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Service Manual - H-Tec

1. back of the motor when reassembling So as not to be entangled with the propeller fan R2697 134 Removal Procedure Si06 313 Outdoor Unit 2 3 Removal of the PCB Electrical Box Procedure AN Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points m Remove the top panel and the front panel 1 Remove the right side Terminal strip board panel 1 Disconnect the three connection wirings and the two earth wires R2698 2 Loosen the three screws of the right side rT panel Right side AN panel gt 2 A AN ei Z A y 3 Loosen the fixing screw of the electrical box Poo ME R2700 Terminal strip number black 1 power supply white 2 power supply red 3 transmission yellow green 4 ear
2. Drip proof plate Ru R2622 m Mounting screw M4 x 8 119 Removal Procedure Indoor Unit Si06 313 Step Procedure Points 7 To remove the electrical box dismount the two fixing screws a and pull out the box gt forward E Pr gt m Mounting screw M4 x 16 R2623 Illustration shows parts in the electrical box LED A Green lard LED B Green R2624 120 Removal Procedure Si06 313 Indoor Unit 1 4 Removal of the PCB Procedure AN Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Dismount the fixing screw to remove PCBs from the electrical box Power supply PCB m Display PCB Home Leave Control PCB Operation lamp Timer lamp Operation lamp R2625 Main unit ON OFF switch Signal receiving section R2626 2 Illustration shows the control PCB indoor S S25 302 301 unit SE 2Pd88265 1 R RO 302 B 301 n RI 0 Y A AE a dek PJ F DE 52 i 2 e P ei ke Ga czs tet E 082 cet E E y EES ea 3 yaa aen E
3. E RS 1 E E E E a aay wei e FU201 a RED i i Pl GRN cH 3 T5A lo MIF y CS YLW PRN ai Siy WN 1 i R DER C E edd Bei eege ear 30A w X11A 1 I HBL HE U i 1 WH U evner N l HRED BLUS N Il 1 4 e BRN lt BRN 4 EE 1 Soan 10 Di TO dee UNIT TEE Me l 3 l RED ZO z gt 3lxx 2 cu 34 5 2a I e o oc gt 1 I fonteto HH i I 101 4 N a 533 s40 i SI oe ce cise POWER SUPPIYL______ 50Hz 220 240V a l 60Hz 220 230V i KS i FIELDWIRING indoor r I 1952 5 S200000 R3 Em saw outdoor OUTDOOR DISCHARGE i 1 CONDENSER I Keen ee Kee Ee le e te A SE E cs e ad a e Ee ps EE ee 4 Z1C Z2C FERRITE CORE S2 S102 CONNECTOR Q1L OVERLOAD PROTECTOR X1M TERMINAL STRIP LEDA PILOTLAMP CT CURRENT TRANSFORMER Y2E ELECTRONIC EXPANSION VALVE PCB1 PCB2 PRINTED CIRCUIT BOARD MID MOLDED INTER CONNECT DEVICE V2 V5 VARISTOR L VE SPM SYSTEM POWER MODULE FU1 FU2 FU201 FUSE N NEUTRAL ASSIGNMENTS OF HE1 HE2 HACI S1W FORCED OPERATION ON OFF SW SW TERMINALS OF THE COMP E AC1 AC2 S4W LOCAL SETTING SW SW4 U H1 H2 HL SA1 SURGE ARRESTER vN 11 L2 X11A CONNECTOR DB1 DIODE BRIDGE MRM10 MRM20 M1C COMPRESSOR MOTOR Ww MRC W MAGNETIC RELAY M1F FAN MOTOR 35037866D R1T R3T THERMISTOR LIR REACTOR RXS50BVMB RXS50BVMA F tlie esst Wooo eee
4. Sound blanket side inner R2733 sound blanket side outer are torn easily remove the blanket carefully m Since the piping ports on the sound blanket side inner are torn easily remove the blanket carefully 146 Removal Procedure Si06 313 Outdoor Unit 2 6 Removal of the Four Way Valve Procedure AN Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Loosen the screw of the m Provide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries m Be careful so as not to break the pipes by pressing it excessively by pliers when withdrawing it A Caution SM G Be careful about the four way A j valve pipes and so on which F R2734 Four way valve coil were heated up by a gas 2 Heat up the brazed part brazing machine so as not to of the four way valve get burnt your hands and disconnect four way valve coil S Four way valve Cautions for restoration 1 Restore the piping by non oxidation brazing Braze it quickly when no nitrogen gas can be used 2 Itis required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat For the sake of this wrap the four way valve with wet cloth and provide water so that the cl
5. R2718 oe 1 Ga D ANO LY R2719 Removal Procedure 141 Outdoor Unit Si06 313 Step Procedure Points 1 o Release the clamp of the four way valve harness Lift the electrical box and remove it 142 Removal Procedure Si06 313 Outdoor Unit 2 4 Removal of the Reactor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points m Remove the electrical box 1 Remove the partition plate 1 Release the clamp by pliers R2722 2 Loosen the two screws of the partition plate m The partition plate is fixed to the bottom frame with a claw R2724 Removal Procedure 143 Si06 313 Outdoor Unit Di 2 o a E DN N N E ZS oO o be A o h 3 TEDI Q LEZ o AS 8 a o o S S a es ZS Cc D oO zi A Fa D SOE o ZS o SS CG om OO E amp o e Cc o a Eo E om 2 o SS e noo os O DET C o gt o o I o o E o 2 2 0 lt Oo Removal Procedure 144 Si06 313 Outdoor Unit 2 5 Removal of the Sound Blanket
6. EE RED l E M1F BLU tT Se Bi Mag tio WHT 1 xa MIC 1 l FH BLU RED U i 1 w opus N l SHREDS Mee BLUSH i i OH BRN lt BRN L y EU2 L TO INDOOR UNIT 3 15A d i HA I i I dE K 7 10 1 i g 33 s40 ol PCB1 S6 eo000000 K CC o oan x 1 20 4 590 50Hz 220 E S 60Hz 220 230V 63 S80 oo i oa ee xx ESOIZO AZ FIELD WIRING 9 aa Sane Hasta indoor i d e l o q er a ROTROTRIT outdoor OUTDOOR DISCHARGE l 1 CONDENSER f Me Se o E p A lte et gd Eea Da ee ee o de e Edi Zeie Site Eet ee E J Z1C Z2C FERRITE CORE S2 S102 CONNECTOR L1R REACTOR X1M TERMINAL STRIP LEDA PILOTLAMP Q1L OVERLOAD PROTECTOR Y2E ELECTRONIC EXPANSION VALVE PCB1 PCB2 PRINTED CIRCUIT BOARD CT1 CURRENT TRANSFORMER V2 V5 VARISTOR L UNE MID MOLDED INTER CONNECT DEVICE FU1 FU2 FU201 FUSE N gt NEUTRAL SPM SYSTEM POWER MODULE ASSIGNMENISOF HE1 HE2 HACI S1W FORCED OPERATION ON OFF SW SW1 TERMINALS OF THE COMP E AC1 AC2 S4W LOCAL SETTING SW SW4 U H1 H2 HL SA1 SURGE ARRESTER dech 11 L2 X11A CONNECTOR Y1R REVERSING SOLENOID VALVE COIL MRM10 MRM20 DB1 DIODE BRIDGE Ww MRC W_ MAGNETIC RELAY M1C COMPRESSOR MOTOR E R1T R3T THERMISTOR M1F FAN MOTOR Appendix 159 Wiring Diagrams Si06 313 160 Appendix Si06 313 Numerics Cch ck No DEE 111 E 71 Check No 13 coococacacacanannnacanannncnnorancnana naar ac acaracasas 111 3 minutes stand by ATA oo co a e
7. f Air Purifying Filter with Bacteriostatic o O Operation Limit for Cooling CDB a ae Virustatic Functions Basic 4 4 Function Operation Limit for Heating CWB ae a Photocatalytic Deodorizing Filter O O Air Purifying Filter with Photocatalytic PAM Control Q 2 Deodorizing Function Oval Scroll Compressor Health amp Longlife Filter Swing Compressor O O Ultra Longlife Filter Option Compressor SR Rotary Compressor gem Mold Proof Air Filter O O Reluctance DC Motor O O Wipe clean Flat Panel Power Airflow Flap Washable Grille O O Power Airflow Dual Flaps Filter Cleaning Indicator Power Airflow Diffuser Good Sleep Cooling Operation Comfortable Wide Angle Louvers O O Ti 24 Hour On Off Timer O O imer Airflow Vertical Auto Swing Up and Down O O Night Set Mode O O Horizontal Auto Swing Right and Left Auto Restart after Power Failure O O 3 D Airflow Worry Free Self Diagnosis Digital LED Display O O 3 Step Airflow H P Only O O Reliability A Wiring Error Check Durability Auto Fan Speed O O Anticorrosion Treatment of Outdoor o o Indoor Unit Silent Operation O O Heat Exchanger Night Quiet Mode Automatic ll Multi Split Split Type Compatible lo Comfort Outdoor Unit Silent Operation Manual O O Indoor Unit Control Intelligent Eye A e ara Flexible Voltage Correspondence O O exibili Quick Warming Function O O High Ceiling
8. Refer to P 110 Check the continuity of the four way valve coil and harness I Disconnect the harness from the connector Resistance between harnesses about 1500 ohms y YES Check No 5 Check the four way valve switching output Functioning Any thermistor disconnected TNO Check No 6 Check the thermistors Functioning Check No 11 Check the refrigerant line Functioning NO gt Reconnect gt Replace the four way valve Malfunctioning coil YES Replace the outdoor unit PCB Malfunctioning gt Reconnect in position Replace a defective Malfunctioning thermistor e Insufficient gas e Water mixed e Stop valve defective gt Refer to the refrigerant line check procedure gt Replace the four way valve defective or dust clogged R2845 86 Service Diagnosis Si06 313 Troubleshooting 4 13 Discharge Pipe Temperature Control Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Check No 4 Refer to P 105 Check No 6 Refer to P 107 Check No 11 Refer to P 110 FJ The discharge pipe temperature control stop frequency drooping etc is checked with the temperature being detected by the discharge pipe thermistor m Ifa stop takes place 6 times successively due to abnormal discharge pipe temperature
9. The louvres made of elastic synthetic resin provide a wide range of airflow that guarantees a comfortable air distribution right and left manual upper air outlet lower air outlet The following table explains the auto swing process for heating cooling dry and fan up and down automatic R3031 heating cooling dry fan upward air flow limit Hl le amp OFF ER e Ze R3029 R3030 upward air flow Wm S on 2 Sp R3032 Function and Control Si06 313 Main Functions 1 3 Fan Speed Control for Indoor Units Control Mode The airflow rate can be automatically controlled depending on the difference between the set temperature and the room temperature This is done through phase control and hall IC control For more information about hall IC refer to the troubleshooting for fan motor on page 75 Phase Steps Phase control and fan speed control contains 9 steps LLL LL SL L ML M MH H and HH Step Cooling Heating Dry mode LLL Heating thermostat OFF LL Cooling thermostat OFF SL Silent L 50 60 71kW class ML 750 1000 rpm During powerful operation M 1050 rpm MH H R2818 R2818 HH Powerful O Within this range the airflow rate is automatically controlled when the FAN setting button is set to automatic H Note 1 During powerful operation fan operates H t
10. 22 detrosticontrOl earns sts SOSS ENEE 35 discharge pipe temperature control 32 87 O discharge pressure check 109 OL activation compressor overload 80 display POB uo bas 11 ON OFF button on indoor unt 25 operation lamp location ooooooocccnnnnicccccnnnnancccnnnnnnos 68 E outdoor unit fan system check with DC motor 109 electrical box temperature tee 93 output over current detection eseese 97 electronic expansion valve check 105 electronic expansion valve Control 36 P piping diagrams F FVKS50BVMB coocococccccocccononcnnnnncnnnnncn naar canannco 156 fan motor DC motor or related abnormality 75 FVXS5OBVMB ira riening uts tatoa aaronii 156 fan motor connector output check 104 RKSSOBVMB dcccococcccnocccconcccnnnnccnanncnranccanannnnos 157 four way valve abnormalgv A 85 RSSOBV MBit ites sinew anaes 157 four way valve performance check 106 RXS50BVMA cocccococcccnoncccnnncnnnnncnnan cnn ranncanannnnos 157 freeze up protection Control 33 RUE EE 157 freeze up protection control or high pressure position sensor abnormality eeceeeeeeeeeeeees 88 A A seuss EE ee 73 power supply PCB indoor unit ceceeeeeee 10 frequency Control 29 power supply PCB outdoor unit ooooocnnocccccnncccnno 13 frequency principle oooconccccccnnnoccconnnancnccnnnnnnnncnns 16 power supply waveforms check 110 power transistor check oocononocccnnnnccccccnnccnn
11. A Warning Ventilate when refrigerant leaks during the work If refrigerant contacts fire it will cause to arise toxic gas m Provide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries m Be careful so as not to burn the compressor terminals or the name plate m Be careful so as not to burn the heat exchanger fin A Warning Since it may happen that refrigeration oil in the compressor will catch fire prepare wet cloth so as to extinguish fire immediately 150 Removal Procedure Si06 313 Part 8 Others O dal ala ct a ated ah ok Jaa ea 152 1 1 Test Run from the Remote Controller ccccceesecccececcvecceneeecneeeennees 152 1 2 J mper Settings eege eet eege peaks cadets eege ee ee as a 153 Others 151 Others Si06 313 1 Others 1 1 Test Run from the Remote Controller For Heat pump In cooling mode select the lowest programmable temperature in heating mode select the highest programmable temperature m Trial operation may be disabled in either mode depending on the room temperature m After trial operation is complete set the temperature to a normal level 26 C to 28 C in cooling mode 20 C to 24 C in heating mode m For protection the system disables restart operation for 3 minutes after it is turned off For Cooling Only Select the lowest programmable temperature m Trial operation in cooling mode may be disabled depending o
12. Procedure AN Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Disconnect the harness of each thermistor 2 Release the discharge pipe thermistor m Pay attention to the direction of the clip so as not to touch the lead wire of the thermistor when reassembling AR SE Lal Discharge pipe thermistor R2728 3 Cut the clamp by m Clamps should be always Ii available nippers E S Disconnectthe outdoor ADN E Fix it as it was before D heat exchanger H a NS N thermistor ES Outdoor heat exchanger thermistor R2729 Removal Procedure 145 Outdoor Unit Si06 313 Step Procedure Points 4 Remove the sound m Since the piping ports on the blanket side outer Remove the sound blanket top upper Remove the sound blanket top lower Remove the sound blanket side inner A A AO A Sound blanket top upper R2730 Sound blanket top lower
13. 77 Check NO 09 secs a EEN SNE 109 Ee E toes Sees E Pensa 80 checkNoip nn nn nana 110 Ei A A A e 81 Check NOT toa a EEN AEN da edito e Lo 110 E toda SE add 82 Index i Si06 313 Elan ota kia o 83 hallan o Dana 19 75 E caidas 85 HE da 12 137 e EE dcda cla 87 al 12 137 O aee 102 heat exchanger cccccoconccccccccccncncconananannnnncnnnnos 124 127 RL 88 heat exchanger thermistor 26 27 77 92 119 145 RE 89 heating peak cut Control 33 BEL ege ET teen e Ed geb ege EN high pressure Control 73 EE 91 high pressure control in cooling 102 Vlad ee dote 2 91 EEN 12 137 Ee EE au eeisvndes daeaeiadvevagulanzeiesdmicnesde viele 93 Home Leave operation 23 57 dianas 95 horizontal blade AA 117 Eras 97 hot Start functon cnc 25 PA ita ae seba vale eds 91 A E E 99 l O 101 indoor unit PCB abnormality ooooocccnnccconacccccanccccno 72 WA ETE IEE EE E AE 79 input Current Control 32 error codes and descrpoton 71 input over current detechon 83 installation Condition check A 108 F insufficient gas ea cta 99 Ot ia 87 insufficient gas Control 39 Oi in cis ee EE E AE 102 inverter powerful operatton 24 ancora aia 34 inverter principle oooooccncnnnnnccccnnnnocccnnnnancncnnn nano nncns 16 El Bu le 133 inverter units refrigerant system check 110 fan motor DC motor or related abnormality 75 fan motor connector output check 104 J TaN MOOS TA 126 E E EE E EN fan Speed Control 19 Vii tl dls
14. Caution or parts damage may be occurred Any thermistor JES Reconnect in position disconnected Discharge pipe thermistor SE Indoor outdoor unit heat exchanger thermistor Y NO Room temperature thermistor Outdoor air thermistor YES Stop valve closed gt Open the stop valve TNO Check for gas leakage Oil oozing at relay pipe Repair the pipe flare or connections p pip replace the square union YES Oil oozing at internal piping NO Check the power transistor harness for looseness Correct it as required Also replace cracked pipe if any Compressor vibrating too much Check No 4 Electronic expansion valve functioning gt Check the pipes for improper contact Correct as required Also replace cracked pipe if any Replace the electronic oo expansion valve Malfunctioning P Check the CT gt CT in trouble refer to H8 Functioning Change for a specified amount of fresh refrigerant YES Gas shortage error again Replace the room temperature or outdoor air thermistor or the indoor unit or outdoor unit heat exchanger thermistor Malfunctioning NO Check No 6 Check the thermistors Functioning 1 Replace the PCB 2 Replace the compressor gt Procedure complete R2853 100 Service Diagnosis Si06 313 Troubleshooting 4 21 Low
15. Check No 13 Refer to P 111 b Monitor the supply voltage Error again discharge and suction pressures and other factors for a long term y YES Possible causes e Instantaneous supply voltage Turn off the power and disconnect drop Keep on using as it is the harnesses U V and W e Compressor motor overloaded monitor e Contact induced electrical short Check the electricals circuit connectors and other Y fittings Check with the inverter checker Inverter checker Part No 1225477 YES Any LED off gt Correct the power supply or replace the SPM Replace the outdoor unit NO PCB Check No 13 Check the power transistor NO Normal Replace the SPM Replace the outdoor unit PCB YES Turn off the power and reconnect the harnesses Turn on the power again and get restarted Y Check the supply voltage NO Voltage as rated gt Correct the power supply Short circuit or breakage between compressor s coil phases YES Replace the compressor Check No 8 Check the discharge pressure Check No 7 Check the installation condition R2852 98 Service Diagnosis Si06 313 Troubleshooting 4 20 Insufficient Gas Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes nm LI Gas shortage detection A gas shor
16. Control when frequency changed Control for defrosting only for heat pump model Control when a discharge pipe temperature is abnormally high Control when the discharge pipe thermistor is disconnected Feedback Control 1 Discharge pipe temperature control om bro Detail The followings are the examples of control which function in each mode by the electronic expansion valve control Operation pattern When power is turned ON O function x not function Control for abnormally high discharge Control when frequency changed pipe temperature Fully closed when power is turned ON Y Cooling operation Open control when starting Control of target discharge pipe temperature Y Stop Pressure equalizing control Y Heating operation only for heat pump model Open control when starting Control of target discharge pipe temperature Defrost control FD 1 Y only for heat pump model Stop Pressure equalizing control Y Heating operation only for heat Open control when starting y pump model Control of discharge pipe thermistor disconnection Continue Y Stop Pressure equalizing control R2833 36 Function and Control Si06 313 Control Specification 3 12 1 Fully Closing with Power ON Initialize the electronic expansion valve whe
17. again with the settings which were used HOME LEAVE i before POWERFUL operation a gt OONOFF When using POWERFUL operation TEMP 0 1 2 there are some functions which are not rl S available MODE FAN Gau E To cancel POWERFUL SILENT operation 2 Press POWERFUL button 9 in a again TIMER NOTE E Notes on POWERFUL operation e In COOL and HEAT mode To maximize the cooling heating effect the capacity of outdoor unit must be increased and the air flow rate be fixed to the maximum setting The temperature and air flow settings are not variable e In DRY mode The temperature setting is lowered by 2 5 C and the air flow rate is slightly increased e In FAN mode The air flow rate is fixed to the maximum setting 14 System Configuration 55 Instruction Si06 313 2 7 OUTDOOR UNIT SILENT Operation I OUTDOOR UNIT SILENT Operation OUTDOOR UNIT SILENT operation lowers the noise level of the outdoor unit by changing the frequency and pain fan speed on the outdoor unit This function is conve Y nient during night E To start OUTDOOR UNIT SILENT operation 1 Press SILENT button OME LEAVE E To cancel OUTDOOR UNIT Elo SILENT operation y C 2 Press SILENT button again MODE FAN GMO SILENT K CANCEL TIMER 1 2 NOTE E Note on OUTDOOR UNIT SILENT operation e This function is available in COOL HEAT and AUTO modes This is not available in FAN
18. An output over current is detected by checking the current that flows in the inverter DC section A position signal error occurs while the compressor is running A speed error occurs while the compressor is running An output over current input is fed from the output over current detection circuit to the microcomputer The system will be shut down if the error occurs 16 times Clearing condition Continuous run for about 5 minutes normal Over current due to defective power transistor Over current due to wrong internal wiring Over current due to abnormal supply voltage Over current due to defective PCB Error detection due to defective PCB Over current due to closed stop valve Over current due to compressor failure Over current due to poor installation condition Service Diagnosis 97 Troubleshooting Si06 313 Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred An output over current may result from wrong internal wiring If the wires have been disconnected and Check No 7 reconnected for part replacement for example and the system is interrupted by an output over current Refer to P 108 take the following procedure s Stop valve fully open gt Fully open the stop valve Check No 8 Refer to P 109 YES Turn off the power and turn it on again to get the system started See if the same error occurs
19. Outdoor Unit Si06 313 Step Procedure Points m The front grille has four claws Slide the discharge grille upwards and remove it R2679 3 Loosen the six screws of the front panel 4 Push the front panel and undo the claw Lift the clamp plate and remove it Lift upwards 128 Removal Procedure Outdoor Unit Si06 313 Step Procedure Points 5 Undo the right side m Lift the front panel and claw and then the left side claws Remove the front panel R2683 R2684 remove it while pushing the right side panel inwards the left side claws m Fit the left side of the front panel first when installing m Lift the front panel and undo Removal Procedure 129 Outdoor Unit Si06 313 Step Procedure Points 2 Remove the stop valve cover 1 Loosen the screw of the stop valve cover TES 2 Pull down the stop valve cover to undo the claws a
20. to S102 of the service monitor PCB S31 S71 S33 S32 H2 blue H1 yellow R2712 Fu2 3 15A 250V A iy SA l lu d A SE E HON oO ans pas s10 S SECH ig 33 Ke j p i N i ds 871 Bee E ES Hs o o ass s S80 S51 S101 S20 S90 S40 S91 R2713 Removal Procedure 139 Outdoor Unit Si06 313 Step Procedure Points 11 Disconnect the relaying wire connector for the 3 compressor AMS El A n gt VI ASS HEN 12_ Release the clamp by pliers R2715 13 Disconnect the reactor harness R2716 140 Removal Procedure Si06 313 Outdoor Unit Step Procedure Points 14 Pull the clamp and draw the thermistor harness out from the back of the electrical box 15 Loosen the screw of the electrical box ANN tT TT A WL Tw
21. 0 9 5 3 4 8 Capacity Btu h 16 390 3 070 18 090 16 390 kcal h 4 130 770 4 560 4 130 Moisture Removal Un 2 9 2 9 Running Current A 75 7 5 Power Consumption Ww 1 700 450 2 350 1 700 Power Factor 98 6 98 6 COP W W 2 82 2 82 S Liquid mm 4 6 4 o 6 4 Piping ion Gas mm 912 7 9127 Drain mm 4 20 0 4 20 0 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Indoor Unit FVKS50BVMB FVKS50BVMB Front Panel Color Almond White Almond White H 10 8 381 10 8 381 m min M 9 2 325 9 2 325 Air Flow Rate ofm L 7 7 272 7 7 272 SL 6 7 237 6 7 237 Type Cross Flow Fan Cross Flow Fan Fan Motor Output W 14 14 14 14 Speed Steps 5 Steps Silent and Auto 5 Steps Silent and Auto Air Direction Control Right Left Horizontal and Upward Right Left Horizontal and Upward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current A 0 26 0 26 Power Consumption W 55 55 Power Factor 92 0 92 0 Temperature Control Microcomputer Control Microcomputer Control Dimensions HxWxD mm 600x650x195 600x650x195 Packaged Dimensions HxWxD mm 714x770x294 714x770x294 Weight kg 13 13 Gross Weight kg 19 19 Ge eg H M L SL dBA 44 40 36 33 44 40 36 33 Sound Power H dBA 56 56 Outdoor Unit RKS50BVMB RS50BVMB Casing Color Ivory White Ivory White Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type Compressor Model 2YC32HXD 2YC32HXD Motor Output W 1 500 1 500 Refrigerant Model FVC50K F
