Carrier 38HVM109303P Service Manual Download

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WALL MOUNTED AIR CONDITIONER

SERVICE MANUAL

11M INVERTER

This manual applies to the models:

42HVM109303 / 38HVM109303(P)

42HVM112303 / 38HVM112303(P)

42HVM118303 / 38HVM118303(P)

42HVM124303 / 38HVM124303(P)

Summary of Contents for 38HVM109303P

Page 1: ...WALL MOUNTED AIR CONDITIONER SERVICE MANUAL 11M INVERTER This manual applies to the models 42HVM109303 38HVM109303 P 42HVM112303 38HVM112303 P 42HVM118303 38HVM118303 P 42HVM124303 38HVM124303 P...

Page 2: ...3 Pipe length and the elevation 16 6 4 Installation for the first time 17 6 5 Adding the refrigerant after running the system for many years 20 6 6 Re installation while the indoor unit need to be rep...

Page 3: ...mble or repair the product there is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is ri...

Page 4: ...y plug during operation There is risk of fire or electric shock Do not touch operation the product with wet hands Do not place a heater or other appliance near the power cable There is risk of fire an...

Page 5: ...er supply plug or turn off the breaker There is risk of product damage or failure or unintended operation Take care to ensure that nobody could step on or fall onto the outdoor unit This could result...

Page 6: ...or units Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction...

Page 7: ...FN1 MT0W MOG 24HFN1 MT0W Cold catalyst filter Plasma O Silver Ico Filter O Vitamin C Filter O 3M HAM Filter O Bio Filter O Golden Fin O Ionizer O Compressor Crankcase Heater O Self Clean O Louver Posi...

Page 8: ...odel L mm R mm H mm Dimension of installation hole mm MS11M 09HRFN1 MW0W 140 110 45 65 MS11M 12HRFN1 MV0W Model W D H MS11M 09HRFN1 MW0W 835 198 280 MS11M 12HRFN1 MV0W MS11M 18HRFN1 MU0W 990 218 315 M...

Page 9: ...9 Model L mm R mm H mm Dimension of installation hole mm MS11M 18HRFN1 MU0W 260 135 45 65 Model L mm R mm H mm Dimension of installation hole mm MS11M 24HRFN1 MT0W 275 275 45 65...

Page 10: ...han 60cm More than 70cm More than 30cm More than 60cm Service space Fence or obstacles Model W D H W1 A B MOC 09HFN1 MW0W 760 285 590 823 530 290 MOC 12HFN1 MV0W MOF 18HFN1 MU0W 845 320 700 908 560 33...

Page 11: ...ycle Diagram INDOOR OUTDOOR LIQUID SIDE GAS SIDE HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR 2 WAY VALVE 3 WAY VALVE Electronic Expansion Valve CAPILIARY TUBE REVERSINGVALVE COOLING HE...

Page 12: ...12 5 Wiring Diagram 5 1 Indoor Unit MS11M 09HRFN1 MW0W MS11M 12HRFN1 MV0W MS11M 18HRFN1 MU0W MS11M 24HRFN1 MT0W...

Page 13: ...13 5 2 Outdoor Unit MOC 09HFN1 MW0W MOC 12HFN1 MV0W MOF 18HFN1 MU0W...

Page 14: ...14 MOG 24HFN1 MT0W...

Page 15: ...4 6500 663kgf cm 6700 683kgf cm 6 2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet Rated current of appliance Nominal cross section...

Page 16: ...FN1 MW0W MOC 09HFN1 MW0 W 3 8 9 52 1 4 6 35 5 8 20 20 MS11M 12HRFN1 MV0W MOC 12HFN1 MV0W MS11M 18HRFN1 MU0W MOF 18HFN1 MU0W 1 2 12 7 1 4 6 35 5 10 25 20 MS11M 24HRFN1 MT0W MOG 24HFN1 MT0W 5 8 15 9 3 8...

