Gree GWH09TB-S3DNA1E/I, GWH12TB-S3DNA1D/I, GWH09TB-S3DNA3D/I, GWH12TB-S3DNA3D/I, GWH09TB-S3DNA1D/O Service Manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

Change for Life

Service Manual

Models: GWH09TB-S3DNA1D

GWH09TB-S3DNA1E
GWH09TB-S3DNA2D
GWH09TB-S3DNA3D
GWH12TB-S3DNA1D
GWH12TB-S3DNA2D
GWH12TB-S3DNA3D
(Refrigerant R410A)

Service Manual

Table of Contents

Table of Contents

Part

Ⅰ

: Technical Information

.......................................................................1

1. Summary

......................................................................................................................1

2. Specications

..........................................................................................................3

2.1 Specication Sheet ...........................................................................................................3

2.2 Operation Characteristic Curve ........................................................................................9

2.3 Capacity Variation Ratio According to Temperature .........................................................9

2.4 Noise Curve ....................................................................................................................10

2.5 Cooling and Heating Data Sheet in Rated Frequency ...................................................10

3. Outline Dimension Diagram

...................................................................... 11

3.1 Indoor Unit ...................................................................................................................... 11

3.2 Outdoor Unit ...................................................................................................................12

4. Refrigerant System Diagram

....................................................................13

5. Electrical Part

.........................................................................................................14

5.1 Wiring Diagram ...............................................................................................................14

5.2 PCB Printed Diagram .....................................................................................................18

6. Function and Control

......................................................................................20

6.1 Remote Controller Introduction .....................................................................................20

6.2 Brief Description of Modes and Functions ......................................................................25

Part

Ⅱ

: Installation and Maintenance

.................................................33

7. Notes for Installation and Maintenance

..........................................33

8. Installation

................................................................................................................35

8.1 Installation Dimension Diagram ......................................................................................35

8.2 Installation Parts-checking ............................................................................................37

8.3 Selection of Installation Location ....................................................................................37

8.4 Electric Connection Requirement ...................................................................................37

8.5 Installation of Indoor Unit ................................................................................................37

8.6 Installation of Outdoor Unit .............................................................................................40

8.7 Vacuum Pumping and Leak Detection ...........................................................................41

8.8 Check after Installation and Test Operation ...................................................................41

Service Manual

Table of Contents

9. Maintenance

............................................................................................................42

9.1 Judgement by Flashing LED of Indoor/Outdoor Unit ......................................................42

9.2 Procedure of Troubleshooting ........................................................................................49

9.3 Troubleshooting for Normal Malfunction .........................................................................64

10. Exploded View and Parts List

..............................................................66

10.1 Indoor Unit ....................................................................................................................66

10.2 Outdoor Unit .................................................................................................................72

11. Removal Procedure

.......................................................................................77

11.1 Removal Procedure of Indoor Unit ...............................................................................77

11.2 Removal Procedure of Outdoor Unit ............................................................................84

Appendix:

........................................................................................................................90

Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................90

Appendix 2: Conguration of Connection Pipe .....................................................................90

Appendix 3: Pipe expanding method ....................................................................................91

Appendix 4: List of Resistance for Temperature Sensor ......................................................92

1

Service Manual

Technical Information

1. Summary

Indoor Unit:

Part

Ⅰ

: Technical Information

Outdoor Unit:

GWH09TB-S3DNA1D/O
GWH12TB-S3DNA1D/O

GWH09TB-S3DNA1E/O

GWH09TB-S3DNA1D/I
GWH09TB-S3DNA1E/I
GWH12TB-S3DNA1D/I

GWH09TB-S3DNA2D/I
GWH12TB-S3DNA2D/I

GWH09TB-S3DNA3D/I
GWH12TB-S3DNA3D/I

Remote Controller:

YAG1FB

FAN

MODE

ON/OFF

2

Technical Information

Service Manual

Model List

NO. Model Product code Indoor model Indoor product code Outdoor model Outdoor product code

