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ODMI-1103-A 

 

 
Annex 1 
 

Characteristic of temp. sensor 

Temp.

 

 

Resistance KΩ

 

 

 

  Temp.

 

 

Resistance KΩ

 

 

 

  Temp.

 

 

Resistance KΩ

 

-10 

62.2756 

 

 

17 

14.6181 

 

 

44 

4.3874 

-9 

58.7079 

 

 

18 

13.918 

 

 

45 

4.2126 

-8 

56.3694 

 

 

19 

13.2631 

 

 

46 

4.0459 

-7 

52.2438 

 

 

20 

12.6431 

 

 

47 

3.8867 

-6 

49.3161 

 

 

21 

12.0561 

 

 

48 

3.7348 

-5 

46.5725 

 

 

22 

11.5 

 

 

49 

3.5896 

-4 

44 

 

 

23 

10.9731 

 

 

50 

3.451 

-3 

41.5878 

 

 

24 

10.4736 

 

 

51 

3.3185 

-2 

39.8239 

 

 

25 

10 

 

 

52 

3.1918 

-1 

37.1988 

 

 

26 

9.5507 

 

 

53 

3.0707 

35.2024 

 

 

27 

9.1245 

 

 

54 

2.959 

33.3269 

 

 

28 

8.7198 

 

 

55 

2.8442 

31.5635 

 

 

29 

8.3357 

 

 

56 

2.7382 

29.9058 

 

 

30 

7.9708 

 

 

57 

2.6368 

28.3459 

 

 

31 

7.6241 

 

 

58 

2.5397 

26.8778 

 

 

32 

7.2946 

 

 

59 

2.4468 

25.4954 

 

 

33 

6.9814 

 

 

60 

2.3577 

24.1932 

 

 

34 

6.6835 

 

 

61 

2.2725 

22.5662 

 

 

35 

6.4002 

 

 

62 

2.1907 

21.8094 

 

 

36 

6.1306 

 

 

63 

2.1124 

10 

20.7184 

 

 

37 

5.8736 

 

 

64 

2.0373 

11 

19.6891 

 

 

38 

5.6296 

 

 

65 

1.9653 

12 

18.7177 

 

 

39 

5.3969 

 

 

66 

1.8963 

13 

17.8005 

 

 

40 

5.1752 

 

 

67 

1.830 

14 

16.9341 

 

 

41 

4.9639 

 

 

68 

1.7665 

15 

16.1156 

 

 

42 

4.7625 

 

 

69 

1.7055 

16 

15.3418 

 

 

43 

4.5705 

 

 

70 

1.6469 

 

Summary of Contents for M2OC-14HRDN1

Page 1: ...IR CONDITIONERS Technical service manual R410A Multi DC inverter 220 240V 1Ph 50Hz Outdoor units Models M2OC 14HRDN1 M2OC 14HRDN1 Q M2OC 18HRDN1 M2OC1 18HRDN1 Q M3OC1 21HRDN1 Q M3OC 27HRDN1 M3OC1 27HR...

Page 2: ...ONTENTS 1 General information of Outdoor Units 3 2 Features 4 3 Dimensions 5 4 Wiring Diagram 6 5 Refrigeration Cycle Diagram 10 6 Indoor units combination 12 7 Electronic control function 14 8 Troubl...

Page 3: ...N1 Q 845 700 320 55 60 DA130S1C 20FZ M3OC 27HRDN1 845 700 320 59 62 C 6RZ146H1A M3OC1 27HRDN1 Q 845 700 320 57 60 5 DA150S1C 20FZ M4OC 24HRDN1 Q 845 700 320 56 60 DA150S1C 20FZ M4OC 27HRDN1 900 860 31...

Page 4: ...he heating operation mode except defrosting operation It protects the valves and prevents water from dripping Outdoor unit Power relay control Hydrophilic aluminum fin Anti rust cabinet Valve protecti...

Page 5: ...00 908 560 335 M2OC1 18HRDN1 Q 845 320 700 908 560 335 M3OC1 21HRDN1 Q 845 320 700 908 560 335 M3OC 27HRDN1 845 320 700 908 560 335 M3OC1 27HRDN1 Q 845 320 700 908 560 335 M4OC 24HRDN1 Q 845 320 700 9...

Page 6: ...ODMI 1103 A 4 Wiring Diagram 4 1 M2OC 14HRDN1 Q 4 2 M2OC 14HRDN1...

Page 7: ...ODMI 1103 A 4 3 M2OC1 18HRDN1 Q M3OC1 21HRDN1 Q 4 4 M2OC 18HRDN1 M3OC 27HRDN1...

Page 8: ...ODMI 1103 A 4 5 M3OC1 27HRDN1 Q M4OC 24HRDN1 Q 4 6 M4OC1 27HRDN1 Q M4OC 27HRDN1...

Page 9: ...ODMI 1103 A 4 7 M4OC 36HRDN1 4 8 M5OA 36HRDN1 Q...

Page 10: ...A 5 Refrigeration Cycle Diagram 5 1 Refrigeration circuit drawing of inverter binary type 4 2 Refrigeration circuit drawing of inverter trinary type 5 3 Refrigeration circuit drawing of inverter quad...

Page 11: ...ODMI 1103 A 5 4 Refrigeration circuit drawing of inverter quintuple type...

Page 12: ...8 12 12 7 9 9 Note There should be no more than one cassette or duct or console or ceiling floor unit And the 18k indoor unit should only be wall mounted unit 6 4 Indoor unit combination for M3OC1 27H...

Page 13: ...12 7 7 12 18 7 9 12 18 9 9 9 12 9 12 12 18 7 7 7 18 7 7 18 18 7 9 18 18 9 9 9 18 12 12 12 12 7 7 9 9 7 9 9 9 7 12 12 12 9 9 12 12 12 12 12 18 7 7 9 12 7 9 9 12 7 12 12 18 9 9 12 18 Five Unit 7 7 7 7...

