when thermostat OFF 9 2 Q Air flow adjustment Ceiling EN a _ height 2 Air flow direction Air flow di
263. n using COOL HEAT selector turn this switch to the BS side NOTE This setting must be completed 1 1 before turning power supply ON 2 2 551 552 When using cool heat selector connect to the terminal A B and C on the EC of the electric parts box EXAMPLE OF TRANSMISSION LINE CONNECTION e Example of connecting transmission wiring Connect the transmission wirings as shown in the Fig 1 i In case of the indoor unit connect as the cool only unit it wire N he terminal F1 F2 of the last BS unit OUT D BS Fi 2 Fi IN D OUT D BS F1 F2 H Final BS unit R 1st unit Final unit To the indoor unit where the selection of heating Cooling only and cooling is available EN Cool heat selector remote control wiring Outside unit Branch wiring Use 2 core wires There is no polarity TOIND UNIT TO QUTD UNT Fi F2 F1 F2 ejejeje Use 3 core wires Keep in mind the polarity A BJA Fi F2 F1 F2 B8B rr Fe r r2 85 rr rz r Tr2 B8B IND ourpBs IND OUT DBS fc H 4 ino BS unit A 2 BS unit B
264. ndoor unit PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred External protection device is connected to terminals T1 and T2 of the indoor unit terminal block YES gt Actuation of external protection device ON OFF input from outside mode No 12 first code No 1 has been set to external protection device input second code No 03 by remote controller Change the second code No to 01 or 02 Indoor unit PC board replacement V2776 154 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 2 Al Indoor Unit PC Board Defect Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Al All indoor unit models Check data from E2PROM When data could not be correctly received from the E7PROM E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off m Defect of indoor unit PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn power supply OFF then power ON again Does YES the system return External factor other than to normal malfunction for example noise
265. nector Caution or parts damage may be occurred There is an open phase at the power supply YES terminal section X1M Fix the open phase Requires of the outside inspection of field power supply unit section NO Operation is normal if one YES place of power supply gt Reverse phase ine phase is ounter measure of the problem is li h i C f th blem i replaced completed by phase replacement NO gt Replace outside unit PC board V2820 Troubleshooting 209 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 39 Uc Power Supply Insufficient or Instantaneous Failure Remote Controller Display Applicable RWEYQ60 72 8AMTJU Models Method of Detection of voltage of main circuit capacitor built in the inverter and power supply voltage Malfunction Detection Malfunction When the capacitor above only has a voltage of 190V or less Decision Conditions Supposed W Abnormal power supply voltage Causes m instantaneous power failure W Open phase Faulty inverter PCB m Faulty control PCB Faulty compressor m Faulty wiring in the main circuit m Faulty connection of signal line 210 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check for the power supply conditions Do
266. ng an addition for heating for indoor fan motor heat Anechoic chamber conversion value measured under JISB8616 conditions During actual operation these values are normally somewhat higher as a result of installation conditions 2 32 Specifications SiUS30 604 Specifications Wall Mounted Type Model FXAQ18MVJU FXAQ24MVJU 1 Cooling Capacity Btu h 18 000 24 000 Heating Capacity Btu h 20 000 27 000 Casing Color White 3 0Y8 5 0 5 White 3 0Y8 5 0 5 Dimensions HxWxD in 11 3 8x41 3 8x9 11 3 8 41 3 8 9 Coil Cross RowsxStagesxFPI 2x14x17 2x14x17 Fin Coil Face Area ft 2 20 2 20 Model QCL9686 QCL9686 Type Cross Flow Fan Cross Flow Fan Fan Motor Output HP 0 058 0 058 Air Flow Rate H L cfm 500 400 635 470 Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polystyrene Foamed Polyethylene Foamed Polystyrene Foamed Polyethylene Air Filter Resin Net Washable Resin Net Washable Liquid Pipes in 1 4 Flare Connection 3 8 Flare Connection Piping Gas Pipes in 1 2 Flare Connection 95 8 Flare Connection Connections NE 7 VP13 VP13 Drain Pipe External Dia 11 16 Internal Dia 1 2 External Dia 11 16 Internal Dia 1 2 Machine Weight Mass Lbs 31 31
267. ng the indoor unit electronic expansion valve is used for superheated degree control Refer to page 89 67 In heating the outside unit electronic expansion valve Y1E is used for superheated degree control Refer to page Reference values for superheated degree to be used in the judgment of wet operation 1 Suction gas superheated degree 37 4 F or less 2 Discharge gas superheated degree 59 F or less excluding when it is immediately after startup under drop control or other specific conditions The values above must be used only for reference purposes Even it is operated within the range above operation may be normal in other conditions 252 Troubleshooting SiUS30 604 Troubleshooting OP Unified ON OFF Coniroller CHECK 5 Check for excessive refrigerant charging In case of the VRV judgment must be made based on operation conditions in relation to pressure control and electronic expansion valve control Refer to the following criteria to make such decisions Diagnosis of excessive refrigerant charging 1 Since high pressure rises overload control is carried out and therefore capacity tends to be insufficient 2 Since superheated degree of suction gas decreases or it starts wet operation the temperature of the compressor discharge pipe drops too much for pressure applied 3 Since the subcooling degree of condensate liquid increases the temperature of air blown through subcooled part de
268. ng Operation Only 89 Function 53 SiUS30 604 9 8 Heater Control uoc tenet ee a depen et et Eee 90 9 9 List of Swing Flap Operations re erae 91 9 10 Freeze Prevention 1 92 Function 54 SiUS30 604 Function General 1 Function General 1 1 Symbol Symbol Electric symbol Description or function 20S1 Y5S Four way valve Main 20S2 Y7S Four way valve For heat exchanger DSH Discharge pipe superheat DSHi Discharge pipe superheat of inverter compressor EV Y1E Opening of electronic expansion valve EV1 1 Electronic expansion valve for water heat exchanger EV3 YSE Electronic expansion valve for sub coolig heat exchanger HTDi NE Value of INV compressor discharge pie temperature R3T compensated with outdoor air temperature Pc S1NPH Value detected by high pressure sensor Pe S1NPL Value detected by low pressure sensor SH Evaporator outlet superheat SHS Target evaporator outlet superheat SVG Y4S Solenoid valve for discharging gas from receiver SVL Y3S Solenoid valve for gas charging to receiver SVE Y2S Solenoid valve for oil collection from water heat exchanger SVP Y1S Solenoid valve
269. ng from Outside Unit 110 Actuation of High Pressure Switch 173 Setting by dip switches 110 Actuation of Low Pressure Sensor 175 Setting by pushbutton switches 111 Address Duplication of Freeze Prevention 92 Centralized Controller 22222222222 223 Functional Parts Layout 41 Address Duplication Improper Setting 234 242 akha 166 H Air Flow Direction Setting 105 High Pressure Protection Control 70 pM Prd no com MPO Bb api oh al in 167 nM E ERE 184 Applicable range of Field setting 103 I B Improper Combination of Optional Controllers for BSVQ36 tacked 40 Centralized Control 232 240 Indoor xxii ter USA 221 Inverter Compressor Abnormal 197 168 Inverter Current Abnormal 222 198 CO ree 169 Inverter Over Ripple Protection 203 GO ud ta I Mm LUE 170 Inverter Protection Control see 74 Centralized
270. ning ON the power supply to the indoor and outside units H2P will turn ON and the compressor will not operate Referring to information in table in 1 1 2 Turning ON power supply on page 94 check to be sure the LED displays are normal and then operate the compressor For the outside multi system outside unit to which the indoor unit connecting wires are connected serves as the master unit Be sure to make settings with pushbutton switches on the master unit No malfunctions can be checked on individual indoor unit After the completion of this test operation check the individual indoor unit for any malfunctions while in normal operation mode using the remote controller While in check operation mode the indoor units as well as the outside units start the operation Do not attempt to conduct the check operation while working on the indoor unit Work with all the outside panels closed except for the switch box While in the test operation operating sounds such as refrigerant passing sounds or solenoid valve switching sounds may become louder In the case of multi outside unit system make setting on the master unit PC board Setting with the slave unit is disabled 96 Test Operation SiUS30 604 Test Operation Malfunction code LED display in the case of multi outside unit system Same as that in emergency operation Discriminate the operating status of the master unit slave units through the foll
271. nit power supply is OFF W System address doesn t match m Defect of indoor unit PC board W Defect of outside unit PC board Troubleshooting 213 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Has the indoor or outside unit PC board been replaced or has the indoor outside or outside outside unit transmission wiring been modified YES Push and hold the RESET button on the master outside unit PC Board for 5 seconds The unit will not operate for up to 12 minutes All indoor unit femote controllers of the same refrigerant system lt outdoor and outside gt YES outside unit transmission Replace the indoor unit PC Board Fix the indoor outside unit transmission wiring Reset the power supply Outside unit PC board microcomputer monitor HAP blinks Voltage betweeri terminals L1 L2 and L3 of X1M terminal is 208 230 V Supply 208 230 V The fuse on the outside unit s PC board is burnt YES Replace the fuse The Secondary voltage of the transformer is about 22 V Replace the transformer replacement Replace outside unit PC board A1P Operation ready lamp H2P is blinking Lamp does not go off
272. nternal Dia 1 External Dia 1 1 4 Internal Dia 1 Machine Weight Mass Lbs 69 73 95 5 Sound Level H L dBA 41 35 44 38 44 38 Safety Devices Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve Connectable outdoor unit R 410A Series R 410A Series R 410A Series BYBS32DJW1 BYBS45DJW1 BYBS71DJW1 pecan Panel Color White 10Y9 0 5 White 10Y9 0 5 White 10Y9 0 5 Option Dimensions HxWxD in 2 1 8 x 25 5 8 x 19 5 8 2 1 8x 31 1 2 x 19 5 8 2 1 8 x 43 1 4 x 19 5 8 Weight Lbs 6 6 7 7 9 9 Standard Accessories Operation Manual Installation Manual Paper Pattern for Installation Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Washers Operation Manual Installation Manual Paper Pattern for Installation Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Washers Operation Manual Installation Manual Paper Pattern for Installation Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Washers Drawing C 3D042684 Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping length 25ft Horizontal 2 Nominal heating capacities are based
273. nting of Switch Box SSS AS lt Caspa Sasa o Screw Unscrew the mounting screws 5 5 na 47 000 m har y um nai les ee ee gt X Connect Disconnect the wirings Procedure for Mounting Dismounting of Switch Box 257 Procedure for Mounting Dismounting of Switch Box SiUS30 604 258 Procedure for Mounting Dismounting of Switch Box SiUS30 604 Part 8 Appendix T Piping Diagrams rcd to ceca hese hese ays da 260 pcr 260 1 2 Indoor 9 iret rte heater o ree t eL Re ex s 261 1 3 ISIN esc PE 263 2 DIAQUAIMS eerie HER dank aii rti du t n RE E ru 264 2 1 Outside DF ER e ded led be dea e UA c 264 2 2 Outside Unit Field Wiring atate e x Re Re ganan uada 265 2 3 Indoor UN tt n d tte EX ERER 267 2 4 TSIM cha RE 271 3 List of Electrical and Functional Parts 272 Sil Oqutsid Unitu u uu u uu uu re un vedono LU in GAB dg 272 does Indoor SIde u a cus nts at 273 2 Option EISE ineo nuypas aqu aen anasu a AERIS ROSSO RM ERE NER END UA 276 43 Optional ACCESSONCS pe ice pec adus 276 5 Thermistor
274. o Fan Sirocco Fan Motor Output HP 0 08 0 08 0 08 Fan Air Flow Rate H L cfm 280 226 H L 280 226 H L 280 226 H L vy dan Static Pressure Pa 30 10 30 10 30 10 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polyethylene Foamed Polyethylene Foamed Polyethylene Air Filter Removal Washable Mildew Proof Removal Washable Mildew Proof Removal Washable Mildew Proof Liquid Pipes in 91 4 Flare Connection 1 4 Flare Connection 1 4 Flare Connection Piping Gas Pipes in 1 2 Flare Connection 1 2 Flare Connection 1 2 Flare Connection Connections nma a VP20 VP20 VP20 Drain Pipe External Dia 1 1 32 Internal Dia 25 32 External Dia 1 1 32 Internal Dia 25 32 External Dia 1 1 32 Internal Dia 25 32 Machine Weight Mass Lbs 51 51 51 5 Sound Level H L dBA 33 29 33 29 33 29 Safety Devices Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve Connectable outdoor unit R 410A Series R 410A Series R 410A Series Standard Accessories Operation Manual Instal
275. of High Pressure Switch Remote Controller Display Applicable RWEYQ60 72 84 Models Method of Detect conductive property of the high pressure switch with the protector circuit Malfunction Detection Malfunction When the protector circuit is partially opened Decision For reference Working pressure for the high pressure switch Conditions Working pressure 580psi Return pressure 413psi Supposed m High pressure switch operation Causes m Faulty high pressure switch Faulty main PCB W Temporal power failure m Faulty high pressure sensor m Insufficient heat source water W Dirty water heat exchanger Troubleshooting 173 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the following items Is the stop valve open Q Is the connector for HPS properly connected to the main PCB 3 Is the high pressure switch electrically conductive Are all of the above conditions satisfied NO gt Improve defects Set up a pressure gauge in the high pressure service port e Connect the Service Checker e Restart operation after resetting operation with a remote controller Is HPS working value 580psi normal Can the YES emergency stop b repeated NO Rep
