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Vivax ACP-12CT32AEI/I, Service Manual

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Vivax ACP-12CT32AEI/I Service Manual Download Page 48

MCAC-UTSM-2008-04 

Troubleshooting 

Outdoor Units 

51 

4. E4 malfunction 
 
                         
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 

 
 
5. E5 malfunction 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 

LED indicates E4 

Check  whether  the  wiring  of  the  outdoor  ambient  temperature 
sensor (T4) is break off 

Replace outdoor main board 

 

Judge 1: Outdoor ambient temp. sensor (T4) is malfunction 

Connect the wiring well 

Yes 
 

No 

Check whether the resistance of outdoor ambient temperature 
sensor (T4) is wrong refer to the Annex 1 
 

Yes 
 

Replace outdoor ambient 
temperature sensor (T4) 

No 
 

LED indicates E5 

Outdoor unit voltage protection 

Check  the  voltage  of  outdoor  unit  power  supply,  whether  the 
voltage between L1 and N is about 198-254V

 

 

No 
 

Replace the power board, then check whether the system can 
run normally 
   

Check the power supply 

Yes 
 

Replace outdoor

 

main board 

Yes 
 

Trouble is solved 

 

No 
 

PDF 

文件使用

 "pdfFactory Pro" 

试用版本创建

 

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Summary of Contents for ACP-12CT32AEI/I

Page 1: ...ACP 12CT32AEI I ACP 12CT32AEI O RoHS Service manual ENG ...

Page 2: ......

Page 3: ...tures 7 2 Specifications 8 3 Dimensions 12 4 Service Space 13 5 Wiring Diagrams 14 6 Air Velocity and Temperature Distributions 16 7 Capacity Tables 17 8 Electric Characteristics 21 9 Sound Levels 22 10 Exploded View 23 11 Accessories 25 PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 4: ...cations as a floor standing floor model it can be semi or fully recessed without loss of capacity 5 High efficiency filter built in Formaldehyde nemesis filter active carbon and biological anti virus filter is optional 6 Comfort flexible air blow vertical auto swing and wide angle louvers ensure that warm air reaches the furthest corners of the room and increase the air flow coverage Low noise ope...

Page 5: ...G74 480ml HAF68D1 580ml Model RD 280 20 8A RD 280 20 8A Type DC MOTOR DC MOTOR Input w 18 28 Capacitor μF Indoor fan motor Speed hi mi lo r min 420 460 560 610 680 530 680 780 840 890 a Number of rows 2 2 b Tube pitch a x row pitch b mm 21 13 37 21 13 37 c Fin spacing mm 1 3 1 3 d Fin type code Hydrophilic aluminum Hydrophilic aluminum e Tube outside dia and type mm Ф7 Inner groove tube Ф7 Inner g...

Page 6: ...Net Gross weight kg 42 45 62 66 Type R410A R410A Refrigerant Charged volume g 1400 1700 Throttle type Capillary EXV Design pressure MPa 4 2 2 0 4 2 2 0 Liquid side Gas side mm φ6 4 12 7 φ6 4 12 7 Max refrigerant pipe length m 4 6 Max difference in level Outdoor is up m 4 6 Refrigerant piping Max difference in level Outdoor is down m 4 6 Power wiring mm2 3 core x 1 5 3 core 2 5 Connection wiring Si...

Page 7: ...68D1 580ml Model RD 280 20 8A RD 280 20 8A Type DC MOTOR DC MOTOR Input w 18 28 Capacitor μF Indoor fan motor Speed hi mi lo r min 420 460 560 610 680 530 680 780 840 890 a Number of rows 2 2 b Tube pitch a x row pitch b mm 21 13 37 21 13 37 c Fin spacing mm 1 3 1 3 d Fin type code Hydrophilic aluminum Hydrophilic aluminum e Tube outside dia and type mm Ф7 Inner groove tube Ф7 Inner groove tube f ...