Page 14: ...e The LED displays dF or alternative displays between running frequency and dF each displays 2s In compressor pre heating The LED displays In protection or malfunction the LED displays error code or p...

Page 15: ...The capacity unit is horse power If the indoor unit is not connected the digital display tube will show 4 B indoor unit capacity 5 C indoor unit capacity 6 D indoor unit capacity 7 E indoor unit capac...

Page 16: ...e for A indoor unit Actual data 4 If the value is higher than 99 the digital display tube will show single digit and tens digit For example the digital display tube show 2 0 it means the EXV open angl...

Page 17: ...5 500 5500 6 100 6100 7 000 7000 7 500 7500 8 000 7500 Correspondi ng Code 1 2 3 4 5 6 7 8 9 10 Heating mode Capacity 2000 2 500 2000 2 500 3000 3 800 4500 5 000 5500 6 100 6100 7 000 6100 7 000 7000...

Page 18: ...86 28 22 4 56 13 87 28 5 23 3 5 57 13 5 88 29 24 3 58 14 89 29 5 26 2 59 14 5 90 30 27 1 5 60 15 91 30 5 28 1 61 15 5 92 31 29 0 5 62 16 93 31 5 30 0 63 16 5 93 31 5 31 0 5 63 16 5 94 32 32 1 64 17 9...

Page 19: ...2 VOLLIMT3 Off VOLFRE2 VOLFRE1 VOLREL1 VOLREL2 VOLREL3 Mode VOLLIMT1 V VOLLIMT2 V VOLLIMT3 V VOLREL1 V VOLREL2 V VOLREL3 V VOLFRE1 Hz VOLFRE2 Hz M2OC 14HRDN1 220 200 80 250 210 100 62 54 M2OC 14HRDN1...

Page 20: ...t 3 minutes later Heating mode Current frequency Hz Current limit value A Frequency limit HEAT_F12 IHEATLMT8 Decrease the frequecny to HEAT_F4 and run at HEAT_F4 for 3 minutes After that the frequency...

Page 21: ...IHEATLMT7 HEAT_F10 IHEATLMT6 HEAT_F9 IHEATLMT5 HEAT_F8 IHEATLMT4 HEAT_F7 IHEATLMT3 HEAT_F6 IHEATLMT2 HEAT_F5 IHEATLMT1 If the current frequency is lower than HEAT_F4 the frequency will not be limited...

Page 22: ...he current running mode 3 If the outdoor ambient is higher than 15 during the oil return the AC quit oil return 7 5 9 Compressor preheating functions Preheating permitting condition If T4 outdoor ambi...

Page 23: ...ator temperature sensor O O O E6 7 Outdoor fan speed out of control O O E7 8 IBM malfunction or IGBT over strong current protection X X O P0 9 Over voltage or too under voltage protection X O O P1 10...

Page 24: ...t X Outdoor current protection flash light X extinguished A5 Duct Operation Timer De frost Alarm LED STATUS DISPLAY DIGITAL TUBE X X X Indoor room temp sensor open or short circuit E0 X X X Indoor pip...

Page 25: ...ensor or connector of sensor is defective E4 Outdoor unit temp sensor or connector of temp sensor is defective E5 Compressor voltage protection E7 Communication malfunction between outdoor main chip a...

Page 26: ...ector of sensor is defective F2 No B Indoor unit coil outlet temp sensor or connector of sensor is defective F3 No C Indoor unit coil outlet temp sensor or connector of sensor is defective F4 No D Ind...

Page 27: ...e connect the power supply turn on the unit with remote controller Does the unit work normally Check the wiring between indoor and outdoor unit Is the connection of L N S and GND good Is the GND conne...

Page 28: ...ion between fan and motor check if the bearing is normal If not change the bearing If yes follow the below step Replace the indoor fan motor Yes Replace the indoor PCB No Yes Check the voltage of moto...

Page 29: ...rs and the PCB Are the connections good Replace the sensor and check if the errors happen again Check the voltage of power supply if the voltage is about 220V turn off the power supply to indoor unit...

Page 30: ...Communication malfunction between outdoor main chip and compressor control chip Check whether the IPM board has error display Replace the IPM board Replace the electric control box No No Yes Replace t...

Page 31: ...good Is refrigerant circulation volume normal No No Charge refrigerant Is abnormality the same after gas charging No Check refrigerant system such as clogging of capillary etc Reconnect and retest No...

Page 32: ...nly Does the compressor start after 3 minutes Does the trouble occur again after compressor running some time No Yes No The compressor is defective Check the refrigerant circulation volume and pressur...

Page 33: ...the outdoor pipe temp more than 65 C Is the outdoor pipe temp sensor right according to the annex 1 Replace the outdoor main board No Yes Replace the outdoor pipe temp sensor No Replace inverter comp...

Page 34: ...ifiers input port is normal Replace the outdoor PCB Yes Replace the PFC inductance Check whether the voltage between P and N port in IPM is 380V No Replace outdoor e box Yes Check whether the wiring b...

Page 35: ...0 52 3 1918 1 37 1988 26 9 5507 53 3 0707 0 35 2024 27 9 1245 54 2 959 1 33 3269 28 8 7198 55 2 8442 2 31 5635 29 8 3357 56 2 7382 3 29 9058 30 7 9708 57 2 6368 4 28 3459 31 7 6241 58 2 5397 5 26 8778...

Page 36: ...V W 60 150V AC P N DC 310V c Photo couple PC817 PC851 Control side 5V AC side 24V AC d S terminal and N changeable from 0 24V 2 Check the Diode Bridge component In wiring diagram rectifier Remark If t...

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