1 GWH09TB-S3DNA1D CB148008400 GWH09TB-S3DNA1D/I CB148N08400

GWH09TB-S3DNA1D/O

CB148W08400

2

GWH09TB-S3DNA2D CB411002902 GWH09TB-S3DNA2D/I CB411N02902

3

GWH09TB-S3DNA3D CB412003300 GWH09TB-S3DNA3D/I CB412N03300

4

GWH09TB-S3DNA1D CB148008401 GWH09TB-S3DNA1D/I CB148N08400

CB148W08401

5

GWH09TB-S3DNA1D CB148008407 GWH09TB-S3DNA1D/I CB148N08402

6

GWH12TB-S3DNA1D CB148008300 GWH12TB-S3DNA1D/I CB148N08300

GWH12TB-S3DNA1D/O

CB148W08300

7

GWH12TB-S3DNA2D CB411003002 GWH12TB-S3DNA2D/ICB411N03002

8

GWH12TB-S3DNA3D CB412003500 GWH12TB-S3DNA3D/I CB412N03500

9

GWH12TB-S3DNA1D CB148008301 GWH12TB-S3DNA1D/I CB148N08300

CB148W08301

10

GWH12TB-S3DNA1D CB148008307 GWH12TB-S3DNA1D/I CB148N08302

11

GWH09TB-S3DNA1E CB148009300

GWH09TB-S3DNA1E/I CB148N09300 GWH09TB-S3DNA1E/O

CB148W09300

12

GWH09TB-S3DNA1E CB148009301 CB148W09301

3

Service Manual

Technical Information

Model

1.GWH09TB-S3DNA1D

2.GWH09TB-S3DNA2D

3.GWH09TB-S3DNA3D

GWH09TB-S3DNA1D

Product Code

1.CB148008400

2.CB411002902

3.CB412003300

CB148008401

CB148008407

Power Supply

Rated Voltage

V~

220-240 220-240

Rated Frequency

Hz

50/60 50/60

Phases 1 1

Power Supply Mode Outdoor Outdoor

Cooling Capacity

W

2600 2600

Heating Capacity

W

3000 3000

Cooling Power Input

W

600 600

Heating Power Input

W

650 650

Cooling Current Input

A

2.7 2.7

Heating Current Input

A

3.2 3.2

Rated Input

W

1600 1600

Rated Current

A

7.1 7.1

Air Flow Volume(SH/H/MH/M/ML/L/SL)

m3/h

650/600/550/500/450/400/350 650/600/550/500/450/400/350

Dehumidifying Volume

L/h

0.8 0.8

EER

W/W

4.33 4.33

COP

W/W

4.62 4.62

SEER 8.5 8.5

HSPF / /

Application Area

m

2

12-18 12-18

Indoor Unit

Indoor Unit Model

1.GWH09TB-S3DNA1D/I

2.GWH09TB-S3DNA2D/I

3.GWH09TB-S3DNA3D/I

GWH09TB-S3DNA1D/I

Indoor Unit Product Code

1.CB148N08400

2.CB411N02902

3.CB412N03300

CB148N08400
CB148N08402

Fan Type Cross-ow Cross-ow
Fan Diameter Length(DXL)

mm

Φ98X662 Φ98X662

Cooling Speed(SH/H/MH/M/ML/L/SL)

r/min

1300/1050/1000/900/800/700/500 1300/1050/1000/900/800/700/500

Heating Speed(SH/H/MH/M/ML/L/SL)

r/min

1300/1150/1080/1030/980/900/850 1300/1150/1080/1030/980/900/850

Fan Motor Power Output

W

15 15

Fan Motor RLA

A

0.07 0.07

Fan Motor Capacitor

μF

/ /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter

mm

Φ7 Φ7

Evaporator Row-n Gap

mm

2-1.5 2-1.5

Evaporator Coil Length (LXDXW)

mm

662X25.4X305 662X25.4X305
Swing Motor Model MP24HA/MP24HB/MP24HC MP24HA/MP24HB/MP24HC
Swing Motor Power Output

W

2 2

Fuse Current

A

3.15 3.15

Sound Pressure Level
(SH/H/MH/M/ML/L/SL)

dB (A)

43/36/34/32/30/28/26 43/36/34/32/30/28/26

Sound Power Level
(SH/H/MH/M/ML/L/SL)

dB (A)

55/48/46/44/42/40/38 55/48/46/44/42/40/38

Dimension (WXHXD)

mm

866X292X209 866X292X209

Dimension of Carton Box (LXWXH)

mm

942X374X282 942X374X282

Dimension of Package (LXWXH)

mm

945X377X297 945X377X297

Net Weight

kg

11 11

Gross Weight

kg

13 13

2. Specications

2.1 Specication Sheet

4

Technical Information

Service Manual

The above data is subject to change without notice; please refer to the nameplate of the unit.

Outdoor Unit

Outdoor Unit Model

GWH09TB-S3DNA1D/O GWH09TB-S3DNA1D/O

Outdoor Unit Product Code

CB148W08400 CB148W08401

Compressor Manufacturer

ZHUHAI GREE DAIKIN DEVICE CO.,

LTD

ZHUHAI GREE DAIKIN DEVICE CO.,

LTD

Compressor Model

1GDY23AXD 1GDY23AXD

Compressor Oil

FVC50K FVC50K

Compressor Type

Rotary Rotary

Compressor LRA.