22. 313 Part 5 System Configuration 1 System EE 42 Ze INSU CUON EE 43 Zeb Safety Precautions EE 43 22 Names Ol EE 45 2 3 Preparation before Operation 48 2 4 AUTO DRY COOL HEAT FAN Operation oocccoooccccononcccnnnnocccccnnnanccnnnnns 51 2 5 Adjusting the Air Flow Direction AAA 53 260 POWERFUL Operation carr OA 55 2 7 OUTDOOR UNIT SILENT Operation 56 2 8 HOME LEAVE KEE c n aie acted eee EE 57 2 9 TIMER Operatii seze treere A E E 59 2 10 Care and Cleaning EE 61 2 11 TFOUDIESMOOUING DEE 64 System Configuration 41 System Configuration Si06 313 1 System Configuration After the installation and test operation of the room air conditioner have been completed it should be operated and handled as described below Every user would like to know the correct method of operation of the room air conditioner to check if it is capable of cooling or heating well and to know a clever method of using it In order to meet this expectation of the users giving sufficient explanations taking enough time can be said to reduce about 80 of the requests for servicing However good the installation work is and however good the functions are the customer may blame either the room air conditioner or its installation work because of improper handling The installation work and handing over of the unit can only be considered to have been completed when its handling has been explained to the user without using technical terms but giv
23. 9 MN Be sure to turn off power switch before connect or disconnect connector Caution Check No 6 Check the air passage Refer to P 107 Is there any YES or parts damage may be occurred short circuit L NO Check the intake air filter gt Provide sufficient air passage gt Clean the air filter Check the dust accumulation on the indoor unit heat exchanger YES gt Clean the heat exchanger NO Check No 6 Indoor unit heat exchanger thermistor check YES Does it conform to Replace the indoor unit PCB the thermistor characteristic chart gt Replace the thermistor replace the indoor unit PCB R1401 il Note If the outside temperature is below 10 C in the cooling mode the system may get interrupted with error A5 displayed The system will be reset itself but this stop will be put in the error history memory 74 Service Diagnosis Si06 313 Troubleshooting 4 4 Fan Motor DC Motor or Related Abnormality Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Ab The rotation speed detected by the hall IC during fan motor operation is used to determine abnormal fan motor operation When the detected rotation speed is less than 50 of the H tap under maximum fan motor rotation demand Operation halt due to short circuit inside the
24. C operating rooms R1382 H Note Drooping The system stops 2 minutes after staying in the drooping zone 3 11 Defrost Control Outline Heat Pump Only Defrosting is carried out by the cooling cycle reverse cycle The defrosting time or outdoor heat exchanger temperature must be more than its fixed value when finishing Detail Conditions for Starting Defrost The starting conditions must be made with the outdoor air temperature and heat exchanger temperature Under the conditions that the system is in heating operation 6 minutes after the compressor is started and more than 44 minutes of accumulated time pass since the start of the operation or ending the defrosting Conditions for Canceling Defrost The judgment must be made with heat exchanger temperature 4 C 12 C PI control Frequency 120sec 60sec 460 sec 45sec La so e a ON Compressor OFF ON Four way valve OFF ON Fan OFF Electronic expansion 450pps 450pps 450pps valve opening Initial opening R2832 Function and Control 35 Control Specification Si06 313 3 12 Electronic Expansion Valve Control Outline The following items are included in the electronic expansion valve control Electronic expansion valve is fully closed 1 Electronic expansion valve is fully closed when turning on the power 2 Pressure equalizing control Open Control Electronic expansion valve control when starting operation
25. Hz for 20 seconds or a frequency of above 160 Hz 40 seconds after the compressor has started the position detection circuit detects a compressor frequency of above 180 Hz The system will be shut down if the error occurs 16 times Clearing condition Continuous run for about 5 minutes normal m Compressor locked Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn off the power Disconnect the harnesses U V and W Y Check with the inverter checker NO Inverter checker Part No 1225477 Correct the power supply or YES Turn off the power and reconnect the harnesses Turn on the power again and get the system restarted Emergency stop YES replace the SPM Replace the outdoor unit PCB without compressor running System shut NO gt Replace the compressor Check the electronic down after errors repeated several times expansion valve Replace it as required gt Replace the compressor R2842 Service Diagnosis 81 Troubleshooting Si06 313 4 10 DC Fan Lock Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Check No 15 Refer to P 112 El A fan motor or related error is detected by checking the high voltage fan motor rom being detected
26. J3 is judged if the discharge pipe thermistor temperature is smaller than the condenser thermistor temperature Connector in poor contact Thermistor defective Outdoor unit PCB defective Indoor unit PCB defective Condenser thermistor defective in the case of J3 error outdoor unit heat exchanger thermistor in the cooling mode or indoor unit heat exchanger thermistor in the heating mode Service Diagnosis 91 Troubleshooting Si06 313 Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check No 6 Refer to P 107 Turn on the power again Error displayed again NO Reconnect on remote controller YES YES Connector or thermistor disconnected y NO Check No 6 Check the thermistor resistance value NO Reconnect Normal YES Check No 6 Check the indoor unit heat exchanger thermistor resistance value in the heating mode Indoor unit NO Replace defective one s of the following thermistors e Radiation fin thermistor e Discharge pipe temperature thermistor e Outdoor unit heat exchanger temperature thermistor e Outdoor air thermistor Replace the following heat exchanger thermistor functioning gt thermistor e Indoor unit heat exchanger thermistor Replace the outdoor unit P4 Radiation fin thermistor J3 Discharge pip
27. Osaka 530 8323 Japan Tokyo office Shinjuku Sumitomo Bldg 6 1 Nishi Shinjuku 2 chome Shinjuku ku Tokyo 163 0235 Japan O For further improvement specifications or designs are subject to change without prior notice Printed in Singapore 06 2003 AK COS
28. Please note that the latching sound varies depending on the valve type Service Diagnosis 105 Check Si06 313 5 1 4 Four Way Valve Performance Check Check No 5 Turn off the power and turn it on again Y Four way valve coil Start the heating mode run Cooling dry No continuity Heating Continuity Y S80 voltage NO at DC 180 220 V with Replace the outdoor unit compressor on PCB Fig 1 YES Disconnect the four way valve coil from the connector and check the continuity Four way valve NO coil resistance at Replace the four way valve 1500 ohms coil YES gt Replace the four way valve Fig 1 Voltage at S80 DC180 220V Compressor ON Time R2856 106 Service Diagnosis Si06 313 Check 5 1 5 Thermistor Resistance Check Check No 6 Remove the connectors of the thermistors on the PCB and measure the resistance of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below Thermistor R25 C 20kQ B 3950 Temperature C 20 211 0 kQ 15 150 10 116 5 5 88 0 67 2 5 51 9 10 40 15 31 8 20 25 25 20 30 16 35 13 40 10 6 45 8 7 50 7 2 a oe Resistance range R25 20kQ B 3950 kQ me CC R1437 Service Diagnosis 107 Check S
29. Use the tester G inthe DC range o Fan motor lead wire 231 Compressor lead wire Reactor lead wire OL lead wire Solenoid valve lead wire Thermistor lead wire R2858 5 1 12 Power Transistor Check Check No 13 m Checking the power transistor Never touch any live parts for at least 10 minutes after turning off the circuit breaker e f unavoidably necessary to touch a live part make sure the power transistor s supply voltage is below 50 V using the tester e For the UVW make measurements at the Faston terminal on the board or the relay connector Power transistor UVW Power transistor UVW Tester s negative terminal S Power transistor UVW Power transistor Tester s positive terminal UVW gt Normal resistance Several kohms to several Mohms Abnormal resistance 0 orc Service Diagnosis 111 Check Si06 313 5 1 13 Main Circuit Electrolytic Capacitor Check Check No 14 WR Checking the main circuit electrolytic capacitor Never touch any live parts for at least 10 minutes after turning off the circuit breaker e f unavoidably necessary to touch a live part make sure there is no DC voltage using the tester e Check the continuity with the tester Reverse the pins an
30. ara lats da 153 fan speed eettmg eeceeeeeeeeeeeeeeeeenneeeees 10 153 O taa 91 field Setting SWItCN oooonnococccccinonccccnnncncnocccnccnnncncnnnnns 12 VA trio deet 10 153 forced cooling operatton eeeeeeeeseeeeeeesneeees 17 Mini 10 153 forced Operation MOE coocooccccccccccccconccnnnnonnncnncnnnnnnns 40 SG vectra EE 10 153 forced operation ON OFF ewitch 12 jumper saing Sasae 153 FOUL WAY VQ VO nyaa anr e E rana 147 four way valve abnormalgv A 85 L four way Valve coll 147 ii tala 12 four way valve operation compensation 31 RR Ot 12 four way valve performance check 106 EE E A E SE Ee dg 93 four way valve switching cooonooccccnnnnccccccnonannccnnnns 31 E EN 95 freeze up protection Control 33 73 ita ba ad 97 frequency Control 16 29 LED Avnet AOA A 12 frequency principle ooocoococcccnnncccccnnnanancccnnnnnncnns 16 GEAR 10 TOME OPING ota eiteeee leis eee nines 116 EDI EE 10 TON Daf A 114 128 LED Ainara oa 10 e DR 10 limit switch continuity check AA 104 FU des series bce EE 12 QUID Neue aci 123 ESEE ais 12 list of FUNCTIONS iio a AAEE 2 PUZO T ian heise trp ber eeend Avent aede event eer 12 low Hz high pressure limit oooo oocoonnnninncnnnnnnaccccns 35 FUNCTIONS liSt of 2 low voltage detection oooooccocccccccccccononancconcnnncncnns 101 TIS EE 10 12 M G main circuit electrolytic capacitor check 112 GAS Plica ati 123 A teehvn EA EA 14 Mode hierarchy crees iaire nare E RE 28
31. at the left side of the drain pan assembly Check the continuity of the switch connection Upward Limit switch Forward Q0363 The shutter can be opened and closed with hand Keep the shutter open and closed all the way for each continuity check steps 104 Service Diagnosis Si06 313 Check 5 1 3 Electronic Expansion Valve Check Check No 4 Conduct the followings to check the electronic expansion valve EV 1 2 3 Check to see if the EV connector is correctly inserted in the PCB Compare the EV unit and the connector number Turn the power off and back on again and check to see if all the EVs generate latching sound If any of the EVs does not generate latching noise in the above step 2 disconnect that connector and check the conductivity using a tester Check the conductivity between pins 1 3 and 6 and between pins 2 4 and 5 If there is no conductivity between the pins the EV coil is faulty Harness 6P 5 2 5 4 6 1 6 3 6P Connector Check 123 45 6 R1082 If no EV generates latching sound in the above step 2 the outdoor unit PCB is faulty If the conductivity is confirmed in the above step 2 mount a good coil which generated latching sound in the EV unit that did not generate latching sound and check to see if that EV generates latching sound If latching sound is generated the outdoor unit PCB is faulty lf latching sound is not generated the EV unit is faulty H Note
32. be changed while HOME LEAVE operation is being used e When operation is shut off during HOME LEAVE operation using the remote controller or the indoor unit ON OFF switch we will remain on the remote controller display 17 58 System Configuration Si06 313 Instruction 2 9 TIMER Operation Y TIMER Operation Timer functions are useful for automatically switching the air conditioner on or off at night or in the morning You can Ss also use OFF TIMER and ON TIMER in combination E To use OFF TIMER opera tion e Check that the clock is correct If not set the clock to the present time page 9 1 Press OFF TIMER button ae a is displayed POWERFUL e 0 0 blinks y 2 Press TIMER Setting button until the time dh the GE Su Ga point you like e Every pressing of either button increases or decreases the time setting by 10 min utes Holding down either button changes the setting rapidly 3 Press OFF TIMER button again e The TIMER lamp lights up Vly Og E To cancel the OFF TIMER Operation 4 Press CANCEL button e The TIMER lamp goes off Notes When TIMER is set the present time is not displayed Once you set ON OFF TIMER the time setting is kept in the memory The memory is canceled when remote controller batteries are replaced e When operating the unit via the ON OFF Timer the actual length of operation may vary from the time entered by the use
33. by the hall IC m The fan does not start in 30 seconds even when the fan motor is running m The system will be shut down if the error occurs 16 times m Clearing condition Continuous run for about 5 minutes normal H Fan motor breakdown m Harness or connector disconnected between fan motor and PCB or in poor contact WR Foreign matters stuck in the fan Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Fan motor connector disconnected Turn off the power and reconnect the connector YES Foreign matters in or gt Remove around the fan y NO Get started Check No 15 Check the outdoor unit PCB rpm pulse input e NO E Pulse signal inputted Replace the outdoor unit fan motor YES Replace the outdoor unit PCB R2843 82 Service Diagnosis Si06 313 Troubleshooting 4 11 Input Over Current Detection Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes EG An input over current is detected by checking the input current value being detected by CT with the compressor running m The following CT input with the compressor running continues for 2 5 seconds CT input Above 20 A The system will be shut down if the error occurs 16 times Clearing condition Continuous run for about 5 minutes normal Over c
34. controller odio diia il debidas 70 discharge pipe thermistor 26 27 37 92 145 removal procedure cococococcccoconcnnononrononencoranincnranonos 113 indoor heat exchanger thermistor 26 27 77 right EE tra aia 135 outdoor air ermtetor EEN 92 room temperature fhermietor 77 119 outdoor heat exchanger thermistor ooocccccccc o 26 27 92 145 S radiation fin thermistor ccccccceceeeeeeeeeeeeees 92 A ren et an Here 12 138 139 room temperature thermistor 77 119 A e E E 12 138 139 thermistor or related abnormality indoor unit 77 EE 12 139 thermistor or related abnormality outdoor unit 91 Een 12 137 139 thermistor resistance check EE 107 A AAA 10 72 Timer ODE E 59 SOO EE 10 72 top Peinado 127 HE Eed dE 10 72 Iroublesbootmng AEN 64 71 EE 10 72 troubleshooting with the LED indication 68 O A D A E 10 turning speed pulse input on the outdoor unit A e EEN O T RE EE ETA 10 A detdencutruenbeaiitasatainnniataiaaeatle 112 SAA ed de tala tete Lats DE 10 Index iii Si06 313 U Dri aida 99 A 101 HE ebe cages eege ege A EE 79 vV AA e EEEE EE 10 VE 12 VTT 10 12 voltage detection function eseese 40 WwW Wide angle IOUVIES ooooccccnnoccccccnononccnnnnnnanncnninnnn cnn 18 WiriNg diagrams e an aa cn nn rana ncnn nano 158 Index Si06 313 Drawings amp Flow Charts A H ARC433A sees 70 heating peak cut Control 33 automatic air flo
35. e Press this button once to start operation Press once again to stop it 7 MODE selector button 8 9 10 11 12 13 14 15 lt i 5 OND SH e It selects the operation mode AUTO DRY COOL HEAT FAN page 10 SILENT button for OUTDOOR UNIT SILENT operation page 15 FAN setting button e It selects the air flow rate setting SWING button page 12 ON TIMER button page 19 TIMER Setting button e It changes the time setting OFF TIMER button page 18 TIMER CANCEL button e It cancels the timer setting CLOCK button page 9 System Configuration 47 Instruction Si06 313 2 3 Preparation before Operation y Preparation Before Operation E To set the batteries Position and correctly 1 Press with a finger and slide the front cover to take it off 2 Set two dry batteries AAA 3 Set the front cover as before ATTENTION About batteries e When replacing the batteries use batteries of the same type and replace the two old batteries together e When the system is not used for a long time take the batteries out e We recommend replacing once a year although if the remote controller display begins to fade or if reception deteriorates please replace with new alkali batteries Using manganese batteries reduces the lifespan e The attached batteries are provided for the initial use of the system The usable period of the batteries m
36. fan motor winding Operation halt due to breaking of wire inside the fan motor Operation halt due to breaking of the fan motor lead wires Operation halt due to faulty capacitor of the fan motor Detection error due to faulty indoor unit PCB 1 Service Diagnosis 75 Troubleshooting Si06 313 Troubleshooting Check No 01 Refer to P 104 Check No 02 Refer to P 104 AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn off power supply and rotate fan by hand j Does fan rotate smoothly NO Replace fan motor YES Turn power ON and operate fan j Turn off power supply NO and disconnect fan motor connector then turn power ON TES Check No 01 Check output of fan motor connector Does it rotate Is motor NO aa sore Replace indoor generated unit PCB 1 YES Is motor NO Check No 02 Control power voltage E output of indoor generated unit PCB 1 Turn off power supply and disconnect fan motor connector then turn power ON again Y Check No 01 Replace indoor Check output of fan unit PCB 2 motor connector Is motor control NO power voltage DC 16V generetad Replace indoor unit PCB 1 Y Is rotation number command voltage DC 5V generated YES Replace fan motor No
37. halted The indoor heat exchanger thermistor is used for anti icing control During the cooling operation if the heat exchanger temperature in the room where operation is halted becomes 1 C or if the room temperature heat exchanger temperature in the room where operation is halted becomes gt 10 C it is assumed as icing During heating the indoor heat exchanger thermistor is used for detecting the discharge pipe thermistor disconnected When the discharge pipe temperature become lower than an indoor heat exchanger temperature a disconnected discharge pipe thermistor can be detected 26 Function and Control Si06 313 Function of Main Structural Parts 2 1 2 Cooling Only Model A Outdoor Heat Exchanger Thermistor DCB B Discharge Pipe Thermistor DOT C Indoor Heat Exchanger Thermistor DCN Electrontic A expansion valve C Compressor B R2828 The outdoor heat exchanger thermistor is used for controlling target discharge temperature Set a target discharge temperature depending on the outdoor and indoor heat exchanger temperature Control the electronic expansion valve opening so that the target discharge temperature can be obtained When cooling an outdoor heat exchanger thermistor is used for detecting the discharge thermistor disconnected When the temperature of the discharge piping is lower than the temperature of outdoor heat exchanger a disconnected discharge thermist
38. in comes out R2605 front panel Push lock R2606 114 Removal Procedure Indoor Unit Si06 313 2 o a o S N E o i Li 3 Le Q O o Ben j Iil ori o SR RES 2 e SE x Dog OD O OD ee oO z8 Coo SO0EZSC x Zem d e e n D e as OAS NEE Q oot ot Ea S Oo ff E aesass 2 o SI S 115 Removal Procedure Indoor Unit Step 5 Disengage the three Procedure Si06 313 Points 6 Remove the four hooks on the bottom of the front panel screws to take out the front grille three locations e i mM R2609 R2611 H Mounting screw M4 x 16 116 Removal Procedure Si06 313 Indoor Unit 1 2 Removal of the Horizontal Blade Procedure AN Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Open the horizontal blade R2612 2 Disengage the supporting bracket at the center position R2613 3 Bend the horizontal blade slightly to disengage the shafts at A left and right side of the blade ae SE AREA R2614 m For installation engage the supporting bracket at center of the blade after insert
39. management when other controls are functioning m When frequency is drooping Frequency management is carried out only when the frequency droops m For limiting lower limit Frequency management is carried out only when the frequency rises 5 Upper and lower limit of frequency by PI control The frequency upper and lower limits are set depending on indoor unit When low noise commands come from the indoor unit or when outdoor unit low noise or quiet commands come from indoor unit the upper limit frequency must be lowered than the usual setting 30 Function and Control Si06 313 Control Specification 3 3 Controls at Mode Changing Start up 3 3 1 Preheating Operation Outline Operate the inverter in the open phase operation with the conditions including the preheating command only for heat pump model from the indoor the outdoor air temperature and discharge pipe temperature Detail Preheating ON Condition m When outdoor air temperature is below 10 5 C and discharge pipe temperature is below 10 5 C inverter in open phase operation starts OFF Condition m When outdoor air temperature is higher than 12 C or discharge pipe temperature is higher than 12 C inverter in open phase operation stops 3 3 2 Four Way Valve Switching Outline of heating Heat Pump Only operation During the heating operation current must be conducted and during cooling and defrosting current must not be conducted In order to eliminate the s
40. motor 1 Disconnect the connector for fan motor S70 The illustration shows arrangement of the fan motor lead wire Fan motor lead wire R2693 132 Removal Procedure Si06 313 Outdoor Unit Step Procedure Points 3 Unscrew the washer fitted nut M10 of the Leit Wess F SS A H propeller fan with a TT X spanner y ech Si i am c Mh allt 7 WT K pi Mi ET En Propeller fan R2694 Em Align y mark of the propeller fan with D cut L i i section of the motor shaft when reassembling 4 Remove the four screws from the fan motor ON Mm Mi WH e R2696 Removal Procedure 133 Outdoor Unit Si06 313 Step Procedure Points 5 Pull the fan motor out m Put the lead wire through the
41. passed contact with people air is blown since turning on the air conditioner upper air outlet room temperature is e At start of operation or other times when the room is not fully cooled e Attimes other than below Normal time pened e Airis blown from the upper and lower air outlets for high speed cooling dur ing COOL mode and for filling the room with warm air during HEAT mode e At start or when air temperature is e So that air does not come into direct low contact with people Air is blown upper air outlet e During Dry mode so that cold air does not come into direct contact with people air is blown upper air outlet a When setting the air outlet selection switch to f e Regardless of the operating mode or situation air blows from the upper air outlet e Use this switch when you do not want air coming out of the lower air outlet While sleeping etc Z CAUTION e Do not try to adjust the flap by hand e When adjusting by hand the mechanism may not operate properly or condensation may drip from air outlets 13 54 System Configuration Si06 313 Instruction 2 6 POWERFUL Operation W POWERFUL Operation POWERFUL operation quickly maximizes the cooling heating effect in any operation mode You can get the maximum capacity parin E To start POWERFUL operation 1 Press POWERFUL button e POWERFUL operation ends in 20 minutes Then the system automatically operates
42. relay cable 1 or 2 Check No 12 Check the capacitor voltage YE YE S Replace the outdoor unit Current Capacitor charged when PCB guideline the indoor unit or outdoor unit main relay turns on Rising with increasing frequency n Turn off the power Disconnect the harnesses U V and W DC380 30V Y No Check with the inverter checker E Measure the rectifier input voltage Y YES Correct the power supply or replace the SPM Replace the outdoor unit PCB NO Turn off the power and reconnect the above harnesses Then turn on the power again and get the system restarted y YES Replace the outdoor unit PCB Compressor running Replace the compressor Voltage within the allowable range Supply voltage 15 YES Replace the outdoor unit PCB Check the supply voltage R2848 90 Service Diagnosis Si06 313 Troubleshooting 4 16 Thermistor or Related Abnormality Outdoor Unit Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes HH 3 d HD This type of error is detected by checking the thermistor input voltage to the microcomputer A thermistor error is detected by checking the temperature The thermistor input is above 4 96 V or below 0 04 V with the power on Error
