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Midea R410A 50Hz T1 Compressor Condensing Unit

DM17-03.01.56_en

7. Trouble shooting

7.1 Phenomena not attributable to faults of air conditioner



The system does not run.



It does not run immediately because the safety device in the system is active to prevent

overload.



Three minutes later, the air conditioner compressor will run automatically.

7.2 Faults of air conditioner and cause



If any of the following exceptions occur, operation of the air conditioner will be immediately

stopped. Turn off the power switch, and check it.



The fuse blows out frequently, or the circuit breaker protection occurs frequently.



Foreign substance or moist enters the air conditioner or other exceptions occur.



If the air conditioner fails but does not meet the foregoing phenomena obviously, check the

system in the following procedure:

Symptom

Possible causes

Way of handing

The cooling effect is

poor.

The condenser or evaporator is

too dirty, or block.

Clean the heat-exchanger. Remove

foreign matters to keep well ventilated.

The door or window is opened.

Close all the windows and doors.

Directly exposed to sunlight.

Obstruct sunlight by curtains or

jalousie.

Too many heat sources.

Reduce heat sources.

Too high outdoor environment

temperature.

It is normal, and the cooling effect of the

air conditioner is deteriorated.

The refrigerant is leaked or the

replenishment is deficient.

Detect leak, and fill the refrigerant of a

correct quantity.

Symptom

Possible causes

Way of handing

The system does

not run.

Power supply fails.

Operate it after power supply resumes

and connect the power supply properly.

Power switch is disconnected.

The fuse blows out or the circuit

breaker acts.

Replace the fuse or check whether

electric leakage occurs.

The Indoor unit

sends air out without

cool air.

3-minutes protection of the

compressor.

Waiting for 3 minutes.

Summary of Contents for MCCU-03CN1

Page 1: ...al Manual Applicable Model MCCU 03CN1 MCCU 05CN1 MCCU 07CN1 MCCU 10CN1 MCCU 14CN1 MCCU 16CN1 MCCU 22CN1 MCCU 28CN1 MCCU 35CN1 MCCU 45CN1 MCCU 53CN1 MCCU 61CN1 MCCU 70CN1 MCCU 105CN1 Midea reserves the right to discontinue or change specification or designs at any time without notices and without incurring obligations ...

Page 2: ...DM17 03 01 56_en Midea R410A 50Hz T1 Compressor Condensing Unit 2 Content Part 1 Performance 3 Part 2 Installation 52 Appendix VRF Solution 81 ...

Page 3: ...art 1 Performance 1 Product lineup 4 2 External Appearance 4 3 Nomenclature 6 4 Specifications 7 5 Dimensions Unit mm 18 6 Refrigerant circuits 24 7 Wiring Diagrams 28 8 Electrical datas 34 9 Sound Levels 34 10 Capacity table 36 11 Connection accessory list Optional 50 ...

Page 4: ... MCCU 07CN1 7 100 24 230 MCCU 10CN1 380 415V 3Ph 50Hz 10 500 35 830 MCCU 14CN1 14 000 47 770 MCCU 16CN1 16 000 54 590 MCCU 22CN1 22 000 75 060 MCCU 28CN1 28 000 95 540 MCCU 35CN1 380 400V 3Ph 50Hz 35 000 119 420 MCCU 45CN1 380 415V 3Ph 50Hz 45 000 153 540 MCCU 53CN1 380 400V 3Ph 50Hz 53 000 180 840 MCCU 61CN1 61 000 208 130 MCCU 70CN1 70 000 238 840 MCCU 105CN1 105 000 358 260 2 External Appearanc...

Page 5: ...Midea R410A 50Hz T1 Compressor Condensing Unit DM17 03 01 56_en 5 MCCU 14CN1 MCCU 16CN1 MCCU 22CN1 MCCU 28CN1 MCCU 35CN1 MCCU 45CN1 MCCU 53CN1 MCCU 61CN1 MCCU 70CN1 MCCU 105CN1 ...

Page 6: ...6_en Midea R410A 50Hz T1 Compressor Condensing Unit 6 3 Nomenclature M CCU 53 C N1 Refrigerant type R410A Function code C Cooling only H Heat pump Nominal cooling capacity 53 1 000W Compressor Condensing Unit Midea ...

Page 7: ...K48 6H A Fan dimension mm Φ401 Φ424 Drive type Direct Direct Capacitor 2 5µF 450V 3µF 450V Motor input W 63 111 Motor speed rpm 800 890 Coil Type Copper tube and aluminum fin Copper tube and aluminum fin Tube size mm Φ7 94 Φ7 Qty of rows 1 2 Fin space mm 1 6 1 4 Length Height mm 762 484 658 546 Number of circuits 2 8 Refrigerant pipe Liquid side Gas side mm Φ6 35 Φ12 7 Φ6 35 Φ12 7 Max pipe length ...