A 16.5 16.5

Compressor RLA

A 4 4

Compressor Power Input

W 845 845

Compressor Overload Protector

HPC 115/95 HPC 115/95

Throttling Method

Electron expansion valve Electron expansion valve

Set Temperature Range °C

16~30 16~30

Cooling Operation Ambient

Temperature Range

°C

-15~48 -15~48

Heating Operation Ambient

Temperature Range

°C

-20~24 -7~24

Condenser Form

Aluminum Fin-copper Tube Aluminum Fin-copper Tube

Condenser Pipe Diameter

mm Φ7.94 Φ7.94

Condenser Rows-n Gap

mm 2.5-1.5 2.5-1.5

Condenser Coil Length (LXDXW)

mm 733X57X550 733X57X550

Fan Motor Speed

rpm 900/600 900/600

Fan Motor Power Output

W 30 30

Fan Motor RLA

A 0.15 0.15

Fan Motor Capacitor

μF / /

Outdoor Unit Air Flow Volume

m3/h 2400 2400

Fan Type

Axial-ow Axial-ow

Fan Diameter

mm Φ438 Φ438

Defrosting Method

Automatic Defrosting Automatic Defrosting

Climate Type

T1 T1

Isolation

I I

Moisture Protection

IP24 IP24

Permissible Excessive Operating
Pressure for the Discharge Side

MPa 4.3 4.3

Permissible Excessive Operating
Pressure for the Suction Side

MPa 2.5 2.5

Sound Pressure Level (H/M/L)

dB (A) 54/-/- 54/-/-

Sound Power Level (H/M/L)

dB (A) 63/-/- 63/-/-

Dimension (WXHXD)

mm 899X596X378 899X596X378

Dimension of Carton Box (LXWXH)

mm 945X417X630 945X417X630

Dimension of Package (LXWXH)

mm 948X420X645 948X420X645

Net Weight

kg 41 41

Gross Weight

kg 44 44

Refrigerant

R410A R410A

Refrigerant Charge

kg 1.2 1.2

Connection
Pipe

Connection Pipe Length

m 5 5

Connection Pipe Gas Additional

Charge

g/m 20 20

Outer Diameter Liquid Pipe

mm Φ6 Φ6

Outer Diameter Gas Pipe

mm Φ9.52 Φ9.52

Max Distance Height

m 10 10

Max Distance Length

m 15 15

Note: The connection pipe applies metric diameter.

5

Service Manual

Technical Information

Model

1.GWH12TB-S3DNA1D

2.GWH12TB-S3DNA2D

3.GWH12TB-S3DNA3D

GWH12TB-S3DNA1D

Product Code

1.CB148008300

2.CB411003002

3.CB412003500

CB148008301
CB148008407

Power

Supply

Rated Voltage

V~ 220-240 220-240

Rated Frequency

Hz 50/60 50/60

Phases

1 1

Power Supply Mode

Outdoor Outdoor

Cooling Capacity

W 3500 3500

Heating Capacity

W 4000 4000

Cooling Power Input

W 900 900

Heating Power Input

W 1000 1000

Cooling Current Input

A 4.0 4.0

Heating Current Input

A 4.5 4.5

Rated Input

W 1700 1700

Rated Current

A 8.0 8.0

Air Flow Volume(SH/H/MH/M/ML/L/SL)

m3/h 750/650/580/520/470/420/350 750/650/580/520/470/420/350

Dehumidifying Volume

L/h 1.4 1.4

EER

W/W 3.89 3.89

COP

W/W 4.00 4.00

SEER

8 8

HSPF

/ /

Application Area

m

2

16-24 16-24

Indoor Unit

Indoor Unit Model

1.GWH12TB-S3DNA1D/I

2.GWH12TB-S3DNA2D/I

3.GWH12TB-S3DNA3D/I

GWH12TB-S3DNA1D/I

Indoor Unit Product Code

1.CB148N08300

2.CB411N03002

3.CB412N03500

CB148N08300
CB148N08402

Fan Type

Cross-ow Cross-ow

Fan Diameter Length(DXL)

mm Φ98X662 Φ98X662

Cooling Speed(SH/H/MH/M/ML/L/SL)

r/min 1350/1070/1000/900/800/700/500 1350/1070/1000/900/800/700/500

Heating Speed(SH/H/MH/M/ML/L/SL)