43. silent operation 1 When Cooling Operation When the outdoor air temperature is lower than 37 C the fan tap must be set to L 2 When Heating Operation When the outdoor air temperature is higher than 4 C the fan tap must be turned to L only for heat pump model 3 9 Moisture Protection Function 2 Outline Detail In order to obtain the dependability of the compressor the compressor must be stopped according to the conditions of the temperature of the outdoor air and outdoor heat exchanger Heat Pump Model WR Operation stop depending on the outdoor air temperature Compressor operation turns OFF under the conditions that the system is in cooling operation and outdoor air temperature is below 10 C Cooling Only Model WR Operation stops depending on the outdoor air temperature Compressor operation turns OFF under the condition that outdoor air temperature is below 12 C 34 Function and Control Si06 313 Control Specification 3 10 Low Hz High Pressure Limit Outline Heat Pump Only Set the upper limit of high pressure in a low Hz zone Set the upper limit of the indoor heat exchanger temperature by its operating frequency of Hz Separate into three zones reset zone unchanged zone and drooping zone and the frequency control must be carried out in such zones Detail Separate into Zones 60 C y Drooping zone Highest heat i exchanger 59 C temperature Reset zone nchanged among the zone __56
44. stuff After cleaning make sure that the front grille is securely fixed 22 System Configuration 61 Instruction Si06 313 Filters 1 Open the front grille page 22 2 Remove the air filter e Press the claws on the right and left of the air filter down slightly then pull upward 3 Take off the air purifying filter Photocatalytic deodorizing filter e Hold the tabs of the frame and remove the claws in 4 places 4 Clean or replace each filter Air purifying filter See below or photocatalytic NYJ deodorizing filter 4 5 Set the air filter air purifying filter and photocatalytic deodorizing filter as they were and close the front grille e Operation without air filters may result in troubles as dust will accumulate inside the indoor unit Air filter E Air Filter 1 Wash the air filters with water or clean them with vacuum cleaner e f the dust does not come off easily wash them with neutral detergent thinned with lukewarm water then dry them up in the shade e Itis recommended to clean the air filters every two weeks E Air Purifying Filter green Replace approximately once every 3 months 1 Detach the filter element and attach a new one e Insert with the green side up e Itis recommended to replace the air purifying filter every three months E Photocatalytic Deodorizing Filter gray Maintenance 1 Dry the photocatalytic deodorizing filter in the sun e After rem
45. the temperature set by the remote controller will be taken as the AD signal and is used for frequency command Temperature AD Temperature AD Temperature AD Temperature AD difference signal difference signal difference signal difference signal 0 Th 2 0 4 4 0 8 6 0 C OFF 0 5 1 2 5 5 4 5 9 6 5 D 1 0 2 3 0 6 5 0 A 7 0 E 1 5 3 3 5 7 5 5 B 7 5 F Th OFF Thermostat OFF Frequency Initial Setting m Outline When starting the compressor or when conditions are varied due to the change of the room the frequency must be initialized according to the total of a maximum AD value of the indoor unit and the Q value of the indoor unit Q value Indoor unit output determined from indoor unit volume air flow rate and other factors PI Control Determine Frequency Up Down by AD Signal 1 P control Calculate AD value in each sampling time 20 seconds and adjust the frequency according to its difference from the frequency previously calculated 2 control If the operating frequency is not change more than a certain fixed time adjust the frequency up and down according to the AD value obtaining the fixed AD value When the AD value is small lower the frequency When the AD value is large increase the frequency 3 Limit of frequency variation width When the difference between input current and input current drooping value is less than 1 5 A the frequency increase width must be limited Frequency
46. thermistor resistance value e Fin thermistor Check the radiation fin temperature Thermistor as specified in its characteristic chart NO Replace the fin thermistor Replace the outdoor unit PCB Above 80 C Check No 9 Check the outdoor unit fan or related Functioning Radiation fin dirty Slightly dirty Malfunctioning Too dirty gt Replace the fan motor Correct the connectors and fan motor leads Replace the outdoor unit PCB E heck No 7 heck the installation condition gt Clean up the radiation fin R2850 94 Service Diagnosis Si06 313 Troubleshooting 4 18 Radiation Fin Temperature Rise Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes i LY A radiation fin temperature rise is detected by checking the radiation fin thermistor with the compressor on If the radiation fin temperature with the compressor on is above 90 C m If a radiation fin temperature rise takes place 4 times successively the system will be shut down H The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time Fin temperature rise due to defective outdoor unit fan Fin temperature rise due to short circuit Fin thermistor defective Connector in poor
47. to protect the air conditioner e When ON OFF button was You should wait for about 3 minutes pressed soon after operation was stopped e When the mode was reselected Hot air does not flow out soon The air conditioner is warming up You should wait for 1 to 4 after the start of heating minutes operation The system is designed to start discharging air only after it has reached a certain temperature The heating operation stops The system is taking away the frost on the outdoor unit suddenly and a flowing sound You should wait for about 3 to 8 minutes is heard The outdoor unit emits water or M In HEAT mode steam es The frost on the outdoor unit melts into water or steam when the air conditioner is in defrost operation E in COOL or DRY mode e Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips Mists come out of the indoor E This happens when the air in the room is cooled into mist by unit the cold air flow during cooling operation The indoor unit gives out odour MW This happens when smells of the room furniture or cigarettes are absorbed into the unit and discharged with the air flow If this happens we recommend you to have the indoor unit washed by a technician Consult the service shop where you bought the air conditioner The outdoor fan rotates while E After operation is stopped the air conditioner is not in e The outdoor fan continues rotating for an
48. unit fan running Fan motor lead wire connector disconnected Reconnect Outdoor unit fan system functioning Go to Check No 15 R2857 Service Diagnosis 109 Check Si06 313 5 1 9 Power Supply Waveforms Check Check No 10 Measure the power supply waveform between pins 1 and 3 on the terminal board and check the waveform disturbance m Check to see if the power supply waveform is a sine wave Fig 1 m Check to see if there is waveform disturbance near the zero cross sections circled in Fig 2 Fig 1 Fig 2 R1444 R1736 5 1 10 Inverter Units Refrigerant System Check Check No 11 Refrigerant system check y Is the discharge YES thermister disconnected from gt Correct the problem the holder y NO Is any moisture YES found in sight glass Conduct the check after operating the equipment for a sufficient length of time Conduct vacuum drying y NO Check for gas leaks See the section on insufficient gas detection YES i Replace the refrigerant R1445 110 Service Diagnosis Si06 313 Check 5 1 11 Capacitor Voltage Check Check No 12 Before this checking be sure to check the main circuit for short circuit WR Checking the capacitor voltage e With the circuit breaker still on measure the voltage according to the drawing of the model in question Be careful never to touch any live parts
49. 155 Piping Diagrams Si06 313 1 Piping Diagrams 1 1 Indoor Units FVKS50BVMB FVXS50BVMB INDOOR UNIT HEAT EXCHANGER MUFFLER 7 OCUT_ Litt a e e 48CUT y J a 4 8CuT A CROSS FLOW FAN FAN MOTOR S 9 5CuT THERMISTOR O MUFFLER ON HEAT EXCH o Gili ee Ul FIELD PIPING CROSS FLOW FAN FAN MOTOR OCuT 6 4CuT FIELD PIPING 9 5CuT A 12 7CuT REFRIGERANT FLOW COOLING HEATING 4D020911B 156 Appendix Si06 313 Piping Diagrams 1 2 Outdoor Units RKS50BVMB RS50BVMB OUTDOOR UNIT 9 5CuT HEAT EXCHANGER OUTDOOR AIR TEMPERATURE THERMISTOR E 7 9CuT CAPILLARY TUBE 1 MUFFLER SA t REFRIGERANT FLOW 7 9CuT 6 4CuT COOLING HEAT EXCHANGER AA 2 THERMISTOR CAPILLARY TUBE 2 g l 7 9CuT Se 5 T CAPILLARY TUBE 3 3 4 A PROPELLER FAN fa i l d Lu LI 1 MOTOR OPERATED sc VALVE Wo 7 9CuT m E m Soe f 12 7CuT 12 7CuT 1 D Got gt lt FELD PIPING 6 4CuT 6 4CuT e LIQUID DISCHARGE PIPE STOP VALVE THERMISTOR alt FIELD PIPING 12 7CuT ACCUMLATOR GAS STOP VALVE COMPRESSOR WITH SERVICE PORT 3D037835A RXS50BVMB RXS
50. 200 sec LZ sec Time in ZS R1376 Function and Control 31 Control Specification Si06 313 3 4 Discharge Pipe Temperature Control Outline The discharge pipe temperature is used as the compressor s internal temperature If the discharge pipe temperature rises above a certain level the operating frequency upper limit is set to keep this temperature from going up further Detail Divide the Zone A C Stop zone B C Drooping zone A 110 B c 102 Reset Unchanged Return zone R2836 Management within the Zones Zone Control contents Stop zone When the temperature reaches the stop zone stop the compressor and correct abnormality Drooping zone Start the timer and the frequency will be drooping Unchanged zone Keep the upper limit of frequency Return Reset zone Cancel the upper limit of frequency 3 5 Input Current Control Outline Detect an input current by the CT during the compressor is running and set the frequency upper limit from such input current In case of heat pump model this control is the upper limit control function of the frequency which takes priority of the lower limit of four way valve activating compensation Detail The frequency control will be made within the following zones 2 Hz drooping 1 0 second after After 2 5 seconds rushing in the lt gt drooping zone bk Compressor stops 11 Stop zone nput current S 1 2 droopin Droo
51. 25 31 check No Td ont dee 112 check No EE 112 A clamp Plate oooonoocccccnnoncccccnonccancnonanancnnnnnnanccnnnnnnno 128 A A A os 72 Ee 12 139 A A O II 73 ON 12 139 AO de les e eos al At eee 75 COMPIOSSON ENEE 150 AG A aman NN 12 137 COMPrESSOr OCK A tsetse teens eens nenseseseeen 81 Le 12 138 Compressor Ooverload EEN 80 accumulator ii eee a Tectia 150 compressor protection fUNCtION ue 31 address setting Iumper ooooooocccccnnncccccccnocconaccnnccnnnnnns 10 CONNECTIONS luese eege d 10 12 A A E 25 115 control PCB indoor unit en 11 72 121 air TOW E AAA acetate Pe ae ad 53 control PCB outdoor unt 13 139 air purifying Herce 25 COSS TOW faNS isc ciorrcionionii ieee 126 ARC433A eerles EE 70 CT or related abnormality ee 89 Auto Dry Cool Heat Fan operation 51 automatic air flow Control 19 D automatic operation NAOH E EE LO 21 DO fan lock cti geet 82 auto restart function c ccccceccccccececccceceuececceeececeae 25 defrost Control 35 A coe a arenes cet cee ge otctaas 18 diode bridge nia asi 12 discharge ole 123 127 Cc discharge pipe eee eeeeeeeeeeeeeneeeeeeenaeeeeeeettaeeeeeeeaas 37 A O 77 discharge pipe temperature control 32 38 87 EE 78 discharge pipe thermistor 26 27 37 92 145 e WE 77 discharge pressure Check ENEE 109 cable way board Lata casa t 136 display POB acosta 41 121 capacitor voltage check 111 olli Ne Lu TEE 125 care and clau tirada 61 drip proof plate ENEE 119 CAS
52. 45 40 36 33 44 40 36 33 45 40 36 33 Sound Power H dBA 56 57 56 57 Outdoor Unit RXS50BVMB RXS50BVMA Casing Color Ivory White Ivory White Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type Compressor Model 2YC32HXD 2YC32HXD Motor Output W 1 500 1 500 Refrigerant Model FVC50K FVC50K Oil Charge L 0 65 0 65 Refrigerant Model R410A R410A Charge kg 1 20 1 20 g H 47 7 1 684 44 1 1 557 47 7 1 684 44 1 1 557 ee L 441 GH 441 44 1 57 44 1 pa Fan Type Propeller Propeller Motor Output W 53 53 Running Current A 7 20 7 90 6 95 7 59 Power Consumption W 1 645 1 800 1 645 1 800 Power Factor 99 3 99 1 98 6 98 8 Starting Current A 75 7 9 Dimensions HxWxD mm 735x825x300 735x825x300 Packaged Dimensions HxWxD mm 784x960x390 784x960x390 Weight kg 49 48 Gross Weight kg 53 53 gperation 90 dBA 47 48 47 44 48 45 Sound Power H dBA 63 64 63 64 Drawing No 3D040831 3D040832 Notes m MAX interunit piping length 30m Conversion Formulae m MAX interunit height difference 20m Amount of additional charge of refrigerant 20g m for piping length exceeding 10m oe Almere m The data are based on the conditions shown in the table below cfm m minx35 3 Cooling Heating Piping Length Indoor 27 CDB 1 9 CWB Indoor i 20 CDB 7 5m Outdoor 35 CDB 24 CWB Outdoor 7 CDB 6 CWB m SL The silent fan level of the air flow rate setting Specifications Specifications Si06 313 8 Specifications
53. 50BVMA OUTDOOR UNIT HEAT EXCHANGER OUTDOOR AIR TEMPERATURE Tal THERMISTOR es CAPILLARY TUBE 1 E MUFFLER WITH eacut FILTER REFRIGERANT FLOW 7 9CuT ACu COOLING HEAT EXCHANGER Br THERMISTOR U CAPILLARY TUBE 2 3 gt HEATING 7 9CuT oe i CAPILLARY TUBE 3 3 i z 0 PROPELLER FAN D 5 H 12 7CuT FOUR WAY VALVE Cone operaren 1 ON HEATING VALVE 12 7CuT ee 12 7CuT WE gt GER E Ls 2 D S 12 7CuT i nN de wues DI FIELD PIPING 6 4CuT 6 4 CuT 5 LIQUID DISCHARGE PIPEN O STOP VALVE THERMISTOR U amp FIELD PIPING 12 7 CuT ACCUMLATOR ae GAS STOP VALVE COMPRESSOR AECE PORT 300342626 Appendix 157 Wiring Diagrams Si06 313 2 Wiring Diagrams 2 1 Indoor Units FVKS50BVMB FVXS50BVMB Lg outdoor of Ee BLK 1 r gt wot HESS 3 i i E 1 1 1 YLW TRANSMISSION Rss WIRELESS CIRCUIT EE FIELD WIRING REMOTE CONTROLLER ECBA gt 0 PROTECTIVE EARTH ay 1 F i e e i FU FUSE i H2P H3P H1P H2P HSP PILOT LAMP i uS LIMIT SWITCH SIGNAL i MIF M2F ENN MOTOR RECEIVER M
54. 7 Check the installation condition gt Correct the power supply or replace the SPM Replace the outdoor unit PCB R2844 84 Service Diagnosis Si06 313 Troubleshooting 4 12 Four Way Valve Abnormality ER Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes The room temperature thermistor the indoor unit heat exchanger thermistor the outdoor temperature thermistor and the outdoor unit heat exchanger thermistor are checked to see if they function within their normal ranges in the operating mode A following condition continues over 1 minute after operating 10 minutes Cooling dry operation room temp indoor heat exchanger temp lt 10 C Heating indoor unit heat exchanger temp room temp lt 10 C Connector in poor contact Thermistor defective Outdoor unit PCB defective Four way valve coil or harness defective Four way valve defective Foreign substance mixed in refrigerant Insufficient gas Service Diagnosis 85 Troubleshooting Si06 313 Troubleshooting AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check No 5 Refer to P 106 Check No 6 Refer to P 107 Check No 11 Four way valve coil disconnected loose Harness out of connector YES Correct YES
55. Application Hot Start Function O O Chargeless 10m 10m Automatic Defrosting O O Power Selection 5 Rooms Centralized Controller l Automatic Operation O O Option O O Operation Programme Dry Function O O Remote Control Adaptor o o Fan Only O O Remote Normal Open Pulse Contact Option Control New Powerful Operation Non Inverter Remote Control Adaptor gt i O O Inverter Powerful Operation Oo o Normal Open Contact Option Priority Room Setting S DIII NET Compatible Adaptor Option O O Cooling Heating Mode Lock Remote Wireless O O Lifestyle i Controller i _ Convenience Home Leave Operation O O Wired Indoor Unit On Off Switch O O Signal Reception Indicator O O Temperature Display Another Room Operation Note O Holding Functions No Functions List of Functions List of Functions Si06 313 4 List of Functions Si06 313 Part 2 Specifications a OL 6 ES Cool E sitiar a 6 1 2 Heat Pump Specifications 5 Specifications Si06 313 a a 1 Specifications LI 1 1 Cooling Only 230V 50Hz Model Indoor Units FVKS50BVMB FVKS50BVMB Outdoor Units RKS50BVMB RS50BVMB kw 4 8
56. B 2 Control PCB indoor unit S6 S302 S301 CL 8 2P088265 1 m Dm 5 ane 30 r q N PN LOT NO 5 Piar gen Lo J A ET Co 3 Reg 5 b ei ay JA JB JC 21 VGU AOSZIV SERVICE HONOR 203 S32 S31 S7 Vi R3026 PCB 3 Service PCB PCB 4 Display PCB sw4 S26 LED11 LED12 LED14 2 a A tei EE Tse B SES R3027 ES LO co N o Es O e N LC A a R3028 Printed Circuit Board Connector Wiring Diagram 11 Printed Circuit Board Connector Wiring Diagram Si06 313 1 2 Outdoor Unit Connectors 1 S10 AC2 HL 2 S20 3 31 S32 4 S33 S71 5 34 S52 S72 S102 CN11 CN14 HAC1 HE1 6 S40 7 51 S101 8 S70 9 S80 10 S90 11 S91 12 AC1 E 13 H1 H2 14 HE2 15 L1 L2 EN Note Other Designations 1 FU 2 FU2 FU201 3 LEDA W1 W4 3 A ep a LD 6 lt Connector for terminal strip Connector for electronic expansion valve coil Connector for SPM Connector for MID Connector for control PCB Connector for overload protector Connector for service monitor PCB Connector for fan motor Connector for four way valve coil Connector for thermistors outdoor air heat exchanger and discharge pipe Connector for fin thermistor Connector for power supply PCB Connector for diode bridge Connector for earth Connector for reactor Fuse 30A Fuse 3 15A Servic
57. H moisture protection function seeen 34 FHA WEE 12 mold proof air filter serate ran 25 Alano iras elit 12 A E EAE 88 N la e E A E A er 89 NAMES OF Darts EEN 45 HE egen alot coc d et EN Night Set ModE eenaa EEN 22 O E 10 HAC o dd EN 12 137 ii Index Si06 313 O EEN 10 OL activation ta dd or e a 80 SO ee ie 10 ON OFF button on indoor unn 25 O ebe Meee d 10 operation lamp CA A II AA 68 9802 tia 10 outdoor air thermistor cccccccccecececcecececcecececeueese 92 A en aa 10 12 139 outdoor unit fan system Check aa 109 iia ds 10 12 139 Outdoor Unit Silent operation ek getest 56 O 12 139 output over current detection ooooocccccccccncnccnn nn 97 O O 12 139 OVEP CUITONTL cccccccccceccceccevessccccescuseccecsecs 39 83 97 EE 12 137 139 lo Ee 39 80 GR E 12 138 139 O di ti das 12 139 P EE 10 A A O E A mur eles 91 S a Et EEA nn tls eign dite thal Bae as Raid 10 72 partition plate a an EE 143 EE 12 132 photocatalytic deodorizing Ml 25 A eaae aael 12 139 ee P EE eines 30 di 12 139 piping diagrams A IN EE 156 SB ried ee ee deel 10 72 position sensor abnormality ed DA ene ae 88 Sua a ls 12 137 139 power failure recovery function ccc cccccccccecececceueceee 10 e Eiere deefe een Seier ebe 12 137 139 power supply PCB indoor unit Se 10 72 122 diana altas 12 139 power supply PCB outdoor unit 13 137 self diagnosis digital dieplay en 25 power supply waveforms check 110 sensor Mal
58. ING EE 126 centralized Control 10 E check Ex it o ida creer 12 137 capacitor voltage CHECK tes oi EES 111 Egeter oe tees weenie ce 80 discharge pressure Check e a Ee S 109 Eo ast ee A EN electronic expansion valve Check 105 er ear EE Se eee 82 four way valve performance check 106 Esta a a a 83 installation condition check 108 A ee Ee 85 inverter units refrigerant system check 110 ld EE 135 main circuit electrolytic capacitor check 112 electrical DOX ess ege aa 120 142 outdoor unit fan system check 109 electrical box COVED ceeceeeessseeeeeeeeeeeeeeeeeeeees 131 power supply waveforms check 110 electrical box temperature rise s es 93 power transistor check 111 electronic expansion valve oooococcccnnnccccccnnccnannccnnos 148 thermistor resistance check 107 electronic expansion valve check 105 turning speed pulse input on the outdoor unit electronic expansion valve coll 148 DCBcheck 112 electronic expansion valve Control 36 O ea eaccn E laa 104 error codes ChECKINO 02 oe EE 104 OO EE 71 Check Ne OA coco ENEE El 104 PV WEE EE 72 Check No 04 tac a decai e A 105 eet 73 Check NO 0O5 cccccccccccccccceccececececcecercccececuccececsavenes 106 N E EE 75 check NO 06 ccccccccccccccccececeucececeueuecceceuecueceuenenes 107 Ci A A Be ete RE 77 check No D ee au 108 CA le td 78 Check NO 08 ccccccccccccccceccccecececcececcccecececcececsaveres 109 CON eee ets naa et etc toe eats
59. IS SWING MOTOR wes LOWER AIR OUTLET MOTOR PCB1 PCB4 PRINTED CIRCUIT BOARD Se RIT R2T THERMISTOR is 48 E WE S6 8302 CONNECTOR gH UPPER FAN MOTOR STW OPERATION SWITCH i S2W 4 UPWARD AIR FLOW LIMIT SWITCH z 544 i S4W AIR OUTLET SELECTION SWITCH i M2S 48 bH E Ke XIM TERMINAL STRIP i M i i SS R LOWER FAN MOTOR D i indoor a ROT 3D034713A 158 Appendix Si06 313 Wiring Diagrams 2 2 Outdoor Units RKS50BVMB RS50BVMB
60. N ica ia 28 3 1 Mode Hierarchy Tai aa a 28 32 Frequency CONTO vis at sale lon nti Seeker sect aia eed Ta 29 3 3 Controls at Mode Changing Gtart up 31 3 4 Discharge Pipe Temperature Control 32 3 57 Input Current COn Tola de eure eaten apse se 32 3 6 Freeze up Protection Control 33 3 7 F nstere at 33 E BE EE 34 3 9 Moisture Protection Function 2 cccceeceeeceeeeceeeeeeeeeeeeeeeeeeeseneeeseeeeees 34 3 10 Low Hz High Pressure Lime feneveadaugescestenes sivas Sech gedEdgededE gedd 35 3 11 D trost Control iento od pica 35 3 12 Electronic Expansion Valve Control 36 g O Ee 39 3 14 Forced Operation Mode EE 40 3 Lo Additional FUNCION rd aci n 40 Function and Control 15 Main Functions Si06 313 1 Main Functions H Note See the list of functions for the functions applicable to different models 1 1 Frequency Principle Main Control Parameters Additional Control Parameters Inverter Principle The compressor is frequency controlled during normal operation The target frequency is set by the following 2 parameters coming from the operating indoor unit H The load condition of the operating indoor unit m The difference between the room temperature and the set temperature The target frequency is adapted by additional parameters in the following cases H Frequency restrictions m Initial settings H Forced cooling operation To regulate the capacity a frequency control is needed T
61. RS Service Inverter Pair Floor Standing Type B Series Applied Models Inverter Pair Cooling Only lnverter Pair Heat Pump Non Inverter Pair Cooling Only Si06 313 Inverter Pair B Series Cooling Only Indoor Unit FVKS50BVMB Outdoor Unit RKS50BVMB RS50BVMB O0Heat Pump Indoor Unit FVXS50BVMB Outdoor Unit RXS50BVMB RXS50BVMA Table of Contents i Si06 313 Te INTOQUCION EE V Ll SUN Cautions ni o a Ed Vv Part 1 List of FUNCtioOns senn eKKRRR KK KE KEREN KK KK KEE RER KK KE aa A 1 Be lee EH 2 E COMO ON Vesta ina 2 1 27 Heat PUMP olaa 3 Part 2 Specifications ccccccccccor nn O Te eelere Smer incense er r ERO 6 Ba WK Cooling ONY mnane a E a ae aes lenge 6 t2 Heat PUMP EE 7 Part 3 Printed Circuit Board Connector Wiring Diagram 9 1 Printed Circuit Board Connector Wiring DiagraM oooccccnccccccccccnccanancns 10 Tal ele leie 10 1 2 Outdoor Unit poa pio 12 Part 4 Function and Control seeeuuu KK KKRR KKK KKK RR KKK KEE RR KK pk Keen wee 1 9 SN GETT Ree EE 16 1 1 Frequency Principles a E 16 1 2 Wide Angle Louvers and Auto ZGwimg 18 1 3 Fan Speed Control for Indoor Unie 19 1 4 Programme Dry Function asian li 20 LS Automatic Operativo 21 1 68 Night Set EE 22 1 7 Home Leave Operation 23 1 8 Inverter Powerful Operation viii da 24 19 EERSTEN 25 2 Function of Main Structural Farbe unid 26 St F nction OF TReErmiStOk oct 26 3 Control Specifica
62. Si06 313 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring DiagraM oooccccnccccccccccnccananccos 10 La indoor ln 10 12 Outdoor EE 12 Printed Circuit Board Connector Wiring Diagram 9 Printed Circuit Board Connector Wiring Diagram Si06 313 1 Printed Circuit Board Connector Wiring Diagram 1 1 Indoor Unit Connectors 1 S6 Connector for swing motor upper and lower 2 S7 S201 S203 Connector for power supply PCB 3 S8 S24 S26 Connector for control PCB 202 S204 4 S21 Connector for centralized control HA 5 S23 Connector for display PCB 6 S25 Connector for service PCB 7 S31 Connector for room temperature thermistor 8 S32 Connector for heat exchanger thermistor 9 S301 Connector for fan motor upper 10 S302 Connector for fan motor lower H Note Other designations 1 V1 Varistor 2 JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function Refer to page 153 for detail 3 SW1 Operation switch 4 SW2 Switch for upward air flow limit 5 SW4 Switch for air outlet selection 6 LED11 LED for operation green 7 LED12 LED for timer yellow 8 LED14 LED for Home Leave operation red 9 FU Fuse 3 15A PCB Detail PCB 1 Power Supply PCB indoor unit 202 EXA S204 R3025 10 Printed Circuit Board Connector Wiring Diagram Si06 313 Printed Circuit Board Connector Wiring Diagram PC