Page 8: ...ension mm Φ460 Φ560 Drive type Direct Direct Capacitor 3µF 450V 10µF 450V Motor input W 136 290 Motor speed rpm 800 830 Coil Type Copper tube and aluminum fin Copper tube and aluminum fin Tube size mm Φ7 Φ7 No of rows 2 1 6 Fin space mm 1 5 1 5 Length Height mm 766 630 898 882 Number of circuits 4 7 Refrigerant pipe Liquid side Gas side mm Φ9 52 Φ12 7 Φ9 52 Φ19 Max pipe length m 20 30 Max differen...

Page 9: ...5 Φ455 Drive type Direct Direct Capacitor 4µF 450V 4µF 450V Motor input W 174 174 Motor speed rpm 825 825 Coil Type Copper tube and aluminum fin Copper tube and aluminum fin Tube size mm Φ7 Φ7 94 No of rows 2 2 Fin space mm 1 5 1 6 Length Height mm 845 1 092 837 1 100 Number of circuits 8 8 Refrigerant pipe Liquid side Gas side mm Φ9 52 Φ19 Φ9 52 Φ19 Max pipe length m 30 30 Max difference in level...

Page 10: ... Φ530 Drive type Direct Capacitor 10μF 450V Motor input W Hi 284 Lo 202 Motor speed rpm Hi 920 930 Lo 650 710 4 blades 3 blades Coil Type Copper tube and aluminum fin Tube size mm Ф7 94 No of rows 2 Fin space mm 1 4 Length Height mm 2 177 880 Number of circuits 9 Refrigerant pipe Liquid side Gas side mm Ф9 52 Ф22 Max pipe length m 50 Max difference in level m 30 Connection wire Power wire 5 6 0mm ...

Page 11: ...e Direct Capacitor 25μF 450V Motor input W Hi 621 587 Lo 388 388 4 blades 3 blades Motor speed rpm Hi 1 180 1 230 Lo 790 870 4 blades 3 blades Coil Type Copper tube and aluminum fin Tube size mm Ф7 No of rows 3 Fin space mm 1 3 Length Height mm 2 179 882 Number of circuits 20 Refrigerant pipe Liquid side Gas side mm Ф9 52 Ф25 Max pipe length m 50 Max difference in level m 30 Connection wire Power ...

Page 12: ...ct Capacitor 25μF 450V Motor input W Hi 621 587 Lo 388 388 4 blades 3 blades Motor speed rpm Hi 1 180 1 230 Lo 790 870 4 blades 3 blades Coil Type Copper tube and aluminum fin Tube size mm Ф7 No of rows 3 Fin space mm 1 3 Length Height mm 1 380 882 1 380 882 Number of circuits 20 20 Refrigerant pipe Liquid side Gas side mm Ф12 7 Ф28 6 Max pipe length m 50 Max difference in level m 30 Connection wi...

Page 13: ...e Direct Capacitor 20μF 450V Motor input W Hi 615 580 Lo 425 420 4 blades 3 blades Motor speed rpm Hi 1 000 1 090 Lo 780 870 4 blades 3 blades Coil Type Copper tube and aluminum fin Tube size mm Ф7 94 No of rows 2 Fin space mm 1 6 Length Height mm 2 286 1 232 Number of circuits 28 Refrigerant pipe Liquid side Gas side mm Ф16 Ф32 Max pipe length m 50 Max difference in level m 30 Connection wire Pow...

Page 14: ...an dimension mm Φ650 Drive type Direct Capacitor Motor input W 750 Motor speed rpm 930 Coil Type Copper tube and aluminum fin Tube size mm Φ7 94 No of rows 3 Fin space mm 1 6 Length Height mm 2 209 1 100 Number of circuits 12 12 Refrigerant pipe Liquid side Gas side mm Ф12 7 Ф25 2 Max pipe length m 50 Max difference in level m 30 Connection wire Power wire 4 16 0mm 2 1 10 0mm 2 Ground Signal wire ...

Page 15: ...mension mm Φ700 Drive type Direct Capacitor Motor input W 1 300 Motor speed rpm 940 Coil Type Copper tube and aluminum fin Tube size mm Φ7 94 No of rows 3 Fin space mm 1 6 Length Height mm 2 209 1 100 Number of circuits 12 12 Refrigerant pipe Liquid side Gas side mm Ф12 7 Ф25 2 Max pipe length m 50 Max difference in level m 30 Connection wire Power wire 4 25 0mm 2 1 16 0mm 2 Ground Signal wire 2 1...

