Midea M2OC-18HRDN1-M Manual de usuario

ODMI-A-1110

SERVICE MANUAL

MIDEA AIRCONDITIONER

North America MARKET

DC INVERTER MULTI TYPE

M2OC-18HRDN1-M

M3OC-27HRDN1-M

M4OC-36HRDN1-M

DC MULTI OUTDOOR UNITS

ODMI-A-1110

CONTENTS

1.General information of Outdoor Units .................................................3

2.Features..................................................................................................4

3.Dimensions............................................................................................5

4.Wiring Diagram......................................................................................6

5.Refrigeration Cycle Diagram ................................................................8

6.Indoor units combination....................................................................10

7.Installation Details...............................................................................11

8.Electronic control function.................................................................20

9.Troubleshooting..................................................................................25

ODMI-A-1110

1. General information of Outdoor Units

Model name Dimension (mm(in)) Compressor

M2OC-18HRDN1-M 845x320x700(33.3x12.6x27.6) DA130S1C-20FZ

M3OC-27HRDN1-M 845x320x700(33.3x12.6x27.6) DA150S1C-20FZ

M4OC-36HRDN1-M 990x345x965(39x13.6x38) TNB306FPGMC-L

ODMI-A-1110

．

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-A-1110

3. Dimensions

mm(in)

Model W D H W1 A B

M2OC-18HRDN1-M 845((33.3) 320(12.6) 700(27.6) 908(35.7) 560(22) 335(13.2)

M3OC-27HRDN1-M

M4OC-36HRDN1-M 990(39) 345(13.6) 965(38) 1075(42.3) 624(24.6) 366(14.4)

ODMI-A-1110

4. Wiring Diagram

4.1 M2OC-18HRDN1-M

4.2 M3OC-27HRDN1-M

ODMI-A-1110

4.3 M4OC-36HRDN1-M

ODMI-A-1110

5. Refrigeration Cycle Diagram

8.1 Refrigeration circuit drawing of inverter dual zone

5.2 Refrigeration circuit drawing of inverter tri-zone

8.3 Refrigeration circuit drawing of inverter qua-zone

Liquid valve A

Gas valve C

EXV C

way

valve

Compressor

Condenser

Axial

flow fan

EXV B

EXV A

Gas valve A

Gas valve B

Liquid valve C

Liquid valve B

Evaporator

Cross

flow fan

Indoor Unit

Capillary A

Capillary B

Capillary C

Filter A

Filter B

Filter C

Main

Capillary

Auxiliary

Capillary

Check

Valve

Exhaust

temp. sensor

Indoor pipe out

temp.

sens

or B

Indoor pipe out

temp. sen

sor A

Indoor pipe out

temp. sen

or C

Outdoor Unit

Coil temp.

sensor

Indoor Unit

Cross

flow fan

Evaporator

Liquid valve A

Liquid valve B

Gas valve B

Gas valve A

EXVA

EXVB

Axial

flow fan

Condenser

Compressor

way

valve

Auxiliary

Capillary

Capillary A

Capillary B

Exhaust

temp. sensor

Indoor pipe out

temp. sen

or A

Indoor pipe out

temp. sen

or B

Filter A

Filter B

Outdoor Unit

Main

Capillary

Check

Valve

Coil temp.

sensor

ODMI-A-1110

6. Indoor units combination

6.1 Indoor unit combination for M2OC-18HRDN1-M

Comb.

Combinations

Unit A

Unit B

Dual(1x1)

—

12k

—

18k

—

Dual (1x2)

12k

6.2Indoor unit combination for M3OC-27HRDN1-M

Comb.

Combinations

Unit A

Unit B

Unit C

TRI (1x1)

—

12k

—

18k

—

TRI (1x2)

—

12k

—

18k

—

12k

—

12k

18k

—

TRI (1x3)

12k

6.3Indoor unit combination for M4OC-36HRDN1-M

Comb.

Combinations

Unit A

Unit B

Unit C

Unit D

QUA (1x1)

—

12k

—

18k

—

QUA (1x2)

—

12k

—

18k

—

12k

—

12k

18k

—

18k

—

QUA (1x3)

—

12k

—

18k

—

12k

—

12k

18k

—

18k

—

12k

—

12k

18k

—

12k

18k

—

QUA(1x4)

12k

18k

12k

18k

12k

18k

12k

18k

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