63. TEMP 5 y E 1 4 K sse 3 0008 em CG P2870 152 Others Si06 313 Others 1 2 Jumper Settings 1 2 1 When Two Units are Installed in One Room When two indoor units are installed in one room the two wireless remote controllers can be set for different addresses How to set the different addresses m Control PCB of the indoor unit 1 Remove the front grille 3 screws 2 Remove the electrical box 1 screw 3 Remove the drip proof plate 4 tabs 4 Cut the address jumper JA on control PCB m Wireless remote controller 1 Slide the front cover and take it off 2 Cut the address jumper J4 R2871 R2872 1 2 2 Jumper Setting Jumper Function When connected When cut On indoor control PCB factory set JC Power failure Auto start Unit does not resume operation recovery function after recovering from a power failure Timer ON OFF settings are cleared JB Fan speed setting Fan speed setting Fan rpm is set to 0 when compressoris Remote controller lt Fan stop gt OFF on thermostat setting Others 153 Others Si06 313 154 Others Si06 313 Part 9 Appendix PIO bh ID Wea I E 156 L t NOA UNS seet enger ee ege 156 12 OUTAOOK Un A a a ld 157 2 Wiring DIAQIAINS ii a Eo 158 ST Indoor aii a a o EA asociada 158 2 2 QUidO0UniS EEE E EEA dt 159 Appendix
64. VC50K Oil Charge L 0 65 0 65 Refrigerant Model R410A R410A Charge kg 1 20 1 20 Air Flow Rate m min cfm E SCH ey SCH E Fan Type Propeller Propeller Motor Output W 53 53 Running Current A 7 20 7 20 Power Consumption Ww 1 645 1 645 Power Factor 99 3 99 3 Starting Current A 75 7 5 Dimensions HxWxD mm 735x825x300 735x825x300 Packaged Dimensions HxWxD mm 784x960x390 784x960x390 Weight kg 49 49 Gross Weight kg 53 53 Operation E dBA 47 47 Sound Power H dBA 63 63 Drawing No 3D040833 C 3DO040834 Notes m MAX interunit piping length 30m Conversion Formulae m MAX interunit height difference 20m m Amount of additional charge of refrigerant 20g m for piping length exceeding 10m ie Art tore m The data are based on the conditions shown in the table below cfm m minx35 3 Cooling Piping Length Indoor 27 CDB 1 9 CWB 7 5m Outdoor 35 CDB 24 CWB m SL The silent fan level of the air flow rate setting 6 Specifications Si06 313 Specifications 1 2 Heat Pump 230V 50Hz 240V 50Hz Indoor Units FVXS50BVMB FVXS50BVMB Model Outdoor Units RXS50BVMB RXS50BVMA Cooling Heating Cooling Heating kw 4 8 0 9 5 3 6 0 0 9 7 7 4 8 0 9 5 3 6 0 0 9 7 7 Capac
65. a LED A O 7 ALJ S HH O gt R2838 The outdoor unit has one green LED LED A on the PCB The flashing green LED indicates normal condition of microcomputer operation 68 Service Diagnosis Si06 313 Problem Symptoms and Measures 2 Problem Symptoms and Measures Symptom Check Item Details of Measure Reference Page None of the units operates Check the power supply Check to make sure that the rated voltage is supplied Check the type of the indoor units Check to make sure that the indoor unit type is compatible with the outdoor unit Check the outdoor air temperature Heating operation cannot be used when the outdoor air temperature is 24 C or higher only for heat pump model and cooling operation cannot be used when the outdoor air temperature is below 5 C 10 C for Europe Diagnosis with remote controller 71 indication Check the remote controller Check to make sure that address settings for addresses the remote controller and indoor unit are correct Operation sometimes Check the power supply A power failure of 2 to 10 cycles can stop air stops conditioner operation Operation lamp OFF Check the outdoor air temperature Heating operation cannot be used when the outdoor air temperature is 24 C or higher only for heat pump model and cooling operation cannot be used
66. ain unit setting temperature 2 5 deg 2 Cooling Heating switching point Room temperature lt Main unit setting temperature 2 5 deg 3 Thermostat ON OFF point is the same as the ON OFF point of cooling or heating operation 4 During initial operation Room temperature gt Remote controller setting temperature Cooling operation Room temperature lt Remote controller setting temperature Heating operation Heating cooling switching point 25 deg or higher Heating thermostat OFF point Sei 1 5 deg Main unit setting or higher temperature Cooling thermostat WN KH INN Less than OFF point Si Si 1 5 deg Cooling Ey 2 5 deg heating switching point Cooling E Heating Cooling or higher operation operation operation A With compressor capacity supplied With no compressor capacity supplied R1360 Function and Control 21 Main Functions Si06 313 1 6 Night Set Mode When the OFF timer is set the Night Set circuit automatically activates The Night Set circuit maintains the airflow setting made by users The Night Set The Night Set circuit continues heating or cooling the room at the set temperature for the first Circuit one hour then automatically lowers the temperature setting slightly in the case of cooling or raises it slightly in the case of heating for economical operations This prevents excessive heating in winter and excessive cooling in summer to ensure comfortable sleep
67. an cause the equipment to fall resulting in injury For integral units only Be sure to install the product securely in the installation frame mounted on a window frame If the unit is not securely mounted it can fall and cause injury For integral units only vi Si06 313 Introduction AN Warning Be sure to use an exclusive power circuit for the equipment and follow the technical standards related to the electrical equipment the internal wiring regulations and the instruction manual for installation when conducting electrical work Insufficient power circuit capacity and improper electrical work can cause an electrical shock or fire Be sure to use the specified cable to connect between the indoor and outdoor units Make the connections securely and route the cable properly so that there is no force pulling the cable at the connection terminals Improper connections can cause excessive heat generation or fire When connecting 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 damag
68. and DRY mode e POWERFUL operation and OUTDOOR UNIT SILENT operation cannot be used at the same time Priority is given to POWERFUL operation e If operation is stopped using the remote controller or the main unit ON OFF switch when using OUTDOOR UNIT SILENT operation e will remain on the remote controller display 15 56 System Configuration Si06 313 Instruction 2 8 HOME LEAVE Operation I HOME LEAVE Operation HOME LEAVE operation is a function which allows you to record your preferred temperature and air flow rate settings E To start HOME LEAVE operation DAIKIN 1 Press HOME LEAVE button e The HOME LEAVE lamp lights up ni om aC E To cancel HOME LEAVE operation 1 2 e ooo EAVE SS OONOFF ZE TEMP 2 Press HOME LEAVE button again MODE FAN GMN e The HOME LEAVE lamp goes off SILENT A CANCEL TIMER Before using HOME LEAVE operation E To set the temperature and air flow rate for HOME LEAVE operation When using HOME LEAVE operation for the first time please set the temperature and air flow rate for HOME LEAVE operation Record your preferred temperature and air flow rate Initial setting Selectable range temperature Air flow rate temperature Air flow rate Cooling 25 C AUTO 18 32 C 5 step AUTO and SILENT Heating 25 C AUTO 10 30 C 5 step AUTO and SILENT 1 Press HOME LEAVE button Make sure is displayed in
69. ap 50 90 rpm 2 Fan stops during defrost operation Automatic Air The following drawing explains the principle for fan speed control for heating Flow Control for Thermostat Heating setting Phase control temperature 0 5 C L 15 C ML TC Difference between room E and set temperature M fan speed R2819 Automatic Air The following drawing explains the principle of fan speed control for cooling Flow Control for fanispeed Cooling Y 2 C Difference between room ML and set temperature 1 5 C 10 L 0 5 C Thermostat setting temperature Phase control R2820 Function and Control Main Functions Si06 313 1 4 Programme Dry Function Programme dry function removes humidity while preventing the room temperature from In Case of Inverter Units lowering Since the microcomputer controls both the temperature and air flow volume the temperature adjustment and fan adjustment buttons are inoperable in this mode The microcomputer automatically sets the temperature and fan settings The difference between the room temperature at startup and the temperature set by the microcomputer is divided into two zones Then the unit operates in the dry mode with an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level Room temperature at Temperature ON point Frequency switching Temperature di
70. ation of the out Indoor temperature 18 to 32 C door unit only a Indoor humidity 80 max e Condensation may occur on the indoor unit and drip HEAT Outdoor temperature 3 4MX 15 to 16 C e A safety device may work to stop the operation RX 15 to 21 C Indoor temperature 10 to 30 C DRY Outdoor temperature 3 4MK X 10 to 46 C A safety device may work to stop the operation RK X 10 to 46 C e Condensation may occur on the indoor unit and drip Indoor temperature 18 to 32 C Indoor humidity 80 max e Operation outside this humidity or temperature range may cause a safety device to disable the system 50 System Configuration Si06 313 Instruction 2 4 AUTO DRY COOL HEAT FAN Operation PY AUTO DRY COOL HEAT FAN Operation The air conditioner operates with the operation mode of your choice From the next time on the air conditioner will operate with the same operation mode E To start operation 1 Press MODE selector button and select a operation mode e Each pressing of the button advances the mode setting in sequence 1 AUTO DRY COOL 3 HEAT e FAN El l E D lt FVKS gt Gan lt FVXS gt oo x Se DAIKIN 2 Press ON OFF button The OPERATION lamp lights up Nae 150 e aC OFF E To stop operation 3 Press ON OFF button again e Then OPERATION lamp goes off E To chang
71. ay be short depending on the manufactured date of the air conditioner 48 System Configuration Si06 313 Instruction y Preparation Before Operation E To operate the remote controller e To use the remote controller aim the transmitter at the indoor unit If there is anything to block signals between the unit and the remote control ler such as a curtain the unit will not operate Do not drop the remote controller Do not get it wet The maximum distance for communication is about 7 m Receiver E To fix the remote controller holder on the wall 1 Choose a place from where the sig nals reach the unit 2 Fix the holder to a wall a pillar etc with the screws supplied with the holder Remote controller holder 3 Place the remote controller in the remote controller holder e To remove pull it upwards ATTENTION E About remote controller e Never expose the remote controller to direct sunlight e Dust on the signal transmitter or receiver will reduce the sensitivity Wipe off dust with soft cloth Signal communication may be disabled if an electronic starter type fluorescent lamp such as inverter type lamps is in the room Consult the shop if that is the case e If the remote controller signals happen to operate another appliance move that appliance to some where else or consult the shop System Configuration 49 Instruction Si06 313 E To set the clock 1 Press CLOCK butt
72. azing machine so as not to get burnt your hands A Warning Ventilate when refrigerant leaks during the work If refrigerant contacts fire it will cause to arise toxic gas 148 Removal Procedure Si06 313 Outdoor Unit 2 8 Removal of the Compressor Procedure AN Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover R2740 Disconnect the lead wires of the compressor R2742 R2741 Make a note m Be careful so as not to burn the compressor terminals or the name plate U red V yellow W blue N brown Removal Procedure 149 Outdoor Unit Si06 313 Step Procedure Points 3 Unscrew the nut of the compressor Remove the putty of the accumulator m Before working make sure that the refrigerant is empty in the circuit m Be sure to apply nitrogen replacement when heating up the brazed part Heat up the brazed part of the discharge side and disconnect Heat up the brazed part of the suction side and disconnect Lift the compressor up and remove it Accumulator Compressor R2743 R2745
73. ce PCBs Model Type Connector No Control PCB indoor unit S7 S201 S203 Floor Standing Type Power Supply PCB indoor unit S8 S202 S204 gt Correct connections R1400 72 Service Diagnosis Si06 313 Troubleshooting 4 3 Freeze up Protection Control or High Pressure Control Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes AS m High pressure control heat pump model only During heating operations the temperature detected by the indoor heat exchanger thermistor is used for the high pressure control stop outdoor fan stop etc m The freeze up protection control operation halt is activated during cooling operation according to the temperature detected by the indoor unit heat exchanger thermistor m High pressure control During heating operations the temperature detected by the indoor heat exchanger thermistor is above 65 C H Freeze up protection When the indoor unit heat exchanger temperature is below 0 C during cooling operation Operation halt due to clogged air filter of the indoor unit Operation halt due to dust accumulation on the indoor unit heat exchanger Operation halt due to short circuit Detection error due to faulty indoor unit heat exchanger thermistor Detection error due to faulty indoor unit PCB Service Diagnosis 73 Troubleshooting Si06 313 Troubleshootin
74. changer Hooks Pipe plate retaining R2634 R2636 H Mounting screw M4 x 16 AN Caution When removing or re installing heat exchanger be sure to wear protective gloves or wrap heat exchanger with cloths Fins can cut fingers 124 Removal Procedure Si06 313 Indoor Unit 1 6 Removal of the Fan Rotor Fan Motor Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 For removal of the drain pan disconnect the drain hose then dismount the two screws located at left and right sides Remove the drain pan To remove the swing motor on discharge port of the drain pan dismount the two fixing screws R2638 m Be careful not to wet the floor with drain water m Disengage harness for drain pan from right side hook m This swing motor is for down flow shutter R2639 Removal Procedure 125 Indoor Unit Si06 313 Step Procedure Points 4 Dismount the six screws three for the upper side motor and three for the bottom one to remove the fan motors R2640 m Short lead wire for the upper fan motor Long lead wire for the bottom fan motor m Mounting scr
75. cnnnnnnnnos 111 programme dry function cooooccccccncccccccnonacnncnnnannnnnn 20 Drawings amp Flow Charts v Si06 313 R radiation fin temperature rise eee 95 remote controller AA 70 S service monitor PCB oococccnnncccnoncccononcnnnnccconananinanin 13 Service PCB sidra liliana static 11 shutter drive motor shutter limit switch abnormality 78 signal transmission error between indoor and outdoor units 79 SPA Maisto eieiei eege Ces 14 T target discharge pipe temperature contro 38 thermistor cooling only model 27 heat pump model 26 thermistor or related abnormality indoor unit 77 thermistor or related abnormality outdoor unit 91 thermistor resistance check secere 107 trial operation from the remote controller 152 troubleshooting with the LED indication 68 turning speed pulse input on the outdoor unit PCB CHECK A O 112 WwW Wide angle IOUVIES eects eeeeeeeeeeeeneeeeeeenaeeees 18 wiring diagrams FVKS50BVMB coooocccconcccconoccconnconinncananencninanccnns 158 FVXSSOBVMB eerren datan 158 RKSSOBVMB coccccocccccnoccccnncncnnncononncananananinnnccnns 159 RSDO0BVMB tercios do irte 159 DXSGPOBVMA 159 RXSSOBVM Bin EE 159 vi Drawings amp Flow Charts DAIKIN INDUSTRIES LTD DAIKIN EUROPE NV Head office Zandvoordestraat 300 B 8400 Oostende Belgium Umeda Center Bldg 4 12 Nakazaki Nishi 2 chome Kita ku
76. contact Outdoor unit PCB defective Service Diagnosis 95 Troubleshooting Si06 313 Troubleshooting Check No 6 Refer to P 107 Check No 7 Refer to P 108 Check No 9 Refer to P 109 A Caution Turn off the power and turn it on again to get the system started Error displayed again NO Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred YES Check No 6 Check the thermistor resistance value e Fin thermistor Y Check the radiation fin temperature Thermistor as NO specified in its characteristic chart Replace the fin thermistor Above 90 C Check the power transistor and fin for looseness If they are found to be fit YES tightly replace the PCB or Check No 9 Check the outdoor unit fan or related Functioning Radiation fin dirty Slightly dirty the power transistor Malfunctioning Too dirty Replace the fan motor Correct the connectors and fan motor leads Replace the outdoor unit PCB Check No 7 Check the installation condition gt Clean up the radiation fin R2851 96 Service Diagnosis Si06 313 Troubleshooting 4 19 Output Over Current Detection iS Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes
77. d m Be sure to read the following safety cautions before conducting repair work Warnings H The caution items are classified into Warning and A Caution The A Warning items are especially important since they can lead to death or serious injury if they are not followed closely The A Caution items can also lead to serious accidents under some conditions if they are not followed Therefore be sure to observe all the safety caution items described below m About the pictograms A This symbol indicates an item for which caution must be exercised The pictogram shows the item to which attention must be paid E This symbol indicates a prohibited action The prohibited item or action is shown inside or near the symbol This symbol indicates an action that must be taken or an instruction The instruction is shown inside or near the symbol m After the repair work is complete be sure to 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 AN Warning Be sure to disconnect the power cable plug from the plug socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the e
78. d make sure there is continuity Keep the tester in the resistance measuring range When the pointer swings If the pointer does not swing at all it means the capacitor or if it swings all the way functions but does not return it means the capacitor malfunction Q0367 5 1 14 Turning Speed Pulse Input on the Outdoor Unit PCB Check Check No 15 lt Propeller fan motor gt Make sure the voltage of 270 30V is being applied 1 Stop the operation first and then the power off and disconnect the connector S70 2 Make sure there is about DC 270 V between pins 4 and 7 3 With the system and the power still off reconnect the connector S70 4 Make a turn of the fan motor with a hand and make sure the pulse 0 15 V appears twice at pins 1 and 4 If the fuse is blown out the outdoor unit fan may also be in trouble Check the fan too If the voltage in Step 2 is not applied it means the PCB is defective Replace the PCB If the pulse in Step 4 is not available it means the Hall IC is defective Replace the DC fan motor lf there are both the voltage 2 and the pulse 4 replace the PCB PCB 70 7 04 Turning speed pulse input 0 15 V 6 o 5 O 15V 4 3 O nh 2 0 1 O _ gt DC270V _ R2859 Propeller fan motor S70 112 Service Diagnosis Si06 313 Part 7 Removal Procedure A EE 114 1 1 Removal of the Air Filter Front Panel 114 1 2 Removal of the Hori
79. e E To adjust the horizontal blade flap 1 Press SWING button de The display will light up and the flaps will begin to swing SOIREE a OON OFF 2 When the flaps have reached the TEMP desired position press SWING y Co button once more The display will go blank MODE FAN Gau 1 2 The flaps will stop moving SILENT a CANCEL TIMER E To adjust the vertical blades louvres Hold the knob and move the louvre You will find a knob on the left side and the right side blades Notes on flap and louvers angle e Unless SWING is selected you should set the flap at a near horizontal angle in HEAT mode and at a upward position in COOL or DRY mode to obtain the best performance E ATTENTION e When adjusting the flap by hand turn off the unit and use the remote controller to restart the unit e Be careful when adjusting the louvres Inside the air outlet a fan is rotating at a high speed 12 System Configuration 53 Instruction Si06 313 E Air flow selection e Make air flow selection according to what suits you When setting the air flow selection switch to e Air conditioner automatically decides the appropriate blowing pattern depending on the operating mode situation Operating mode Situation Blowing pattern When the room has become fully e So that air does not come into direct cool or when one hour has
80. e difference between a room temperature and the temperature set by the remote controller 3 Frequency command from an indoor unit Frequency initial setting 5 Pl control P Frequency changes by Pl control lt repeats when frequency becomes lower Command frequency X repeats when frequency becomes lower Drooping function Input current control etc Upper limit frequency Upper limit function FMAX ae lt Compressor protection function Skip control Target frequency Initial frequency Lower limit frequency Lower limit function PI control FMIN Four way valve operating compensation etc Defrost control only for heat pump model Command frequency Limit frequency R2831 How to Determine Frequency The compressor s frequency will finally be determined by taking the following steps For Heat Pump Model 1 Determine command frequency Command frequency will be determined in the following order of priority 1 1 Limiting frequency by drooping function H Input current discharge pipes low Hz high pressure limit peak cutting freeze prevention dew prevention fin thermistor temperature 1 2 Limiting defrost control time 1 3 Forced cooling 1 4 Indoor frequency command 2 Determine upper limit frequency m Seta minimum value as an upper limit frequency among the frequency upper limits of the following functions Compressor
81. e mode selected in user s place normal air conditioning mode and forced operation mode for installation and providing service Detail 1 For heat pump model There are following modes stop cooling includes drying heating include defrosting Air conditioner control mode Forced operating mode Forced cooling for Pump Down Operation Normal operating mode Cooling L Heating Defrosting L_ Stop mode except for cooling heating modes by indoor command H Preheat operation t During C capacitor is discharging Stop R2829 2 For cooling only model There are following models stop and cooling including drying Air conditioner control mode Forced operating mode Forced cooling for Pump Down Operation Normal operating mode L Cooling L_ Stop mode except for cooling modes by indoor command H Preheat operation During C capacitor is discharging Stop R2830 H Note Unless specified otherwise an indoor dry operation command must be regarded as cooling operation 28 Function and Control Si06 313 Control Specification 3 2 Frequency Control Outline Detail Frequency will be determined according to the difference between room and set temperature The function is explained as follows 1 How to determine frequency 2 Frequency command from an indoor unit Th
82. e monitor LED Forced operation ON OFF switch Field setting switch Varistor Printed Circuit Board Connector Wiring Diagram Si06 313 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB outdoor unit E AC FU2 3 15A T58e AC DIO 3d VI Vy S10 t S33 wd 1 SH Ve m K S80 IITTTITITOT 2124243424239 S51 101 S90 S20 S40 S91 R2865 PCB 2 Power Supply PCB outdoor unit Service Monitor PCB S52 sw1 FU1 30A LED A R2867 R2866 Printed Circuit Board Connector Wiring Diagram 13 Printed Circuit Board Connector Wiring Diagram Si06 313 MID FU201 3 15A S70 SPM CN14 R2868 lees N SS N A CR S N N N CN11 R S gt OS AS ONY RX a R2869 Printed Circuit Board Connector Wiring Diagram Si06 313 Part 4 Function and Control Te Main FUNCOMS dias 16 Lat Frequency Principle iseis aaa ee eee eee 16 1 2 Wide Angle Louvers and Auto ZGwimg 18 1 3 Fan Speed Control for Indoor Unie 19 1 4 Programme Dry PUNCHON asc ds 20 1 5 Automatic Operator naa 21 18 Night Set Oe aida iii peda 22 1 7 Home Leave Operation estic sitio ta 23 1 8 Inverter Powerful Operation cinto di ede 24 1 97 Other FUNCION Stats is Ee ee 25 2 Function of Main Structural Parts 26 21 Function of Thermistor capis aca 26 3 Control SVSCINGATO
