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RZQ200 · 250C7Y1B R-410A Heat Pump 50Hz

1. ERE 1 DD ODE EE DES DS AEE BERE AEE KE DD GENDER 3 I I I I 3 3 3 3 3 I 3 3 3 I 3 3 3 3 3 3 3 3 I I I I 3 EL Nm Pr NVE ef gt ne 186 Appendix iagrams D iping P iagrams D iping Pair SiBE26 701 RZQ200 250C7Y1B 2 P 2 1 L 97063MLE uouo 34104 WWG apis LINN HOOGLNO Duidid ajis uo uo juod Sas m LINN MOOGNI DID LP ANN LL LLONINNMNNMEEMIEMME O 0222 0 DNIdld 1194 V 0 UNIdld ql Josuas aJnssaJd MO agni JD IdD JOSS3JAUON Y3JONVHIX3 1Y3H YO00NI YINMS aJnssaJd uBIH JO YOLVaVdss AIDA piouajog Xo JA DA Josuas B
2. FDQ FHQ FUQ E i FAQ Remote Controller Wireless Type Wired Type iii ee _ Fran d BRC1D52 Type BRC7 Type Outdoor Units I EP 4 l gi r 9 A 4 9 RZQ200C RZQ250C General Information SiBE26 701 Part 2 Specifications ONES eciam 8 L1 CU edel RTT 8 2 Electric CharacteriStiCs cccccceccccecececcecccesceccacsceccacacecuscecesueceaususananes 9 Specifications 7 Specifications SiBE26 701 1 Specifications 1 1 Outdoor Units Heat Pump 50Hz Series lt RZQ C gt Mod mme mose Ivory White 5Y7 5 1 E type Light Camel 2 5Y6 5 1 5 Hermetically Sealed Scroll Type 1872 Compressor 7 980 Motor Output 2 2kW 60rps 3 08x1 Starting Method Soft Start Propeller Fan non 7501 Direct Drive Connecting Pipes 22 2 Brazing Connection 184 High Pressure Switch Fan Driver Overload Protector Overcurrent Relay Inverter Overload Protector PC board fuse Reversed cycle 14 100 R40 Refrigerant Electronic Expansion Valve Notes 1 Indoor temp 27 CDB or 19 CWB outdoor temp 35 CDB Equivalent piping length 7 5m level difference Om _ Shows maximum capacity x2 Indoor temp 20 CDB outdoor temp 7 CDB or 6 CWB Equivalent piping length 7 5m level difference Om Shows maximum capacity 8 Specifications SI
3. Removal Procedure SiBE26 701 1 4 Procedure for Removal of PC Board Procedure N Warning Be sure to commence the disassembling work after 10 minutes or m Remove the front panel middle according to the procedure for Removal Related to Outside Panel Unscrew the four screws and then slide below the electrical component box Cover to remove it 1 Remove the main PC board A1P Disconnect all the connectors from the main PC board a Connector x 20 b Screw x 2 6 Remove the head of the locking guard spacer to pull out the main PC board A1P 9 places Removal from the locking guard spacer Removal Procedure RZQ200 250C7Y1B more elapsed from all power supplies have been turned off Step Procedure Points X20A Qoooooooo 5 5 S 8 F8 a Sa perg Locking guard spacer i Lisa 5A C J pe Locking guard spacer Sectional view of the mounting position of a locking guard spacer Head Main PC board Pd 197 RZQ200 250C7Y1B SiBE26 701 Ez Procedure Points 2 Remove the QA transmissi
4. 90 2 7 Equipment Operates but does not Provide Heating 92 2 8 Equipment Discharges White Mist ccccccccseeceeeceeeeeeeeaeeeeeeeneesaees 93 2 9 Equipment Produces Loud Noise or Shakes ccccccceeeceeeeeeeeeeeteees 94 2 10 EET Discharges Ne 95 2 11 Remote Controller LCD Displays 88 ruvnnnnrnrnrrvnnnrrnvnnrevnnrrrnnnrenvnrrnnnnn 96 2 12 Swing Flap does not MOVE ccccccescecceeeecsececceeeceeeecceeeeeseeeeseeeessaees 97 3 Procedure of Self Diagnosis by LED ccccccccceeceeeeeeeseeeeeaeeeesaees 98 3 1 Troubleshooting by LED on Outdoor Unit PC Board 98 4 Diagnosis by Remote Controller cccccccccseececeeeeeseeeeceeeeesueeeeseaees 99 4 1 Confirm Method of Malfunction Code cccccccsecceeeeeeseeeeseeeeeaeeeenaees 99 4 2 Remote Controller Display Malfunction Code and Contents 102 4 3 AP Failure of Indoor Unit PC ISOGEFEL uae sa pemtd d RU2 nde bit mme 104 4 4 Az Malfunction of Drain Water Level System Float Type 105 4 5 55 Malfunction of Indoor Unit Fan Motor sees 107 4 6 55 Malfunction of Indoor Unit Fan Motor sese 109 4 7 R amp Indoor Unit Fan Motor Overload Overcurrent Lock 110 4 8 AT Malfunction of Swing Flap Motor rrrrnrernnnnrrnnnrnnnnnennnnr
5. Is there continuity in NO control and protection YES Check No 5 Is high pressure abnormally high YES Set the remote controller and turn on again Is the malfunction code of H3 displayed YES NO Check No 3 P 174 The pressure is abnormaly high YES Open the stop valve Connect correctly Replace HPS with no continuity Correct the high pressure Replace the high pressure switch HPS Correct the failure Check Over charge of refrigerant fee P 182 Replace the outdoor unit PC board A1P 1 The connector for the high pressure switch are as in the table below RZQ200 250C S1PH X2A Troubleshooting 121 Diagnosis by Remote Controller SiBE26 701 4 17 E4 Low Pressure System Malfunction Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 122 LI I 51 RZQ B Detect malfunctions by the low pressure sensor S1NPL m When the detection pressure is the following value Actuating pressure 0 07MPa Failure of the low pressure switch Disconnection of the wire harness of the low pressure switch Defective connection of the connector of the low pressure switch Malfunction of the refrigerant piping circuit Failure to open the stop valve Defective outdoor unit main PC board A1P Refrigerant shortage Troubl
6. esses 157 S Self diagnosis by Wired Remote Controller 99 Self Diagnosis by Wireless Remote Controller 100 Swing Flap does not Move eeeesse 97 T Transmission Error between Main Remote Controller and Sub Remote Controller 164 Transmission System Malfunction between Indoor and Outdoor Units suusssse 172 Troubleshooting by LED on Outdoor Unit PC BOU Lae 98 W Wind IDOI AIS sais A S 191 vi SiBE26 701 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 authorised 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 application of any local legislation e 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 contracto
7. 104 Failure of Outdoor Unit PC Board 119 Fan Air Volume Control esessesus 50 Fan Airflow Direction Adjustment Control 51 Fan Speed Changeover when Cooling Thermostat is ellc TN 29 Fan Speed Changeover when Heating Thermostat is OFF M 29 Fan Speed OFF when Thermostat is OFF 28 Faulty Outdoor Inverter PC board 142 Field Setting by Demand Adapter 35 Field Setting from Outdoor Unit PC Board 38 Field Setting from Remote Controller 24 Field Setting of Indoor Unit 24 Field Setting of Outdoor Unit 32 Field Setting Procedure 32 Filter Sign Setting eese 27 Flaring and Flare Nut rci 81 FUNCTION COFPILFOL ciet ite a dus 63 Function of Each Switch eus 38 G Gas Shortage Malfunction 156 H es 132 EEE EET EE EE ees 134 nem P 136 Humidification when Heating Thermostat is OFF 31 I In Case of Flat Installation 34 Individual Setting for Multi Unit Simultaneous ODS AON EE LL m T 28 Indoor Fan Operates but Compressor does not 85 Indoor Unit Fan Motor Overload Overcurrent Eee dM T penn sea
8. 170 Malfunction of Transmission between Indoor and Outdoor Units in the Same System 165 Malfunction of Transmission between Inverter and Control PC Board be rr wae 151 Momentary Overcurrent of Inverter COmbDIeSSOD aug 145 O Operation EImils sasssssoruseded sagene 72 Operation of the Remote Controller s Inspection Test Operation Button eeeeeeeeeeeeeee 21 P Piping Diagrams POE TWIN sb asseus tese p Lemma es bande batum 190 P L rc 187 Ilio eee PD EE E EE E 189 AE NT 188 Power Supply Insufficient or Instantaneous FAU mt 158 Procedure for Removal of Compressor 201 Procedure for Removal of Electrical Component ASSEN area ane 196 Procedure for Removal of Electronic Expansion Valve and Solenoid Valve seeese 199 Procedure for Removal of Fan Motor 195 Procedure for Removal of PC Board 197 Procedure for Removal of Pressure Switch Pressure SENSO GIO 1o ovcse e 200 Procedure for Removal of Thermistor 202 Procedure for Removal Related to Outside FAITE eer HR 194 V R Radiation Fin Temperature Increased 143 Refrigerant recovery procedure 82 Refrigerant Saturation Curve R 410A 78 Hemote Controller Display Malfunction Code and ENE 102 Remote Controller LCD Displays 88 96 Reverse Phase
9. 132 Abnormal Outdoor Fan Motor Signal 134 After Equipment Shuts Down It cannot be Restarted TOM he VV IMIG ERU Tm 89 C Centralized Address Duplicated 169 Compressor Inverter Start up Error 149 Cooling Heating Operation Starts but Stops Immediately nette reckon anra kes 87 D Defective Combination of Inverter and Fan BLE ER EE teases EE TEA 155 E Equipment Discharges Dust 95 Equipment Discharges White Mist 93 Equipment does not Operate 84 Equipment Operates but does not Provide COGIING sess X M 90 Equipment Operates but does not Provide Realno pere akser 92 Equipment Produces Loud Noise or Shakes 94 External Appearance anrnnnnennnennnrnnnnrnnnennnvnnnnnnnnennn 6 F Failure of Drain System esssssss 113 Failure of Indoor Unit PC Board 104 Failure of Outdoor Unit PC Board 119 Faulty Outdoor Inverter PC board 142 Flow Chart of Outdoor Unit 55 G Gas Shortage Malfunction 156 i Indoor Fan Operates but Compressor does not 85 Indoor Unit Fan Motor Overload Overcurrent Eoo mv 110 Inverter Compressor Motor Lock 124 Inverte
10. Is the malfunction code 7 displayed on the remote controller YES Heplace the outdoor PC board A1P NO Check the fan motor 119 Diagnosis by Remote Controller SiBE26 701 4 16 3 Abnormal High Pressure Level Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 120 ZJ f l RZQ Detect continuity of high pressure switch via protection device circuit When the high pressure switch is actuated Actuating pressure 4 0MPa Malfunction of the high pressure switch Disconnection of the wire harness of the high pressure switch faulty wiring of the connector Clogging of the suction filter of the indoor unit in heating operation Dirt of the outdoor heat exchanger Defective fan of the outdoor unit in cooling operation Defective fan of the indoor unit in heating operation Refer to the failure to open the stop valve Refrigerant is over charged Troubleshooting SiBE26 701 Troubleshooting Diagnosis by Remote Controller AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the stop valve open NO YES control and protection HPS connected to outdoor unit PC board Note NO YES Turn off the power supply Wait for 10 minutes after compressor stops operating then check the following
11. Is the remote controller wiring jumped between indoor units YES NO Is the field setting for pair twin system correct YES NO Are the wires between indoor indoor and microcomputer normal monitors HAP on all indoor unit PC NO NO connected YES Is the power supply for the option device connected from the terminal block X2M between 1 and 2 connecting indoor and outdoor of the indoor unit NO YES YES Is the power supply NO PC board correctly connected YES Is 220 AC between No 1 and 2 of X2M terminal indoor unit Turn the power supply off once YES and back on to restart NO Are the wires between indoor indoor and indoor outdoor correctly connected Does the system conduct normal operation NO YES SiBE26 701 Be sure to turn off power switch before connect or disconnect connector Check the setting for number of indoor units connected to the simultaneous on off multi of the indoor unit Adopt only one of the remote controllers Remove the jumper Integrated control in the same circuit is not allowed Connect correctly Connect correctly Connect correctly Connect correctly Check the power supply system inside the indoor unit Could be incorrect wiring Check again Connect correctly Replace the indoor unit PC board Normal Troubleshooting Si
12. Check the compressor cable for any disconnection or flaws YES Disconnect the cable from the compressor and then check the compressor for the insulation resistance Power OFF The insulation resistance is low i e not more than 100kQ YES Replace the compressor M1C NO Check the power transistor on the inverter PC board A3P using a multiple tester NO Does the power transistor have any abnormalities Connect the compressor cable and then restart the operation YES Replace the inverter PC board A3P The inverter is likely to have got faulty due to the malfunction of the compressor After the completion of replacement be sure to check the compresssor 149 Diagnosis by Remote Controller Power ON 150 SiBE26 701 Is a difference between high pressure and low pressure prior Faulty pressure equalization T pag a refrigerant Does the malfunction End of measures L9 recur It can take a maximum of 60 minutes Check the refrigerant to determine the malfunction system Check of compressor Check the compressor for abnormal sounds vibration operating conditions and others according to the Compressor Diagnosis Procedure Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 32 LC Malfunction of Transmission between Inverter and Control PC Board Remote Controller Display Applicable Model
13. 2 1 2 Field Setting Procedure 1 When in the normal mode press the button for a minimum of four seconds and the FIELD SET MODE is entered 2 Select the desired MODE NO with the button 2 3 During group control when setting by each indoor unit mode No 20 21 22 and 23 have been selected push the gt button 3 and select the INDOOR UNIT NO to be set This operation is unnecessary when setting by group 4 Push the y upper button 4 and select FIRST CODE NO 5 Push the lower button 5 and select the SECOND CODE NO 6 Push the button 6 once and the present settings are SET 7 Push the button 7 to return to the NORMAL MODE 32 Field Setting SiBE26 701 Field Setting of Outdoor Unit 2 1 3 Explanation of Each Setting Nighttime low noise setting This setting is selected when automatic low noise operation is desired during nighttime There are three levels for low noise operation and low noise level 3 is the quietest Furthermore start end time of low noise operation can be set and changed l Application Setting position Hemarks RZQ200 250 Low noise level 1 Low noise level 2 factory setting Quietest Low noise level 3 Setting procedure Take the following steps by referring to Field setting by remote controller on the previous page 1 Use the setting switch No 0 to select Nighttime low noise setting 2 Select the most suitable com
14. nm Remote Controller Display Applicable FDQ200 250 Models Method of Detect the status in which the separate power supply for the fan is cut OFF Malfunction Detection Malfunction Unable to detect that separate power supply for the indoor unit fan is turned ON Decision Conditions Supposed Causes Defective power supply for the indoor unit fan motor Clogging in the drain pipe Protection device for the indoor unit fan is operated Defective contact for the fan wiring circuit 110 Troubleshooting SiBE26 701 Troubleshooting Troubleshooting Diagnosis by Remote Controller AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the power supply for the indoor fan correctly connected Connect correctly Is the fan interlock PC board correctly connected Restart operation Connect correctly Is the operation normal DES It E cds os the system cause malfunction stop due to overload NO overcurrent lock of the indoor unit fan motor Is 200V supplied to the ne of the fan YES Check the indoor unit interlock PC fan motor board NO Is the voltage of X31A YES for the main body PC board DC5V Replace the fan interlock PC board NO Replace the indoor unit PC board 111 Diagnosis by Remote Controller SiBE26 701 4 8 AT Malfunction of Swing Flap Motor I Remot
15. H3A09 X08 0dN02 13 NO 138Y1 NOIIQnVO3Hd 321AH35 OL H343H HILIMS SQ ONY G 58 ISN OL MOH G va u ldv av IYNOILdO JHL 30 TVNNYN NOLLYTTVISNE JHL OL H333H UOldvOv IVNOILdO 3Hl INISN N3HM M3H95 HlUV3 3A112310Hd 1VNINH31 o H0123NN02 ee d HIS TYNINUIL i DNIUIM 07314 EE 7 deV LINA HOOGLNO IHL OL AINO Q3I1ddV SI WYyH9YIO ONIHIM SIHL I S310N div d V HL C LNOUJ D NZX NIX SININOdNOD 404 010 ININHIISIC 5 s IN3NOdNO 40 40109 YOLIINNOJ S x W ASSY 82d 40 u010 HOLDINNOD S s sske X08 0dW02 14 113HS d31f0 JIN JIN X08 0ANOJ 13 JIW DIN 30 10n0AV1 A M 100pu JIN JO TWNINUSL i 191 Appendix Wiring Diagrams SiBE26 701 192 Appendix SiBE26 701 Removal Procedure Part 8 Removal Procedure AZO200 250 GY 1B EE 194 1 1 Procedure for Removal Related to Outside Panel 194 1 2 Procedure for Removal o
16. eeeeeen mnn 18 3 2 Maintenance Mode Narad b Sa xat A A uod 19 3 3 Operation of the Remote Controller s Inspection Test Operation Button 4 21 3 4 Remote Controller Service Mode eeeee en 22 Remote Controller 11 Wired Remote Controller SIBE26 701 1 Wired Remote Controller 1 1 Features BRC1D52 Type d e A sie SR A MOF Hs 1 MC mm BA EHE PEN Bg uc li SNE IG VES LL ae L H HHE n armel nri Pp 16 Q13 15 18 19 20 21 5 24 29 33 e Eg de Gy mang ma og Gs 3 om O em Ae C C LI C_z 36 B z 30 31 32 34 1 ON OFF BUTTON gt Press the ON OFF button to start or stop the system 2 OPERATION LAMP O The operation lamp lights up during operation or blinks if a malfunction occurs 3 OPERATION MODE ICON 4 Al x 38 These icons indicate the current operation mode FAN DRY AUTOMATIC COOLING HEATING 4 VENTILATION MODE ICON amp NZ These icons indicate the current ventilation mode HRV only AUTOMATIC HEAT EXCHANGE BYPASS 5 VENTILATION ICON lt The ventilation icon appears when the ventilation is adjusted with the ventilation amount button HRV only Simultaneously the ventilation amount is indicated by the fan speed icon 6 AIR CLEANING ICON This icon indicates that the air cleaning unit option is operational 7 LEAVE HOME ICON i The leave home icon shows the status of the leave home function Lea
17. 163 4 40 UB Transmission Error between Main Remote Controller and Hede AG 0 ENE 164 4 41 US Malfunction of Transmission between Indoor and Outdoor Units in the Same System cccccsseceeceeseeceeeeeeseeeeeseeeeeeees 165 4 42 UR Malfunction of Field Setting Switch and Transmission Line 167 4 43 UC Centralized Address Duplicated sss 169 4 44 UE Malfunction of Transmission between Centralized Controller and NOU e E 170 4 45 UF Transmission System Malfunction between Indoor and Outdoor Units rrrareranrrnarrrnrnvanrnnanennnennanennnnnn 172 Part ADDendabDCGuussacununumumxwumumdb uuAam5 ua EE r Rv rrrr A D Table of Contents 1 Items Improved from the Existing Models 186 2 PIPING Diagrams rarvnnrennnrnnrrnnnrnnnrennrennrrnnnrnnnnnnnnennnennnnnnernnrnnnnennsenne 187 ee ee A eee ee 187 NN 188 EN TNOC 189 24A DENN 190 3 Wiring Diagrams rrrnnrennvrennvrennvrennvennnnrrnnvennneennvrennvrennvennnvennuvennnsennnn 191 SEE vUstg 191 SiBE26 701 Part 8 Removal Procedure 2 222222222222222222222222222222222222 193 Index 1 RZOP00 250 7Y IB areae a 194 1 1 Procedure for Removal Related to Outside Panel 194 1 2 Procedure for Removal of Fan Motor
18. Precautions during inverter servicing 1 Do not touch the energized part because of its high voltage for at least 10 minutes after the power is turned OFF 2 After opening the switch box cover measure the voltage between the terminals on the power terminal block with a tester to confirm that the power is turned OFF Take measurements at the following spots with a tester to confirm that the main circuit capacitor voltage is 50 VDC or less 3 For the purpose of preventing damage to PC board never fail to touch the earth terminal of the electrical equipment box with a hand immediately before plugging or unplugging the connectors to release static electricity from your body 4 Before starting operation disconnect the relay connectors X1A and X2A from the motor for the outdoor unit fan Be careful not to touch the energized part when disconnecting the relay connectors When the outdoor unit fan is rotated by strong wind or other reasons electrical energy is stored in the main circuit capacitor and there may be a risk of electric shock 5 After finishing servicing plug the outdoor unit fan relay connector to the previous positions Error code E7 is displayed on the remote controller and normal operation is impossible For connecting the connectors refer to the Electrical Wiring Diagram plate attached to the back side of the switch box cover General precautions during servicing Precautions during refrigerant refilli
19. 4 way valve LT ON OFF i i Open degree is adjusteddepending on Electronic i the degree of suction gas superheat expansion valve 200pls g g p i 50 sec Outdoor unit ON Indoor unit OE ON fan OFF Pressure p ON equalizing OFF solenoid valve Defrost ending condition If the following conditions are met in one minute after defrosting starts defrosting operation ends however the maximum length of operation is 10 minutes Outdoor heat exchanger temperature Tb 210 C Discharge pipe temperature Tdi Tds 2105 C Discharge pressure Hp gt 3 04MPa 2 4 6 2 Oil Recovery Operation Function and Operation A prolonged operation of the compressor under low frequency may result in insufficient oil level because of poor oil recovery For this reason oil recovery operation is performed for 10 minutes while increasing the compressor operation frequency INV 165 Hz Oil recovery operation is available only in cooing operation 69 Outdoor Unit SIBE26 701 2 4 7 Servicing Function 2 4 7 1 Emergency Operation B No transmission between outdoor and indoor units available B A cycle of a 20 minute operation and a 10 minute stop is repeated in cooling operation B Defrosting operation is performed once in 1 hour in heating operation B Other controls are same as those performed in normal operation 2 4 7 2 Simulated Operation Function When a malfunction occurs in the following thermistors simulat
20. A difference in elevation is 5 m or less O Setting possible When the indoor unit is installed in a lower position A difference in elevation is 30 m or less O Setting possible The maximum difference in elevation between indoor and outdoor units A difference in elevation exceeds 5 m x Setting impossible Indoor unit Outdoor unit Outdoor unit jm ifference in E elevation Diff amp e In m or less 7 eleva in 5m NSA mo Difference in elevation 30 m or less Nr Indoor unit i Note 1 The energy saving effect in the flat installation mode is prominent during partial load operation when cooling No such an effect during heating 2 The range of cooling partial load operation where the energy saving effect in the flat installation mode is prominent varies largely depending on the setting of indoor temperature air conditioning load 3 The difference in elevation must be 5 m or less however the piping can cope with the maximum piping length or equivalent 4 The energy saving effect is prominent even when the indoor unit is installed lower than the outdoor unit 2 1 5 Setting of Defrost Start Time Used to set the time to forcedly start defrosting operation The factory setting for the Second Code No is 01 Defrosting operation interval 1 First Second Mode No Outside air Outside air Code No Code No Setting temperature temperature gt 5 C lt 5 C 01 Standard
21. Remove the humidity sensor from the indoor PCB and insert it again Does it function normally YES It is normal Poor connector contact NO Delete the malfunction code record from the remote controller 1 Is VE displayed on the remote controller 2 YES Replace the humidity sensor PCB ASSY A2P 3 NO It is believed that external factors noise or else other than failure caused the malfunction 1 To delete the record the ON OFF button of the remote controller must be pushed and held for 5 seconds in the check mode 2 To display the code the Inspection Test Operation button of the remote controller must be pushed and held in the normal mode 8 If C is displayed even after replacing the humidity sensor PCB ASSY A2P and taking the steps 1 and 2 replace the indoor PCB ASSY A1P 117 Diagnosis by Remote Controller SiBE26 701 4 14 c Malfunction of Remote Controller Air Thermistor Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 118 Lu All indoor unit models Even if remote controller thermistor is faulty system is possible to operate by system thermistor Malfunction detection is carried out by temperature detected by remote controller thermistor When the remote controller thermistor becomes disconnected or shorted while the unit is runn
22. SADA UOISUDAX3 aAA uosupdxa 093 31101423 JADA BAJDA AIBY 29u adid A m JaDupuJxa JDaH m 305702 00 3A DA m m 002074 256 18000 Y LX uoi do 656 ONIdld Cals 06S DNIdld 1914 56 ONIdld 1314 06S ONIdld C 1414 LINN 000NI T rs ONidid MJH ONidid 0739 Hl l eee LLL I MR GNE III MN _ ONidid JH ONidid 03 ul lij M3ONVPDX qu LV3H 4000N NENNEN EE LINN 4000N pou uo se GE ONdd 738 NY ONidid TH HD MXONVPDX Qn 1V3H HO00N LINN HOON en ec ANNEN ONdld 138 NV Nad maa M3ONVEDX3 CT 1V3H 4000N Appendix iagrams D iring W iagrams D Outdoor Uni RZQ200 250C7Y1B iring SiBE26 701 3 W 3 1 g86Srso0d 9 HDTH HOLIMS JUYNSSIYd HdlS SLA AYV13H DI LINDVN HE MOT H0SN3S 3YNSS3Hd JIN HOLOVINOD JILINDVN HDIH H0SN3S 3Ufl5S3Ud HdNIS Avi3u 9113N5VN YOLAVAY QNVW3O YO4 YOLIINNOD V99X U3A1323U DY N33U9 HOLINON 321AU35 dV 11011d dVH HOLdVAV QNVW3Q H03 H0123NNO v9 Xj 39Hfd SVD H3A1323H YOLSIWHSHL 198 dn 18917 N01123130 NOLLINNATIYN SHOLJINNOD NOIIdO
23. T don Cc Ke S Thermostat a OFF S1120 1 Thermostat ON point TON according to suction emp Ts Suction air temp Ta CO Ts224 C 1 5 24 C gt Ts gt 18 C 1 0 18 C gt Ts 1 0 2 Operation condition Compressor condition Setting of flow rate L operation OFF Angle of flap Set angle Set angle Air flow direction set with remote Set angle Set angle controller 1 1 4 Outdoor Unit Detection Function Indoor units can be used both for heat pump and cooling only however the outdoor unit connected is detected whether it is heat pump or cooling only type and a settable operation mode is automatically determined B Settable operation mode Heat pump Fan Cooling Dry 1 Automatic Heating Cooling only Fan Cooling Dry 1 1 Dry operation is unavailable for FDQ 200 and 250 1 1 5 Fan Air Volume Control Settings of air volume for each operation mode when the thermostat is ON OFF are shown in the table below The air volume when the thermostat is OFF can be changed by field setting The table below shows the factory settings Applicable model Models other than the right FDQ125 FDQ200 250 Thermostat ON Setting Setting Cooling ThemostatOFF Setting B ThemostatON LL 1 LL 1 gt mememoOFF or u gt Thermostat ON E E a Heating Satin Seting ov Stop om o oF 50 Function and Operation SIBE26 701 Indoor Unit 1 1 6 Fan Airflow Direction Adjustment Control The control of horizo
24. YES Check for connector connections Remove and insert the connectors shown below Fan 1 e A1P X28A gt X6A A3P e A1P X20A gt X4A A3P e A3P X61A gt X402A A2P e A3P X1A lt gt X403A A2P e ASP X5A lt X5A AP e A3P X41A gt X3A A4P e A4P X4A Short connector YES Replace the noise filter of the A2P F400U of the A2P has been molten Connect the connectors to the corresponding color black or yellow On site cause Correct the wiring Mount the correct type of fan inverter PCO51 1 1 Replace the compressor M1C Replace the fan motor M1F Replace the fan driver PC board A4P Troubleshooting SiBE26 701 Diagnosis by Remote Controller Troubleshooting s the micro controller normal monitor green of the A1P blinking NO YES Check 10 or more seconds after the power supply is turned ON Power ON The A3P and A4P YES do not blink NO YES The A4P does not blink NO YES The LC malfunction recurs NO This is not LC Recheck for the malfunction code A3P Replace the inverter PCB If the PCB replaced is badly damaged the compressor is likely to get faulty To make sure recheck the compressor A4P Replace the fan driver PC board Replace the control PC board End of measures x The malfunction may temporarily result from on site causes Causes Instantaneous power failure open phase noises
25. display interval Setting Table Setting Switch No Setting Position No Seiting Long Life Filter fe Fi 1 3 3 Selection of Thermistor Select the thermistor to control indoor temperature i Thermistor that controls First Code No Second Code No indoor temperature Indoor air thermistor for 01 remote controller and suction air thermistor for 10 20 2 indoor unit Suction air thermistor for indoor unit The factory setting for the Second Code No is 02 and indoor temperature is controlled by the indoor unit suction air thermistor When the Second Code No is set to 01 the suction air thermistor and the remote controller thermistor are concurrently operated Their control is shown in the upper right figure 32 BGP 1 1 1 SG a aaa aaan O S E S 30 34 28 M mM M MM M Meeeeee eye F O 2 ee NEM Eos o u 5 30 uction air Suction air Suction air g Suction air S thermistor thermistor D Da thermistor r thermistor 28 Suction air Suction air Suction ar NN Suction air thermistor thermistor 22 thermistor thermistor thermistor 2 26 z P 9 20 24r a 18 22 16 20pSuE L US e 14 21 23 25 27 29 31 33 35 37 14 16 18 20 22 24 26 28 30 Air temperature C Air temperature C 1 3 4 Filter Cleaning Displayed or Not Displayed Whether or not to display Filter Cleaning after operation of certain duration can be selected First Code
26. 02 Delayed Defrost Str 08 Eary Defrost Star 1 Defrosting operation interval is the maximum length of time that heating operation continues Defrosting operation may start earlier than the preset time depending on operational conditions 34 Field Setting SiBE26 701 Field Setting of Outdoor Unit 2 2 Field Setting by Demand Adapter m A demand adapter optional KRP58M2 is used to make the following setting for outdoor units 1 Setting of demand operation by external input 2 Setting of low noise operation by external input Parts and Function B DS1 X81A and X800M cannot be used for RZQ200 and 250C models B For the connection of sky ene cut use the connector X14A on the control board Transmission connector X80A Connect to the connector X6A on the outdoor unit control PCB DST TE To X36A 1231 OFF x To X36 lt z To X66A Light electric harness Terminal specification 5 poles M3 screw Demand and low noise input terminal block X801M Connect control input from a remote area central supervisory board timer etc 2 2 1 Demand Operation by External Input If you want to reduce power consumption perform demand operation to forcedly restrict the outdoor unit capacity using a demand adapter optional KRP58M2 Types of demand operation Setting Demand description 70 of rated power consumption 40 of rated power consu
27. 112 Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 9 AF Failure of Drain System Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting FCQ FBQ FDQ FFQ FUQ 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 Despite the malfunction code being indicated the system continues operation m Error in drain pipe installation B Faulty float switch B Faulty indoor unit PC board m Dust clogging at the solenoid valve incorporated in the humidifier Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred AN Caution Are float switch and drain pipe normal NO Possible failure of float switch Check to see if drain up height and horizontal pipe length exceed specifications Is water drainage system normal NO Clogged drain water discharge system Clogged drain pump Faulty float switch Replace indoor unit PC board Is drain pump Check drain pump and drain normal pipe Check water drainage system Check to see if drain up height and horizontal pipe length exceed specifications pump stops operation drain water flow in reverse during nonoperatio
28. DAIKIN SiBE26 701 R 410A Service Manual RZQ200 250C7Y1B R 410A Heat Pump 50Hz d ig SiBE26 701 SkyAir R 410A Heat Pump GQLII 50Hz E 4 114010 80 0 mE V LI ANN V 2 FREE ix Part 1 General Information x nnununnunnunnunnunuununnunnunnunnunnunuunuunuununuun I 1 Model Name and Power Sufply ccccccccssecceseeceeeesseeeseeeeseeeeseeesseees 4 2 Possible Combinations and Standard Capacity for Twin Triple and Double Twin Operation cccccccceeceseeeceeeeceeeeceeeeceeeeseeeesees 5 3 PANNA PE cadueieumusotisbrn toits nasrin hendaia an a aari Ete idu ma Eiai 6 Part 2 SPANN arv LEN 8 h CU oe dto RTT 8 2 Electric Characteristics ore rr Deuce ada v ncn vao vnk rre ru arre ra orat EE 9 Part 3 Remote Controller 2 2 22 2 2nnnunzunuuuuuuuuuuuruuruururazs 11 1 Wired Remote Controller eeeeeeenn nn 12 ti SQW RET 12 te AUS TAU OFM Rm 14 2 Wireless Remote Controller arrrrnnarvnnnnvrnnnvnnennnvnnnnnnnnernevnnnnnernnnnenene 16 N PAUS ete 16 3 Method of Operating Remote Controller 18 3 1 The INSPECTION TEST Bu utton eeeeee een 18 32 Maintenance Mode SOIUDDLa nias ddexi sre uci XURCUE IA REM ER PK DAVE KE MM IA ATE ELK EERS 19 3 3 Operation of the Remote Controller s Inspection Test Operation Button rrraroranrrnnrernn
29. P3 fan determine te 7 NG U 15KQ resistance due SV 9 NS w W U Not less It may take time to than determine the voltage 2 to 15kQ V 1 2V due to capacitor W including charge or else 2 Diode module checking When using the analog type of multiple When using the digital type of multiple tester make measurement in resistance tester make i in diode check measurement mode in the x1kQ range mode FREE Criterion l EJEA Criterion care 1 Not less It may take time to than determine the voltage 2 J2 2 ke P1 J2 1 2V due to capacitor EIE Pi Ja including charge or else 4 4 vt Pi It tak Not less mea j 6 v3 Pt uu determine DE LX NS EN 15K0 resistance due 8 N3 Ja mn harge or else 9 NB EE Not less It may take time to than determine the voltage 2 to 15k 1 2V due to capacitor including charge or else Troubleshooting 179 Diagnosis by Remote Controller SiBE26 701 Check No 8 Check for inadequate refrigerant As criteria for judging whether refrigerant is inadequate or not refer to the following operating conditions lt Diagnosis of inadequate refrigerant gt In cooling operation 1 As suction superheat degree increases due to gas shortage the electronic expansion valve tends to open opens fully in order to avoid overheat operation 2 In response to decreased evaporator capacity caused by gas shortage capacity is controlled in t
