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SERVICE MANUAL

MIDEA AIRCONDITIONER

EUROPE MARKET

SUPER DC INVERTER MULTI TYPE

M2OD-14HFN1-Q
M2OD-16HFN1-Q
M2OD-18HFN1-Q
M3OD-21HFN1-Q
M3OD-26HFN1-Q
M3OD-27HFN1-Q
M4OD-28HFN1-Q
M4OA-36HFN1-Q
M5OC-36HFN1-Q
M5OD-42HFN1-Q

DC MULTI OUTDOOR UNITS

Содержание M2OD-14HFN1-Q

Страница 1: ...AIRCONDITIONER EUROPE MARKET SUPER DC INVERTER MULTI TYPE M2OD 14HFN1 Q M2OD 16HFN1 Q M2OD 18HFN1 Q M3OD 21HFN1 Q M3OD 26HFN1 Q M3OD 27HFN1 Q M4OD 28HFN1 Q M4OA 36HFN1 Q M5OC 36HFN1 Q M5OD 42HFN1 Q DC...

Страница 2: ...of Outdoor Units 3 2 Features 4 3 Dimensions 5 4 Wiring Diagram 12 5 Refrigeration Cycle Diagram 16 6 Indoor units combination 19 7 Sound Levels 22 8 Installation Details 23 9 Electronic control func...

Страница 3: ...D 18HFN1 Q 810x310x558 DA130M1C 31FZ M2OD 18HFN1 Q 845x320x700 DA150S1C 20FZ M3OD 21HFN1 Q 845x320x700 DA150S1C 20FZ M3OD 26HFN1 Q 845x320x700 DA150S1C 20FZ M3OD 27HFN1 Q 900x315x860 DA250S2C 30MT M4O...

Страница 4: ...valves and prevents water from dripping 4 way valve control It is only operated in the heating operation mode except defrosting operation Outdoor unit Power relay control Hydrophilic aluminum fin Anti...

Страница 5: ...3 Dimensions M2OD 14HFN1 Q M2OD 18HFN1 Q 560 W1 H 6 D1 335 D2 360 845 W 313 D3 335 D1 R6 R5 A1 22 A2 50 B1 120 110 B2 700 W2 73 58 58 58 110 H1 H2 200 7 243 6 L1 L2...

Страница 6: ...M2OD 16HFN1 Q M2OD 18HFN1 Q W190 D2 348 558 H W2 64 795 W 549 W1 810 W3 A2 61 6 A1 25 4 R20 R7 7 289 D3 D1 325 10 B1 66 6 B2 104 2 50 H1 90 H2...

Страница 7: ...M3OD 21HFN1 Q M3OD 26HFN1 Q 560 W1 H 6 D1 335 D2 360 845 W 313 D3 335 D1 R6 R5 A1 22 A2 50 B1 120 110 B2 700 W2 73 58 58 58 58 58 110 H1 H2 200 7 243 6 L1 L2...

Страница 8: ...M3OD 27HFN1 Q 900 W 590 W1 860 H 12 D2 355 D1 333 302 D3 333 D1 50 97 90 B2 B1 8 A2 55 55 55 55 55 110 62 W2 H1 H2 R6 238 4 285 7 L1 L2...

Страница 9: ...M4OD 28HFN1 Q 900 W 590 W1 860 H 12 D2 355 D1 333 302 D3 333 D1 50 97 90 B2 B1 8 A2 55 55 55 55 55 55 55 110 62 W2 H1 H2 R6 238 4 285 7 L1 L2...

Страница 10: ...M4OA 36HFN1 Q 624 W1 990 W D2 397 D1 366 965 10 H 78 W2 340 366 D3 D1 125 145 B1 B2 60 22 A2 A1 55 140 H1 H2 R5 R6...

Страница 11: ...M5OC 36HFN1 Q M5OD 42HFN1 Q 990 W W2 81 624 W1 D2 397 D1 366 55 H1 965 H 153 H2 366 D1 B2 125 B1 145 D3 345 60 22 A2 A1 R5 R6...