Page 16: ...on mm Φ750 Drive type Direct Capacitor Motor input W 1 300 Motor speed rpm 940 Coil Type Copper tube and aluminum fin Tube size mm Φ7 94 No of rows 3 6 Fin space mm 1 6 Length Height mm 1 355 1 100 1 325 1 100 Number of circuits 25 25 Refrigerant pipe Liquid side Gas side mm Ф12 7 Ф25 2 Max pipe length m 50 Max difference in level m 30 Connection wire Power wire 4 25 0mm 2 1 16 0mm 2 Ground Signal...

Page 17: ...on mm Φ802 Drive type Direct Capacitor Motor input W 1 690 Motor speed rpm 910 Coil Type Copper tube and aluminum fin Tube size mm Φ7 No of rows 3 6 Fin space mm 1 5 Length Height mm 1 325 756 2 1367 756 2 Number of circuits 24 24 Refrigerant pipe Liquid side Gas side mm Ф12 7 Ф25 2 Max pipe length m 50 Max difference in level m 30 Connection wire Power wire 4 35 0mm 2 1 16 0mm 2 Ground Signal wir...

Page 18: ...DM17 03 01 56_en Midea R410A 50Hz T1 Compressor Condensing Unit 18 5 Dimensions Unit mm MCCU 03CN1 MCCU 05CN1 ...

Page 19: ...Midea R410A 50Hz T1 Compressor Condensing Unit DM17 03 01 56_en 19 MCCU 07CN1 MCCU 10CN1 ...

Page 20: ...DM17 03 01 56_en Midea R410A 50Hz T1 Compressor Condensing Unit 20 MCCU 14CN1 MCCU 16CN1 ...

Page 21: ...Midea R410A 50Hz T1 Compressor Condensing Unit DM17 03 01 56_en 21 MCCU 22CN1 MCCU 28CN1 MCCU 35CN1 ...

Page 22: ...DM17 03 01 56_en Midea R410A 50Hz T1 Compressor Condensing Unit 22 MCCU 45CN1 MCCU 53CN1 MCCU 61CN1 ...

Page 23: ...Midea R410A 50Hz T1 Compressor Condensing Unit DM17 03 01 56_en 23 MCCU 70CN1 MCCU 105CN1 ...

Page 24: ...DM17 03 01 56_en Midea R410A 50Hz T1 Compressor Condensing Unit 24 6 Refrigerant circuits MCCU 03CN1 MCCU 05CN1 MCCU 07CN1 ...

Page 25: ...Midea R410A 50Hz T1 Compressor Condensing Unit DM17 03 01 56_en 25 MCCU 10CN1 MCCU 14CN1 MCCU 16CN1 MCCU 22CN1 MCCU 28CN1 MCCU 35CN1 ...

Page 26: ...DM17 03 01 56_en Midea R410A 50Hz T1 Compressor Condensing Unit 26 MCCU 45CN1 ...

Page 27: ...Midea R410A 50Hz T1 Compressor Condensing Unit DM17 03 01 56_en 27 MCCU 53CN1 MCCU 61CN1 MCCU 70CN1 MCCU 105CN1 Notes Two 4 way valves connected in refrigerant pipe systems are invalid ...

Page 28: ...DM17 03 01 56_en Midea R410A 50Hz T1 Compressor Condensing Unit 28 7 Wiring Diagrams MCCU 03CN1 MCCU 05CN1 MCCU 07CN1 ...

Page 29: ...Midea R410A 50Hz T1 Compressor Condensing Unit DM17 03 01 56_en 29 MCCU 10CN1 MCCU 14CN1 MCCU 16CN1 ...

Page 30: ...DM17 03 01 56_en Midea R410A 50Hz T1 Compressor Condensing Unit 30 MCCU 22CN1 MCCU 28CN1 MCCU 35CN1 ...

Page 31: ...Midea R410A 50Hz T1 Compressor Condensing Unit DM17 03 01 56_en 31 MCCU 45CN1 ...

Page 32: ...DM17 03 01 56_en Midea R410A 50Hz T1 Compressor Condensing Unit 32 MCCU 53CN1 MCCU 61CN1 MCCU 70CN1 ...

Page 33: ...Midea R410A 50Hz T1 Compressor Condensing Unit DM17 03 01 56_en 33 MCCU 105CN1 ...

Page 34: ... 86 16 5 0 573 2 613 MCCU 28CN1 50 380 415V 342V 440V 20 21 23 8 110 20 1 373 6 26 MCCU 35CN1 50 380 400V 342V 440V 25 28 6 30 147 21 4 0 604 2 93 MCCU 45CN1 50 380 415V 342V 440V 37 1 47 9 52 7 62 8 8 0 76 5 48 MCCU 53CN1 50 380 400V 342V 440V 49 6 54 8 60 3 142 16 4 1 2 4 MCCU 61CN1 50 380 400V 342V 440V 67 5 66 8 73 5 142 20 7 2 2 5 4 MCCU 70CN1 50 380 400V 342V 440V 69 2 70 8 77 9 147 21 4 2 2...

Page 35: ...evel MCCU 22CN1 65 dB A MCCU 28CN1 67 dB A MCCU 35CN1 69 dB A MCCU 45CN1 70 dB A MCCU 53CN1 73 dB A MCCU 61CN1 76 dB A MCCU 70CN1 76 dB A MCCU 105CN1 78 dB A Notes 1 H h 1 2m 2 The sound pressure value is the weighted average of four sides which include front rear left and right side of the unit ...

Page 36: ...nput power kW 1 04 0 98 0 95 0 91 0 87 0 83 32 С Cooling capacity kW 3 70 3 47 3 37 3 17 3 05 2 88 Input power kW 1 09 1 02 0 99 0 95 0 91 0 87 35 С Cooling capacity kW 3 58 3 38 3 28 3 08 2 98 2 81 Input power kW 1 12 1 06 1 03 0 98 0 94 0 90 40 С Cooling capacity kW 3 37 3 18 3 08 2 90 2 80 2 64 Input power kW 1 20 1 13 1 09 1 04 1 00 0 96 43 С Cooling capacity kW 3 20 3 02 2 93 2 75 2 66 2 51 I...

Page 37: ...r kW 1 65 1 55 1 50 1 43 1 38 1 31 32 С Cooling capacity kW 5 84 5 47 5 31 5 01 4 82 4 56 Input power kW 1 72 1 62 1 56 1 49 1 43 1 37 35 С Cooling capacity kW 5 66 5 34 5 18 4 87 4 70 4 44 Input power kW 1 78 1 68 1 62 1 55 1 48 1 42 40 С Cooling capacity kW 5 32 5 02 4 87 4 58 4 42 4 17 Input power kW 1 89 1 78 1 72 1 65 1 58 1 51 43 С Cooling capacity kW 5 05 4 76 4 63 4 35 4 20 3 97 Input powe...

Page 38: ...r kW 2 31 2 18 2 10 2 01 1 93 1 84 32 С Cooling capacity kW 8 18 7 67 7 45 7 02 6 76 6 39 Input power kW 2 40 2 27 2 19 2 09 2 01 1 92 35 С Cooling capacity kW 7 93 7 48 7 26 6 82 6 59 6 22 Input power kW 2 49 2 35 2 27 2 17 2 08 1 99 40 С Cooling capacity kW 7 45 7 03 6 82 6 41 6 19 5 85 Input power kW 2 65 2 50 2 42 2 31 2 22 2 12 43 С Cooling capacity kW 7 08 6 68 6 48 6 09 5 88 5 56 Input powe...

Page 39: ...r kW 3 27 3 09 2 98 2 85 2 74 2 61 32 С Cooling capacity kW 11 61 10 88 10 57 9 95 9 59 9 06 Input power kW 3 41 3 22 3 11 2 97 2 85 2 72 35 С Cooling capacity kW 11 25 10 61 10 30 9 68 9 34 8 83 Input power kW 3 53 3 33 3 22 3 07 2 95 2 82 40 С Cooling capacity kW 10 57 9 97 9 68 9 10 8 78 8 30 Input power kW 3 76 3 55 3 43 3 27 3 14 3 00 43 С Cooling capacity kW 10 04 9 47 9 20 8 65 8 34 7 88 In...

Page 40: ... 4 30 4 16 3 97 3 81 3 64 32 С Cooling capacity kW 16 17 15 16 14 72 13 87 13 36 12 62 Input power kW 4 75 4 48 4 33 4 14 3 97 3 79 35 С Cooling capacity kW 15 67 14 78 14 35 13 49 13 02 12 30 Input power kW 4 92 4 64 4 48 4 28 4 11 3 93 40 С Cooling capacity kW 14 73 13 89 13 49 12 68 12 24 11 56 Input power kW 5 24 4 94 4 78 4 56 4 38 4 18 43 С Cooling capacity kW 13 99 13 20 12 81 12 05 11 62 1...

Page 41: ... 4 94 4 78 4 56 4 38 4 18 32 С Cooling capacity kW 18 57 17 42 16 91 15 92 15 34 14 49 Input power kW 5 46 5 15 4 97 4 75 4 56 4 36 35 С Cooling capacity kW 17 99 16 97 16 48 15 49 14 95 14 13 Input power kW 5 65 5 33 5 15 4 92 4 72 4 51 40 С Cooling capacity kW 16 91 15 96 15 49 14 56 14 05 13 28 Input power kW 6 02 5 68 5 48 5 24 5 03 4 80 43 С Cooling capacity kW 16 07 15 16 14 72 13 83 13 35 1...

Page 42: ... 6 82 6 59 6 30 6 04 5 77 32 С Cooling capacity kW 25 63 24 04 23 34 21 98 21 17 20 01 Input power kW 7 53 7 11 6 87 6 56 6 30 6 01 35 С Cooling capacity kW 24 84 23 43 22 75 21 39 20 64 19 50 Input power kW 7 80 7 36 7 11 6 79 6 52 6 22 40 С Cooling capacity kW 23 35 22 03 21 39 20 10 19 40 18 33 Input power kW 8 31 7 84 7 57 7 23 6 94 6 63 43 С Cooling capacity kW 22 18 20 93 20 32 19 10 18 43 1...

Page 43: ...8 8 21 7 84 7 53 7 19 32 С Cooling capacity kW 32 28 30 28 29 39 27 69 26 66 25 20 Input power kW 9 61 8 98 8 60 8 21 7 88 7 53 35 С Cooling capacity kW 31 28 29 51 28 65 26 93 25 99 24 56 Input power kW 10 01 9 36 8 95 8 55 8 21 7 84 40 С Cooling capacity kW 29 40 27 74 26 93 25 32 24 43 23 09 Input power kW 10 66 9 96 9 54 9 11 8 74 8 35 43 С Cooling capacity kW 27 93 26 35 25 58 24 05 23 21 21 ...

Page 44: ... 71 9 32 8 90 32 С Cooling capacity kW 39 98 37 49 36 40 34 29 33 02 31 20 Input power kW 11 73 11 12 10 64 10 17 9 76 9 32 35 С Cooling capacity kW 38 74 36 54 35 48 33 35 32 18 30 41 Input power kW 12 22 11 59 11 09 10 59 10 17 9 71 40 С Cooling capacity kW 36 41 34 35 33 35 31 35 30 25 28 59 Input power kW 13 02 12 34 11 81 11 28 10 83 10 34 43 С Cooling capacity kW 34 59 32 63 31 68 29 78 28 7...

Page 45: ...2 41 11 91 11 37 32 С Cooling capacity kW 51 63 48 42 47 01 44 28 42 64 40 30 Input power kW 15 21 14 21 13 60 12 99 12 47 11 91 35 С Cooling capacity kW 50 03 47 19 45 82 43 07 41 56 39 28 Input power kW 16 01 14 96 14 32 13 67 13 13 12 54 40 С Cooling capacity kW 47 02 44 36 43 07 40 49 39 07 36 92 Input power kW 17 42 16 28 15 58 14 88 14 28 13 64 43 С Cooling capacity kW 44 67 42 14 40 92 38 4...

Page 46: ...4 38 13 81 13 19 32 С Cooling capacity kW 60 48 56 73 55 08 51 87 49 96 47 21 Input power kW 17 82 16 65 15 94 15 22 14 61 13 95 35 С Cooling capacity kW 58 61 55 29 53 68 50 46 48 69 46 02 Input power kW 18 76 17 53 16 78 16 02 15 38 14 69 40 С Cooling capacity kW 55 09 51 97 50 46 47 43 45 77 43 25 Input power kW 20 41 19 07 18 25 17 43 16 73 15 98 43 С Cooling capacity kW 52 34 49 37 47 94 45 0...

Page 47: ...6 52 15 86 15 15 32 С Cooling capacity kW 69 47 65 16 63 26 59 58 57 39 54 23 Input power kW 20 47 19 13 18 31 17 48 16 78 16 03 35 С Cooling capacity kW 67 32 63 51 61 66 57 96 55 93 52 86 Input power kW 21 55 20 14 19 27 18 40 17 67 16 87 40 С Cooling capacity kW 63 28 59 70 57 96 54 48 52 58 49 68 Input power kW 23 44 21 91 20 96 20 02 19 22 18 36 43 С Cooling capacity kW 60 12 56 71 55 06 51 7...

Page 48: ...8 97 18 21 17 39 32 С Cooling capacity kW 79 76 74 81 72 63 68 41 65 88 62 26 Input power kW 23 50 21 96 21 02 20 07 19 27 18 40 35 С Cooling capacity kW 77 29 72 91 70 79 66 54 64 21 60 68 Input power kW 24 74 23 12 22 12 21 13 20 28 19 37 40 С Cooling capacity kW 72 65 68 54 66 54 62 55 60 36 57 04 Input power kW 26 91 25 15 24 07 22 99 22 07 21 07 43 С Cooling capacity kW 69 02 65 11 63 22 59 4...

Page 49: ...28 39 27 25 26 02 32 С Cooling capacity kW 119 38 111 97 108 70 102 38 98 61 93 18 Input power kW 35 17 32 87 31 45 30 04 28 84 27 54 35 С Cooling capacity kW 115 68 109 13 105 95 99 59 96 11 90 82 Input power kW 37 02 34 60 33 11 31 62 30 35 28 99 40 С Cooling capacity kW 108 74 102 58 99 59 93 62 90 34 85 37 Input power kW 40 28 37 64 36 02 34 40 33 03 31 54 43 С Cooling capacity kW 103 30 97 45...

Page 50: ... 1 1 Electromagnetic valve solenoid Model DCFXQ 018F6905 DCFXQ 018F6905 DCFXQ 018F6905 Quantity 1 1 1 Package size mm 400 215 290 400 215 290 400 215 290 CCU 02N1 C CCU 03N1 C CCU 04N1 C Available CCU model MCCU 10CN1 MCCU 14CN1 MCCU 16CN1 Thermal expansion valve Model BAE 3 ZW195 TGEL4 5 067N3172 TGEL4 5 067N3172 Quantity 1 1 1 Filter drier Model DML033S 023Z5050 DML053S 023Z5054 DML053S 023Z5054...

Page 51: ...61CN1 Thermal expansion valve Model TGEL13 067N3177 TGEL9 067N3176 TGEL9 067N3176 Quantity 1 2 2 Filter drier Model GZGLQ DML165S DML 305 FS DML 305 FS Quantity 1 2 2 Sight glasses Model SGP 16sI 014L0044 SGP 12sN 014L0183 SGP 12sN 014L0183 Quantity 1 2 2 Electromagnetic valve Model EVRH15 032G1056 EVR10 032F1217 EVR10 032F1217 Quantity 1 2 2 Electromagnetic valve solenoid Model DCFXQ 018F6905 018...

Page 52: ...ressor Condensing Unit 52 Part 2 Installation 1 Notes 53 2 Transport and Fixed units 54 3 Connection of Refrigerant Pipe 57 4 Heat Insulation of Refrigerant Pipe 68 5 Electric Connection 68 6 Trial Run 70 7 Trouble shooting 71 8 Maintenance 79 ...

Page 53: ...easide where the air contains much salt Hot ring area where corrosive gases exist e g sulfide gas Factories where the supply voltage fluctuates seriously Inside a car or cabin Place like kitchen where oil permeates Place where strong electromagnetic waves exist Place where flammable gases or materials exist Place where acid or alkali gases evaporate or other special environments Install the unit w...

Page 54: ...electric connection 2 Transport and Fixed units When installing the unit leave a space for maintenance shown in the following figure Install the power supply at the side of the outdoor unit MCCU 03CN1 MCCU 05CN1 MCCU 07CN1 MCCU 10CN1 MCCU 14CN1 MCCU 16CN1 In case any obstacles exist above the outdoor unit such obstacles must be 600mm above the outdoor unit MCCU 22CN1 MCCU 28CN1 MCCU 35CN1 Top view...

Page 55: ...steel ropes of a diameter 6mm or bigger size to hoist the outdoor unit and move it into the site In order to prevent scratch and deformity the unit apply a guard board to the surface between the steel wire and the air conditioner Remove the cushion for use in the transport after finishing the transport The distance of the foundation bolt is shown in following picture MCCU 03CN1 MCCU 05CN1 MCCU 07C...

Page 56: ...30 117 315 290 MCCU 07CN1 843 560 142 4 360 335 MCCU 10CN1 990 624 4 186 3 396 362 9 MCCU 14CN1 900 590 129 400 378 MCCU 16CN1 900 590 129 400 378 MCCU 22CN1 1 260 762 249 3 700 676 MCCU 28CN1 1 260 762 249 3 700 676 MCCU 35CN1 1 260 762 249 700 676 MCCU 45CN1 1 250 1 120 64 765 736 MCCU 53CN1 1 825 1 568 129 5 899 635 MCCU 61CN1 1 825 1 568 129 5 899 635 MCCU 70CN1 2 158 1 872 143 1 082 774 MCCU ...

Page 57: ... prevent influence caused by snow set up raised pavilion and install snow protection sheds at the air inlet and air outlet The snow protection facilities are provided in the site 3 Connection of Refrigerant Pipe Schematic diagram of connection between indoor unit and outdoor unit MCCU 03CN1 MCCU 05CN1 MCCU 07CN1 MCCU 10CN1 MCCU 14CN1 MCCU 16CN1 ...

Page 58: ... outdoor unit So remove the right front board first When the pipe is connected from the front side the pipe can be led out through the right front board The units which capacities are 53kW 61kW 70kW and 105kw have two separate systems so please mark the system codes and correctly connect the pipes of each system When welding the refrigerant pipe in order to prevent internal oxidation of the pipe n...

Page 59: ... Φ25mm Two groups of pipes MCCU 105CN1 Φ12 7mm Φ25mm Two groups of pipes All connections between indoor unit and outdoor unit are copper to copper and should be brazed with a phosphorous copper alloy material such as Silfos 5 or equivalent Do not use soft solder The outdoor units have reusable valves on both the liquid and vapor connections The total system refrigerant charge is retained within th...

Page 60: ...the wall suitable just for the size of the wall sleeve then set on the fittings such as the wall sleeve and its cover Bind the connecting pipe and cables together tightly with binding tapes Pass the bound connecting pipe through the wall sleeve from outside Make sure of the pipe allocation not to damage the copper tubes Allowed length of refrigerant pipe and height difference MCCU 03CN1 MCCU 05CN1...

Page 61: ...CCU 35CN1 MCCU 45CN1 MCCU 53CN1 MCCU 61CN1 MCCU 70CN1 MCCU 105CN1 Allowed value Max actual length of pipe L 50m Max height difference between indoor and outdoor unit Outdoor unit upper 30m Outdoor unit lower lower 25m Max number of bends 15 Do not increase or decrease piping sizes As shown in following picture when brazing the indoor and outdoor connective lines pad a sheet metal under the valve a...

Page 62: ...large torque will harm the bell mouthing and too small will cause leakage Please determine the torque according to the following table Pipe gauge Tightening torque Flare dimension A Flare shape N m Kgf cm Min Max Φ6 35mm 14 2 17 2 144 176 8 3mm 8 7mm Φ9 52mm 32 7 39 9 333 407 12 0mm 12 4mm Φ12 7mm 49 5 60 3 504 616 15 4mm 15 8mm Φ16mm 61 8 75 4 630 770 18 6mm 19 0mm Φ19mm 97 2 118 6 990 1 210 22 9...

Page 63: ...n 1 hex flat Cap must be replaced to prevent leaks Never attempt to repair any brazed connections while the system is under pressure Personal injury could result After the pipes between the indoor unit and the outdoor unit are connected replenish compressed nitrogen to perform airtight test The airtight test is performed by using the compressed nitrogen 2 94MPa 30kg cm2 G Leak test with a bubble t...

Page 64: ... valves A and B completely Tighten the square head cover of valves A and B completely Use refrigerant tank to expel air Screw up the pipe nuts at A B C and D completely Loosen and remove the square head cover and maintenance orifice nut of valves A and B Connect the filler hose of refrigerant tank with the maintenance orifice of valve A Loosen the valve of the refrigerant tank continue filling ref...

Page 65: ...uming tighten the low pressure handle of the manifold valve completely and stop the vacuum pump Keep extracting air for over 15 minutes Check whether the multi meter points at 1 0 10Pa 76cmHg Loosen the remove the square head cover of valves A and B After opening valves A and B completely tighten the square head cover of valves A and B Remove the filler hose of the maintenance orifice of valve A a...

Page 66: ...nt replenished for 1m pipe length Φ6 35mm 0 022kg Φ9 52mm 0 06kg Φ12 7mm 0 12kg Φ16mm 0 18kg Notes Please check and record the replenished quantity of the air conditioner Refrigerant leak precautions This air conditioner uses refrigerant R410A R410A is safe refrigerant which is harmless and non flammable The room for placing the air conditioner should have a proper space Even if refrigerant leakag...

Page 67: ...A kg B m3 Density threshold 0 3kg m3 Measures against crossing of the refrigerant density threshold In order to keep the refrigerant density below the threshold value please install a mechanic ventilation device Perform ventilation often In case frequent ventilation is impossible please install the leakage detection alarm device linked with the mechanical ventilation device ...