r/min 1350/1150/1080/1030/980/900/850 1350/1150/1080/1030/980/900/850

Fan Motor Power Output

W 15 15

Fan Motor RLA

A 0.07 0.07

Fan Motor Capacitor

μF / /

Evaporator Form

Aluminum Fin-copper Tube Aluminum Fin-copper Tube

Evaporator Pipe Diameter

mm Φ7 Φ7

Evaporator Row-n Gap

mm 2-1.5 2-1.5

Evaporator Coil Length (LXDXW)

mm 662X25.4X305 662X25.4X305

Swing Motor Model

MP24HA/MP24HB/MP24HC MP24HA/MP24HB/MP24HC

Swing Motor Power Output

W 2 2

Fuse Current

A 3.15 3.15

Sound Pressure Level
(SH/H/MH/M/ML/L/SL)

dB (A) 43/36/34/32/30/28/26 43/36/34/31/28/26/22

Sound Power Level
(SH/H/MH/M/ML/L/SL)

dB (A) 55/48/46/44/42/40/38 54/48/46/43/40/38/34

Dimension (WXHXD)

mm 866X292X209 866X292X209

Dimension of Carton Box (LXWXH)

mm 942X374X282 942X374X282

Dimension of Package (LXWXH)

mm 945X377X297 945X377X297

Net Weight

kg 11 11

Gross Weight

kg 13 13

6

Technical Information

Service Manual

The above data is subject to change without notice; please refer to the nameplate of the unit.

Outdoor Unit

Outdoor Unit Model

GWH12TB-S3DNA1D/O GWH12TB-S3DNA1D/O

Outdoor Unit Product Code

CB148W08300 CB148W08301

Compressor Manufacturer

CHINA RESOURCES SANYO

COMPRESSOR CO. LTD.

CHINA RESOURCES SANYO

COMPRESSOR CO. LTD.

Compressor Model

C-6RZ110H1A C-6RZ110H1A

Compressor Oil

FV50S FV50S

Compressor Type

Rotary Rotary

Compressor LRA. A

33 33

Compressor RLA A

4.59 4.59

Compressor Power Input W

800 800

Compressor Overload Protector

1NT11L-3979 1NT11L-3979

Throttling Method

Electron expansion valve Electron expansion valve

Set Temperature Range °C

16~30 16~30

Cooling Operation Ambient

Temperature Range

°C

-15~48 -15~48

Heating Operation Ambient

Temperature Range

°C

-20~24 -7~24

Condenser Form

Aluminum Fin-copper Tube Aluminum Fin-copper Tube

Condenser Pipe Diameter mm

Φ9.52 Φ9.52

Condenser Rows-n Gap mm

2-1.4 2-1.4

Condenser Coil Length (LXDXW) mm

803X44X559 803X44X559

Fan Motor Speed rpm

850/750/600 850/750/600

Fan Motor Power Output W

40 40

Fan Motor RLA A

0.2 0.2

Fan Motor Capacitor μF

/ /

Outdoor Unit Air Flow Volume m3/h

2400 2400

Fan Type

Axial-ow Axial-ow

Fan Diameter mm

Φ445 Φ445

Defrosting Method

Automatic Defrosting Automatic Defrosting

Climate Type

T1 T1

Isolation

I I

Moisture Protection

IP24 IP24

Permissible Excessive Operating
Pressure for the Discharge Side

MPa

4.3 4.3

Permissible Excessive Operating
Pressure for the Suction Side

MPa

2.5 2.5

Sound Pressure Level (H/M/L) dB (A)

54/-/- 54/-/-

Sound Power Level (H/M/L) dB (A)

63/-/- 63/-/-

Dimension (WXHXD) mm

899X596X378 899X596X378

Dimension of Carton Box (LXWXH) mm

945X417X630 945X417X630

Dimension of Package (LXWXH) mm

948X420X645 948X420X645

Net Weight kg

43 43

Gross Weight kg

46 46

Refrigerant

R410A R410A

Refrigerant Charge kg

1.3 1.3

Connection
Pipe

Connection Pipe Length m

5 5

Connection Pipe Gas Additional

Charge

g/m

20 20

Outer Diameter Liquid Pipe mm

Φ6 Φ6

Outer Diameter Gas Pipe mm

Φ12 Φ12

Max Distance Height m

10 10

Max Distance Length m

20 20

Note: The connection pipe applies metric diameter.