Page 8: ...2 45 62 66 Type R410A R410A Refrigerant Charged volume g 1400 1700 Throttle type Capillary EXV Design pressure Hi Lo MPa 4 2 2 0 4 2 2 0 Liquid side Gas side mm φ6 4 12 7 φ6 4 12 7 Max refrigerant pipe length m 10 20 Max difference in level Outdoor is up m 5 10 Refrigerant piping Max difference in level Outdoor is down m 5 10 Power wiring Indoor mm2 3 core x 1 5 Power wiring Outdoor mm 2 3 core 2 ...

Page 9: ...Dimensions MCAC UTSM 2008 04 12 Indoor units 3 Dimensions ACP 12CT32AEI I Q MFA 18HRDN1 Q PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 10: ...MCAC UTSM 2008 04 Service Space Indoor units 13 4 Service Space PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 11: ...O MU SW103 RESERVED THE S ECOND STRONG ES T LEVEL OF AIR FLOW R ATE FACT ORY SETTING EFFECTIVE IN POWERFUL M O DE T HE STRONGEST L EVEL OF A IR FLOW RATE MFA 18HRDN1 Q MAIN CONTROL BOARD ROOM PIPE WHITE BLACK CN7 Y G L N COMM CN20 CN11 CN5 CN1 CN2 CN14 CN15 C N101 SWITCH BOARD CN1 0 DISPLAY BOARD C N2 01 C N2 02 C N1 6 FAN TO WIRE CONTROLLER XS1 XS5 XP1 XP5 CN1 2 0 RT2 RT1 XT1 M1 FAN 4 W AY TERMIN...

Page 12: ... MO MU SW10 3 RESERVED THE SECOND STRONGEST LEVEL OF AIR FLOW RATE FACTORY SETTING EFF ECTIVE IN POWERFUL MODE THE STRONGEST LEVEL OF AIR FLOW RATE MFA 18HRDN1 MAIN CONTROL BOARD L N ROOM PIPE WHITE BLACK CN7 Y G L N COMM CN20 C N11 CN5 CN1 CN2 CN1 4 CN1 5 CN101 SWITCH BOARD CN10 DIS PLAY BOARD CN201 CN202 CN16 FAN TO WIRE CONTROLLER X S1 XS5 X P1 XP5 C N1 20 R T2 R T1 X T1 M1 FAN 6 WAY T ER MINAL...

Page 13: ...city and Temperature Distributions MCAC UTSM 2008 04 16 Indoor units 6 Air Velocity and Temperature Distributions Discharge angle 60 Airflow velocity Temperature PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 14: ...2 86 0 90 3 30 1 08 3 50 1 17 3 70 1 26 3 78 1 27 3 86 1 28 39 00 2 42 0 73 2 86 0 90 3 30 1 08 3 50 1 18 3 70 1 27 3 78 1 27 3 86 1 28 41 00 2 42 0 73 2 86 0 91 3 30 1 09 3 50 1 18 3 70 1 27 3 78 1 28 3 86 1 29 43 00 2 42 0 73 2 86 0 91 3 30 1 09 3 50 1 19 3 70 1 28 3 78 1 28 3 86 1 29 Heating Indoor temperature C DB 16 18 20 21 22 24 Outdoor air temp TC PI TC PI TC PI TC PI TC PI TC PI C DB C WB...

Page 15: ...97 1 57 5 27 1 70 5 57 1 83 5 69 1 84 5 82 1 86 39 00 3 65 1 06 4 31 1 32 4 97 1 58 5 27 1 71 5 57 1 84 5 69 1 85 5 82 1 87 41 00 3 65 1 06 4 31 1 32 4 97 1 58 5 27 1 72 5 57 1 85 5 69 1 86 5 82 1 87 43 00 3 65 1 07 4 31 1 33 4 97 1 59 5 27 1 72 5 57 1 86 5 69 1 87 5 82 1 88 Heating Indoor temperature C DB 16 18 20 21 22 24 Outdoor air temp TC PI TC PI TC PI TC PI TC PI TC PI C DB C WB kW kW kW kW...

Page 16: ...3 30 1 03 3 50 1 12 3 70 1 20 3 78 1 21 3 86 1 22 39 00 2 42 0 69 2 86 0 86 3 30 1 03 3 50 1 12 3 70 1 21 3 78 1 21 3 86 1 22 41 00 2 42 0 70 2 86 0 87 3 30 1 04 3 50 1 13 3 70 1 21 3 78 1 22 3 86 1 23 43 00 2 42 0 70 2 86 0 87 3 30 1 04 3 50 1 13 3 70 1 22 3 78 1 22 3 86 1 24 Heating Indoor temperature C DB 16 18 20 21 22 24 Outdoor air temp TC PI TC PI TC PI TC PI TC PI TC PI C DB C WB kW kW kW ...

Page 17: ...7 1 54 5 27 1 67 5 57 1 80 5 69 1 81 5 82 1 82 39 00 3 65 1 04 4 31 1 29 4 97 1 55 5 27 1 68 5 57 1 81 5 69 1 81 5 82 1 83 41 00 3 65 1 04 4 31 1 30 4 97 1 55 5 27 1 68 5 57 1 82 5 69 1 82 5 82 1 84 43 00 3 65 1 05 4 31 1 30 4 97 1 56 5 27 1 69 5 57 1 82 5 69 1 83 5 82 1 85 Heating Indoor temperature C DB 16 18 20 21 22 24 Outdoor air temp TC PI TC PI TC PI TC PI TC PI TC PI C DB C WB kW kW kW kW ...

Page 18: ...ower Supply IFM Model Hz Voltage Min Max MFA kW FLA ACP 12CT32AEI I Q 50 220 240V 198V 254V 16 0 02 0 018 MFA 18HRDN1 Q 50 220 240V 198V 254V 16 0 02 0 028 Remark MFA Max Fuse Amps A KW Fan Motor Rated Output KW FLA Full Load Amps A IFM Indoor Fan Motor PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 19: ...M 2008 04 22 Indoor units 9 Sound Levels Noise level dB A Model Highest Higher H M L ACP 12CT32AEI I Q ACP 12CT32AEI I 35 33 31 27 23 MFA 18HRDN1 Q MFA 18HRDN1 38 35 33 31 29 PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 20: ...er 2 14 5 Room temp sensor ass y 1 6 Ring ass y 1 15 Wire clamp 1 7 Panel ass y 1 16 Motor bracket 1 8 Centrifugal fan 1 17 Dc motor 1 9 Air outlet frame ass y 1 18 Evaporator ass y 1 9 1 Stepper motor 1 18 1 Output pipe ass y 1 10 Drainage pan ass y 1 18 2 Input pipe ass y 1 10 1 Stepper motor 1 18 3 Evaporator 1 11 Pipe clamp 1 19 Remote controller 1 12 E Part box cover 1 20 Remote controller ho...

Page 21: ... y 1 16 Motor bracket 1 7 Panel ass y 1 17 Dc motor 1 8 Centrifugal fan 1 18 Evaporator ass y 1 9 Air outlet frame ass y 1 18 1 Output pipe ass y 1 9 1 Stepper motor 1 18 2 Input pipe ass y 1 10 Drainage pan ass y 1 18 3 Evaporator 1 10 1 Stepper motor 1 19 Connection tube ass y 1 11 Pipe clamp 1 20 Remote controller 1 12 E Part box cover 1 21 Remote controller holder ass y 1 13 Insulation washer ...

Page 22: ...e controller Its Frame Alkaline dry batteries AM4 2 Installation Owner s manual 1 Holding sponge 2 Others Wrapping tape 1 ACP 12CT32AEI I MFA 18HRDN1 Name Shape Quantity Installation fittings Hook 2 Remote controller 1 Frame 1 Mounting screw ST2 9 10 C H 2 Remote controller Its Frame Alkaline dry batteries AM4 2 Installation manual 1 Others Owner s manual 1 PDF 文件使用 pdfFactory Pro 试用版本创建 www finep...

Page 23: ...rt 3 Outdoor Units 1 Dimensions 27 2 Service Space 28 3 Piping Diagrams 29 4 Wiring Diagrams 30 5 Electric Characteristics 32 6 Sound Levels 33 7 Exploded View 34 8 Operation Limits 38 9 Troubleshooting 39 PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 24: ...TSM 2008 04 Dimensions Outdoor Units 27 1 Dimensions Model A B C D E F H ACP 12CT32AEI O Q 761 530 290 315 270 279 593 MOU 18HDN1 Q 842 560 335 360 312 324 695 PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 25: ...Service Space MCAC UTSM 2008 04 28 Outdoor Units 2 Service Space PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 26: ... MOU 18HDN1 Q T1 Room temp sensor T2 Evaporator temp sensor T4 Ambient temp sensor T3 Condenser temp sensor Filter Filter T5 Discharge temp sensor Compressor Electronic expansion valve Evaporator Capillary Indoor unit 4 way valve High pressure switch Outdoor unit Condenser Low pressure switch Low pressure liquid accumulator PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 27: ...4 CONNECTORS MOU 18HDN1 Q RECTIFI LER2 RE CTIFILER 1 COMPRESSOR FAN IPM 10PIN P N U V W POWER BOARD P 2 L N CN2 3 4 HEA T BOARD MAIN RED RED BLACK WHITE WHITE RED AC CAPACITO R R1 32 5C EL ECT RONIC EX PAN SIVE V ALV E BLUE BLACK RED U V W TRANS B LUE R1815B FILTER CN1 CN9 CN4 CN12 EEV CN6 WHITE BLACK EXHAUST TEMPER SEN SOR WHITE ORANGE CONNECTOR RED RED CN 14 CN15 CN8 CN4 CN1 0 P 1 CN1 BLACK CN11...

Page 28: ... U V W POWER BOARD P 2 L N CN2 3 4 HEAT BOARD MAIN RED RE D BLACK WHITE WH ITE RED AC CA PACI TOR R1325C ELECTRONIC EXPANSIVE VALVE BLUE BLAC K RED U V W TRANS BLUE R1 8 15B FILTER CN1 CN9 CN4 CN12 EE V CN6 WHITE BLACK EXHAUST TEMPER SENSOR WH ITE ORANGE CONNECTOR R ED RED C N14 CN15 CN8 CN4 CN1 0 P 1 CN1 BLACK CN11 TRANS CN2 U V W CN16 BLACK RED BLACK BLUE RED RED C N 3 B LUE 4 W AY CN5 CN9 P 5 P...

Page 29: ...40V 198V 254V 20 16 5 3 0 024 0 27 MOU 18HDN1 Q 50 220 240V 198V 254V 20 16 8 8 0 053 0 59 ACP 12CT32AEI O 50 220 240V 198V 254V 20 16 5 3 0 024 0 27 MOU 18HDN1 50 220 240V 198V 254V 20 16 8 8 0 053 0 59 Remark TOCA Total Over current Amps A MFA Max Fuse Amps A RLA Rated Locked Amps A OFM Outdoor Fan Motor FLA Full Load Amps A KW Rated Motor Output KW PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint c...

Page 30: ...MCAC UTSM 2008 04 Sound Levels Outdoor Units 33 6 Sound Levels Noise level dB A Model Hi Lo ACP 12CT32AEI O Q 48 44 MOU 18HDN1 Q 52 47 PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 31: ...lle 1 17 2 Condenser 1 4 Axial flow fan 1 17 3 Condenser outlet pipe 1 5 Left holder 1 18 Room temp sensor ass y 1 6 Partition board ass y 1 19 Connect couplings ass y 1 7 Base ass y 1 19 1 One way valve 1 8 1 Reactance 1 19 2 Connect couplings 1 8 2 Reactance 1 19 3 Strainer ass y 1 9 Electric inductance cover ass y 1 19 4 Four way electro magnetic reversing valve 1 10 Sponge 1 20 Temp sensor ass...

Page 32: ... 3 Condenser 1 3 7 Compressor capacitor 1 19 Temp sensor 1 3 8 Power board ass y 1 20 Connect coupling ass y 1 3 9 Main controller ass y 1 20 1 Solenoid 1 3 10 EMC filter 1 20 2 4 way valve 1 3 11 Motor capacitor 1 20 3 Connect coupling 1 3 12 Wire joint 1 20 4 Pressure controller 1 4 Grille 1 20 5 Pressure controller 1 5 Axial flow fan 1 20 6 Electronic expansion valve 1 6 Left holder 1 20 7 EEV ...

Page 33: ...er 1 17 3 Condenser outlet pipe 1 3 Grille 1 18 Room temp sensor ass y 1 4 Axial flow fan 1 19 Low pressure valve ass y 1 5 Left holder 1 19 1 Low pressure valve 1 6 Partition board ass y 1 19 2 Four way electro magnetic reversing valve 1 7 Base ass y 1 20 High pressure valve ass y 1 8 1 Reactance 1 20 1 High pressure valve 1 8 2 Reactance 1 20 2 One way valve 1 9 Electric inductance cover ass y 1...

Page 34: ...odule 1 19 Temp sensor 1 3 8 Power board ass y 1 20 4 way valve ass y 1 3 9 Main controller ass y 1 20 1 4 way valve 1 3 10 Wire joint 2p 1 20 2 Low pressure valve 1 3 11 Wire joint 1 20 3 Solenoid 1 3 12 Wire joint 1 21 Temp sensor ass y 1 3 13 Inverter radiator 1 22 High pressure valve ass y 1 4 Grille 1 22 1 Electronic expansion valve 1 5 Axial flow fan 1 22 2 EEV solenoid 1 6 Left holder 1 22 ...

Page 35: ...5 10 15 20 25 30 35 40 43 Cooling Heating Outdoor temperature WB Indoor temperature DB 17 24 30 43 40 35 30 25 20 15 10 5 0 5 15 cooling Indoor temp C 0 Ambient temp C 0 17 24 30 21 6 15 Heating Indoor temp C Ambient temp C Cooling mode Heating mode Item Model Outdoor Indoor Outdoor Indoor ACP 12CT32AEI O Q 21 43 17 30 5 24 17 30 C C C C C C C C Cooling mode Heating mode Item Model Outdoor Indoor ...

Page 36: ...nication checking channel is abnormal 4 EEPROM malfunction 5 Module protection 6 Outdoor temperature sensors malfunction 7 Outdoor unit voltage protection 8 Compressor discharge over temperature protection 9 Outdoor unit current protection Extinguish Flash at 5Hz On u LED indication MFA 18HRDN1 Q No Running lamp Timer lamp Defrosting lamp Malfunction 1 Room temperature sensor malfunction 2 Indoor ...

Page 37: ...idate Check whether the resistance of the temp sensor is correct according to Annex 1 Replace room temp sensor No Replace indoor PCB Yes Defrosting lamp flash at 5Hz Judge Evaporator temp sensor is abnormal Validate Check whether the resistance of the temp sensor is correct according to Annex 1 Replace room temp sensor No Replace indoor PCB Yes PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 38: ...ing correctly Yes No Judge 4 Check whether the signal wiring between the indoor and outdoor units is broken Yes Replace the broken wiring No Judge 2 Check whether the signal wiring is shield cable or whether the shield cable is earthing Yes No Indoor or outdoor main board is broken replace the main board until the malfunction is disappear Judge 1 Check whether the indoor unit power is on Turn on t...

Page 39: ... the EEPROM well Replace outdoor main board Running lamp Timer lamp and Defrosting lamp flash at 5Hz Check whether the wiring of the Condenser temperature sensor is break off Replace outdoor main board Judge 1 Condenser temperature sensor is malfunction Connect the wiring well Yes No Check whether the resistance of Condenser temperature sensor is wrong refer to the Annex 1 Yes Replace Condenser te...

Page 40: ...osting lamp on Outdoor unit voltage protection Check the voltage of outdoor unit power supply whether the voltage between L1 and N is about 198 254V No Replace the power board then check whether the system can run normally Check the power supply Yes Replace outdoor main board Yes Trouble is solved No PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 41: ...onnection is right between compressor discharge temp sensor and PCB according to wiring diagrams Yes Validate Check whether the resistance of compressor discharge temp sensor is right refer to the Annex 2 No Correct the wiring connection Yes Replace outdoor main board Judge The discharge temp sensor is broken No Replace the compressor discharge temp sensor Check whether the refrigerant is leakage ...

Page 42: ...lamp on Outdoor unit current protection Judge 1 Check whether the input current of the power supply wire is more than 16A Check whether the refrigerant system is ok Yes Judge 2 Check whether the outdoor ambient temperature is too high Yes Stop the unit Replace outdoor main board No No Judge 3 Check whether the outdoor unit is bad ventilation Yes No Judge 4 Check whether the heat exchanger is dirty...

Page 43: ...nning lamp flash at 5Hz Running lamp flash at 5Hz Judge Room temp sensor is abnormal Validate Check whether the resistance of the temp sensor is correct according to Annex 1 Replace room temp sensor No Replace indoor PCB Yes PDF 文件使用 pdfFactory Pro 试用版本创建 www fineprint cn ...

Page 44: ...and outdoor units is wrong polarity Connect the signal wiring correctly Yes No Judge 4 Check whether the signal wiring between the indoor and outdoor units is broken Yes Replace the broken wiring No Judge 2 Check whether the signal wiring is shield cable or whether the shield cable is earthing Yes Adopt the shield cable shield cable earthing No Indoor or outdoor main board is broken replace the ma...

Page 45: ...ion P1 High pressure protection P2 Low pressure protection P3 Compressor current protection P4 Compressor discharge temperature protection P5 Condenser high temperature protection P6 IPM protection Note 12000Btu h Its malfunctions are displayed on the indoor units indicator 18000Btu h Its malfunctions are displayed on the outdoor units digital tube 1 E0 malfunction LED indicates E0 EEPROM malfunct...

Page 46: ...eck whether the signal wiring between the indoor and outdoor units is broken Yes Replace the broken wiring No Judge 2 Check whether the signal wiring is shield cable or whether the shield cable is earthing Yes Adopt the shield cable shield cable earthing No Indoor or outdoor main board is broken replace the main board until the malfunction is disappear Judge 1 Check whether the indoor unit power i...

Page 47: ... between the IPM module CN1 port s 3 and 4 pillar check whether it is 5V the third pillar on the main board labels 5V No Replace outdoor main board Yes No Insert the connecting wiring well over again Check whether the connecting wiring between the IPM module positive pole and the CN12 on the power board is break off Yes No No Replace the IPM module Use the multimeter to measure whether the voltage...

Page 48: ...ck whether the resistance of outdoor ambient temperature sensor T4 is wrong refer to the Annex 1 Yes Replace outdoor ambient temperature sensor T4 No LED indicates E5 Outdoor unit voltage protection Check the voltage of outdoor unit power supply whether the voltage between L1 and N is about 198 254V No Replace the power board then check whether the system can run normally Check the power supply Ye...

Page 49: ...Replace high pressure switch No Check whether the refrigerant system is ok Replace outdoor main board No Judge 3 Check whether the outdoor ambient temperature is too high Yes Stop the unit No Judge 4 Check whether the outdoor unit is bad ventilation Yes Make the outdoor unit ventilate well No Judge 5 Check whether the heat exchanger is dirty Yes Clean the heat exchanger No Judge 6 Check whether th...

Page 50: ...o Judge 4 The refrigerant of the system is leakage Yes Validate Connect the pressure gauge to the gauge joint of the system check whether the pressure is lower than 0 15MPa Leak hunting charge nitrogen or refrigerant to the system if the leakage is serious there will be distinct gas leakage cici sound if the leakage is little use the suds mixture of water and abluent is also ok if it can make bubb...

Page 51: ... ambient temperature is too high Yes Stop the unit Replace outdoor main board No No Judge 3 Check whether the outdoor unit is bad ventilation Yes Make the outdoor unit ventilate well No Judge 4 Check whether the heat exchanger is dirty Yes Clean the heat exchanger No Judge 5 The refrigerant pipe is blocked Yes Drop refrigerant then use the high pressure nitrogen or refrigerant to blow pipe vacuumi...

Page 52: ...sor discharge temp sensor and PCB according to wiring diagrams Yes Validate Check whether the resistance of compressor discharge temp sensor is right refer to the Annex 2 No Correct the wiring connection Yes Replace outdoor main board Judge The discharge temp sensor is broken No Replace the compressor discharge temp sensor Check whether the refrigerant is leakage Stop leaking and add refrigerant Y...

Page 53: ...ex 1 Yes Replace outdoor main board No Replace the temperature sensor Yes Judge1 The outdoor temp is too high more than 43 Replace outdoor main board No Judge 2 Check whether the heat exchanger is dirty No Judge 3 The refrigerant pipe is blocked Clean the heat exchanger Yes Yes Drop refrigerant then use the high pressure nitrogen or refrigerant to blow pipe vacuumize and add the refrigerant again ...

Page 54: ...f resistance is 0 Yes Replace the single phase bridge No No Check whether the connecting line of every reactor is normal If the line is broken the resistance of the two ports is No Replace the connecting line Yes Check whether the connecting line between main board and the IPM module is connected tightly Yes Check whether the connecting line of the compressor is connected correctly or tightly Yes ...

Page 55: ... 857 34 596 32 440 6 53 6 23 1 21 1 19 1 34 898 32 807 30 810 6 38 6 09 1 18 1 17 2 33 055 31 120 29 271 6 22 5 94 1 16 1 15 3 31 317 29 528 27 815 6 06 5 80 1 14 1 12 4 29 681 28 026 26 440 5 90 5 66 1 12 1 10 5 28 138 26 608 25 140 5 75 5 52 1 10 1 08 6 26 682 25 268 23 909 5 60 5 38 1 07 1 06 7 25 310 24 003 22 745 5 45 5 24 1 05 1 03 8 24 016 22 808 21 644 5 30 5 10 1 03 1 01 9 22 794 21 678 2...

Page 56: ...02 4 89 1 25 1 23 48 3 925 3 735 3 550 5 10 4 97 1 28 1 25 49 3 776 3 590 3 409 5 18 5 04 1 30 1 28 50 3 632 3 451 3 274 5 25 5 12 1 33 1 30 51 3 495 3 318 3 146 5 33 5 19 1 35 1 33 52 3 363 3 191 3 023 5 41 5 26 1 41 1 36 53 3 237 3 069 2 905 5 49 5 34 1 43 1 38 54 3 116 2 952 2 793 5 56 5 41 1 46 1 41 55 3 001 2 841 2 685 5 64 5 48 1 48 1 44 56 2 890 2 734 2 582 5 71 5 55 1 51 1 46 57 2 784 2 63...

Page 57: ...82 0 912 0 845 7 62 7 35 2 33 2 29 88 0 951 0 883 0 818 7 66 7 39 2 35 2 32 89 0 921 0 855 0 791 7 69 7 43 2 38 2 35 90 0 892 0 828 0 766 7 73 7 46 2 41 2 37 91 0 864 0 802 0 742 7 76 7 49 2 43 2 40 92 0 838 0 777 0 719 7 80 7 52 2 46 2 43 93 0 812 0 753 0 696 7 82 7 54 2 48 2 45 94 0 787 0 730 0 675 7 85 7 57 2 51 2 48 95 0 763 0 708 0 654 7 87 7 59 2 54 2 51 96 0 740 0 686 0 634 7 89 7 61 2 56 2...

Page 58: ... 8 084 115 2 422 4 222 8 36 34 32 76 7 82 116 2 357 3 211 4 37 32 94 77 7 566 117 2 294 2 200 7 38 31 62 78 7 321 118 2 233 1 190 5 39 30 36 79 7 086 119 2 174 0 180 9 40 29 15 80 6 859 120 2 117 1 171 9 41 28 81 6 641 121 2 061 2 163 3 42 26 9 82 6 43 122 2 007 3 155 2 43 25 86 83 6 228 123 1 955 4 147 6 44 24 85 84 6 033 124 1 905 5 140 4 45 23 89 85 5 844 125 1 856 6 133 5 46 22 89 86 5 663 126...

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