Page 68: ...heat insulation material of the air side pipe e g EPT Cover heat insulation materials separately at the liquid side and the air side Moreover perform heat insulation thoroughly for the air side pipes of the indoor unit and prevent water from dripping outside the unit After applying the auxiliary heat insulation materials use vinyl resin tape to seal refrigerant pipe and drainage pipe to prevent wa...

Page 69: ...wiring regulations In order to prevent disoperation of the air conditioner do not interleave or entwine the power cable with the connection wires Low voltage wires of the indoor and outdoor unit 5 2 Specifications of power supply Model Power Switch capacity of the main power supply Fuse Power cable Connective wire of indoor outdoor unit MCCU 03CN1 220 240V 1Ph 50Hz 20A 16A 2 2 5mm2 1 1 5mm2 MCCU 0...

Page 70: ... outdoor unit has been powered on for over 12 hours Check whether all valves are opened before trial run Check the electric safety before trial run Do not perform compulsory operation in any way because it is very dangerous if the protection device is not active Perform trial run only after all installations are finished Confirm the following issues before trial operation Whether the indoor and ou...

Page 71: ...ocedure Symptom Possible causes Way of handing The cooling effect is poor The condenser or evaporator is too dirty or block Clean the heat exchanger Remove foreign matters to keep well ventilated The door or window is opened Close all the windows and doors Directly exposed to sunlight Obstruct sunlight by curtains or jalousie Too many heat sources Reduce heat sources Too high outdoor environment t...

Page 72: ...emp sensor error Outdoor ambient Temp sensor error Protection of condenser hi temp Notes Flash Extinguish MCCU 22CN1 MCCU 28CN1 MCCU 35CN1 Type LED1 LED2 Phase sequence protection Communication failure Outdoor condenser Temp sensor error Outdoor ambient Temp sensor error Protection of low pressure Protection of high pressure Protection of over current Protection of condenser hi temp Notes Light fo...

Page 73: ...nit will resume after power on again MCCU 53CN1 MCCU 61CN1 MCCU 70CN1 MCCU 105CN1 Type LED1 LED2 Phase sequence or lack of phase Condenser temperature sensor error 5 3S Low temperature protection of suction system A 1 3S O Fault of suction temperature sensor system A 2 3S O Discharge temperature or hi pressure protection system A 3 3S O Low pressure protection system A 4 3S O Current over load pro...

Page 74: ...conds 5 3S Rapidly flash5 times and then stop for 3 seconds 6 3S Rapidly flash 6 times and then stop for 3 seconds If a system has error or protection another one will be stopped operation after 1 hour If two systems have error or protection at the same time then only system A will be display the codes Phase sequence or lack of phase Condenser temperature sensor error ...

Page 75: ...Midea R410A 50Hz T1 Compressor Condensing Unit DM17 03 01 56_en 75 Low temperature protection of suction Fault of suction temperature sensor ...

Page 76: ...DM17 03 01 56_en Midea R410A 50Hz T1 Compressor Condensing Unit 76 Discharge temperature protection ...

Page 77: ...Midea R410A 50Hz T1 Compressor Condensing Unit DM17 03 01 56_en 77 Hi pressure protection ...

Page 78: ...DM17 03 01 56_en Midea R410A 50Hz T1 Compressor Condensing Unit 78 Low pressure protection ...

Page 79: ...g period When the main power switch is turned on a certain extent of electric power is consumed even if the air conditioner does not run Turning off the main power switch can save energy After the air conditioner has been in service for several seasons foreign substance accumulates inside the unit to an extent dependent on the working conditions Therefore shut down the air conditioner and cut off ...

Page 80: ...e installing seat is corroded or rusted Startup Connect the indoor unit 12 hours after connect the outdoor unit to power supply Maintenance and upkeep of outdoor unit The edge of some sheet metal assemblies and the fin of the condenser are very sharp Incorrect operation may cause harm Be cautious when cleaning them up Check the air inlet and outlet of the outdoor unit periodically to see whether t...

Page 81: ... expansion valve distributor and sensor the external appearance as the following picture Midea VRF units totally have6 standard models 25 2kW 28kW 33 5kW 40kW 45kW and 50kW They can be freely combined to achieve larger capacities and the largest capacity could reach 180kW VRF units adopt DC inverter compressor or digital scroll compressor adjustable output to fit the change of cooling and heating ...

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Midea MCCU-03CN1, Technical Manual

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