276. ol gt SLAVE turn the power supply off once and then back on Operation feturns to normal the power is turned off omentarily All indoor PC board microcomputer Replace indoor unit PC monitors blink board There is possibility of malfunction caused by noise Check the surrounding area and turn on again Multi core cable is used for the indoor YES Switch to double core unit remote controller independent cable transmission wiring replacement NO gt Defect of remote controller PC board or indoor unit PC board Replace whichever is defective V2823 Troubleshooting 215 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 43 U Malfunction of Transmission between Outside Units Remote Controller Display Applicable RWEYQ60 72 8AMTJU Models Method of Microcomputer checks if transmission between indoor unit and remote controller is normal Malfunction Detection Malfunction When transmission is not carried out normally for a certain amount of time Decision Conditions Supposed W improper connection of transmission wiring between outside unit and external control adaptor Causes for outdoor unit Improper cool heat selection m improper cool heat unified address outside unit external control adaptor for outdoor unit W Defect of outside unit PC board A1P W Defect of external control adaptor for outdoo
277. ol to maintain Te at constant during cooling operation and Tc at constant during heating operation to ensure stable unit performance Cooling operation Controls compressor capacity to adjust Te Te Low pressure equivalent saturation temperature achieve target value TeS F Te setting TeS Target Te value L M Normal H Varies depending on Te setting operating frequency factory etc setting 37 4 42 8 48 2 Heating operation Controls compressor capacity to adjust Tc to High pressure equivalent saturation temperature achieve target value TcS F Tc setting TcS Target Tc value L M Normal H Varies depending on Tc setting operating frequency factory etc setting 109 4 114 8 120 2 Cooling Heating simultaneous operation Controls compressor capacity to adjust Te to achieve target value TeS and Tc to achieve target value TcS at the same time Te setting L M Normal H Te Low pressure equivalent saturation temperature factory F setting TeS Target Te value 37 4 42 8 48 2 depending on Te setting operating frequency Tc setting L M Normal H Tc High pressure equivalent saturation temperature factory CF setting TcS Target Tc value 109 4 1148 120 2 4 depending on Tc setting operating frequency Function 65
278. oller Enters malfunction treatment if the float switch is not reset within 5 minutes di i Remote controller flashing Remote controller display running rnaltunction Stag display ON Float switch OFF ON Drain pump OFF X1 5min 9 1 X1 X1 3 1 3 1 VL011 Note If the float switch is tripped five times in succession drain malfunction is determined to have occurred AF is then displayed as operation continues 84 Function SiUS30 604 Outline of Control Indoor Unit 9 2 Louver Control for Preventing Ceiling Dirt We have added a control feature that allows you to select the range of in which air direction can be adjusted in order to prevent the ceiling surrounding the air discharge outlet of ceiling mounted cassette type units from being soiled This feature is available on double flow multi flow and corner types C Existing position PO P1 P2 P3 P4 Draft prevention position Standard Setting Ceiling soiling prevention position position Not for Multi flow type PO PO P1 NN P2 P3 P4 PO P4 py i um s x por p4 P3 pa Draft prevention Same as existing position position Range of direction adjustment Standard Prohibited Separated into 5 positions position P1 4 Range of direction adjustment Dir ULIS prevention Prohibited P1 P4 eparated
279. oller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting L4 RWEYQ60 72 84MTJU Fin temperature is detected by the thermistor of the radiation fin When the temperature of the inverter radiation fin increases above 98 C m Actuation of fin thermal Actuates above 98 C Defect of inverter PC board Defect of fin thermistor N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Temperature of the radiator fin rises Actuates at min 208 F e Radiator fin is dirty NO e Outdoor temperature is high YES gt Defect of power unit radiation e Intake port is clogged Resistance Abnormal check of the radiator fin Replace the thermistor thermistor Normal Is reset possible gt Replace the inverter PC board YES gt Reset and operate V2811 2 Refer to thermistor resistance temperature characteristics table on P278 196 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 30 LS Outside Unit Inverter Compressor Abnormal Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting L5 RWEYQ60 72 84MTJU Malfunction is detected from current
280. om 82 F to 73 F D B Body thermostat sensor is used for temperatures from 73 F to 64 F B Function 87 Outline of Control Indoor Unit SiUS30 604 9 4 Thermostat Control While in Normal Operation VRV multi systems are set at factory to thermostat control mode using the remote controller While in normal thermostat differential control mode i e factory set mode the thermostat turns OFF when the system reaches a temperature of 1 8 F from the set temperature while in cooling operation or of 1 8 F from that while in heating operation Tr lt Set temperature 1 8 F Cooling operation Eu Thermostat OFF Tr Temperature detected with the suction air thermistor R1T Tr gt Set temperature 1 8 F Heating operation Aoma Thermostat OFF While in a single remote controller group control the body thermostat is only used from this control Furthermore while in heating operation cassette mounted indoor units conduct the thermostat control by a value compensated by 3 6 F for the value detected with the body thermostat Through field settings the thermostat differential setting can be changed from 1 8 F to 0 9 F For details on the changing procedure refer to information on page onward 9 5 Thermostat Control in Dry Operation While in dry operation the thermostat control is conducted according to a suction temperature at the time of starting the dry operation Assuming
281. on When the suction pipe pressure sensor is short circuit or open circuit Decision Conditions Supposed m Defect of low pressure sensor system Causes W Connection of high pressure sensor with wrong connection W Defect of outside unit PC board Troubleshooting 193 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred pressure sensor is connected to X45A blue Ne of outside unit PC board A1P relationship between the 1 VH and low pressure is normal see 2 when voltage YES gt Connect low pressure sensor property and restart system is measured between X45A pins 2 and 3 of outside unit PC board A1P see 1 gt Replace outside unit PC board A1P 1 Voltage measurement point gt Replace the low pressure sensor V2808 Outside unit PC board 2 45V X45A 4 Red A GND 3 l Black Z I Microcomputer 2 White 3 A D input a 5 n E 2 Measure voltage here V2809 2 Refer to pressure sensor pressure voltage characteristics table on P280 194 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 28 1 Outdoor Unit Malfunction of PC Board Remo
282. on the Remote Controller 2 24 JT Malfunction of Liquid Pipe Thermistor R6T Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting di RWEYQ60 72 84MTJU Malfunction is detected according to the temperature detected by receiver outlet liquid pipe thermistor When the liquid pipe thermistor is short circuited or open m Faulty liquid pipe thermistor 6 m Faulty outside unit PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the connector for receiver Outlet liquid pipe thermistor connected to X37A on outside unit PC board A1P NO gt Connect the connector and operate unit again Is the resistance measured after removing the thermistor R6T from outside unit PC board normal 3 5 kQ to 360 NO gt Replace thermistor R6T Replace outside unit PC board A1P V3075 2 Refer to thermistor resistance temperature characteristics table on P278 Troubleshooting Troubleshooting by Indication on the Remote Controller SiUS30 604 2 25 J9 Malfunction of Sub Cooling Heat Exchanger Outlet Thermistor R5T Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Sup
283. onal controllers for centralized control Is the power supply turned on for all optional controllers for centralized control Turn on power supply for all optional controllers for centralized control YES Is the reset switch of all optional controllers for centralized control set to normal YES Is transmission wiring YES disconnected or wired gt Fix the wiring correctly incorrectly NO N gt Set reset switch to normal Is a central remote controller or schedule timer connected central remote controller or schedule timer displaying a malfunction YES Refer to failure diagnosis for central remote controller or schedule timer Is the setting of the unified ON OFF controller s switch for setting each address duplicated Are two or more unified ON OFF controllers connected Correct the setting of the unified ON OFF controller s switch for setting each address and reset the power supply of the unified ON YES OFF controller V2842 246 Troubleshooting SiUS30 604 Troubleshooting OP Unified ON OFF Controller Is the wiring adaptor for YES electrical appendices gt Cannotbeusedin connected combination with a wiring adaptor for electrical appendices Remove the wiring adaptor for electrical appendices and reset the power supply for all optional control
284. onnection SiUS30 604 Piping Diagrams 1 2 Indoor Unit FXFQ 12M 18M 24M 30M 36MVJU FXSQ 12M 18M 24M 30M 36M 48MVJU FXMQ 30M 36M 48MVJU FXHQ 12M 24M 36MVJU FXAQ 07M 09M 12M 18M 24 FXLQ 12M 18M 24MVJU FXNQ 12M 18M 24 Gas piping connection port Heat exchanger R3T Y ii Liquid piping connection port CN Filter Electronic Filter expansion valve J DU220 602J R1T Thermistor for suction air temperature R2T Thermistor for liquid line temperature Thermistor for gas line temperature Capacity GAS Liquid 07 09 12 18M 1 2 1 4 24 30 36 48M 5 8 93 8 Appendix 261 Piping Diagrams SiUS30 604 FXDQ Gas side Liquid side 7 Electronic I expansion valve Filte Filter ZN Fan C 2 D Indoor heat exchanger 4D043864H m Refrigerant pipe connection port diameters Model Gas Liquid FXDQO7M 09M 12M 18MVJU 91 2 91 4 FXDQ24MVJU 95 8 03 8 262 Appendix Piping Diagrams SiUS30 604 1 3 BSUnit BSVQ36MVJU BSVQ60MVJU Suction
285. ontroller Mode 43 only can be set 2 Select the unit No For group control only Select the indoor unit No to be set with the time mode For wireless remote controller CO button 3 Make the settings required for each mode Modes 41 44 45 In case of Mode 44 45 push button to be able to change setting before setting work LCD code blinks For details refer to the table in next page 4 Define the setting contents Modes 44 45 Define by pushing the timer button After defining LCD code changes blinking to ON 5 Return to the normal operation mode Push the button one time Troubleshooting 145 Troubleshooting by Remote Controller SiUS30 604 Mode No Function Contents and operation method Remote controller display example qD Malfunction hysteresis display Display malfunction hysteresis The history No can be changed with the button Unit 1 n Malfunction code Li 2 04 Malfunction code Hystory No 1 9 1 Latest 007 Display of sensor and address data Display various types of data Select the data to be displayed with the button Sensor data 0 Thermostat sensor in remote controller 1 Suction 2 Liquid pipe 3 Gas pipe Address data 4 Indoor unit address 5 Outside unit address 6 BS unit address 7 Zone control address 8 Cool heat group address 9 Demand low noise address Sensor data d
286. oor temp 80 FDB 67 FWB inlet water temp 85 F outlet water temp 95 F Equivalent piping length 25ft level difference Oft Indoor temp 70 FDB 60 FWB inlet water temp 70 F Equivalent piping length 25ft level difference Oft 3 In the case of heat pump system suction gas pipe is not used 4 In the case of heat recovery system 5 In the case of heat pump system 2 This unit cannot be installed outdoors Install indoors Machine room etc 3 Hold ambient condition at 35 95 F 80 RH Heat rejection from the casing 0 71KWx3 4 There are some cases where capacity decreases depending on operating states 22 Specifications SiUS30 604 Specifications 1 2 BS Units Model BSVQ36MVJU BSVQ60MVJU Power Supply 60Hz 208 230V 60Hz 208 230V Total Capacity Index of Connectable Indoor Unit Less than 36 Less than 60 No of Connectable Indoor Units Max 3 Max 5 Casing Galvanized Steel Plate Galvanized Steel Plate Dimensions HxWxD in 7 1 4 x 12 1 4 x 11 7 1 4 x 12 1 4 x 11 Sound Absorbing Thermal Insulation Material Flame and Heat Resistant Foamed Polyethylene Flame and Heat Resistant Foamed Polyethylene Indoor Liquid Pipes 3 8 Flare Connection 1 3 8 Flare Connection Unit Gas Pipes 5 8 Flare Connection 1 5 8 Flare Connection io u Liquid Pipes 3 8 Flare Connection 1 3 8 Flare Connection Qutsig
287. oper connections can cause excessive heat generation or fire When connecting the cable between the indoor and outside units make sure that the terminal cover does not lift off or dismount because of the cable If the cover is not mounted properly the terminal connection section can cause an electrical shock excessive heat generation or fire Do not damage or modify the power cable Damaged or modified power cable can cause an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable can damage the cable Do not mix air or gas other than the specified refrigerant R 410A in the refrigerant system If air enters the refrigerating system an excessively high pressure results causing equipment damage and injury If the refrigerant gas leaks be sure to locate the leak and repair it before charging the refrigerant After charging refrigerant make sure that there is no refrigerant leak If the leak cannot be located and the repair work must be stopped be sure to perform pump down and close the service valve to prevent the refrigerant gas from leaking into the room The refrigerant gas itself is harmless but it can generate toxic gases when it contacts flames such as fan and other heaters stoves and ranges When replacing the coin battery in the remote controller be sure to disposed of the old battery to prevent children from swallowing it If a child swallows the coin bat