83. e the cable Do not mix air or gas other than the specified refrigerant R410A 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 AN Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If a combustible gas leaks and remains around the unit it can cause a fire Be sure to install the packing and seal on the installation frame properly If the packing and seal are not installed properly water can enter the room and wet the fur
84. e the temperature setting 4 Press TEMPERATURE adjustment button DRY or FAN mode AUTO or COOL or HEAT mode The temperature setting is not variable 10 Press A to raise the temperature and press WY to lower the temperature Set to the temperature you like o Wiel Lt System Configuration 51 Instruction Si06 313 E To change the air flow rate setting 5 Press FAN setting button DRY mode AUTO or COOL or HEAT or FAN mode Five levels of air flow rate setting from a to o plus A 24 are available The air flow rate setting is not variable wm RR Q D D G e Indoor unit quiet operation When the air flow is set to 24 the noise from the indoor unit will become quieter Use this when making the noise quieter The unit might lose power when the fan strength is set to a weak level E To change the air flow direction page 12 NOTE E Note on HEAT operation e Since this air conditioner heats the room by taking heat from outdoor air to indoors the heating capacity becomes smaller in lower outdoor temperatures If the heating effect is insufficient it is rec ommended to use another heating appliance in combination with the air conditioner e The heat pump system heats the room by circulating hot air around all parts of the room After the start of heating operation it takes some time before the room gets warme
85. e thermistor J6 Outdoor heat exchanger thermistor H9 Outdoor air thermistor PCB Replace the indoor unit PCB R2849 92 Service Diagnosis Si06 313 Troubleshooting 4 17 Electrical Box Temperature Rise Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes LI An electrical box temperature rise is detected by checking the radiation fin thermistor with the compressor off With the compressor off the radiation fin temperature is above 80 C above 75 C in the case of 7 1kW class Reset is made when the temperature drops below 70 C Fin temperature rise due to defective outdoor unit fan Fin temperature rise due to short circuit Fin thermistor defective Connector in poor contact Outdoor unit PCB defective Service Diagnosis 93 Troubleshooting Si06 313 Troubleshooting Check No 6 Refer to P 107 Check No 7 Refer to P 108 Check No 9 Refer to P 109 A Caution Turn off the power and turn it on again Error again or outdoor unit fan activated NO Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred AA WARNING To cool down the electricals the outdoor unit fan gets started when the radiation fin temperature rises above 78 C and stops itself when it drops below 70 C YES Check No 6 N Check the
86. e wetting of the building furniture e To avoid oxygen deficiency ventilate the room sufficiently if equipment with burner is used together with the Q etc Do not operate the air conditioner with wet hands q Do not wash the indoor unit with excessive water only use a slightly wet cloth e Do not place things such as vessels containing water or anything else on top of the unit Water may pene SCH SS trate into the unit and degrade electrical insulations resulting in an electric shock Installation site E To install the air conditioner in the following types of environments consult the dealer e Places with an oily ambient or where steam or soot occurs e Salty environment such as coastal areas e Places where sulfide gas occurs such as hot springs e Places where snow may block the outdoor unit The drain from the outdoor unit must be discharged to a place of good drainage Consider nuisance to your neighbours from noises E For installation choose a place as described below e A place solid enough to bear the weight of the unit which does not amplify the operation noise or vibration e A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbours Electrical work e For power supply be sure to use a separate power circuit dedicated to the air conditioner System relocation e Relocating the air conditioner requires specialized knowledge and skills Please cons
87. eat exchanger thermistor temperature Return Reset zone Up zone Unchanged zone Drooping zone Stop zone E R1379 3 7 Heating Peak cut Control Outline Heat Pump Only During heating operation the signals being sent from the indoor unit allow the operating frequency limitation and prevent abnormal high pressure The signal from the indoor unit must be divided as follows Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 min from operation start Control in Each Zone The heat exchange intermediate temperature of indoor unit controls the following Stop zone Drooping zone Unchanged zone Up zone Heat exchanger thermistor Reset zone temperature R1380 Function and Control 33 Control Specification Si06 313 3 8 Fan Control Outline Detail Fan control is carried out according to the following priority Fan ON control for electric component cooling fan Fan control when defrosting Fan OFF delay when stopped ON OFF control in cooling operation Tap control when drooping function is working Fan control in forced operation Fan control in indoor outdoor unit silent operation Fan control in powerful mode Fan control in normal operation OMONOARWN gt Fan OFF Control when Stopped m Fan OFF delay for 60 seconds must be made when the compressor is stopped Tap Control in indoor outdoor unit
88. eck procedure e Four way valve malfunctioning Functionin e Water mixed SS e Stop valve defective Replace the outdoor unit PCB R2846 Service Diagnosis 87 Troubleshooting Si06 313 4 14 Position Sensor Abnormality Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Compressorrelay cable disconnected Troubleshooting Check No 13 Refer to P 111 Hb A compressor startup failure is detected by checking the compressor running condition through the position detection circuit The compressor fails to start in about 15 seconds after the compressor run command signal is sent Clearing condition Continuous run for about 5 minutes normal The system will be shut down if the error occurs 16 times Compressor relay cable disconnected Compressor itself defective Outdoor unit PCB defective Stop valve closed Input voltage out of specification AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Coen Check No 13 Check for short circuit i NO YES Check the electrolytic capacitor voltage NO Replace the outdoor unit PCB outdoor unit fan DC380 30V Electricals NO or compressor harnesses Replace the outdoor unit PCB connected as specified Y Turn off the power Disconnect
89. eds 30 A the compressor gets interrupted too 3 13 3 Insufficient Gas Control Outline If a power consumption is below the specified value in which the frequency is higher than the specified frequency it must be regarded as gas insufficient In addition to such conventional function if the discharge temperature is higher than the target discharge pipe temperature and the electronic expansion valve is fully open 450 pulses more than the specified time it is considered as an insufficient gas Insufficient gas zone Power consumption 55 Hz Frequency R2834 With the conventional function a power consumption is weak comparing with that in the normal operation when gas is insufficient and gas insufficiency is detected by checking a power consumption Gas insufficient zone R1391 When operating with insufficient gas although the rise of discharge pipe temperature is great and the electronic expansion valve is open it is presumed as an insufficient gas if the discharge pipe temperature is higher than the target discharge pipe temperature Detail Judgment by Input Current When an output frequency is exceeds 55 Hz and the input current is less than specified value the adjustment is made for insufficient gas Judgment by Discharge Pipe Temperature When discharge pipe temperature is 20 C higher than target value and the electronic expansion value opening is 450 plus max the adjustment is made for insufficient ga
90. emperature and adjust the electronic expansion valve opening so that the actual discharge pipe temperature become close to that temperature Indirect SH control using the discharge pipe temperature Set the target discharge pipe se temperature as to become an aiming SH a Regard that the inclination cannot be SH changed due to the operating condition R1389 Determine a correction value of the electronic expansion valve compensation and drive it according to the deflection of the target discharge temperature and actual discharge temperature and the discharge temperature variation by the 20 sec 38 Function and Control Si06 313 Control Specification 3 13 Malfunctions 3 13 1 Sensor Malfunction Detection Sensor malfunction may occur either in the thermistor or current transformer CT system Relating to Thermistor Malfunction 1 Outdoor heat exchanger thermistor 2 Discharge pipe thermistor 3 Fin thermistor 4 Outside air thermistor Relating to CT Malfunction When the output frequency is more than 55 Hz and the input current is less than 1 254 carry out abnormal adjustment 3 13 2 Detection of Overload and Over Current Outline In order to protect the inverter detect an excessive output current and for protecting compressor monitor the OL operation Detail m If the OL compressor head temperature exceeds 120 130 C depending on the model the compressor gets interrupted m If the inverter current exce
91. erature thermistor abnormality 77 oe ESk OL activation compressor overload 80 Ek Compressor lock 81 El DC fan lock 82 EB Input over current detection 83 ER Four way valve abnormality 85 FJ Discharge pipe temperature control 87 Fo High pressure control in cooling 102 Ho Position sensor abnormality 88 H CT or related abnormality 89 H Outdoor air thermistor or related abnormality 91 JI Discharge pipe thermistor or related abnormality 91 J5 Heat exchanger thermistor or related abnormality 91 13 Electrical box temperature rise 93 L4 Radiation fin temperature rise 95 L5 Output over current detection 97 PH Radiation fin thermistor or related abnormality 91 Displayed only when system down occurs Service Diagnosis 71 Troubleshooting Si06 313 4 2 Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting EN Note Indoor Unit PCB Abnormality Al Evaluation of zero cross detection of power supply by indoor unit When there is no zero cross detection in approximately 10 continuous seconds m Faulty indoor unit PCB m Faulty connector connection A Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Connector connection check note l Is it normal NO YES Connector Nos vary depending on models gt Repla
92. ew M4 x 16 5 Remove the motors m Loosen the fixing screw to and cross flow fans separate the fan and motor R2641 6 To remove the casing m Casing mounting screw dismount the four Front M4 x 16 screws at front side Rear M4 x 14 and the other four screws at rear side Condition Casing Protruded Not to be removed Semi sink To be removed Sink Not to be removed R2642 126 Removal Procedure Outdoor Unit Si06 313 2 Outdoor Uni Removal of the Panels and Plates 2 1 Be sure to wait 10 minutes or more after turning off all power supplies Warning A before disassembling work Procedure finger by the fins of the heat 5 Oo gt 5 o 2 2 E z o C Q D z 3892 bal KI e Ei ER oO 2 z A g 3 ETAPA 2 E gs E A E nf 3 i 3 E Ed E II ITT Il I 3 nS SK n a Y O Kl Wou a P he RRHH WAN WU OI E WAT D UU i j e WA 5 UA ale B DONANTE UI 11111 WI Ki PE MME MECH oO JOIN RIIT e E INN NI lo E FATAL OAOD ANTATI ATADA DARE INN P gt 5 a TA DI UU HI UNN 2 TE TOTTI LT ITATTA E bi a Q Wal ZS 83 S bal oc o a a o 9 2 la 362 a 52 Bee 0 be o OD o 2 El Eg L 0S o oT gt o 10 0 L g FIEF FE ov 0 D S o co ale a 127 Removal Procedure
93. exchanger of the indoor unit is detected and either the air flow is stopped or is made very weak thereby carrying out comfortable heating of the room The cold air blast is also prevented using a similar control when the defrosting operation is started or when the thermostat gets turned ON Signal Receiving Sign When the indoor unit receives a signal from the remote controller the unit emits a signal receiving sound ON OFF Button on Indoor Unit An ON OFF switch is provided on the front panel of the unit Use this switch when the remote controller is missing or if its battery has run out Every press of the switch changes from Operation to Stop or from Stop to Operation Y DAIKIN ter ood os R3054 ON OFF button m Push this button once to start operation Push once again to stop it H This button is useful when the remote controller is missing m The operation mode refers to the following table Mode Temperature setting Air flow rate Cooling Only COOL 22 C AUTO Heat Pump AUTO 25 C AUTO m Inthe case of multi system operation there are times when the unit does not activate with this button Photocatalytic Deodorizing Filter Photocatalytic Deodorizing Filter demonstrates powerful oxidation characteristics when subjected to harmless ultraviolet light Photocatalytic deodorizing power is recovered simply by exposing the filter to the sun for 6 hours once every 6 months Air Purifyi
94. fference startup at which operation starts point for operation stop 24 C a ERE at 1 5 C 0 5 C 18 C 1 8 C 1 0 C 17 C ON point e Frequency 0 50 switching point OFF point S 5 min 5 min Compressor S S S t t t anil LHz op LHz op LHz op x55Hz Extra low air flow x55Hz Indoor unit fan Extra low air flow Stop Stop Stop Low air flow Low air flow LHz indicates low frequency ltem marked with varies depending on models R1359 20 Function and Control Si06 313 Main Functions 1 5 Automatic Operation Automatic Cooling Heating Function Heat Pump Only When the AUTO mode is selected with the remote controller the microcomputer automatically determines the operation mode from cooling and heating according to the room temperature and setting temperature at the time of the operation startup and automatically operates in that mode The unit automatically switches the operation mode to cooling or heating to maintain the room temperature at the main unit setting temperature Detailed 1 Remote controller setting temperature is set as automatic cooling heating setting Explanation of temperature 18 to 30 C the Function 2 Main unit setting temperature equals remote controller setting temperature plus correction value correction value cooling O deg heating 2 deg 3 Operation ON OFF point and mode switching point are as follows Heating gt Cooling switching point Room temperature gt M
95. function detection oocncccccccnccccnnnnns 39 power transistor check 111 service check function ooooccccccncccnnoccnonoccnnnnnnnnnos 70 Powerful operation oooccccconconinnoncnncnnononnnns 24 40 55 service monitor DCH 13 136 preheating operation e Pa as AE 31 service POB iu deeg 11 122 preparation before operation BE a e 48 AA E ae Ae Aas 131 printed circuit board PCB shutter drive motor abnormality 0assseseeeeeee eeen 78 control PCB indoor unit 11 72 121 shutter limit switch abnormality ceeeeeee 78 control PCB outdoor unit 13 139 signal receiving sign 25 display PCB EEN 11 121 signal transmission error cooooccccccnnnnccccnccncnoonnccnnnnnnns 79 A A 14 sound blaMk6t mononononnnncanicanacacacnnnanaroraranaracacananos 146 power supply PCB indoor unit Ee e 72 122 specifications iia 6 power supply PCB outdoor unit EEN 13 137 SP e lcd o 14 service monitor DCH 13 136 stop valve Cover coococccccconnconononnnncnnnonnnccnnnnnnnannnnnos 130 service DCH 11 122 Vid ido 10 12 C e V EEEE EEEE EEE EEEO TER 14 SW A TAT AEE 10 problem symptoms and meaeuree 69 A A EE 10 12 program dry FUNCTION a a e d e 20 swing ue te 125 ropeller tacita ca tacita 133 prop T R terminal Cover 149 radiation fin temperature A E SE 95 terminal strip O 135 radiation fin hermietor 92 O gege eu rodeeet dE a a a ode SEA eet 152 o A O E 144 thermistor remote
96. he inverter makes it possible to vary the rotation speed of the compressor The following table explains the conversion principle Phase Description 1 The supplied AC power source is converted into the DC power source for the present 2 The DC power source is reconverted into the three phase AC power source with variable frequency E When the frequency increases the rotation speed of the compressor increases resulting in an increased refrigerant circulation This leads to a higher amount of the heat exchange per unit m When the frequency decreases the rotation speed of the compressor decreases resulting in a decreased refrigerant circulation This leads to a lower amount of the heat exchange per unit Drawing of The following drawing shows a schematic view of the inverter principle Inverter Refrigerant circulation rate high lt a high speed Amount of heat Amount of heat exchanged air large m exchanged air large Amount of heat T Amount of heat exchanged air small L exchanged air small low speed m freq 50 Hz ee 60 Hz freq variable capacity Refrigerant circulation rate low R2812 16 Function and Control Si06 313 Main Functions Inverter Features E The inverter provides the following features The regulating capacity can be changed according to the changes in the outside temperature and cooling heating load Quick heating and quick cooling The compressor
97. i06 313 5 1 6 Installation Condition Check Check No 7 Installation condition check y Check the allowable Abnormal Ss dimensions of the air suction Change the position of the air and discharge discharge grille or the installation location Normal the discharged air from other outdoor YES SCH A unit cause an increase of Change the position of the air the suction air discharge grille or the emperature installation location is the h h YES s the heat exchanger Clean the heat exchanger very dirty Is the air flow YES locked b tacl b ockod Sowa in hal Change the installation opposite direction location or direction Check the outside air temperature temperature of air taken in by the outdoor unit The outside air temperature shall be 43 C or lower R1438 108 Service Diagnosis Si06 313 Check 5 1 7 Discharge Pressure Check Check No 8 Discharge pressure check NO Y YES NO Y Is the stop valve open Is the NO Y connection pipe deformed At the heat exchanger and NO air filter dirty YES Y Y 5 1 8 Outdoor Unit Fan System Check With DC Motor Replace compessor Open the stop valve Replace the pipe installed at the site Clean Replace the compressor R1443 Check No 9 Check the outdoor unit fan system H Outdoor
98. ible olo Comfort Outdoor Unit Silent Operation Manual O O Indoor Unit Control Intelligent Eye J etan Flexible Voltage Correspondence O O Quick Warming Function y High Ceiling Application Hot Start Function Chargeless 10m 10m Automatic Defrosting Power Selection 5 Rooms Centralized Controller Automatic Operation Option ei ei ti A Operation Programme Dry Function O O Remote Control Adaptor o o Fan Only O o Remote Normal Open Pulse Contact Option Control New Powerful Operation Non Inverter O Remote Control Adaptor _ o o Inverter Powerful Operation o Normal Open Contact Option Priority Room Setting DIII NET Compatible Adaptor Option O O Cooling Heating Mode Lock Remote Wireless O O le Home Leave Operation O o Controller Wired Indoor Unit On Off Switch O O Signal Reception Indicator O O Temperature Display Another Room Operation Note O Holding Functions No Functions List of Functions Si06 313 List of Functions 1 2 Heat Pump 0 g Zo lt S2 52 ESCHER m gt m gt o gt a gt Category Functions 22 22 Category Functions On ea ND HB 2H 2G ce ie SA Inverter with Inverter Power Control O O y PI
99. ilter Front Panel 114 1 2 Removal of the Horizontal Blade ccececcsecceseccccececeseceeeeeaneeeeneeees 117 Table of Contents iii Si06 313 1 3 Removal of the Electrical Box 118 1 4 Removal of the PC Bech cave a ete etalon det 121 1 5 Removal of the Heat Exchanger ccooccccccnnnocccccccnoncnccccnnnncnnnnanccnnnnnnnnnos 123 1 6 Removal of the Fan Rotor Fan Motor 125 2 e tee EE EE 127 2 1 Removal of the Panels and Plates cccccccccccceccceceeseeeseseeeeeeeeseeeseeess 127 2 2 Removal of the Fan Motor Propeller Fan 131 2 3 Removal of the PCB Electrical Box 135 2 4 Removal of the Heachor 143 2 5 Removal of the Sound Banke 145 2 6 Removal of the Four Way Vahye 147 2 7 Removal of the Electronic Expansion Make AAA 148 2 8 Removal of the Compreseor 149 Part 8 Others EE EES EN LEED EE 152 1 1 Test Run from the Remote Controller cccccccseccececeeeeeceeeeceneeeneees 152 1 2 JUMPER SOT GS 6 ds 153 Part 9 Appendiy ennen ek RER EER KEE rr TOO NK PIPING DIA TEE 156 ede A AR 156 1 2 Qutdoor Unit ito caia a ed en e ae cado edo dae Edo do 157 2 NINO DIAS cin i ise si A NN ra 158 St To US a dae de van 158 22 Outdoor UNIS e ps a Pete aes 159 Index A O EA BITNE A o Re O Sl Drawings amp Flow Charts une ekrER ER EKREER KE KERE KEE KER EE KEE KEE KEE KEE ek venu V iv Table of Contents Si06 313 Introduction 1 Introduction 1 1 Safety Cautions Cautions an
100. ing conditions and also conserves electricity Cooling Operation Temperature setting 1 C EE Temperature setting 0 5 C _ Temperature 7 setting Fora stops at EE set hours Berens Berens e 0 5 Ctemperature shit Night Set Circuit ON p e Temperature setting remains the same e When outside temperature is normal and room temperature is at set temperature When outside temperature is high 27 C or higher R1361 Heating Operation y 2C Thermostat l setting 1 A A Timer operation 1 hour later Night Set Circuit ON R1362 22 Function and Control Si06 313 Main Functions 1 7 Home Leave Operation Outline In order to respond to the customer s need for immediate heating and cooling of the room after returning home or for house care a measure to switch the temperature and air volume from that for normal time over to outing time by one touch is provided This function responds also to the need for keeping up with weak cooling or heating This time we seek for simplicity of operation by providing the special temperature and air volume control for outing to be set by the exclusive button Detail of the 1 Start of Function Control The function starts when the HOME LEAVE button is pressed in cooling mode or heating mode including stopping and powerful operation If this button is pressed while the operation is stopped the function becomes effective when the operation i
101. ing full knowledge of the equipment 42 System Configuration Si06 313 Instruction 2 Instruction 2 1 Safety Precautions y Safety precautions Keep this manual where the operator can easily find them Read this manual attentively before starting up the unit For safety reason the operator must read the following cautions carefully This manual classifies precautions into WARNINGS and CAUTIONS Be sure to follow all precautions below they are all important for ensuring safety AN WARNING AN CAUTION If you do nat follow these instructions exactly the unit may If you do not follow these instructions exactly the unit may cause property damage personal injury or loss of life cause minor or moderate property damage or personal injury O Never do Q Be sure to follow the instructions Never cause the air conditioner including the remote Be sure to earth the air conditioner controller to get wet Never touch the air conditioner including the remote controller with a wet hand bg WARNING e In order to avoid fire explosion or injury do not operate the unit when harmful among which flammable or corrosive gases are detected near the unit SO e Itis not good for health to expose your body to the air flow for a long time e Do not puta finger a rod or other objects into the air outlet or inlet As the fan is rotating at a high speed it will cause injury Do not attempt to repair relocate modify or reins
102. ipment 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 G AGBO YS 1 1 2 Cautions Regarding Products after Repair AN Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or fire When relocating the equipment make sure that the new installation site has sufficient strength to withstand the weight of the equipment If the installation site does not have sufficient strength and if the installation work is not conducted securely the equipment can fall and cause injury Be sure to install the product correctly by using the provided standard installation frame Incorrect use of the installation frame and improper installation c