Страница 12: ...4 Wiring Diagram M2OD 14HFN1 Q M2OD 18HFN1 Q...

Страница 13: ...M2OD 16HFN1 Q M2OD 18HFN1 Q W190...

Страница 14: ...M3OD 27HFN1 Q M3OD 21HFN1 Q M3OD 26HFN1 Q M4OD 28HFN1 Q M4OA 36HFN1 Q...

Страница 15: ...M5OC 36HFN1 Q M5OD 42HFN1 Q...

Страница 16: ...ILIARY B LIQUID VALVE B GAS VALVE B Accumulator T2B A Evaporator temp sensor outlet T2B B 5 2 Refrigeration circuit drawing of inverter 1 drive 3 type LIQUID VALVE A GAS VALVE A HEAT EXCHANGE EVAPORAT...

Страница 17: ...witch Low pressure switch T2B A Evaporator temp sensor outlet T2B B T2B C T2B D 5 4 Refrigeration circuit drawing of M5OC 36HFN1 Q LIQUID VALVE A GAS VALVE A HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CON...

Страница 18: ...T3 Condenser temp sensor T4 Ambient temp sensor INDOOR OUTDOOR EXV A CAPILIARY A CHECK VALVE CAPILIARY TUBE EXV B CAPILIARY B LIQUID VALVE B GAS VALVE B EXV C CAPILIARY C LIQUID VALVE C GAS VALVE C EX...

Страница 19: ...nit 7 7 7 9 9 9 7 9 9 12 12 7 12 9 18 18 7 18 12 12 6 4 Indoor unit combination for M3OD 21HFN1 Q M3OD 26HFN1 Q One unit Two unit Three unit 7 7 7 9 9 7 7 7 7 9 12 9 7 9 9 12 7 7 9 9 9 9 12 7 12 9 18...

Страница 20: ...9 9 12 12 7 7 7 7 9 7 7 7 12 18 7 7 12 12 18 7 9 12 12 12 9 9 9 12 18 7 7 7 7 12 7 7 7 18 18 7 9 9 9 9 7 9 12 12 18 9 9 12 12 12 One unit Two unit Three unit Four unit 7 7 7 9 9 12 18 7 7 7 7 9 9 9 9...

Страница 21: ...it 7 7 7 7 7 7 9 24 7 9 9 24 7 12 18 18 9 9 18 18 7 7 7 9 7 7 12 12 7 9 12 12 9 9 9 9 9 12 12 12 7 7 7 12 7 7 12 18 7 9 12 18 9 9 9 12 9 12 12 18 7 7 7 18 7 7 12 24 7 9 12 24 9 9 9 18 12 12 12 12 7 7...

Страница 22: ...unit Model Noise Power dB A Noise level dB A M2OD 14HFN1 Q 63 62 M2OD 16HFN1 Q 65 56 M2OD 18HFN1 Q W190 65 56 M2OD 18HFN1 Q W210 63 62 M3OD 21HFN1 Q 68 59 M3OD 26HFN1 Q 68 58 M3OD 27HFN1 Q 68 62 M4OD...

Страница 23: ...ent indicated on the nameplate which located on the side panel of the unit Please refer to the nameplate before selecting the cable fuse and switch 8 3 Pipe length and the elevation Maximum piping len...

Страница 24: ...3 8 8 4 Installation for the first time Air and moisture in the refrigerant system have undesirable effects as below Pressure in the system rises Operating current rises Cooling or heating efficiency...

Страница 25: ...here are some leakage points Fully close the handle Lo valve of the manifold valve and stop the operation of the vacuum pump Confirm that the gauge needle does not move approximately 5 minutes after t...

Страница 26: ...valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut...

Страница 27: ...r be careful of the liquid refrigerant 3 Put the charging cylinder onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the c...

Страница 28: ...der onto the electronic scale and record the weight 4 Operate the air conditioner at the cooling mode 5 Open the valves Low side on the charge set and charge the system with liquid refrigerant 6 When...