288. or Fan Motor Fuse Thermal Protector for Fan Motor Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve Connectable Outdoor Unit R 410A Series R 410A Series R 410A Series Operation Manual Installation Manual Operation Manual Installation Manual Operation Manual Installation Manual Standard Accessories Insulation for Fitting Drain Hose Insulation for Fitting Drain Hose Insulation for Fitting Drain Hose Clamps Screws Washers Level Clamps Screws Washers Level Clamps Screws Washers Level Adjustment Screw Adjustment Screw Adjustment Screw Drawing No 30045640 Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping length 25ft Horizontal 2 Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping length 25ft Horizontal 3 Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat Nominal heating capacities are based on the following conditions these values are normally somewhat higher as a result of installation conditions Anechoic chamber conversion value measured under JISB8616 conditions During actual operation Specifications 35 Specifications SiUS30 604 36 Specifications SiUS30 604 1 2 3 Part 3 Refrigerant Circuit Remn
289. orator mixed To other indoor units High temperature high pressure gas T i High temperature high pressure liquid Bs unit g pi high p iq I ndoor unit in Fan ON Outside unit 1 Outside unit 2 Outside unit 3 Low temperature low pressure liquid or gas 77 9 Heat exchanger 7 7 7 i vale d E 7 i 7 E EE TE 7 7 E 7 7 7 7 n 7 N Ja mE gm UU qunm Solenoid valve Filter Solenoid valve filter fusible plus plug SVSL OFF gt plug Electronic Heat exchanger pine expansion valv SVSL OFF Heat exchanger us MINAN Heat exchanger ow expansion valve Cooling 9 G x P gt Water Water e Water ON E inlet inlet inlet Electronic i amp zz i 1 expansion valve Pq Plate heat gt Plate heat gt lt Plate heat eV Q i control Solenoid valve exchanger 85 Solenoid valve exchanger Solenoid valve exchanger Ce val 5 Chect vil Chect vil Check valve Electronic Gp Ch
290. otor OutputxNurnber kW 3 6x3 Starting Method Soft Start Liquid Pipe in 5 8 in C1220T Flare Connection Main Line Suction Gas Pipe in 1 3 8 in C1220T Brazing Connection x3 Main Line Connecting Discharge Gas Pipe in 4 1 1 8 in C1220T x5 1 3 8 in C1220T Brazing Connection Main Line Pipes Water inlet 1 1 4 FPT Female Thread Water outlet 1 1 4 FPT Female Thread Drain outlet 1 2 FPS Female Thread Machine Weight Mass Lbs 330 330 330 Safety Devices High Pressure Switch Inverter Overload Protector Fusible Plugs Capacity Control 90 8 100 Refrigerant Name R 410A Refrigerant Charge Lbs 9 9 9 9 9 9 Control Electronic Expansion Valve Refrigerator Oil Synthetic Ether Oil Standard Accessories Installation Manual Operation Manual Connection Pipes Clamps Strainer Conduit Mounting Plate Drawing No 4D054575D Notes 1 1 Indoor temp 80 FDB 67 FWB inlet water temp 85 F outlet water temp 95 F Equivalent piping length 25ft level difference Oft Indoor temp 70 FDB 60 FWB inlet water temp 70 F Equivalent piping length 25ft level difference Oft 3 In the case of heat pump system suction gas pipe is not used 4 In the case of heat recovery system 5 In the case of heat pump system 2 This unit cannot be installed outdoors Install indoors Machine room etc 3 Hold ambient condition at 35 95 F 80 RH Heat rejection from the casing 0 64KWx3 4 There are some cases where capacity de
291. ous wiring Press and hold the TEST 2 Check whether or not the stop valve is failed to open OPERATION button BS4 on the 3 Check the refrigerant for overcharging outside PC board for a period of 5 4 Judge the piping length automatically NY The H2P blinks during operation and TEST OPERATION and UNDER CENTRALIZED CONTROL are displayed on the remote controller There may be cases where a period of approximately 10 minutes are required for the compressor to start up which however is not a malfunction but used to ensure even refrigerant conditions 3 The check operation will be automatically conducted in cooling mode 4 order to stop the compressor operation press the CHECK button BS3 The compressor will stop after the completion of residual operation for a period of approximately 30 seconds The compressor operation cannot be stopped from the remote controller After the completion of check operation check the operation Completion of check operation results through the LED displays For abnormal completion code on the remote controller and then rectify the malfunction according to information in the Troubleshooting For normal completion e ejojeje Check the malfunction lt Precautions for check operation If the test operation is started within approximately 12 minutes after tur
292. owing LED display LED display O ON OFF Blink H1P H7P H8P Master o Slave 1 0000000 o Slave 2 0000000 Factory set In case of an alarm code displayed on remote controller Malfunction code Installation error Remedial action E3 The shutoff valve of an outside unit is left closed Open the shutoff valve 4 The cooling water is not provided Check the operation of cooling water pump etc F3 F6 UF U2 U1 The phases of the power to the outside units are Exchange two of the three phases L1 L2 L3 to reversed make a positive phase connection 04 No power is supplied to an outside or indoor unit Check if the power wiring for the outside units are including phase interruption connected correctly If the power wire is not connected to L2 phase no malfunction display will appear and the compressor will not work UF Incorrect transmission between units Check if the refrigerant piping line and the unit transmission wiring are consistent with each other E3 Refrigerant overcharge Recalculate the required amount of refrigerant from F6 the piping length and correct the refrigerant charge UF level by recovering any excessive refrigerant with a U2 refrigerant recovery machine 4 Insufficient refrigerant m Check if the additional refrigerant charge has been F3 finished correctly m Recalculate the required amount of refrigerant from the piping length
293. p valve d 20S2 ON 0 pulse 0 pulse Sub cooling electronic exp valve EV3 0 pulse 0 pulse Hot gas bypass solenoid valve SVP Y1S ON OFF Water heat exch oil return solenoid valve SVE Y2S OFF OFF Receiver gas charging solenoid valve 5 5 OFF OFF Receiver gas discharge solenoid valve svG Y4S OFF OFF Non operation unit liquid pipe stop solenoid valve SVSL Y6S OFF ON Indoor cooling unit fan M1 2F No instruction Indoor cooling unit expansion valve EV Y1E All 0 pulse Indoor heating unit fan M1 2F No instruction Indoor heating unit expansion valve EV Y1E All 500 pulse BS 20RH 20RH Y3S BS unit control BS 20RT 20RT Y1S OFF Ending condition 80 Function SiUS30 604 Special Operation 7 4 Refrigerant Drift Prevention Refrigerant drift prevention control is carried out in order to prevent refrigerant drift among outside units during heating operation using outside multiple connection Excessively charged refrigerant in outside units are collected and transferred to other outside units that are running out of gas by controlling the solenoid valve 1 In case of cooling heating changeover connection When the superheated at the evaporator outlet degree is large open the solenoid valve SVG for venting receiver gas of the outside units that are running out of gas When the superheated degree at the evaporator outlet is large Normal operatio
294. pacity setting adaptor and the memory inside the IC memory on the indoor unit PC board and whether the value is normal or abnormal is determined Operation and 1 When the capacity code is not contained in the PC board s memory and the capacity setting adaptor is not connected 2 When a capacity that doesn t exist for that unit is set W You have forgotten to install the capacity setting adaptor m Defect of indoor unit PC board Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Caution The indoor unit PC board was replaced with a replacement PC board NO gt Replace the indoor unit PC board The indoor unit is a model that requires installation of a capacity setting adaptor when replacing the PC board NO gt Replace the indoor unit PC board gt Install a capacity setting adaptor V2783 Troubleshooting 167 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 9 C4 Indoor Unit Malfunction of Thermistor R2T for Heat Exchanger Remote Controller Display Applicable All indoor unit models Models Method of Malfunction detection is carried out by temperature detected by heat exchanger thermistor Malfunction Detection Malfunction When the heat exchanger thermistor becomes disconnected or shorted while the unit is running Decision Conditions Supposed W De
295. peration SiUS30 604 Part 6 Troubleshooting 1 Troubleshooting by Remote Controller 140 1 1 The INSPECTION Z TEST Buttlon 140 1 2 Self diagnosis by Wired Remote Controller 141 1 3 Self diagnosis by Wireless Remote 142 1 4 Operation of the Remote Controller s Inspection Test Operatiorr eacus atte eros tu pr ie Hase is 144 1 5 Remote Controller Service 145 1 6 Remote Controller Self Diagnosis Function 147 2 Troubleshooting by Indication on the Remote Controller 154 2 1 Indoor Unit Error of External Protection Device 154 2 2 AP Indoor Unit PC Board Delect orco arte d du Pete uet eet 155 2 3 AZ Indoor Unit Malfunction of Drain Level Control System 511 156 2 4 AS Indoor Unit Fan Motor M1F Lock Overload 158 2 5 HT Indoor Unit Malfunction of Swing Flap Motor MA 162 2 6 AS Indoor Unit Malfunction of Moving Part of Electronic Expansion Valve 164 2 7 Indoor Unit Drain Level above Limit 1
296. peration by plugging or unplugging the power cable plug Plugging or unplugging the power cable plug to operate the equipment can cause an electrical shock or fire OPO DA vii Introduction SiUS30 604 AN Caution Do not repair the electrical components with wet hands Working on the equipment with wet hands can cause an electrical shock Do not clean the air conditioner by splashing water Washing the unit with water can cause an electrical shock Be sure to provide the grounding when repairing the equipment in a humid or wet place to avoid electrical shocks Be sure to turn off the power switch and unplug the power cable when cleaning the equipment The internal fan rotates at a high speed and cause injury Do not tilt the unit when removing it The water inside the unit can spill and wet the furniture and floor Be sure to check that the refrigerating cycle section has cooled down sufficiently before conducting repair work Working on the unit when the refrigerating cycle section is hot can cause burns Use the welder in a well ventilated place Using the welder in an enclosed room can cause oxygen deficiency e AGO 1 1 2 Cautions Regarding Products after Repair A Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropria
297. posed Causes Troubleshooting JS RWEYQ60 72 84MTJU Malfunction is detected according to the temperature detected by sub cooling heat exchanger outlet thermistor When the sub cooling heat exchanger outlet thermistor is short circuited or open m Faulty receiver gas pipe thermistor R5T m Faulty outside unit PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred the connector for oil equalizing pipe thermistor connected to X37A on outside unit PC board A1P NO Connect the connector and operate unit again Is the resistance measured after removing the thermistor from outside unit PC board normal 8 5 kO to NO gt Replace thermistor 5 Replace outside unit PC board A1P V3075 2 Refer to thermistor resistance temperature characteristics table on P278 190 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 26 JA Outside Unit Malfunction of Discharge Pipe Pressure Sensor Remote JA Controller Display Applicable RWEYQ60 72 8AMTJU Models Method of Malfunction is detected from the pressure detected by the high pressure sensor Malfunction Detection Malfunction When the discharge pipe pressure sensor is short circuit or open circuit Decision Conditions Supposed m Defect of high pressu
298. prevent the increase of pressure when abnormal heating is caused by V Fusible plug fire or others the fusible part of the plug is molten at a temperature of 158 to 167 F to release the pressure into the atmosphere M This valve opens at a pressure of 580psi or more for prevention of pressure 12 regulating valve 1 Liquid increase thus resulting in no damage of functional parts due to the increase of pipe to discharge pipe pressure in transportation or storage Used to detect suction pipe temperature keep the suction superheated degree 2 R2T Thermistor Suction pipe Ts constant in heating operation and others Used to detect discharge pipe temperature make the temperature protection 3 R3T Thermistor INV discharge pipe Tdi control of compressor and others Thermistor Heat exchanger gas pipe Used to detect gas pipe temperature of water heat exchanger 6 RAT Tg Thermistor Sub lina heat Used to detect gas pipe temperature on the evaporation side of sub cooling heat 7 R5T or il pies 9 19 exchanger keep the superheated degree at the outlet of sub cooling heat exchanger outlet pipe Tsh exchanger constant and others Thermistor ilet liquid Used to detect receiver outlet liquid pipe temperature prevent the drift between 8 ReT Th or Receiver outlet liqui outdoor units while in heating operation in the case of multiple outside unit pipe TI system and others 38 Refrigerant Circuit SiUS30 604 Refr