30. TEST button is pressed 1 Press INSPECTION TEST button if L If no button is pressed p for 1 minute equipm ent returns to normal status 3 Press MODE selector When MODE selector button button is pressed or no button is pressed for 1 minute equipment returns to normal status If no button is pressed for 1 minute equipment returns to normal status 5 Press MODE selector button tO nt Bergen EE 52005 Troubleshooting 101 Diagnosis by Remote Controller SiBE26 701 4 2 Remote Controller Display Malfunction Code and Contents Failure of PC board assyforindoorunt o Matfunction of drain waterlevelsystem o o Indoor unit fan motor overload overcurrent lock Malfunction of swing flap motor SSS Failure of capacity setting Either capacity data is set incorrectly or capacity has not been set for the data IC Malfunction of heat exchanger temperature sensor system Malfunction of suction air temperature sensor system A1 A3 A6 A7 AF AJ C4 C9 CC Malfunction of humidity sensor system Failure of humidity sensor etc CJ Malfunction of remote control air temperature Failure of remote controller air thermistor etc sensor system Unit can be operated by indoor unit thermistor E Outdoor unit P C board malfunction E3 High pressure malfunction outdoor unit E4 Failure o
31. 499190 2X3 1V3H HOISIWH3HI IPY NIIT 1531 JHVd3Hd ZH 398vVH2S1Q DIN HOLSIWHSHL 164 FONVHO HOLINON 391AHISJANYTLOTId dl dlH H3EYOSAV JOUNS HLIM Y31113 3SION 17 NOJLONS HOLSTWHSHL I dY A087 WE 9 1 Jasna 3409 3114434 431114 3SION d NI4 HOLSINYIHL n dav A087 NE 9 L JSN ned FATYA AVM Y 3N1YA GTONIT0S div HIV HOLSINHIHL L diV A082 NSL E L 3sf3d nzd nid 39UNd SVD U341323U JATVA 10N3105 5NLLINIT 1N3HHf2 HOLSISIU dV 405920 V8 nis S 10H 3ATVA GIONITOS uols s3u 68H HILVIH 3SVOXNYU 9HI3 100 GIS 3A1YA NOISNYdX3 2INDULO313 drv u0SN3S INIYYND HOLSISIY HJLIMS did ZSG lsd NIVN 341A NOISNYdX3 21NOULO3T3 LINDHID 123130 TYSHIMIY ISYHd HOL 999 99 NOISSINSNVHI VO dIHIS TVNIWHSL dEV diV A1dd S H3MOd DNIHOLIMS 1504330 1531 NYNLIY 13S ICON AlddNS H3M0d dI4LS TYNINYIL NvJ HOLOW HOLIMS NOLLNE HSN g Isg 4IWJHOLIINNOOT VZX YIX H0SS3HdW02 YOLON NOLSSINSNYHL YO QuvOg LINJUID Q31NIUd dY ITNAOWN YIMDd HZA HLA U012V3H NY4 GHVOd LINQHID Q31N Ud diV 390149 30010 HLA 2H13 Av13H 2IL3N5VYN ANI Quvog 11081 31NTUd INdNI 321A30 ALI4VS dolA SCA AVTIH IL LINDYN YSA 431114 35 0N quvog LINDYN 31NIUd HILL INSNVHI 21 SZA AVTIH 2113N9VN ZI NIV QuvOE LINDY MINNE 39NVH0 2H0 N33U9 NH9 AVUS AH9 NAOHG NHg MOT13A MTA XNId XNd 31IHM lHM 3018 018 Q3H 03H 32V18 18 540103 l HdiS 391A30 NOIl2310Hd 3Hl LINDUIILUOHS L NOG YNILYHIGO N3HM 9
32. Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 124 re Le l RZQ Detect the motor lock when the compressor is energized If the motor rotor does not rotate when the compressor is energized Compressor lock High differential pressure 2 6MPa or more starting Incorrect UVWN wiring Faulty inverter PC board Stop valve is left in closed AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the installation conditions Is the stop valve open Open the stop valve Check and see whether compressor is short circuited or ground YES Replace the compressor NO Is high differential pressure starting 2 6MPa or more YES Remedy the cause NO or high pressure vary even instantaneously when restarting compressor YES Replace the inverter PC board A2P NO Replace the compressor Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 19 ET Malfunction of Outdoor Unit Fan Motor Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting rr RZQ Abnormality of fan motor system is detected according to the fan speed detected by hall IC when the fan motor runs B When the
33. Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 172 ur RZQ B Check transmission between the indoor and outdoor units with a microcomputer when the power is supplied m When wiring connecting the indoor and outdoor units is not proper B Poor wiring connecting the indoor and outdoor units AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred The phases of the wire connecting the indoor and outdoor unites are inconsistent Connect the wiring connecting the indoor and outdoor units properly Troubleshooting SiBE26 701 Check No 1 Check No 2 Troubleshooting Diagnosis by 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 Check on connector of fan motor Signal line 1 Turn off the power supply 2 Measure the resistance between Vcc and each phase of U V W and GND and each phase at the motor side connectors five core wire to check that the values are balanced within the range of 20 96 while connector or relay connector i
34. This is the new service manual for Daikin s Year 2007 RZQ C series Heat Pump 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 RZQ C series R 410A Heat Pump System May 2007 After Sales Service Division Introduction SiBE26 701 SiBE26 701 SkyAir GQLII Series Cooling Only Model Series EN 20087V38 250B7V3B Outdoor Units RZQ 200C7Y1B 250C7Y1B FBQ 10087V38 2 roa FH 100BUV1B 2 FUQ 100BUV1B 2 FAQ toopuviex2 RzQ 200c7Y18 Outdoor Units SiBE26 701 SiBE26 701 Part 1 General Information 1 Model Name and Power Supply rrnnnrnnnnonnanennnnnnnnnnnnnnennnrnnanennanennanennnne 4 2 Possible Combinations and Standard Capacity for Twin Triple and Double Twin Operation ccccccccesecseeeceeeeseeeeseeeeseeeeseueesees 5 3 EGNA ANNAT EE TD DO 6 General Information 3 Model Name and Power Supply SiBE26 701 1 Model Name and Power Supply Indoor Units Outdoor Units Power Supply FCQ50C7VEB RZQ200C7Y1B Ceiling Mounted Cassette Type FCQ60C7VEB RZQ200C7Y1B Multi Flow FCQ71C7VEB RZQ200C7Y1B FCQ100C7VEB RZQ200C7Y1B Ceiling Mounted Cassette Type FFQSOBV1B RZQ200C7Y1B 600x600 Multi Flow FFQ60BV1B RZQ200C7Y1B FBQ50B7V1 RZQ200C7Y1B B FBQ60B7V 1 RZQ20
35. board and restart operation YES Does it operate normally It is normal There is a possibility of malfunction caused by noise Check peripherals and restart operation Troubleshooting 163 Diagnosis by Remote Controller 4 40 SiBE26 701 18 Transmission Error between Main Remote Controller and Sub Remote Controller Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 164 nn n mes a Co All models of indoor units In case of controlling with 2 remote controller check the system using microcomputer if signal transmission between indoor unit and remote controller main and sub is normal Normal transmission does not continue for specified period B Transmission error between Main remote controller and Sub remote controller B Connection among Sub remote controllers Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred AN Caution Controlling with 2 remote controller SS 1switch on remote controller PC board is turned to Main Turn the SS 1switch of one remote controller to Main Turn OFF the power supply and restart operation Both SS 1 switches on remote controllers are turned to Sub Is the continuity in YES remote control wire Turn OFF the power once and restart operation Replace
36. code blinks in the remote controller of the other unit in the same refrigerant circuit YES NO The A9 code blinks in the remote controller of the other unit in the same refrigerant circuit The U4 code blinks in the remote controller of the other unit in the same refrigerant circuit 166 YES Make judgment again based on the indication after 2 minutes and over have passed Go on to the UA troubleshooting Go on to the A1 troubleshooting Go on to the A9 troubleshooting Go on to the U4 troubleshooting Go on to the U5 troubleshooting Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 42 uR Malfunction of Field Setting Switch and Transmission Line Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Lif i I All models of indoor units Incorrect field setting The number of indoor units connected to this system is more than limited B Indoor Outdoor Indoor Indoor transmission line m Faulty remote controller wiring 167 Diagnosis by Remote Controller Troubleshooting 168 or parts damage may be occurred AN Caution Is the outdoor unit simultaneous on off multi of the indoor unit NO YES Are the remote controllers connected to several indoor units YES NO
37. 4 7 As Indoor Unit Fan Motor Overload Overcurrent Lock 110 4 8 HT Malfunction of Swing Flap Motor cccccccsesecsseeeeeeeeeseeeeeseeeenees 112 4 9 AF Failure of Drain System rarennnnnennnnennnnnennnnnrnnnnennnnsennnnennnnsennnnnnnnn 113 4 10 Av Malfunction of Capacity Determination Device 114 4 11 C4 Malfunction of Heat Exchange Temperature Sensor System 115 4 12 C9 Malfunction of Suction Air Temperature Sensor System 116 4 13 t Malfunction of Humidity Sensor System sssssus 117 4 14 t Malfunction of Remote Controller Air Thermistor 118 4 15 E Failure of Outdoor Unit PC Board eeeeeeeeeeeeees 119 4 16 E3 Abnormal High Pressure Level ccccseccesececeeeeseeeseeeseeeeneeeenes 120 4 17 EY Low Pressure System Malfunction seeeeseeesseeeees 122 4 18 ES Inverter Compressor Motor LOCK ccccsececeeeeeeeeeseeeseeeeseeeeaes 124 4 19 EP Malfunction of Outdoor Unit Fan Motor ccccccccseeeeeeeeeeeeeeenees 125 4 20 E9 Malfunction of Moving Part of Electronic Expansion Valve 128 4 21 F3 Malfunction of Discharge Pipe Temperature 130 4 22 H3 Abnormal High Pressure Switch rrrnnrrnnnnrrnnnrrvnnnrnvnnnrnnnnrennnnennnn 13
38. 701 4 22 H3 Abnormal High Pressure Switch Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 132 Lin vi RZQ Detect the continuity of the high pressure switch via protection device circuit No continuity is detected at the high pressure switch during operation stop of the compressor Defective high pressure switch Disconnection of the wire harness of the high pressure switch Defective connection of the connector of the high pressure switch Defective PC board for the outdoor unit control circuit Disconnection of the lead wire Troubleshooting SiBE26 701 Troubleshooting Troubleshooting Diagnosis by Remote Controller AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred connector of the high pressure switch correctly connected to the outdoor unit PC board 1 YES ue Connect correctly Check the next procedure 10 minutes after the operation stop Is continuity of the high pressure switch detected 2 NO Replace the high pressure switch which has no continuity YES Is continuity of NO the lead wire detected Replace the lead wire YES Replace the outdoor unit PC board A1P 1 The connector No of the high pressure switch protection from high pressure is shown in the following table Model name PC
39. 82 Dur 114 Anti freezing Control cccccccsseeeeeeeeseeeeeeeeeeeeeens 52 Auto Restart after Power Failure Reset 29 Automatic Operation Mode Control 29 C o T 115 co T 116 s m E CER 117 Centralized Address Duplicated 169 Check Check for Clogged Points 176 Check for excessive refrigerant charging 182 Check for factors causing wet operation 183 Check for inadequate refrigerant 180 Check for Thermistors 177 Check on connector of fan motor Power supply vl TN 173 Check on connector of fan motor Sygnal Ta a 173 Check on pulse input of position signal of fan inverter PC board 173 If the high pressure is abnormally high 174 If the low pressure is abnormally low 175 Method of Checking the Inverter s Power Transistors and Diode Modules 178 ea a tusbe 118 Cold Air Prevention Control 53 Compressor Inverter Start up Error 149 Confirm Method of Malfunction Code 99 Cooling Heating Operation Starts but Stops Iritmedldtely oui ote pono Red m Ea e Roto cR ae 87 Correlation of Air Conditione
40. 9 after checking the field system combination indoor outdoor 91 Troubleshooting Based on Equipment Condition SiBE26 701 2 7 Equipment Operates but does not Provide Heating Applicable Model Error Detection Method Error Generating Condition Possible Cause Troubleshooting 92 All models of SkyAir series Excess charge of refrigerant Air intrudes into refrigerant system Faulty pressure switch Faulty magnetic switch for outdoor unit fan motor Faulty aux relay for outdoor unit fan motor Soiled heat exchanger of outdoor unit There is an interfering item in air flow of outdoor unit Malfunction of outdoor unit fan Soiled air filter of indoor unit Soiled heat exchanger of indoor unit There is some interfering item in airflow of indoor unit Malfunction of indoor unit fan AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the unit YES in defrost mode Wait for a while No abnormality Measure the temperature of suction air and supply air Temperature difference Suction air temp Supply air temp Temperature difference for heating should be between 14 and 30 C Does the heat load increase after installation of the unit a No abnormality Incorrect selection of model Affection of sunlight Affection of excessive fresh air into room YES Additional unit installation should be
41. 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 AN incorrect manipulation may damage equipment loose data get Caution an unexpected result or has to restart part of a procedure Warning A warning is used when there is danger of personal injury N Warning Reference A reference guides the reader to other places in this binder or in this manual where he she will find additional information on a specific topic viii SIBE26 701 Introduction Thank you for your continued patronage of Daikin products
42. Electronic expansion valve Avoid overheat operation by changing SH target value Degree of inadequate refrigerant Adequate level Inadequate 180 Troubleshooting SiBE26 701 Diagnosis by Remote Controller lt Diagnosis of inadequate refrigerant gt In heating operation 1 As suction superheat degree increases due to gas shortage the electronic expansion valve tends to open opens fully to avoid overheat operation 2 As suction superheat degree increases due to gas shortage compressor frequency decreases because suction superheat degree is controlled in order to prevent oil to the outdoor heat exchanger from being retained 3 Because of 1 and 2 above evaporator capacity and compressor frequency decrease despite a large difference large load between temperature set by the remote controller and indoor suction temperature resulting that high pressure cannot be maintained and heating capacity becomes unavailable Also a decrease in evaporator capacity frequently puts the system in defrost operation 4 If gas shortage worsens high pressure becomes smaller than saturated pressure equivalent to indoor heat exchanger temperature or indoor suction temperature High pressure Pressure sensor Gas shortage warning As compressor frequency I decreases high pressure decreases m EE Indoor heat exchanger temperature Th2 E i Abnormal gas shortage Maintains certa
43. In case of RZQ200 and 250C gt Outdoor unit fan Up to 7 steps normal In cooling In cooling Hp gt 3 14MPa Hp lt 2 74MPa In heating In heating Lp 0 61MPa Lp gt 0 71MPa Outdoor unit fan Up to 8 steps heavy load 64 Function and Operation SiBE26 701 Outdoor Unit 2 4 5 Protection Control 2 4 5 1 Low Pressure Protection Control Drooping control and protection control below mentioned are conducted to prevent low pressure from abnormal lowering When cooling operation When heating operation Lp lt 0 34 Lp gt 0 38MPa Lp lt 0 19MPa Lp gt 0 23MPa MPa 30 sec elapsed Compressor frequency 124 Hz Lp lt 0 13MPa Lp gt 0 17MPa Compressor frequency 62 Hz Lp lt 0 15 1 p gt 0 20MPa MPa Hot gas bypass valve ON Hot gas bypass valve ON Compressor frequency 62 Hz Lp lt 0 07 MPa continues 3 minutes elapsed Compressor stop 0 Hz Stopped 3 times in 100 minutes Malfunction stop E4 indication 2 4 5 2 High Pressure Protection Control Drooping control and protection control below mentioned are conducted to prevent high pressure from abnormal rising and activation of protection devices When cooling operation When heating operation Normal operation Hp 3 09MPa 90 sec elapsed Normal operation Hp 3 56 Hp 3 38 MPa MPa Compressor operation frequency 1 step 10 sec Hp 3 63 MPa Compressor operation frequency 62Hz Hp 3 68MPa 3 minutes elased Com
44. No Second Code Ns Upward Draft prevention Downward Ceiling soiling prevention Some indoor models are not equipped with upward draft prevention 1 3 16 Air Flow Rate Switching at Discharge Grille for Field Air Flow Rate Switching When the optional parts high efficiency 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 1 3 17 Setting of the Static Pressure Selection First Code No Second Code No External static pressure Standard 15Pa High static pressure Settings for each target model Te 0i Ceiingheighilessthansm 02 Ceigheghbeteendanid8m 0i Standard static presse C o fHighstaiepresse SS 1 3 18 Humidification when Heating Thermostat is OFF When the Humidification Setting is selected the humidifier is turned ON if the suction temperature is 20 C or more while the heater thermostat is OFF The humidifier is turned OFF when it is 18 C or less Mode No First Code No Second Code No Setting Humidification setting 1 3 19 Interlocked Operation between Humidifier and Drain Pump When a humidifier is incorporated in the indoor unit interlock setting becomes necessary whenever water is drained inside the unit When water is drained outside the unit this setting is unnecessary First Code No Second Code Ns Individual operation of humidifier 5
45. Push the SET BS2 button to set the LED display as shown in the Refrigerant recovery mode Push the RETURN BS3 button once Present settings are displayed lolejlejej e e o Push the SET BS2 button once to set the LED o operam recovery display of refrigerant recovery OFF ON RAER recovery a e Push the RETURN BS3 button twice to complete setting the electric expansion valve also opens 3 Connect the refrigerant recovery unit and start refrigerant recovery 4 Take either of the following steps to cancel the refrigerant recovery mode OR i e Return to the initial state by taking the steps above e Turn OFF the power of the outdoor unit B Demand 1 Operation Energy saving operation is performed by controlling the upper limit of compressor operation frequency through normal demand setting made by DIP switches or external contact input a Setting procedure using normal demand setting 1 Switch the DIP switch DS2 2 on the outdoor PCB from OFF to ON 2 Select from Modes 1 through 3 by taking the following steps using the BS buttons on the outdoor PCB A1P as needed Setting item Target power consumption Moiei Approx 00 Mode 2 Factory Setting Approx 7096 Modes Approx 80 Work procedure 1 Stop operation if it is in operation 2 Remove the front panel and then switch box cover 3 Set the mode in Demand 1 operation O ON e OFF O BLINK LED Display Operating procedure je rar
46. TEST button will blink the check indication 2 While in check mode pressing and holding the ON OFF button for a period of five seconds or more will clear the failure history indication shown above In this case on the codes display the malfunction code will blink twice and then change to 00 Normal the Unit No will change to 0 and the operation mode will automatically switch from check mode to normal mode displaying the set temperature Troubleshooting 99 Diagnosis by Remote Controller SiBE26 701 4 1 2 Self Diagnosis by Wireless Remote Controller If equipment stops due to a malfunction the operation indicating LED on the light reception section flashes The malfunction code can be determined by following the procedure described below The malfunction code is displayed when an operation error has occurred In normal condition the malfunction code of the last problem is displayed Procedure 100 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 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 short beep Conduct steps 3 and 4 Continue the operation in step 4 until a buzzer remains ON The continuous buzzer ind
47. UnNit ccc ce ceccccececececcececececceeacecsneavavenenearars 55 2 3 Table of Functions and Operations cccccccccsseeececeeeeeeceeeeeeesseeesaees 57 2 4 Function ic SE 61 3 List of Electrical and Functional Parts enn 71 S 1016 010 a 0 eee nen ee 71 a MEO rU MEI e MR RERO 72 d ENN NN 72 Part 6 Troubleshooting nnnuuuunnnnnnnnnnnnnnnnnnnnnnnnnnnnnuunnnnnunnnuuuunnus LO 1 Maintenance Inspections cccccccseececceeeceeeeeceeeceeeeeeeseeceeeseeeaeeeaess 75 1 1 Optimal Operation Condition rrnrrnnrrrranannnnnnanerranennnrnnanennnnennnnnnnnennnnen 75 1 2 Refrigerant Saturation Curve R 410A rrrarernnrernnrrnnnrrnnnrnnnnrnnnnnnnnennnne 78 1 3 Cautions in Handling New Refrigerant eeeeeeeeeeeseeese 79 2 Troubleshooting Based on Equipment Condition 83 2 1 Troubleshooting Based on Equipment Condition 83 2 2 Equipment does not Operate cccccccccseecceeeeceeeeeeeeseeeeceeeeeseeeneesaees 84 2 3 Indoor Fan Operates but Compressor does not 85 2 4 Cooling Heating Operation Starts but Stops Immediately 87 2 5 After Equipment Shuts Down It cannot be Restarted for a While 89 2 6 Equipment Operates but does not Provide Cooling
48. amount of time m Malfunction of transmission between optional controllers for centralized control and indoor unit B Defect of indoor unit PC board Troubleshooting SiBE26 701 Troubleshooting Troubleshooting Diagnosis by Remote Controller AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is transmission wiring disconnected or wired incorrectly Fix the wiring correctly Is the power supply turned on for indoor units displaying alfunction Turn indoor unit s power supply Has an indoor unit once connected been removed or its address changed NO Is YES Reset power supply simultaneously for all optional controllers for centralized control transmission with NO Is the group NO all indoor units No of malfunctioning Set the group No malfunctioning indoor units set correctly YES YES Replace indoor unit PC board the transmission wiring with the master YES E controller disconnected Fix the wiring correctly or wired incorrectly NO master controller s YES connector for setting master controller disconnected Connect the connector correctly NO Replace the centralized controller 171 Diagnosis by Remote Controller SiBE26 701 4 45 UF Transmission System Malfunction between Indoor and Outdoor Units Remote Controller Display Applicable
49. board Electric signal Connector 2 Resistance value in normal operation 100 Q and below 133 Diagnosis by Remote Controller SiBE26 701 4 23 47 Abnormal Outdoor Fan Motor Signal LI Remote Hi Controller Display Applicable RZQ Models Method of Detection of abnormal signal from fan motor Malfunction Detection Malfunction In case of detection of abnormal signal at starting fan motor Decision Conditions Supposed B Abnormal fan motor signal circuit malfunction Causes B Broken short or disconnection connector of fan motor connection cable B Fan Inverter PC board A4P malfunction 134 Troubleshooting SiBE26 701 Diagnosis by Remote Controller Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn power off connector of the fan motor correctly connected 1 NO Connect correctly YES Check the connector of the fan motor X2A Refer to 2 Is each of the resistance value normal in the above connector check 2 NO Replace fan motor YES Replace fan inverter PC Board A4P V3069 1 The connector No of fan motor is shown in the following table Mode PG board Symbol RZQ200 250C A4P X1A X2A 2 Measurement of resistance and judgment criteria for the fan motor 1 Turn off the power 2 In the condition that the connector or the relay connector
50. by the condenser side The following contents are provided by service engineer based on their field checks Further the number is listed in the order of degree of influence a In cooling operation Check items Possible causes Judgment 1 Does the outdoor unit fan run normally 1 Visual inspection 2 Is the outdoor unit heat exchanger 2 Visual inspection clogged 3 Is there clogging before or after the EV 3 Check if there is a temperature capillary difference before and after EV capillary Check if the main valve unit of EV operates by noise vibration 4 s the check valve clogged 4 Check if there is a temperature difference before and after check valve If YES the check valve is caught 5 Is the HPS normal 5 Check continuity by using a tester 6 Is the outdoor unit installed under such 6 Visual inspection conditions that short circuit easily occurs 7 ls the piping length 5 meters or less 7 Visual inspection 8 Does air enter the refrigerant system 8 Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant 9 Is the refrigerant overcharged 9 Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant a In heating operation Check items Possible causes Judgment 1 Does the indoor unit fan run normally 1 Visual inspection 2 Is the indoor unit heat exchanger 2 Visual inspection clogged 3 Is the indoor unit installed under such 3
51. cannot be leakage detector used nogen O9 Welders B Compatible and dividable B Screw Fi for R m Compatible and dividable however must be equipped Vacuum pump with a backflow prevention function when the pump is stopped Refrigerant ibid azeotropic additional charging m Sealing materials are Charging different those for R 22 mouthpiece B Screw specifications are different those for R 407C Scale for refrigerant B Used in place of a charging charging cylinder Troubleshooting 79 Maintenance Inspections SiBE26 701 1 3 3 Piping Connection m Since stricter prevention of impurity incorporation is required for new refrigerant be sure to blow nitrogen during brazing work B In addition to brazing pipe curing and vacuum drying must be surely performed in order to prevent impurity incorporation into the piping system and at the same time more complete construction management must be carried out m According to model the diameter of liquid and gas pipes is one size smaller ma me 20 55408 590 405408 9is oat 0 80 Troubleshooting SiBE26 701 Maintenance Inspections 1 3 4 Flaring and Flare Nut Precautions for flaring m Ensure chamfering filing Furthermore pay utmost care not to leave chips inside of piping B Apply an appropriate coating of refrigeration machine oil to the inner and outer surfaces of the flare nut to prevent any leaks Furthermore be sure to
52. considered Is the operation current less than specified level 1 Gas shortage possibly generates trouble Refer error code UO Check refer to KAn MI es Clogged air filter on page 180 Soiled heat exchanger x Malfunction of indoor fan Check each item motor Refer error code A6 Does indoor unit air flow rate down Refrigerant overcharge s the level Soiled heat exchanger of high pressure lower Short circuit of discharge air l than normal level Disturbing item in air flow Check each item Malfunction of fan motor of outdoor unit Refer error code E7 H7 Insufficient compression of compressor Insufficient circulation of Check each item refrigerant Faulty expansion valve S1995 1 For operating current refer to Electric characteristics on page 9 after checking the field system combination indoor outdoor Troubleshooting SiBE26 701 Troubleshooting Based on Equipment Condition 2 8 Equipment Discharges White Mist Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Humid installation site Installation site is dirty and with dense oil mists Soiled heat exchanger Clogged air filter Malfunction of fan motor Possible Cause Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the room temperature
53. discharge pipe temperature dose not rise Supposed Faulty discharge pipe thermistor Causes Faulty connection of discharge pipe thermistor Insufficient refrigerant amount Faulty compressor Disconnection of discharge pipe temperature thermistor piping 130 Troubleshooting SiBE26 701 Troubleshooting Troubleshooting A Caution Is the Diagnosis by Remote Controller Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred discharge pipe temperature high reS Abnormality in refrigerant See x1 system such as gas shortage faulty compressor etc Conduct NO inspection Is the discharge pipe NO thermistor correctly m correctly and connected operate the unit again YES Is the discharge pipe thermistor attached NO Attach the thermistor and to the discharge operate pipe the unit again YES Is the discharge pipe NO Replace the discharge pipe thermistor For some of the models replacement as a set of YES integrated thermister is required Refer to 3 Replace the outdoor unit PC board A1P thermistor characteristic normal 3X 2 x 1 Temperature varies depending on model type RZQ200 250C 115 C x 2 See Galle a eMe for Thermistor temperature Resistance characteristics x 3 The connector No of the discharge pipe thermister is shown in the following table 131 Diagnosis by Remote Controller SiBE26
54. disconnected measure the resistance between Vcc UVW and between GND UVW of the connector on the motor side 5 cores to check if the resistance at each position is balanced within 20 X2A 5 Gray C GND 4 Pink C Vcc Measure the resistance between Vcc 3 Orange C W GND UVW 2 Blue C V 1 Yellow C U V2799 Troubleshooting 135 Diagnosis by Remote Controller SiBE26 701 4 24 H9 197 15 Ig UP 9 Malfunction of Thermistor System Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 136 H9 43 5 06 J 1 JB RZQ Abnormality is detected according to the temperature detected by each individual thermistor When thermistor is disconnected or short circuited during operation B Faulty thermistor m Faulty connection of connector B Faulty outdoor unit PC board control PC board Troubleshooting SiBE26 701 Troubleshooting Troubleshooting Diagnosis by Remote Controller AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check connectors for connection 1 Connect correctly Remove thermistor from outdoor unit PC board then measure the resistance using a tester Replace the thermistor When a set of integrated thermister is equipped replace it as a set Replace the outdoor unit PC board 1 H9 Malfunction of out
55. enm 195 1 3 Procedure for Removal of Electrical Component Assembly 196 1 4 Procedure for Removal of PC Board eee 197 1 5 Procedure for Removal of Electronic Expansion Valve and Solenoid VANE Jaa 199 1 6 Procedure for Removal of Pressure Switch Pressure Sensor CIG ee 200 1 7 Procedure for Removal of COMPIeSSOL cccseccceeeeeeeeeeeeeseeeseeeeeees 201 1 8 Procedure for Removal of Thermistor eene 202 Drawings amp Flow Charts nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnunnnes V Table of Contents SIBE26 701 Introduction 1 Introduction 1 1 Safety Cautions Cautions and m Be sure to read the following safety cautions before conducting repair work Warnings B The caution items are classified into Warning and Caution The N Warning items are especially important since they can lead to death or serious injury if they are not followed closely The 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 B About the pictograms IN This symbol indicates an item for which caution must be exercised The pictogram shows the item to which attention must be paid C This symbol indicates a prohibited action The prohibited item or action is shown inside or near the symbol This symbol indicates an action that mu
56. fan runs with speed less than a specified one for 6 seconds or more when the fan motor running conditions are met m When connector detecting fan speed is disconnected m When malfunction is generated 4 times the system shuts down B Disconnection of connector m Malfunction of fan motor B The harness connector between fan motor and PC board is left in disconnected or faulty connector B Fan does not run due to foreign matters tangled B Clearing condition Operate for 5 minutes normal 125 Diagnosis by Remote Controller SiBE26 701 Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Cut the power supply to wait for 10 minutes Remove the foreign substance Check the connection of the connector Fan motor Relay connector X1A X2A or X1A X2A of the compressor inverter PC board Disconnection of the connectors is found YES Plug the connector Check the color of the relay Fan motor all white for power supply wires and signal wires Connection error is found in the relay connector YES Correct the connection of the relay connector 126 Troubleshooting SiBE26 701 Troubleshooting No continuity on the fan inverter PC board fuse FIU to rotate the fan manually with ease when removing the connector of the fan resistance value between the power supply wire terminal of f
57. for external factors noise etc Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 39 U5 Malfunction of Transmission between Indoor Unit and Remote Controller Remote L5 Controller Display Applicable All models of indoor units 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 m Failure of remote controller Causes m Outside cause noise etc m Connection of 2 master remote controllers When using 2 remote controllers Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred SS1 of both remote controllers is set to main YES Control by 2 remote controllers Set one of the remote controllers to sub turn off the power supply temporarily then restart operation Resets normally when power supply is turned off temporarily All indoor unit PC board microcomputer normal monitors blinking Indoor unit PC board replacement Malfunction could be produced by noise Check Replace the remote the surrounding area and controller and restart restart operation operation e g strong wireless machine etc Does it operate normally It is normal Replace the indoor PC