Страница 29: ...manifold valve slightly to purge air from the charge hose for 5 seconds and then close it quickly 4 Set the 2 way valve to the close position 5 Operate the air conditioner at the cooling cycle and st...

Страница 30: ...valve 4 Check the gas leakage Check the flare connections for gas leakage 5 Discharge the refrigerant Close the valve on the charging cylinder and discharge the refrigerant by loosening the flare nut...

Страница 31: ...s service port 3 Evacuation for approximately one hour Confirm that the compound meter indicates 0 1Mpa 4 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge...

Страница 32: ...w 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 charged with a little at a time approximately 1...

Страница 33: ...ere are one low pressure centralized valve and one high pressure centralized valve it will be more time saving when vacumm and recycle refrigerant But refer to the previous instruction when vacumm and...

Страница 34: ...the LED displays In compressor operation the LED display the running frequency In defrosting mode The LED displays dF or alternative displays between running frequency and dF each displays 0 5s In com...

Страница 35: ...r unit evaporator outlet temp T2BA If the temp is lower than 9 degree the digital display tube will show 9 If the temp is higher than 70 degree the digital display tube will show 70 If the indoor unit...

Страница 36: ...rrent Bit6 Frequency limit caused by PFC Bit5 Frequency limit caused by T4 Bit4 Frequency limit caused by T2 Bit3 Frequency limit caused by T3 Bit2 Frequency limit caused by T5 Bit1 Frequency limit ca...

Страница 37: ...s 4 0 a 3 1 1 3 1 2 0 b c d e f 2 Capacity area a b c d e f Norm value N 3 2 1 5 1 0 5 0 9 4 4 Number of indoor unit Display Number of indoor unit 1 1 2 2 3 3 4 4 5 5 9 4 5 Opening degree of electroni...

Страница 38: ...s the compressor frequency will be limited as below table Cooling mode Current frequency Hz Current limit value A Frequency limit COOL_F16 ICOOLLMT12 Decrease the frequency to COOL_F4 and run at COOL_...

Страница 39: ...condenser coil temp protection When T3 65 for 3 seconds the compressor will stop while the indoor fan and outdoor fan will continue When T3 52 the protection will release and the compressor will resta...

Страница 40: ...compressor drive protection P5 6 Mode conflict P6 7 Low pressure protection Just matching with M4OA 36HFN1 Q M4OD 28HFN1 Q M5OC 36HF N1 Q M5OD 42HFN1 Q O light X off flash Light Commercial series Exce...

Страница 41: ...ween indoor and outdoor units X X 4 Outdoor fan speed has been out of control X O 5 Indoor EEPROM malfunction X 6 IPM module protection X 7 Open or short circuit of T3 or T4 temperature sensor or Outd...

Страница 42: ...C Indoor unit coil outlet temperature sensor or connector of sensor is defective F4 No D Indoor unit coil outlet temperature sensor or connector of sensor is defective F5 No E Indoor unit coil outlet...

Страница 43: ...t 10 3 1 1 Indoor EEPROM malfunction Yes Replace the indoor main PCB Power off then restart the unit 2 minutes later EEPROM An electrically erasable programmable read only memory whose contents can be...

Страница 44: ...remote controller Is all indoor unit display Turn off the all indoor units Is IPM power LED or operating LED lamp On Refer PIC2 Yes A Is all the wiring between terminal and Indoor PCB connect ok No Ye...

Страница 45: ...4OD 28HFN1 Q tri zone Self Check Power Operating Self Check Operating els Pic 2 IPM or outdoor main PCB For M2OD 16HFN1 Q M2OD 18HFN1 Q W190 M4OA 36H FN1 Q qui zone Pic 1 check the voltage of N to S V...

Страница 46: ...PIC3 Main board LED when power on and unit standby PIC 4 check point button Press 1 time for check how many indoor units are connected...

Страница 47: ...ck the wiring of fan motor Are all the connections good No Yes No Correct the connections Correct the connections No Replace the fan motor Replace the fan motor Yes Yes Replace the main PCB Replace th...