103. ischarge grille 2 Remove the heat exchanger 3 Disconnect the flared joint of liquid pipe using two wrenches 4 Disconnect the flared joint of gas pipe using two wrenches III wi i TN S LEET iy i Vis tii R2632 1 H In i R2633 R2631 A Warning If refrigerant gas leaks during service work ventilate work area Toxic gas may be generated when refrigerant gas contacts with flame m 14 17 double ended wrench m 17 23 double ended wrench A Caution Do not contaminate any gas including air other than the specified refrigerant R410A Contaminating of air or other gas causes abnormal temperature rise in refrigerating cycle and this results in pipe breakage or personal injuries H After pipes are disconnected close all pipe openings with caps to prevent dust and moisture from entering pipes Removal Procedure 123 Indoor Unit Si06 313 Step Procedure Points 5 Dismount the fixing m Mounting screw M4 x 16 screw to remove the pipe retaining plate of the heat exchanger Push the pipe retaining plate backward to disengage hook then open the retaining plate using straight edge of screw driver to remove the plate Remove the two screws located at left side of the heat exchanger Pull forward left side of the heat exchanger 1 slide to right to disengage hook 2 and remove the heat ex
104. ischarge temperature Set a target discharge temperature depending on the outdoor and indoor heat exchanger temperature Control the electronic expansion valve opening so that the target discharge temperature can be obtained The outdoor heat exchanger thermistor is used for detecting the discharge thermistor disconnected when cooling When the temperature of the discharge piping is lower than the temperature of outdoor heat exchanger a disconnected discharge thermistor can be detected The outdoor heat exchanger thermistor is used for high pressure protection during cooling operation The discharge pipe thermistor is used to control the discharge pipe If the temperature of discharge pipe used in place of the inner temperature of the compressor rises abnormally the operating frequency drops or the operation must be halted The discharge pipe thermistor is used for detecting the discharge thermistor disconnected The indoor heat exchanger thermistor is used for controlling target discharge pipe temperature Set a target discharge pipe temperature according to the outdoor and indoor heat exchanger temperature Control the electronic expansion valve so that the target discharge pipe temperature can be obtained The indoor heat exchanger thermistor is used to prevent freezing During the cooling operation if the temperature drops abnormally the operating frequency becomes lower then the operation must be
105. ity Btu h 16 390 3 070 18 090 20 480 3 070 26 290 16 390 3 070 18 090 20 480 3 070 26 290 kcal h 4 130 770 4 560 5 160 770 6 620 4 130 770 4 560 5 160 770 6 620 Moisture Removal L h 2 9 2 9 Running Current A 7 5 8 2 7 2 7 9 Power Consumption W 1 700 450 2 350 1 870 310 2 600 1 700 450 2 350 1 870 450 2 800 Power Factor 98 6 99 2 98 4 98 6 COP W W 2 82 3 21 2 82 3 21 Ss Liquid mm 06 4 o 6 4 Piping ions ES mm 9 12 7 912 7 Drain mm 20 0 o 20 0 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Indoor Unit FVXS50BVMB FVXS50BVMB Front Panel Color Almond White Almond White H 10 8 381 13 2 466 10 8 381 13 2 466 m min M 9 2 325 11 3 399 9 2 325 11 3 399 Air Flow Rate fm L 7 7 272 9 4 332 7 7 272 9 4 332 SL 6 7 237 8 3 293 6 7 237 8 3 293 Type Cross Flow Fan Cross Flow Fan Fan Motor Output W 14 14 14 14 Speed Steps 5 Steps Silent and Auto 5 Steps Silent and Auto Air Direction Control Right Left Horizontal and Upward Right Left Horizontal and Upward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current A 0 26 0 32 0 25 0 31 Power Consumption W 55 70 55 70 Power Factor 92 0 95 1 91 7 94 1 Temperature Control Microcomputer Control Microcomputer Control Dimensions HxWxD mm 600x650x195 600x650x195 Packaged Dimensions HxWxD mm 714x770x294 714x770x294 Weight kg 13 13 Gross Weight kg 19 19 Geeks H M L SL dBA 44 40 36 33
106. ity and wastes energy Air is also prevented from flowing smoothly through the unit creating a noise Operation with dirty filters 1 cannot deodorize the air 2 cannot clean the air 3 results in poor heating or cooling 4 may cause odour The air purifying filter and Photocatalytic deodorizing filter cannot be reused even if washed In principle there is no need to replace the photocatalytic deodorizing filter Remove the dust peri odically with a vacuum cleaner However it is recommended to replace the filter in the following cases 1 The paper material is torn or broken during cleaning 2 The filter has become extremely dirty after long use To order air purifying filter or Photocatalytic deodorizing filter contact to the service shop where you bought the air conditioner Dispose of old air filters as non burnable waste and Photocatalytic deodorizing filters as burnable waste Item Part No Photocatalytic deodorizing filter with frame KAZ917B41 Photocatalytic deodorizing filter without frame KAZ917B42 Air purifying filter with frame KAF925B41 Air purifying filter without frame KAF925B42 System Configuration 63 Instruction Si06 313 2 11 Troubleshooting y Trouble Shooting These cases are not troubles The following cases are not air conditioner troubles but have some reasons You may just continue using it Case Explanation Operation does not start soon This is
107. ll Bis g E 3 A 21 M o KE h e Baan Rive Sr 39 R d ous 3 201 we E SS E a o 5 Ce AOP2 AOZZIY_HOLSIHYA ue NOSZIV ja E R2627 Removal Procedure 121 Indoor Unit Si06 313 Step Procedure Points 3 Illustration shows the power supply PCB indoor unit m SW2 SW2 1 unused SW2 2 unused SW2 3 unused SW2 4 OFF initial set ON limit upward air flow 4 lllustration shows the service PCB sw2 lt Discharge change over switch gt RI LU Le an Disch Ea Bette R2630 Discharge change over switch m Select f to discharge air only from top discharge port H Select 7 to discharge air with automatic pattern Pagg decided in accordance with operation mode and operation conditions m Itis recommendable to select m IC has been selected before factory shipment 122 Removal Procedure Si06 313 Indoor Unit 1 5 Removal of the Heat Exchanger Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points m Conduct pump down operation and check that gas has been purged completely before starting service work m Mounting screw M4 x 16 1 Dismount the two screws to remove the top d
108. n 2 10 Care and Cleaning y Care and Cleaning AN CAUTION Before cleaning be sure to stop the operation and turn the breaker OFF Units E Indoor unit Outdoor unit and Remote controller 1 Wipe them with dry soft cloth E Front grille 1 Open the front grille e Press the two 5S places on the left and right of PUSH the front grille 2 Remove the front grille e Remove the chain e Allowing the grille to fall forward will enable you to remove it Chain 3 Clean the front grille e Wipe softly with a damp cloth e Only neutral detergent may be used e In case of washing the grille with water dry it with cloth dry it up in the shade after washing 4 Attach the front grille e Insert the front grille into the grooves of the unit 3 places e Attach the chain to the right inner side of the front grille e Close the grille slowly Place front grille in grooves Z CAUTION Hold the front grille firmly so that it does not fall Do not touch the metal parts on the inside of the indoor unit as it may result in injury When removing or attaching the front grille use a robust and stable stool and watch your steps carefully When removing or attaching the front grille support the grille securely with hand to prevent it from falling For cleaning do not use hot water above 40 C benzine gasoline thinner nor other volatile oils pol ishing compound scrubbing brushes nor other hand
109. n the room temperature Use the remote control for trial operation as described below m After trial operation is complete set the temperature to a normal level 26 C to 28 C m For protection the machine disables restart operation for 3 minutes after it is turned off Trial Operation and Testing 1 Measure the supply voltage and make sure that it falls in the specified range 2 Trial operation should be carried out in either cooling or heating mode 3 Carry out the test operation in accordance with the Operation Manual to ensure that all functions and parts such as louver movement are working properly H The air conditioner requires a small amount of power in its standby mode If the system is not to be used for some time after installation shut off the circuit breaker to eliminate unnecessary power consumption m f the circuit breaker trips to shut off the power to the air conditioner the system will restore the original operation mode when the circuit breaker is opened again Trial operation from Remote Controller 1 Press ON OFF button to turn on the system 2 Simultaneously press center of TEMP button and MODE buttons 3 Press MODE button twice CT will appear on the display to indicate that Trial Operation mode is selected 4 Trial run mode terminates in approx 15 minutes and switches into normal mode To quit a trial operation press ON OFF button 3 HOME LEAVE E ammll 2 Cm 4 POWERFUL
110. n turning on the power set the opening position and develop pressure equalizing 3 12 2 Pressure Equalization Control When the compressor is stopped open and close the electronic expansion valve and develop pressure equalization 3 12 3 Opening Limit Outline Limit a maximum and minimum opening of the electronic expansion valve Detail m A maximum electronic expansion valve opening 450 pulses m A minimum electronic expansion valve opening 54 pulses The electronic expansion valve is fully closed in the room where cooling is stopped and is opened with fixed opening during defrosting 3 12 4 Starting Operation Control Control the electronic expansion valve opening when the system is starting and prevent the system to be super heated or moistened 3 12 5 High Temperature of the Discharge Pipe When the compressor is operating if the discharge pipe temperature exceeds a certain value open the electronic expansion valve and remove the refrigerant to the low pressure side and lower discharge temperature 3 12 6 Disconnection of the Discharge Pipe Thermistor Outline Detect a disconnected discharge pipe thermistor by comparing the discharge pipe temperature with the condensation temperature If any is disconnected open the electronic expansion valve according to the outdoor air temperature and the operating frequency and operate for a specified time and then stop After 3 minutes of waiting restart the unit and check if any is di
111. nd remove it AAA ct Stop valve cover R2685 R2686 R2687 claws m The stop valve cover has six 130 Removal Procedure Si06 313 Outdoor Unit 2 2 Removal of the Fan Motor Propeller Fan Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points m Remove the top panel and the front panel 1 Remove the electrical box cover 1 Loosen the screw on the back of the shelter 2 Undo the two claws and remove it 3 Release the four claws of the electrical box cover and remove it tw WMD A n SUN a NA Electrical box cover Fi R2690 m This procedure is not necessary to remove the propeller fan only m The claws have been released since the front panel was removed Removal Procedure 131 Outdoor Unit Si06 313 Step Procedure Points TM HE d ks A O FIS AY AS NN AN ES AE Ns A Y 2 R2691 2 Remove the fan
112. ng Filter A double structure made up of a bacteriostatic filter and an Air Purifying Filter traps dust mildew mites tobacco smoke and allergy causing pollen Replace the Air Purifying Filter once every 3 months Mold Proof Air Filter The filter net is treated with mold resisting agent TBZ harmless colorless and odorless Due to this treatment the amount of mold growth is much smaller than that of normal filters Self Diagnosis Digital Display The microcomputer continuously monitors main operating conditions of the indoor unit outdoor unit and the entire system When an abnormality occur the LCD remote controller displays error code These indications allow prompt maintenance operations Auto restart Function Even if a power failure including one for just a moment occurs during the operation the operation restarts in the condition before power failure automatically when power is restored Note It takes 3 minutes to restart the operation because the 3 minute standby function is activated Function and Control 25 Function of Main Structural Parts Si06 313 2 Function of Main Structural Parts 2 1 Function of Thermistor 2 1 1 Heat Pump Model A Outdoor Heat Exchanger Thermistor DCB B Discharge Pipe Thermistor DOT C Indoor Heat Exchanger Thermistor DCN Electrontic A expansion valve Four way valve Compressor R2827 The outdoor heat exchanger thermistor is used for controlling target d
113. niture and floor For integral units only 1 1 3 Inspection after Repair AN Warning Check to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet all the way If the plug has dust or loose connection it can cause an electrical shock or fire 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 vii Introduction Si06 313 A Warning Do not use a joined power cable or extension cable or share the same power outlet with other electrical appliances since it can cause an electrical shock excessive heat generation or fire AN Caution Check to see if the parts and wires are mounted and connected properly and if the connections at the soldered or crimped 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 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 ca
114. ntrol 23 Main Functions Si06 313 1 8 Inverter Powerful Operation Outline In order to exploit the cooling and heating capacity to full extent operate the air conditioner by increasing the indoor fan rotating speed and the compressor frequency Details of the When Powerful button is pushed in each operation mode the fan speed setting temperature will Control be converted to the following states in a period of twenty minutes Operation mode Fan speed Target set temperature Cooling H tap 90 rpm 18 C Dry Dry rotating speed Normally targeted 50 rpm temperature in dry operation Approx 2 C Heating H tap 90 rpm 30 C Fan H tap 90 rpm Automatic Same as cooling The target is kept heating in Powerful unchanged operation Ex Powerful operation in cooling mode Target temp r 7 EE Sr SSS eer ee Sesser JOS SS Se RS SSS R See Set temp 18 C Powerful ON Powerful OFF Fan i EE EK Ending condition or in 1 to 3 i 1 80rpm 1 TPF ends 1 H tap AO e 2 Stop 1 3 Powerful operation is OFF 1 1 Set tap l i R2823 24 Function and Control Si06 313 Main Functions 1 9 1 9 1 1 9 2 1 9 3 1 9 4 1 9 5 1 9 6 1 9 7 1 9 8 Other Functions Hot Start Function Heat Pump Only In order to prevent the cold air blast that normally comes when heating is started the temperature of the heat
115. o 6 Thermistor resistance check Ne Replace the thermistor Replace the indoor unit PCB YES Replace the indoor unit PCB R1403 DH Indoor heat exchanger thermistor 3 Room temperature thermistor Service Diagnosis 77 Troubleshooting Si06 313 4 6 Shutter Drive Motor Shutter Limit Switch Abnormality Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Check No 3 Refer to P 104 z The shutter open close performance is detected by the limit switch attached on its structure In this way the shutter drive motor and the shutter limit switch are checked for failure When the shutter is open the limit switch is closed or vice versa Shutter drive motor defective Shutter limit switch defective Shutter itself deformed warped Shutter s sealing material too thick Detection error by broken relay harness or disconnected connector Detection error due to defective PCB Foreign substance in blow port Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn off the power YES riese Remove such substance TNO Check No 3 Check the limit switch continuity i NO Limit switch on power Replace the limit switch YES Open the shutter and turn on the power Relay harne
116. o stop it oa fF ON on O E Outdoor Unit 16 Air inlet Back and side 17 Refrigerant piping and inter unit cable 18 Drain hose e The operation mode refers to the following table Temperature Air flow Mode soning rate COOL 22 C AUTO AUTO 25 C AUTO e This switch is useful when the remote controller is missing 13 Signal receiver e Signals are received from the remote controller e When the unit receives a signal you will hear a FVKS FVXS short beep e Operation start beep beep e Settings changed beep e Operation stop beeeeep 14 Air outlet selection switch 15 Room temperature sensor e It senses the air temperature around the unit 19 Earth terminal e Itis inside of this cover 20 Air outlet Appearance of the outdoor unit may differ from some models 46 System Configuration Si06 313 Instruction E Remote Controller HOME LEAVE 3 C2 POWERFUL lt ARC433A5 A6 gt 1 Signal transmitter e It sends signals to the indoor unit 2 Display e It displays the current settings In this illustration each section is shown with all its displays ON for the purpose of explanation 3 HOME LEAVE button for HOME LEAVE operation page 16 4 POWERFUL button for POWERFUL operation page 14 5 TEMPERATURE adjustment buttons e It changes the temperature setting 6 ON OFF button
117. occccccnocccccoccnncnonccnnnccnnnnnnns 80 kk Compressor doc isis ti a o 81 410 DC Gah Locarno dad 82 4 11 Input Over Current Detection ek 83 4 12 Four Way Valve Abnormality AAA 85 4 13 Discharge Pipe Temperature Control 87 4 14 Position Sensor Abnormality ooconoccccnnnoccconnnnonccnnnnncncnnnnnnancncnnnnannnnnnnns 88 4 15 CT or Related Abnormality Akku 89 4 16 Thermistor or Related Abnormality Outdoor Un 91 4 17 Electrical Box Temperature Rise AA 93 4 18 Radiation Fin Temperature Rise AAA 95 4 19 Output Over Current Detechon ENNEN 97 4 20 INSUPICIONE Lage ciencia laa 99 4 21 Low voltage Detection ia 101 4 22 High Pressure Control in Cooling cccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeennaeeeees 102 E A O A ets 104 A VO CICK A ch deat wustatesnedivede E A A 104 Service Diagnosis 67 Caution for Diagnosis Si06 313 1 Caution for Diagnosis The Operation lamp flashes when any of the following errors is detected 1 When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions disabling equipment operation 2 When a signal transmission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Location of Operation Lamp R2664 Troubleshooting with the LED Outdoor Unit Indication
118. on DAIKIN Ooo is displayed blinks 2 Press TIMER setting button to set the clock to the present time HOME LEAVE Holding down A or W button rapidly increases or decreases the time display 3 Press CLOCK button blinks a OON OFF POWERFUL TEMP y 2 E Turn the breaker ON e Turning ON the breaker opens the flap then closes it again This is a normal pro 1 3 cedure NOTE E Tips for saving energy Be careful not to cool heat the room too much Keeping the temperature setting at a moderate level helps save energy Recommended temperature setting o Cover windows with a blind ora curtain l i For cooling 26 C 28 C Blocking sunlight and air from outdoors increases the cooling heating effect For heating 20 C 24 C e Clogged air filters cause inefficient operation and waste energy Clean them once in about every two weeks E Please note e The air conditioner always consumes 15 35 watts of electricity even while it is not operating e If you are not going to use the air conditioner for a long period for example in spring or autumn turn the breaker OFF e Use the air conditioner in the following conditions Mode Operating conditions If operation is continued out of this range COOL Outdoor temperature 3 4MK X 10 to 46 C A safety device may work to stop the operation RK X 10 to 46 C In multi system it may work to stop the oper
119. or can be detected The outdoor heat exchanger thermistor is used for high pressure protection during cooling operation The discharge pipe thermistor is used to control the discharge pipe If the temperature of discharge pipe used in place of the inner temperature of the compressor rises abnormally the operating frequency drops or the operation must be halted The discharge pipe thermistor is used for detecting the discharge thermistor disconnected The indoor heat exchanger thermistor is used for controlling target discharge pipe temperature Set a target discharge pipe temperature according to the outdoor and indoor heat exchanger temperature Control the electronic expansion valve opening so that the target discharge pipe temperature can be obtained The indoor heat exchanger thermistor is used to prevent freezing During the cooling operation if the temperature drops abnormally the operating frequency becomes lower then the operation must be halted The indoor heat exchanger thermistor is used for anti icing control During the cooling operation if the heat exchanger temperature in the room where operation is halted becomes 1 C or if the room temperature heat exchanger in the room where operation is halted becomes gt 10 C it is assumed as icing Function and Control 27 Control Specification Si06 313 3 Control Specification 3 1 Mode Hierarchy Outline There are two modes th
120. ormal Normal Check No 6 Heat exchanger thermistor check Abnormal gt Replace the electronic expansion valve or coil Replace the PCB gt Replace the heat exchanger thermistor Replace PCB R2855 Service Diagnosis 103 Check Si06 313 5 Check 5 1 How to Check 5 1 1 Fan Motor Connector Output Check Check No 01 Check No 02 1 Check connector connection 2 Check motor power supply voltage output pins 4 7 and 4 8 3 Check motor control voltage pins 4 3 4 Check rotation command voltage output pins 4 2 5 Check rotation pulse input pins 4 1 Upper fan connector Lower fan connector 7 O gt Motor power supply voltage 8 O gt Motor power supply voltage 6 o Unused 7 Oo Unused 5 o Unused 6 Oo Unused 4 O P OV reference potential 5 O Unused 3 O gt Motor control voltage 15 VDC 4 O P OV reference potential 2 O gt Rotation command voltage 1 5 VDC 3 O Motor control voltage 15 VDC 1 O kW Rotation pulse input 2 O Rotation command voltage 1 to 5 VDC 1 O k Rotation pulse input R1224 1 Check connector connection 2 Check motor control voltage output pins 2 1 202 O Motor power supply voltage O Unused O Unused O HF P OV reference potential O rh Motor control power supply NOAA R1073 5 1 2 Limit Switch Continuity check Check No 3 Remove the front grille The limit switch is located
121. oth will not be dried and avoid excessive heating Keep below 120 C In case of the difficulty with gas brazing machine 1 Disconnect the brazed part where is easy to disconnect 3 Heat up every brazed and restore part in turn and 2 Cut pipes on the main unit by disconnect Wy a miniature copper tube SE m Be sure to apply nitrogen replacement when heating up the brazed part Y cutter in order to make it easy to disconnect H Note Do not use a metal saw for cutting pipes by all means because the sawdust come into the circuit Removal Procedure 147 Outdoor Unit Si06 313 2 7 Removal of the Electronic Expansion Valve Procedure Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the electronic expansion valve coil Remove the sheets of putty m Before working make sure that the refrigerant is empty in the circuit Heat up the two brazed parts of the electronic expansion valve and disconnect m Be sure to apply nitrogen replacement when heating up the brazed part Electronic expansion valve coil d R2737 ek R2738 R2739 A Caution Be careful about the electronic expansion valve pipes and so on which were heated up by a gas br
122. other 60 operation seconds for system protection E While the air conditioner is not in operation e When the outdoor temperature is very high the out door fan starts rotating for system protection The operation stopped E For system protection the air conditioner may stop suddenly operating on a sudden large voltage fluctuation OPERATION lamp is on It automatically resumes operation in about 3 minutes 25 64 System Configuration Si06 313 Instruction Check again Please check again before calling a repair person Case Check The air conditioner does not e Hasn t a breaker turned OFF or a fuse blown operate e Isn t it a power failure OPERATION lamp is off e Are batteries set in the remote controller e Is the timer setting correct Cooling Heating effect is poor Are the air filters clean e Is there anything to block the air inlet or the outlet of the indoor and the outdoor units Is the temperature setting appropriate Are the windows and doors closed Are the air flow rate and the air direction set appropriately Are the air filters clean Is there anything to block the air inlet or the outlet of the indoor and the outdoor units Clean the air filters or take all obstacles away and turn the breaker OFF Then turn it ON again and try operating the air conditioner with the remote controller If the lamp still flashes call the service shop where you bought the air conditioner Operation sto