299. ptional Controllers for Centralized Control Remote na Controller Display Applicable Central remote controller Models Method of Detect the malfunction according to DIII NET transmission data The system will be automatically Malfunction reset Detection Malfunction When no master controller is present at the time of the startup of slave controller Decision When the centralized controller which was connected once shows no response Conditions Supposed m Malfunction of transmission between optional controllers for centralized control Causes Defect of PC board of optional controllers for centralized control 230 Troubleshooting SiUS30 604 Troubleshooting OP Central Remote Controller Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Has a once connected optional controller for centralized control been disconnected or its address changed YES Reset power supply simultaneously for all optional controllers for centralized control Is the power supply i NO optional gt Turn on power supply for all centralized optional controllers for centralized control control the reset switch of all optional controllers NO amp 5 for centralized control set gt Set reset switch to normal to normal Is transmission wiring YES T E disconn
300. r Unit 224 Self diagnosis by Wireless Remote Controller 142 Malfunction of Transmission between Centralized Setting of Air Flow Direction Controller and Indoor Unit 235 Adjustment Range 105 Malfunction of Transmission between Indoor and Setting of Demand Operation 125 Outside Units in the Same System 219 Image of operation in the case of A 127 Malfunction of Transmission between Image of operation in the case of A and B 127 Indoor Units 213 Image of operation in the case of B 127 Malfunction of Transmission between Inverter and Setting of Refrigerant Additional Control PC Board 201 Charging Operation 129 Malfunction of Transmission between Master and Check Operation 134 Slave Remote Controllers 218 In the Case of Multi Outside Unit System 135 Malfunction of Transmission between Optional Simplified Remote Controller 101 Controllers for Centralized Control 230 238 Malfunction of Transmission between T Outside Units ees 216 Test Operation 94 Malfunction of Trans
301. r centralized control again The controller connected by the connector for setting master controller when the malfunction is cleared is defective and must be replaced V2834 Troubleshooting 233 Troubleshooting OP Central Remote Controller SiUS30 604 3 4 Address Duplication Improper Setting Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Central remote controller Detect the malfunction according to DIII NET transmission data Two units are both set to master controller mode or slave controller mode m Address duplication of centralized remote controller N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Are two or more central remote controllers connected Disconnect all central remote controllers except one and reset the power supply of the central remote controller gt Reset power supply of the central remote controller V2835 234 Troubleshooting SiUS30 604 Troubleshooting OP Schedule Timer 4 Troubleshooting OP Schedule Timer 41 Malfunction of Transmission between Centralized Controller and Indoor Unit Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed
302. r unit W Improper connection of transmission wiring between outside units of multi outside unit connection 216 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the outside units multi NO connection transmission wiring normal indoor outside unit NO Fix the outside units multi connection transmission wiring and reset power transmission wiring normal YES C H SELECT is set to IND gt Fix the indior outside unit transmission wiring gt Replace the outside unit PC Board A1P Cool heat selection is NO unified YES C H SELECT YES gt Set C H SELECT to IND The cool heat unified is set to MASTER Check C H SELECT is set to SLAVE are normal els there continuity Outside unit unified master unit ie s there continuity YES Does a malfunction occur when set to IND and see if the following items External control adaptor for outdoor unit teDoes the cool heat unified address match i Does the cool heat unified address match the cool heat selector is address for outside units in outside outside unit transmission is duplicated Set the address correctly Fix the problem NO
303. ralized control and indoor unit Causes W Connector for setting master controller is disconnected W Failure of PC board for central remote controller m Defect of indoor unit PC board 224 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Has an indoor unit once connected been remove or its address YES Reset power supply simultaneously for all optional controllers for centralized control Is the power supply ome p Pr indoor units 2 gt Turn indoor unit s power isplaying malfunction ppiy Is transmission wiring disconnected or wired incorrectly YES gt Fix the wiring correctly Is transmission with all indoor units malfunctioning Is the group No of malfunctioning indoor units set Set the group No correctly Replace indoor unit PC board the transmission wiring with the master controller disconnected or wired incorrectly YES gt Fix the wiring correctly master controller s YES connector for setting gt Connect the connector master controller correctly disconnected NO gt Replace the central PC board V2829 Troubleshooting 225 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 49 UF Re
304. re 6 Anechoic chamber conversion value measured under JISB8616 conditions During actual operation these values are normally somewhat higher as a result of installation conditions 30 Specifications SiUS30 604 Specifications Ceiling Suspended Type Model FXHQ12MVJU FXHQ24MVJU FXHQ36MVJU 1 Cooling Capacity Btu h 12 000 24 000 36 000 Heating Capacity Btu h 13 500 27 000 40 000 Casing Color White 10Y9 0 5 White 10Y9 0 5 White 10Y9 0 5 Dimensions HxWxD in 7 11 16x37 13 16x26 3 4 7 11 16x55 1 8x26 3 4 7 11 16x62 5 8x26 3 4 Coil Cross RowsxStagesxFPI 2x12x15 3x12x15 2x12x1542x10x15 Fin Coil Face Area ft 1 96 3 15 3 66 2 95 Model 3D12K1AA1 3D12K2AA1 Type Sirocco Fan Sirocco Fan Sirocco Fan Fan Motor Output w 62 130 130 Air Flow Rate H L CFM 410 340 710 600 830 670 Drive Direct Drive Direct Drive Direct Drive Temperature Control Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Microprocessor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Glass Wool Glass Wool Glass Wool Air Filter Resin Net with Mold Resistant Resin Net with Mold Resistant Resin Net with Mold Resistant Liquid Pipes in 1 4 Flare Connection 93 8 Flare Connection 93 8 Flare Connection Piping Gas Pipes in 1 2 Flare Connection 5 8 Flare Connection 5 8 Flare Connection
305. re equalization control is used to equalize the pressure of discharge piping and suction piping in order to reduce refrigerant passing noise when changing over the BS units Starting conditions The temperature control of indoor units with thermostat ON does not match up with the state of the BS unit changeover valve to which the indoor units are connected Parts name Symbol DUE Pressure equalization control Compressor M1C 74Hz 4 way valve Main 2051 55 OFF 4 way valve for heat exchanger 2052 Y7S OFF Main electronic expansion valve EV1 Y1E 2000 pulse Sub cooling electronic expansion valve EV3 0 pulse Hot gas bypass solenoid valve SVP Y1S ON Water heat exch oil return solenoid valve SVE Y2S OFF Receiver gas charging solenoid valve SVL Y3S OFF Receiver gas SVG 45 Non operation unit liquid pipe stop SVSL Y6S ON Indoor cooling unit fan M1 2F No instruction Indoor cooling unit EV Y1E No instruction Indoor heating unit fan M1 2F OFF Indoor heating unit expansion valve EV Y1E 192 pulse Cooling No instruction BS 20RH 20RH Y3S Heating No instruction BS 20RT 20RT Y1S OFF Ending condition Max 5 min 64 Function SiUS30 604 Normal Control 5 Normal Control 5 1 Compressor Control 5 1 1 Compressor Control Compressor PI Control Carries out the compressor capacity contr
306. re sensor system Causes W Connection of low pressure sensor with wrong connection W Defect of outside unit PC board Troubleshooting 191 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred The high pressure sensor is connected to X46A of NO outside unit PC board A1P relationship between the 1 H and high pressure is normal see 2 when Connect the high pressure sensor and turn on again Replace outside unit PC board outside unit PC board A1P see 1 1 Voltage measurement point Outside unit PC board A2P SEXE Replace the high pressure sensor V2806 Microcomputer A D input 2 Measure DC voltage here X46A ic 1 Red 2 5 2 o 5 D white V2807 2 Refer to pressure sensor pressure voltage characteristics table on P280 192 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 27 JC Outside Unit Malfunction of Suction Pipe Pressure Sensor Remote uL Controller Display Applicable RWEYQ60 72 8AMTJU Models Method of Malfunction is detected from pressure detected by low pressure sensor Malfunction Detection Malfuncti
307. rection adjustment mE m Down flow operation Air flow direction _ _ _ A m adjustment range Field set fan speed _ _ selection E 1 Static pressure selection 3 1 6 Detailed Explanation of Setting Modes Filter Sign Setting If switching the filter sign ON time set as given in the table below Set Time Filter Specs Standard Long Life Ultra Long Life Filter Setting Contamination Light 200 hrs 2 500 hrs 10 000 hrs Contamination Heavy 100 hrs 1 250 hrs 5 000 hrs Ultra Long Life Filter Sign Setting When a Ultra long life filter is installed the filter sign timer setting must be changed Setting Table Mode No Setting Switch No Setting Position No Setting 01 Long Life Filter 10 20 02 Ultra Long Life Filter 1 03 Test Operation 103 Field Setting SiUS30 604 External ON OFF input This input is used for ON OFF operation and Protection device input from the outside The input is performed from the T1 T1 terminal of the operation terminal block X14 in the electric component box Tez riz SS Setting Table tti tti Operation by input of the signal A ON Forced stop prohibition of using the remote 01 controller OFF Permission of using the remote controller OFF gt ON Permission of
308. red Connector is connected to X34A N of outside unit 9 gt Connect the connector and turn on PC board again A1P YES Resistance is normal when measured after disconnecting the thermistor R3T from the outside unit PC board 3 5kQ 400kQ NO gt Replace the thermistor R3T Replace outside unit PC board V3072 186 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 22 JY Malfunction of Heat Exchanger Gas Pipe Thermistor R4T Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting RWEYQ60 72 84MTJU Malfunction is detected according to the temperature detected by heat exchanger gas pipe thermistor When the heat exchanger gas pipe thermistor is short circuited or open Faulty heat exchanger gas pipe thermistor R4T m Faulty outside unit PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred the connector for heat exchanger gas pipe thermistor connected to X37A on outside unit PC board A1P NO gt Connect the connector and operate unit again Is the resistance measured after removing the thermistor R4T from outside unit PC board normal 3 5 to NO gt Replace thermis
309. requirements The modular design imparts a simple and smart appearance and makes units easy to install Combination table for VRV WII Capacity Range Model Combination 5 ton RWEYQ60MTJU RWEYQ60MTJU 6 ton RWEYQ72MTJU RWEYQ72MTJU 7 ton RWEYQ84MTJU RWEYQ84MTJU 12 ton RWEYQ144MTJU RWEYQ72MTJUx2 14 ton RWEYQ168MTJU RWEYQ84MTJUx2 18 ton RWEYQ216MTJU RWEYQ72MTJUx3 21 ton RWEYQ252MTJU RWEYQ84MTJUx3 An outside unit multi connection piping kit optional is necessary for connection Series Lineup RWEYQ60MTJU Series Capacity Range 6 7 12 14 18 Heat pump type Q Q 5 7 ton 12 14 ton Heat recovery type Numbers of connectable indoor units 60Hz 18 O c 21 ton Capacity Range 5ton 7ton 12ton 14 ton 18 ton 21 ton Model AWEYOGOMTIU RWEYQTAMTUU RWEYQBAMTJU RWEYQ144M RWEYQ168M RWEYQ216M RWEYQ252M Number of connectable indoor units Up to 10 Upto 12 Up to 14 Up to 20 Up to 22 Up to 32 Number of connectable BS units Up to 10 Upto 12 Up to 14 Up to 20 Up to 22 Up to 32 Connectable capacity achat 50 130 of the rated capacity of the VRV WII Example system layouts Heat pump system For illustration purposes only General Information SiUS30 604 Model Names 2 Model Names
310. residual operation for a period of 5 minutes at maximum e When the check operation is not conducted using the TEST OPERATION button at the first test operation after installation the malfunction code U3 will be displayed Be sure to conduct the check operation according to 1 1 3 Check Operation Test Operation 97 Outside Unit PC Board Layout SiUS30 604 2 Outside Unit PC Board Layout Outside unit PC board 1 Microcomputer normal monitor 2 Set mode display LED 3 Mode setting switch 1234 1234 IE 051 052 I 2 2 24 2 t 27 x L 4 Local setting switch Connection terminal for transmission use Qi Q2 Indoor Outside Multi Switch cool heat Outside unit Outside unit outside unit V3054 1 Microcomputer normal monitor This monitor blinks while in normal operation and turns on or off when a malfunction occurs 2 Set mode display LED LEDs display mode according to the setting 3 Mode setting switch Used to change mode 4 Local setting switch Used to make local settings 98 Test Operation SiUS30 604 Field Setting 3 Field Setting 3 1 Field Setting from Remote Controller Individual function of indoor unit can be changed from the remote controller At the time of installation or after service inspection repair make the local setting in accordance with the fo
311. reventing Ceiling Dirt 85 ES bled cle ale A 173 Low Pressure Drop Due to Refrigerant Shortage or D ER 175 Electronic Expansion Valve Failure 207 z NM ORDRE 177 Low Pressure Protection Control 71 EO 179 Index i SiUS39 601 M Malfunction of Transmission between METRO ERRORIS TENERE PRSETER 229 237 Outside censes 216 Cn ae 230 238 Malfunction of Transmission between Remote en cate catt eet ci dd 232 240 Controller and Indoor Unit 215 Malfunction code indication by Malfunction of Water system 184 outside unit 222222222 2 4 150 234 242 Malfunction of Capacity Method of Replacing the Inverters Power Transistors Determination Device 167 and Diode Modules 281 Malfunction of Discharge Pipe Pressure Sensor 191 N Malfunction of Discharge Normal Control trt eerte 65 Pipe Thermistor R3T 186 Normal Operation eee 57 Malfunction of Drain Level Control System S1L 156 Malfunction of Heat Exchanger Gas Pipe Operation Lamp Blinks
