Midea MSH-07CR, MSH-12HR, MSH-07HR, MSH-16CR, MSH-09CR Service Manual

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Cover

MSH-07CR; MSH-07HR MSH-09CR; MSH-09HR MSH-12CR; MSH-12HR MSH-16CR; MSH-16HR MSH-18CR

Content

1. Precaution...........................................................................................................................1

1.1 Safety Precaution.................................................................................................................................1

1.2 Warning.................................................................................................................................................1

2. Function..............................................................................................................................3

3. Dimension...........................................................................................................................5

3.1 Indoor unit.............................................................................................................................................5

3.2 Outdoor unit..........................................................................................................................................5

4. Specification.......................................................................................................................6

5. Refrigerant cycle diagram.................................................................................................9

6. Operation limits................................................................................................................10

6.1 Cooling operation...............................................................................................................................10

6.2 Heating operation...............................................................................................................................10

7. Schematic diagram and Wiring diagram........................................................................12

7.1. Schematic diagram.............................................................................................................................12

7.2. Wiring diagram....................................................................................................................................13

8. Installation details............................................................................................................21

8.1 Wrench torque sheet for installation...................................................................................................21

8.2 Connecting the cables........................................................................................................................21

8.3 Pipe length and the elevation.............................................................................................................21

8.4 Air purging of the piping and indoor unit............................................................................................23

8.5 Pumping down (Re-installation).........................................................................................................24

8.6 Re-air purging (Re-installation)..........................................................................................................25

8.7 Balance refrigerant of the 2-way, 3-way valves..................................................................................26

8.8 Evacuation..........................................................................................................................................27

8.9 Gas charging......................................................................................................................................28

9. Pressure table...................................................................................................................29

9.1 MSH-07CR.........................................................................................................................................29

9.2 MSH-07HR.........................................................................................................................................29

9.3 MSH-09CR.........................................................................................................................................29

9.4 MSH-09HR.........................................................................................................................................29

9.5 MSH-12CR.........................................................................................................................................30

9.6 MSH-12HR.........................................................................................................................................30

9.7 MSH-16CR.........................................................................................................................................30

9.8 MSH-16HR.........................................................................................................................................31

9.9 MSH-18CR.........................................................................................................................................31

10. Capacity table...................................................................................................................32

10.1 MSH-07CR.........................................................................................................................................32

10.2 MSH-07HR.........................................................................................................................................32

Content

10.3 MSH-09CR.........................................................................................................................................33

10.4 MSH-09HR.........................................................................................................................................33

10.5 MSH-12CR.........................................................................................................................................34

10.6 MSH-12HR.........................................................................................................................................34

10.7 MSH-16CR.........................................................................................................................................35

10.8 MSH-16HR.........................................................................................................................................35

10.9 MSH-18CR.........................................................................................................................................36

11. Electronic function...........................................................................................................37

11.1 Proper symbols and their meaning.....................................................................................................37

11.2 Function..............................................................................................................................................37

11.3 Protection............................................................................................................................................37

11.4 Fan-only mode....................................................................................................................................38

11.5 Cooling mode......................................................................................................................................38

11.6 Dehumidifying mode...........................................................................................................................39

11.7 Heating mode.....................................................................................................................................39

11.8 Defrosting mode (available for heating mode)...................................................................................41

11.9 Auto mode..........................................................................................................................................42

11.10 Force cooling function........................................................................................................................42

11.11 Sleep mode.........................................................................................................................................43

11.12 Auto restart function...........................................................................................................................43

11.13 PLASMA (optional):............................................................................................................................43

11.14 Turbo mode.........................................................................................................................................43

12. Model and Parameters.....................................................................................................44

13. Troubleshooting...............................................................................................................45

13.1 Display board......................................................................................................................................45

13.2 Troubleshooting..................................................................................................................................45

13.3 Diagnostic chart..................................................................................................................................46

13.4 Resetting phenomenon often occurs during operation......................................................................47

13.5 Operation lamp flashes and Timer lamp off.......................................................................................47

13.6 Operation lamp flashes and Timer lamp on.......................................................................................47

13.7 Operation lamp off and Timer lamp flashes.......................................................................................48

13.8 Operation lamp on and Timer lamp flashes.......................................................................................48

13.9 Operation lamp flashes, Timer lamp flashes......................................................................................48

14. Characteristic of temperature sensor.............................................................................49

Service manual

2. Function

Indoor unit

Operation ON/OFF by remote controller

Room temperature sensor. Pipe temperature sensor.

Sensing by room temperature

Maintain the room temperature in accordance with the setting temperature.

Room temperature control

Prevent the water being freezed on evaporator by sensing the evaporator pipe temperature in cooling mode

Anti-freezing control in cooling

Restarting is for approx. 3 minutes..

Time Delay Safety control

Turbo wind, high, med, low, breeze.

Indoor fan speed control

The unit will decide the louver direction according to operation mode.

Two-direction air vane

The fan is turn to low speed (cooling/heating). The unit will be turn off at the seventh hour.

Sleep mode auto control

The function is usually used in rainy days in springtime or damp areas.