Page 17: ...t brush to check for leakage of the connecting points of the piping If bubbles come out the pipes have leakage 1 Air purging with vacuum pump 1 Completely tighten the flare nuts of the indoor and outd...

Page 18: ...indicator is a little higher than the atmosphere pressure Then remove the charge hose from the 3 way valve 8 Fully open the 2 way valve and 3 way valve and securely tighten the cap of the 3 way valve...

Page 19: ...rant if the pipe length 5m Procedure 1 Connect the charge hose to the charging cylinder open the 2 way valve and the 3 way valve Connect the charge hose which you disconnected from the vacuum pump to...

Page 20: ...nnect the charge hose to the 3 way service port open the 2 way valve and the 3 way valve Connect the charge hose to the valve at the bottom of the cylinder If the refrigerant is R410A make the cylinde...

Page 21: ...e the indoor unit need to be repaired 1 Collecting the refrigerant into the outdoor unit Procedure 1 Confirm that both the 2 way and 3 way valves are set to the opened position Remove the valve stem c...

Page 22: ...y the refrigerant Procedure 1 Confirm that both the 2 way and 3 way valves are set to the closed position 2 Connect the charge set and a charging cylinder to the service port of the 3 way valve Leave...

Page 23: ...tighten the service port cap to a torque 18N m Be sure to check the gas leakage 6 7 Re installation while the outdoor unit need to be repaired 1 Evacuation for the whole system Procedure 1 Confirm th...

Page 24: ...le and record the weight 4 Open the valves Low side on the charge set and charge the system with liquid refrigerant If the system cannot be charge with the specified amount of refrigerant or can be ch...

Page 25: ...25 Use torque wrench to tighten the service port cap to a torque of 18N m Be sure to check for gas leakage...

Page 26: ...e above conditions certain safety protection features may come into operation and cause the unit to operate abnormally 2 The room relative humidity should be less than 80 If the air conditioner operat...

Page 27: ...amp illuminates when Clean Air feature is activated DEFROST indication lamp For cooling heating models only Lights up when the air conditioner starts defrosting automatically or when the warm air cont...

Page 28: ...for certain time the unit will stop and the LED will display the failure 8 3 5 Inverter module Protection The Inverter module has a protection function about current voltage and temperature If these p...

Page 29: ...29 If T4 5 or the compressor starts running the preheating function will stop...

Page 30: ...w auto 4 The louver operates same as in cooling mode 5 Auto fan For MS11M 09HRFN1 MW0W MS11M 12HRFN1 MV0W MS11M 18HRFN1 MU0W models a b c d 5 0 4 0 2 5 1 0 6 0 T 1 2 4 e H H L 0 7 5 L H L 0 5 L H L 0...

Page 31: ...tive 7 minutes later the compressor running frequency will be controlled as below 3 5 3 0 2 5 2 0 1 5 1 0 0 5 0 5 1 0 A B C D E F G H While the zones of A B C are corresponding to different compressor...

Page 32: ...imitation for frequency Note When AC is in hold zone for 3 minutes the compressor frequency will rise to the higher level frequency will increase twice at most 8 4 2 2 Outdoor fan running rules 28 26...

Page 33: ...25 Medium 25 5 8 4 2 4 Condenser temperature protection 55 T3 60 the compressor frequency will decreas e to the lower level until to F1 and then runs at F1 If T3 54 the compressor will keep running a...

Page 34: ...The maximum operation frequency of the compressor after starting submits to the following rule Fmax F3 Fmax F5 Fmax F7 Fmax F9 Fmax F10 Fmax F8 Fmax F6 Fmax F2 34 Off 33 28 27 25 24 22 21 19 18 16 17...

Page 35: ...e below rules A E Increase the frequency to the higher level until to F10 F Keep the current frequency G Decrease the frequency to the lower level until to F1 H Run at F1 for 1h if T1 Ts T 6 the compr...

Page 36: ...tdoor fan running rules 17 15 L M 12 10 H 8 4 3 3 Indoor fan running rules Indoor fan speed can be set as high medium low silent mode or auto grade During all the fan speeds the anti cold wind functio...