312. rking pressure 10 1psi Conditions Retry 3 times Supposed W Abnormal low pressure drop Causes m Faulty low pressure sensor m Faulty main PCB m The stop valve left closed W insufficient heat source water W Dirty water heat exchanger Troubleshooting 175 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the stop valve opened Set up a pressure gauge in the low pressure service port Connect the Service Checker 3 Restart operation after resetting operation Are low pressure sensor characteristics normal Is PCB detector pressure normal 2 Open the stop valve Replace the low pressure sensor Replace the main PCB V e The low pressure sensor is normal and the main PCB pressuredetection is also normal e In fact low pressure is dropping Refer to page 250 to eliminate the causes of low pressure drop 1 Compare the pressure sensor voltage measurements with pressure gauge readings For the pressure sensor voltage is measured at the connector and converted to pressure in accordance with page 280 2 Compare low pressure measured with the Service Checker with pressure sensor 3 Microcomputer A D input voltage measurements refer to 1 Measure the vo
313. rol transmission wiring O Are the designated wires used between units O Is the grounding work completed Operation signal to heat Use a 500V megger tester to measure the insulation source pump and interlock Do not use a megger tester for other circuits than 200V or wiring from pump 240V circuit 7 e Interlock circuit O Are the setscrews of wiring not loose e Earth wire ls pipe size proper The design pressure of this product is ij 580psi O Are pipe insulation materials installed securely Liquid and gas pipes need to be insulated Otherwise causes Check on refrigerant piping water lt q gas pip water leak O Is refrigerant piping carried out correctly as per installation piping and piping insulation manual J Special care is required for multi outside unit installation Check on air tight test and S O Is the air tight test and vaccume drying carried out as per vaccume drying C installation manual y Is refrigerant charged up to the specified amount If insufficient charge the refrigerant from the service port of stop valve on the liquid side with outside unit in stop mode after turning power on O If the specified amount of refrigerant can not be charged in stop mode charge the required refrigerant as per Additional refrigerant charge mode in operation Refer page 129 1 Has the amount of refrigerant charge been recorded Record M Chart of Addition
314. rotection Control a 70 6 2 Low Pressure Protection Control a a n 71 6 3 Discharge Pipe Protection 73 6 4 Inverter Protection Control rna 74 6 5 Cooling Fan Control 75 2 Special Operati Mis 76 Oil Return Operation e Scu eR aad 76 7 2 Oil Return Operation of Water Heat 78 7 3 Pump down Residual Operation Control 79 7 4 Refrigerant Drift Prevention 81 CODE OL ecrire ctfi 82 8 1 Outside Unit Rotation 82 Outline of Control Indoor Unit 83 9 1 Drain Pump Control u u u uu e tuere Faites 83 9 2 Louver Control for Preventing Ceiling Dirt 85 9 3 Thermostat Sensor in Remote Controller 86 9 4 Thermostat Control While in Normal Operation 88 9 5 Thermostat Control in Dry Operation 2 22 0 4000 0 0 88 9 6 Electronic expansion Valve Control 89 9 7 Hot Start Control In Heati
315. roubleshooting OP Unified ON OFF Controller SiUS30 604 Troubleshooting A Caution Isa malfunction code displayed on the YES Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred remote controller NO Has once connected YES indoor unit been removed gt Diagnose the cause with the air conditioner s failure diagnosis manual or its address changed NO Is the power supply for the indoor unit displaying NO gt Reset power supply for all optional controllers for centralized control simultaneously a malfunction turned on YES Is transmission wiring YES gt Turn the power supply of the indoor unit on disconnected or wired incorrectly transmission with all indoor units malfunctioning transmission gt Fix the wiring correctly Is the group No of malfunctioning indoor units set YES Replace indoor unit PC board Set the group No correctly wiring with the master NO controller disconnected or wired incorrectly YES Eontroller s connector for gt Fix the wiring correctly setting master controller Replace the central PC board gt Connect the connector correctly V2841 244 Troubleshooting SiUS30 604 Troubleshooting OP Unified ON OFF Coniroller 5 2 Display Under Host Computer Integrat
316. roup No Setting INdOOMs ELE 221 BRECTG TYDE e hte eeu 106 Inverter Compressor Abnormal 197 BRC4C 107 Inverter Current Abnormal 198 BRC7G deiner edes 107 Inverter Over Ripple Protection 203 BROZE Type crates titm Cae Rd 107 Inverter Start up Error 200 Group No Setting Example 107 L Charge hose for R 410A 290 Check Operation not executed 212 Leak tester 289 Compressor Motor Lock 177 List of Swing Flap Operations 91 Contents of Control Modes 108 Louver Control for Preventing Ceiling Dirt 85 Low Pressure Drop Due to Refrigerant Shortage or D Electronic Expansion Valve Failure 207 Display Under Host Computer Integrate Control M Blinks Repeats Double Blink 248 Display Under Host Computer Integrate Control Malfunction of Capacity Blinks Repeats Single Blink 245 Determination Device 167 Drain Level above Limit e 166 Malfunction of Discharge Drain Pump Control ci 83 Pipe Pressure Sensor
317. rovided Malfunction m When temperature on the heat exchanger gas side RAT drops remarkably with the smallest Decision operation step 52 Hz of the compressor Conditions m With interlock setting provided when interlock circuit is turned off Supposed Clogged water piping system Causes m Insufficient heat exchanger water W Dirty heat exchanger Disconnected connector m Faulty thermistor on the heat exchanger gas side m Faulty low pressure sensor 184 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Clogged water piping system mixing in of foreign particles solenoid valve for water use NO gt Remove the clog Is the amount of water of heat exchanger 50 or more NO Secure enough water Is the heat exchanger dirty YES gt Clean the heat exchanger 15 the connection between the thermistor the heat exchanger gas side and the low pressure sensor S1NPL proper NO gt Connect the connector properly characteristics of the thermistor on the heat exchanger gas side RAT and the low pressure sensor S1NPL normal NO gt Replace the thermistor sensor if any of its characteristics are abnormal
318. rt beep Conduct steps 3 and 4 Continue the operation in step 4 until a buzzer remains ON The continuous buzzer indicates that the malfunction code is confirmed Continuous beep No abnormality 3 Press the MODE selector button The left O upper digit indication of the malfunction code flashes 4 Malfunction code upper digit diagnosis Press the UP or DOWN button and change the malfunction code upper digit until the malfunction code matching buzzer 2 is generated m The upper digit of the code changes as shown below when the UP and DOWN buttons are pressed E EIE 5524 c Advance button Backward button sEooe 2 Number of beeps Continuous beep Both upper and lower digits matched Malfunction code confirmed 2 short beeps Upper digit matched 1 short beep Lower digit matched 5 Press the MODE selector button The right lower digit indication of the malfunction code flashes 6 Malfunction code lower digit diagnosis Press the UP or DOWN button and change the malfunction code lower digit until the continuous malfunction code matching buzzer 2 is generated 142 Troubleshooting SiUS30 604 Troubleshooting by Remote Controller W The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed EE FR Ed 2 3 4 62 2 SBISIBIMIDIGIEIF c Advance button Backward button sc Normal status
319. rt it to pressure in accordance with page 280 2 Compare low pressure measured by the Service Checker with pressure sensor measurements refer to 1 In heating CD Connect the Service Checker 2 After resetting operation with a remote controller restart operation characteristics f the suction pipe thermisto R2T and the heat exchanger thermistor R4T normal 3 Replace the thermistor PCB detection temperature normal 4 Replace the PCB 613150663 Refer to page 251 to eliminate the causes of overheat operation 3 Compare the thermistor resistance with surface thermostat measurements 4 Compare the suction pipe temperature checked by the Service Checker with measurements obtained in 3 above 208 Troubleshooting SiUS30 604 Troubleshooting by Indication on the Remote Controller 2 38 UT Reverse Phase Open Phase Remote ul Controller Display Applicable RWEYQ60 72 8AMTJU Models Method of The phase of each phase are detected by reverse phase detection circuit and right phase or Malfunction reverse phase are judged Detection Malfunction When a significant phase difference is made between phases Decision Conditions Supposed m Power supply reverse phase Causes m Power supply open phase m Defect of outside PC board A1P Troubleshooting N Be sure to turn off power switch before connect or disconnect con
320. side unit PC board C H group address 00000 Outside Outside Outside unit group unit group unit group master 0 slave 0 slave 0 Adapter PCB 2 Outside No 1 unit group unit group master No 1 slave No 1 Adapter PCB No 0 i DS2 DSI Outside Outside Outside X Outside Outside Adapter PCB unit group unit group unit group Adapter PCB unit group unit group PEE master No 2 slave No 2 slave No 2 zi Nes master No 3 slave No 3 V2723 Test Operation 123 Field Setting SiUS30 604 Address setting for and Set lower 5 digits with binary number No 0 to No 31 Address Outside unit PCB LED Adapter PCB No Set with setting mode 2 DS2 DS1 No 0 oe 0 10 No 1 oe eeeeo 1 1 No 2 oe eeeoe 2 3 2 No 3 eeeoo ES 3 I 3 No 4 oe 0000 m 4 ES 3 4 No 30 oe Oooooe 2 30 30 31 OOOOO 31 31 SOON er Upper position ON Lower position OFF The shaded part shows knob V2724 124 Test Operation SiUS30 604 Field Setting 3 2 4 Setting of Demand Operation In order to save the power consumption the capacity of outside unit is saved with control
321. ssor Thermostat for Cooling and Heating Sound Absorbing Thermal Insulation Material Foamed Polyellylene Foamed Polyellylone Foamed Polyellylone Liquid Pipes in 1 4 Flare Connection 1 4 Flare Connection 93 8 Flare Connection Piping Gas Pipes in 91 2 Flare Connection 91 2 Flare Connection 95 8 Flare Connection Connections VP25 VP25 VP25 Drain Pipe in External Dia 1 14 External Dia 1 1 4 External Dia 1 1 4 Internal Dia 1 Internal Dia 1 Internal Dia 1 Machine Weight Mass Lbs 55 55 55 4 Sound Level H L dBA 31 28 33 28 34 29 Safety Devices Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Fuse Thermal Protector for Fan Motor Refrigerant Control Electronic Expansion Valve Electronic Expansion Valve Electronic Expansion Valve Connectable outdoor unit R 410A Series R 410A Series R 410A Series Model BYC125K W1 BYC125K W1 BYC125K W1 Color White 10Y9 0 5 White 10Y9 0 5 White 10Y9 0 5 Decoration Dimensions HxWxD in 1 5 8 37 3 8 x 37 3 8 1 58 37 3 8 37 3 8 1 5 8 37 3 8 x 37 3 8 Option Air Filter Resin Net Resin Net Resin Net with Mold Resistant with Mold Resistant with Mold Resistant Weight Lbs 11 11 11 Operation manual Installation manual Operation manual Installation manual Operation manual Installation manual Paper pattern for installation Drain Paper pattern for install
322. ssure Drop Due to Refrigerant Shortage or Electronic Expansion Valve 207 2 38 UP Reverse Phase Open Phase sese 209 2 39 Power Supply Insufficient or Instantaneous Failure 210 2 40 U3 Check Operation not 212 2 41 UY Malfunction of Transmission between Indoor Units 213 2 42 us Malfunction of Transmission between Remote Controller and Indoor Uniti cce aree eren eret ei mda ete Rene en c 215 2 43 Malfunction of Transmission between Outside Units 216 2 44 Ua Malfunction of Transmission between Master and Slave Remote Controllers idc in reta Lanes roa t get 218 2 45 JS Malfunction of Transmission between Indoor and Outside Units in the Same 219 2 46 UR Indoor amp Outside Units and Remote Controller Combination Failure 221 2 47 UC Address Duplication of Centralized 223 2 48 UE Malfunction of Transmission between Centralized Controller and BET 224 2 49 UF Refrigerant System not Set Incompatible Wiring Piping 226 2 50 Malfunction of System Refrigerant System Address Undefined 227 Troubleshooting OP Central Remote Controller
323. st often as the master unit Press the operation selector mode button in the remote controller of the indoor unit selected as the master unit A peep sound is emitted and the timer lamp turns off in all indoor units That indoor unit will control changeover of the cooling heating operation mode 120 Test Operation SiUS30 604 Field Setting Set Cool Heat Separately for Each Outdoor Unit System by Cool Heat Selector It does not matter whether or not there is outdoor outdoor unit wiring Set outdoor unit PC board 051 1 to OUT factory set Set cool heat switching to IND individual for Setting mode 1 factory set C H SELECT marene IND MASTERISLAVE L N O P DEMAND eo 70000 HIP H2P HP H6P C H SELECT Cool Heat Indoor unit Indoor unit selector Pip Remote Remote V3059 controller controller Test Operation 121 Field Setting SiUS30 604 Set Cool Heat for More Than One Outside Unit System Simultaneously in Accordance with Unified Master Outside Unit by Indoor Unit Remote Controller Install the outside unit external control adapter on either the outside unit outside unit indoor outside or transmission line Set outside unit PC board 051 1 to Indoor factory set setting mode 1 se
