Midea M2OC-14HRDN1 Operating manual

ODMI-1103-A

GD Midea Refrigeration Equipment Co.,Ltd

MULTI SPLIT TYPE, HEAT PUMP AIR 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

M3OC1-27HRDN1-Q

M4OC-24HRDN1-Q

M4OC1-27HRDN1-Q

M4OC-27HRDN1

M4OC-36HRDN1-Q

M5OA-36HRDN1-Q

ODMI-1103-A

CONTENTS

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. Troubleshooting ...................................................................23

ODMI-1103-A

1. General information of Outdoor Units

Model name Dimension (mm) Net/Gross weight (kg) Compressor

M2OC-14HRDN1 760*590*285 39/41 DA108X1C-20FZ3

M2OC-14HRDN1-Q 760*590*285 39/41 DA108X1C-20FZ3

M2OC-18HRDN1 845*700*320 57.5/61.5 C-6RVN93H0N

M2OC1-18HRDN1-Q 845*700*320 53.5/57 DA130S1C-20FZ

M3OC1-21HRDN1-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*315 73/78 TNB220FLHMC-L

M4OC1-27HRDN1-Q 900*860*315 73/78 DA250S2C-30MT

M4OC-36HRDN1-Q

(220057200010) 990*965*345 86/90 TNB306FPGM

M4OC-36HRDN1-Q

(220057200011) 990*965*345 86/90 TNB306FPGMC-L

M5OA-36HRDN1-Q

(220057100360) 990*965*345 86.5/91 TNB306FPGM

M5OA-36HRDN1-Q

(220057100361) 990*965*345 86.5/91 TNB306FPGMC-L

ODMI-1103-A

2. Features

The hydrophilic fin can improve the heating efficiency at operation mode.

It is only operated in the 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 protection cover

4 way valve control

Low noise air flow system

Discharge pipe temperature protection

Compressor crankcase heater

ODMI-1103-A

3. Dimensions

MODEL W D H W1 A B

M2OC-14HRDN1-Q

M2OC-14HRDN1 760 285 590 823 530 290

M2OC-18HRDN1 845 320 700 908 560 335

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 845 320 700 908 560 335

M4OC-27HRDN1

M4OC1-27HRDN1-Q 900 315 860 980 590 333

M4OC-36HRDN1-Q

M5OA-36HRDN1-Q 990 345 965 1075 624 366

ODMI-1103-A

4. Wiring Diagram

4.1 M2OC-14HRDN1-Q

4.2 M2OC-14HRDN1

ODMI-1103-A

4.3 M2OC1-18HRDN1-Q 、M3OC1-21HRDN1-Q

4.4 M2OC-18HRDN1、M3OC-27HRDN1

ODMI-1103-A

4.5 M3OC1-27HRDN1-Q、M4OC-24HRDN1-Q

4.6 M4OC1-27HRDN1-Q、M4OC-27HRDN1

ODMI-1103-A

4.7 M4OC-36HRDN1

4.8 M5OA-36HRDN1-Q

ODMI-1103-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 quadplex type

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