Page 37: ...s T L H L 0 2 L H L 0 4 L H L 0 6 L 5 0 6 0 6 5 H H L 0 8 L For MS11M 24HRFN1 MT0W model 2 5 T1 Ts 2 0 High Low 1 0 Medium 1 5 8 4 3 4 Defrosting mode Condition of defrosting T4 0 When the units are r...

Page 38: ...han 120 minutes and T3 keeps lower than TCDI 4 for more than 3 minutes the machine will enter defrosting mode Condition of ending defrosting If any one of the following items is satisfied the defrosti...

Page 39: ...nd runs for 20s When the frequency decreases to F2 and the T2 is still over TEH2 for 3 minutes the compressor will stop T2 48 or T2 stays in 48 TEH2 for 6 minutes the frequency will not be limited by...

Page 40: ...8 4 5 1 Indoor fan speed is fixed at breeze and can t be changed The louver angle is the same as in cooling mode 8 4 5 2 Compressor running rules 2 0 1 5 1 0 F3 F2 F1 F1 2 5 0 5 0 0 8 4 5 3 Low indoor...

Page 41: ...ration rules Forced cooling mode The compressor runs at F2 frequency and indoor fan runs as breeze After running for 30 minutes the machine will turn to auto mode as 24 setting temperature Forced auto...

Page 42: ...aches the setting time in sleep mode 8 4 10 Auto Restart function The indoor unit is equipped with auto restart function which is carried out through an auto restart module In case of a sudden power f...

Page 43: ...temperature sensor and setting temperature 8 4 12 Self clean optional For heat pump models which are provided with this function after running in cooling or drying mode if the user press Self Clean bu...

Page 44: ...4 16 Silence operation optional Press the silence button on remote controller to initiate SILENCE function When the Silence function is activated the compressor running frequency will keep lower than...

Page 45: ...ection 2 times O F1 Outdoor ambient temperature sensor T4 open circuit or short circuit 3 times O F2 Condenser coil temperature sensor T3 open circuit or short circuit 4 times O F3 Compressor discharg...

Page 46: ...46 9 2 Diagnosis and Solution 9 2 1 EEPROM parameter error diagnosis and solution E0 EEPROM a read only memory whose contents can be erased and reprogrammed using a pulsed voltage...

Page 47: ...47 9 2 2 Indoor outdoor units communication error diagnosis and solution E1...

Page 48: ...48 9 2 3 Fan speed has been out of control diagnosis and solution E3 E7...

Page 49: ...r or Outdoor DC Fan Motor control chip is in fan motor Power on and when the unit is in standby measure the voltage of pin1 pin3 pin4 pin3 in fan motor connector If the value of the voltage is not in...

Page 50: ...50 9 2 4 Open circuit or short circuit of temperature sensors diagnosis and solution E5 E6...

Page 51: ...51 9 2 5 IPM malfunction or IGBT over strong current protection diagnosis and solution P0...

Page 52: ...52 9 2 6 Over voltage or over low voltage protection diagnosis and solution P1...

Page 53: ...the installation or replace T2 sensor Does the problem remain again No Is there any leakage Especially the connection parts such as the gas valve and the liquid valve No Shut off the power supply and...

Page 54: ...54 9 2 9 Inverter compressor drive error diagnosis and solution P4...

Page 55: ...istance approx 100 40W or soldering iron plug between terminals of the electrolytic capacitor on the contrary side of the outdoor PCB Note The picture above is only for reference The plug of your side...

Page 56: ...5 2 4 Table 2 Some frequently used R T data for T5 sensor Temperature 5 15 25 35 60 70 80 90 100 Resistance Value K 141 6 88 56 1 36 6 13 8 9 7 6 9 5 3 7 Resistance value K Temperature Spec Code 2T003...

Page 57: ...ic capacitors discharge completely and dismount the IPM Use a digital tester to measure the resistance between P and UVWN UVW and N Digital tester Normal resistance value Red Black Several M P N U V W...

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