324. stem is in Stop Mode Parts name Symbol pis Actuator function Compressor M1C OFF Inverter cooling fan M1 2F OFF 4 way valve 1 2081 Y5S Holding 4 way valve 2 2052 75 Holding Main heat exchanger electronic exp valve EV1 Y1E 0 pulse Sub cooling electronic exp valve 0 pulse Hot gas bypass solenoid valve SVP Y1S OFF Water heat exchanger oil return solenoid valve SVE Y2S OFF Receiver gas charging solenoid valve SVL Y3S OFF Receiver gas discharge solenoid valve SVG Y4S OFF Non operation unit liquid pipe stop solenoid valve SVSL Y6S ON Ending conditions m Indoor unit thermostat ON 2 1 2 Stopping Operation of Slave Units During Master Unit is in Operation with Multi Outside Unit System This operation is used to make adjustments of required refrigerant amount with non operating slave units while the master unit is in operation In cooling operation The system operates in mode A or mode B listed in the table below Parts name Symbol pue Mode A operation 1 Mode B operation 1 Compressor M1C OFF OFF Inverter cooling fan M1 2F OFF OFF 4 way valve Main 2051 55 Holding Holding 4 way valve for heat exchanger 2082 75 Holding Holding pea heat exchanger electronic exp 150 to 300 pulse 0 pulse Sub cooling electronic exp valve EV3 Y3E 0 pulse 0 p
325. stem malfunctions i e the system stops and indoor unit remote controller displays the malfunction by resetting the system with the indoor unit remote controller the applicable outdoor unit is inhibited from operating for 8 hours thus making it possible to perform emergency operation automatically However in the event any of the following malfunctions occurs automatic backup operation can be performed Malfunctions under which automatic backup operation can be performed E3 E4 E5 E7 F3 H7 H9 e J2 J3 J5 J6 J7 J9 JA JC e L3 L4 L5 L8 L9 LC e U2 UJ Test Operation 135 Field Setting SiUS30 604 Emergency operation with settings in service mode Inhibition of operation is set with each outside unit Make the following settings with the master unit Setting with the slave unit becomes disabled Discriminate the operating status of the master unit slave units through the following LED display LED display O ON OFF Blink H1P H7P H8P Master eeoceeee o Slave 1 000000 o Slave 2 000000 Factory set To inhibit the master unit from operating Set setting mode 2 from No 38 to No 2 LED display O ON OFF H1P H7P Procedure 1 Press and hold the MODE button BS1 for 5 sec or 29000000 2 Press the SET button BS2 38 times oOoeeooe 3 Press the RETURN button BS3 once Factory set
326. stor R2T for Suction Pipe 188 2 24 JT Malfunction of Liquid Pipe Thermistor R6T 189 Table of Contents SiUS30 604 2 25 9 Malfunction of Sub Cooling Heat Exchanger Outlet Thermistor d jpmeet 190 2 26 JA Outside Unit Malfunction of Discharge Pipe Pressure Sensor 191 2 27 JC Outside Unit Malfunction of Suction Pipe Pressure 193 2 28 Outdoor Unit Malfunction of PC Board 195 2 29 LY Outside Unit Malfunction of Inverter Radiating Fin Temperature Rise RI T et m 196 2 30 15 Outside Unit Inverter Compressor Abnormal 197 2 31 48 Outside Unit Inverter Current Abnormal 198 2 32 L9 Outside Unit Inverter Stam up Error anne 200 2 33 Outside Unit Malfunction of Transmission between Inverter and Control PC Board 201 2 34 Outside Unit Inverter Over Ripple Protection 203 2 35 Outside Unit Malfunction of Inverter Radiating Fin Temperate T 205 2 36 Outdoor Unit Faulty Field Setting after Replacing Main PC Board or Faulty Combination of PC Board
327. t and Y2 of the indoor unit PC board YES The drain pump works when YES the power supply is reset gt for the indoor unit The voltage of terminals Y1 and Y2 or X25A is 208 230 V within 5minutes of resetting NO Be sure to turn off power switch before connect or disconnect connector Provide 208 230V power supply Connect either a short circuit connector or float switch and turn on again Defect of indoor unit PC board Loose connection of connector Replace float switch Modify the float switch s connection and turn on again Connect the drain pump and turn on again Check the drain piping for clogging or upward slope etc Replace indoor unit PC board Replace the drain pump or check for dirt etc V2778 Troubleshooting 157 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 4 Indoor Unit Fan Motor M1F Lock Overload Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting H5 All indoor unit models Detection by failure of signal for detecting number of turns to come from the fan motor When number of turns can t be detected even when output voltage to the fan is maximum m Fan motor lock m Disconnected or faulty wiring between fan motor and PC board N Be sure to turn off power switch b
328. t 15 the connector properly connected Are the thermistor resistance characteristics normal Are the coil resistance and insulation normal Are the voltage characteristics normal lt Is the connector properly connected Are the thermistor resistance characteristics normal Does the pressure value of the Service Checker match the reading of the pressure sensor Inadequate refrigerant quantity Abnormal pipe length Bent or Crush of pipe 1 5 High pipe resistance Including moisture choke Stop valve closed For subcooling electronic expansion valve refer to page 67 In cooling the indoor unit electronic expansion valve is used for superheated degree control Refer to page 89 In heating the outside unit electronic expansion valve Y1E is used for superheated degree control Refer to page 67 lt Refer to CHECK 6 on page 254 Is the piping length in the permissible range lt Conduct visual checks for pipe conditions lt Eliminate moisture by vacuum break lt Check to be sure the stop valve is open For hot gas bypass control refer to Low Pressure Protection Control on page 71 2 3 4 Reference values for superheated degree to be used in the judgment of overheat operation 1 Suction gas superheated degree 50 F or more 2 Discharge gas superheated degree 113 F or more excluding when
329. t to another optional controller for centralized control and simultaneously reset all optional controllers for centralized control again The controller connected by the connector for setting master control when the malfunction is cleared is defective and must be replaced V2843 Troubleshooting 247 Troubleshooting OP Unified ON OFF Controller SiUS30 604 5 3 Display Under Host Computer Integrate Control Blinks Repeats Double Blink Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting under host computer integrated control Repeats double blink Unified ON OFF controller Detect the malfunction according to DIII NET transmission data When no central control addresses are set to indoor units When no indoor units are connected within the control range W Central control address group No is not set for indoor unit Improper address setting Improper wiring of transmission wiring N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the central control address group No Set for the indoor unit NO Set by remote controller the central control address for all indoor units connected to the central control line Is the switch for setting each address set correctly NO gt
330. t 1 1 4 FPT Female Thread Drain outlet 1 2 FPS Female Thread Machine Weight Mass Lbs 330 Sound Level Reference Value dBA 51 Safety Devices High Pressure Switch Inverter Overload Protector Fusible Plugs Capacity Control 90 23 100 Refrigerant Name R 410A Refrigerant Charge Lbs 11 5 Control Electronic Expansion Valve Refrigerator Oil Synthetic Ether Oil Standard Accessories Installation Manual Operation Manual Connection Pipes Clamps Strainer Conduit Mounting Plate Drawing No 4D054572C Notes 1 1 Indoor temp 80 FDB 67 FWB inlet water temp 85 F outlet water temp 95 F Equivalent piping length 25ft level difference Oft Indoor temp 70 FDB 60 FWB inlet water temp 70 F Equivalent piping length 25ft level difference Oft 3 In the case of heat pump system suction gas pipe is not used 4 In the case of heat recovery system 5 In the case of heat pump system 2 This unit cannot be installed outdoors Install indoors Machine room etc 3 Hold ambient condition at 35 95 F 80 RH Heat rejection from the casing 0 71kW 4 There are some cases where capacity decreases depending on operating states 18 Specifications SiUS30 604 Specifications Model Name Combination Unit RWEYQ144MTJU Model Name Combination Unit RWEYQ72MTJU RWEYQ72MTJU 1 Cooling Capacity Btu h 144 000 x2 Heating Capacit
331. t the electric wiring connected to the power transistor and diode module Appendix 281 Method of Replacing the Inverter s Power Transistors and Diode Modules SiUS30 604 Power Transistor IGBT On Inverter PC Board P3 Ze lt cess Decision U Continuity V Fx 2 100 4 2 2 2 Approx 160kQ 4 250 Continully In the case of continuity the resistance must be 2 the same for all phases Approx 100kQ V2896 If other than given above the power unit is defective and must be replaced n Note If using a digital tester and continuity may be reversed Diode Module P1 P1 P1 L1 L2 L3 Decision L1 Continuity L2 L3 gt P1 co P1 P1 oco L1 L2 L3 2 2 Continuity 2 2897 If other than given above the diode module is defective and must be replaced n Note lfusing a digital tester and continuity may be reversed 282 Appendix SiUS30 604 Part 9 Precautions for New Refrigerant R 410A 1 Precautions for New Refrigerant R 4104 284 Til Gr rp n d a ekle et 284 1 2 Service yates 286 Precautions for New Refrigerant R 410A 283
332. t the outside unit you want to give cool heat selection permission to as the group master and set the other outside units as group slave units Setthe outside unit external control adapter SS1 to Unified factory set or Cool and SS2 to No factory set External control adaptor for outdoor unit SY SELECT 551 SELECTOR u C H SELECT E z weren uve DIDIT chHsEECT 1 osuere vo B F2 Fl F2 01 02 Ql O O O O O kasuna anam TAE To indoor unit To indoor unit Master unit Slave unit C H SELECT R C C H SELECT z MASTER SLAVE 2 E 88 _C HSELECT To indoor unit V3060 Multi outside units connection 122 Test Operation SiUS30 604 Field Setting Set Cool Heat for More Than One Outside Unit System Simultaneously in Accordance with Unified Master Outside Unit by Cool Heat Switching Remote Controller Add and change the following items to x Install cool heat switching remote controller on the group master outside unit Set SS1 on the group master outside unit PC board Supplementation on and When switching cool heat for each adapter PC board with the use of more than one adapter PC board set the address of the adapter PC board DS1 and DS2 so that it matches the unified cool heat address of out
333. tch Compressor Gauge port VU flare connection 52 Refrigerant Circuit SiUS30 604 Part 4 Function eher Al is dimora sedeo ier ciere a v pea dotis 55 ti Symbol 55 1 2 uu npe retenti 56 1 3 Normal Operation oen oos dae ope das aegris tubos cete 57 1 4 BS unit amp Indoor unit operation mode detail 58 STO CP rro TO 59 2 1 Stopping OPERATION e bo IRURE Re 59 SRR DY es es a muu ua Lei DUM LEE EE 61 Restart RT 61 3 2 Crankcase Heater 61 Startup Corno raodo E 62 41 Cooling Start up 62 4 2 Heating Start up Control 63 4 3 Pressure Equalizing Up epos dps 64 Normal CODITOL edes 65 5 4 Compressor Control 65 5 2 Electronic Expansion Valve Control 67 5 3 Heat Exchange Mode in Heating Operation or Simultaneous Cooling Heating Operation 68 Protection GoOHLOL sestertia dale teta dreht UR bur feda ts 70 6 1 High Pressure P
334. te Li Controller Display Applicable RWEYQ60 72 84 Models Method of m Detect malfunctions by current value during waveform output before compressor startup Malfunction W Detect malfunctions by current sensor value during synchronized operation at the time of Detection Startup Malfunction Incase of overcurrent OCP during waveform output Decision W When the current sensor malfunctions during synchronized operation Conditions m Incase of IPM malfunction Supposed m Faulty outdoor PC board A2P Causes e IPM failure e Current sensor failure e Failure of drive circuit Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn OFF the power supply once and then turn it ON again Does it return normally YES gt Itis believed that external factors noise etc other than failure caused the malfunction NO Is the power transistor normal Does the Compressor have insulation resistance of 100kQ or more YES Replace the compressor and the compressor inverter PCB A2P together gt Replace the inverter PCB A2P Replace the inverter PCB A2P Troubleshooting 195 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 29 LY Outside Unit Malfunction of Inverter Radiating Fin Temperature Rise R1T Remote Contr
335. te parts or tools can cause an electrical shock excessive heat generation or fire When relocating the equipment make sure that the new installation site has sufficient strength to withstand the weight of the equipment If the installation site does not have sufficient strength and if the installation work is not conducted securely the equipment can fall and cause injury Be sure to install the product correctly by using the provided standard installation frame Incorrect use of the installation frame and improper installation can cause the equipment to fall resulting in injury For integral units only Be sure to install the product securely in the installation frame mounted on a window frame If the unit is not securely mounted it can fall and cause injury For integral units only viii SiUS30 604 Introduction N Warning Be sure to use an exclusive power circuit for the equipment and follow the technical standards related to the electrical equipment the internal wiring regulations and the instruction manual for installation when conducting electrical work Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire Be sure to use the specified cable to connect between the indoor and outdoor units Make the connections securely and route the cable properly so that there is no force pulling the cable at the connection terminals Impr
336. tem or other unit of own system i Erroneous on site setting Abnormal connection with excessive UA Refer P 122 for Monitor mode Humber of indoor units Conflict of refrigerant type in indoor units Faulty system function Incorrect wiring Auto address error UH Transmission error in accessory devices conflict Malfunction of multi level converter UJ Confirmation of malfunction 1 in wiring and piping no setting for system abnormality in conflict check UF Push the RETURN button BS3 once to display First digit of malfunction code Contirmation of malfunction 2 Push the SET button BS2 once to Detail display Second digit of malfunction description code on next page Contirmation of malfunction 3 Push the SET button BS2 once to display master or slave1 or slave2 and malfunction location Push the RETURN button BS3 and Switches to the initial status of Monitor mode Push the MODE button BS1 and returns to Setting mode 1 152 Troubleshooting SiUS30 604 Troubleshooting by Remote Controller Malfunction Confirmation of malfunction 1 Confirmation of malfunction 2 Confirmation of malfunction 3 code LED1 LED2 LEDS LED4 LED5 LED6 LED7
337. ter This cooling fan operates only when the temperature of the inverter fan is high in order to reduce the operating time of the fan Details Control the cooling fan by each outside unit 52C1 ON amp T fin gt 122 F Cooling fan OFF Cooling fan ON 52C1 OFF OR T fin lt 86 F Function 75 Special Operation SiUS30 604 7 Special Operation 7 1 Oil Return Operation In order to prevent the running out of refrigerating machine oil in the compressor the oil flowing out from the compressor to the system side is collected through the oil return operation Oil Return Operation in Cooling Operation Starting conditions Start oil return operation in cooling operation referring to the following conditions Cumulative oil return amount 7 1 1 Timer Cumulative compressor operating time after power supply turns on exceeds 2 hours and the time after the completion of previous oil return operation exceeds 8 hours Furthermore the cumulative oil return is calculated according to Tc Te and compressor load Cooling oil return Electrical Preperation c ma 4 way valve Main 20S1 iri valve for heat exchanger 2 5 Main heat expansion valve Hot gas solenoid valve A HRA Soienaigvawe SYP 95 Y6S Indoor cooling unit fan Indoor cooling unit expansion valve Indoor heating unit fan Same as norm
338. ter 28 189Hz 189Hz 1 52Hz 29 202Hz 202Hz 2 57Hz 30 210Hz 210Hz 62Hz 31 216Hz 216Hz 4 68Hz 32 230Hz 230Hz 5 74Hz 6 81Hz B 2 Compressor operation 7 88Hz Step 8 96Hz No aster Slave 1 9 104Hz 4 52Hz 52Hz 10 110Hz 10 57Hz 57 2 11 112Hz 11 62H21 62Hz C 3 Compressor operation 12 120Hz 12 68Hz 68Hz Sip 18 130Hz 18 71Hz No Master Slave Slave 2 14 141Hz p 14 74Hz 74Hz 4 amp O 14 52Hz 52Hz 52Hz Start up 15 81Hz 81Hz 15 57Hz 57Hz 57Hz 16 88Hz 88Hz 16 62Hz 62Hz 62Hz 17 92Hz 92Hz 17 65 2 65Hz 65Hz 18 96Hz 96Hz 18 68Hz 68Hz 68Hz 19 104Hz 104Hz 19 71Hz 71Hz 71Hz 20 110Hz 110Hz 20 74Hz 74Hz 74Hz 21 112Hz 112Hz 21 81Hz 81Hz 81Hz 22 88Hz 88Hz 88Hz 23 96Hz 96Hz 96Hz 24 104Hz 104Hz 104Hz 25 110Hz 110Hz 110Hz 26 112Hz 112Hz 112Hz 27 120Hz 120Hz 120Hz 28 130Hz 130Hz 130Hz 29 141Hz 141Hz 141Hz 30 156Hz 156Hz 156Hz 31 168Hz 168Hz 168Hz 32 177Hz 177Hz 177Hz 33 189Hz 189Hz 189Hz Depending on operational conditions operation 34 202Hz 202 2 202Hz i inh 35 210Hz 210Hz 210Hz pattern may be different from the description 36 216Hz 216Hz 216Hz above 37 230Hz 230Hz 230Hz 66 Function SiUS30 604 Normal Control 5 2 Electronic Expansion Valve Control Main Electronic Expansion Valve EV1 Control
339. tery see a doctor immediately AN Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If a combustible gas leaks and remains around the unit it can cause a fire Be sure to install the packing and seal on the installation frame properly If the packing and seal are not installed properly water can enter the room and wet the furniture and floor For integral units only 1 1 3 Inspection after Repair A Warning Check to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet all the way If the plug has dust or loose connection it can cause an electrical shock or fire Introduction SiUS30 604 A Warning If the power cable and lead wires have scratches or deteriorated be sure to replace them Damaged cable and wires can cause an electrical shock excessive heat generation or fire Do not use a joined power cable or extension cable or share the same power outlet with other electrical appliances since it can cause an electrical shock excessive heat generation or fire AN Caution Check to see if the parts and wires are mounted and connected properly and if the connections at the soldered or crimped term
340. the startup of slave controller Decision When the optional controllers for centralized control which was connected once shows no Conditions response Supposed m Malfunction of transmission between optional controllers for centralized control Causes Defect of PC board of optional controllers for centralized control 238 Troubleshooting SiUS30 604 Troubleshooting OP Schedule Timer Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred once connected optional controller for YES centralized control been disconnected or its address the power supply NO turned on for all optional controllers for centralized control Is the reset switch of all optional controllers NO for centralized control set to normal Is transmission wiring NO disconnected or wired incorrectly LYES Reset power supply simultaneously for all optional controllers for centralized control Turn on power supply for all optional controllers for centralized control Set reset switch to normal Fix the wiring correctly The PC board of one of the optional controllers for centralized control is defective Try turning on off using each optional controllers for centralized control and replace the PC board of the one that is unable to control the indoor unit V2838
341. ting 249 Troubleshooting OP Unified ON OFF Controller SiUS30 604 CHECK 2 Check for causes of drop in low pressure Referring to the Fault Tree Analysis FTA shown below identify the faulty points Abnormally low low pressure Low evaporating temperature 1 2 quantity of Faulty Faulty low pressure sensor compressor Fauny low capacity Faulty control PCB pressure p control control Faulty low pressure sensor low In both cooling pressure Faulty hot gas solenoid valve and heating Protection control 2 Faulty control PCB In cooling Faulty indoor unit If the indoor unit electronic Faulty valve coil electronic expansion expansion valve Faulty valve body is excessively a Faulty gas pipe thermistor Faulty re of indoor unit control m Faulty electronic Faulty liquid pipe thermistor expansion valve of indoor unit control Faulty control PCB Faulty outside Faulty valve coil unit electronic expansion valve Faulty valve body In heating Faulty low pressure sensor If the outside unit electronic ulty suction pipe thermistor expansion valve is excessively throttled 4 In cooling Faulty control
342. ting item 1 H2P IND Master Slave H6P H7P H3P H4P H5P Factory set Address 0 O e o o O0 O gt Cool Heat Binary number 1 009000000 1 Unified address 6 digits _ 3 Address 0 O e o o gt i Binary number 1 2 u qn 0900000 6 digits 3 1 unit EEEE JO Number of units for 4 sequential starting 2 units 090000060 units OK A E A JORO Normal operation 5 Indoor forced fan O e e OE E E E E JO Indoor forced fan H E E E HOR Normal operation 6 Ingosr forced OE EEE E JO Indoor forced operation oOeooo000 High 8 Te setting Q e o o o e Normal factory setting OR E E K KOL E Low High 9 setting o Q e o O Normal factory setting OR E E E KOL E Low Quick defrost OR E E KOR 10 Defrost setting O o e o e Normal factory setting O e e e E o e Slow defrost OR E E E E KO External low noise demand OR E E E E KOR External low noise 12 O O O demand setting External low noise demand OK KA K FOK Address 0 O e o o Binary number 1 13 Airnet address y OE E E E E JO 6 digits 0000000 Additional refrigerant Refrigerant charging OFF 20 operation O e e p g Refrigerant charging ON OR E E E KOR bi
343. tion and operating status of the compressor V2813 Higher voltage than actual is displayed when the inverter output voltage is checked by tester Troubleshooting 199 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 32 49 Outside Unit Inverter Start up Error Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 18 RWEYQ60 72 84MTJU Malfunction is detected from current flowing in the power transistor When overload in the compressor is detected during startup m Defect of compressor Pressure differential start Defect of inverter PC board N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred The difference between high and low NO pressure when starting is above 29psi YES Disconnect the connection between the compressor and inverter Make the power transistor check mode ON by service mode Inverter output voltage Check Inverter output voltage is not balanced NO Unsatisfactory pressure equalization Check refrigerant system Normal if within 5V of power supply Must be measured when frequency is stable After turning NO gt Replace the inverter PC board on again L9 blinks again YES 2 Reset
344. tion control Inverter protection control Inverter cooling fan M1 2F Inverter cooling fan control Inverter cooling fan control 4 way valve Main 2051 Y5S OFF ON Heat exchanger mode control AA 2052 Y7S OFF In case of heating and simultaneous 9 cooling heating operation Main heat Heat exchanger mode control exchanger Heat exchanger mode control EV1 Y1E i In case of heating and simultaneous ee rone exp In case of cooling operation cooling heating operation Sub cooling electronic exp EV3 Y3E EV3 control EV3 control valve Hot gas bypass z sol on s SVP Y1S Protection control Protection control Water heat exchanger oil return SVE Y2S OFF Water heat exchanger oil return control solenoid valve Receiver gas m charging solenoid SVL Y3S Receiver pressurising control Receiver drift valve Receiver gas discharge solenoid SVG Y4S OFF Drift protection control valve Non operation unit liquid pipe stop SVSL Y6S ON ON solenoid valve Indoor unit fan Indoor unit EV Refer to following page for detail Refer to following page for detail expansion valve BS unit amp Indoor unit operation mode BS unit amp Indoor unit operation mode BS 20RT 20RT Y1S detail detail BS 20RH 3 way 20RH Y3S Function 57 Function General SiUS30 604 1 4 BSunit amp Indoor unit operation mode detail Outside unit operation mode Cooling mode
345. tom frame in a total of 6 places 4 With attention paid not to make the switch box support leg into contact with the side panel rotate the switch box to pull out it while referring to Figure on the right In order to pull out the switch box check to be sure no wirings get stuck with the switch box M X VE LIUM Side panel J ap Switch box support leg Procedure for Mounting Dismounting of Switch Box 1 2 Procedure for Mounting m Mount the switch box following the procedure for dismounting in reverse After the completion of mounting check to be sure connectors are all properly connected List of Detachable Connectors XTA White WHT 15 X94 Blue BLU 35 X104 Pink PNK Y45 High X124 Gray QRY Y65 voltage AIP X2A Red RED SIPH MS X17A Gray GRY X13A Green GRN 25 Blue BLU Y55 X164 Black BLK 75 JU V W MIC X344 Red RED R3 X374 White WHI R21 White WHT X37A White R51 Low voltage X37A White WH R6 wiring X464 Red RED SINPH X45A Blue BLU SINPL X26A White WHT 2 Y1E X284 Blue BLU 3K Y3E X Attach or detach any connector at the relay connector 256 Procedure for Mounting Dismounting of Switch Box SiUS30 604 Procedure for Mounting Dismou
346. ton BS3 and decide the item The present setting condition is blinked lt Selection of setting conditions Push the SET button BS2 and set to the setting condition you want Push the RETURN button BS3 and decide the condition No Setting item Description 1 Cool heat unified Sets address for cool heat unified operation address 2 demand address Address for demand operation Number of units for 4 sequential starting Sets the number of units for sequential starting 5 Indoor unit forced Allows forced operation of indoor unit fan while unit is fan H stopped H tap Indoor unit forced 6 operation Allows forced operation of indoor unit 8 setting Target evaporation temperature for cooling 9 Tc setting Target condensation temperature for heating External low noise 12 setting Demand Reception of external low noise or demand signal setting 13 AIRNET address Set address for AIRNET Additional 20 refrigerant charge Carries out additional refrigerant charge operation operation setting Refrigerant 21 collection mode Sets to refrigerant collection mode setting 26 Interlock abnormal display setting E Used for trouble diagnosis of DC compressor Since the 28 Check after waveform of inverter is output without wiring to the disconnection Compressor itis convenient to probe whether the trouble compressor wires comes from the compressor or PC boar
347. tor Replace outside unit PC board A1P V3075 2 Refer to thermistor resistance temperature characteristics table on P 278 Troubleshooting 187 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 23 J5 Outside Unit Malfunction of Thermistor R2T for Suction Pipe Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting u5 RWEYQ60 72 84MTJU Malfunction is detected from the temperature detected by the suction pipe temperature thermistor When a short circuit or an open circuit in the suction pipe temperature thermistor is detected W Defect of thermistor R2T for outside unit suction pipe W Defect of outside unit PC board A1P N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Connector is connected to NO X37A of outside unit 2 Connect the connector and turn on PC board again A1P YES Resistance is normal when measured after disconnecting the thermistor R2T from the outside unit PC board 3 5 360kQ NO gt Replace the thermistor R2T Replace outside unit PC board A1P V3073 2 Refer to thermistor resistance temperature characteristics table on P278 188 Troubleshooting SiUS30 604 Troubleshooting by Indication