123. oving the dust with a vacuum cleaner place the filter in the sun for approximately 6 hours By drying the photocatalytic deodorizing filter in the sun its deodorizing and antibacterial capabilities are regenerated e Because the filter material is paper it can not be cleaned with water e It is recommended dry the filter once every 6 months Replacement 1 Detach the filter element and attach a new one 23 62 System Configuration Si06 313 Instruction Check Chec k that the base stand and other fittings of the outdoor unit are not decayed or corroded Chec k that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit Chec k that the earth wire is not disconnected or broken e if Check that the drain comes smoothly out of the drain hose during COOL or DRY operation vice shop if this is the case no drain water is seen water may be leaking from the indoor unit Stop operation and consult the ser E Before a long idle period 1 Operate the fan only for several hours on a fine day to dry out the inside es Press MODE button and select fan operation es Press ON OFF button and start operation Clean the air filters and set them again Take out batteries from the remote controller Turn OFF the breaker for the room air conditioner NOTE 24 Operation with dusty air filters lowers the cooling heating capac
124. peration and turn the breaker OFF for wait for a while system protection Disposal requirements Dismantling of the unit treatment of the refrigerant oil and eventual other parts should be done in accordance with the relevant local and national regulations We recommend periodical maintenance In certain operating conditions the inside of the air conditioner may get foul after several seasons of use resulting in poor performance It is recommended to have periodical maintenance by a specialist aside from regular cleaning by the user For specialist maintenance contact the service shop where you bought the air conditioner The maintenance cost must be born by the user 27 3P098587 1F 66 System Configuration Si06 313 Part 6 Service Diagnosis 1 Caution ENEE E 68 2 Problem Symptoms and Measures en 69 3 Service Check Function la 70 4 Troubleshooting EE 71 4 1 Error Codes and Description uk 71 4 2 Indoor Unit PCB Abnormality oooonnnccccnnnnnccccnnoncccnnconancconnnnanccnnnananccnnnnns 72 4 3 Freeze up Protection Control or High Pressure Control 73 4 4 Fan Motor DC Motor or Related Abnormaltv eenen 75 4 5 Thermistor or Related Abnormality Indoor Un 77 4 6 Shutter Drive Motor Shutter Limit Switch Abnormality 78 4 7 Signal Transmission Error between Indoor and Outdoor Units 79 4 8 OL Activation Compressor Overload ooooccono
125. ping zone Unchanged 13 zone Reset zone R1378 When a stop current continues for 2 5 seconds after rushing on the stop zone the compressor operation stops If a drooping current is continues for 1 0 second after rushing on the drooping zone the frequency will be 2 Hz drooping Repeating the above drooping continues until the current rushes on the drooping zone without change In the unchanged zone the frequency limit will remain In the return reset zone the frequency limit will be cancelled Limitation of current drooping and stop value according to the outdoor air temperature 1 In case the operation mode is cooling m The current droops when outdoor air temperature becomes higher than a certain level model by model 2 Incase the operation mode is heating only for heat pump model m The current droops when outdoor air temperature becomes higher than a certain level model by model 32 Function and Control Si06 313 Control Specification 3 6 Freeze up Protection Control During cooling operation the signals being sent from the indoor unit allow the operating Outline frequency limitation and then prevent freezing of the indoor heat exchanger The signal from the indoor unit must be divided into the zones as the followings Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 sec from operation start Control in Each Zone H
126. protection input current discharge pipes Low Hz high pressure peak cutting freeze prevention defrost Determine lower limit frequency m Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions Four way valve operating compensation draft prevention pressure difference upkeep 4 Determine prohibited frequency m There is a certain prohibited frequency such as a power supply frequency Di For Cooling Only Model 1 Determine command frequency m Command frequency will be determined in the following order of priority 1 1 Limiting frequency by drooping function Input current discharge pipes freeze prevention dew prevention fin thermistor temperature 1 2 Indoor frequency command 2 Determine upper limit frequency m Seta minimum value as an upper limit frequency among the frequency upper limits of the following functions Compressor protection input current discharge pipes freeze prevention dew prevention fin thermistor temperature Function and Control 29 Control Specification Si06 313 3 Determine lower limit frequency m Seta maximum value as an lower limit frequency among the frequency lower limits of the following functions Pressure difference upkeep 4 Determine prohibited frequency m There is a certain prohibited frequency such as a power supply frequency Indoor Frequency Command AD signal The difference between a room temperature and
127. ps suddenly OPERATION lamp flashes An abnormal functioning The air conditioner may malfunction with lightning or radio happens during operation waves Turn the breaker OFF turn it ON again and try operating the air conditioner with the remote controller 26 System Configuration 65 Instruction Si06 313 Call the service shop immediately bg WARNING When an abnormality such as a burning smell occurs stop operation and turn the breaker OFF Continued operation in an abnormal condition may result in troubles electric shocks or fire Consult the service shop where you bought the air conditioner Wo not attempt to repair or modify the air conditioner by yourself Incorrect work may result in electric shocks or fire Consult the service shop where you bought the air conditioner If one of the following symptoms takes place call the service shop immediately E The power cord is abnormally hot or damaged E An abnormal sound is heard during operation E The safety breaker a fuse or the earth leakage breaker Turn the breaker cuts off the operation frequently OFF and call the E A switch or a button often fails to work properly service shop E There is a burning smell E Water leaks from the indoor unit E After a power failure E Lightning The air conditioner automatically resumes If lightening may strike the neighbouring area operation in about 3 minutes You should just stop o
128. quipment 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 repair 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 OPS DA Introduction Si06 313 AN Caution Do not repair the electrical components with wet hands Working on the equipment with wet hands can cause an electrical shock Do not clean the air conditioner by splashing water Washing the unit with water can cause an electrical shock Be sure to provide the grounding when repairing the equ
129. r e In heating operation frost may occur on the outdoor unit and lower the heating capacity In that case the system switches into defrosting operation to take away the frost e During defrosting operation hot air does not flow out of indoor unit e At the start of heater operation so that air does not blow directly on an individual air blows in an upward direction After the blowing air gets warmer the air will blow according to memorised air flow direction and rates E Note on DRY operation e The computer chip works to rid the room of humidity while maintaining the temperature as much as possible It automatically controls temperature and fan strength so manual adjust ment of these functions is unavailable E Note on AUTO operation e In AUTO operation the system selects a temperature setting and an appropriate operation mode COOL or HEAT based on the room temperature at the start of the operation e The system automatically reselects setting at a regular interval to bring the room temperature to user setting level e H you do not like AUTO operation you can manually select the operation mode and setting you like E Note on air flow rate setting e At smaller air flow rates the cooling heating effect is also smaller 11 52 System Configuration Si06 313 Instruction 2 5 Adjusting the Air Flow Direction y Adjusting the Air Flow Direction You can adjust the air flow direction to increase your com fort DAIKIN L
130. r Maximum approx 10 minutes E NIGHT SET MODE When the OFF TIMER is set the air conditioner automatically adjusts the temperature setting 0 5 C up in COOL 2 0 C down in HEAT to prevent excessive cooling heating for your pleasant sleep 18 System Configuration 59 Instruction Si06 313 E To use ON TIMER operation e Check that the clock is correct If not set the clock to the present time page 9 Press ON TIMER button BB is displayed blinks Press TIMER Setting button until the time setting reaches the point you like e Every pressing of either button increases or decreases the time setting by 10 minutes Holding down either but ton changes the setting rapidly Press ON TIMER button again The TIMER lamp lights up Vly Ox a ale E To cancel ON TIMER operation 4 Press CANCEL button e The TIMER lamp goes off DAIKIN OME LEAVE POWERFUL E To combine ON TIMER and OFF TIMER e A sample setting for combining the two timers is shown below Example Present time 11 00 PM The unit operating OFF TIMER at 0 00 a m ON TIMER at 7 00 a m ATTENTION E In the following cases set the timer again e After a breaker has turned OFF e After a power failure e After replacing batteries in the remote controller Combined 19 60 System Configuration Si06 313 Instructio
131. ring error gt Correct the indoor unit outdoor unit connection wires y NO Check the outdoor unit s LED A y Is LED A flashing Diagnose the outdoor unit YES Check the voltage of the indoor unit outdoor unit connection wires between No 1 and No 2 and between No 2 and No 3 Y YES Is the voltage 0 V Replace the connection wires between the indoor and outdoor units y NO Check No 10 Check power supply waveform i i NO Replace indoor uni l Is there any disturbance gt ca indoor unit contro YES gt Locate the cause of the disturbance of the power supply waveform and correct it R2840 Service Diagnosis 79 Troubleshooting Si06 313 4 8 OL Activation Compressor Overload Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Check No 4 Refer to P 105 Check No 5 Refer to P 106 Check No 6 Refer to P 107 Check No 11 Refer to P 110 ES A compressor overload is detected through compressor OL m f the compressor OL is activated twice the system will be shut down m The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time The operating temperature condition is not specified Refrigerant shortage Four way valve malfunctioning Outdoor unit PCB defec
132. rotational speed is increased when starting the heating or cooling This enables a quick set temperature Air discharge temperature Bas ADC Jeer EE SC To N inverter BEN yee normal heat pump T T Start mm 60 120 300 seconds R1187 Even during extreme cold weather the high capacity is achieved It is maintained even when the outside temperature is 2 C Comfortable air conditioning A detailed adjustment is integrated to ensure a fixed room temperature It is possible to air condition with a small room temperature variation Energy saving heating and cooling Once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power Frequency Limits The following table shows the functions that define the minimum and maximum frequency Frequency limits Limited during the activation of following functions Low Four way valve operation compensation Refer to page 31 High E Input current control Refer to page 32 Compressor protection function Refer to page 31 m Heating peak cut control Refer to page 33 H Freeze up protection control Refer to page 33 Em Defrost control Refer to page 35 Forced Cooling Operation For more information refer to Forced operation mode on page 40 Function and Control 17 Main Functions Si06 313 1 2 Wide Angle Louvers and Auto Swing Wide Angle Louvres Auto Swing
133. s Function and Control 39 Control Specification Si06 313 3 14 Forced Operation Mode Outline Detail Forced operating mode includes only forced cooling Forced Cooling Item Forced Cooling Forced operation allowing conditions 1 The outdoor unit is not abnormal and not in the 3 minute stand by mode 2 The operating mode of the outdoor unit is the stop mode 3 The forced operation is ON The forced operation is allowed when the above and conditions are met Starting adjustment If the forced operation switch is pressed as the above conditions are met 1 Command frequency m 66 Hz 2 Electronic expansion valve opening E Depending on the capacity of the indoor unit 3 Outdoor unit E Compressor is in operation adjustment 4 Indoor unit E Transmit the command of forced adjustment draft to the indoor unit End 1 When the forced operation switch is pressed again 2 The operation is to end automatically after 15 min Others The protect functions are prior to all others in the forced operation 3 15 Additional Function 3 15 1 Powerful Operation Mode Compressor operating frequency is increased to P1 Max Max Hz of operating room and outdoor unit airflow rate is increased 3 15 2 Voltage Detection Function Power supply voltage is detected each time equipment operation starts 40 Function and Control Si06
134. s 1 When the timer cancel button is held down for 5 seconds a 20 indication flashes on the temperature display section lt ARC433A5 A6 gt R3035 2 Press the timer cancel button repeatedly until a continuous beep is produced m The code indication changes in the sequence shown below and notifies with a long beep No Code No Code No Code 1 00 11 El 21 Un 2 Uu 12 a 22 AS 3 F3 13 Hp 23 ya 4 ER 14 J3 24 Ea 5 L5 15 H 25 PY 6 AG 16 1 26 L3 7 E5 17 DW 27 L4 8 LE 18 E 28 H6 9 CH 19 Ks 29 Hi 10 UD 20 d 30 ue EN Note 1 A short beep and two consecutive beeps indicate non corresponding codes 2 To cancel the code display hold the timer cancel button down for 5 seconds The code display also cancels itself if the button is not pressed for 1 minute 70 Service Diagnosis Si06 313 Troubleshooting 4 Troubleshooting 4 1 Error Codes and Description Code Indication Description i g System 90 Normal UO Insufficient gas 99 uc Low voltage detection 101 uy Signal transmission error between indoor and outdoor units 79 Geh Hi Indoor unit PCB abnormality 72 AS Freeze up protection control or high pressure control 73 AG Fan motor or related abnormality 75 cy Heat exchanger thermistor abnormality 77 a Shutter drive motor shutter limit switch abnormality 78 cg Room temp
135. s started If this button is pressed in powerful operation the powerful operation is reset and this function becomes effective m The HOME LEAVE button is ineffective in dry mode and fan mode 2 Details of Function A mark representing HOME LEAVE is indicated on the liquid crystal display of the remote controller The indoor unit is operated according to the set temperature and air volume for HOME LEAVE which were pre set in the memory of the remote controller The LED Red of indoor unit representing HOME LEAVE lights up It goes out when the operation is stopped 3 End of Function The function ends when the HOME LEAVE button is pressed again during HOME LEAVE operation or when the powerful operation button is pressed Scene lt cooling gt SW 2 j 3 WI H MA Home leave Ka Home leave operation Set temp Normal operation Normal operation t Time Start Home Se operation Stop Home have operation R1366 Scene lt Heating gt Al a 9 et DPA Dei emm mm d Home leave tae ENEE Weem O A Home leave operation Normal operation i Normal operation Time A A Start Home leave operation Stop Home leave operation R1367 Others The set temperature and set air volume are memorized in the remote controller When the remote controller is reset due to replacement of battery it is necessary to set the temperature and air volume again for HOME LEAVE Function and Co
136. sconnected If any is disconnected stop the system after operating for a specified time If the disconnection is detected 4 times in succession then the system will be down Detail Detect Disconnection If a 630 second timer for open control becomes over and a 9 minute timer for the compressor operation continuation is not counting time the following adjustment must be made 1 When the operation mode is cooling When the discharge pipe temperature is lower than the outdoor heat exchanger temperature the discharge pipe thermistor disconnection must be ascertained 2 When the operation mode is heating only for heat pump model When the discharge pipe temperature is lower than the max temperature of operating room heat exchanger the discharge pipe thermistor disconnection must be ascertained Adjustment when the thermistor is disconnected When compressor stop repeats specified time the system should be down Function and Control 37 Control Specification Si06 313 3 12 7 Control when frequency is changed When the target discharge pipe temperature control is active if the target frequency is changed for a specified value in a certain time period cancel the target discharge pipe temperature control and change the target opening of the electronic expansion valve according to the shift 3 12 8 Target Discharge Pipe Temperature Control Obtain the target discharge pipe temperature from the indoor and outdoor heat exchanger t
137. ss broken or connector disconnected YES Reconnect the connector or Shutter closed replace the relay harness gt Replace the shutter drive motor or the PCB gt Check the shutter s sealing material YES Shutter opening itself gt Check the shutter for deformation or its sealing material R3055 78 Service Diagnosis Si06 313 Troubleshooting 4 7 Signal Transmission Error between Indoor and Outdoor Units Remote UU Controller Display Method of The data received from the outdoor unit in indoor unit outdoor unit signal transmission is Malfunction checked whether it is normal Detection Malfunction When the data sent from the outdoor unit cannot be received normally or when the content of Decision the data is abnormal Conditions Supposed E Faulty outdoor unit PCB Causes m Faulty indoor unit PCB m Indoor unit outdoor unit signal transmission error due to wiring error m Indoor unit outdoor unit signal transmission error due to disturbed power supply waveform m Indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units wire No 2 Troubleshooting A Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check No 10 Check the indoor unit outdoor unit Refer to P 110 connection wires 1 o YES Is there any wi
138. t 2 gt gt 2 o gt a or a Category Functions 22 Sa Category Functions 22 On mw no mi no SE so SE celia io te Inverter with Inverter Power Control O g o Air Purifying Filter with Bacteriostatic o O Operation Limit for Cooling CDB a ae Virustatic Functions Basic 46 46 Function Operation Limit for Heating CWB Photocatalytic Deodorizing Filter O O _ Air Purifying Filter with Photocatalytic PAM Control S Deodorizing Function Oval Scroll Compressor eg Health amp Longlife Filter Swing Compressor O O Clean Ultra Longlife Filter Option Compressor SE Rotary Compressor Mold Proof Air Filter O O Reluctance DC Motor O O Wipe clean Flat Panel Power Airflow Flap Washable Grille O O Power Airflow Dual Flaps Filter Cleaning Indicator Power Airflow Diffuser Good Sleep Cooling Operation Comfortable Wide Angle Louvers O O Ti 24 Hour On Off Timer O O imer Airflow Vertical Auto Swing Up and Down O O Night Set Mode O O Horizontal Auto Swing Right and Left Auto Restart after Power Failure O O 3 D Airflow _ Worry Free Self Diagnosis Digital LED Display O O 3 Step Airflow H P Only Reliability amp Wiring Error Check Durability Auto Fan Speed O O X Anticorrosion Treatment of Outdoor o le Indoor Unit Silent Operation O O Heat Exchanger Night Quiet Mode Automatic eS Multi Split Split Type Compat
139. tacases tesa eacec oeteeueebns issues vecesecenee reeeaciacke 70 4 e A A A O 71 4 1 Error Codes and Description uk 71 4 2 Indoor Unit PCB ADNORMality i Reeder ia 72 4 3 Freeze up Protection Control or High Pressure Control 73 4 4 Fan Motor DC Motor or Related Abnormaltv 75 4 5 Thermistor or Related Abnormality Indoor Un 77 4 6 Shutter Drive Motor Shutter Limit Switch Abnormality 78 4 7 Signal Transmission Error between Indoor and Outdoor Units 79 4 8 OL Activation Compressor Overload oooocccnoocccccccocccccccannccnncnnancnonannnns 80 4 9 COMpressor LOCK esti cid 81 AAO DCs e RE 82 4 11 Input Over Current Detection ek 83 4 12 Four Way Valve Abnormality AAA 85 4 13 Discharge Pipe Temperature Control 87 4 14 Position Sensor Abnormality AAA 88 4 15 CT or Related Abnormality cocinando atrae 89 4 16 Thermistor or Related Abnormality Outdoor Un 91 4 17 Electrical Box Temperature RISC ecccceeeeeeeeeeeseeeeeeeeeeeeeeeeeeeeees 93 4 18 Radiation Fin Temperature Rise AAA 95 4 19 Output Over Current Detechon ENNEN 97 A A 99 4 21 Low voltage Detecta lios 101 4 22 High Pressure Control in Cooling oooococcconocc nonancccnonacaccnnnanancccnnnnancnnn 102 Be CO A EE ARE conan Deeyse nts ihe AAEE haere 104 Bil HOWE to Check EE 104 Part 7 Removal Procedure cssssccccnenennnencnenenennneneeenenmnnnsseeenmnases 113 Tes INGOO Nu EE EENEG 114 1 1 Removal of the Air F
140. tage is detected by checking the CT detected input current value and the compressor running frequency Gas shortage detection II A gas shortage is detected by checking the difference between indoor unit heat exchanger temperature and room temperature as well as the difference between outdoor unit heat exchanger temperature and room temperature Gas shortage detection Input current lt A A Hz x Compressor running frequency x Voltage B However when the status of running frequency gt 55 Hz is kept on for a certain time Note The values are different from model to model A B R410A 1756 256 50 Gas shortage detection II If a gas shortage error takes place 4 times successively the system will be shut down The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time m Refrigerant shortage refrigerant leakage m Poor compression performance of compressor H Discharge pipe thermistor disconnected or indoor unit or outdoor unit heat exchanger thermistor disconnected room or outside air temperature thermistor disconnected m Stop valve closed m Electronic expansion valve defective Service Diagnosis 99 Troubleshooting Si06 313 Troubleshooting Check No 4 Refer to P 105 Check No 6 Refer to P 107 AN Be sure to turn off power switch before connect or disconnect connector
141. tall the air conditioner by yourself Incorrect work will cause electric shocks fire etc For repairs and reinstallation consult your Daikin dealer for advice and information reason any refrigerant happens to leak into the room make sure it does not come in contact with any flame as of gas heaters kerosene heaters or gas range e Ifthe air conditioner is not cooling heating properly the refrigerant may be leaking so call your dealer When carrying out repairs accompanying adding refrigerant check the content of the repairs with our service staff e Do not attempt to install the air conditioner by your self Incorrect work will result in water leakage electric shocks or fire For installation consult the dealer or a qualified technician e In order to avoid electric shock fire or injury if you detect any abnormally such as smell of fire stop the operation and turn off the breaker And call your dealer for instructions bg CAUTION e The air conditioner must be earthed Incomplete earthing may result in electric shocks Do not connect the earth line to a gas pipe water pipe lightening rod or a telephone earth line e The refrigerant used in the air conditioner is safe Although leaks should not occur if for some Q animals or works of art e Never expose little children plants or animals directly to the air flow Do not place appliances which produce open fire in places exposed to the air flow from the unit or under