Страница 48: ...ype NO Color Signal Voltage 1 Red Vs Vm 280V 380V 2 3 Black GND 0V 4 White Vcc 14 17 5V 5 Yellow Vsp 0 5 6V 6 Blue FG 14 17 5V For other types NO Color Signal Voltage 1 Red Vs Vm 192V 380V 2 3 Black G...

Страница 49: ...rmal Yes 10 3 1 6 Full water malfunction If the water level switch is inserted well If the water level switch is inserted well No Insert the water level switch well Insert the water level switch well...

Страница 50: ...ce the outdoor main PCB Replace the outdoor main PCB Power off then restart the unit 2 minutes later Power off then restart the unit 2 minutes later EEPROM An electrically erasable programmable read o...

Страница 51: ...PM board light Check the signal wire between the IPM board and the main board is it connected good Reconnect and retry Is error still display Replace IPM board and then check whether the system can ru...

Страница 52: ...0VAC Check the power supply Check whether the voltage of IPM board P and N is normal DC277 356V for 18 27KBtu h DC277 410V for 36 42KBtu h Replace bridge rectifiers and then check whether the system c...

Страница 53: ...he fan are tighten Check the wiring of fan motor Are all the connections good Check the wiring of fan motor Are all the connections good No Yes No Correct the connections Correct the connections No Re...

Страница 54: ...the outdoor ambient temperature is higher than 50 Check whether the outdoor ambient temperature is higher than 50 No Stop the unit Stop the unit Yes Check if the outdoor unit ventilation is good Chec...

Страница 55: ...r the low pressure protector is broken Whether the low pressure protector is broken Check whether the outdoor ambient temperature is too low Check whether the outdoor ambient temperature is too low No...

Страница 56: ...door unit ventilate well Yes Judge 5 The refrigerant pipe is blocked No Let the refrigerant out then use the high pressure nitrogen or refrigerant to blow pipe vacuumize and charge the refrigerant aga...

Страница 57: ...ng diagrams Measure the resistance value of compressor discharge temp sensor If the value is not normal is normal refer to the Appendix 2 Measure the resistance value of compressor discharge temp sens...

Страница 58: ...or unit ventilation is good Check if the outdoor unit ventilation is good Yes Make the outdoor unit ventilate well Make the outdoor unit ventilate well Check whether the heat exchanger is dirty Check...

Страница 59: ...or check whether the system can work normally Check whether the lines in E part box are connected tightly Yes Connect it tightly check ok or not No No Yes No Replace the bridge rectifiers Check whethe...

Страница 60: ...motor WZDK27 38GS WZDK27 38GS WZDK27 38GS YSK68 4P Model 7K Cassette 9K Cassette 12K Cassette 18K Cassette Indoor fan motor WZDK37 38G WZDK37 38G WZDK37 38G YDK37 4P Model 9K Console 12K Console 18K...

Страница 61: ...easure the resistance value with a tester Temperature Sensors Room temp T1 sensor Indoor coil temp T2 sensor Outdoor coil temp T3 sensor Outdoor ambient temp T4 sensor Compressor discharge temp T5 sen...

Страница 62: ...34105 116 0 40060 3 41 5878 37 5 87359 77 1 29078 117 0 38991 2 39 8239 38 5 62961 78 1 25423 118 0 37956 1 37 1988 39 5 39689 79 1 21330 119 0 36954 0 35 2024 40 5 17519 80 1 17393 120 0 35982 1 33 3...

Страница 63: ...5 234 9 35 35 78 75 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...

Страница 64: ...ure the resistance value of each winding by using the tester Position Resistance Value DA130M1C 31FZ DA150S1C 20FZ DA250S2C 30MT TNB306FPGMC L ASN108D22UEZ MNB36FAAMC L Blue Red 1 77 20 0 95 20 0 55 2...

Страница 65: ...W Red 4 Indoor AC Fan Motor Measure the resistance value of each winding by using the tester Posi tion Resistance Value RPG20D Weilng RPG28D T ongDe RPG28D Dayang RPG20E T ongDe RPG20E Weilng RPG13H W...

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