348. tting Sealing Pads Clamps Screws Washers Operation Manual Installation Manual Paper Pattern for Installation Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Washers Operation Manual Installation Manual Paper Pattern for Installation Drain Hose Clamp Metal Insulation for Fitting Sealing Pads Clamps Screws Washers Drawing No C 3D042684 Notes 1 Nominal cooling capacities are based on the following conditions Return air temperature 80 FDB 67 FWB Outdoor temperature 95 FDB Equivalent ref piping length 25ft Horizontal 2 Return air temperature 70 FDB Outdoor temperature 47 FDB 43 FWB Equivalent ref piping length 25ft Horizontal 3 Capacities are net including a deduction for cooling an addition for heating for indoor fan motor heat High static pressure Standard 5 Nominal heating capacities are based on the following conditions these values are normally somewhat higher as a result of installation conditions External static pressure is changeable to change over the connectors inside electrical box this pressure means Anechoic chamber conversion value measured under JISB8616 conditions During actual operation Specifications 29 Specifications SiUS30 604 Ceiling Mounted Duct Type Model FXMQ30MVJU FXMQ36MVJU FXMQ48MVJU 1 Cooling Capacity Btu h 30 000 36 000 48 0
349. u want Push the BS3 RETURN button one time and the present setting content is displayed Push the BS2 SET button several times and match the LED display with the setting content as shown below you want Push the BS3 RETURN button two times gt Returns to Push the BS1 MODE button one time gt Returns to the setting mode 1 and turns H1P off Setting Setting Setting No indication Setting No indication Setting Setting contents indication Initial setting No contents contents H2P H3P H5P H1P H2P H1P H2P H5P 12 External NO low noise Factory o Demand setting setting YES Ol e 30 Demand 60 of setting 1 Ole atedpwr e e consumption 70 of rated power consumption e e Factory setting 80 of ratedpower consumption 32 Normal OFF demand O Factory o setting setting ON Setting mode indication section Setting No indication section Set contents indication section 128 Test Operation SiUS30 604 Field Setting 3 2 5 Setting of Refrigerant Additional Charging Operation When additional refrigerant is not charged all with outside unit in stop mode operate the outside unit and charge the liqui
350. ulse Hot gas bypass solenoid valve SVP Y1S OFF OFF Water heat exch oil return solenoid valve SVE Y2S ON OFF Receiver gas charging solenoid valve SVL Y3S OFF OFF Receiver gas discharge solenoid valve SVG Y4S OFF OFF Non operation unit liquid pipe stop solenoid valve SuSE 65 OFF ON To Mode B when No gas To Mode A when gas Mode transition conditions shortage signal is sent shortage signal is sent from indoor unit from indoor unit Ending conditions Slave units are required to operate 1 Mode A or B operation Slave ee A Master unit collects refrigerant Mode Slave unit storage refrigerant ae a e The changeover operation for mode A and B is performed for the reason that the required refrigerant amount varies depending on the indoor unit operation capacity Function 59 Stop SiUS30 604 In heating operation or simultaneously in cooling heating operation The system operates in mode A or mode B listed in the table below Mode A or B operation os A Master unit collects refrigerant Mode B Slave unit storage refrigerant 2 1 3 Abnormal Stop unit unit 2 The changeover operation for mode and is performed for the reason that the required refrigerant amount varies depending on the indoor unit operation capacity Parts name Symbol pts Mode A operation Mode B operation Compressor M1C OFF OFF
351. unction Decision Conditions Supposed Causes TE RWEYQ60 72 84MTJU Detect insufficient gas using low pressure or difference in temperature between the suction pipe and the heat exchanger In cooling Low pressure of 36 2psi or less continues for 30 minutes In heating m Suction gas superheated degree of 36 F or more continues for 60 minutes Abnormality is not confirmed and operation is continued Insufficient gas or clogged refrigerant wrong piping Faulty thermistor R2T R4T Faulty low pressure sensor Faulty main PCB A1P Troubleshooting 207 Troubleshooting by Indication on the Remote Controller SiUS30 604 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred In cooling Set up a pressure gauge in the service port on the low pressure side 2 Connect the Service Checker 3 Reset operation with a remote controller and restart operation Are the low pressure sensor characteristics normal 1 Replace the low pressure sensor Is the PCB detector pressure normal 2 Replace the Refer to page 250 to eliminate the causes of low pressure drop 1 Compare pressure sensor measurements with pressure gauge readings For measurements by a pressure sensor measure voltage between connectors 2 and 3 and conve
352. unit in the same system UA 9 9 9 Excessive number of indoor units etc 221 UC Address duplication of central remote controller 223 UE 9 9 9 Malfunction of transmission between central remote 224 controller and indoor unit 235 UF 9 9 9 Refrigerant system not set incompatible wiring piping 226 UH 9 9 9 Malfunction of system refrigerant system address 227 undefined Centralized M1 O or e 9 9 PC board defect 229 Control 237 ULM M8 O or e 9 9 Malfunction of transmission between optional controllers 230 Timer for centralized control 238 MA O ore 9 9 Improper combination of optional controllers for 232 centralized control 240 O or 9 9 Address duplication improper setting 234 242 Heat 64 9 Indoor unit s air thermistor error Reclaim 3 Ventilation 65 9 Outside air thermistor error 6A 9 Damper system alarm 6A 9 9 9 Damper system thermistor error 6F 9 Malfunction of simple remote controller 6H O 9 Malfunction of door switch or connector 94 9 9 Internal transmission error The system operates for malfunction codes indicated in black squares however be sure to check and repair Troubleshooting 149 Troubleshooting by Remote Controller SiUS30 604 Malfunction code indication by outdoor unit PCB To enter the monitor mode push the MODE button BS1 when in Setting mode 1 Refer P 122 for Monitor mode
353. urn the system to the previous mode and wait for 30 seconds or more until the discharge of capacitor is completed Then conduct a subsequent work Be sure to disconnect the compressor wiring when conducting the check operation mentioned above When the output voltage is approx 100 200 V 10 Hz and the voltage balance between phases U V V W W U is within 5 the inverter is normal Refer the detail power transistor check to page 281 3 2 10 Emergency Operation If the compressor cannot operate this control inhibits any applicable compressor or outside unit from operating to perform emergency operation only with the operative compressor or outside unit N Caution For making a compressor unable to operate due to malfunction etc be sure to conduct the work with emergency operation setting Never execute work such as disconnection of the power cable from magnet contactor Otherwise other normal compressors may malfunction Because the units will be operated in the combination with which oil pressure equalization between compressors cannot be performed 3 2 11 Restrictions for Emergency Operation If the emergency operation is set while the outside unit is in operation the outside unit stops once after pump down residual operation a maximum of 5 minutes elapsed 3 2 12 In the Case of Multi Outside Unit System Automatic backup operation With multi outside unit system if a certain outside unit sy
354. ve Faulty Faulty subcooling heat control control Nu exchanger outlet thermistor 2 Faulty control PCB lt Is the connector properly connected Are the thermistor resistance characteristics normal lt Does the pressure value of the Service Checker match the reading of the Faulty four way Four way changeover valve is located in an intermediate position changeover valve function Leakage from hot gas bypass valve Superheat caused by axis damage Superheat caused by faulty compressor Faulty indoor unit Faulty valve coil electronic expansion valve Faulty valve body Faulty gas pipe thermistor of indoor unit Faulty control Faulty liquid pipe thermistor of indoor unit Faulty outside Faulty control PCB Faulty valve coil unit electronic expansion valve Faulty valve body Faulty low pressure sensor Faulty control Faulty suction pipe thermistor 4p Faulty control PCB pressure sensor lt Is the temperature of piping connected to the four way changeover valve normal Are the coil resistance and insulation normal lt 15 the connector properly connected Are the thermistor resistance characteristics normal l
355. witch before connect or disconnect connector Caution or parts damage may be occurred Check the mounting condition of the suction pipe thermistor and the subcooling heat exchanger outlet thermistor temperature sensor mounted to piping Is th s the NO thermistor mounted properly Remove the suction pipe thermistor and the subcooling heat exchanger outlet thermistor from the outside unit PCB and measure the resistance with a tester Does NO gt Mount the thermistor properly before operation it function normally 1 Carry out check operation again Does the NO abnormal code F6 gt Replace the thermistor if it functions abnormally before operation gt Continue operation repeat e There is a possibility that there are other causes of refrigerant overfilling Refer to page 252 to eliminate the causes of wet operation 1 For thermistor temperature and resistance characteristics refer to page 278 279 Troubleshooting 183 Troubleshooting by Indication on the Remote Controller SiUS30 604 2 20 Malfunction of Water system Remote Hu Controller Display Applicable RWEYQ60 72 8AMTJU Models Method of m Detect abnormalities using the thermistor on the side of the heat exchanger gas Malfunction m Detect turned off interlock circuit Detection When interlock setting is p
356. y Btu h 162 000 Casing Color Ivory White 5Y7 5 1 Dimensions HxWxD in 39 3 8x30 3 4x21 11 16 x2 Heat Exchanger Stainless Steel Plate Type Type Hermetically Sealed Scroll Type Piston Displacement m h 11 18x2 Comp Number of Revolutions r p m 5 280x2 Motor OutputxNurnber kW 3 6x2 Starting Method Soft Start Liquid Pipe in 1 2 in C1220T Flare Connection Main Line Suction Gas Pipe in 1 1 8 in C1220T Brazing Connection x3 Main Line Connecting Discharge Gas Pipe in 4 7 8 in C1220T x5 1 1 8 in C1220T Brazing Connection Main Line Pipes Water inlet 1 1 4 FPT Female Thread Water outlet 1 1 4 FPT Female Thread Drain outlet 1 2 FPS Female Thread Machine Weight Mass Lbs 3304 330 Safety Devices High Pressure Switch Inverter Overload Protector Fusible Plugs Capacity Control 90 11 100 Refrigerant Name 410 Refrigerant Charge Lbs 9 9 9 9 Control Electronic Expansion Valve Refrigerator Oil Synthetic Ether Oil Standard Accessories Installation Manual Operation Manual Connection Pipes Clamps Strainer Conduit Mounting Plate Drawing No 4D054573D Notes 1 1 Indoor temp 80 FDB 67 FWB inlet water temp 85 F outlet water temp 95 F Equivalent piping length 25ft level difference Oft Indoor temp 70 FDB 60 FWB inlet water temp 70 F Equivalent piping length 25ft level difference Oft 3 In the case of heat pump system suction gas pipe is not used 4 In the case of heat recov
357. y in water system HJ Abnormal discharge pipe temperature Abnormal Td F3 Abnormal heat exchanger temperature Refrigerant over charge F6 Faulty sensor of discharge pipe temperature Faulty Tdi sensor J3 Faulty sensor of heat exchanger gas pipe thermistor Faulty Tg sensor J4 Faulty sensor of suction pipe temperature Faulty Ts sensor J5 Faulty sensor of receiver temperature Faulty TI sensor J7 Faulty sensor of subcool heat exchanger temperature Faulty Tsh sensor J9 Faulty sensor of discharge pressure Faulty Pc sensor JA Faulty sensor of suction pressure Faulty Pe sensor JC Faulty Inverter PC board Faulty IPM L1 Faulty Current sensor 1 Faulty Current sensor 2 Abnormal DIPSW setting Inverter radiation fin temperature rising Over heating of inverter radiation fin temperature L4 DC output over current Inverter instantaneous over current L5 Electronic thermal switch Electronic thermal switch 1 L8 Electronic thermal switch 2 Out of step Speed down after startup Lightening detection Stall prevention Limit time Stall prevention Current increasing L9 Stall prevention Faulty startup Abnormal wave form in startup Out of step Transmission error between inverter and Inverter transmission error LC outdoor unit Open phase Power supply imbalance Imbalance of inverter power supply voltage P1 Faulty temperature sensor inside switch box Faulty thermistor of inverter box P3 Faulty temperature sensor of inverter Faulty thermistor of inverter f
358. ying When charging a system care shall be taken that its maximum permissible charge is never exceeded in view of the danger of liquid hammer Charging with an unsuitable substance may cause explosions and accidents so always ensure that the appropriate refrigerant R 410A is charged Refrigerant containers shall be opened slowly Always use protective gloves and protect your eyes when charging refrigerant This outside unit is factory charged with refrigerant and depending on pipe sizes and pipe lengths some systems require additional charging of refrigerant Determine the amount of refrigerant to be added by referring to the table write it down on the included Added Refrigerant plate and attach it to the rear side of the front cover Note refer to the example of connection for the amount to be added Additional refrigerant charge procedure 1 normally Charge the refrigerant to the liquid pipe in its liquid state Since R 410A is a mixed refrigerant its composition changes if charged in a state of gas and normal system operation would no longer be assured Make sure to use installation tools you exclusively use on R 410A installations to withstand the pressure and to prevent foreign materials from mixing into the system Before charging check whether the tank has a siphon attached or not How to charge with a siphon attached tank Charge with the tank upright There is a siphon tube inside so there is no need

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