Independent dehumidification

The louver can be set at the desired position or swing up and down automatically

Air flow Direction control

The mode can be change by the room temperature.

Auto mode

Easy clean panel

Flexible wiring connection

Auto defrost

Temp. Compensation

The function will be operated in any operation mode.

Plasma (Optional)

Prevent the cold wind at the beginning of unit start.

Anti-cold function

Self-diag. function

Auto-restart function

When the power supply is interrupted and then restore, the air conditioners automatically restore the previous function setting.

Tele Remote control (Optional)

Service manual

The unit has 3 mins delay between continuously ON/OFF operations.

Outdoor unit

Power relay control

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

Hydrophilic aluminum fin

It is only operated in the heating operation mode except defrosting operation.

Anti-rust cabinet

Valve protection cover

4 way valve control

Made from electrolytic zinc steel sheet and anti-rust coated components.

It protects the valves and prevents water from dripping.

Low noise air flow system

Bird tail propeller fan makes the outdoor unit run more quietly.

Discharge pipe temperature protect

Service manual

3. Dimension

3.1 Indoor unit

3.2 Outdoor unit

Dimension Mode

W H D

7K 750 250 205 9K 750 250 205 12K 815 280 215 16K 920 293 224 18K 920 293 224

Dimension Mode

W H D L1 L2 L3

7K 700 535 250 458 280 540 9K 700 535 250 458 280 540 12K 780 527 242 548 266 540 16K 780 527 242 548 266 540 18K 845 690 335 560 360 695

Service manual

4. Specification

Model MSH-07CR MSH-07HR MSH-09CR MSH-09HR Power supply Ph-V-Hz 1,220-240V, 50Hz 1,220-240V, 50Hz 1,220-240V, 50Hz 1,220-240V~, 50Hz

Capacity Btu/h 7000 7000 9000 9000 Input W 800 800 1000 1000 Rated current A 3.6 3.6 4.5 4.5

Cooling

EER Btu/w.h 8.8 8.8 9.0 9.0 Capacity Btu/h / 7600 / 10000 Input W / 760 / 980 Rated current A / 3.4 / 4.4

Heating

COP W/W / 2.9 / 3.0 Max. input consumption W 1050 1050 1300 1300 Max. current A 5 5 7 7

Starting current A 18 18 25 25

Model 2P14C235ANA 2P14C235ANA PH165X1CY-4DG2 2P18SS225ANK

Type Rotary Rotary Rotary Rotary

Brand GD Matsushita GD Matsushita GD Toshiba GD Matsushita

Capacity Btu/h 7500 7500 9380 9920

Input W 725 725 900 970

Rated current(RLA) A 3.4 3.4 4.1 4.5

Locked rotor Amp(LRA) A 15 15 24 24

Thermal protector MRA98854 MRA98854

UP3QE0591-T61 (internal)

MRA98745 (external)

Capacitor uF 25 25 25 30

Compressor

Refrigerant oil ml ATOMOS M60 270 ATOMOS M60 270 SUNISO 400 SUNISO 350

Model RPG13H RPG13H RPG13H RPG13H

Brand WEILING WEILING WEILING WEILING

Input W 36.5 36.5 36.5 36.5

Capacitor uF 1.2uf/450V 1.2uf/450V 1.2uf/450V 1.2uf/450V

Indoor fan motor

Speed(hi/mi/lo) r/min 1020/920/900 1020/920/900 1100/1020/950 1100/1020/950 Indoor air flow (Hi/Mi/Lo) m3/h 380/350/320 380/350/320 450/420/390 450/420/390 Indoor noise level (Hi/Mi/Lo) dB(A) 35/33/31 35/33/31 37/35/32 37/35/32

Model YDK24-6T YDK24-6T YDK24-6F YDK24-6F

Brand WEILING WEILING WEILING WEILING

Input W 70 70 70 70

Capacitor uF 3 3 2.5 2.5

Outdoor fan motor

Speed r/min 850 850 850 850 Outdoor air flow m3/h 1500 1400 1500 1500 Outdoor noise level dB(A) 52 52 53 53 Refrigerant type R22 g 580 620 580 700

Liquid side/ Gas side mm φ6.35/φ9.53 φ6.35/φ9.53 φ6.35/φ9.53 φ6.35/φ9.53

Max. pipe length m 10 10 10 10

Refrigerant piping

Max. in level m 5 5 5 5 Operation temp ℃ 17-30 17-30 17-30 17-30 Ambient temp ℃ 17-45 -7-45 17-45 -7-45 Application area m2 10-14 10-14 14-21 14-21

Note:

The noise date is base on hemi-anechoic chamber, during actual operation; these values are normally somewhat different as a result of ambient condition. The above design and specifications are subject to change without prior notice for product improvement.