58. have been momentary power failure and others Continue operation Replace the inverter Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 30 L8 Inverter Compressor Overcurrent Remote LE Controller Display Applicable RZQ Models Method of Detect the current flowing at the power transistor Malfunction Detection Malfunction When the current at the inverter 2nd side shows the following values Decision 1 Current of 16 1A and over continues for 5 seconds Conditions 2 Current of 19 0A and over continues for 260 seconds Supposed m Compressor overload during operation Causes m Shorted or broken compressor coil m Faulty compressor if bearing is scratched m Faulty inverter PC board Troubleshooting 147 Diagnosis by Remote Controller Troubleshooting 148 AN Caution Power OFF Is the stop valve NO open YES Is the lead wire of the compressor normal NO Are the wiring and wiring connection to the compressor normal NO YES The insulation resistance is low i e not more than 100 kQ YES NO The compressor coil is disconnected YES NO Check 7 Is contiuity of the power transistor normal YES NO Connect the lead wire of the compressor to restart the operation Malfunction L8 recurs if the difference between high pressure and low pressure before restart is less than 0 2
59. item 2 4 5 7 refer to outdoor unit item 2 4 4 2 Inverter fin temperature protection control PMV control refer to outdoor unit item 2 4 4 3 refer to outdoor unit item 2 4 5 7 Low pressure protection control Overall current protection control refer to outdoor unit item 2 4 5 1 refer to outdoor unit item 2 4 5 7 High pressure protection control Low outdoor temperature cooling control refer to outdoor unit item 2 4 5 2 refer to outdoor unit item 2 4 5 6 Discharge pipe temperature protection control Simulated operation refer to outdoor unit item 2 4 5 4 refer to outdoor unit item 2 4 7 2 Oil recovery operation Thermostat OFF judgement Remote control Standby starting judgement Thermostat OFF by ATrs operation OFF judgement refer to outdoor unit item 2 4 3 2 judgement Oil recovery operation Thermostat OFF by freeze up protection refer to outdoor unit item2 4 6 3 refer to outdoor unit item 2 4 6 2 Pump down residual operation refer to outdoor unit item 2 4 5 5 Restart standby refer to outdoor unit item 2 4 2 1 Heating refer to outdoor unit item 2 4 3 2 refer to outdoor unit item 2 4 3 1 Malfunction stop judgement Oil recovery operation ending judgement 82541 Function and Operation 55 Outdoor Unit SIBE26 701 Heating operation AN Note Refer to outdoor unit item X X X means refer to Outdoor Unit P 57 and after in detailed descripti
60. l Model Series Name of Option FCQ C FFQ B FHQ BU FAQ71B FAQ100B Remote Controller BRC7F532F BRC7E530W BRC7E63W BRC7E618 BRC7C510W e eo 2 Explanation of Receiver FCQ C FFQ B FHQ BU LES 3PA63363 21T 3P107422 1F 3PA63363 25Z 3PA63363 8L 16 Remote Controller SiBE26 701 Wireless Remote Controller DISPLAY A SIGNAL TIMER RESERVE CANCEL BUTTON TRANSMISSION This lights up when a signal is being transmitted DISPLAY eu u Gh fA 35 G6 pa 33 se OPERATION MODE OPERATION MODE SELECTOR AIR FLOW DIRECTION ADJUST BUTTON BUTTON Press this button to select OPERATION MODE FILTER SIGN RESET BUTTON Refer to the section of MAINTENANCE in the operation manual attached to the This display shows the current OPER ATION MODE For straight cooling type A Auto and 3e Heating are not installed H M DISPLAY rig SET TEMPERATURE indoor unit This display shows the set tempera ture INSPECTION TEST OPERATION BUTTON 1 l DISPLAY mod mot PROGRAMMED TIME 7 This button is used only by qualified service persons for maintenance purposes This display shows PROGRAMMED TIME of the system start or stop DISPLAY 77 AIR FLOW FLAP controller does not work DISPLAY amp 4 FAN SPEED This receives the signals from the remote controller The display shows the set fan sp
61. life filter Ultra long life filter ES Thermostat sensor in remote controller Edi ANE MF time to clean air filter Display No display calculation Set when filter sign is not CR be displayed 1 21 Setting of the number of units for multi Pair Lm Triple Double Twin unit simultaneous operation Individual setting for multi unit Group M aM simultaneous operation Indoor unit fan OFF when cooling Normal Fan OFF heating is OFF T PMV Contra e 12 22 Fan speed when heating thermostat Set Fan Speed OFF 5 Automatic restart after power outage OFF ON reset 3 23 os air outlet velocity N H S Set when installed in place with ceiling Ney than 2 7 m Selection of air flow direction F 4 directions T 3 directions W 2 directions Set when a blocking pad kit has been installed ER flow direction adjustment Set at Equipped Not equipped Eu of decoration panel ES set air flow position setting Draft prevention Standard Ceiling Soiling prevention Rus set fan speed selection Standard Optional Optional fan speed control by air discharge accessory 1 accessory 2 E for phase control External static pressure setting To be Standard High Static Low Static set according to connected duct Standard Pressure High Pressure resistance Ceiling Setting 5 25 1 Humidification when heating Not equipped Equipped thermostat is OFF Drain pump humidifier interlock Individual Interlock selection Field set selection for individual No
62. pee ue eee Hee er Push and hold the MODE BS1 button of Setting mode 1 for 5 seconds or more and set to Setting mode 2 Push the SET BS2 button three times to set the LED display as shown in the table on the right Push the RETURN BSS button once Present settings are displayed 0 e e e e e e Modet jO e e e e 0 display as shown inthe table on the ight Mode 2 Factory Settings o e e e e o e E 12 523 rs RETURN BS3 button twice to make a Mode 2 Factory Setting ol e e e e o e Moe3 jo ejejejo e e b Setting procedure using external contact input Hefer to 2 2 Field Setting by Demand Adapter P 35 Field Setting SiBE26 701 d Note Field Setting Field Setting of Outdoor Unit B Defrost Changeover 2 Operation Used to shift the temperature that determines whether or not to enter defrosting operation Sifted temperature MODE 1 Factory Setting MODE 2 MODE 3 MODE 1 6 C Work procedure 1 Stop operation if it is in operation 2 Remove the front panel and then switch box cover 3 Set to Defrost changeover 2 operation O ON e OFF 0 BLINK perating procedure Push and hold the MODE BS1 button of Setting mode 1 for 5 seconds or more and set to Setting mode 2 Push the SET BS2 button three times to set the LED display as shown in the table on the right Push the RETURN BS3 button once Present settings are displayed Push
63. power switch before connect or disconnect connector Turn on power switch or replace fuse If high harmonics circuit breaker is not used on inverter compressor have the circuit breaker replaced Wait until power returns Normal Equipment starts operation 3 minutes later 3 min standby Diagnose based on error code on remote controller Normal Equipment starts operation 3 minutes later 3 min standby Diagnose based on error code on remote controller Check electric system For FCQ and FFQ both the indoor PC board and fan motor may have problems at the same time be sure to check both of them Troubleshooting SiBE26 701 Troubleshooting Based on Equipment Condition 2 3 Indoor Fan Operates but Compressor does not Applicable Model All models of SkyAir series Method of Malfunction Detection Malfunction Decision Conditions Possible Causes m Faulty thermistor m Faulty indoor outdoor unit PC board m Faulty magnetic switch m Faulty power transistor m Faulty compressor Troubleshooting 85 Troubleshooting Based on Equipment Condition SIBE26 701 Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Indoor unit fan runs at set airflow rate In cooling operation When air thermistor ambient temperature is higher than set temperature In heating operation When air thermistor ambient temperature is lower than s
64. sky air units The use of the remote control sensor can be enabled by changing field setting 10 20 2 02 to 10 20 2 01 Conditions The table below contains the condition in which the remote control thermostat is not used The remote controller thermostat is not used when The remote controller thermostat malfunctions Group control is used The set temperature air suction temperature combination is out of range See below graph Cooling The diagram below shows the operation range of the set temperature air suction temperature combination in cooling operation ts Set temp C E For cooling ts s th 1 21 23 35 Th Suction air temp C 20 S1118 Heating The diagram below shows the operation range of the set temperature air suction temperature combination in heating operation ts Set temp C For heating ts th 1 Lp ts th 1 30 28 emote controller thermostat perating zone 1 Differential zone ts th 10 f ts th 12 ee 27 330 15 29 Th Suction air temp C S1119 Function and Operation 49 Indoor Unit SIBE26 701 1 1 3 Program Dry Operation Function Function Detail The points of thermostat ON or OFF are determined according to the suction air temperature at the startup of unit operation The set temperature and flow rate are not displayed on remote controller Operation startup 5 i T e Thermostat E 9 ON Differential
65. the SET BS2 button to set the LED display as shown in the table on the right Push the RETURN BS3 button twice to make a decision Pump down operation 1 Stop operation 2 Completely close the liquid side stop valve and fully open the gas side stop valve 3 Set the indoor unit to fan operation 4 Push and hold the FORCED DEF BS5 button for 5 seconds or more When H2P blinks the setting is completed The compressor will soon start operation 5 Upon the completion of pump down operation the unit automatically stops so immediately close the gas side stop valve completely It may continue operation for up to 30 minutes 6 Recover refrigerant on the field piping side using the refrigerant recovery unit 7 Finally be sure to turn OFF the local switch and turn OFF the power After pump down operation UA appears on the remote controller and it is impossible to operate the unit even if the remote controller is turned ON again before turning OFF the power Because this model uses R 410A as refrigerant residual gas pressure after pump down increases which is not abnormal 43 Emergency Operation SiBE26 701 3 Emergency Operation There are three methods for emergency operation Select one that best suits its purpose Name Purpose Setting procedure Thermistor Protective unit F Drai Remark detection actuation e iul Pine UG Use the SS1 switch on Temperature is not F d operation for Forces servicing Use the DS
66. 0 ms vs o o exchanger Indoor Outdoor units e Suction air e Remote controller Air amp Outdoor air eSuction pipe Discharge Pipe Discharge Pipe Discharge Pipe C kQ C Sensor KQ C Sensor kQ C Sensor kQ eo 1200 400 mer mo 18 wo 4 40 125 420 wo 90 me mo 39 00 865 o 82 100 11 10 35 eo se so 72 160 ws 120 30 80 so so 67 180 102 140 29 10 488 so ose 100 96 160 27 wo seo so so mo oo 180 26 140 o 600 ss mo 85 100 25 10 53 60 o meo so wo 28 200 229 60 420 100 71 160 2 260 230 70 37 160 so mo 19 360 mo 80 27 160 s J s 193 0 19 180 4 C 2 0 4 0 Troubleshooting 177 Diagnosis by Remote Controller SiBE26 701 Check No 7 Method of Checking the Inverter s Power Transistors and Diode Modules Checking failures in power semiconductors mounted on inverter PC board A3P Check the power semiconductors mounted on the inverter PC board by the use of a multiple tester Items to be prepared e Multiple tester Prepare the analog type of multiple tester For the digital type of multiple tester those with diode check function are available for the checking Test points e Turn OFF the power supply Then after a lapse of 10 minutes or mo
67. 0C7Y1B Ceiling Mounted Built in Type FBQ71B7V3B RZQ200C7Y1B FBQ100B7V3B RZQ200C7Y1B 30 380 415V 50Hz High Static Pressure Type FDQ200B7V3B RZQ200C7Y1B FHQ50BUV1B RZQ200C7Y1B EE EE FHQ60BUV1B RZQ200C7Y1B ieee op FHQ71BUV1B RZQ200C7Y1B FHQ100BUV1B RZQ200C7Y1B p FUQ71BUV1B RZQ200C7Y1B Ceiling Suspended Cassette Type FUG7IBUVIB FUQ100BUV1B RZQ200C7Y1B FAQ71BUV1B RZQ200C7Y1B Wall Mounted Type FAQ100BUV1B RZQ200C7Y1B Ceiling Mounted Cassette Type FCQ60C7VEB RZQ250C7Y1B Multi Flow FCQ125C7VEB RZQ250C7Y1B Ceiling Mounted Cassette Type 600x600 Multi Flow FFQ60BV1B RZQ250C7Y1B uH m FBQ60B7V1 RZQ250C7Y1B Ceiling Mounted Built in Type FBQ125B7V3B RZQ250C7Y1B 30 380 415V 50Hz l FDQ125B7V3B RZQ250C7Y1B High Static Pressure Type FDQ250B7V3B RZQ250C7Y1B EE ER FHQ60BUV1B RZQ250C7Y1B eme di FHQ125BUV1B RZQ250C7Y1B Ceiling Suspended Cassette Type FUQ125BUV1B RZQ250C7Y1B i Note Power Supply Intake Outdoor Units 4 General Information SiBE26 701 Possible Combinations and Standard Capacity for Twin Triple and Double Twin Operation 2 Possible Combinations and Standard Capacity for Twin Triple and Double Twin Operation Possible Indoor Combination Simultaneous Operation Outdoor models 60 60 60 00 10 50 50 50 50 RZQ200C7Y1B 71 71 71 e KHRO22M20TA KHRQ250H 3x KHQ22M20TA 125 125 60 60 60 60 cad dodi Hid iol General Information 5 SiBE26 701 External Appearance 3 External Appearance Indoor Units
68. 102 Troubleshooting SiBE26 701 Diagnosis by Remote Controller sala ELLE Mec Open phase or voltage unbalance Oe Failure of capacity setting outdoor unit has not been set for the data IC Lack of refrigerant malfunction low level ey Lack of refrigerant malfunction high level ut Reversephasepowersuppy U4 Failure of transmission between indoor and Transmission between indoor and outdoor unit is outdoor unit not being correctly carried out U5 Failure of transmission between indoor unit and Transmission between indoor and remote remote controller controller is not being correctly carried out U8 Failure of transmission between main and Transmission between main and sub remote sub remote controller controller is not being correctly carried out U9 Malfunction of Transmission between Indoor and Outdoor units in the same system UA Number of indoor units connected to this system is more than limited etc UC address error of centralremote controller UE Transmission error Indoor unit Centralized controller UF Transmission error Indoor unit Outdoor unit Notes id Error occurs Error code displays automatically and system stops Inspect and repair it Caution Press Inspection Test button to display error code The system operates but be sure to inspect and repair it HE Waning Error code displays with blinking The system operates but be sure to inspect and repair
69. 2 Push the lower part of the mounting spring to pull out the suction pipe thermistor 3 Remove the discharge pipe thermistor 1 Cut the clamps one place for the heat shield 2 Push the lower part of the mounting spring to pull out the discharge pipe thermistor 202 Suction pipe thermistor R2T Dn JA EA AK Mi FN AN A H 3 X d N AN Warning Be sure to commence the disassembling work after 10 minutes or more elapsed from all power supplies have been turned off Procedure m Removal of the outdoor air temperature thermistor e Discharge pipe thermistor R3T Outdoor air temperature thermistor R1T dE Tg IOS Outdoor air temperature thermistor Jm ya pe IE ZZ m Removal of the suction pipe thermistor Thermistor bottom Mounting spring Heat shield y Removal of the discharge pipe thermistor Thermistor Removal Procedure SiBE26 701 RZQ200 250C7Y1B Step Procedure 4 Remove the heat m Removal of the heat exchanger s distribution Heat exchanger s intermediate exchanger s distribution pipe pipe thermistor temperature thermistor R5T thermistor Cut the clamps Capillary tub 2 places for the heat apillary tube shield Heat exchanger s LJ distribution pipe 11 Jp thermistor Pull hard the heat V r AE A RS H XB exchanger s distribution Ss I rss pipe thermistor together ANE x Pi D L with th
70. 2 4 23 HP Abnormal Outdoor Fan Motor Signal sseessssssss 134 4 24 HS JP I5 JE UP Ja Malfunction of Thermistor System 136 4 25 JR Malfunction of High Pressure Sensor seeesessssss 138 73 74 SiBE26 701 4 26 JC Malfunction of Low Pressure Sensor eeeeeeeeeese 140 4 27 L Faulty Outdoor Inverter PC board rvrnnrnrnnnvnnnnrvvnnrevnanennnrrennnnennnn 142 4 28 L Radiation Fin Temperature Increased 143 4 29 L5 Momentary Overcurrent of Inverter Compressor 145 4 30 LE Inverter Compressor Overcurrent rrrrrarrrrrrnnrrrrnnnnenrnanrennnnneennnn 147 4 31 L Compressor Inverter Start up Error rrrrrnnrnrnnnnrrnnnrennnnennnnrennnnrennn 149 4 32 LC Malfunction of Transmission between Inverter and Control PO BOSId s iin nt o te mitto Po rh ron Et bete beo ieee 151 4 33 PP Inverter Over Ripple Protection eeeseeeeeseeeee 154 4 34 P Defective Combination of Inverter and Fan Driver 155 4 35 UG Gas Shortage Malfunction rrrarerraneranrrnnnrrnnnrnnnrnnnnrnnanennannnnnenn 156 2 36 Ur Reverse P san 157 4 37 Ue Power Supply Insufficient or Instantaneous Failure 158 4 38 UY Malfunction of Transmission between Indoor and Outdoor
71. 25 Interlocked operation BENE humidifier and o pump Field Setting 31 Field Setting of Outdoor Unit SiBE26 701 2 Field Setting of Outdoor Unit 2 1 Field Setting from Remote Controller 2 1 1 Remote Controller Settings Field setting which was conventionally done only from outdoor units can be partly performed from a remote controller The setting procedure is same as that for indoor unit The table below contains the remote controller settings Factory settings uu Description Second No 16 or 26 Select from Low Night Disabled Automatic Low Night Noise Setting Factory low noise Noise Capacity Precedence setting activation setting Setting Capacity precedence setting Setting of starting 22h00 22h00 22h00 22h00 20h00 22h00 20h00 time and ending time 06h00 08h00 06h00 08h00 08h00 08h00 08h00 for the Low Night Noise un Setting setting Selection of Flat Disabled Flat Installation S installation setting applicable Standard Delayed Early Factory defrost defrost setting start start 1 Setting in Mode No 16 is group setting For individual setting of each outdoor unit use Mode No 26 and make settings for each indoor unit connected 2 The factory settings for Second Code No are shown in the boxes with thick lines in the table above 3 When returning to Normal Mode 88 may appear to initialize the remote controller 4 Do not set anything not shown above
72. A dig N pr 3 Remove the front panel Ec Cd 1 Unscrew the four screws and pull out the front panel middle 2 Unscrew the seven screws and pull out the front panel bottom SAN it i W View from Arrow A B There is a hook on the both sides of the front panel upper Protecti lt e wire guard 4 Remove the protective Hl mE wire guard m x Protective F 1 MLA wire guard 1 Unscrew the six LITT g screws tilt the upper I LET part of the protective T LAT b wire guard toward you CVA i and pull up the ap protective wire guard TT LET SERES Bottom frame 194 Removal Procedure SiBE26 701 RZQ200 250C7Y1B 1 2 Procedure for Removal of Fan Motor Procedure AN Warning Be sure to commence the disassembling work after 10 minutes or more elapsed from all power supplies have been turned off Step Procedure Pons m Remove the top panel assy and front panel Hexagonal middle according to the wrench procedure for Removal AT n Related to Outside Panel SE Propeller fan Loosen the four EIUS mounting screws M10 pe box using a hexagonal cover wrench 5mm B Precaution for mounting the fan a SJT VU ag The hub has a D shaped Pull up the propeller deo CS WU AM hole fan P a SWR AAA Use the D shaped c
73. A3P 2 K2 contact disposition NO lt When voltage monitoring is possible gt fusion or contact is poor 3 Loose or disconnected noise filter Is the voltage imbalance applied to the inverter in excess of 14 V Y1 2 Using a device capable of constant recording of power supply voltage record power supply voltage between 3 phases L1 L2 L2 L3 L3 L1 for about one continuous week 1 Measure voltage at the X1M power supply terminal block 2 Measure voltage at terminals L1 L2 and L3 of the diode module inside the inverter while the compressor is running No abnormalities are observed in the power Power supply voltage imbalance supply but the imbalance in voltage recurs me dois Replace the inverter PC board A3P Explanation for users In 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 154 Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 34 P Defective Combination of Inverter and Fan Driver Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting RZQ To be detected ba
74. B Faulty outdoor inverter PC board A3P Causes e IPM failure e Current sensor failure e Failure of IGBT or drive circuit Troubleshooting AN 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 It is believed that external factors noise etc other than failure caused the malfunction NO Is the power transistor normal NO if the insulation resistance of the compressor is more than100kQ YES NO Replace the compressor M1C and the inverter PC board A3P for the compressor at the same time YES Replace the inverter PC board A3P Is the power transistor for the fan driver normal NO Replace the inverter PC board A3P for the compressor and the fan inverter PC board A4P YES Replace the inverter PC board A3P 142 Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 28 L4 Radiation Fin Temperature Increased Remote LY Controller Display Applicable RZQ Models Method of Fin temperature is detected by the thermistor of the radiation fin Malfunction Detection Malfunction Decision Conditions Supposed B Activation of fin thermal switch 93 C or more Causes B Faulty outdoor unit inverter PC board BW Faulty fin thermistor Troubleshooting 143 Di
75. BE26 701 Diagnosis by Remote Controller 4 43 UC Centralized Address Duplicated Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting UL All models of indoor units Indoor unit microcomputer detects and judges the centralized address signal according to the transmission between indoor units When the microcomputer judges that the centralized address signal is duplicated UC error code is displayed but the system operates continuously B Faulty centralized address setting B Faulty indoor unit PC board AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred The centralized is address setting Make setting change so that the centralized duplicated address will not be duplicated 169 Diagnosis by Remote Controller SiBE26 701 4 44 UE Malfunction of Transmission between Centralized Controller and Indoor Unit Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 170 Ut NN DP Central remote controller 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
76. BE26 701 Electric Characteristics 2 Electric Characteristics Unit combination Power supply Comp NC CNN NL NN ee Jfr foe Doe Dm em ee we Jer om or pm co ee we px om om or mpm ree me om Po om pe quem er we Jer om or ore ore Pree me oe om pe quem ora pw om om or dem Pee me oe om or qe ora Pee fm e oe om or oe ane Pee fm oe om or ose ane eaey Tox ee e Je om eee e mpm e oe om or qum re me oe om pe quem re me ow om or oom ooo Pee we oe om or Temm es me or om pe pem ore pm a Jer om pe rome e ee we fa oe om or frase oe ee we fr oe om or frome em ree oe oe om or ome oe no we oe om or mp pw p oe om or ome roe ee me e oe om pe fom or ao ae or om pe pem m Deme fer om pe ome e Max 50Hz 415V M wr x ee Lee ie ae eT He Se ae E oe fee e riw w pese ve e mex pe purus pe wo Specifications 9 Electric Characteristics SiBE26 701 10 Specifications SiBE26 701 Part 3 Remote Controller 1 Wired Remote Controller rrrrrvrnnnnnnnnnnnnnnnnvnnrnvnnnvnnnnnnnevnnvnevnnnnnnnnvunnnne 12 ML FE eee ee eee 12 ke icis 14 2 Wireless Remote Controller eeecen n 16 MMEL uU c RENS 16 3 Method of Operating Remote Controller sse 18 3 1 The INSPECTION TEST Button
77. C board 1 When there is a relay connector between the connector X204 on the indoor PC board and the fan motor check if the relay connector is correctly connected Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 6 AF Malfunction of Indoor Unit Fan Motor Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting T NL FAQ100 FHQ To be detected based on transmission failure of the signal by the fan motor for detecting the number of rotation When number of rotation can not be detected even at the maximum output voltage to the fan B Defective indoor unit fan motor B Disconnection B Defective contact AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Are X20A and X 26A securely connected we Correctly connect these Check if defective connection for the connectors or disconnection are found Unplug X26A with power being supplied to check if direct current voltage of approx 12V is supplied between the pins 1 and 3 of X26A Check the fan motor of the indoor units and the wiring circuit of the motor Replace the indoor unit PC board 109 Diagnosis by Remote Controller SiBE26 701 4 7 AS Indoor Unit Fan Motor Overload Overcurrent Lock bt bt
78. Check for Dower supply voltage Voltage between phases 380 to 415V Phase voltage 220 Power ON VE ower SU Not more than 2 Phase voltage of not more than approx 5V Disconnect the cable from the compressor and then check Power OFF the compressor for the insulation resistance insulation resistance is YES low i e not more than 100kQ Disconnect the cable from the fan and then check the fan motor for the insulation resistance Insulation resistance is YES low i e not more than 1MQ NO Check the inverter power transistor Has the power transistor YES got faulty NO Check the fan driver power transistor as the YES power transistor got faulty NO Troubleshooting On site causes Make proper wire connections without open phase erroneous connections or erroneous order of phases On site causes Correct the unbalanced loads to eliminate the unbalanced state Unbalanced voltage will cause extremely unbalanced current thus impairing the service life of or resulting in the malfunction of the equipment Replace the compressor M1C Replace the fan motor M1F Replace the fan driver A4P Replace the inverter PC board ASP xx Observe the conditions of the PC board In the case of a serious failure a compressor failure may cause the failure of the PC board Even if the PC board is replaced it may cause failure again To avoid that re
79. MPa SiBE26 701 Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Open the stop valve Replace the lead wire of the compressor Correct the wiring and wiring connection Replace the inverter compressor M10 Replace the inverter compressor M10 Replace the outdoor PC board A3P Continue operation Defect of pressure equalizing in the refrigerant circuit Check the compressor M1C Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 31 L9 Compressor Inverter Start up Error Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting LS RZQ This malfunction code will be output if overcurrent occurs at the time of startup When the startup control is failed When an overcurrent is passed to the inverter due to the malfunction of a compressor or electrical system B Defect of compressor B Failure to open the stop valve m Pressure differential start B Faulty compressor connection B Defect of inverter PC board AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the stop valve open YES Are wire connections properly made according to the Wiring Diagram Open the stop valve Rectify the wire connections
80. No Second Code No Filter Cleaning Display 10 20 Field Setting 27 Field Setting of Indoor Unit SiBE26 701 1 3 5 Setting of the Number of Units for Multi Unit Simultaneous Operation When using multi unit simultaneous operation change the Second Code No according to the number of units connected as shown in the following table The factory setting for the Second Code No is 01 the number of unit connected First Code No Second Gode No o fo Twin Muli 2 Triple Mult 3 Double Twin Multi 4 Twin Multi Triple Multi 3 wires 3 wires 3 wires Indoor unit master 02 setting Remote Controller Remote Controller Double Twin Malti 3 wires 3 wires 3 wires 04 setting unit i Note 1 Ifthere is a setting error connection error malfunction display on remote controller UR will result A detection time of 3 minutes is required after turning on the power 2 f different unit models are connected use the one with the largest number of functions as the master unit Remote Controller 1 3 6 Individual Setting for Multi Unit Simultaneous Operation When master and slave units are set separately follow the procedure below 1 For individual setting of a slave unit switch the Second Code No to 02 individual setting The factory setting for the Second Code No is 01 unified setting First Code No Second Code No Unified settin Individual setting Set the master u
81. OILJ3NNO HOOQNI SHL SV 3715 JAVS 3HL 3AVH MM aM QINOHS SLINA Y000N JHL ANY HONVS8 JHL N33M4138 Sddid SHL ALON ONdld quu ONdld 1194 LINN 40001NO H3DBNVHJX3 I1V3H 4000NI uodo ddid HONV38 uo3auuo2 D uulg g apis Duidid ajis uo uo Jod a3IAJ8S UJM BAIDA COIS Josuas aJnssaJd MOT DNIdld dls 3qni AID IdD DNIdld 1919 V 0 ONdld C ld JAUIDIIS Jossaidwo UIJIMS aunssaid YBH JO H3DBNVH2OX3 1V3H 8000NI HO LVSVd3S AJDA piouajog XO ONIdld Cals SADA Duijp nbaJ 3JrssaJd Josuas aJnssaJd YDIH ES ONIdld Q 1419 9A DA ADM JNO4 H3ONVHOX3 I1V3H SOOCNI SAJDA uoisuDdxa aapa uoisupdxa 71404 2314 31U01 93 3 AIDA BATDA PU psu of adid JADUDUIX3 Da 83AIH238 piouajos AK 18000 Y JeUIDJIG 189 Appendix SiBE26 701 iagrams D iping P 2 4 Double Twin RZQ200 250C7Y1B V SVOBCMLE SNOILISNNOD YOOCNI AHL SV 3215 AWVS 3Hl JAVH QINOHS SLINN SOOQNI SHL ONY HONVS8 SHL N33M4138 S3dld JHL ALON LINN 8000100 UOHIBUUOI aJDjj uulg j apis Buidid ajis uo uo Jod 33IAJ8S YIM JAJDA do S Josuas aJnssaJd MO aqni KJD IdD Y 0 ONidid I 145 J0SSa IQulo JAUIDIIG YJJIMS 3JNSsaJd ubi lO YOLVYVdsS SAIDA BuijpjnBaJ aJnssaJd JOSUSS aJnssaJd ubi de JADA DM JNO4
82. Outlets BEN Standard N Lower than 2 7 m Lower than 3 0 m Lower than 3 5 m High Ceiling em Lower than 3 0 m Lower than 3 5 m Lower than 3 8 m Higher Ceiling S Lower than 3 5 m Lower than 3 8 m O First Second Ceiling height Eg ur Setting 4 way Outlets 3 way Outlets 2 way Outlets Ex E Standard N Lower than 3 2 m Lower than 3 6 m Lower than 4 2 m High Ceiling us Lower than 3 6 m Lower than 4 0 m Lower than 4 2 m Higher Ceiling S Lower than 4 2 m Lower than 4 2 m b 1 3 13 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 F 4 direction air flow 13 23 T 8 direction air flow W 2 direction air flow FFQ can not set two direction air flow 1 3 14 Setting of Air Flow Direction Adjustment Only the model FBQ has the function When only the front flow is used sets yes no of the swing flap operation of down flow Setting Table First Code No Second Gode No Down flow operation Yes 3 23 Down Down flow operation No Down flow operation No No 30 Field Setting SiBE26 701 Field Setting of Indoor Unit 1 3 15 Setting of Air Flow Direction Adjustment Range Make the following air flow direction setting according to the respective purpose 7 82537 Setting Table First Code
83. Pressure protection board T 3 15A 250V For noise filter B board F400U T 6 3A 250V For QA transfer Function and Operation 71 SiBE26 701 Operation Range 4 Operation Range imits Operation L 4 1 Heating Cooling abueJ uo 1eJado snonu 4uo dn 6uruJeM uorieJodo 10 o6ueld JILGLMO V UMOP Nd UO 1IRLJAdO J0 36UkI 9 QPMO V abueJ uo 3eJadO snonu 1Uu02 IE TT SESSSs dq e ni Jooping Indoor temp C DB Indoor temp C WB 4TW26566 Function and Operation 72 SiBE26 701 Troubleshooting Part 6 Troubleshooting Maintenance Inspections ccccceccseeceeeceeeceecaeeceeccuecaeeseeeneeeceesseneas 75 1 1 Optimal Operation Condition rrarenanrrnnnennnrennnrrnnnennnennanennnnnnnnnnnnennnnen 75 1 2 Refrigerant Saturation Curve R 410A rrrrenanrrnarevnnrrnnrennnrrvnnnnnnnennnnen 78 1 3 Cautions in Handling New Refrigerant eeeeeeeeeeeeseeese 79 Troubleshooting Based on Equipment Condition 83 2 1 Troubleshooting Based on Equipment Condition 83 2 2 Equipment does not Operate cccccccccesccseeeeceeeceeeecseeseeeseueeseeessaaes 84 2 3 Indoor Fan Operates but Compressor does not 85 2 4 Cooling Heating Operation Starts but Stops Immediately 87 2 5 After Equipment
84. Procedure 1 Remove the electronic expansion valve Rotate the electronic expansion valve main coil by 20 30 degrees and then pull it up Electronic expansion Electronic expansion valve main body Y1E valve main coil Y1E Remove the brazing from the two places to remove the electronic expansion valve main body Electronic expansion valve Super cooling coil Y2E Rotate the electronic expansion valve Super cooling coil by 20 30 degrees and then pull it up Electronic expansion valv Super cooling body Y2E Remove the brazing from the two places to remove the electronic expansion valve Super cooling body Solenoid valve Unscrew one screw to receiver gas remove each coil for the solenoid valve Remove the brazing from the two places to remove each body of the solenoid valve Solenoid valve hot gas bypass Brazing Removal Procedure Preparations e Remove the front panel according to the procedure for the removal related to the outside panel Remove the electrical component box according to the procedure for removing the electrical component assembly Precaution for mounting the coil for the solenoid valve Y Align the dimple of the solenoid valve and the stopper of the coil for the solenoid valve and then push them in until you hear them click Stopper Removal of the solenoid valve Solenoid us valve coil Solenoid valve body Brazing Before