142. te Motor may break when the motor y NO connector is Check No 01 wale Y Check output of fan remaining motor connector Stop fan motor power supply Is rotation number command pulse generated NO Replace fan motor and indoor PCB 2 Y Check No 01 Check output of fan motor connector Y Replace indoor unit PCB 2 Replace fan motor Is rotation umber command pulse generated NO Replace indoor unit PCB 2 R1214 76 Service Diagnosis Si06 313 Troubleshooting 4 5 Thermistor or Related Abnormality Indoor Unit Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions E Note Supposed Causes Troubleshooting Check No 6 Refer to P 107 LES The temperatures detected by the thermistors are used to determine thermistor errors When the thermistor input is more than 4 96 V or less than 0 04 V during compressor operation reference When above about 212 C less than 120 ohms or below about 50 C more than 1 860 kohms The values vary slightly in some models m Faulty connector connection m Faulty thermistor m Faulty PCB AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the connector connection N Q gt Correct the connection YES Check N
143. th Removal Procedure 135 Outdoor Unit Si06 313 Step Procedure Points fo QU 5 Se a o Uc 5 o SH G A R2701 Claws R2702 m Insert the two claws of the lower part and the one claw of the upper back when reassembling 2 Disconnect harnesses 1 Loosen the fixing screw of the cable way board Cable way board E Service monitor PCB LED A Green AN Initial setting OFF R2704 136 Removal Procedure Si06 313 Outdoor Unit Step Procedure Points 2 Push the claw up to release the cable way board Open the cable way board Disconnect the harnesses from the power supply PCB HL black to the terminal strip HE2 yellow green to the terminal strip earth HAC1 black from the control PCB AC1 HE1 yellow green from the control PCB E Disconnect the connectors of the front side S20 electronic expansion valve S40 overload protector S80 four way valve S90 thermistors discharge pipe outdoor air heat exchanger R2705 R2708 m Po
144. the harnesses U V and W Y Check with the inverter checker YES Reconnect as specified Inverter checker Part No 1225477 Correct the power supply or NO replace the outdoor unit PCB Replace the compressor R2847 88 Service Diagnosis Si06 313 Troubleshooting 4 15 CT or Related Abnormality Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes HO A CT or related error is detected by checking the compressor running frequency and CT detected input current The compressor running frequency is below 55 Hz and the CT input is below 0 1 V The input current is also below 1 25 A H f this error repeats 4 times the system will be shut down H The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time Power transistor defective Internal wiring broken or in poor contact Reactor defective Outdoor unit PCB defective Service Diagnosis 89 Troubleshooting Si06 313 Troubleshooting Check No 12 Refer to P 111 AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn off the power and turn it on again Y Get the system started Running current as shown at right with
145. the indoor unit It may cause incomplete combustion or deformation of the unit due to the heat e Do not block air inlets nor outlets Impaired air flow may result in insufficient performance or trouble e n order to avoid any quality deterioration do not use the unit for cooling precision instruments food plants S System Configuration 43 Instruction Si06 313 Do not stand or sit on the outdoor unit Do not place any object on the unit to avoid injury do not remove the fan guard e Do not place anything under the indoor or outdoor unit that must be kept away from moisture In certain conditions moisture in the air may condense and drip e After a long use check the unit stand and fittings for damage e Do not touch the air inlet and alminum fins of outdoor unit H may cause injury e The appliance is not intended for use by young children or infirm persons without supervision e Young children should be supervised to ensure that they do not play with the appliance air conditioner e Before cleaning be sure to stop the operation turn the breaker off or pull out the supply cord e Do not connect the air conditioner to a power supply different from the one as specified It may cause trou ble or fire e Depending on the environment an earth leakage breaker must be installed Lack of an earth leakage breaker may result in electric shocks e Arrange the drain hose to ensure smooth drainage Incomplete draining may caus
146. the shafts at both ends to the pivot holes R2615 Removal Procedure 117 Indoor Unit Si06 313 1 3 Removal of the Electrical Box Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Set the horizontal blade in horizontal position to take out the front grille forward Remove the setting screw to remove the wire clamp Se Vr IN i Barre i Bua Le EI BC R2617 3 Disconnect the four connectors of the lead wire C TA Lead wire for swing motor R2618 118 Removal Procedure Indoor Unit Si06 313 Step Procedure Points 4 Remove the room temperature thermistor Room temperature thermistor R2619 Thermistor 5 Remove the heat retaining exchanger thermistor spring f LZ Heat exchanger thermistor R2621 Heat exchanger THT thermistor H d L m Be sure not to drop the A thermistor retaining spring AT MT R2620 6 Dismount the two screws to remove the drip proof plate
147. the system will be shut down m f the temperature being detected by the discharge pipe thermistor rises above 120 C the compressor will stop The error is cleared when the temperature has dropped below 107 C Stop temperatures in case of 5 0kW class 1 110 C above 45Hz rising above 40Hz dropping 2 102 C 30 45Hz rising 25 40Hz dropping 3 98 C below 30Hz rising below 25Hz dropping H The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time H Refrigerant shortage Four way valve malfunctioning Discharge pipe thermistor defective heat exchanger or outdoor temperature thermistor defective Outdoor unit PCB defective Water mixed in the local piping Electronic expansion valve defective Stop valve defective AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check No 6 Malfunctioning Check the thermistors l gt Replace a defective e Discharge pipe thermistor thermistor e Outdoor unit heat exchanger thermistor e Outdoor temperature thermistor Functioning Check No 4 Check the electronic expansion valve Malfunctioning Replace the valve itself or the coil Functioning Check No 11 Malfunctioning Check the refrigerant line Refer to the refrigerant line e Refrigerant shortage ch
148. the remote control ler display 2 Adjust the set temperature with A or W as you like 3 Adjust the air flow rate with FAN setting button as you like Home leave operation will run with these settings the next time you use the unit To change the recorded information repeat steps 1 3 16 System Configuration 57 Instruction Si06 313 E What s the HOME LEAVE operation Is there a set temperature and air flow rate which is most comfortable a set temperature and air flow rate which you use the most HOME LEAVE operation is a function that allows you to record your favorite set tem perature and air flow rate You can start your favorite operation mode simply by pressing the HOME LEAVE button on the remote controller This function is convenient in the following situations E Useful in these cases 1 Use as an energy saving mode Set the temperature 2 3 higher cooling or lower heating than normal Setting the fan strength to the lowest setting allows the unit to be used in energy saving mode Also convenient for use while you are out or sleeping e Every day before you leave the house gt gt A oN m HA BA K When you go out push the HOME LEAVE When you return you will be wel Push the HOME LEAVE Operation Operation button and the air conditioner comed by a comfortably air condi button again and the air conditioner will adjust capacity
149. tion is Saa 28 3 1 Meel gege Zeene EE acti 28 3 2 e Ee 29 3 3 Controls at Mode Changing Gtart up 31 3 4 Discharge Pipe Temperature Control 32 3 5 JEE Control ageet See ge 32 3 6 Freeze up Protection Control 33 3 7 Heating Peak cut Control eege das add daa pda nie 33 3 8 Fan Controla usada 34 3 9 Moisture Protection Function 2 0 0 0 cccccecceescececeeeeeeseeeeeeceeeeeeeeeeeeeeseees 34 3 10 Low Hz High Pressure Limit 2 ceccceeeceeeeeeeeeeeseeeeeeeeeeeeeeeeeeeneeeeeeees 35 SU Defrost Control EE 35 3 12 Electronic Expansion Valve Control 36 3 13 Ma INUIMCHONIS via diana 39 3 14 Forced Operation Mode ek 40 3 15 Additional FUNCION coi ia 40 ii Table of Contents Si06 313 Part 5 System ConfiguratiON ccommoococcocooooononoconoonnonn nono enn een 44 1 System Configura crap Eet 42 2 JEE ee 43 2 1 Safety Precautions us ideen nee r ee 43 2 2 Names Of PARAS ui 45 2 3 Preparation before Operation ENNEN 48 2 4 AUTO DRY COOL HEAT FAN Operation ccooooccccccnnnccccccnoncnccccnnnannnnnnnos 51 2 5 Adjusting the Air Flow Direction A 53 2 6 POWERFUL Operation ui ed EE 55 2 7 OUTDOOR UNIT SILENT Operation 56 2 8 HOME LEAVE Operation gege dis esl a 57 29 TIMER Operation ssis ia 59 2 10 Gare Rer ue EE 61 2 11 TROUDIGSHOOUIMG DEE 64 Part 6 Service Diagnosls enner EEK EE KEE KEE KEE KEE nono OF 1 Caution for RI ie ie 68 2 Problem Symptoms and Measures ee 69 3 Service Check Function 2 cit caite
150. tive Water mixed in the local piping Electronic expansion valve defective Stop valve defective MN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred s i E YES Discharge pipe thermistor gt Insert the thermistor in disconnected position NO Check No 6 Malfunctioning Check the thermistors e e gt Replace the discharge pipe Discharge pipe thermistor thermistor Functioning Check No 4 Malfunctioning s Check the electronic expantion gt Replace the valve itself or valve the coil Functioning Check No 5 Malfunctioning Check the four way valve Replace the four way valve coil or the valve itself Replace the outdoor unit C Functioning PCB Check No 11 Check the refrigerant line GN Refer to the refrigerant line Refrigerant shortage check procedure Water mixed Stop valve defective Functioning Replace the outdoor unit PCB R2841 80 Service Diagnosis Si06 313 Troubleshooting 4 9 Compressor Lock Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Eb A compressor lock is detected by checking the compressor running condition through the position detection circuit The position detection circuit detects a compressor frequency of below 10
151. to reach the preset tioned room will adjust capacity to the set tem temperature for HOME LEAVE Operation perature for normal operation e Before bed Set the unit to HOME LEAVE Opera The unit will maintain the temper When you enter the living room in the morn tion before leaving the living room ature in the room at a comfortable ing the temperature will be just right when going to bed level while you sleep Disengaging HOME LEAVE Opera tion will return the temperature to that set for normal operation Even the coldest winters will pose no problem 2 Use as a favorite mode Once you record the temperature and air flow rate settings you most often use you can retrieve them by press ing HOME LEAVE button You do not have to go through troublesome remote control operations NOTE e Once the temperature and air flow rate for HOME LEAVE operation are set those settings will be used whenever HOME LEAVE operation is used in the future To change these settings please refer to the Before using HOME LEAVE operation section above e HOME LEAVE operation is only available in COOL and HEAT mode Cannot be used in AUTO DRY and FAN mode e HOME LEAVE operation runs in accordance with the previous operation mode COOL or HEAT before using HOME LEAVE operation e HOME LEAVE operation and POWERFUL operation cannot be used at the same time Last button that was pressed has priority e The operation mode cannot
152. ubleshooting Si06 313 4 22 High Pressure Control in Cooling Remote Fo Controller Display Method of High pressure control stop frequency drop etc is activated in the cooling mode if the Malfunction temperature being sensed by the heat exchanger thermistor exceeds the limit Detection Malfunction Activated when the temperature being sensed by the heat exchanger thermistor rises above Decision 60 C Deactivated when the said temperature drops below 50 C Conditions Supposed m The installation space is not large enough Causes m Faulty outdoor unit fan H Faulty electronic expansion valve H Faulty defrost thermistor m Faulty outdoor unit PCB H Faulty stop valve m Dirty heat exchanger 102 Service Diagnosis Si06 313 Troubleshooting Troubleshooting Check No 4 Refer to P 105 Check No 6 Refer to P 107 Check No 7 Refer to P 108 Check No 9 Refer to P 109 AN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the installation space y Check No 7 gt Change the air outlet grille position Change the installation location Clean the heat exchanger gt Replace the fan motor Repair the connector or fan motor lead wires Installation condition Abnormal check Check No 9 Abnormal Outdoor fan check d Normal Check No 4 Electronic expansion valve check Abn
153. ult the dealer if reloca tion is necessary for moving or remodeling 44 System Configuration Si06 313 Instruction 2 2 Names of Parts y Names of parts E Indoor Unit E Opening the front grille How to open the grille page 22 Air outlet selection switch 12 13 d This setting blows air from upper outlet only p e This setting automatically decides a blow E pattern depending on mode and conditions e This setting is gt recommended 14 ef The unit is shipped from the E factory with this setting Bi a a Air outlet pe selection A CAUTION Before opening the front grille be sure to stop the operation and turn the breaker OFF Do not touch the metal parts on the inside of the indoor unit as it may result in injury System Configuration 45 Instruction Si06 313 E Outdoor Unit 20 m Indoor Unit 1 Photocatalytic deodorizing filter and Air purifying filter e These filters are attached to the inside of the air filters Air outlet Display Front grille Louvres vertical blades page 12 e The louvres are inside of the air outlet Air inlet Air filter Flap horizontal blade page 12 9 Operation lamp green 10 TIMER lamp yellow page 18 11 HOME LEAVE lamp red page 16 12 Indoor Unit ON OFF switch e Push this switch once to start operation Push once again t
154. urrent due to compressor failure Over current due to defective power transistor Over current due to defective inverter main circuit electrolytic capacitor Over current due to defective outdoor unit PCB Error detection due to outdoor unit PCB Over current due to short circuit Service Diagnosis 83 Troubleshooting Si06 313 Troubleshooting Check No 7 Refer to P 108 Check No 8 Refer to P 109 Check No 14 Refer to P 112 MN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred An input over current may result from wrong internal wiring If the wires have been disconnected and reconnected for part replacement for example and the system is interrupted by an input over current take the following procedure Get restarted and measure the input current NO Input current flowing above its stop level Check No 14 Check the main circuit electrolytic capacitor NO Normal Replace the outdoor unit PCB YES Turn off the power and disconnect the harnesses U V and W Y Check with the inverter checker YES Replace the electrolytic capacitor Inverter checker Part No 1225477 Any LED off NO Turn off the power and reconnect the harnesses Turn on the power again and get restarted Check No 8 Check the discharge pressure Check No
155. use an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and floor 1 1 4 Using Icons Icons are used to attract the attention of the reader to specific information The meaning of each icon is described in the table below 1 1 5 Using Icons List Icon Type of Description Information Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Note Caution A caution is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get Caution an unexpected result or has to restart part of a procedure Warning A warning is used when there is danger of personal injury A 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 Si06 313 Part 1 List of Functions A NO 2 ES Cooling ONY eea aaea EE E anee aire 2 1 2 Heat PUM DEE 3 List of Functions 1 List of Functions Si06 313 1 List of Functions 1 1 Cooling Only sa m m faa 0 SH gt 2 g
156. voltage Detection Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Ue An abnormal voltage rise or drop is detected by checking the detection circuit or DC voltage detection circuit m An over voltage signal is fed from the over voltage detection circuit to the microcomputer or the voltage being detected by the DC voltage detection circuit is judged to be below 150 V for 0 1 second m The system will be shut down if the error occurs 16 times m Clearing condition Continuous run for about 60 minutes normal m Supply voltage not as specified m Over voltage detector or DC voltage detection circuit defective m PAM control part s defective MN Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the supply voltage j Supply voltage as NO specified gt Correct the power supply YES Precaution before turning on the power again Make sure the power has been off for at least 30 seconds Turn on the YES p Disturbance factors power again P Check for such factors for a System restarted Noise _ Power supply distortion long term Try to get restarted a couple of times Repeata couple of times Replace the SPM Replace the outdoor unit PCB R2854 Service Diagnosis 101 Tro
157. w Control 19 high pressure control in cooling 102 automatic operation ee eceeceeeeeeeeeeeeeetteeeeeeeeneeees 21 Home Leave operation 23 EI ln TEEN 18 i c indoor unit PCB abnormality ooonoconncccnnoccccnancccnno 72 capacitor voltage check 111 input Current Control 32 check No Dt iil citar dale 104 input over current detechon 83 Check No D 104 installation condition check AA 108 Check No EE 104 INSUFFICIENT GAS seite a aaan a EaR 99 Check NO 04 oir 105 insufficient gas Control 39 Check No DO ceci iii 106 inverter features oooonooccccnnnocccccnnonennccnnnnnrncnnnnnnn cnn 17 Check No Up 107 inverter powerful operatton 24 Check NO 07 Aude lite pitan 108 inverter units refrigerant system check 110 check No OG iii ENEE EES 109 check NGO A ee 109 J Check NOTO aida taifa 110 jumper settings nianse ieaiai 153 Check Ve E ME 110 chock Noi 111 L check No IB ninia 111 limit switch continuity check AA 104 Check No 4 cere tii adas 112 low Hz high pressure limit ooo ococnnnnnnncnnnnnnnccccns 35 check NO AS ui ddi a 112 low voltage detection oooooncocccccnncconccccnnnnnncncnnnnnnos 101 compressor lOCK AA 81 compressor protection function ee 31 M control PCB indoor unt 11 main circuit electrolytic capacitor check 112 control PCB outdoor un 13 MID alzan 14 CT or related abnormaltv 89 mode hierarchy serseri TA 28 D N DC fan lotka a celts dates 82 Night Set mode
158. wer supply PCB outdoor unit HE1 V3 varistor HAC1 HE2 HL FU1 250V 30A soldered R2707 Removal Procedure 137 Outdoor Unit Si06 313 Step Procedure Points 5 Loosen the screw of the control PCB Ci PES 6 Undo the two claws and release the control PCB from the ditch of the front side Disconnect the harnesses while opening the control PCB S10 to the terminal strip AC2 to the terminal strip Disconnect the connectors S51 to the service monitor PCB S101 to the service monitor PCB Sr Nek 10 WW ee H R2709 AC2 white LA Bit Geh AZ E dy PAAVI R2711 138 Removal Procedure Si06 313 Outdoor Unit Step Procedure Points 9 Disconnect the connectors S31 to the SPM S32 to the SPM S33 to the MID S71 to the MID 91 fin thermistor Control PCB outdoor unit S10 to the terminal strip 20 electronic expansion valve S31 to CN14 of the SPM S32 to CN11 of the SPM S33 to S34 of the MID S40 overload protector S51 to S52 of the service monitor PCB S71 to S72 of the MID S80 four way valve S90 thermistors discharge pipe outdoor air heat exchanger 91 fin thermistor 101
159. when the outdoor air temperature is below 5 C 10 C for Europe Diagnosis with remote controller 71 indication Equipment operates but Check for wiring and piping errors in Conduct the wiring piping error check described does not cool or does not the indoor and outdoor units on the product diagnosis nameplate heat only for heat pump connection wires and pipes model Check for thermistor detection errors Check to make sure that the main unit s thermistor has not dismounted from the pipe holder Check for faulty operation of the Set the units to cooling operation and compare electronic expansion valve the temperatures of the liquid side connection pipes ofthe connection section among rooms to check the opening and closing operation of the electronic expansion valves of the individual units Diagnosis with remote controller Kg 71 indication Diagnosis by service port pressure Check for insufficient gas 110 and operating current Large operating noise and Check the output voltage of the 111 vibrations power transistor Check the power transistor Check the installation condition Check to make sure that the required spaces for installation specified in the Technical Guide etc are provided Service Diagnosis 69 Service Check Function Si06 313 3 Service Check Function In the ARC433A series remote controller the temperature display sections on the main unit indicate corresponding code
160. witching sound as the four way valve coil switches from ON to OFF when the heating is stopped the delay switch of the four way valve must be carried out after the operation stopped Detail The OFF delay of four way valve Energize the coil for 150 sec after unit operation is stopped 3 3 3 Four Way Valve Operation Compensation Outline Heat Pump Only At the beginning of the operation as the four way valve is switched acquire the differential pressure required for activating the four way valve by having output the operating frequency which is more than a certain fixed frequency for a certain fixed time Detail Staring Conditions 1 When starting compressor for heating 2 When the operating mode changes from the previous time 3 When starting compressor for starting defrosting or resetting 4 When starting compressor for the first time after the reset with the power is ON Set the lower limit frequency to 55 model by model Hz for 70 seconds with the OR conditions with 1 through 4 above 3 3 4 3 Minutes Stand by Prohibit to turn ON the compressor for 3 minutes after turning it off Except when defrosting Only for Heat Pump Model 3 3 5 Compressor Protection Function When turning the compressor from OFF to ON the upper limit of frequency must be set as follows The function must not be used when defrosting only for heat pump model Frequency FCG 3 85 FCG 2 70 FCG 1 55 D se TCG
161. zontal Blade eoeoennnnnenenenenrnrnrnerererrrrrrereererrenne 117 1 3 Removal of the Electrical Box 118 Lk Removal of the POB usina a dee 121 1 5 Removal of the Heat Exchanger AAA 123 1 6 Removal of the Fan Rotor Fan Motor 125 PADNE o ool A EEN 127 2 1 Removal of the Panels and Plates oocccccconnnnccccocononncnonnonccncannnnnns 127 2 2 Removal of the Fan Motor Propeller Fan 131 2 3 Removal of the PCB Electrical Box 135 2 4 Removal of the Heachor 143 2 5 Removal of the Sound Banke 145 2 6 Removal of the Four Way ValvVe ooocccnconoonccccccnnnononnnannccnnnnnnnnnnanannos 147 2 7 Removal of the Electronic Expansion Make AAA 148 2 8 Removal of the Compreseor 149 Removal Procedure 113 Indoor Unit Si06 313 l 1 1 Indoor Unit Removal of the Air Filter Front Panel Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Appearance Operation panel m Enlarged illustration shows operation panel section Front panel Suction port Top discharge port Bottom discharge port Signal receiving section R2604 Motion of push lock 2 Remove the front panel ne from the unit o ol Push on the left and Ki right upper parts of the When push When push panel marked with the lock plate the plate PUSH to open the draws

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