Service manual

2Model MSH-12CR MSH-12HR MSH-16CR MSH-16HR Power supply Ph-V-Hz 1, 220-240V, 50Hz 1, 220-240V, 50Hz 1,220-240V, 50Hz 1,220-240V, 50Hz

Capacity Btu/h 12000 12000 16000 16000 Input W 1280 1320 1760 1760 Rated current A 6 6.1 8.6 8.6

Cooling

EER Btu/w.h 9.4 9.1 9.09 9.09 Capacity Btu/h / 14000 / 18500 Input W / 1370 / 1850 Rated current A / 6.3 / 8.9

Heating

COP W/W / 3.0 / 2.93 Max. input consumption W 1850 1850 2400 2400 Max. current A 9.6 9.6 11 11 Starting current A 29 30 36 36

Model PH240X2C-4FT 2K25S225BUA PH290X2C-4FT1 PH290X2C-4FT1

Type Rotary Rotary Rotary Rotary

Brand GD Toshiba GD Matsushita GD Toshiba GD Toshiba

Capacity Btu/h 14000 14700 17435 17435

Input W 1355 1468 1670 1670

Rated current(RLA) A 6.3 6.8 8.0 8.0

Locked rotor Amp(LRA) A 29 30 41.2 41.2

Thermal protector Internal Internal Internal Internal

Capacitor uF 35 40 35 35

Compressor

Refrigerant oil ml 480 490 520 520

Model RPG20D RPG20D RPG28D RPG28D

Brand WEILING WEILING WEILING WEILING

Input W 49.2 49.2 55 55

Capacitor uF 1.5uf/450V 1.5uf/450V 1.5UF/450V 1.5UF/450V

Indoor fan motor

Speed(hi/mi/lo) r/min 1220/1000/800 1220/1000/800 1180/1080/800 1180/1080/800 Indoor air flow (Hi/Mi/Lo) m3/h 560/520/480 560/520/480 850/700/600 850/700/600 Indoor noise level (Hi/Mi/Lo) dB(A) 38/32/28 38/32/28 44/41/38 44/41/38

Model YDK24-6 YDK25-6 YDK36-6 YDK36-6

Brand WEILING WEILING WEILING WEILING

Input W 72 96 96 96

Capacitor uF 2.5uf/450V 2.5uf/450V 2.5uf/450V 2.5uf/450V

Outdoor fan motor

Speed r/min 850 900 900 900 Outdoor air flow m3/h 1900 1900 1800 1800 Outdoor noise level dB(A) 53 53 54 54 Refrigerant type R22 g 830 1080 1050 1400

Liquid side/ Gas side mm φ6.35/φ12.7 φ6.35/φ12.7 φ6.35/φ12.7 φ6.35/φ12.7

Max. pipe length m 10 10 10 10

Refrigerant piping

Max. in level m 5 5 5 5 Operation temp ℃ 17-30 17-30 17-30 17-30 Ambient temp ℃ 17-45 -7-45 17-45 -7-45 Application area m2 18-26 18-26 28-40 28-40

Note:

Service manual

Model MSH-18CR Power supply Ph-V-Hz 1, 220-240V~, 50Hz

Capacity Btu/h 18000 Input W 1980 Rated current A 9.0

Cooling

EER Btu/w.h 9.09 Capacity Btu/h / Input W / Rated current A /

Heating

COP W/W / Max. input consumption W 2100 Max. current A 12.0 Starting current A 42

Model SHW33TC4-U

Type Rotary

Brand 上海日立

Capacity Btu/h 20438

Input W 1990

Rated current(RLA) A 9.3

Locked rotor Amp(LRA) A 41.2

Thermal protector Internal

Capacitor uF 50

Compressor

Refrigerant oil ml 600

Model RPG28D

Brand WEILING

Input W 55

Capacitor uF 1.5UF/450V

Indoor fan motor

Speed(hi/mi/lo) r/min 1180/1080/800 Indoor air flow (Hi/Mi/Lo) m3/h 850/700/600 Indoor noise level (Hi/Mi/Lo) dB(A) 44/41/38

Model YDK53-6

Brand WEILING

Input W 100

Capacitor uF 2.5uf

Outdoor fan motor

Speed r/min 640 Outdoor air flow m3/h 2200 Outdoor noise level dB(A) 54 Refrigerant type (R22) g 1220

Liquid side/ Gas side mm φ6.35/φ12.7

Max.pipe length m 15

Refrigerant piping

Max. in level m 8 Operation temp ℃ 17-30 Ambient temp ℃ 17-45 Application area m2 34－49

Note:

Service manual

5. Refrigerant cycle diagram

Ø Cooling only

Ø Heat pump mode

Service manual

6. Operation limits

6.1 Cooling operation

Outdoor unit air temp.℃ DB

Indoor air temp. ℃ DB Note: The chart is the result from the continuous operation under constant air temperature conditions.

However, excludes the initial pull-down stage.

6.2 Heating operation

Indoor air temp. ℃ DB

Outdoor unit air temp.℃ DB Note: The chart is the result from the continuous operation under constant air temperature conditions.

However, excludes the initial pull-down stage.

Service manual

7. Schematic diagram and Wiring diagram

7.1. Schematic diagram

Service manual

7.2. Wiring diagram

7.2.1 MSH-07CR, MSH-09CR，

+ 29 hidden pages

Midea MSH-07CR, MSH-12HR, MSH-07HR, MSH-16CR, MSH-09CR Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual