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CMV-R System Outdoor Unit

Technical Support Division

2015-12-30

GD CHIGO HEATING & VENTILATION EQUIPMENT CO., LTD.

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CMV-R System - Outdoor Unit

Part 1. General information

Part 2. Outdoor units

Content

2



Part 1.

General information

1. CMV-R introduction

2. Nomenclature

3. Outdoor units

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1. CMV-R introduction

1.1 Basic modules

a) 5 basic modules: 8HP, 10HP, 12HP, 14HP and 16HP.

b) Modules can be freely combined to become larger unit.

8HP/10HP/12HP / 14HP / 16HP. 18-32HP

34-48HP

50-64HP

1.2 Several core technologies make system high efficiency

1.2.1 High Efficiency DC inverter compressor

High pressure chamber

• has small suction refrigerant superheat, refrigerant volume efficiency is high

• Has large refrigerant discharge buffer volume, Low vibration and noise

Neodymium permanent magnet rotor, has powerful magnetic force, large torque and high efficiency

Concentrated winding, improving low frequency efficiency

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1.2.2 High Efficiency DC motor

High efficiency DC fan motor is from well-known brand Panasonic

Low noise and high efficiency because of high-density wire winding engineering

Brushless with built-in sensor

1.2.3 Stepless Control

DC fan motor can be stepless controlled by outdoor PCB according to system's operating pressure. And it is able to reduce the

energy consumption and maintain the system in the best performance.

1.2.4 180˚ Sine Waveform Control

The perfect combination of 180˚ Sine waveform rotor frequency drive control technology and excellent IPM inverters reduces the

reactive loss of motor-driven, increases motor efficiency by 12%.

1.2.5 CCT Inner-grooved Tube

CCT (Continuous Cooling Transformation) inner-grooved copper tube has high thermometric conductivity. Its inner-grooved fins

break the refrigerant flow boundary layer to enhance refrigerant disturbance to increase heat-exchanging efficiency.

1.2.6 07. 2-in-1 Refrigerant Flow Path Design

Thanks to the 2-in-1 refrigerant flow path design, the liquid refrigerant volume proportion in the condenser outlet is highly

increased, so the indoor unit's will produce more heat (or cool).

1.2.7 Supercooling Flow Path Design.

Supercooling flow path design, separates the refrigerant inlet and outlet, increase the supercooling degree, reduce the effect of

high temperature inlet gas refrigerant to low temperature outlet liquid refrigerant, therefore, the system efficiency will be greatly

increased.

1.2.8 Cross Flow Fins.

Has low air resistance and great heat transfer coefficient

Frosting improved, frost on the heat-exchanger will be well-distributed, easy for defrosting.

1.2.9 New internal structure.

Thanks to the optimization pipeline design, 5% pressure drop is reduced.

EER and COP increase, because of evaporating temperature increase and compressor work decrease.

1.3 Benefits for users

1.3.1 Excellent in EER and COP

Thanks to DC devices(compressor and motor), piping optimization design and new control logic, system's EER and COP are

observably increase.

1.3.2 Outstanding comfort ability

VRF system have excellent cooling & heating performance, thanks to the high efficiency DC fan motor, DC compressor and

optimized refrigerant flow control logic.

Precisely room temperature control by adopting large pulse EXV. Indoor temperature fluctuation can be maintain within 0.5 ˚C,

offers outstanding comfort ability.

1.3.3 Wide operation range.

Cooling operating temperature is up to 50˚C, suitable for the hot region.

Heating operating temperature is down to -20˚C. In the cold winter, CMV system can stably produce heat.

Cooling and heating at the same time operation range is -5 to 25 °C

1.3.4 7 improvements to reduce noise / Maximum 10dB(A) decrease.

Brushless DC motor

Streamline air duct design

Anti-vibration fan blade

180˚ Sine Waveform Control

Circuit Silencer

Low noise compressor

Night time silent operation

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1.3.5 Silent mode, night time noise control

Maximum 10dB(A) decrease.

1.3.6 Anti-snow Function

In the cold weather, outdoor fan will start to run for a while at intervals, for preventing the snow to accumulate on fan blade.

Because accumulated snow will freeze and block fan blade rotating, even worse it will damage the motor.

It only start when temperature is lower than 0˚C.

1.3.7 All outdoor units cycle operation

In one combination system, any outdoor unit can run as master unit.

Balance the lifespan among outdoor units in one system.

1.3.8 Intelligent defrosting program

Program starts only when unit needs to. Whereas conventional unit's defrosting timing & duration is fixed, causing fluctuations in

temperature and personal comfort.

1.3.9 Flexible for all kinds of rooms

Universal indoor unit same as two pipe system , 11 types & 76 models of indoor units, suitable for all kinds of rooms.

1.3.10 Environment friendly

Refrigerant R410A(HFC), low carbon footprint, no harm to Ozone.

1.4 Benefits for installers

1.4.1 4 unit combination, capacity up to 64HP.

When large capacity system is needed, Chigo CMV system saves money on piping installation.

1.4.2 Adjustable outdoor fan external static pressure

Thanks to DC fan motor, the external static pressure of outdoor fan is adjustable.

Outdoor units can be installed in the service floor or facility room.

Maximum ESP 85Pa.

1.4.3 New wired controller

Bidirectional communication. Indoor unit's operating parameters (error code, temperature, address) can be inquired and displayed

on the controller.

Compact design

3'' screen with white background light

Timer function

Electrical standard dimensions

User can check the error code and inquiry unit status very easy, safe and convenient.

1.4.4 Addressing methods

2 addressing methods:

Automatically addressing: system will distribute address to indoor unit automatically

Manually setting by wireless remote controller

Addressing method can be selected easily by adjusting the switch on outdoor PCB.

Automatic addressing will reduce artificial faults by 35% and 5% manual works.

• 54% system failure were caused by communication faults.

• 65% communication faults were caused by address problems.

• Most of the address problems were: address setting forgotten, wrong settings, address repeat.

1.4.5 LED display on the PCB

LED display on the PCB, it can show system's operation status and error codes.

1.4.6 Service window on the electric control box .

Thanks to the service window, checking outdoor unit’s status and setting is now easy, no need to remove the electric control box

cover.

1.4.7 Saving equipment and operation cost

Saving equipment cost by using one 3-pipe heat recovery VRF system instead of two conventional VRF system.

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Saving operation cost by running cooling and heating mode at the same time, maximum 50% of the operation cost can be saved.

1.4.8 New internal structure.

All key components are designed to close to outside, it is convenient for repair and replacement.

Thanks to the new balance technology, gas balance pipe does no longer exist, brazing points and leaking risk are decreased.

1.4.9 Oil control technology

Core oil control technology makes system safety & reliable.

1.4.10 Heavy duty coating

The new application method of the anti-corrosion coating significantly improved thickness.

Special coating can be customized to prevent rusting and spoiling.

1.4.11 3-phase power protector (Optional)

Protect the outdoor unit from instable voltage.

1.4.12 Easy installation

Easy for the outdoor unit to transporting to roof floor by elevator due to its compact size.

Communication wire length can be up to 1000m.

1.4.13 Use 2-core shielded wire as signal wire

Saves installation cost.

Reduces manual works.

1.5 Doctor Kit (CMV Maintenance software)

1.5.1 Easy to use and install

Doctor Kit includes: 1 CD software and RS485-USB converter, easy to install

Graphical interfaces, easy to use

1.5.2 Data monitoring

We can use computer to inquiry outdoor unit's operating status, error codes when connecting to Doctor Kit.

Compressors, sensors, valves operating parameter can be real-time monitored.

1.5.3 System operating curve

System operating parameter curve can be real-time displayed.

Commissioning results can be reported.

1.5.4 Troubleshooting

Built-in with troubleshooting instruction, user can follow the instruction to solve the problem when error happens.

User can also print out the instruction and take it to site to solve the problem step by step.

1.5.5 Useful tools

Input the liquid pipe diameter and length, software will calculate the additional refrigerant charge volume.

Charge volume can be saved for future reference.

Discharge pressure can be monitored when charging refrigerant

1.6 Main features

Cooling and heating at the same time ,more efficiency .

Heat recovery from one space to another , save up to 50% energy compared to conventional two pipe system .

Two individual condenser , continuous heating during defrost operation

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2. Nomenclature

2.1 Outdoor unit:

CMV

Refrigerant type

R1:R410a

Power supply

Z:380-415V/3PH/50HZ

Y:380-415V/3PH/60HZ

- R 280 W / Z R1

Capacity (*100W)

Chigo VRF system

Heat recovery DC inverter

Outdoor unit

2.2 CS mode switch box

CMV

Refrigerant type

R1:R410a

- CS 02 / R1

02: 1 divide into 2

04: 1 divide into 4

06: 1 divide into 6

Chigo VRF system

Chigo mode switch box

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3. Production line

3.1 Outdoor unit external appearance

8HP / 10HP /12HP / 14HP / 16HP 18HP / 20HP/22HP / 24HP / 26HP/28HP / 30HP / 32HP

34HP / 36HP/38HP / 40HP / 42HP/44HP / 46HP / 48HP 50HP / 52HP/54HP / 56HP / 58HP/60HP / 62HP / 64HP

3.2 CS mode switch box external appearance

CMV-CS02/R1 CMV-CS04/R1 CMV-CS06/R1

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3.3 Outdoor units combination table

Capacity

(HP) Model

Recommend combination Max. indoor

unit quantity. 8HP 10HP 12HP 14HP 16HP

8 CMV-R252W/ZR1 ● 13

10 CMV-R280W/ZR1 ● 16

12 CMV-R335W/ZR1 ● 20

14 CMV-R400W/ZR1 ● 23

16 CMV-R450W/ZR1 ● 26

18 CMV-R532W/ZR1 ● ● 29

20 CMV- R560W/ZR1 ●● 33

22 CMV- R615W/ZR1 ● ● 36

24 CMV- R680W/ZR1 ● ● 39

26 CMV- R730W/ZR1 ● ● 43

28 CMV- R800W/ZR1 ●● 46

30 CMV- R850W/ZR1 ● ● 50

32 CMV-R900W/ZR1 ●● 53

34 CMV-R960W/ZR1 ●● ● 56

36 CMV-R1010W/ZR1 ●● ● 59

38 CMV-R1065W/ZR1 ● ● ● 63

40 CMV-R1130W/ZR1 ● ● ● 64

42 CMV-R1200W/ZR1 ●●● 64

44 CMV-R1250W/ZR1 ●● ● 64

46 CMV-R1300W/ZR1 ● ●● 64

48 CMV-R1350W/ZR1 ●●● 64

50 CMV-R1432W/ZR1 ● ● ●● 64

52 CMV-R1460W/ZR1 ●● ●● 64

54 CMV-R1515W/ZR1 ● ● ●● 64

56 CMV-R1580W/ZR1 ● ● ●● 64

58 CMV-R1650W/ZR1 ●●● ● 64

60 CMV-R1700W/ZR1 ●● ●● 64

62 CMV-R1750W/ZR1 ● ●●● 64

64 CMV-R1800W/ZR1 ●●●● 64

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Part 2.

Outdoor units

1. Specifications

2. Dimensions

3. Outdoor refrigerant circuit diagram

4. Electric characteristics

5. Outdoor unit wiring diagrams and field wiring

6. Operation limits

7. Operation sound levels

8. Functional parts and safety devices

9. Exploded view

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1. Specifications

1.1 Outdoor unit (8HP, 10HP, 12HP) Model name CMV-R252W/ZR1 CMV-R280W/ZR1 CMV-R335W/ZR1

Power supply 380~415V-3ph-50Hz 380~415V-3ph-50Hz 380~415V-3ph-50Hz

Max. connected indoor units Pcs 13

16 20

Performance data

Cooling

Capacity

HP 8HP 10HP 12HP

kW 25.2 28.0 33.5

Btu/h 85000 95000 114000

RT 7.1 7.9 9.5

Power input kW 5.7 6.62 8.03

EER W/W 4.42 4.23 4.17

Heating

Capacity

kW 27.4 31.5 37.5

Btu/h 93000 107000 128000

RT 7.8 9 10.7

Power input kW 5.88 7.19 8.8

COP W/W 4.66 4.38 4.26

Max. input consumption kW 11 12 15

Max. current A 40 40 40

Capacity adjustment range

50%~130% 50%~130% 50%~130%

Compressor data

DC Inverter

compressor

Quantity

1 1 1

Type

Hermetic scroll Hermetic scroll Hermetic scroll

Brand

HITACHI HITACHI HITACHI

Model E655DHD-65D2YG E655DHD-65D2YG E655DHD-65D2YG

frequency range Hz 40-200 40-200 40-200

Crankcase heater W 40 40 40

Compressor

oil

Model

FVC68D FVC68D FVC68D

Original oil volume ml 500 per compressor 500 per compressor 500 per compressor

Additional oil volume ml 5000 per compressor 5000 per compressor 2000 per compressor

Fan data

Fan motor

Type

DC DC DC

Brand

Panasonic Nidec Panasonic/Nidec Panasonic/Nidec

Model DR-310-560-8 DR-310-560-8 DR-310-560-8

Quantity

2 2 2

Insulation class

E E E

Protection class

IP44 IP44 IP44

Power output W 560×2 560×2 560*2

Rated current A 4.2*2 4.2*2 4.2*2

Fan blade

Material

ASG20 ASG20 ASG20

Type

Axial Axial Axial

Drive

Direct-driven Direct-driven Direct-driven

Fan Quantity

2 2 2

Air flow m3/h 12000 12000 13000

Vane Quantity

3*2 3*2 3*2

Physical data

Outdoor coil

Fin type Hydrophilic Aluminum Hydrophilic Aluminum Hydrophilic Aluminum

Tube outside diameter mm Ø7.94 Ø7.94 Ø7.94

Tube type Inner-grooved copper Inner-grooved copper Inner-grooved copper

Quantity 2 2 2

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Model name CMV-R252W/ZR1 CMV-R280W/ZR1 CMV-R335W/ZR1

Refrigerant

Type R410a R410a R410a

Volume kg 12 12 12

Throttle type EXV EXV EXV

Dimension

(W*H*D)

Net mm 1260*1620*765 1260*1620*765 1260*1620*765

Packing mm 1315×1750×825 1315×1750×825 1315×1750×825

Weight Net / Gross kg 270 / 279 270 / 279 270 / 279

Outdoor sound level dB(

A)

57 57 58

Maximum operating pressure MPa 4.5 4.5 4.5

Piping & wiring data

Pipe size

Liquid pipe mm Ø12.7 Ø12.7 Ø12.7

Low pressure gas pipe mm Ø22.2 Ø25.4 Ø25.4

High pressure gas pipe mm Ø19.05 Ø19.05 Ø19.05

High pressure gas balance pipe mm Ø19.05 Ø19.05 Ø19.05

Oil balance pipe

Ø6.35 Ø6.35 Ø6.35

Max. pipe

length

Total pipe length m 1000 1000 1000

From OU to farthest IU

(Actual length / Equivalent length) m 175 / 200 175 / 200 175 /200

From 1st indoor distributor to

farthest IU m 90 90 90

CS to farthest indoor unit m 40 40 40

Max.

vertical

length

Between OU & IU

(OU above IU) m 70 70 70

Between OU & IU

(OU below IU) m 110 110 110

Between IUs m 30 30 30

Between OUs m 0 0 0

Connection

wire

Power wire size mm2 6*4+10(L≤20m) 6*4+10(L≤20m) 6*4+10(L≤20m)

10*4+10(20<L≤50m) 10*4+10(20m<L≤50m) 10*4+10(20m<L≤50m)

Signal wire type

2-core shielded cable 2-core shielded cable 2-core shielded cable

Signal wire size mm2 2×0.75 2×0.75 2×0.75

Operation temperature range

Cooling Outdoor side °C -5~50 -5~50 -5~50

Heating Outdoor side °C -20~30 -20~30 -20~30

Cooling/ Heating at same time (Outside) °C -5~25 -5~25 -5~25

Indoor side °C 16~32 16~32 16~32

Notes:

1) The cooling conditions: indoor temp.: 27˚C DB (80.6˚F), 19˚C WB (60˚F) outdoor temp.: 35˚C DB (95˚F) equivalent pipe length: 5m

drop length: 0m.

2) The heating conditions: indoor temp.: 20˚C DB (68˚F), 15˚C WB (44.6˚F) outdoor temp.: 7˚C DB (42.8˚F) equivalent pipe length: 5m

drop length: 0m.

3) Sound level: Anechoic chamber conversion value, measured at a point 1 m in front of the unit at a height of 1.3m. During actual operation,

these values are normally somewhat higher as a result of ambient conditions.

4) Maximum 85Pa outdoor ESP can be set on outdoor PCB.

5) The above data may be changed without notice for future improvement on quality and performance.

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1.2 Outdoor unit (14HP, 16HP)

Model name CMV-R400W/ZR1 CMV-RV450W/ZR1

Power supply 380~415V-3ph-50Hz 380~415V-3ph-50Hz

Max. connected indoor units Pcs 23 20

Performance data

Cooling

Capacity

HP 14HP 16HP

kW 40.0 45.0

Btu/h 136000 153000

RT 11.3 12.7

Power input kW 11.02 13.08

EER W/W 3.63 3.44

Heating

Capacity

kW 45.0 50.0

Btu/h 153000 170000

RT 12.8 14.2

Power input kW 11.0 12.63

COP W/W 4.09 3.96

Max. input consumption kW 18.8 19.8

Max. current A 60 60

Capacity adjustment range

50%~130% 50%~130%

Compressor data

DC Inverter

compressor

Quantity

2 2

Type

Hermetic scroll Hermetic scroll

Model E405DHD-42D2YG E405DHD-42D2YG

Brand

HITACHI HITACHI

Frequency range Hz 60~180 60~180

Crankcase heater W 40 40

Compressor

oil

Model

FVC68D FVC68D

Original oil volume ml 500 per compressor 500 per compressor

Additional oil volume ml 7000 per compressor 7000 per compressor

Fan data

Fan motor

Type

DC DC

Model DR-310-560-8 DR-310-560-8

Brand

Panasonic/Nidec Panasonic/Nidec

Quantity

2 2

Insulation class

E E

Protection class

IP44 IP44

Power output W 560*2 560*2

Rated current A 4.2*2 4.2*2

Fan blade

Material

ASG20 ASG20

Type

Axial Axial

Drive

Direct-driven Direct-driven

Fan Quantity

2 2

Air flow m3/h 15000 15000

Vane Quantity

3*2 3*2

Physical data

Outdoor coil

Fin type Hydrophilic Aluminum Hydrophilic Aluminum

Tube outside diameter mm Ø7.94 Ø7.94

Tube type

Inner-grooved copper tube Inner-grooved copper tube

Quantity 2 2

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Model name CMV-R400W/ZR1 CMV-R450W/ZR1

Refrigerant

Type

R410a R410a

Volume kg 16 16

Throttle type

EXV EXV

Dimension

(W*H*D)

Net mm 1260*1620*765 1260*1620*765

Packing mm 1315*1750*825 1315*1750*825

Weight Net / Gross kg 310 / 319 310 /319

Outdoor sound level dB(A) 60 60

Maximum operating pressure MPa 4.5 4.5

Piping & wiring data

Pipe size

Liquid pipe mm Ø15.88 Ø15.88

Low pressure gas pipe mm Ø28.6 Ø28.6

High pressure gas pipe mm Ø22.2 Ø22.2

High pressure gas balance

pipe mm Ø19.05 Ø19.05

Oil balance pipe mm Ø6.35 Ø6.35

Max. pipe

length

Total pipe length m 1000 1000

From OU to farthest IU

(Actual / Equivalent length ) m 175 / 200 175 / 200

From 1st indoor distributor

to farthest IU m 90 90

CS to the farthest IU m 40 40

Max.vertical

length

Between OU & IU (OU

above IU) m 70 70

Between OU & IU (OU

below IU) m 110 110

Between IUs m 30 30

Between OUs m 0 0

Connection

wire

Power wire size mm2 10*4+10(L≤20m)

16*4+10(20m<L≤50m)

10*4+10(L≤20m)

16*4+10(20m<L≤50m)

Signal wire type

2-core shielded cable 2-core shielded cable

Signal wire size mm2 2×0.75 2×0.75

Operation temperature range

Cooling Outdoor side °C -5~50 -5~50

Heating Outdoor side °C -20~30 -20~30

Cooling/Heating at same time (outside) °C -5~25 -5~25

Indoor side °C 16~32 16~32

Notes:

1) The cooling conditions: indoor temp.: 27˚C DB (80.6˚F), 19˚C WB (60˚F) outdoor temp.: 35˚C DB (95˚F) equivalent pipe length: 5m

drop length: 0m.

