AirQ MSM-09HRN1, Service Manual

Page 1: ...SERVICE MANUAL AirQ AIRCONDITIONER MULTI SPLIT TYPE MSM 09HRN1 MSM 12HRN1 MSM 30HRN1 V1 0 Dec 2007...

Page 2: ...manual PAGE 1 OF 20 Multi SERIES 1 Features 2 2 Function 2 3 Specification 3 4 Dimensions 6 5 Refrigeration cycle diagram 8 6 Wiring diagram 9 7 Troubleshooting 12 8 Electronic function 14 9 Characte...

Page 3: ...re sensor Pipe temperature sensor Sensing by room temperature Maintain the room temperature in accordance with the setting temperature Room temperature control Indoor fan is delayed for 5 sec at the s...

Page 4: ...ydrophilic aluminium Hydrophilic aluminium e Tube outside dia and type mm 7 innergroove tube 7 innergroove tube f Coil length x height x width mm 538X252X26 74 538X252X26 74 Indoor coil g Number of ci...

Page 5: ...F 25uF 370VAC X 2 25 35uF 370VAC Compressor Refrigerant oil ml 350X2 350 480 Model YDK60 6 YDK60 6 Brand Welling Welling Input W 111 111 Capacitor uF 4uFx2 4uFx2 Outdoor fan motor Speed r min 830 650...

Page 6: ...al Internal Capacitor uF 45 35uF 370VAC 45 35uF 370VAC Compressor Refrigerant oil ml 750 480 750 480 Model YDK50 4G1 YDK50 4G1 Brand Welling Welling Input W 200 200 Capacitor uF 4uFx2 4uFx2 Outdoor fa...

Page 7: ...s service manual PAGE 6 OF 20 Thermostat type Electronic control Operation temp 17 30 Ambient temp 18 43 cooling 7 24 heating 4 Dimension 4 1 Indoor unit dimension Dimension Mode W H D 9K 790 275 190...

Page 8: ...4 8 2008R series service manual PAGE 7 OF 20 4 2 Outdoor unit dimension a Outdoor unit 18K 21K b Outdoor unit 27K 30K...

Page 9: ...ur way valve PMV1 PMV2 Electronic expansive valve T1 T2 Indoor pipe temperature sensor Condenser Four way valve Evaporator Compressor 1 drive 1 system Notice For 1 drives 2 system there are two indivi...

Page 10: ...4 8 2008R series service manual PAGE 9 OF 20 6 Wiring diagram 6 1 Indoor unit...

Page 11: ...4 8 2008R series service manual PAGE 10 OF 20 6 2 Outdoor unit For 1 drive 2 outdoor unit...

Page 12: ...4 8 2008R series service manual PAGE 11 OF 20 For 1 drive 3 outdoor unit...

Page 13: ...1 1 drive 2 Failure phenomenon LED1 LED2 LED3 Stand by High temp protect of condenser Temp sensor in condenser 1 is open circuit or short circuit Temp sensor in condenser 2 is open circuit or short ci...

Page 14: ...g applied to the fan motor rang 90v 160v between mid pin and N on CN1 NO YES Indoor PCB is defective Replace the indoor PCB YES Replace the indoor fan motor NO Is the indoor fan motor connector and co...

Page 15: ...outdoor temperature sensor connector and connection good Repair the connector and reconnect Replace the sensor and check if E5 display again NO YES Replace outdoor e box YES Is the temp more than 65...

Page 16: ...indicator illuminates Auto indicator This indicator flashes when the air conditioner is in AUTO operation ECON indicator This indicator illuminates while the air conditioner is in economic operation 8...

Page 17: ...eed is out of control When Indoor Fan Speed is too high higher than High Fan 300RPM or too low lower than 400RPM the entire unit stops and LED displays failure information and can t returns to normal...

Page 18: ...s the same as that of cooling mode 8 8 Heating mode 8 8 1 Generally the 4 way valve is open in heating mode but it is closed in defrosting mode 4 way valve must delay 2 minutes compared with compresso...

Page 19: ...ature protection under heating mode Condition Compressor Outdoor fan TE TE8 On On TE8 TE TE7 On Off Indoor exchanger temp up TE TE7 Off Off TE TE9 Off Off Indoor exchanger temp down TE TE9 On On TE In...

Page 20: ...r reselect when the set temp varies 8 11 Forced cooling function 8 11 1 Select forced cooling function with the forced cooling button or the switch 8 11 2 The compressor is unconditionally turned on a...

Page 21: ...stant and the air circulation is kept at low speed Cold air proof function takes precedence over all 8 14 4 Auto The economic running function operates in accordance with the selected running mode by...

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