85. Setting of Indoor Unit SiBE26 701 1 Field Setting of Indoor Unit 1 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 following 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 1 1 1 Wired Remote Controller BRC1D52 type s me FIRST uL CODE NO f1 croup H B CU FIELD SECOND SETTING SET CODE NO eir MODE 5 1 When in the normal mode press the button for a minimum of four seconds and the FIELD SET MODE is entered 2 Select the desired MODE NO with the button 2 During group control when setting by each indoor unit mode No 20 21 22 and 23 have been selected push the gt button 3 and select the INDOOR UNIT NO to be set This operation is unnecessary when setting by group Push the 4 upper button 4 and select FIRST CODE NO Push the 2 lower button 5 and select the SECOND CODE NO Push the button 6 once and the present settings are SET Push the button 7 to return to the NORMAL MODE Go NO OS Example If during group setting and the time to clean air fi
86. Shuts Down It cannot be Restarted for a While 89 2 6 Equipment Operates but does not Provide Cooling 90 2 7 Equipment Operates but does not Provide Heating 92 2 8 Equipment Discharges White Mist ccccscccseeceeeceeeceeeceesseeseeesaees 93 2 9 Equipment Produces Loud Noise or Shakes eeess 94 2 10 Equipment Discharges Dust ae tene ee aes 95 2 11 Remote Controller LCD Displays 98 1 rununnnnnnvrnrrvvnnrrvrnnrevnnrrrnnnrevrnrrnnnnn 96 2 12 Swing Flap does not Move renrnrnnnnnnnnrnnnnnnnnvnnnnvnnsnnnnnrnnnnrnnnnnnnnnnnnesnnnn 97 Procedure of Self Diagnosis by LED eeeeeeeesseeeese 98 3 1 Troubleshooting by LED on Outdoor Unit PC Board 98 Diagnosis by Remote Controller cccccccccsssecceeceeceeeeceeeeeseeeessaaees 99 4 1 Confirm Method of Malfunction Code cccccccseeccseeeeeeeeseeeeeneeenaeees 99 4 2 Remote Controller Display Malfunction Code and Contents 102 4 3 AP Failure of Indoor Unit PC Board rernnnrrnrnrrvnnnrrvnnnrnnrnrennnnrennnnennnn 104 4 4 A Malfunction of Drain Water Level System Float Type 105 4 5 AS Malfunction of Indoor Unit Fan Motor seessssssss 107 4 6 AS Malfunction of Indoor Unit Fan Motor eese 109
87. TON 00 om These buttons are used to adjust the clock or when in programming mode to adjust the programmed action time Both buttons have an auto repeat function 32 TEMPERATURE ADJUST BUTTONS 6 ed These buttons are used to adjust the current setpoint or when in programming mode to adjust the programmed setpoint temperature step 1 C Both buttons are also used to adjust the day of the week 33 OPERATION CHANGE MIN MAX BUTTON fa This button is a multi purpose button Depending on the previous manipulations of the user it can have following functions 1 select the operation mode of the installation FAN DRY AUTOMATIC COOLING HEATING 2 toggle between minimum temperature and maximum temperature when in limit operation 34 SETPOINT LIMIT BUTTON O 18 This button toggles between setpoint limit operation or OFF programming mode only 35 FAN SPEED BUTTON amp amp This button toggles between L Low H High HH very High Automatic 36 AIR FLOW DIRECTION ADJUST BUTTON t This button enables to adjust the air flow direction 37 AIR FILTER CLEANING TIME ICON RESET BUTTON This button is used to reset the air filter cleaning time icon Wired Remote Controller SiBE26 701 1 2 Installation 1 Remove the upper part of remote controller Insert minus screwdriver into the slots in the lower part of remote Upper Part of controller 2 places and remove Remote Controller emm the upper pa
88. Unit rrrnnnrrnrnnnvrnnnnvrnnnrvnnnernnnrennnnennnn 161 4 39 US Malfunction of Transmission between Indoor Unit and Remote Controller 163 4 40 U8 Transmission Error between Main Remote Controller and Sub Remote Gonlroller 3 oet mie E ESN 164 4 41 US Malfunction of Transmission between Indoor and Outdoor Units in the Same System ccccsseeeeccseeeeceeeeeseeeeeeeseeeeeeas 165 4 42 UR Malfunction of Field Setting Switch and Transmission Line 167 4 43 UC Centralized Address Duplicated ssesusse 169 4 44 UE Malfunction of Transmission between Centralized Controller and GOOF UN PT 170 4 45 UF Transmission System Malfunction between Indoor and Outdoor Units eeeeeeeeseessse 172 Troubleshooting SiBE26 701 1 Maintenance Inspections 1 1 Guide Lines for Optimal Operation Condition d Note Troubleshooting Optimal Operation Condition Maintenance Inspections The operation value guide lines when operating under standard conditions at Rated frequency by pushing the test run button on the remote controller are as given in the table below Indoor Unit Fan H Operation Compressor Rated Frequency High Low Discharge Pressure Pressure Pipe Mpa Mpa Temperature C 2 62 3 39 0 60 0 98 60 100 Suction Temperature Side Side C Indoor
89. Unit Outdoor Unit Differential Between Differential Between Suction Suction Temperature Temperature and and Discharge Discharge Temperature Temperature C C Figures given inside parentheses are in unit of kg cm Standard Conditions EE Indoor Unit Conditions Outdoor Unit Conditions Cooling Operation 27 C DB 19 C WB 35 C DB Heating Operation 20 C DB 7 C DB 6 C WB B During or after maintenance when the power supply is turned back on operation restarts automatically by the auto restart function Please exercise the proper caution Drain pumping out device built in Condensate removed from the room during cooling If the natural evaporative humidifier option is installed it works also during the heating operation Model name model name plate Inside of suction grille Indoor unit MP is Air filter suction grille l Suction grille NLI E e Discharge air ae LL amp E FE Remote controller Depending on the system configuration the remote controller is not provided Drain pipe Air flow flap at air outlet Air outlet Refrigerant piping connection electric wire a Outdoor unit ATT IN Ground wire The line passes electricity from the inside unit to the ground to prevent accidental electrical shock 75 SiBE26 701 Maintenance Inspections Correlation of Air What happens in comparison to norma
90. Visual inspection conditions that short circuit easily occurs 4 Is there clogging before or after the EV 4 Check if there is a temperature capillary difference before and after EV capillary Check if the main valve unit of EV operates by noise vibration 5 s the check valve clogged 5 Check if there is a temperature difference before and after check valve If YES the check valve is caught 6 Is the HPS normal 6 Check continuity using a tester 7 ls the piping length 5 meters or less 7 Misual inspection 8 Does air enter the refrigerant system 8 Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant 9 Is the refrigerant overcharged 9 Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant Troubleshooting SiBE26 701 Check No 4 Diagnosis by Remote Controller If the low pressure is abnormally low Conception Abnormally low pressure level is mostly caused by the evaporator side The following contents are provided based on field checking of Service engineer Further the number is listed in the order of degree of influence a In cooling operation Check items Possible causes Does the outdoor unit fan run normally Is the indoor unit filter clogged Is there clogging before or after the EV capillary on gt 4 Is the check valve clogged 5 Is the LPS normal 6 Is the indoor unit installed under such conditio
91. able 2 wire See NOTE 2 0 75 1 25 mm NOTE 1 Peel the shield and sheath for the part that is to pass through the inside of the remote controller case as shown in the figure below E Peel the shield and sheath 2 Shield wire 2 wire can be used for remote controller wiring but it must confirm to EMC Electromagnetic Compatibility Australian regulation DA PC o A VERTIT controller Wired from the rear Wired from the top 4 Reattach the upper part of remote controller Be careful not to pinch the wiring when attaching NOME x First begin fitting 1 The switch box and wiring for connection are not from the clips at included the bottom 2 Do not directly touch the PC board with your UH hand If controlling one indoor unit with two remote controllers Change the MAIN SUB changeover switch setting as described below Set one remote controller to main and the other to sub Main Remote Sub Remote NOTE Controller Controller e If controlling with one remote controller be sure to Factory Set Ie set it to main e Set the remote controller before turning power supply on Ha is displayed for about one minute when the power supply is turned on and the remote controller cannot be operated in some cases S1020 Remote Controller 15 Wireless Remote Controller SIBE26 701 2 Wireless Remote Controller 2 1 Features Names and Function
92. agnosis by Remote Controller Troubleshooting 144 SiBE26 701 AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred temperature of the radiator fin increased up to 93 C YES NO Turn the power off to measure the resistance value of the radiator fin thermister Is the resistance value of the thermister normal NO YES Plug and unplug the connector for the fin thermister X111A to fix correctly Supply power and start Operation to check if the malfunction occurs again YES NO Defective radiation of the power unit The air intake is closed Dirt of the radiator fin The outdoor temperature is high Replace the thermister Replace the inverter PC board A3P Continue operation OG There is a possibility of high temperature of the radiator fin caused by any field factors Check the following items Dirt of the radiator fin The flow of the air is blocked due to any dirt or foreign substances Fan propeller is damaged The outdoor temperature is too high Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 29 L5 Momentary Overcurrent of Inverter Compressor Remote L5 Controller Display Applicable RZQ Models Method of Malfunction is detected by converting the current flowing in the power transistor Malfunction Detection Malfunction W
93. an motor and the motor frame metal is 1MQ and below Check the fan motor connector power supply wire The resistance value between UVW phases of fan motor is out of balance or short circuit between UVW YES NO Check the fan motor connector signal wire The signal wire short circuits between Vcc and LES Put the power supply ON to check the following LED lamps HAP lamp above the compressor inverter PC board A2P HAP lamp for the A4P does not blink on the condition that HAP lamp for A4P is blinking YES NO Diagnosis by Remote Controller Replace the fan inverter PC board Replace the corresponding fan motor Replace the corresponding fan motor Replace the corresponding fan motor Replace the corresponding fan motor Replace the fan inverter PC board Replace fan motor 2 127 Diagnosis by Remote Controller SiBE26 701 4 20 5 Malfunction of Moving Part of Electronic Expansion Valve Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 128 RZQ Check disconnection of connector Check continuity of expansion valve coil Error is generated under no common power supply when the power is on Faulty electronic expansion valve Broken wire of the electronic expansion valve harness Faulty connection of the electronic expansion valve connector External factor no
94. apacity 5 Power Supply Insufficient or Instantaneous FANG ES 158 Procedure of Self Diagnosis by LED 98 Program Dry Operation Function 50 Protecliori COMMONS ioco Doo Eee vota pns ethos Eod 65 R Radiation Fin Temperature Increased 143 Refrigerant and Refrigerant Oil 79 Refrigerant CharQe ccccccssssceccsssseeeeseeeeeseeeaeees 81 Remote Controller LCD Displays 88 96 Remote Controller Service Mode 22 Remote Controller Settings 32 ROMMET TOO ane 79 Reverse Phase essere 157 S Salely Causes V Selection of Thermistor eessessuuss 27 Servicing FIG IO c RM 70 Setting Contents and Code No 26 Setting Mode 1 ute ei tte ib eto Cete dbetestios 39 Setting of Air Flow Direction Adjustment 30 Setting of Air Flow Direction Adjustment Range 31 Setting of Defrost Start Time 34 Index SiBE26 701 Setting of the Number of Units for Multi Unit Simultaneous Operation 28 Setting of the Static Pressure Selection 31 SDecITICallOL S aan 8 Stand BVyisietec tiu e us esc pbl un eed s bx caedit eas 61 Standard Conditions eeeeeeseeeeessss 75 Star
95. arts due to temperature change Normal After vacuum drying charge correct amount of refrigerant 81997 Troubleshooting SiBE26 701 Troubleshooting Based on Equipment Condition 2 10 Equipment Discharges Dust Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause m Carpet spread room m Animal s hair Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Does the trouble generate at the time of operation start again after extended period of operation Is air filter equipped Install air filter Troubleshooting Dust collected inside the indoor unit are blown out Cleaning for inside of indoor unit is necessary Dust collected inside the indoor unit are blown out Cleaning for inside of indoor unit is necessary 81998 95 Troubleshooting Based on Equipment Condition SIBE26 701 2 11 Remote Controller LCD Displays 58 Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred generates just after power The unit is checking to confirm that remote controller is normal Indication appears for short time Is the position
96. avier Operation sound Rated operation Jo sound Operation sound during night time Operation sound of low noise mode is instructed can level 1 be set with Night time low noise Operation sound of level setting eee sonido The left figure shows a case of level 3 Low noise operation by external input setting 1o Level 2 The factory setting is Level 2 B Image of Low noise operation by external input operation during Nighttime low noise setting and Required capacity prior set by remote controller Image of concurrent operation of A and B If capacity precedence is set in Capacity precedence setting the fan speed will be increased Time set with according to the load of air Time set with Operation sound Night time low noise start setting conditioning when load is heavier Night time low noise end setting Rated operation l r sona LNIighttime low noise setting m rid od faeces eee ee Tid aa TTT by remote controller Operation noise level is the ODER digi low helse a set by peration sound of fa FY i remote controller mele Low noise instructing The left figure shows a case of MU a sound of ow noise operation by external input setting to Level 3 by external input The factory setting is Level 2 PM 8 00 PM 10 00 AM 6 00 AM 8 00 DONE Sos Set with Night time low noise start setting Set with Night time low noise end setting Factory
97. bination of Low noise level Start time and End time from the table using the setting switch No 1 as needed However Start time and End time must be regarded as a guide because they are estimated based on the outside air temperature Time set with Time set with Night time low noise start setting Night time low noise end setting Operation sound Rated operation i sound Night time j i Operation sound of m 9 Operation sound during mode 1 night time low noise mode omissum Ot ssesesboasosastsacs is instructed can be set with Een sound of J Operation sound level set with Night time low noise level O i m d ______________ Night time low noise setting setting peration sound o r 1 Factory setting is Mode 2 mode 3 i I I I PM 8 00 PM 10 00 AM 6 00 AM 8 00 NEN CM Set with Night time low noise start setting Set with Night time low noise end setting Factory setting is PM 10 00 Factory setting is AM 8 00 Capacity precedence setting This setting should be selected when you desire to automatically stop the low noise operation and to switch it to normal operation in case where air conditioning load increases B image of operation when Nighttime low noise setting Capacity precedence setting are selected If capacity precedence is set in Capacity precedence setting Time set with the fan speed will be increased Time set with Night time l
98. but subject to change without notice About ISO 14001 ISO 14001 is the standard defined by the International Organization for Standardization ISO relating to environmental management systems Our group has been acknowledged by an internationally accredited compliance organisation as having an appropriate programme of environmental protection procedures and activities to meet the requirements of ISO 14001 DAIKIN INDUSTRIES LTD Head Office Umeda Center Bldg 2 4 12 Nakazaki Nishi Kita ku Osaka 530 8323 Japan Tokyo Office JR Shinagawa East Bldg 2 18 1 Konan Minato ku Tokyo 108 0075 Japan http www daikin com global_ac CAII rights reserved Printed in Singapore 05 2007 COS
99. c nane valve EV fixed open degree 2 E ECTONIE A AE valve control main Electroni i i RE K Salva Subcooling electronic subcooling expansion valve control Four way ralve way ralve haren me a OFF Solenoid valve for venting receiver gas Solenoid valve for Movement of constant Low pe protection hot gas speed compressor control Remarks 2 3 4 Heating 1 Control while Compressor is Stopped While compressor is stopped BENEENME AC EF 1 a tum Pressure equalization Indoor unit fan No instruction No instruction No instruction control before startup Indoor unit fan Electronic expansion valve main Electronic expansion valve subcooling Four way ralve lt QD 09 Solenoid valve for venting receiver Y2S Solenoid valve for After Restart standby between outdoor unit in Outdoor unit in operation 10 seconds at the earliest operation ON and outdoor unit thermostat OFF Up to 1 minute ON OFF o o 5 minutes after the compressor stops Remarks In the instruction on inverter compressor frequency 0 Hz indicates K2 magnetic contactor for inverter compressor is ON While the compressor is stopped when cooling is switched to heating the previous state is maintained For the first operation after turning ON the power it is OFF C 8 Function and Operation SIBE26 701 Outdoor Unit 2 3 5 Heating 2 Startup Control Control during Operation Com
100. check the compressor for ground and for any broken wires Furthermore even after the completion of PC board replacement check the compressor Replace the fan driver PC board x Observe the conditions of the PC board A4P 159 Diagnosis by Remote Controller 160 Power OFF Power ON Check for connector connections Remove and insert the connectors shown below Furthermore check the connectors for terminal conditions and continuity e X1M power receiving terminal lt X400A A2P e A2P X401A X10A A3P e AIP X28A lt X6A A3P e ASP X61A lt X402A A2P e A3P X1A e X403A A2P e A3P P1 P2 lt Reactor terminal L1R e ASP P3 N3 amp P1 N1 A4P YES inverter PC board caused NO Has the fan driver caused damage NO YES Turn ON the power supply Stop standb YES before the fan rotates D lt NO Stop standby YES when the compressor Starts up NO The U2 YES malfunction recurs NO SiBE26 701 If any wiring has damage replace the harness A3P Replace the inverter PC board If the PC board replaced is badly damaged the compressor is likely to get faulty To make sure recheck the compressor A4P Replace the fan driver PC board If the PCB replaced is badly damaged the fan motor is likely to get faulty To make sure recheck the compressor Recheck for the power supply If there is no problem with the power supply replace th
101. chine In order to avoid such situation this monitoring control functions to detect indoor air temperature by operating the fan at a certain interval when the fan is turned OFF while the thermostat is OFF 52 Function and Operation SIBE26 701 Indoor Unit 1 1 12 Defrost Control If heating operation is continued in low outdoor air temperatures frost forms on the surface of the outdoor heat exchanger resulting in a decrease in heating performance Accordingly when frost formation reaches a certain level it automatically switches to cooling cycle for defrosting When the frost completely melts normal heating operation resumes 1 1 13 Cold Air Prevention Control In order to prevent cold air from blowing toward customers when the indoor heat exchanger temperature is low for example at the time of heating startup and after defrosting this function selects air volume LL tap and fixes airflow to horizontal direction Function and Operation 53 Outdoor Unit 2 Outdoor Unit 2 54 1 Function List Outdoor unit SiBE26 701 Outdoor Control Unit Syembol Function Function control item detail No 1 Malfunction stop Malfunction stop 2 4 1 Restart standby 2 4 2 1 Standby Crankcase heater control 2 4 2 2 Startup control 2 4 3 1 Starting Control Room temperature thermostat control 2 4 3 2 Forced thermostat OFF by outdoor air temperature 2 4 3 3 Compressor step control 2 4 4 1 Electronic expansion valv
102. conducting brazing work make sure that the refrigerant is completely removed For mounting the electric expansion valve body conduct brazing work while cooling the valve with wet cloths or else in order to prevent the electric expansion valve from exceeding a temperature of 120 C 199 RZQ200 250C7Y1B SiBE26 701 1 6 Procedure for Removal of Pressure Switch Pressure Sensor etc Procedure AN Warning Be sure to commence the disassembling work after 10 minutes or more elapsed from all power supplies have been turned off Step Procedure Points 1 Remove the pressure Preparations switch e Remove the front panel High pressure High pressure according to the procedure for 1 Disconnect the sensor S1NPH the removal related to the connector X2A for the high pressure switch 2 Remove the brazing from the one place to remove the high pressure switch Y gt switch S1PH nav Use two spanners to remove 2 Remove the pressure A DR the low pressure sensor sensor NWez refrigerant is completely outside panel 1 Disconnectthe connector X324 for the high pressure sensor 2 With two spanners remove the high pressure sensor 3 Disconnectthe connector X314 for the low pressure sensor removed 3 Remove the four way valve A Use an iron plate or other materials to protect other Remove the electrical component box according to the procedure for removing the electrical compon
103. ct or broken disconnected Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred AN Caution Are the connections of wiring connecting indoor and outdoor units proper NO Wire properly Correct faulty wiring and wrong wire type YES Turn OFF the power supply once and then turn it ON again The indoor PC board is normal Check for external factors noise etc U4 display recurs Check HAP microcomputer normal monitor on the outdoor PC board 161 Diagnosis by Remote Controller Is HAP blinking Outdoor PC board YES UT is displayed continuously NO 162 SiBE26 701 NO Lamp is ON or OFF Turn OFF the power supply and then turn it ON inking YES ieee oe M The outdoor PC board is normal Check for external NO factors noise etc Is HAP lamp ON YES Replace the outdoor PC Outdoor PC board board whose lamp is ON NO OFF Gee page 173 Check the fan motor connector Does the resistance meet the criteria Replace the fan motor Remove the No 3 wire connecting the indoor and outdoor units and turn ON the power again Is HAP blinking YES Outdoor PC board Replace the indoor PC board The power supply system malfunction or faulty outdoor PC board Replace the indoor PC board YES It is normal Check
104. d or shorted while the unit is running Failure of the sensor itself Broken or disconnected wire Failure of indoor unit PC board Failure of connector contact AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check contact of connector NO Connect correctly Disconnect the sunction air temperature thermistor R1T from X16A on the indoor unit PC board and measure the resistance Is the thermistor normal See note YES NO Sunction air temperature sensor replacement If contact is OK replace outdoor unit PC board See LAEN OM for Thermistor temperature Resistance characteristics Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 13 CC Malfunction of Humidity Sensor System Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting LL FCQ Even if a malfunction occurs operation still continues Malfunction is detected according to the moisture output voltage detected by the moisture Sensor When the moisture sensor is disconnected or short circuited Despite the malfunction code being indicated the system continues operation B Faulty sensor B Disconnection AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred
105. dels Method of Malfunction detection is carried out by temperature detected by heat exchanger sensor Malfunction Detection Malfunction When the heat exchanger thermistor becomes disconnected or shorted while the unit is running Decision Conditions Supposed Causes Failure of the sensor itself Broken or disconnected wire Failure of electronic circuitry indoor unit PC board Failure of connector contact Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check contact of connector NO Connect correctly Disconnect the heat exchange sensor R2T from X18A on the indoor unit PC board and measure the resistance Is the thermistor normal See note YES NO Heat exchanger senser replacement If contact is OK replace indoor unit PC board See eit qM for Thermistor temperature Resistance characteristics Troubleshooting 115 Diagnosis by Remote Controller SiBE26 701 4 12 5 Malfunction of Suction Air Temperature Sensor System Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 116 mm p All indoor unit models Malfunction detection is carried out by temperature detected by suction air temperature sensor When the suction air temperature sensor s thermistor becomes disconnecte
106. door suction air temperature C Temperature set by remote controller C In heating AT Temperature set by remote controller C Indoor suction air temperature C 2 4 3 3 Thermostat OFF by Outdoor Air Temperature in Heating Operation Only In case where the outside air temperature is higher than the operating range during heating operation the outdoor unit thermostat is forcedly turned OFF to prevent the protection device from being actuated or avoid a sensor error Outdoor air temperature gt 30 C Forced thermostat OFF cancelled Forced thermostat OFF Outdoor air temperature lt 27 C 62 Function and Operation SiBE26 701 Outdoor Unit 2 4 4 Function Control 2 4 4 1 Compressor Step Control In order to control capacity the compressor operation is controlled according to the following steps lt RZQ200 250C gt i n i vm 1 RZQ250C only RZQ200C STEP 1 23 RZQ250C STEP 1 25 2 4 4 2 Electronic Expansion Valve PI Control When cooling heating PI control of electronic expansion valve is conducted to make heat exchanger outlet subcool degree SH constant in order to utilize outdoor unit heat exchanger evaporator fully SH R4T Te Te Low pressure equivalent saturation temperature C RAT Suction pipe temperature C When slight wet operation Target heat exchanger outlet subcool degree gt Heat exchanger outlet subcool degree Electronic expansion valve closes When slight overheat operat
107. door temperature thermistor system ATP J3 Malfunction of discharge pipe thermistor system J5 Malfunction of suction pipe thermistor system J6 Malfunction of heat exchange thermistor J9 Malfunction of thermister circuit at the outlet of subcooloing heat exchanger See leiet for Thermistor temperature Resistance characteristics 2 The number of each thermister and the connector Outdoor airthermistor HT xea Discharge pipe thermistor X29A Heat exchanger thermistor X30A Subcooling heat exchanger outlet thermistor 137 Diagnosis by Remote Controller SiBE26 701 4 25 JA Malfunction of High Pressure Sensor Remote JA Controller Display Applicable RZQ Models Method of Malfunction is detected from the pressure detected by the high pressure sensor Malfunction Detection Malfunction When the high pressure sensor is short circuit or open circuit Decision Conditions Supposed B Defect of high pressure sensor Causes m Connection of low pressure sensor with wrong connection B Defect of outdoor unit PC board 138 Troubleshooting SiBE26 701 Troubleshooting Troubleshooting Diagnosis by Remote Controller AN 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 X32A of outdoor unit PC board A1P NO YES Measure the voltage VH betwe
108. e temperature protection control Inverter current protection control Control by inverter fin temperature Low differential pressure Outdoor unit fan M1F Outdoor unit fan control OFF Defrost control low compression ratio protection Indoor unit fan MF Defrost control Defrost control Defrost control Co Electronic Discharge pipe expansion valve YTE Defrost control Defrost control Defrost control temperature protection main control Electronic expansion valve subcooling Solenoid valve for i n venting receiver Defrost control time Defrost control time NENNEN gas Solenoid valve for Y1S Defrost control time Low pressure protection hot gas chart control 60 Function and Operation SiBE26 701 Outdoor Unit 2 4 Function Details 2 4 1 Malfunction Stop Retry Control When the following items show abnormal values the thermostat turns OFF and malfunction is determined based on the number of retry in order to protect the compressor and other devices Number of ret Discharge pipe o Power supply Negative phase power supply 0 times No retry 2 4 2 Stand By 2 4 2 1 Restart Standby To prevent compressor from frequent ON OFF and equalize pressure in refrigerant line conducts forced thermostat OFF for 3 minutes after compressor stopping Moreover outdoor unit fan conducts residual operation for a period of time to expedite equalization and prevent refrigerant from entering in evapo
109. e A2P noise filter PC board If the malfunction recurs replace the inverter PC board A3P Recheck for the power supply If there is no problem with the power supply replace the A3P inverter PC board If the PC board replaced is badly damaged compressor is likely to get faulty To make sure recheck the compressor Check the harness and then replace it if necessary End of measures The malfunction may temporarily result from on site causes Causes Instantaneous power failure open phase noises or else Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 38 u4 Malfunction of Transmission between Indoor and Outdoor Unit Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting RZQ Li All models of indoor units Microcomputer checks if transmission between indoor and outdoor units is normal When transmission is not carried out normally for a certain amount of time Wiring indoor outdoor transmission wire is incorrect Outside cause noise etc Failure of indoor unit PC board Failure of outdoor unit PC board Failure of outdoor unit fan Power supply open phase etc Diagnosis of incorrect or broken disconnected wiring If the LEDs on the indoor unit PC board are off it indicates that the transmission wiring between indoor and outdoor units may be incorre
110. e Al Controller Display Applicable FAQ100 FCQ FBQ FHQ FUQ Models Method of Make use of the limit switch turning ON OFF according to rotation of the motor Malfunction Detection Malfunction When supplying power to the swing motor for a certain length approx 30 seconds is unable to Decision reverse the micro switch ON OFF to fix positioning Conditions Despite the malfunction code being indicated the system continues operation Defective motor Defective micro switch Defective connection of the connector Defective indoor unit PC board Supposed Causes E B E m Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Connector correctly connected to X29A 14A on the PC NO Connect correctly YES Is the relay connector of the limit switch correctly connected NO Connect correctly YES Cut the power off then supply power again Unplug X14A and cut the YES power OFF then turn on the power again When supplying power check the continuity of the limit switch Does the swing flap swing Cut the power off then supply power again When Does the turning on the power indication of continuity measure the output voltage positive negative at the connector X29A is reversed YES Replace the indoor Is it AC 200V unit PC board Replace the swing motor assy
111. e condition MODE 1 MODE 2 Factory Setting MODE 3 Push the RETURN BS3 button and set to the initial status of Setting mode 2 40 Field Setting SiBE26 701 Field Setting of Outdoor Unit 2 3 3 Detailed Explanation of Setting Mode 2 m Additional refrigerant charge operation In case where it is impossible to refill refrigerant when the compressor is stopped additional refrigerant charge operation is performed Work procedure 1 First conduct normal charging Charge refrigerant from the stop valve service port on the liquid side while the outdoor unit is stopped The stop valves on the liquid and gas sides should be kept closed completely Only when the whole amount of refrigerant cannot be charged while the outdoor unit is surely stopped perform the following operation Otherwise it will cause a problem 2 Turn ON the power of the indoor and outdoor units and fully open the gas side stop valve Be sure to completely close the liquid side stop valve 3 Set the indoor unit to fan operation 4 Perform Additional refrigerant charge operation O ON OFF 0 BLINK LED Display Operation procedure H1P H2P H3P H4P H5P H6P H7P Push and hold the MODE BS1 button in the Setting mode 1 for 5 seconds or more and set to the Setting mode 2 Push the SET BS2 button to set the LED display to Additional refrigerant charge operation Push the RETURN BS3 button Present settings are displayed Push
112. e control 2 4 4 2 Automatic operation mode control PMV control 2 4 4 3 Function Control Hot start control available only in heating operation 2 4 4 4 Protection Control Suction superheat control available only in heating operation 2 4 5 9 2 4 5 10 2 4 6 1 2 4 6 2 2 4 7 1 2 4 7 2 2 4 7 3 Anti freezing control available only in cooling operation Oil Return Defrosting Defrosting operation Operation etc Oil recovery operation Emergency operation Maintenance Simulated operation function Test operation control 1 Refer to P 61 for Detailed Explanation of Each Function Function and Operation SiBE26 701 Outdoor Unit 2 2 Flow Chart of Outdoor Unit RZQ Cooling Dry operation AN Note Refer to outdoor unit item X X X means refer to Outdoor Unit P 57 and after in detailed description of function Power supply ON Initialize electronic expansion valve Initialize microcomputer Stopping Crank case heater control refer to outdoor unit item 2 4 2 2 Remote controller operation Judgement Operation mode judgement Cooling Dry Emergency Emergency operation Cooling Dry refer to outdoor unit 2 4 7 1 Emergency operation Room thermostat control Starting control 4 way valve changeover Normal control Compressor step control refer to outdoor unit item 2 4 4 1 Inverter current protection control Electronic expansion valve PI control refer to outdoor unit
113. e fixing bracket S 3 f 4 AD D SVI gt imal Fixing bracket toward you Heat shield 5 Remove the heat I I Coss m Removel of the heat exchanger s intermediate ul j exchanger s intermediate temperature thermistor EXE temperature thermistor Cut the clamps 2 places for the heat 3 pe Mounting shield Je 4 spring iE bottom Heat shield Push the lower part of the fixing spring to pull mm igi Thermistor out the heat y exchanger s intermediate temperature thermistor Heat exchanger s distribution pipe thermistor R4T Removal Procedure 203 RZQ200 250C7Y1B SiBE26 701 204 Removal Procedure SiBE26 701 Symbols Filter Cleaning Displayed or Not Displayed 27 A Dx 104 TG 105 PG usanne 107 109 110 nv dash meee 112 Abnormal High Pressure Level 120 Abnormal High Pressure Switch 132 Abnormal Outdoor Fan Motor Signal 134 AF ocupan een our epa ve duE xin utu ante denda 113 After Equipment Shuts Down It cannot be Restarted TON UN FANN isis n 89 Air Flow Adjustment Ceiling Height 30 Air Flow Direction Setting 30 Air Flow Rate Switching at Discharge Grille for Field Air Flow Rate Switching 31 All JT IGDteness 16SE vasene
114. e protection High pressure protection control control Discharge pipe Discharge pipe M1C temperature protection Fmin Hot oil return temperature protection Compressor INV 124Hz control Oil return control Inverter current implementation step Inverter current protection control protection control Control by inverter fin Control by inverter fin temperature temperature Heating pump down Control before the Indoor unit fan MF compressor stops indoor unit fan EV fixed open degree 2 Electronic expansion valve fixed open degree control Electronic expansion valve subcooling vas ON Solenoid valve NECEM venting receiver gas Solenoid valve for Movement of constant Mie NR o Low pressure protection hot gas speed compressor c P control Remarks Electronic Discharge pipe temperature protection control Discharge pipe temperature protection control Electronic expansion valve control expansion valve main Function and Operation 59 Outdoor Unit SiBE26 701 2 3 7 Heating 4 Defrosting Operation Compressor in operation Details of defrost control Defrost completion judgment control Before defrosting Dari i 2 minutes During defrosting After defrosting mr Low pressure protection control High pressure protection control High pressure protection control cooling Compressor Defrost control Defrost control Defrost control Discharge pip
115. ecreases Electronic ius to Wet protection control expansion valve Minimum opening degree Suction Suction superheat degree is approx 0 deg superheat degree Discharge superheat degree ee Degree of excessive refrigerant charging Adequate level nn Excessive charge 182 Troubleshooting SiBE26 701 Check No 10 Diagnosis by Remote Controller Check for factors causing wet operation Referring to the Fault Tree Analysis FTA shown below identify the faulty points Wet operation Troubleshooting Refrigerant dwelling Faulty crankcase heater Frequent starts and stops of the compressor Excessive refrigerant charging Refer to Kerze qe M Faulty superheat degree control Decreased T Faulty electronic Faulty valve coil Are the coil resistance ma and insulation normal expansion Valve Faulty valve body Faulty suction pipe thermistor lt Is the connector properly connected Faulty control PC board Are the thermistor resistance characteristics normal lt Is the pressure value checked with the Service Checker corresponding to the measurement of the sensor Pee lt Is the heat exchanger clogged Faulty fan motor lt Can the fan motor be rotated with hands Are the motor coil resistance and insulation normal Faulty low pressure sensor lt Are the voltage characteristics normal Faulty control Decreased fan airflow rate Faulty control PC board includin
116. ection is required Consult your installer 18 SET TEMPERATURE DISPLAY ag This indicates the current set temperature of the installation not shown in LIMIT operation or in FAN or DRY mode 19 SETTING SETTING Not used for service purposes only 20 AIR FLOW DIRECTION ICON x This icon indicates the air flow direction only for installations with motorised air flow flaps 21 NOT AVAILABLE ge war IS displayed whenever a non installed option is addressed or a function is not available 22 FAN SPEED ICON 222 This icon indicates the set fan speed 23 DEFROST HOTSTART MODE ICON This icon indicates that the defrost hotstart mode is active 24 AIR FILTER CLEANING TIME ICON This icon indicates the air filter must be cleaned Refer to the manual of the indoor unit 25 ELEMENT CLEANING TIME ICON xj This icon indicates the element must be cleaned HRV only 26 VENTILATION MODE BUTTON The ventilation mode button operates the HRV refer to the manual for more details 27 VENTILATION AMOUNT BUTTON amp This button sets the ventilation amount refer to the manual for more details 28 INSPECTION TEST OPERATION BUTTON amp Not used for service purposes only 29 PROGRAMMING BUTTON amp This button is a multi purpose button Depending on the previous manipulations of the user the programming button can have various functions 30 SCHEDULE TIMER BUTTON og This button enables or disables the schedule timer 31 TIME ADJUST BUT
117. ed Check if the connector for the low pressure sensor X31A is correctly connected to the outdoor unit PC board A1P Is it connected Connect correctly correctly Measure the voltage V between the pins 2 and 3 of the above connector 1 Is the relation between the pressure and the voltage normal 2 YES Replace outdoor unit PC board A1P Replace the low pressure sensor V2808 1 Voltage measurement point Outdoor unit PC board A1P 5V O Connector 4 Red GND Microcomputer A D input Low pressure sensor Measure voltage here 2 Pressure Sensor pressure voltage characteristics table Detected pressure PL MPa 0 5 l l i i 0 5 0 05 1 15 2 25 3 35 4 Vcc Output voltage V PL 0 57V 0 28 PL Detected pressure MPa V Output Voltage V Troubleshooting 141 Diagnosis by Remote Controller SiBE26 701 4 27 L Faulty Outdoor Inverter PC board Remote Li Controller Display Applicable RZQ Models Method of B Detect malfunctions by current value during waveform output before compressor startup Malfunction B Detect malfunctions by current sensor value during synchronized operation at the time of Detection startup Malfunction m Incase of overcurrent OCP during waveform output Decision B When the current sensor malfunctions during synchronized operation Conditions B Incase of IPM malfunction Supposed
118. ed operation is carried out while the malfunction is displayed on the remote controller In case of a fin thermistor malfunction error display appears only when the INSPECTION TEST Operation button on the remote controller is pushed B Outside air thermistor Outside heat exchanger thermistor Fin thermistor In case of a malfunction in the low pressure sensor high pressure sensor discharge pipe thermistor for inverter thermistor for subcooling heat exchanger or suction pipe thermistor a malfunction stop is made and no simulated operation is performed HH 2 4 7 3 Test Operation Control B Cooling operation in the Test operation mode is always carried out for 3 minutes in the first operation after installation B When the Test operation button on the remote controller or the outside PC board is turned ON forced thermostat ON operation is performed Cooling heating Second or later operation after installation 0 B Remote controller Test operation ON Outdoor PC board Test operation BS4 ON Cooling operation in Normal cooling Cooling i l amp First ti EE test operation mode operation after 3 irst operation after installation approx 3 minutes Tee Heat Heating operation in Normal cooling amp ini lati test operation mode operation after 3 irst operation after installation approx 3 minutes Minties Cooling heating _ operation approx 30 Normal cooling minutes wit
119. eed DISPLAY x5 TEST INSPECTION TEST OPERATION 7 When the INSPECTION TEST OPER ATION BUTTON is pressed the display shows the system mode is in TIMER INDICATOR LAMP Green ON OFF BUTTON This lamp stays lit while the timer is set Press the button and the system will AIR FILTER CLEANING TIME start Press the button again and the INDICATOR LAMP Red i 22 dg ee Lights up when it is time to clean the air FAN SPEED CONTROL BUTTON filter Press this button to select the fan DEFROST LAMP Orange OPERATING INDICATOR LAMP Red This lamp stays lit while the air conditioner runs It flashes when the unit is in trouble speed HIGH or LOW of your choice Lights up when the defrosting opera TEMPERATURE SETTING BUTTON Use this button for SETTING TEMPER ATURE Operates with the front cover of the remote controller closed PROGRAMMING TIMER BUTTON Use this button for programming START and or STOP time Operates with the front cover of the remote con troller opened TIMER MODE START STOP BUTTON C 3PA63363 25Z C 3PA63363 21T C 3PA63363 8L tion has started For straight cooling type this lamp does not turn on Remote Controller 17 Method of Operating Remote Controller SIBE26 701 3 Method of Operating Remote Controller 3 1 The INSPECTION TEST Button The following modes can be selected by using the Inspection Test Operation button on the remote control Depress Inspec
120. en the pins 1 and 3 of the above connector 1 YES Is the relationship between high pressure and VH normal 2 YES NO 1 Voltage measurement point Outdoor unit PC board A1P GND Microcomputer A D input 2 Measure DC voltage here Detected pressure PH MPa O 2 _e _ Connector Red 2 Pressure Sensor pressure voltage characteristics table Connect the high pressure sensor and turn on again Replace outdoor unit PC board A1P Replace the high pressure sensor Red Black White PH 1 38V 0 69 PH Detected pressure MPa V Output Voltage V en Q D c D Y 2 77 o D pum Q E gt I V2806 V2807 139 Diagnosis by Remote Controller SiBE26 701 4 26 JC Malfunction of Low Pressure Sensor Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 140 JL RZQ Malfunction is detected from pressure detected by low pressure sensor When the low pressure sensor is short circuit or open circuit B Defect of low pressure sensor B Connection of high pressure sensor with wrong connection B Defect of outdoor unit PC board Troubleshooting SiBE26 701 Diagnosis by Remote Controller Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurr
121. ent assembly The pressure sensor can be removed without draining the Low pressure refrigerant A check valve is sensor S1NPL i provided Brazing Before conducting brazing 3 places Brazing work make sure that the 1 Disconnectthe connector Four way valve y wirina f raet g from the direct impact VEN coi me Io os of the flame of the gas i Sj welding machine 2 Unscrew the screw to gt For mounting the four wary Tee A N valve body conduct brazing i A 7 work while cooling the valve d with wet cloths or else in 3 Remove brazing from the order to prevent the four four BR a then 7 wary valve from exceeding a d de our Way D temperature of 120 C 200 Removal Procedure SiBE26 701 RZQ200 250C7Y1B 1 7 Procedure for Removal of Compressor Procedure N Warning Be sure to commence the disassembling work after 10 minutes or more elapsed from all power supplies have been turned off Ez Procedure os 1 Remove the soundproof Preparations Cover e Remove the front panel Remove the hook and Compressor according to the procedure loop fastener from the DF Y f ante for the removal related to the three places to remove KG mal GT outside panel the compressor head N a i DA bs Wi cover Hook and C M Do Remove the electrical 1 loop fastener component box according to loop fastener from the the electrical component three places to pull out Y assembly the compressor E ro
122. epair work A charged capacitor can cause an electrical shock Do not start or stop the air conditioner operation 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 Introduction SIBE26 701 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 1 1 2 Cautions Regarding Products after Repair 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 inappropr
123. equency non operating type designed for inverters If the leakage breaker is not designed for inverters high frequency can result in a malfunction Does not result in malfunction stop and the unit will automatically reset after standby for 3 minutes The fin temperature increase can be checked by service mode or LED on the PC board Maintenance and Repair Manual Instantaneo us power failure detection Fan residual operation Fan motor replacement Pump down operation Pay attention to damaged sealing materials on the top panel Insufficient voltage and instantaneous power failure resulted in an operation shutdown due to U2 error supply voltage abnormality The fan operates for about 30 seconds to cool the inverter after the compressor stops operating If the fin temperature is high the fan will keep operating until the fin temperature lowers Before replacing the fan motor make sure that the fan is not operating and disconnect the fan motor connector from the PC board If the fan is operating the fan motor generates power to supply voltage to the PC board circuit Further make sure that the voltage between the capacitor terminals of the main circuit is 50 V or less before replacing the fan motor To prevent the PC board from damage touch the grounding terminal of the switch box by hands without fail to relieve static electricity from yourself right before detaching the connector If the co
124. eration 1 Because high pressure rises due to excessive charging overload control is carried out and capacity tends to run short 2 Considering pressure load compressor discharge pipe temperature is low 3 Subcooled degree of condensate liquid becomes large Therefore temperature of blown air passing through subcooled part decreases in heating operation Cooling i As compressor High pressure frequency decreases 1 l l l l l l l I low pressure rises l l l l Low pressure Compressor frequency decreases due to high pressure protection control l Maximum frequency Compressor frequency I Compressor frequency Minimum frequency increases in order to maintain low pressure Electronic EE ee expansion valve Electronic expansion valve opening degree decreases due to wet protection control 3 Minimum opening degree Suction Suction superheat degree is approx 0 deg superheat degree Discharge superheat degree MM Degree of excessive refrigerant charging Adequate level Excessive charge MEN a l High pressure Low pressure l l I I I l I I l I l As compressor l l l frequency decreases Compressor low pressure rises l l l frequency Fn i Minimum frequency Compressor frequency I decreases in order to maintain high pressure l AC n valve opening degree d
125. eshooting SiBE26 701 Troubleshooting Troubleshooting Diagnosis by Remote Controller AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the installation conditions Is the stop valve NO open 1 for the low pressure sensor correctly connected to the outdoor unit PC board NO YES Measure the voltage DC between the pins 2 and 3 of the connector refer to 2 Converted pressure based on the measured voltage normal refer to lt 3 NO YES eie P 175 Is low pressure abnormally low NO YES 1 Connector code X31A 2 Method of voltage measurement Outdoor unit PC board A1P 5V Connector Black 9 GND BUT Microcomputer A D input ji a Measure voltage here Red White wx o e c o o 0j 3 Q E Keb wx a o Detected pressure PL MPa 0 5 Open the stop valve Connect correctry Replace the low pressure sensor Correct the failure Replace the outdoor unit PC board A1P Pressure voltage characteristic of the sensor 1 15 2 25 3 35 4 Vcc Output voltage V PL 0 57V 0 28 PL detected pressure Mpa V output voltage V 123 Diagnosis by Remote Controller SiBE26 701 4 18 5 Inverter Compressor Motor Lock Remote Controller Display
126. et temperature Is the power power switch switch or replace fuse blown NO Is the heating YES Normal Switch turned on at outdoor Thermostat OFF by temperature gt 27 C outdoor temperature NO Is rated voltage YE applied at gt Replace the the compressor compressor terminals NO Is rated voltage YES output from the magnetic switch or power transistor Replace the magnetic switch or power transistor Is rated voltage output from the PG board Replace the PC board NO Check the thermistor Air sensor I Outdoor unit Magnetic switch or Indoor unit board Power transistor PC board COMP D Compressor Output from Output from relay or magnetic switch or microcomputer UVW circuit of power transistor 82576 86 Troubleshooting SiBE26 701 Troubleshooting Based on Equipment Condition 2 4 Cooling Heating Operation Starts but Stops Immediately Applicable Model Error Detection Method Error Generating Condition Possible Cause Troubleshooting All models of SkyAir series Excess charge of refrigerant Air intrudes into refrigerant system Faulty pressure switch Faulty magnetic switch for outdoor unit fan motor Faulty aux relay for outdoor unit fan motor Soiled heat exchanger of outdoor unit There is an interfering item in air flow of outdoor unit Malfunction of outdoor unit fan Soiled air filter of indoor u
127. f Fan Motor enm 195 1 3 Procedure for Removal of Electrical Component Assembly 196 1 4 Procedure for Removal of PC Board eee 197 1 5 Procedure for Removal of Electronic Expansion Valve and Sol nold NaNe Lu 199 1 6 Procedure for Removal of Pressure Switch Pressure Sensor elo aus Gets 200 1 7 Procedure for Removal of Compressor eese 201 1 8 Procedure for Removal of Thermistor eee 202 193 RZQ200 250C7Y1B SiBE26 701 1 RZQ200 250C7Y1B 1 1 Procedure for Removal Related to Outside Panel Procedure AN Warning Be sure to commence the disassembling work after 10 minutes or more elapsed from all power supplies have been turned off Step Procedure Points 1 Remove the top panel B It is possible to remove the etc top panel assembly as a 1 Unscrew the four whole without dismounting screws and pull up the f the discharge grill from the discharge grill s Discharge top panel grill B When using a stepladder place it in a secure manner for safe operation 2 Unscrewthe ten screws Top panel and pull up the top panel L b upper 2 Remove the front panel eU upper m E v e NUN k ep p M 1 Unscrew the five fixing Front panel we j screws and pull out the middle gt front panel upper 22 M rd ON bd AA c n i wu Front panel UN Re K bottom c NA
128. f low pressure sensor system Check if the stop valve open E5 E7 E9 F3 H3 Abnormality of low pressure outdoor unit Compressor motor lock malfunction Compressor motor lock on incorrect wiring etc Outdoor fan motor lock or outdoor fan instantaneous overcurrent malfunction Malfunction of electronic expansion valve outdoor unit Discharge pipe temperature malfunction outdoor unit HR Failure of high pressure switch outdoor unit Malfunction of outdoor fan motor signal H 9 Malfunction of outdoor airtemperature thermistor system outdoor unit J3 Malfunction of discharge pipe temperature thermistor system outdoor unit Suction pipe thermistor malfunction Failure of suction pipe thermister system J6 Malfunction of heat exchanger temperature thermistor system in cooling operation outdoor unit JA Maffunction of High pressure sensor mm J8 Malfunction of liquid pipe thermistor S Malfunction of suction pressure sensor Failure of suction pressure sensor system L1 Outdoor PG board malfunction Radiation fin temperature rise Malfunction of inverter cooling L5 Instantaneous over current Possibility of compressor motor grounding or shortage of motor winding L8 Electronic overload Possibility of compressor overload open circuit in compressor motor LC Stall prevention faulty start up Possibility of compressor seizing Malfunction of transmission system between control PC board and inverter PC board
129. g capacity setting Reference values for superheat degree to be used in the judgment of wet operation 1 Suction pipe superheat degree 4 C or more 2 Discharge pipe superheat degree 5 C or less 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 183 Diagnosis by Remote Controller SiBE26 701 184 Troubleshooting SiBE26 701 Appendix Part 7 Appendix 1 Items Improved from the Existing Models 186 2 PPM DETS anan 187 PN 187 22 Messe 188 CMM depu 189 2 4 Double TWN sri tetto oa eo aute euius oa naut daas e ev veces orae 190 3 WIDE DEG S 191 3 1 Outdoor Unit 185 Items Improved from the Existing Models SIBE26 701 1 Items Improved from the Existing Models RZQ200 250C7Y1B 1 c 9 REL Th ae ED AJ I Higher rotation rate of the inverter compressor max rps 1 SFT A
130. g time up down button Table UNIT No CODE Me SETTING 81957 20 Remote Controller SiBE26 701 Method of Operating Remote Controller 3 3 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 Push the button Inspection test operation Unit 0 Malfunction code LO Inspection 07 1 Capacity code F Indoor unit system code J Indoor unit type code J Progression code Inspection mode Inspection test operation Push the button Indoor unit system code Display System classification Standard indoor unit Indoor unit model code display Indoor unit type code Inspection test push the button Display Type Model operation C Double flow FCQ F Multi flow FFQ J Built In FBQ AA P High static pressure FDQ H Ceiling suspended FHQ Outdoor unit model code display 5 Ceiling suspended cassette FUQ A Wall mounted FAQ Inspection test Push the button operation Test operation Outdoor model code Display Model 2AA RZQ C Test operation mode Inspection test operation Push the button V2775 Remote Controller 21 Method of Operating Remote Controller SIBE26 701 3 4 Remote Controller Service Mode How to Enter the The operation of the Inspectio
131. ger temperature 34 C 10 5 minutes elapsed after compressor startup OR OR amp If the indoor unit is not equipped with an M tap use the L tap again OR Indoor unit fan Preset air volume 2 4 4 5 Low Noise Control A In case of setting by remote controller nighttime automatic low noise setting Using remote control setting the current time is estimated based on the change in outdoor air temperature to perform low noise operation by automatically limiting the outdoor unit fan rotation speed and compressor operation frequency during nighttime 22 00 8 00 The nighttime hours should be regarded as a guide B In case of contact input manual low noise setting Low noise operation is performed by limiting the outdoor unit fan rotation speed and compressor operation frequency during a short circuit between T1 and T2 of the terminal block X1M on the outdoor PC board C In case of required capacity prior When required capacity prior is set using the remote controller if air conditioning load increases in the case of A or B above low noise operation is suspended and normal operation is performed When required capacity prior is not set low noise operation continues even if air conditioning load increases 2 4 4 6 Outdoor Unit Fan Control For continuing efficient operation when high pressure elevates during cooling or low pressure decreases during heating fan air volume is increased lt
132. h forced heating operation thermostat ON B Inthe test operation mode instant malfunction confirmation is conducted to detect a failure in field installation such as a stop valve is not open When malfunction code UO is displayed check the field installation conditions such as a stop valve is not open BM Normal operation starts automatically 3 minutes after the start of test operation If the test operation mode is set with the remote controller cooling operation continues in the test operation mode If the test operation mode is cancelled after an elapse of 3 minutes from the start of test operation it is switched to normal operation This control is implemented again in the first operation after refrigerant recovery by the pump down switch 70 Function and Operation SIBE26 701 List of Electrical and Functional Parts 3 List of Electrical and Functional Parts 3 1 Outdoor Unit RZQ200 250C7Y1B Item Name Symbol RZQ200C7Y1B RZQ250C7Y1B THGCVOKRGT Inverter OC protection M1C device JER Output 0 75kW device Electronic expansion valve Subcool Fully closed 0 pulse Fully open 480 pulse High pressure i For M1C S1PH OFF 4 0MPa ON 3 0MPa Fusible plug d 70 75 C Discharge gas temperature protection Disharge gas thermistor OFF 135 C Inverter fin temperature protection Radiator fin thermistor OFF 87 C Compressor PC board c 2 o c 2 LL protection Temperature
133. h the inspection test operation button for a minimum of 4 seconds 3 Select the mode No Set the desired mode No with the up down temperature setting button 4 Select the unit No Select the indoor unit No set with the TIME MODE START STOP button 5 Select the necessary settings for each mode Modes 40 or 41 6 Select the desired malfunction hysteresis of sensor data display with or button In case of wireless remote controller use A or V button Each data displays Refer below display 7 Return to the normal operation mode Press the inspection test operation button one time Table Content and Operation Method Example of Remote Controller Display Malfunction You can change the history Hysteresis with the programming time up Past malfunction down button UE UNIT No JE JE MS CODE 2 74 SETTING Malfunction 1 Newest hysteresis 3 Oldest 00 displayed for 4 and subsequent Sensor Data Select the display sensor with Display the programming time up Sensor type down button Temperature Display sensor BB Remote control sensor 07 Suction G2 Heat exchange UNIT No Remote Controller 19 Method of Operating Remote Controller SIBE26 701 3 2 2 Service Mode Setting Procedure MODE NO FIELD SET MODE 5 5 UN NO HN ENO FIRST CODE NO FIELD eal MopE ba Fr SECOND CODE NO FIRST CODE NO 1 Enter the field set mode Continue to p
134. he inverter in order to maintain low pressure which results in a decrease in frequency 3 Because of 1 and 2 above the compressor frequency decreases despite a large difference large load between temperature set by the remote controller and indoor suction temperature resulting that cooling capacity becomes unavailable 4 If gas shortage worsens the electronic expansion valve remains fully open and suction superheat degree further increases In addition because the compressor frequency drops to the level of the lowest frequency 52 Hz and the refrigerant flow rate decrease low pressure cannot be maintained Gas shortage warning Abnormal gas shortage High pressure Pressure sensor Actual high pressure As compressor frequency decreases high pressure decreases Maintains a certain level i Low pressure of low pressure Pressure sensor When the refrigerant flow rate decrease it is impossible to maintain a low pressure As the electronic expansion valve opening degree reaches the maximum suction superheat degree increases Suction superheat degree Compressor frequency the inverter in order to maintain a low pressure which resulting in a decrease in frequency In response to decreased evaporator capacity caused by gas shortage capacity is controlled in i Reaches the lowest frequency The maximum opening degree of the electronic expansion valve 480 pulses
135. hen an excessive current flows in the power transistor 32 3A Decision Conditions Supposed B Faulty compressor coil disconnection poor insulation Causes B Compressor startup malfunction mechanical lock B Faulty outdoor inverter PC board B instantaneous power failure B lightning surge Troubleshooting 145 Diagnosis by Remote Controller Troubleshooting 146 AN Caution Power OFF Power OFF Is the stop valve NO open YES Isthe lead wire of the compressor normal NO Are the wiring and wiring connection to the compressor normal NO YES The insulation resistance is low i e not more than 100 KQ YES NO The compressor coil is shorted or broken YES NO Check 7 Is contiuity of the power transistor normal Restart the compressor and then check whether or not the mulfunction recurs Replace the PC board A3P the compressor and then check whether or not the mulfunctio recurs SiBE26 701 Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Open the stop valve Replace the lead wire of the compressor Correct the wiring and wiring connection Replace the inverter compressor M1C Replace the inverter compressor M1C Replace the outdoor PC board ASP Continues operation There may
136. higher than Continue unit operation set value in cooling operation Is white fog coming out from the unit Normal It may be necessary to remove the source of humid Remove the source of humid condition condition Is the heat YES exchanger of indoor unit soiled NO Cleaning of heat exchanger is necessary Is the site dusty or with dense oil mist YES a n inisisinod De Remove the source of oil mist or dust YES Possible causes as follows Clogged air filter Cleaning of air filter Malfunction of fan motor Check fan motor Refer error code A6 Is the airflow rate too small Did the trouble generate on switching to heating mode Normal after complete of defrosting Fog is generated due to s during heating defrosting operation S1996 Troubleshooting 93 Troubleshooting Based on Equipment Condition SiBE26 701 2 9 Equipment Produces Loud Noise or Shakes Applicable Model Error Detection Method Error Generating Condition Possible Cause Troubleshooting 94 All models of SkyAir series Faulty installation Excess charge of refrigerant Air intrudes into refrigerant system AN Caution Does the noise generate with vibration of whole ceilings and or parts damage may be occurred Installation work side YES the noise generate YES with vibration of unit mounting section Cont
137. iagnosis by Remote Controller Malfunction of Indoor Unit Fan Motor UN M UN bt bt FCQ FAQ Detection of abnormal fan speed by signal from the fan motor When fan speed does not increase Disconnection short circuit or disengagement of connector in fan motor harness Faulty fan motor disconnection poor insulation Abnormal signal from fan motor faulty circuit Faulty Indoor unit PC board Instantaneous fluctuation of power supply voltage Fan motor lock Caused by motor or other external factors Fan does not turn due to a tangle of foreign matters The connector between the high voltage PC board A1P and the low voltage PC board A2P is disconnected 107 Diagnosis by Remote Controller SiBE26 701 Troubleshooting 108 AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn off the power supply Wait for 10min Is there any foreign matter around the fan YES Remove the foreign matter NO harness from the an motor correctly connected to X20A connector on Bs Connect correctly transfer connector between the fan motor and X20A disconnected can the fan be easily turned by hands NO Replace the fan motor YES Check No 1 Check for the fan motor connector Is the resistance between each pins above judgment standard Replace the fan motor Replace the indoor unit P
138. iate 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 For integral units installation frame only Incorrect use of the installation frame and improper installation can cause the equipment to fall resulting in injury Be sure to install the product securely in the installation frame mounted ona For integral units window frame only If the unit is not securely mounted it can fall and cause injury 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 vi SiBE26 701 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 Improper connections can cause excessive heat generation or fire When con
139. icates that the malfunction code is confirmed Continuous beep No abnormality Press the MODE selector button The left 0 upper digit indication of the malfunction code flashes 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 The upper digit of the code changes as shown below when the UP and DOWN buttons are pressed c Of tol oo 2 omomBem o J L b mege pe de a P dl fel IL fee He ae 4 c UP button DOWN button S2003 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 Press the MODE selector button The right 0 lower digit indication of the malfunction code flashes 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 The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed J PEP a Sa Pn Pm Pm AR PP Pl POT Pa a c UP button DOWN button S2002 Troubleshooting SiBE26 701 Diagnosis by Remote Controller UNIT No n RESERVE CANCEL Normal status Enters inspection mode from normal status when the INSPECTION
140. in level of high pressure em Indoor suction temperature Th1 mim a ee ee 1 Low pressure m s Middle of heat exchanger Tm a A decrease in evaporator capacity frequently 4 puts the system in defrost operation 4 F I m a m _ When frequency drops to the lowest a decrease in low Suction superheat degree increases piessure Decomesuaigel Drooping control by suction superheat degree Prevention of oil to heat exchanger from being retained Suction superheat degree Compressor frequency In response to decreased evaporator capacity caused by gas shortage capacity is controlled in Reaches the lowest frequency the inverter in order to maintain high pressure i which resulting in a rise in frequency The maximum opening degree of the electronic expansion valve 480 pulses Electronic expansion valve Electronic expansion valve control by avoiding superheat operation Degree of inadequate refrigerant Adequate level Inadequate Troubleshooting 181 Diagnosis by Remote Controller SiBE26 701 Check No 9 Check for excessive refrigerant charging As criteria for judging whether refrigerant is excessively charged or not refer to the following operating conditions lt Diagnosis of excessive refrigerant charging gt In cooling op
141. in operation sound precedence mode OFF setting low noise Set to low noise level in the Setting mode 2 as needed DS1 4 Setting of high Makes settings when an outlet duct is mounted and OFF Factory setting Static pressure operated in the high static pressure mode ON DS2 1 ON Do not change the factory setting OFF Factory setting Factory OFF Factory setting p 9N Setting of Constantly controls to maintain low power OFF Factory setting normal demand consumption operation Do not change the factory setting OFF Factory setting OFF Factory setting setting Makes this setting when a spare PCB is Capacity settin ON OFF Facto seting TT Field Setting SiBE26 701 Field Setting of Outdoor Unit 2 3 2 Setting Mode 1 2 m Setting by BS buttons With Setting mode 1 and Setting mode 2 various settings and data can be checked B Procedure for Changing Setting Mode Using the MODE button the modes can be changed as follows MODE Push and hold the BS1 MODE button for 5 seconds Setting mode 1 o OFF Setting mode 2 C H1P Push the BS1 MODE button one time When the MODE button BS1 is pushed once while H1P blinks it is set to the Setting mode 1 Setting mode 1 1 TEST BS4 2 FORCED DEF BS5 3 PUMP DOWN BS5 Setting mode 2 1 Additional refrigerant charge operation Used when additional refrigerant cannot be Field Setting charged while the compressor is sto
142. ing Despite the malfunction code being indicated the system continues operation B Failure of sensor itself B Broken wire AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn the power supply off once and then x1 back on Is Cu displayed on the remote controller Heplace remote controller Could be outside cause noise etc other than malfunction 1 To delete this press Start Stop button for 5 seconds in the check mode of the remote controller Troubleshooting SiBE26 701 4 15 E Fa Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting Diagnosis by Remote Controller ilure of Outdoor Unit PC Board Na 1 i RZQ Microcomputer checks whether E2PROM is normal E PROM When E PROM malfunctions when turning the power supply on B Faulty outdoor unit PC board A1P AN 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 YES It is considered to be caused by external factors noise etc other than failure Does it return normally NO Turn OFF the power supply remove the fan motor connector and then turn ON the power supply again
143. inuous Slight noise of shoo during cooling or defrosting NO a NO Is the piping secured Power supply side YES shoo generates just after operation start or stop or defrosting start or stop NO Does the fan contact with other parts NO YES Sound of shoo generates during cooling or after operation Does the pipe contact with casing Creak during heatingand after operation stop Is the noise flushing sound from pressure reducing valve or capillary tube NO Excess charge of refrigerant Air intrudes into refrigerant system Flushing noise due to refrigerant shortage Sound of shoo Flushing noise due to refrigerant shortage Sound of shoo Be sure to turn off power switch before connect or disconnect connector Correction of installation Reinforcement for ceilings or walls Insert shock absorber in mounting section or strengthen the mounting section Normal The sound is flushing noise of gas refrigerant inside air conditioning unit Insert cushion materials to the pipe support such as saddle Normal The noise is a sound generated at the time of gas refrigerant flow change or stop Disassemble and remove parts contact Normal Operation sound of draining device Correct piping manually or attach a dead weight to pipe Normal Creak generates by shrinkage of resin p
144. ion Target heat exchanger outlet subcool degree lt Heat exchanger outlet subcool degree Electronic expansion valve opens B The value of target heat exchanger outlet subcool degree varies depending on change of discharge pipe superheat degree of inverter compressor etc 2 4 4 3 Automatic Operation Mode Control PMV Control When selecting Automatic Operation Mode with the remote controller conducts the most comfortable operation in which you do not feel too cool or too hot e Outdoor air temperature e Indoor air temperature Remote controller set temperature Calculates and controls the optimum indoor temperature Function and Operation 63 Outdoor Unit SIBE26 701 2 4 4 4 Hot Start Control in Heating Operation Only The indoor unit fan is controlled to prevent cold air flow and secure a starting capacity when starting up heating operation or completing defrosting Indoor unit fan OFF Heating operation ON by remote controller amp Indoor heat exchanger temperature gt 34 C High pressure gt 2 96MPa 5 minutes elapsed OR Indoor unit fan LL tap 1 minute elapsed with LL tap Indoor heat exchanger temperature 34 C 6 5 minutes elapsed after compressor startup Indoor unit fan L tap 1 minute elapsed with L tap Indoor heat exchanger temperature 34 C 8 5 minutes elapsed after compressor startup Indoor unit fan M tap amp 1 minute elapsed with M tap Indoor heat exchan
145. ise etc Troubleshooting SiBE26 701 Troubleshooting Diagnosis by Remote Controller AN 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 MES NO Electronic expansion valve is connected to outdoor unit PC board A1P NO YES Coil resistance of electronic expansion valve normal 1350 165 41 YES NO Make measurement of resistance between the connector pins and then make sure the resistance falls in the range of 135 1659 Orange 1 Red 2 Yellow 3 Black 4 5 E EX XXX COM Gray 6 Troubleshooting External factor other than malfunction for example noise etc Connect correctly Replace the electronic expansion valve Replace outdoor unit PC board A1P V3067 Measuring points 40 500 V3067 129 Diagnosis by Remote Controller SiBE26 701 4 21 F3 Malfunction of Discharge Pipe Temperature Remote F3 Controller Display Applicable RZQ Models Method of Abnormality is detected according to the temperature detected by the discharge pipe Malfunction temperature sensor Detection Malfunction m When the discharge pipe temperature rises to an abnormally high level 115 C Decision B When the discharge pipe temperature rises suddenly Conditions m After operation start the
146. it Troubleshooting 103 Diagnosis by Remote Controller SiBE26 701 4 3 A Failure of Indoor Unit PC Board Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 104 un I 1 All indoor unit models Check data from E2PROM When data could not be correctly received from the EPROM E PROM Type of nonvolatile memory Maintains memory contents even when the power supply is turned off B Failure of PC board AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn the power supply off once and then back on YES Could be outside cause noise etc other than malfunction Indoor unit PC board replacement Normal reset Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 4 Az Malfunction of Drain Water Level System Float Type Remote H3 Controller Display Applicable FCQ FBQ FDQ FFQ FHQ FUQ 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 Failure of drain pump Causes B Improper drain piping work B Drain piping clogging B Failure of float switch B Failure of indoor unit PC board B Failure of short circuit connector Troubleshooting 105 Diagnosis by Remote Cont
147. l values is summarized in the table below Conditioner s Measured from 15 20 minutes or more after operation starts Operation Status and Pressure Running Current When Cooling Air Conditioner Status Low Pressure High Pressure Running Current Air Filter Fouling Short Circuit of Indoor Unit Inlet Lower Lower Lower Outlet Air Short Circuit of Outdoor Unit Inlet Higher Higher Higher Outlet Air Water Mixed in Refrigeran Outdoor Unit Fin Fouling Lack of Refrigerant Gas Unsatisfactory Compression 3 Higher When Heating Air Conditioner Status High Pressure Running Current Air Filter Fouling Short Circuit of Indoor Unit Inlet Higher Higher Higher Outlet Air Short Circuit of Outdoor Unit Inlet Lower Lower Lower Outlet Air Outdoor Unit Fin Fouling Water Mixed in Refrigerant Lack of Reigerant Gas Unsatisfactory Compression 3 Higher d Notes 1 76 1 Water in the refrigerant freezes inside the capillary tube or expansion valve and is basically the same phenomenon as pump down 2 Dirt in the refrigerant clogs filters inside the piping and is basically the same phenomenon as pump down 9 Pressure differential between high and low pressure becomes slight Troubleshooting SiBE26 701 Maintenance Inspections hems Key point hems Key points Power Inverter supply PC section and board PC board replacement Control Electric discharge of capacitor Residual electric cha
148. lfunction of Thermistor System 136 4 25 JA Malfunction of High Pressure Sensor seseeeesses 138 4 26 JC Malfunction of Low Pressure Sensor cccsecceeeeeeeeeeeeeeeeseeeeenees 140 4 27 L Faulty Outdoor Inverter PC board rrrnnrvrnnnvnnnnrvvnnnnnnnnennnnrennanennnn 142 4 28 LY Radiation Fin Temperature Increased 143 4 29 L5 Momentary Overcurrent of Inverter Compressor 145 4 30 L8 Inverter Compressor Overcurrent cccccccsseeceeeceseeseeeseeeesaeeeees 147 4 31 L Compressor Inverter Start up Error rarrrnnnnrnnnnrrnnnrennnnennnnnennnnnennn 149 4 32 LC Malfunction of Transmission between Inverter and Ger D 1 La eerie ep etude ido EE Dd ende ie iicqis 151 4 33 PP Inverter Over Ripple Protection eeeeeeeeeeeeeeee 154 4 34 PJ Defective Combination of Inverter and Fan Driver 155 4 35 UD Gas Shortage Malfunction rranrrnnnennnrrnanrnnnnrnnnnrnnnrnnnnnnnnnnnnennn 156 1506 TRETT 157 4 37 Ue Power Supply Insufficient or Instantaneous Failure 158 4 38 UY Malfunction of Transmission between Indoor and Outdoor Uniit cccecccssseeceeeeeeeseeeeeeeeeeeeenees 161 4 39 US Malfunction of Transmission between Indoor Unit and Remote Controller
149. lter is set to FILTER CONTAMINATION HEAVY SET MODE NO to 10 FIRST CODE NO to 0 and SECOND CODE NO to 02 24 Field Setting SiBE26 701 Field Setting of Indoor Unit 1 1 2 Wireless Remote Controller Indoor Unit BRC7 type MODE NO FIELD SET MODE 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 V 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 Ook 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 0 Field Setting 25 Field Setting of Indoor Unit SiBE26 701 1 2 Setting Contents and Code No SkyAir Indoor Unit Mode Setting Setting Contents NM NAE Code No Note 3 No Switch settings Note 2 No Ko 04 10 20 Filter contamination heavy te m LE ELEM LS light Setting for display Bergie life time to clean air filter filter L3 Sets display time to clean air filter to half when there is zr life i pus heavy filter contamination ded his ad m L3 filter 200 100 m L3 EN Long life filter type Long
150. mponent assembly box cover Disconnect the connector from the main PC board A1P Electrical component LED lamps can be viewed i B The operation buttons and through the inspection hole Lo Disconnect the relay connector for the fan motor M1F X1A X2A Control terminal block X1M e Main PC board ps PC Fall underneath Remove the power wire from the terminal block X1M three screws Disconnect three lead wires from the terminal Ground wire block for the inverter compressor M1C fasten terminal 3 places Remove the indoor outdoor wiring from the control terminal block X2M on the main PC board three screws E ur US Ag T ae a gt Remove the earth Electrical y component rf ee assembly p Unscrew the three w SV d p screws and lift the top i LEY P P of the electrical T component assembly to f remove it OG y 196 Power wire m Fix the top of the electrical component box il SN qp
151. mption Forced thermostat OFF Forced thermostat OFF When this setting intervenes the operation mode as shown on the below the compressor stops after the operation mode as shown on the below completes Compressor N operation OFF Und Control as shown corte LL on the right Completion ON nm Input of forced stop ce Compressor startup control Requires approx 2 minutes Defrosting operation during heating dita up to approx 10 Oil return operation This is operation to return refrigerant oil to the compressor May require up to approx 10 when load is low and the compressor continues operation for minutes a long period of time with a low frequency Also in cases other than above the compressor gradually May require up to approx 60 reduces the frequency and then stops seconds Field Setting 35 Field Setting of Outdoor Unit SiBE26 701 m Setting Procedure 1 Connect the demand adapter X80A to X36A and X66A on the outdoor unit control PCB 2 According to the desired demand short circuit between the terminals on the demand adapter terminal block X801M EE Setting procedure 20 pai Input signals Normally a contact Input current for each contact is approximately 12 mA As an input contact use a contact for minute electric current Use the minimum applicable load operable at 12 VDC or less 1 mA or less Field wiring
152. n YES Faulty trap in water drainage system Replace indoor unit PC board 113 Diagnosis by Remote Controller SiBE26 701 4 10 A Malfunction of Capacity Determination Device Remote controller display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 114 Hu FAQ FCQ FFQ FHQ FUQ Capacity is determined according to resistance of the capacity 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 When the capacity code is not contained in the PC board s memory and the capacity setting adaptor is not connected m You have forgotten to install the capacity setting adaptor B Defect of indoor unit PC board Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred AN Caution The indoor unit PC board was replaced with a replacement PC board Replace the indoor unit PC board Was the Capacity setting adapter mounted when replacing the PC board Replace the indoor unit PC board Install a capacity setting adaptor V2783 Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 11 C4 Malfunction of Heat Exchange Temperature Sensor System gt 3 Cc Remote Controller Display Applicable All indoor unit models Mo
153. n Test Operation button on the remote controller allows the unit to Service Mode enter the Test Operation mode Normal operation EE Field set mode mode Push the button for 4 seconds or longer When the Start Stop button is pushed after the Test Operation mode is set test operation starts Test Operation appears on the remote controller 22 Remote Controller SiBE26 701 Field Setting a 2 3 Part 4 Field Setting Field Setting or Indoor WANN teneo EU Hoe EON DOE QU rti asia ce dcos 24 1 1 Field Setting from Remote Controller esessssessssss 24 1 2 Setting Contents and Code No SkyAir Indoor Unit 26 1 3 Detailed Explanation of Setting Modes eeesseesse 27 Field Setting of Outdoor Unit arrrnrnnrnnranrnrnnnrnrnnnennnnrnnnanennnnnnnnnnnennnnee 32 2 1 Field Setting from Remote Controller eeeeseesssssssss 32 2 2 Field Setting by Demand Adapter ccccseccccseeeeeeeeeseeeeeseeeesaeeesseees 35 2 3 Field Setting from Outdoor Unit PC Board sss 38 Emergency VPS IT aS 44 3 1 Emergency Operation Forced Operation Setting Procedure 44 3 2 Test Operation Setting ProCeCure ccccccsecccesceceeeeeceeseeseeeesneeeenees 45 3 3 Emergency Operation When the Remote Controller is Lost 45 23 Field
154. n outdoor unit heat exchanger Defrost starting condition m Intelligent type Defrosting starts when the following conditions have been realized Th2 lt 3 C Th2 lt 0 4 xTa 5 C Defrost upper limit time A is met e OR eR OD Accumulated heating capacity is decreasing Thermostat ON continues for 5 minutes or more Frost upper limit time A is determined as follows according to the Field setting by remote controller see P58 Upper limit duration A of frost The following table shows the upper limit duration A of frost according to defrost start setting conditions indoor remote controller field setting mode Early defrost start Late defrost start uuu Outdoor ar temp gt SG Outdoor air temp lt 5 C B hours 68 Function and Operation SiBE26 701 Outdoor Unit Max Integral Capacity Value mme Integral Capacity Heating Integral Capacity Compressor Running Time Heating Defrosting gt a Defrost activation temperature Using field setting switches see P69 the temperature to activate defrosting can be shifted as Evaporating Temperature C Outside air temperature C Fa NN Mode 2 4degUP SSN Factory setting ENS SS When defrosting conditions are met during heating operation the indoor unit is demanded defrosting and the following control is performed Defrost control Defrosting start Defrosting complete 218Hz Compressor 74Hz J INV i OFF
155. nd then restarts after 3 minutes 4 n case of PCB failure emergency operation is unavailable 44 Field Setting SiBE26 701 Emergency Operation 3 2 Test Operation Setting Procedure 1 Push the Inspection Test Operation button on the remote controller 4 times Push the Inspection Test Operation button 4 times Test operation mode 2 When the Start Stop button is pushed after the test operation mode is set test operation starts The first operation after installation can be set either by field setting Setting mode 1 using the outdoor PCB or by remote control setting The first operation after installation is always cooling operation test operation control Because the test operation control finishes in approximately 3 minutes continue operation by returning to the normal operation mode 3 3 Emergency Operation When the Remote Controller is Lost When the remote controller does not work due to battery failure or is lost use this switch which is located beside the discharge grille on the main unit When the remote controller does not work but the battery low indicator on it is not lit contact your dealer START 1 To press the emergency operation switch The machine runs in the previous mode The system operates with the previously set air flow direction STOP 2 Press the EMERGENCY OPERATION switch again Field Setting 45 Emergency Operation 46 SiBE26 701 Field Setting SiBE26 701 F
156. necting the cable between the indoor and outdoor 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 battery see a doctor immediately Installation of a leakage breaker is necessary in S
157. ng 1 Use charge hoses and gauge manifolds designed for R 410A from the perspective of resistance to pressure and prevention of impurities SUNISO oil etc from entering 2 Be sure to blow nitrogen while brazing When connecting the flare apply ether or ester oil on the flare 3 Air tightness test must be conducted at 4 0 MPa 4 Be sure to vacuum and dry refrigerant and refrigerant charging must be carried out from the liquid side in the form of liquid Precautions when handling the outdoor PC board Even when not energized touch a grounded metal part with fingers before touching any part or pattern in order to discharge electricity charged in your body 98 Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 Diagnosis by Remote Controller 4 1 Confirm Method of Malfunction Code 4 1 1 Self diagnosis by Wired Remote Controller Explanation If operation stops due to malfunction the remote controllers 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 102 for malfunction code and malfunction contents Operation LED ON OFF button Display of indoor unit for which a malfunction has been detected Inspection display Malfunction code Inspection Test button Note 1 Pressing the INSPECTION
158. ng degree Solenoid valve for receiver gas purging SVG ON open Ending condition 60 seconds elapsed with residual operation ees MPa when cooling LP lt 0 14 MPa when heating OR 66 Function and Operation SiBE26 701 Outdoor Unit 2 4 5 6 Cooling Operation Low Outdoor Air Temperature Control Under low outdoor air temperature conditions during cooling operation the outdoor unit fan is controlled to maintain high pressure and secure refrigerant flow Normal operation Hp Lp 1 3MPa Compression ratio lt 2 2 OR OR a Hp Lp gt 1 7MPa amp Compression ratio gt 3 0 Hp 2 35MPa Hp gt 2 75MPa Every 90 seconds Outdoor unit fan In case of RZQ200 and 250C Down by one step 2 4 5 7 Control by Inverter Fin Temperature Restricts compressor operation upper limit frequency to prevent compressor from tripping due to inverter fin temperature l Inverter fin temperature gt 82 C Normal operation Compressor frequency Compressor frequency Inverter upper limit frequency 1 step 3 min Fin temperature lt 79 C Maximum frequency lasts for 3 minutes Control by current detection The compressor frequency upper limit is limited to prevent trip caused by inverter overcurrent Inverter current gt Upper limit current Normal operation Compressor frequency Compressorfrequency Inverter frequency 1 step 1 minute Inverter current lt Upper limit frequency Upper limit curre
159. nit Soiled heat exchanger of indoor unit There is some interfering item in airflow of indoor unit Malfunction of indoor unit fan 87 Troubleshooting Based on Equipment Condition Troubleshooting 88 Heating Indoor unit Cooling Outdoor unit SiBE26 701 AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the operation lamp of remote controller flashing operation lamp Of indoor unit photo sensing section flashing J NO NO Does the fan rotate YES YES Is the filter soiled NO Is there any item YES disturbing airflow Is the detection temperature of the indoor unit suction thermistor normal YES NO Is the heat YES exchanger soiled Possible causes as follows Refrigerant overcharge Mixing of air in refrigerant system x Faulty pressure switch Diagnose based on the error code on remote controller Malfunction of fan motor Check the magnetic switch and aux switch for fan motor Cleaning Remove the disturbing item When the temperature detected by the thermistor is compared with the actual temperature and they are different each other find out the cause thermistor position presence of short circuit etc Cleaning of the heat exchanger After vacuum drying charge correct amount of refrigerant Check the pressure
160. nit according to the Field Setting Procedure section After the completion of Step 2 above be sure to turn OFF the power Remove the remote controller from the master unit and connect to the slave unit Turn ON the power again and switch the Second Code No to 02 as done in Step 1 Make all the settings of the slave unit according to the Field Setting Procedure section After the completion of Step 6 above be sure to turn OFF the power If there are more than 2 slave unit repeat Steps 4 through 7 After the completion of the setting of slave units return the remote controller from the slave units to the master unit to end this procedure 0 00 0I 1 3 7 Fan Speed OFF when Thermostat is OFF When the cool heat thermostat is OFF you can stop the indoor unit fan by switching the setting to Fan OFF Used as a countermeasure against odor for barber shops and restaurants Setting Table First Code No Second Code Ns NEM KNEE m au Fan OFF 28 Field Setting SiBE26 701 Field Setting of Indoor Unit 1 3 8 Automatic Operation Mode Control Selection of the Automatic Operation Mode with a remote controller prevents excessive cooling and heating and offers the most comfortable air temperatures Qutdoor air temperature D gt The ideal target indoor temperature is Indoor air temperature determined and controlled Temperature set by remote controller When Permitted is switched to Prohibi
161. nnnnnennnnnnnnn 112 4 9 AF Failure of Drain GUBIBITLL uere er EPARR H ME VEN SERE ERE IE AES Rm EE ne 113 4 10 AU Malfunction of Capacity Determination Device 114 4 11 C4 Malfunction of Heat Exchange Temperature Sensor System 115 4 12 C9 Malfunction of Suction Air Temperature Sensor System 116 4 13 tC Malfunction of Humidity Sensor System ssssssss 117 4 14 tJ Malfunction of Remote Controller Air Thermistor 118 4 15 EF Failure or Outdoor Unit PC BOT ica sicccsciccs rael EUR REP MEUS E EMPEIaE RE en 119 4 16 E3 Abnormal High Pressure Level rrrrnrrrrnrannnrnvnrrnvnnrennnrnnnnennnrennnen 120 Table of Contents SiBE26 701 4 17 EY Low Pressure System Malfunction ranrrnrnnnvnrnnrnnnnnrnvnnrennnnrnnnnnen 122 4 18 ES Inverter Compressor Motor LOCK ccccsececeeeeeeseeseeeseeeeseeeeaes 124 4 19 EP Malfunction of Outdoor Unit Fan Motor cccccccsseeeeseseeeeeeeenees 125 4 20 ES Malfunction of Moving Part of Electronic Expansion Valve 128 4 21 F3 Malfunction of Discharge Pipe Temperature 130 4 22 H3 Abnormal High Pressure Switch rrrnnrrnrnrrrnnnnrnnnnrnvnnnrnnnnrennnnennnn 132 4 23 HT Abnormal Outdoor Fan Motor Signal eeessssssss 134 4 24 HS JP I5 JB UP Ja Ma
162. nosis by Remote Controller SiBE26 701 Check No 5 176 Check for Clogged Points Temperature differences must occur before or after the clogged points X aL QO RAC COMP Indoor Unit be E utdoor Unit 182674 Check points Check facto Temperature Dust Replace the expansion expansion difference Choked moisture valve mechanism Reduced effective pipe diameter due to adherent contamination etc Accumulator Frosting Choked moisture Blow a nitrogen gas and then replace the refrigerant Q Distributor Temperature Dust Replace the heat difference Choked moisture exchanger or distributor Reduced effective pipe diameter due to adherent contamination etc Field piping Temperature Collapsed pipe Replace the pipe difference Stop valve Temperature The stop valve is not fully open Open the stop valve fully difference Note RZQ200 250C7Y1B has no accumulator Please refer to the piping diagram Troubleshooting SiBE26 701 Diagnosis by Remote Controller Check No 6 Check for Thermistors Disconnect the thermistor connector from PC board then measure the resistance by using a tester Thermistor temperature and resistance measurement Unit kQ ks Vs C 00 es 61 mo 20 ss s 360 60 49 43 40 8
163. ns that short circuit easily occurs 7 ls the refrigerant gas short a In heating operation Check items Possible causes 1 Does the outdoor unit fan run normally 2 Is the outdoor unit heat exchanger clogged 3 Is the outdoor unit installed under such conditions that short circuit easily occurs 4 s there clogging before or after the EV capillary 5 Is the check valve clogged 6 Is the LPS normal 7 ls the refrigerant gas short Troubleshooting Judgment Visual inspection Visual inspection Check if there is a temperature difference before and after EV capillary Check if the main valve unit of EV operates by noise vibration w N gt 4 Check if there is a temperature difference before and after check valve If YES the check valve is caught 5 Check continuity using a tester 6 Visual inspection 7 Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant Judgment 1 Visual inspection 2 Visual inspection 3 Visual inspection 4 Checkif there is a temperature difference before and after EV capillary Check if the main valve unit of EV operates by noise vibration 5 Checkif there is a temperature difference before and after check valve If YES the check valve is caught 6 Check continuity using a tester 7 Conduct refrigerant collection and vacuum drying and then add proper amount refrigerant 175 Diag
164. nt Upper limit current 14 7A 2 4 5 8 Control of Electric Discharge of Capacitor The capacitor is discharged for one minute after K2 is turned OFF for 40S remote control stop malfunction stop compressor and outside unit fan motor are stopped with retry system thermostat OFF During this operation operational noise may be heard from the outdoor unit Function and Operation 67 Outdoor Unit SIBE26 701 2 4 5 9 Suction Pipe Superheat Protection Control in Heating Operation Only In heating operation controls compressor operating frequency to prevent oil from remaining in the outdoor unit heat exchanger by the continuous operation of compressor at high superheated degree of the suction pipe Compressor step Maximum frequency Suction SH gt 8 C Suction SH lt 8 C for 1 minute continuously Compressor step Compressor step 1 step 1 step Suction SH gt 8 C for 30 seconds continuously Suction pipe superheat control 2 4 5 10 Anti freeze Control in Cooling Operation Only The thermostat is turned OFF when temperature and time meet the following conditions to prevent the indoor heat exchanger from freezing O e Indoor heat exchanger temperature lt 5 C for 1 minute continuously e Indoor heat exchanger temperature lt 1 C for an accumulated 40 minutes 2 4 6 Oil Return Defrosting Operation etc 2 4 6 1 Defrosting Operation When heating operation defrost operation is conducted to melt frost o
165. ntal or vertical fans to adjust airflow is shown in the table below FAQ71 FAQ100 In Airflow Thermostat ON Setting Direction Cooling Operation Thermostat OFF 9 9 9 n Swing Thermostat ON Swing Operation Thermostat OFF Swing In Airflow Thermostat ON Setting Setting Setting Direction l l Dry Operation Thermostat OFF Setting Setting Setting n Swing Thermostat ON Swing Operation Thermostat OFF Swing In Airflow Thermostat ON Setting Setting Setting Direction Heating Operation Thermostat OFF in Swing Thermostat ON Operation Thermostat OFF In Airflow Direction Setting Setting Setting Operation i ser Spel 1 1 7 Drain Pump Control 1 During cooling and program dry operation modes the drain pump continues operating 2 During heating operation When the following conditions are satisfied the drain pump turns ON ON Drain Pump gt OFF 5 min i 5 sec Float ON Switch OFF 1 1 8 Electric Heater Control Before activating heating overload control turn OFF the electric heater to avoid elevation of high pressure eee wv uu OFF condition Indoor heat exchanger temperature Tc 252 C Reset condition Indoor heat exchanger temperature Tc lt 47 C Function and Operation 51 Indoor Unit SiBE26 701 1 1 9 Dew Condensation Prevention Control FHQ71 100 FAQ71 100 In cooling and dry operation the following control is carried out in order to prevent dew condensa
166. ntrary winds blow hard the contrary winds are automatically detected to stop the fan and conduct heat exchange utilizing the natural wind In this case the fan motor may not output voltage while such an operating status is not abnormal The LPS cannot be activated by closing the stop valve while in cooling operation Be sure to use the Pump Down Switch to collect the refrigerant Because refrigerant gas remains in the field piping be sure to collect residual gas using a refrigerant recovery unit Top panel sealing materials have a function to prevent water from entering from the fan chamber to the mechanical chamber electrical components and dew condensation water on the top panel from dropping on the switch box Therefore if delamination and breakage of sealing materials occurs during servicing replace them Capacity setting is made with DIP switches on the PC board For more information refer to T7 Maintenance Inspections 1 2 Refrigerant Saturation Curve R 410A 78 44 Absolute Pressure MPa mr Er TJ 3 70 3 50 3 30 3 10 2 90 2 70 2 50 2 40 EN NEN i 2 30 2 20 2 10 2 00 1 90 1 80 1 70 1 60 1 50 1 40 1 30 1 20 1 10 1 II 0 90 6 oso 1 T 0 50 0 40 plum 0 30 0 20 MM M M M M M M 0 10 0 00 1 1 L 3 34434334 0 10 50 40 30 20 10 0 10 20 30 40 50 60 Temperature C SiBE26 701 Gauge Pressure MPa G Absolu
167. o measure the output voltage of connector X29A when the power is restored Is the presence and absence of continuity reversed YES NO NO Is the measurement 200 VAC Replace the indoor PC board YES Replace the swing motor assembly Troubleshooting 97 Procedure of Self Diagnosis by LED SiBE26 701 3 Procedure of Self Diagnosis by LED 3 1 Troubleshooting by LED on Outdoor Unit PC Board The following diagnosis can be conducted by turning on the power switch and checking the LED indication on the printed circuit board of the outdoor unit LEDon G6 LED off iP LED blinks Not used for diagnosis Microcomputer in normal operation Error detection D ot HAP p Green Red ee nm 9 1 Faulty outdoor unit PC board Note 1 Power supply abnormality or faulty outdoor unit PC board Note 2 Activation of protection device Note 3 d Notes 1 Turn off the power switch and turn it on again after 5 seconds or more Check the error condition and diagnose the problem 2 Turn off the power switch After 5 seconds or more disconnect the connection wire 3 Then turn on the power switch If the HAP on the outdoor unit PC board flashes after about 10 seconds the indoor unit PC board is faulty 3 Also check for open phase The error detection monitor continues to indication the previously generated error until the power switch is turned off Be sure to turn off the power switch after inspection
168. of SS 1 on indoor unit PC board at Emergency Turn the switch to Normal and reset power supply Check the unit based on indoor unit LED and outdoor unit LED Trouble Shooting 81999 96 Troubleshooting SiBE26 701 Troubleshooting Based on Equipment Condition 2 12 Swing Flap does not Move Applicable FAQ FBQ FHQ FUQ Models Error Detection Use the limit switch that turns ON and OFF according to the motor rotation Method Error Generating When ON and OFF of the micro switch for positioning control cannot be switched even when Condition the motor for regulating airflow direction is powered for a certain period of time approx 30 seconds Possible Cause Swing motor failure Micro switch failure Connector connection failure Indoor PC board failure Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred connector properly connected to X29A and NO Connect properly Is the relay connector of the limit switch properly connected Connect properly Turn OFF the power and then turn it ON again to check whether if the motor for regulating airflow direction swings when the power is restored Disconnect X14A turn OFF YES the power and turn it ON again to check the continuity of the limit switch when the power is restored Does it swing Turn OFF the power and then turn it ON again t
169. of cover soundproof cove Before working make sure loop fastener that the refrigerant is completely removed Remove the coil spring to heater LN ET crank case heater Avoid overlap with the welded part of the Remove the compressor Epsom terminal cover Place the coil spring for the T heater between the lead Disconnect the lead wire ZA m NU wires from the compressor E WU terminal area Unscrew three bolts that QQ iN t fix the compressor 4 Brazing Cut the discharge pipe A and suction pipe B using a pipe cutter Lead wire Lift the compressor and pull it toward you W Compressor terminal markings Remove brazing from the remaining piping point A Terminal When the piping is cut oil comes out Bolts fixing the compressor Before cutting the piping place 3 places rag under the piping for the purpose of curing Removal Procedure 201 RZQ200 250C7Y1B SiBE26 701 1 8 Procedure for Removal of Thermistor Procedure m Remove the front panel middle bottom according to the procedure for Removal Related to Outside Panel 1 Remove the outdoor air temperature thermistor 1 Apply the principle of leverage to remove the clamps 2 Pull out the fixture from the outdoor air temperature thermistor 2 Remove the suction pipe thermistor 1 Cut the clamps 2 places for the heat shield
170. of less than 0 25MPa continues for more than 30 minutes with the electronic expansion valve full open In heating m When large suction overheating more than 20 degrees continues for more than 60 minutes with the electronic expansion valve full open x Malfunction is not decided while the unit operation is continued Failure to open the stop valve Refrigerant shortage Clogging of the refrigerant circuit AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Is the refrigerant quantity proper After recovering vacuuming and drying refrigerant a proper amount of refrigerant must be charged SEE P176 Check the clogging of the refrigerant circuit aleve P 180 Check the operation status Only the alert is given The system does not stop operation Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 36 UJ Reverse Phase Remote Controller Display Applicable Model Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Troubleshooting Ul R Y The reverse phase detection circuit detects the phase of each phase and judge whether it is normal or reverse When the reverse phase is confirmed m Faulty connection of power supply wiring m Disconnection in power supply wiring AN Be sure to turn off power switch before connect or disconnect connector Caution
171. ome 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 Introduction For integral units If the packing and seal are not installed properly water can enter the room and only wet the furniture and floor 1 1 3 Inspection after Repair 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 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 Introduction SIBE26 701 Check to see if the parts and wires are mounted and connected properly and if the connections at the soldered or crimped terminals 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
172. on PC board A3P L gt m Locking guard spacer Disconnect the 397p mounting condition connector from the PC board A3P LI AT eS SV PC board QA transmission al Ty Remove the screw and PC board AP TE ad clamp of the earth wire oe de EG a connects with PC e cs Screw Remove the head of Locking guard spacer locking guard spacer to 4 places pull out QA transmission PC board board 3 Remove the inverter PC board A2P Unscrew the two screws to remove the main PC board mounting plate Screws Unscrew the four screws to remove the equipment mounting plate Screws Equipment mounting plate Disconnect all the connectors from the inverter PC board a Connector x 9 X4A X504A X502A X6A P3 b Screws x 8 Unscrew the six screws to remove the inverter PC board A2P WA EAN al a 198 Removal Procedure SiBE26 701 RZQ200 250C7Y1B 1 5 Procedure for Removal of Electronic Expansion Valve and Solenoid Valve Procedure AN Warning Be sure to commence the disassembling work after 10 minutes or more elapsed from all power supplies have been turned off Step
173. on of function Power supply ON Initialize electronic expansion valve Initialize microcomputer Stopping Crank case heater control refer to outdoor unit item 2 4 2 2 Remote controller ON operation Judgement Operation mode judgement Cooling Dry Emergency Emergency operation Cooling Dry refer to outdoor unit 2 4 7 1 Emergency operation refer to outdoor Room thermostat control unit item 2 4 3 2 refer to outdoor unit item 2 4 3 1 refer to indoor unit draft avoidance control Normal control Compressor step control refer to outdoor unit item 2 4 4 1 Discharge pipe temperature protection control Electronic expansion valve PI control refer to outdoor unit item 2 4 5 4 refer to outdoor unit item 2 4 4 2 Inverter current protection control refer to outdoor unit item 2 4 5 7 PMV control refer to outdoor unit item 2 4 4 3 Inverter fin temperature protection control refer to outdoor unit item 2 4 5 7 Low pressure protection control Overall current protection control refer to outdoor unit item 2 4 5 7 refer to outdoor unit item 2 4 5 1 Suction pipe superheat degree protection control High pressure protection control refer to outdoor unit item 2 4 5 9 refer to outdoor unit item 2 4 5 2 u Simulated operation refer to outdoor unit item 2 4 7 2 Heating overload control refer to outdoor unit item 2 4 5 6 Heating Starting control 4 way valve changeover Hot star
174. operating In simultaneous ON OFF multi system It is normal It is caused by a signal setup indoor unit sub does not operate in transmission lag sync with the other indoor unit main Flat fan etc 16 7 1 Co 19 Indoor unit fan operates after heating It is normal The fan operates in the LL operation stops mode for 60 to 100 seconds to dissipate the residual heat in the heater 20 Drain pump operates when equipment is It is normal The drain pump continues to not operating operate for several minutes after equipment is turned off 21 Horizontal wing sends air to different It is normal The airflow direction in cooling directions in cooling and heating even if itis dry operation is different from that in set to the same position heating fan operation Flap remains horizontal even if it is set to It is normal The flap does not swing in the Swing thermostat OFF mode The group control remote controller is It is normal Remote controller thermostat incapable of setting to remote controller setting is unavailable during group control thermostat During operation with a remote controller It is normal In some cases it is controlled thermostat the thermostat turns OFF even by preset temperature and suction before the remote controller temperature temperature body thermostat reaches the setting 22 3 2 When a malfunction occurs in a unit It is normal The address display of eq
175. or else 153 Diagnosis by Remote Controller SiBE26 701 4 33 P Inverter Over Ripple Protection Remote Pi Controller Display Applicable RZQ Models Method of Imbalance in supply voltage is detected in PC board Malfunction Imbalance in the power supply voltage causes increased ripple of voltage of the main circuit Detection capacitor in the inverter Consequently the increased ripple is detected Malfunction When the resistance value of thermistor becomes a value equivalent to open or short circuited Decision status Conditions Malfunction is not decided while the unit operation is continued P1 will be displayed by pressing the inspection button When the amplitude of the ripple exceeding a certain value is detected for consecutive 4 minutes Supposed B Open phase Causes B Voltage imbalance between phases B Defect of main circuit capacitor B Defect of inverter PC board B Defect of K2 relay in inverter PC board B improper main circuit wiring Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Imbalance in supplied voltage is in excess of 14 V Y1 1 NO NO YES YES Open phase Open phase Normalize field cause Fix power supply voltage imbalance Part or wiring defect After turning the power supply YES OFF check and repair the main circuit wiring or parts 1 Loose or disconnected wiring between power supply and inverter
176. or parts damage may be occurred Turn the power supply off once and then back on Is the U1 displayed on the remote controller NO Could result from external cause e g noise other than malfunction Are the phases of circuit breaker matched Interchange the power supply cables Does imbalance in the power supply voltage occur 10 YES Check for the power supply facilities Replace the outdoor unit PC board 157 Diagnosis by Remote Controller 4 37 Uc Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 158 SiBE26 701 Power Supply Insufficient or Instantaneous Failure Li RZQ N Detection of voltage of main circuit capacitor built in the inverter and power supply voltage When the voltage aforementioned is not less than 780V or not more than 320V or when the current limiting voltage does not reach 200V or more or exceeds 740V Power supply insufficient Instantaneous power failure Defect of inverter PC board Defect of outdoor control PC board Main circuit wiring defect Faulty compressor Faulty fan motor Faulty connection of signal cable Troubleshooting SiBE26 701 Troubleshooting Diagnosis by Remote Controller AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred
177. otection control Inverter current protection control Control by inverter fin Control by inverter fin temperature temperature Cooling operation low 7 st et ling Fed nad outdoor air control SPS ov col SICCO i NINE unit fan control Steady control indoor unit fan Compressor step control No instruction Discharge pipe pipe Electronic expansion valve control temperature protection control temperature protection control n n Subcooling electronic GE S 1 When the four way valve is wm switch the four way valve Low pressure protection or eae Outdoor Unit SiBE26 701 2 3 3 Cooling 3 Pump Down Residual Operation Oil Return Operation Compressor in operation Cooling operation pump down residual operation Oil return operation control High pressure protection High pressure protection control control Discharge pipe Discharge pipe M1C temperature protection Fmin Cool oil return temperature protection Compressor INV 124Hz control Oil return control Inverter current implementation step Inverter current protection control protection control Control by inverter fin Control by inverter fin temperature temperature u Cooling operation low Outdoor unit fan 2 ov residual 7 steps outdoor air control P Outdoor unit fan control Control before the N Indoor unit fan compressor stops indoor Oil ae preteen No instruction control unit fan Electroni
178. otection thermostat acted Aiter vaciumen ina charge correct amount of refrigerant Then start operation again YES Replace power cable Is there any temperature difference between inlet and outlet of expansion Expansion valve malfunction there any temperature difference between suction side and discharge side of Four way valve malfunction Malfunction of compressor Check compressor s1993 Troubleshooting 89 Troubleshooting Based on Equipment Condition SiBE26 701 2 6 Equipment Operates but does not Provide Cooling Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause m Overcurrent relay for compressor Compressor protection thermostat m Overcurrent relay for compressor may act due to the following reasons Lower voltage of power supply Excess level of high pressure Insufficient size of power cable Malfunction of compressor m Compressor protection thermostat may act due to the following reasons Internal leakage of four way valve There is no difference between suction and discharge temperature Insufficient compression of compressor Incorrect refrigerant Faulty expansion valve Insufficient circulation of refrigerant 90 Troubleshooting SiBE26 701 Troubleshooting Troubleshooting 335 Troubleshooting Based on Equipment Condition AN Be sure to turn off power switch before connect or disconnect connecto
179. over as er AW AAS a guide when mounting the fan Unscrew the four screws and then slide below the electrical component box cover to remove it Remove the relay n Relay connector HIE Y connector X1 A X2A Le power ve R Zi for the fan motor M1F la ch muy N 7 E g S lA fh E j connector H get in Remove the tie wraps Za j signal wire that fix the lead wire Unscrew the four bolts that fix the fan motor to remove the fan motor Removal Procedure 195 RZQ200 250C7Y1B SiBE26 701 1 3 Procedure for Removal of Electrical Component Assembly Procedure AN Warning Be sure to commence the disassembling work after 10 minutes or more elapsed from all power supplies have been turned off Step Procedure Points m Remove the front panel middle bottom according to the procedure for Removal Related to el ENN 1 IV Outside Panel B Unscrew the four screws and then slide below the electrical component box cover to remove it 1 Remove the electrical co
180. ow noise start setting according to the load of air Night time low noise end setting Operation sound conditioning when load is heavier Rated operation Night time low noise setting sound l l Operation sound of r i 4 Operation sound during mode 1 night time low noise mode O t dE s is instructed can be set with pela on edn 1 Night time low noise level mode 2 setting Operation sound of pesseseseee eem e 1 Factory setting is Mode 2 mode 3 Operation sound level set with l l PM 8 00 PM 10 00 AM 6 00 AM 8 00 SNo NP Set with Night time low noise start setting Set with Night time low noise end setting Factory setting is PM 10 00 Factory setting is AM 8 00 Start time and End time must be regarded as a guide because they are estimated based on the outside air temperature Field Setting 33 Field Setting of Outdoor Unit 2 1 4 In Case of Flat Installation For flat installation where an indoor unit and an outdoor unit are installed with a difference in elevation of less than 5 m use this setting SiBE26 701 An energy saving effect is prominent during low cooling operation with outside air partial load operation It is applicable to the installation as shown in the figure below Do not change the setting for other installation conditions Deficiency in performance may result When the indoor unit is installed in an upper position
181. p Pressure equalization No instruction No instruction No instruction control before startup Indoor unit fan OFF OFF OFF After Restart standby between eee a Outdoor unit in operation 10 seconds at the earliest aperauon and OFF Up to 1 minute outdoor unit thermostat ON OFF 1 In the instruction on inverter compressor frequency 0 Hz indicates K2 magnetic contactor for inverter compressor is ON OFF indicates K2 magnetic contactor for inverter compressor is OFF 2 While the compressor is stopped when heating is switched to cooling the previous state is maintained 2 3 2 Cooling 2 Startup Control Control During Operation Hid M1C Compressor INV Startup control Outdoor unit fan Surin conto Surin conto Indoor unit fan Electronic unit fan Startup control expansion valve Y1E main Electronic expansion valve subcooling Four way valve Solenoid valve for venting receiver gas Solenoid valve for hot gas Remarks Function and Operation Startup control Indoor Electronic expansion valve fixed open degree control Compressor in operation Startup control In normal operation Low pressure protection control High pressure protection control Discharge pipe temperature protection control Inverter current protection control Low pressure protection control High pressure protection control Discharge pipe temperature pr
182. pment Condition 1 Equipment does not operate 2 Fan operates but compressor does not 3 Cooling heating operation starts but stops See 87 immediately 5 Equipment operates but does not provide See 90 cooling Equipment operates but does not provide See 92 heating 4 After equipment shuts down it cannot be See 89 restarted for a while Equipment produces loud noise or shakes Equipment discharges dust 10 Remote controller LCD displays 88 11 Swing flap does not operate Equipment emits odor Room smell and cigarette odors accumulated inside the indoor unit are discharged with air Inside of the indoor unit must be cleaned NO 13 Flap operates when power is turned on It is normal The flap initializes for accurate positioning 14 Change of operation mode causes flap to It is normal There is a control function that move moves the flap when operation mode is changed 15 Fan operates in M mode during heating Itis normal It is caused by the activation of even if remote controller is set to Low the overload control airflow shift control Flap automatically moves during cooling Itis normal It is caused by the activation of the dew prevention function or ceiling soiling prevention function Indoor unit fan operates in L mode for 1 It is normal The monitoring function minute in microcomputer controlled dry forcibly operates the fan for one minute mode even if compressor is not
183. 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 1 3 11 Fan Speed Changeover when Cooling Thermostat is OFF By setting to Set Fan Speed you can switch the fan speed to the set fan speed when the cooling thermostat is OFF Setting Table First Code No Second Gode No 01 LL Fan S d ven e o eme Set Fan Speed Field Setting 29 Field Setting of Indoor Unit SiBE26 701 1 3 12 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 B Inthe Case of FHQ FAQ Setting Switch Setting Position Wall mounted type Standard 13 23 Wall mounted type Slight increase Wall mounted type Normal increase B Inthe Case of FUG FFQ First Second Ceiling height ron oe Setting 4 way Outlets 3 way Outlets 2 way Outlets EG Standard N Lower than 2 7 m Lower than 3 0 m Lower than 3 5 m High Ceiling 5 Lower than 3 0 m Lower than 3 3 m Lower than 3 8 m Higher Ceiling S Lower than 3 5 m Lower than 3 5 m PS FFQ can not set two ways outlets B Inthe Case of FCQ50 71 First Second Ceiling height cone ri Setting 4 way Outlets 3 way Outlets 2 way
184. pped 2 Refrigerant recovery mode Used when recovering refrigerant by connecting the refrigerant recovery unit 3 Demand 1 operation Used during energy saving operation by controlling the upper limit of compressor operation frequency 4 Defrost changeover 2 operation Used when setting the temperature condition that determines whether defrosting operation starts or not 39 Field Setting of Outdoor Unit SiBE26 701 Change of Setting Conditions in Setting Mode 2 Condition setting 0 Addiional refrigerant charge operation o e e e e e og 1 Rewgeanrecveymoe o e e e e e o Push and hold thetMODE BS1 button for 5 seconds and set to Setting mode 2 7 Demadiowmim o e e o o 9 lon 31 Detrost changeover z operation o e e o e o o is EMG operations o e o o 9 wore 34 Backup operon o e e olo ole The numbers in the No column represent the number of times to press the SET BS2 Selection of setting items Push the SET BS2 button and set button the LED display to a setting item shown in the table on the right V Push the RETURN BS3 button and decide the item The present setting condition is blinked Selection of setting conditions Push the SET BS2 button and set ON OFF Pattern to the setting condition you want l Push the RETURN BS3 button and decide th
185. pressor in operation EAO startup control In normal operation Low pressure protection control High pressure protection High pressure protection control oe de sl ischarge pipe i emperature protection Compressor Startup control temperature protection Sore step control control Inverter current Inverter current protection control protection control Control by inverter fin Control by inverter fin temperature temperature i i Heating operation high Outdoor unit fan M1F According to Startup Heating operation high 7 Step outdoor air control control outdoor air control Gu door unit fan contol No instruction Indoor unit fan Startup control indoor No instruction Steady control indoor unit fan unit fan Startup control Electronic expansion valve fixed open degree control Electronic expansion valve Startup control subcooling Four way ralve dan ONE Solenoid valve for venting receiver gas Solenoid valve for Low pressure protection hot gas control Remarks When the four way valve is mu switch the four way valve Electronic expansion valve main Discharge pipe temperature protection control Discharge pipe temperature protection control Electronic expansion valve control 2 3 6 Heating 3 Pump down Residual Operation Oil Return Operation Compressor in operation Heating pump down residual operation Oil return operation control High pressur
186. pressor stop 0 Hz Stopped times in 30 minutes Malfunction stop E3 display Compressor operation frequency 62Hz Function and Operation 65 Outdoor Unit SIBE26 701 2 4 5 3 Heating Operation High Outdoor Air Temperature Control Under heating overload conditions the outdoor unit fan is controlled to protect the compressor Normal Operation Hp Lp lt 0 4MPa sor l Hp Lp gt 0 8MPa Compression ratio 1 8 amp Compression ratio gt 2 6 Lp lt 0 59MPa Outdoor unit fan Down by one step 2 4 5 4 Discharge Pipe Temperature Protection Control Controls discharge pipe temperature and compressor operation frequency to prevent compressor internal temperature from abnormal rising Lp 0 98MPa Inverter compressor Normal operation Tdi gt 105 C Prohibition of compressor frequency up Tdi gt 110 C Compressor frequency 1 step 30 sec for 10 min e Tdi2135 C e Tdi2115 C continues OR I 52Hz Tdi gt 130 C Compressor frequency 62Hz Tdi lt 105 C Q Do M o T 5 2 S 0 zu o gt Tdi Inverter compressor discharge pipe temperature C 2 4 5 5 Pump Down Residual Operation Conducts pump down residual operation when compressor stops to collect refrigerant in evaporator for preventing liquid refrigerant from remaining in the evaporator Contents of control Compressor 124Hz Electronic expansion valve 0 pls fixed openi
187. r Caution or parts damage may be occurred Measure the temperature of suction air and supply air Temperature difference Suction air temp Supply air temp Temperature Does the YES difference for cooling heat load increase after Normal should be between 8 installation of the l and 18 C unit Possible causes as follows Incorrect selection of model Additional unit installation Affection of direct sun should be considered any frost generate around inlet port of indoor unit heat exchanger or outlet port of operation current YES less than specified level 1 Gas shortage possibly generates trouble expansion Refer error code UO valve Check refer to ede e ANOM on page 180 Clogged air filter Does indoor Soiled heat exchanger unit air flow Malfunction of fan motor Check each section rate down Refer error code A6 Possible causes as follows Refrigerant overcharge is the level EL system Soiled heat exchanger ol desk ol Short circuit of supply air Check each item level Disturbing item in air flow Malfunction of fan motor of outdoor unit Refer error code E7 H7 Possible causes as follows Insufficient compression of compressor Insufficient circulation of Check each item refrigerant Faulty expansion valve 51994 For operating current refer to Electric characteristics on page
188. r Compressor Overcurrent 147 Inverter Over Ripple Protection 154 Items Improved from the Existing Models 196 L Low Pressure System Malfunction 122 M Malfunction of Capacity Determination Device 114 Malfunction of Discharge Pipe Temperature 130 Malfunction of Drain Water Level System Float TYDE ee 105 Drawings amp Flow Charts Malfunction of Field Setting Switch and Transmission Ege EET 167 Malfunction of Heat Exchange Temperature Sensor SIUS IBI EE naue el Dd LEE E 115 Malfunction of High Pressure Sensor 138 Malfunction of Humidity Sensor System 117 Malfunction of Indoor Unit Fan Motor 107 109 Malfunction of Low Pressure Sensor 140 Malfunction of Moving Part of Electronic Expansion VIC THECA 128 Malfunction of Outdoor Unit Fan Motor 125 Malfunction of Remote Controller Air Eam TT TT 118 Malfunction of Suction Air Temperature Sensor Sip Mere 116 Malfunction of Swing Flap Motor 112 Malfunction of Thermistor System 136 Malfunction of Transmission between Indoor and Outdoor Unn sse ertt ut ne PE E Vie 161 Malfunction of Transmission between Indoor Unit and Remote Controller 163 Malfunction of Transmission between Centralized Controller and Indoor Unit
189. r s Operation Status and Pressure Running Current 76 Index Index D Defective Combination of Inverter and Fan Drivel xui exi is a a OR A 155 DE MOSt COMO ovr ER 53 Demand Operation by External Input 35 Detailed Explanation of Setting Modes 27 Dew Condensation Prevention Control 52 Diagnosis by Remote Controller 99 Drain Pump Control sre ie Rete su iss 51 E me EE EE tU eid ust 119 MM Et 120 D 122 zc RQ 124 ET basata eda Lucae E ue oic DROA 125 at 128 Electric Characteristics eseeesssssss 9 Electric Heater Control suus 51 Emergency Operation Forced Operation Setting Procedure sos M 44 Equipment Discharges Dust 95 Equipment Discharges White Mist 93 Equipment does not Operate 84 Equipment Operates but does not Provide COO I ao e e 90 Equipment Operates but does not Provide Hearst SRG 92 Equipment Produces Loud Noise or Shakes 94 Explanation of Each Setting 33 F FO idu daies iterat ing uU S uto ele tei 130 Failure of Drain System ssssssss 113 Failure of Indoor Unit PC Board
190. r to install those parts and accessories Use of unauthorised 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 enquiries please contact your local importer distributor and or retailer Cautions on product corrosion 1 Air conditioners should not be installed in areas where corrosive gases such as acid gas or alkaline gas are produced 2 f the outdoor unit is to be installed close to the sea shore direct exposure to the sea breeze should be avoided If you need to install the outdoor unit close to the sea shore contact your local distributor About ISO 9001 oRGANIZATIO ISO 9001 is a plant certification system ce ISO Op defined by the International Organization for B 14001 Z Standardization ISO relating to quality m assurance ISO 9001 certification covers o Ma quality assurance aspects related to the SEC design development manufacture My a ISO 9001 ISO 9001 installation and supplementary service of UP products manufactured at the plant EC99J2044 JMI 0107 JQA 1452 Dealer e Specifications designs and other content appearing in this brochure are current as of May 2007
191. rator Thermostat OFF Compressor 3 min ON OFF Electronic ON expansion valve SVP OFF Outdoor unit fan ON ALT or Residual operation 2 4 2 2 Crank Case Heater Control When compressor stops for extended period of time crank case heater control is conducted in order to prevent refrigerant from dissolving in compressor oil ON 70 C 75C Discharge pipe temperature i Note According to the ambient temperature and the condition it may control also except the above mentioned discharge pipe temperature For standby power requirement reduction Function and Operation 61 Outdoor Unit SiBE26 701 2 4 3 Startup Control 2 4 3 1 Startup Control When compressor start up the starting frequency is fixed for specified period of time at low frequency to prevent returning of refrigerant Pressure equalizing 165Hz OFF Ty FF Compressor OHZ OFF Electronic ON expansion valve OFF Equalizer d Ll ON electronic OFF expansion valve ON Outdoor unit OFF fan According to startup condition the outdoor unit fan may be turned OFF 2 4 3 2 Room Temperature Thermostat Control When the following conditions are met the thermostat turns ON or OFF Condition for thermostat ON AT20 C Conditions for thermostat OFF e AT lt 1 0 C continues for 30 seconds OR In cooling operation ATS 2 5 C e In heating operation AT lt 3 0 C Where each AT value is as follows In cooling AT In
192. re make measurement of resistance Preparation e To make measurement disconnect all connectors and terminals Inverter PC board mE A e Pr ey ei n sj j m rans ine L t t 43 20 0 m i aig tree Hi los NE E LE D Es cu Hogg 3 7 aed ir t Qr er 5 N 5 a Hi Hs He os H ls R O A nm we t Q T C58 a RO za t ceca C59 Fia HHHHEHH aged 2 e Di S pg S h D J4 J Electronic circuit sace a e as V2895 B According to the checking aforementioned it is probed that the malfunction results from the faulty inverter The following section describes supposed causes of the faulty inverter Faulty compressor ground leakage Faulty fan motor ground leakage Entry of conductive foreign particles Abnormal voltage e g overvoltage surge thunder or unbalanced voltage order to replace the faulty inverter be sure to check for the points aforementioned 59000 178 Troubleshooting SiBE26 701 Diagnosis by Remote Controller 1 Power module checking When using the analog type of multiple When using the digital type of multiple tester make measurement in resistance tester make st in diode check measurement meg in the x1kQ range mode RE NE Criterion Remark T Criterion Remark Not less t may take time to than determine the voltage P Tv 2 to 15kQ v 1 2V due to capacitor ae including charge or else 4 U P3 Not less time to e w
193. refrigerant system be sure to collect refrigerant The refrigerant recovery procedure is as follows m RZQ200 250C Refrigerant recovery procedure 1 Stop operation 2 Confirm that both of liquid side stop valve and gas side stop valve are fully open 3 Push and hold the MODE BS1 button for 5 seconds or more gt Setting mode 2 4 Push the SET BS2 button to change the LED display to Refrigerant recovery mode 5 Push the RETURN BS3 button 6 Push the SET BS2 button to change the LED display to Electronic expansion valve fully open 7 Push the RETURN BS3 button twice 8 Collect refrigerant via the refrigerant recovery port and liquid stop valve service port or gas stop valve service port simultaneously using a refrigerant recovery unit TP ee per Ha mar HOP HR e e o o Lignon Electronic expansion valve e Light OFF fully open Refrigerant recovery port Liquid stop valve service port OLSD CO CO SS ee BD C DD Cc DD DD C5 D D DS DD DM Gas stop valve service port Troubleshooting SiBE26 701 Troubleshooting Based on Equipment Condition 2 Troubleshooting Based on Equipment Condition 2 1 Troubleshooting Based on Equipment Condition Equi
194. remote controller PC board if any error is generated Replace the remote control wire Turn the SS 1switch of one remote controller to Main Turn OFF the power supply and restart operation Troubleshooting SiBE26 701 Diagnosis by Remote Controller 4 41 JS Malfunction of Transmission between Indoor and Outdoor Units in the Same System Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 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 outdoor unit 165 Diagnosis by Remote Controller Troubleshooting SiBE26 701 AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Have 2 minutes and over passed since the U9 code was indicated YES NO Start operation of all the indoor units The UA code blinks in the remote controller of the other unit in the same refrigerant circuit NO YES
195. renanrnnnnennnnnnnnnnnanennnnrnnrnnanennnnennnnn 21 3 4 Remote Controller Service Mode eenmmHH ne 22 Part 4 Field Setting a BO 1 Field Setting of Indoor DIE siam aos ne toten eontra ibn estote oer 24 1 1 Field Setting from Remote Controller sess 24 1 2 Setting Contents and Code No SkyAir Indoor Unit 26 1 3 Detailed Explanation of Setting Modes esses 27 2 Field Setting of Outdoor Unit rrrrrnnnrnvnnrvnrnnnrvnnnrnrnnnrnranennnnnennnnnennnse 32 2 1 Field Setting from Remote Controller eeeeseeessssessss 32 2 2 Field Setting by Demand Adapter ccccssccccsseceeeeeeseeeeeseeeeseeeensaees 35 2 3 Field Setting from Outdoor Unit PC Board suus 38 3 Emergency Operation rrnnnnennnnennnnonannnrnnrrnanennanennnnennnnenanannansnnnsnnnnnen 44 3 1 Emergency Operation Forced Operation Setting Procedure 44 3 2 Test Operation Setting Procedure rrrnnrrnnnrnvnnnnnrvnnnennnnrennnnrnvnrennnnrnnnn 45 3 3 Emergency Operation When the Remote Controller is Lost 45 Table of Contents SiBE26 701 Part 5 Function and Operation erre rrr 7 T NOT VU 48 1 1 FONN ee 48 2 IT VNR 54 PN 54 2 2 Flow Chart of Outdoor
196. rge of capacitor Not possible to improve power factor by installation of phase advance capacitor Selection of leakage breaker Fin temperature increase Troubleshooting To replace the PC board assembly with service parts follow the procedure shown below Procedure 1 Disconnect all connectors and terminals connected to the PC board 2 Unfasten the screws that fix the plastic PC board box 3 Dismount the Inverter PC board assembly from the sheet metal part 4 Mount a new inverter PC board assembly to the sheet metal part Connect the connectors and terminals When replacing to a spare control PC board install a capacity setting adapter to meet the capacity The capacity is written in EPROM at factory but not in the spare control PC board During the compressor stops operating controls the electric discharge of capacitor In this case a noise may be heard while it is not an abnormal status Before conducting maintenance of the switch box turn off the power switch and make sure that the voltage between the capacitor terminals is 50 VDC or less If it is not possible to check the voltage wait for 10 minutes or more before servicing On standard models it was possible to increase the power factor by installing a capacitor On inverter models installation of a capacitor can damage the IGBT Be sure not to install a capacitor on inverter models Select a leakage breaker high harmonics high fr
197. roller Air THEMIS ae 118 Malfunction of Suction Air Temperature Sensor SEE EE 116 Malfunction of Swing Flap Motor 112 Malfunction of Thermistor System 136 Malfunction of Transmission between Indoor and Outdoor Unibet t i bea Ree ts 161 Malfunction of Transmission between Indoor Unit and Remote Controller 163 Malfunction of Transmission between Centralized Controller and Indoor Unit 170 Malfunction of Transmission between Indoor and Outdoor Units in the Same System 165 Malfunction of Transmission between Inverter and Control PC Board eeeeesss 151 Malfunction Stop Retry Control 61 Method of Operating Remote Controller 18 Model Name and Power Supply 4 Model SONOS ie cnn e dh e Lipa Eo Esas 1 Momentary Overcurrent of Inverter COmptreSsO r isse ter tod d de aera GR 145 Monitorning GOPIEOL use dre curb es eie Ili 52 O Oil Return Defrosting Operation etc 68 Operation TRarige ec ooo tpe Hes Poor ve mitevmuuo 72 Optimal Operation Condition 75 Outdoor Unit Detection Function 50 P m 154 Piping Connectors seeiee tete eee acne LE dett iuis 80 Pl 155 Possible Combinations and Standard C
198. roller SiBE26 701 Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred PB If A3 is detected by a PC board or which is not mounted with X15A the PC board is defective Is the short circuit connector connected to 15A on the indoor unit PC board M NO raising mechanism connected Short circuit connector connection Continuity check of short circuit connector Is there continuity Short circuit connector replacement Indoor unit PC board NO replacement Connect drain pump Is a drain pump connected to the indoor unit PC board YES Is the drainwater level abnormally high NO NO Does the drain pump turn after restarting operation YES Malfuncton of drain system YES Is the float switch connected to X15A YES Remove the float switch from E voltage of X26 ale ad X15A short circuit X15A and restart operation NO Froat switch connection Does display of malfunction A3 appear NO Float switch replacement Indoor unit PC board replacement 220 10 VAC Drain pump replacement Indoor unit PC board replacement 106 Troubleshooting SiBE26 701 4 5 AG Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting D
199. rt of remote controller PF a Part of Remote Controller Insert the minus screwdriver and twist lightly to remove The P C board is mounted in the upper part of remote controller Be careful not to damage the board with the minus screwdriver Minus screwdriver 2 Fasten the remote controller 1 For exposed mounting fasten with the included wood screws 2 Wood Screws 2 For flush mounting fasten with 93 5 x 16 the included machine screws 2 Switch Box Field supplied parts all f 7 Machine Screws M4 x 16 For the field supplied switch box use optional accessories KJB111A or KJB211A NOTE Choose the flattest place possible for the mounting surface Be careful not to distort the shape of the lower part of remote controller by over tightening the mounting screws S1019 Remote Controller SIBE26 701 Wired Remote Controller NOTE When wiring run the wiring away the power supply wiring in order to avoid receiving electric noise external noise 3 Wire the indoor unit Connect the terminals on top of the upper part of remote controller P1 P2 and the terminals of the indoor unit P1 P2 P1 and P2 do not have polarity Ind Unit i i B p di ad PE Notch the pan for the wiring to ass through with nippers etc eeeeeeeeee eeeeesese i i ia a Nor partioi S Wiring Specifications Wiring Type Sheathed vinyl code or c
200. s Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting LL RZQ 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 outdoor control PC board Defect of outdoor control PC board transmission section Defect of inverter PC board Defect of noise filter Faulty fan inverter Incorrect type of fan inverter Faulty compressor Faulty fan motor 151 Diagnosis by Remote Controller Troubleshooting 152 Caution Power ON Power OFF SiBE26 701 Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred transmission wire connectors X3A Black X4A Yellow wrongly connected NO YES Check whether or not the power supply voltage between L2 and N falls in the range of 220 to 240VAC NO YES s the type PC No of the fan inverter correct NO YES Disconnect the cable from the compressor and then check the compressor for the insulation resistance The insulation resistance is low i e not more than 100kQ YES Disconnect the cable from the fan and then check the fan motor for the insulation resistance The insulation resistance is low i e no more than 1MQ
201. s 110 Interlocked Operation between Humidifier and Drain Puma 31 Inverter Compressor Motor Lock 124 Inverter Compressor Overcurrent 147 Inverter Over Ripple Protection 154 J jos m 136 RT ERE 136 Je 136 drip EE 136 Jo 136 EE ED a 138 JE 140 L EN 142 EEE ET TEEN EE T 143 Bee 145 BOTTOM DENIS 147 Eo RR EE TE EN NIE 149 E E AEEA E PD EON 151 List of Electrical and Functional Parts 71 Low Noise Operation by External Input 36 Low Pressure System Malfunction 122 M Maintenance Inspections 75 Maintenance Mode Setting 19 Malfunction of Capacity Determination Device 114 Malfunction of Discharge Pipe Temperature 130 Malfunction of Drain Water Level System FOT VOC Lae 105 Malfunction of Field Setting Switch and Transmission ET EN EN 167 Malfunction of Heat Exchange Temperature Sensor SEE EE EN 115 Malfunction of High Pressure Sensor 138 Malfunction of Humidity Sensor System 117 Malfunction of Indoor Unit Fan Motor 107 109 Malfunction of Low Pressure Sensor 140 Malfunction of Moving Part of Electronic Expansion NGI Cy rr TH 128 Malfunction of Outdoor Unit Fan Motor 125 i SiBE26 701 Malfunction of Remote Cont
202. s disconnected Furthermore to use a multiple meter for measurement connect the probe of negative pole to Vcc and that of positive pole to GND 5 Gray C GND 4 Pink C Vec Measure the resistance 3 Orange O W values between Vcc and U V W and GND and U V W 2 Blue Cnn 1 Yellow O U Check on pulse input of position signal of fan inverter PC board 1 Disconnect the connector X2A while power supply OFF and operation OFF 2 Is the voltage between pins No 4 and 5 on X2A approx 15 V after power supply is turned on 3 Connect the connector X2A while power supply OFF and operation OFF 4 Check below conditions when the fan motor is rotated one turn manually under the condition of operation OFF after power supply is turned ON Are the pulse approx O V and 5 V generated 4 times between No 1 and 5 on X2A Are the pulse approx O V and 5 V generated 4 times between No 2 and 5 on X2A Are the pulse approx O V and 5 V generated 4 times between No 3 and 5 on X2A The condition 2 dose not appear Faulty PC board Replacing the PC board The conditions 4 do not appear Faulty hall IC Replacing fan motor of outdoor unit 5 Gray GND 4 Pink Vcc approx 15 V 3 Orange Position signal W 2 Blue Position signal V 1 Yellow Position signal U 173 Diagnosis by Remote Controller SiBE26 701 Check No 3 174 If the high pressure is abnormally high Conception Abnormally high pressure level is mostly caused
203. sed on the data transmission with INV Judge if the INV PC board type is correct based on the data transmission B Mismatch of the PC board types m Field setting error AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred s the type of the j NO Pre rd AAP Replace with the correct correct compressor inverter PC board A3P YES type of the fan NO inverter PC ne Replace with the correct P ec fan inverter PC board A4P YES Was the dip switch correctly set NO up when replacing the main Correctly set up the PC board dip switch A1P YES Is the lamp in preparation NO H2P on the main Correct the PC boardturned connection wires Replace the outdoor unit main PC board A1P 1 The types of compressor inverter PC board Corresponding models PC0509 1 RZQ200 250C 2 The types of fan inverter PC board Corresponding models PC0511 1 RZQ200 250C 155 Diagnosis by Remote Controller SiBE26 701 4 35 Ua Gas Shortage Malfunction Remote Controller Display Applicable Models Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting 156 UL NN RZQ Judge the malfunction based on the extent of opening the temperature at each position and the pressure of the electronic expansion valve In cooling m When low pressure
204. setting is PM 10 00 Factory setting is AM 8 00 Start time and End time must be regarded as a guide because they are estimated based on the outside air temperature Field Setting 37 Field Setting of Outdoor Unit SiBE26 701 2 3 Field Setting from Outdoor Unit PC Board The operation of BS buttons and DIP switches on the PCB main PCB A1P allows the confirmation and setting of various items Test 9 sist ti M g D d age ic time Low eman Main PC board Pag Erroro PU noise noise LED Display A1P M i h M ba h s 2 3 1 Function of Each Switch 38 BS buttons BS buttons Description No Name BS1 MODE Used to change the setting mode Setting mode 1 lt gt Setting mode 2 BS2 SET Used to change settings made by field setting BS3 RETURN Used to change settings made by field setting BS4 TEST Used to perform test operation available in the Setting mode 1 Used to perform forced defrosting operation or pump down operation EN ere available in the Setting mode 1 The first test operation after installation can be also performed by remote control B DIP Switches DIP DiPSwithes Setting item Description Al E DS1 4 ON Sets cooling heating settings during emergency OFF Factory setting Emergency operation ON operation DS1 2 Performs emergency operation OFF E a NM DS1 3 ON Setting of outside Controls by outside demand input
205. specifications Recommended cable sheathed vinyl cables or double core cables 0 75 1 25 mm Wiring length 100 mor less In order to prevent a malfunction separate from power cables J 2 2 2 Low Noise Operation by External Input External input enables low noise operation by restricting outdoor fan rotation speed and compressor operation frequency Use at night or other time when the load is small m Setting procedure 1 Turn ON the DIP Switch DS1 3 on the outdoor unit control PCB 2 Short circuit between the terminal blocks X801M and COM on the demand adapter Low noise operation is performed while being short circuited 3 Low noise level setting can be changed in the field setting with the remote controller as needed 4 Furthermore Required capacity prior can be selected in the field setting with the remote controller as needed Low noise level Mode Description Low noise level 1 Low noise level 2 Low noise level 3 DEG wn 3 2 1LNOPI COM Input signals and field wiring specifications are same as the specifications above 36 Field Setting SiBE26 701 Field Setting of Outdoor Unit B Image of Low noise operation by external input Required capacity prior set by remote controller If capacity precedence is set in Capacity precedence setting the fan speed will be increased according to the load of air conditioning when load is he
206. st be taken or an instruction The instruction is shown inside or near the symbol m After the repair work is complete be sure to conduct a test operation to ensure that the equipment operates normally and explain the cautions for operating the product to the customer 1 1 1 Caution in Repair 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 shook 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 outdoor unit Be sure to discharge the capacitor completely before conducting r
207. switch 81992 Troubleshooting SiBE26 701 Troubleshooting Based on Equipment Condition 2 5 After Equipment Shuts Down It cannot be Restarted for a While Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause m Overcurrent relay for compressor m Compressor protection thermostat m Overcurrent relay may act due to the following reasons Lower voltage of power supply Excess level of high pressure Insufficient size of power cable Malfunction of compressor m Compressor protection thermostat may act due to the following reasons Internal leakage of four way valve There is no difference between suction and discharge temperature Insufficient compression of compressor Incorrect refrigerant Faulty expansion valve Insufficient circulation of refrigerant Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn the operation switch ON and OFF then wait at ON side Does the unit start operation after 3 minutes Normal Unit is in 3 min standby mode Supply voltage is within NO 10 of specified Contact power company Is the discharge side of compressor hot after unit stop Check compressor size of power cable NO Check on the cause why through er gs overcurrent relay for correct compressor or compressor Refrigerant circuit y YES pr
208. switch on the operation outdoor PCB x x Techeck ke the dat est tion button of the Temperature is not Test Operation operation after pe installation work remote controller 4 times controlled Remote controller When the Push the Emergency transmission stops wireless remote Operation switch on the actuators including controller is lost indoor panel S and pump turn N Emergency Operation For the first operation after installation or the operation after main PCB replacement test operation forced cooling operation is always performed for 3 minutes Then the operation is automatically switched according to the setting 3 1 Emergency Operation Forced Operation Setting Procedure 1 Turn OFF the power 2 Switch the indoor PCB switch 881 from NORM normal to EMG emergency B Switch position NORM EMG NORM EMG lt FACTORY SET gt lt EMERGENCY OPERATION gt 3 Switch the outdoor PCB switch DS1 as follows oFF NO on or HEAT CooL HEAT B B iN Switch position lt FACTORY SET gt lt FORCED COOLING gt lt FORCED HEATING gt 4 When the power is turned ON operation is forcedly started Precautions 1 Before switching the switches be sure to turn OFF the power 2 When returning to normal operation return each switch to the original position after turning OFF the power 3 If the protective unit is actuated during emergency operation the operation stops once a
209. t control Malfunction Oil recovery operation Defrosting condition Thermostat OFF judgement Remote control Standby stop judgement starting judgement 4 way valve Thermostat OFF by ATrs operation OFF judgement changeover refer to outdoor unit item 2 4 3 2 judgement Malundion Defrost operation Thermostat OFF by outdoor temperature tede Oil recovery operation refer to outdoor refer to outdoor unit item 2 4 6 3 indication unit item 4 2 23 dni to outdoor unit item 24 6 2 Defrost ending Oil recovery operation judgement Pump down residual operation ending judgement 4 way valve refer to outdoor unit item 2 4 5 5 Restart standby refer to outdoor unit item 2 4 2 1 changeover Hot start control refer to indoor unit draft avoidance control 2542 56 Function and Operation SiBE26 701 Outdoor Unit 2 3 Table of Functions and Operations 2 3 1 Cooling 1 Control while Compressor is Stopped if Indoor unit fan Electronic expansion valve main Electronic expansion valve subcooling O Four way valve Solenoid valve for venting receiver gas Fr valve for hot Fr 3 minutes after the compressor stops Remarks While compressor is stopped i i Pressure equalization Restart standby Thermostat OFF standby In normal operation control before startup i i Pressure equalization Outdoor unit fan M1F Restart standby 0 Step 0 Step control before startu
210. t equipped Equipped ventilation setting by remote controller Field set selection for humidifier control Not equipped Equipped by humidity sensor d Notes 1 Settings are made simultaneously for the entire group however if you select the mode No inside parentheses you can 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 26 Field Setting SiBE26 701 Field Setting of Indoor Unit 1 3 Detailed Explanation of Setting Modes 1 3 1 Filter Sign Setting If switching the filter sign ON time set as given in the table below Set Time Mode No First Second Filter Specs Setting Code No Gode No Standard Long Life Ultra Long Life Filter 10 01 200 hrs 2 500 hrs 10 000 hrs Contamination Light 02 100 hrs 1 100 hrs 5 000 hrs Contamination Heavy 1 3 2 Ultra Long Life Filter Sign Setting When a Ultra long life filter is installed the filter sign timer setting must be changed It blinks based on the filter cleaning
211. te Absolute Absolute Absolute Pressure Pressure Pressure Pressure MPa MPa MPa MPa EC NE NE eee a ee NEM UM i6 2 80 ois 42 os i8 i37 48 293 0 oa i0 os 20 14s so 307 m om 8 os 2 15 82 32 om 6 os 2 em o 09 o 9 os M om 6 og 3 220 a os 8 to 38 23 82 Oo ee eel Troubleshooting SiBE26 701 Maintenance Inspections 1 3 Cautions in Handling New Refrigerant 1 3 1 Refrigerant and Refrigerant Oil While the performance of refrigerant R 410A is almost equivalent to that of refrigerant R 22 and R 407C its working pressure is approximately 1 4 times higher than them Therefore servicing and tools necessary for piping of them are different Refrigerant R 410A R 407C Pseudo azeotropic Non azeotropic Single Mixture refrigerant mixture refrigerant mixture Single refrigerant pcs ud 2 96MPa Gauge 2 11MPa Gauge 1 84MPa Gauge 1 3 2 Required Tools Special tools are required to carry out service work for the refrigerant circuit on units using the new refrigerant Select tools referring to the following table Compatibility Tm X Compatibility mne Pipe cutter Pipe cutter ee tool B Compatible and dividable Expander ee piping work Pipe bender Pipe bender po de The outside diameter of a l B Refrigeration oil for R 22 is Checking gas Gas leakage B Device for R 22
212. ted in the field setting the Automatic Operation Mode cannot be selected with the remote controller 1 3 9 Fan Speed Changeover when Heating 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 First Code No Second Code Ns LL Fan Speed 12 22 3 Set Fan Speed 1 3 10 Auto Restart after Power Failure Reset For the air conditioners with no setting for the function 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 factory 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 Setting Table First Code No Second Gode No Not automatic restart 12 22 5 02 Automatic restart factory setting 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 AN Caution 1 The air conditioner starts operation suddenly after power failure reset or the main
213. the SET BS2 button to set the LED display as shown in the table on the right Push the RETURN BS3 button to end setting Push the RETURN BS3 button again to start operation 0 74SPe 0 59SPe lt 0 74 Low pressure level Pe is displayed during operation 0 445Pe lt 0 59 LO o ow O O O 0 29SPe lt 0 44 Pe lt 0 29 09 e e o e 0 Upon the completion of operation Operation comes to an end after 30 O e e e e Q Q minutes The display of pressure level immediately before stop blinks This state indicates that operation stops when pressure level is 0 25 Mpa or less 5 When a prescribed amount of refrigerant is charged operation ends If charging is not completed in 30 minutes make this setting once again to start operation When the RETURN button is pushed during additional refrigerant charge operation operation stops 6 Remove the refrigerant charge hose and then fully open the liquid side stop valve Field Setting 41 Field Setting of Outdoor Unit SiBE26 701 42 m Setting of refrigerant recovery mode When a refrigerant recovery unit is connected on site to recover refrigerant fully open the expansion valve of the outdoor unit to help the recovery Work procedure 1 Stop operation 2 Turn ON refrigerant recovery mode by performing the following steps O ON e OFF 0 BLINK Operating procedure Push and hold the MODE BS1 button of Setting mode 1 for 5 seconds or more and set to Setting mode 2
214. tion Test Operation button for more than 4 seconds Service data can be obtained Malfunciton code history e Temperature data of various sections Service settings can be made e Forced fan ON Air flow direction volume setting Indoor unit settings can be made e Filter sign time Air flow direction e Others Field setting mode Service 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 e Malfunction codes e Indoor model code e Outdoor model code operation Thermostat is forcibly turned on mode Press Inspection Test Operation V0815 button once 18 Remote Controller SiBE26 701 Method of Operating Remote Controller 3 2 Maintenance Mode Setting 3 2 1 Service Data Confirmation Procedure MODE NO FIELD SET MODE UNIT NO No VORNE 5 FIRST Ul lon ES a 8 8 TT Ile gt ne JW DE 5 HE 2 s a SECOND CODE NO TUE FIRST CODE NO 1 27 a Eu 3 1 2 7 1 Enter the field set mode Continue to push the inspection test operation button for a minimum of 4 seconds 2 Enter the service mode After having entered the field set mode continue to pus
215. tion when the horizontal blade blows air downward Start condition e Horizontal blade is set to downward flow e Cooling operation compressor operation continues for A minutes SSI IT m ma Dew condensation prevention control Dry operation with horizontal air flow is carried out for one hour A d Note 1 When there is any change to heating fan modes airflow direction and operation ON OFF state during dew condensation prevention control this control is reset 2 1 For FAQ71 the air flow is 44 degrees downward from the horizontal direction 1 1 10 Anti freezing Control B Based on the judgment to prevent the indoor heat exchanger from freezing the thermostat is forcedly turned OFF Indoor unit heat exchanger Freeze prevention control temperature Te Reset after a continuous 10 minutes and cumulative 7C timer cleared after a continuous 10 minutes Cumulative timer cleared after a continuous 20 minutes 4 C The thermostat turns OFF after a cumulative 40 41 C minutes The thermostat turns OFF after a continuous 1 minute 39 after 8 minutes from startup 1 1 FHQ Only 1 1 11 Monitoring Control In case where the indoor unit fan is turned OFF while the cooling heating dry thermostat is OFF the thermistor cannot detect the air temperature even when the room temperature subsequently recovers and reaches the temperature to turn ON the thermistor because the indoor unit suction air thermistor is installed within the ma
216. tup COMM OM ua vicit pid tede ew aN 62 Swing Flap does not Move eeeeesese 97 T Table of Functions and Operations 57 Test Operation Setting Procedure 45 The INSPECTION TEST Button 18 Thermostat Control 5 oen Pia e ens 48 Transmission Error between Main Remote Controller and Sub Remote Controller 164 Transmission System Malfunction between Indoor and Outdoor Units eeusssee 172 Troubleshooting Based on Equipment COMCION EE DU 83 U S 156 gm ENE 157 Pee 158 GE M 161 163 UG 164 Qi EET NES 165 UA U tae shaded 167 glo 169 m ianaleass 170 EN 172 Ultra Long Life Filter Sign Setting 27 Using Conditions for Remote Controller TEN 49 W When the Remote Controller is Lost 45 Wired Remote Controller eesses 12 Wireless Remote Controller 16 Index SiBE26 701 Index SiBE26 701 Drawings amp Flow Charts A Abnormal High Pressure Level 120 Abnormal High Pressure Switch
217. uijp nbaJ ES 3JnssaJd JADA DM JnO 9A DA UolsuDdxa AIDA Uolsupdxa UO P23 5IuoJ 2a 3 JADA SA D D psu adid J3BUDUIX3 Da JOsz0ZH osz 30020284 86 IA DA piouajos AR d3AJ3234 18000 v aunssaJd U IH 187 Appendix SiBE26 701 iagrams D iping P In 2 2 Tw RZQ200 250C7Y1B o GVO6BCMLE LINN S00Q100 Josuas aJnssaJd MO ani JD IIdD JBUIDIJS JossaJduo YIJIMS aJnssaJd ubi 110 HO LVYVdIS AIDA pIOUa OS XO JADA Buyonbay aJnssaJd JOSUSS aJnssaJd ubip dS DADA DM JNOJ 9AJDA UolsUuDdxa SAIDA uosupdxa OPIS 3100142313 JADA BATDA 9284 IBY UD4 adid JABUDUIX3 4D H SA DA pious os D lt JAJA JAUID IS uoij2auuo2 34014 ulug pls Duidid ajiss uo uo JJod 21AJ S UJM SADA Cols V 0 DNIdid q I3ld 30Sz0Z4 OLG 300204 56 OM vo UOLCO LINN HOOANI ONidid Tid ONidid 134 MSONVHIXS 1V3H 4O00N LE EE OU RS DRM TE 3dd HENYE LINN HOOANI ONidid 13 ONidid Cals H3bBNVHJX3 I1V3H 8OOQNI Appendix 188 iagrams D iping P SiBE26 701 le 2 3 Trip RZQ200 250C7Y1B SVO6BCMLE LINA MOOCINI e e E EEE 4 T LINA 4000NI NL de 30020728 ozz 30020248 256 SN
218. uipped with individual remote controllers individual remote controllers is always O during one remote controller group control individual remote controller address display shows 0 regardless of actual address setting NO NO Troubleshooting 83 Troubleshooting Based on Equipment Condition 2 2 Equipment does not Operate Applicable Model Error Detection Method Error Generating Condition Possible Causes Troubleshooting 84 All models of SkyAir series Fuse blown or disorder of contact in operation circuit Faulty operation switch or contact point Faulty high pressure switch Faulty magnetic switch for fan motor Activation or fault of overcurrent relay for fan motor Faulty overcurrent relay for compressor Faulty compressor protection thermostat Insufficient insulation in electric system Faulty contact point of magnetic switch for compressor Malfunction of compressor AN Caution or parts damage may be occurred Is power Switch OFF or fuse for power switch blown NO YES Is there power failure NO Is Operation switch pressed repeatedly Is Operation lamp on LCD remote controller flashing NO YES Is thermostat changed and reset again NO Wireless remote controller Is operation lamp on indoor unit signal receiving section flashing YES NO Possibly faulty electric component SiBE26 701 Be sure to turn off
219. unction and Operation Part 5 Function and Operation hk MOT UN 48 11 Funcion DEMNING 48 A Odoo A E a 54 22 PUN ION LSP ERR ROREM 54 22 low Chartor Outdoor Unts a 55 2 3 Table of Functions and Operations eeeeseeeeeeeeeeeee 57 24 FUYINCION Detal sansene ete 61 3 List of Electrical and Functional Parts eem 71 SN ME P seem Ne 71 4 Operation RANGE ve see pecie E e tutior toe bo aa else ds 72 4 Operation ANS EIN I T EM 72 47 Indoor Unit SIBE26 701 1 Indoor Unit 1 1 Function Details 1 1 1 Thermostat Control Purpose Based on the information received from the air return sensor the thermostat control will decide the required operation status of the system Thermostat Control 48 16 17 18 19 20 21 22 23 24 25 26 277 2B 29 30 31 32 33 34 initial setting ME gl ie _ Cooling mode Set point Thermostat OFF 0 5 C Heating mode Set point j i ay 0 5 C Thermostat OFF Cool heat changeover in automatic mode Set point 2K Automatic cooling Automatic heating MENU ne Thermostat Control 81962 Function and Operation SIBE26 701 Indoor Unit 1 1 2 Using Conditions for Remote Controller Thermostat Applicable The remote control thermostat is only available in wired remote controls Method Unlike with VRV units the remote control sensor is standard disabled for
220. use synthetic oil e g ether oil ester oil alkylbenzene oil or their mixed oil as the refrigeration machine oil B For flaring for R 410A units the flare nut is changed from Class 1 Class 2 due to use of high pressure refrigerant Excessive fastening will result in cracks in the flare nut A mm IC Pipe A Game 64 8791 90 0127 162 166 0159 193 197 o 19 1 Reference 24 B For conventional flaring a protrusion allowance of 0 to 0 5 mm was provided for piping To respond to the R 410A refrigerant provide the allowance of 1 0 to 1 5 mm for the piping and then conduct flaring Only apply this method to the clutch type Specifications of flare nut B The flare nut for R 410A is also changed from Class 1 Class 2 due to use of high pressure refrigerant B Due to the change to Class 2 the flare nut outline of 615 9 mm is changed The fastening torque remains unchanged m Use the flare nut that comes with the product Nominal size 1 2 used for 12 7 mm piping Nominal size 5 8 used for 15 9 mm piping 1 3 5 Refrigerant Charge m Charge the new refrigerant in the liquid state through the service port of stop valve on the liquid side outdoor unit Conduct vacuum drying using vacuum pump and never conduct flushing during refrigerant charging Troubleshooting 81 Maintenance Inspections SiBE26 701 1 3 6 Air Tighteness Test 82 Refrigerant Recovery Method Before replacing parts of the
221. ush the inspection test operation button for a minimum of 4 seconds 2 Enter the maintenance mode After having entered the field set mode continue to push the inspection test operation button for a minimum of 4 seconds 3 Select the mode No Mode 43 44 or 45 Set the desired mode No with the up down temperature setting button 4 Select the unit No Select the indoor unit No set with the TIME MODE START STOP button 5 Carry out the necessary settings for each mode Mode 43 only possible for wireless remote controller e Incase of Mode 43 Press TIMER ON OFF BUTTON to decide the forced Fan ON e Incase of Mode 44 Set Fan speed with FAN SPEED CONTROL BUTTON and Air flow direction with AIR FLOW DIRECTION ADJUSTING BUTTON then press TIMER ON OFF BUTTON to decide e Incase of Mode 45 Select the changed unit No with or button then press TIMER ON OFF BUTTON to decide 6 Return to the normal operation mode Tap the inspection test operation button one time Content and Operation Method Example of Remote Controller Display No Ag Fan Turns the fan ON for each unit unit No JET individually C T0 SETTING 81955 Individual Sets fan speed and air flow Setting direction for each unit individually when using group control Settings are made using the air flow direction adjust and fan speed adjust buttons Unit No Changes unit No Change Set the unit No after changing with the programmin
222. ve home is enabled FLASHING Leave home is disabled 8 EXTERNAL CONTROL ICON C4 This icon indicates that another controller with higher priority is controlling or disabling your installation 9 CHANGE OVER UNDER CENTRALISED CONTROL ICON This icon indicates that the change over of the installation is under centralised control assigned to another indoor unit or optional cool heat selector connected to the outdoor unit master remote controller 10 DAY OF THE WEEK INDICATOR KONTUE WED TH FRI SAT SUN The day of the week indicator shows the current week day or the set day when reading or programming the schedule timer 11 CLOCK DISPLAY 25 28 The clock display indicates the current time or the action time when reading or programming the schedule timer 12 Remote Controller SiBE26 701 Remote Controller Wired Remote Controller 12 MAXIMUM SET TEMPERATURE ag The maximum set temperature indicates the maximum set temperature when in limit operation 13 MINIMUM SET TEMPERATURE gg 7 The minimum set temperature indicates the minimum set temperature when in limit operation 14 SCHEDULE TIMER ICON This icon indicates that the schedule timer is enabled 15 ACTION ICONS 1 2345 These icons indicate the actions for each day of the schedule timer 16 OFF ICON OFF This icon indicates that the OFF action is selected when programming the schedule timer 17 INSPECTION REQUIRED amp and amp These icons indicate that insp

RZQ200 · 250C7Y1B R-410A Heat Pump 50Hz

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RZQ200 &middot; 250C7Y1B R-410A Heat Pump 50Hz

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RZQ200 · 250C7Y1B R-410A Heat Pump 50Hz