2) The heating conditions: indoor temp.: 20˚C DB (68˚F), 15˚C WB (44.6˚F) outdoor temp.: 7˚C DB (42.8˚F) equivalent pipe length: 5m

drop length: 0m.

3) Sound level: Anechoic chamber conversion value, measured at a point 1 m in front of the unit at a height of 1.3 m. During actual

operation, these values are normally somewhat higher as a result of ambient conditions.

4) Maximum 85Pa outdoor ESP can be set on outdoor PCB.

5) The above data may be changed without notice for future improvement on quality and performance.

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1.3 CS mode switch box

Model name CMV-CS02/R1 CMV-CS04/R1 CMV-CS06/R1

Power supply 220~240V/1Ph/50Hz

Max. indoor unit groups 2 4 6

Max. number of each group indoor unit 4 4 4

Max. number of connected indoor units 8 16 24

Max. capacity of each group indoor units kw 14 11 11

Total capacity of all connected indoor unit kw 28 45 45

Pipe

Connect to

outdoor unit


High pressure gas pipe mm Ø19.05 Ø22 Ø22

Low pressure gas pipe mm Ø25.4 Ø31.8 Ø31.8

Connect to

indoor unit


Gas pipe mm Ø12.7 Ø15.88 Ø15.88

Dimension (W*D*H) Net mm 600x225x630 940x225x630 940x225x630

Packing mm 725x300x715 1055x300x715 1055x300x715

Weight Net

Kg 20.5 34 35

Gross Kg 27 43.5 44.5

`Connection wire

Power wire mm2 2*2.5 2*2.5 2*2.5

Earth wire mm2 2.5 2.5 2.5

Single wire mm2 2-core shield (0.75)

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2. Dimensions

2.1 8HP, 10HP,12HP, 14HP, 16HP units dimension

2.2 CS model switch box dimension

Model A B C D E

CMV-CS02/R1 600 630 225 510 320

CMV-CS04/R1 940 630 225 840 320

CMV-CS06/R1 940 630 225 840 320

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2.3 Installation base dimension

Model Capacity A(mm) B(mm) C (mm) D (mm)

CMV-R252W/ZR1 8 HP

998 1302 703 817

CMV-R280W/ZR1 10 HP

CMV-R335W/ZR1 12 HP

CMV-R400W/ZR1 14 HP

CMV-R450W/ZR1 16 HP

2.4 Valve explanation

15×23 long U-shape hole

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3. System refrigerant circuit diagram

3.1 8HP, 10HP,12HP

CO

M

SV5

SV2

EXVA

EXVB

ST1 ST2

SV

4

Low pressure

switch

High pressure switch

Pressure sensor

Indoor unitLiquid pipe

Low pressure

gas pipe

High pressure gas pipe

High pressure

gas balance

Oil balance

CMV-CS04

SV1A

SV2A

SV4A

SV3A

SV1B

SV2B

SV3B

SV4B

SV7

T4

T3

T4

T5

T2 T2B

T1

T7

T7C

EXV

EXV

EXV

EXV

EXV

Subcooling

T2 T2B

T1

T2 T2B

T1

T2 T2B

T1

T2 T2B

T1

（2.0）

ST3

EXV Check valve

Subcooling

Subcooling

Subcooling

Indoor unit

Indoor unit

Indoor unit

Indoor unit

14HP,16HP

CO

M

CO

M

SV5

SV2

EXVA

EXVB

ST1 ST2

SV

4

Low pressure

switch


Pressure sensor

Indoor unitLiquid pipe

Low pressure

gas pipe


High pressure

gas balance

Oil balance

CMV-CS04

SV1A

SV2A

SV4A

SV3A

SV1B

SV2B

SV3B

SV4B

SV7

T4

T3

T4

T5

T2 T2B

T1

T7

T7C

EXV

EXV

EXV

EXV

EXV

Subcooling

T2 T2B

T1

T2 T2B

T1

T2 T2B

T1

T2 T2B

T1

（2.0）

ST3

EXV Check valve

Subcooling

Subcooling

Subcooling

Indoor unit

Indoor unit

Indoor unit

Indoor unit

19



3.2 Main cooling mode

CO

M

CO

M

SV5

SV2

EXVA

EXVB

ST1 ST2

SV

4

Low pressure switch


Pressure sensor

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Liquid pipe

Low pressure

gas pipe


High pressure

gas balance

Oil balance

SV1A

SV2A

SV4A

SV3A

SV1B

SV2B

SV3B

SV4B

SV7

T4

T3

T4

T5

T2 T2B

T1

T7

T7C

EXV

EXV

EXV

EXV

EXVSubcooling

T2 T2B

T1

T2 T2B

T1

T2 T2B

T1

T2 T2B

T1

（2.0）

ST3

EXV Check valve

Subcooling

Subcooling

Subcooling

Main heating mode

CO

M

CO

M

SV5

SV2

EXVA

EXVB

ST1 ST2

SV

4

Low pressure switch


Pressure

sensor

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Indoor unit

Liquid pipe

Low pressure

gas pipe


High pressure

gas balance

Oil balance pipe

SV1A

SV2A

SV4A

SV3A

SV1B

SV2B

SV3B

SV4B

SV7

T4

T3

T4

T5

T2 T2B

T1

T7

T7C

EXV

EXV

EXV

EXV

EXVSubcooling

T2 T2B

T1

T2 T2B

T1

T2 T2B

T1

T2 T2B

T1

（2.0）

ST3

EXV Check valve

Subcooling

Subcooling

Subcooling

20



3.3 Key parts

3.3.1 Oil Separator

It is used to separate oil from high pressure & temperature gas refrigerant that is pumped out from compressor.

3.3.2 Gas-liquid separator

It is used to store the liquid refrigerant and oil, it can protect the compressor from liquid hammer.

3.3.3 Four-way valve (ST)

ST1: It is used to control the refrigerant flow from the left heat exchanger. When ST1 is OFF, the left heat exchanger is condenser

When ST1 is ON, the left heat exchanger is evaporator .

ST2: It is used to control the refrigerant flow from the right heat exchanger . When ST2 is OFF , the right heat exchanger is condenser ,

when ST2 is ON, the right heat exchanger is evaporator .

ST3: When the system is in cooling mode , it is ON , when the system is in heating mode or mixed mode , it is OFF .

3.3.4 EXV (Electromagnetic expansion valve)

a) Max. Open degree is 480 pulses.

b) Generally when system is electrified the EXV closes 700pulse first, then opens to 350 pulse and stand by. Then the unit is started,

it opens to the right pulse.

c) When the running outdoor unit receives OFF signal, the EXV of auxiliary unit will stop while main unit is running and auxiliary

unit is stopped at the same time. If all outdoor units are stopped, the EXV will close first, and then open to the pulse of stand-by.

3.3.5 SV2

It is for spraying a little liquid refrigerant to cool compressor down. Open when any compressor discharge temperature is higher than

100˚C.

3.3.6 SV4:

a) Oil return valve.

b) Opens after the DC inverter compressor has been run for 200 seconds and then closes 10 minutes later. (For the system has only

one outdoor unit).

c) Every 20 minutes, SV4 of each outdoor unit opens for 3 minutes. (For the system has more than one outdoor unit)

3.3.7 SV5

a) It is used for quick defrosting.

b) In defrosting mode, the opening of SV5 can cut the refrigerant flowing circle, so the defrosting process will takes less time.

c) In cooling mode and main cooling , it is always off.

3.3.8 Hi pressure sensor

To detect the discharge pressure of the compressor and to control the DC fan speed

3.3.9 Pressure switch

It is used to protect the system pressure ,when the pressure is higher than 4.5Mpa or lower than 0.05Mpa , the switch will work . Once

the pressure switch is open , the compressor will stop .

21



3.4 Key functions

3.4.1 Oil return program

a) When system start up for 140 minutes, oil return program will run. After that, every 8 hours continued operating this program

will run.

b) The program will last for 3 minutes.

c) During the oil return program or unit stop suddenly, then unit restart , run as first time start and recalculate .

d) Action of indoor Fan and EXV.

Running indoor unit Stop or standby indoor unit Fan only indoor unit

Cooling mode

EXV Keep degree unchanged 300 pulse 300pulse

Fan Keep on Keep off Keep on

Heating mode

EXV Keep degree unchanged 300 pulse /

Fan Anti-cold wind Keep off /

3.4.2 All outdoor units cycle operation

a) Balance the lifespan among outdoor units in one system.

b) In cooling mode, outdoor units will change the start order when

i. Room temperature gets to the set point or

ii. After oil return program.

c) In heating mode, outdoor units will change the start order when

i. Room temperature gets to the set point, or

ii. After oil return program, or

iii. After defrost program.

3.4.3 Forced cooling program

a) After pressing it once, all indoor units and outdoor units will start cooling, no matter what mode they are running on, no matter

whether they are ON or OFF.

b) The forced cooling function is available for master unit only.

c) During forced cooling mode.

i. All indoor EXVs open to 300 pulses.

ii. All indoor fans are in high speed.

iii. All compressors are ON.

iv. All outdoor fan motors are OFF

v. Outdoor EXVs opens to 480 pulses

d) When program starts:

i. All the compressors are on

ii. Indoor fan is running at high speed

e) When the process is last for 1h or the button is pressed again, program will quit.

3.4.4 Defrost program

a) When any module’s condenser temperature (T3) < 0, last for 40minutes, this outdoor unit sends defrost order to master unit.

b) Before defrost, save current EXV opening pulses. EXV opening pulses will be recover when defrost program ends.

c) During defrosting.

i. All indoor EXVs open to 480 pulses.

ii. All indoor fans are OFF.

iii. All compressors are ON.

iv. All outdoor fan motors are OFF

v. Outdoor EXVs open to 480 pulses

22



d) It ends when in the following conditions :

i. The defrosting time is up to 10 minutes.

ii. All module’s condenser temperature (T3/T5min)≥15 ℃. If cooling only or main cooling , judge by T3

iii. System stops, or switches to non-heating mode.

e) After defrost.

i. All indoor units’ EXV recover to saved pulse.

ii. All indoor fans return to normal control.

iii. All compressors return to normal control.

iv. All outdoor fan motors return to normal control.

v. Outdoor EXVs return to normal control.

vi. SV6 is OFF

f) Low pressure protection is not available during defrost and 10minutes after defrost.

23



4. Electric characteristics

Model Outdoor Unit Power Supply Compressor Fan Motor.

Hz Voltage Min. Max. MC TOC MFC MSC RLC Output FLC

CMV-R252W/ZR1 50 380~415 342 440 18 50 50 - 64 0.56*2 4.2×2

CMV-R280W/ZR1 50 380~415 342 440 20 50 50 - 64 0.56*2 4.2×2

CMV-R335W/ZR1 50 380~415 342 440 24.7 50 50 - 68 0.56*2 4.2×2

CMV-R400W/ZR1 50 380~415 342 440 34.7 63 63 - 64×2 0.56*2 4.2×2

CMV-R450W/ZR1 50 380~415 342 440 36.5 63 63 - 64×2 0.56*2 4.2×2

Remark:

Min.: Permitted minimum operating voltage, lower than this value may damage the system

Max.: Permitted maximum operating voltage, higher than this value may damage the system

MC: Minimum Current (A)

TOC: Total Over-Current (A)

MFC: Maximum Fuse Current (A)

MSC: Maximum Starting Current (A)

RLC: Rated load Current (A)

FLC: Full Load Current (A)

Output: Fan motor rated power Output (kW)

24



5. Outdoor unit wiring diagrams and field wiring

5.1 Outdoor unit electrical control box wiring diagram

8HP,10HP,12HP

HE

AT

ER H

EA

T

INV

N

P

IPM

CN3

CN9

J1

1

UV

W

2

CN2

53

FM

BR

D

MOTER

FB JOINT

TO

MA

IN

BR

D

JOIN

TP3P4

P2

P1

CN

1C

N2

P6

P5

L

NL1

N1

CN

11

A

INP

UT

LO

AD

L1

L2

L3

N

N

P

IPM

CN3

CN9

J1

U

V

W

CN2

MOTER

FB

JOINT

TO

MA

INB

RD

JOIN

T

BC

N

A1

B1

C1

N1

PO

WE

RF

1F

24-W

AY

SV

6S

V5

SV

4S

V3

SV

2S

V1

SV

7S

V8

N

Filt

er

BR

D

React

or

SV

2S

V4

SV

5S

V6

ST

3

Fan

Moto

r

5

3

RD

YE

BL

BK

YE

BK

RD

YE

BL

BK

OR

OR

RD

RD

BK

BK

BL

YE RD

RD

RD

RD

RD

BR

BL

BKR

DB

R

BL

4

BK

RD

3-p

hase

pow

er

input

FM

BR

D

FM

PW

BR

D

RD

BK

L1

L2

L3

N

CN

1

E1

E2

XT

1

DZ

1

DZ

2

HE

AT

INV

PT

C1

PT

C2

Mu

tual

Ind

uct

or

2

BK

ST

1

IPM

Mo

dule

BR

D

P U V W N

Inve

rter

Co

mp

ress

or

P1

N1

U V W

RD

YE

BL

BK

RD

CN

7

CN

5

LE

D1

LE

D2

LE

D3

CN

4C

N18

CN

14C

N21

CN

2

CN

1

CN

20

CN

19

CN

17CN

28C

N30

CN

26C

N25

CN

27C

N28

CN

13C

N34

CN

6

CN

24C

N22

CN

23C

N32

CN

3

3-P

ha

se p

ow

er

Check

T2TX4TX3

IDU

CO

MM

OD

U

Centr

aliz

ed

contr

olle

r &

Am

mete

r

Fan

Drive

1#

Fan

Drive

2#

HP

LP

Hi.

Pre

ssure

senso

r

OD

U

CO

MM

.C

om

m.

IPM

BT

3

I A

B

T4

1

#

Tra

nsf

orm

er

Inp

ut

SV

8S

V7

SV

1S

V2

SV

3S

V4

SV

5S

V6

4-W

AY

F2F1POWERHEATER

2#

1E

XV

CH

EC

K_A

Fo

rced

refr

ige

ratio

n

OD

U M

AIN

CO

NT

RO

L B

RD

Condensi

ng

tem

p

Envi

ron

me

nt

tem

p.

Hi.

Pre

ssure

sen

sor

A1

B1

C1

N1

Hi.

Prs

s

swic

th.L

o.P

rss

swic

th.

2#

15V

CN

35C

N36

2E

XV

CH

EC

K_B

Sys

tem

AS

yste

m B

CN

33C

N12

Com

m.

IPM

A

SW

4S

W10

SW

5S

W9

SW

8S

W12

SW

7S

W15

SW

6S

W11

SW

13

CN15

3

T1

4

T2

INV

A

EXHAUST TEMP

3

T1

4

T2CN8

CN16

Condensing

temp(T5)

Curr

ent

1#

Transformer Output

CN

2'

65

34

5

LC

D

DIS

PL

AY

NN

NN

NN

NN

NN

NN

12

ON

SW

12

K1K2 E D A E X Y E P Q E H1H2 E

OD

U M

onito

r

Dig

ital A

mm

ete

r

IDU

Ce

ntr

aliz

ed

Co

ntr

olle

r

CS

Units

CO

MM

.

OD

U C

OM

M.

XT

2

1#E

VX

RC

BO

AR

D

BK

RD

ST

2

TopPip

Fan

Moto

r

Rig

htLeft

5

TRANS1

25



14HP,16HP

ST

1

Le

ft

Rig

ht

Pip Top

Pip Top

RD

RD

YE

YEB

L

BL

ST

3S

T2

CO

MP

(IN

V-B

)C

OM

P

RD

RD

E3

E4

RD

E1

E2

BL

YE

RD

RD

BK

BK

BK

BK

RD

RD

RD

RD

RD

RD

RD

RD

RD

OR

BK

OR

OR

OR

Re

acto

r

BK

PT

C2

PT

C1

BK

PT

C2

PT

C1

DZ

1-A

DZ

1-B

XT

2

OD

U C

OM

M.

CS

Units

CO

MM

.

IDU

Cen

traliz

ed

Con

trolle

r

Dig

ital A

mm

ete

r

OD

U M

on

itor

EH2H1EQPEYXEADEK2K1

SW

12

ON

21

BL

YE

RD

BL

YE

RD

BR

BL

BR

BR

BL

BL

RD

YE

BK

BK

BK

FM

PW

BR

D

TO

MA

IN

BR

D

JO

INT

MOTER

FB JOINT

Fa

n

Mo

tor

FM

BR

D

3 5

CN2

2

W

VU

1

J1

CN9

CN3

IPM

P

N

CN

1

FM

BR

D

3

5

Fa

n

Mo

tor

TO

MA

IN

BR

D

JO

INT

MOTER

FB

JOINT

CN2

W

VU

J1

CN9

CN3

IPM

P

N

YE

BK

WH

BL

NL

3L

2L

1

BK

BL

YE

RD

Filt

er

BR

D AN

1C

1B

1A

1

NC

B

LO

AD

INP

UT

A

CN

11

NL

3L

2L

1

BK

BL

YE

RD

Filt

er

BR

D BN

1C

1B

1A

1

NC

B

LO

AD

INP

UT

A

CN

11

2# M

utu

al

Ind

ucto

r

1# M

utu

al

Ind

ucto

r

OR Re

acto

r

XT

1

3-p

ha

se

po

we

r in

pu

t

BK

BL

YE

RD

NL3

L2

L1

HE

AT

INV

B

HE

AT

INV

A

NN

NN

NN

NN

NN

NN

BK

SV

6S

V5

SV

4S

V2

NSV

8S

V7

SV

1S

V2

SV

3S

V4

SV

5S

V6

4-W

AY

F2

F1

PO

WE

RH

EA

TE

R

LC

D

DIS

PL

AY

CN

2'

1#

Transformer Output

Cu

rrent

Condensing

temp(T5)

Lo.

Pressure

sensor

CN16

CN8

INV

B

4

T23

T1

EXHAUST TEMP

INV

A

4

T23

T1CN15

SW

13

SW

11

SW

6S

W15

SW

7

SW

12

SW

8S

W9

SW

5S

W10

SW

4

Co

mm

.

IPM

A

CN

12

CN

33

Syste

m B

Syste

m A

CH

EC

K_B

2E

XV

CN

36

CN

35

15

V

2#

Lo

.Prs

s

sw

icth

.

Hi.

Prs

s

sw

icth

.

N1

C1

B1

A1

Hi.

Pre

ssure

se

nsor

En

vir

onm

ent

tem

p.

Cond

ensin

g

tem

p OD

U M

AIN

CO

NT

RO

L B

RD

Fo

rced

refr

ige

ration

CH

EC

K_A

1E

XV

2#

HEATER POWER F1 F2

4-W

AY

SV

6S

V5

SV

4S

V3

SV

2S

V1

SV

7S

V8

1

#

Tra

nsfo

rme

r In

put

T4

I A

B

T3

Co

mm

.

IPM

B

OD

U

CO

MM

.H

i.

Pre

ssu

re

se

nso

r

LP

HP

Fan

Dri

ve2

#

Fan

Dri

ve1

#

OD

U

Ce

ntr

aliz

ed

co

ntr

olle

r &

Am

me

ter

IDU

CO

MM

TX3 TX4 T2 3-P

ha

se

pow

er

Ch

eck

CN

3

CN

32

CN

23

CN

22

CN

24

CN

6C

N34

CN

13

CN

28

CN

27

CN

25

CN

26

CN

30

CN

28

CN

17

CN

19

CN

20

CN

1

CN

2

CN

21

CN

14

CN

18

CN

4

LE

D3

LE

D2

LE

D1

CN

5

CN

7

RD

BK

BL

YE

RD

WVU

N1 P

1 NWVUPB

IP

M

Mo

du

le

BR

D

(IN

V-A

)

BK

RD

BK

BL

YE

RD

WVU

N1 P

1 NWVUPA

IP

M

Mo

du

le

BR

D

2#

EX

V1

#E

XV

DZ

2

N1

L1

NL

P5

P6

P1P2

P4

P3

TRANS1

26



CMV-CS02/R1

27



CMV-CS04/R1

28



CMV-CS06/R1

29



5.2 Field wiring

1) Power supply terminals

2) Communication terminals

3) Wiring between indoor , CS box and outdoor unit

L1 L2 L3 N

L1 L2 L3 N H1 H2 E P Q E L1 L2 L3 N L1 L2 L3 NH1 H2 E P Q E H1 H2 E P Q E

L N P Q E L N P Q E L N P Q E

Main power Supply (380V~415V/3PH/50Hz)

L1 L2 L3 N

Outdoor unit (Master) Outdoor unit (Slave) Outdoor unit (Slave)

Indoor unit Indoor unit Indoor unit

Sheilded layer

Power

distributor

Communication wired between outdoor units

Communication wired between outdoor units

Sheilded layer

Indoor unit power cable

Outdoor unit power cable

Power distributor Power distributor Power distributor

L N P Q E

P Q E

CS BOX

Power distributor

Connecting to other

outdoor units

Connecting to network

control system

Centralized

controller

Connecting to

indoor units

380~415V, 50Hz, 3ph

30



Note:

a) The signal connecting line between outdoor units, indoor and CS box , outdoor units and CS box has polarity. When connecting,

be careful to prevent error connection.

b) Signal line shall adopt 2/3-core shielded wire with an area above 0.75 mm2.

c) Do not bind signal line and copper pipe together with belting.

d) Make sure that the shield metal layer should be grounded well indoor control box in order to prevent interference.

e) it’s forbidden to connect 200V or above high-volt live wire to the communication terminal.

5.3 Outdoor unit power wiring

5.4.1 Separately power supply (without power facility)

Model name Power supply

Minimum power cable diameter

(L is cable length) Manual switch Circuit

breaker Size (mm2) Ground wire (mm2) Capacity (A) Fuse (A)

CMV-R252W/ZR1

380V~415V

3 phase

50Hz

6*4 (L ≤20m)

10*4 (20 < L ≤ 50m) 10 50 40

0.1A under

0.1second

CMV-R280W/ZR1

CMV-R335W/ZR1

CMV-R400WZR1 10*4 (L ≤20m)

16*4 (20 < L ≤ 50m) 16 63 60

CMV-R450W/ZR1

5.4.2 With power facilities:

a) Case 1:

Outdoor unitpower supply

Leakageprotector

Manualswitch

Outdoor unit

Outdoor unit

Outdoor unit

Outdoor unit

GND

GND

GND

GNDBranch box

LeakageprotectorManualswitch

380-415V 3N~ 50Hz

(a)

31



b) Case 2:

Note:

Select power wire for these five models separately according to relevant standard.

The wiring diameter and the length in the table indicate the condition that the voltage dropping range is within 2%. If the length

exceeds the above figure, please select the wire diameter according to relevant standard.

5.4.3 Reference table of the cable size for each capacity

Total

capacity

(HP)

Minimum wire diameter (mm2 ) Total

capacity

(HP)

Minimum wire diameter (mm2 )

Wire length ≤ 20m 20m<Wire length≤ 50m Wire length ≤ 20m 20m<Wire length≤ 50m

8 6 10 38 35 50

10 6 10 40 35 50

12 6 10 42 50 70

14 10 16 44 50 70

16 10 16 46 50 70

18 16 25 48 50 70

20 16 25 50 70 95

22 16 25 52 70 95

24 25 35 54 70 95

26 25 35 56 70 95

28 25 35 58 95 120

30 35 50 60 95 120

32 35 50 62 95 120

34 35 50 64 95 120

36 35 50

Remark:

The above selection is for reference.

For an actual electrical project, it should be considered that the cable layout, space between cable and surroundings, etc.

LeakageprotectorManualswitch

GND

Branch box

Outdoorunit

GNDOutdoorunit

GNDOutdoorunit

GNDOutdoorunit

GNDOutdoorunit

GNDOutdoorunit

(b)

(a)

Power facilities 1

(with leakage protector)

Power facilities 2

(with leakage protector)

32



5.4.4 Power wire selection

Power wiring includes the main wire (a) connecting to branch box and the wire (b) between branch box and power facilities.

Please select the wire diameter according to the following requirement.

a) Diameter of main wire (a): depends on the total horse power (HP) of outdoor unit (See 5.4.3).

Example:

In system: (8HP×1 unit+8HP×1 unit+10HP×1 unit)

So totally 26HP → See 5.4.3 → size of wire is 25mm2 (within 20m)

b) Diameter of wire (b): depends on the number of combined outdoor unit.

If outdoor unit quantity ≤ 5, the wire (b) diameter selection is same as main wire (a) selection (See 5.4.3).

If outdoor unit quantity > 5, there will be 2 electric control boxes, the wire (b) diameter selection depends on the total horse power (HP)

of outdoor units connecting to each electric control box (See 5.4.3).

33



6. Operation limits

Operation mode Outdoor temperature Indoor temperature

Cooling -5°C ~ 50C 16°C ~ 32°C

Heating -20°C ~ 25°C 16°C ~ 32°C

Cooling and heating -5°C ~ 25°C 16°C ~ 32°C

Notes:

In cooling mode , when the ambient is lower than -5°C, the system cannot start , when higher than 50°C, the system can operate but

bad performance;

In heating mode , when the ambient is lower than -20°C, the system can operate but bad performance , when higher than 25°C, the

system cannot start ;

In mixed mode , when the ambient is lower than -5°C or higher than 25°C, the system can operate both in cooling or heating mode ,

when high than 25°C, operate in cooling mode ,heating mode indoor unit cannot start; lower than -5°C, operate in heating mode ,

cooling mode indoor unit cannot start .

Precaution: the indoor relative humidity should be lower than 80%. If the air conditioner works in an environment with a relative

humidity higher than mentioned above, the surface of the air conditioner may condensate. In this case, it is recommended to set the air

speed of the indoor unit to high.

34



7. Operation sound Levels

7.1 Testing method and sound levels

1 m

1.3 m

Front sideRear side

Microphone

7.2 NC curve

Octave band center frequency（Hz）

63 125 250 500 1000 2000 4000 8000

Soun

d p

ress

ure

lev

el d

B（

0dB

=0

.000

2μ

bar）

70

60

50

40

30

20Audibility limits

of continuous

white sound

NC-50

NC-40

NC-30

NC-20

NC-60

63 125 250 500 1000 2000 4000 8000

70

60

50

40

30

20

NC-50

NC-40

NC-30

NC-20

NC-60


Soun

d p

ress

ure

lev

el d

B（

0dB

=0

.000

2μ

bar）

63 125 250 500 1000 2000 4000 8000

70

60

50

40

30

20

NC-50

NC-40

NC-30

NC-20

NC-60

Audibility limits

of continuous

white sound


Soun

d p

ress

ure

lev

el d

B（

0dB

=0

.000

2μ

bar）

Audibility limits

of continuous

white sound

Test value

Outdoor unit Sound level

dB(A)

8 HP 57

10 HP 58

12 HP 58

14 HP 60

16 HP 60

8HP 10HP,12HP

14HP, 16HP

35



8. Functional parts and safety devices

Table 1.

Item Symbol Name CMV-R252W/ZR1 CMV-R280W/ZR1 CMV-R335W/ZR1

Inverter Compressor

Inverter compressor E655DHD-65D2YG E655DHD-65D2YG E655DHD-65D2YG

Open temperature Less than 120 degree

Crank case heater 2*40W

Motor and

security

devices

Motor

Fan motor

Model DR-310-560-8 (2sets) DR-310-560-8 (2sets) DR-310-560-8 (2sets)

Output

power 560W*2 560W*2 560W*2

Safety

thermostat

On 115°C

Off /

HP High pressure switch OFF:45(±1)kg/cm2

ON:35(±1)kg/cm2

LP Low pressure switch OFF:0.5(±1)kg/cm2

ON:1.5(±1)kg/cm2

Temperature

sensor

T3,T4,T5

Temperature sensor

(condenser

outlet/ambient

temperature)

25°C=5KΩ

Discharge

thermostat Thermostat ON:120°C OFF:90°C 25°C=50KΩ

Pressure

sensor HPSH

High pressure sensor

(discharge)

Model: 45CP2-7-ENV

Character: Vout=0.870*P+0.5(MPa)

Functional

parts

PMV Electronic expansion

valve IPF-24D24 / DPF(TS1)2.4C-12 ( Foshan Hualu)

4-W/V 4-way valve ST1 and ST2 : SHF-20A(zhejiang Sanhua) ;DHF-20(Zhejiang Chunhui)

SV Solenoid valve SV2, SV4, SV5 (Zhejiang Sanhua)

36



Table 2.

Item Symbol Name CMV-R400W/ZR1 CMV-R450W/ZR1

Inverter Compressor

Inverter compressor E405DHD-42D2YG*2 E405DHD-42D2YG*2

Open temperature Less than 120 degree

Crank case heater 40W *2

Motor and

security devices

Motor

Fan motor

Model DR-310-560-8 (2sets) DR-310-560-8 (2sets)

Output

power 560W*2 560W*2

Safety On 115°C

thermostat Off /

HP High pressure switch OFF:45(±1)kg/cm2

ON:35(±1)kg/cm2

LP Low pressure switch OFF:0.5(±1)kg/cm2

ON:1.5(±1)kg/cm2

Temperature

sensor

T3,T4.T5

Temperature sensor

25°C=5KΩ (condenser outlet/ambient

temperature)

Discharge

thermostat

Thermostat (Inverter/Fixed

discharge) ON:120°C OFF:90°C 25°C=50KΩ

Pressure sensor HPSH High pressure sensor

(discharge)

Model: 45CP2-7-ENV

Character: Vout=0.870*P+0.5(MPa)

Functional parts

PMV Electronic expansion valve UKV-32D21 / DPF(TS1)3.2C-06 (Foshan Hualu)

4-W/V 4-way valve SHF-20A (Zhejiang Sanhua) ;DHF-20(Zhejiang Chunhui)

SV Solenoid valve SV2, SV4, SV5 (Zhejiang Sanhua)

37



9. Exploded view

8HP /10HP / 12HP

38



47

46

29

30

31

32

33

34

35

36

37

45

44

43

42

41

40

39

38

39



No. Part Name Quantity No. Part Name Quantity

1 Top net 2 25.8 Ambient temperature sensor 1

2 Cover 2 25.9 Discharge temperature sensor assy 1

3 Propeller fan 1 25.10 Heat exchangerTemperature sensor (T3 left one) 1

4 Holder for fan motor 4 25.11 Heat exchanger temperature sensor (T5 right one) 1

5 Propeller fan 1 26 Down partition 1

6 Fan motor 2 27 Right condenser assy 1

7 Top beam component 1 28 Left condenser assy 1

8 Back beam cotton components 1 29 SV4 Solenoid ralve components 1

9 Back column 1 30 SV2 Solenoid ralve components 1

10 Front top beam cotton components 1 31 Vapour separator inlet pipe components 1

11 Back net 2 32 Press inspiratory tube components 1

12 Front column 1 33 Right electronic expansion valve components 1

13 Right cover cotton components 1 34 Right 4-Ways valve assy 1

14 Front down beam 1 35 Oil return capillary comonents 1

15 base assy 1 36 Press exhaust tube components 1

16 Machine feet 2 37 Liquid side of shut-off valve 1

17 The cover2 1 38 Capillary conduction components 1

18 The cover1 1 39 Oil balance capillary components 1

19 Left cover cotton components 1 40 Low-pressure gas side of shut-off valve 1

20 Left clapboard 1 41 Oil balance side of shut-off valve 1

21 Right clapboard 1 42 High-pressure gas balance valve 1

22 Top panel components 2 43 Left electronic expansion valve components 1

23 Inlet cone components 2 44 Left 4-Ways valve assy 1

24 Top partition cotton components 1 45 High-pressure gas side of shut-off valve 1

25 E-parts, assy 1 46 Main 4-Ways valve assy 1

25.1 Outdoor main control board

components 1 47

Oil separator outlet pipe components 1

25.2 IPM module board 1 48 Left seat board 1

25.3 Connection board 1 49 Right seat board 1

25.4 Communication board 1 50 Oil separator 1

25.5 DC three phase filter board 1 51 Vapour separator 1

25.6 Fan power supply board 1 52 Variable speed compressor 1

25.7 Fan module board components 1 53 Fixing clamp for condenser 2

40



14HP /16HP

41



42



No. Part Name Quantity No. Part Name Quantity

1 Top net 2 25.8 Ambient temperature sensor 1

2 Cover 2 25.9 Discharge temperature sensor assy 2

3 Propeller fan 1 25.10 Heat exchanger temperature sensor (T3 left one) 1

4 Holder for fan motor 4 25.11 Heat exchanger temperature sensor (T5 right one) 1

5 Propeller fan 1 26 Down partition 1

6 Fan motor 2 27 Right condenser assy 1

7 Top beam components 1 28 Left condenser assy 1

8 Back beam cotton components 1 29 SV4 Solenoid valve components 1

9 Back column 1 30 SV2 Solenoid valve components 1

10 Front top beam cotton components 1 31 Vapour separator inlet pipe components 1

11 Back net 2 32 Press inspiratory tube components 1

12 Front column components 1 33 Right electronic expansion valve components 1

13 Right cover cotton components 1 34 Right 4-Ways valve assy 1

14 Front down beam 1 35 Oil return capillary components 1

15 base assy 1 36 Press exhaust tube components 1

16 Machine feet 2 37 Liquid side of shut-off valve components 1

17 The cover2 1 38 Capillary conduction components 1

18 The cover1 1 39 Oil balance capillary components 1

19 Left cover cotton components

1 40 Low-pressure gas side of shut-off valve

components 1

20 Left clapboard 1 41 Oil balance side of shut-off valve components 1

21 Right clapboard 1 42 High-pressure gas balance valve components 1

22 Top panel components 2 43 Left electronic expansion valve components 1

23 Inlet cone components 2 44 Left 4-Ways valve assy 1

24 Top partition cotton components 1 45 High-pressure gas side of shut-off valve

components 1

25 E-parts, assy 1 46 Main 4-Ways valve assy 1

25.1 Outdoor main control board components 1 47 Oil separator outlet pipe components 1

25.2 IPM module board 2 48 Left seat board 1

25.3 Connection board 1 49 Right seat board 1

25.4 Communication board 2 50 Oil separator 1

25.5 DC three phase filter board 1 51 Variable speed compressor 2

25.6 Fan power supply board 2 52 Vapour separator 1

25.7 Fan module board components 2 53 Fixing clamp for condenser 2

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