7

Service Manual

Technical Information

Model GWH09TB-S3DNA1E
Product Code CB148009300 CB148009301

Power

Supply

Rated Voltage

V~

220-240 220-240

Rated Frequency

Hz

50/60 50/60

Phases 1 1

Power Supply Mode Outdoor Outdoor

Cooling Capacity

W

2600 2600

Heating Capacity

W

3000 3000

Cooling Power Input

W

600 600

Heating Power Input

W

650 650

Cooling Current Input

A

2.7 2.7

Heating Current Input

A

3.2 3.2

Rated Input

W

1600 1600

Rated Current

A

/ /

Air Flow Volume(SH/H/MH/M/ML/L/SL)

m3/h

650/600/500/400/350

650/600/500/400/235.4

Dehumidifying Volume

L/h

0.8 0.8

EER

W/W

4.33

4.33

COP

W/W

4.62 4.62

SEER 8.5 8.5

HSPF / /

Application Area

m

2

12-18 12-18

Indoor Unit

Indoor Unit Model GWH09TB-S3DNA1E/I GWH09TB-S3DNA1E/I

Indoor Unit Product Code CB148N09300 CB148N09300
Fan Type Cross-ow Cross-ow
Fan Diameter Length(DXL)

mm

Φ98X662 Φ98×662

Cooling Speed(SH/H/MH/M/ML/L/SL)

r/min

1300/1050/1000/900/800/700/500 1300/1050/1000/900/800/700/500

Heating Speed(SH/H/MH/M/ML/L/SL)

r/min

1300/1150/1080/1030/980/900/850 1300/1150/1080/1030/980/900/850

Fan Motor Power Output

W

15 15

Fan Motor RLA

A

0.07 0.07

Fan Motor Capacitor

μF

/ /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter

mm

Φ7 Φ7

Evaporator Row-n Gap

mm

2-1.5 2-1.5

Evaporator Coil Length (LXDXW)

mm

662X25.4X305 662×25.4×305
Swing Motor Model MP24HA/MP24HB/MP24HC MP24HA/MP24HB/MP24HC
Swing Motor Power Output

W

2 2

Fuse Current

A

3.15 3.15

Sound Pressure Level
(SH/H/MH/M/ML/L/SL)

dB (A)

43/36/32/28/26 43/36/32/28/26

Sound Power Level
(SH/H/MH/M/ML/L/SL)

dB (A)

55/48/44/40 55/48/44/40

Dimension (WXHXD)

mm

866X292X209 866X292X209

Dimension of Carton Box (LXWXH)

mm

942X374X282 942X374X282

Dimension of Package (LXWXH)

mm

945X377X297 945X377X297

Net Weight

kg

11 11

Gross Weight

kg

13 13

8

Technical Information

Service Manual

The above data is subject to change without notice; please refer to the nameplate of the unit.

Outdoor Unit

Outdoor Unit Model GWH09TB-S3DNA1E/O

Outdoor Unit Product Code CB148W09300 CB148W09301

Compressor Manufacturer

ZHUHAILINDACOMPRESSOR
CO.,LTD DAIKIN DEVICE CO.,

LTD

ZHUHAILINDACOMPRESSOR
CO.,LTD DAIKIN DEVICE CO.,

LTD

Compressor Model QXA-B102zE190 QXA-B102zE190
Compressor Oil RB68EP RB68EP
Compressor Type Rotary Rotary
Compressor LRA. A 35 35
Compressor RLA A 4.8 4.8

Compressor Power Input W 1020 1020
Compressor Overload Protector / /
Throttling Method Electron expansion valve Electron expansion valve
Set Temperature Range °C 16~30 16~30

Cooling Operation Ambient

Temperature Range

°C -15~48 -15~48

Heating Operation Ambient

Temperature Range

°C -20~24 -20~24

Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube

Condenser Pipe Diameter mm Φ7.94 Φ7.94

Condenser Rows-n Gap mm 2.5-1.5 2.5-1.5

Condenser Coil Length (LXDXW) mm 733X57X550 733X57X550

Fan Motor Speed rpm 900/600 900/600

Fan Motor Power Output W 30 30

Fan Motor RLA A 0.15 0.15

Fan Motor Capacitor μF / /

Outdoor Unit Air Flow Volume m3/h 2400 2400

Fan Type Axial-ow Axial-ow

Fan Diameter mm Φ438 438

Defrosting Method Automatic Defrosting Automatic Defrosting

Climate Type T1 T1

Isolation I I

Moisture Protection IPX4 IPX4
Permissible Excessive Operating
Pressure for the Discharge Side

MPa 4.3 4.3

Permissible Excessive Operating
Pressure for the Suction Side

MPa 2.5 2.5

Sound Pressure Level (H/M/L) dB (A) 54/-/-/- 54/-/-/-

Sound Power Level (H/M/L) dB (A) 63/-/-/- 63/-/-/-

Dimension (WXHXD) mm 899X596X378

899X596X378

Dimension of Carton Box (LXWXH) mm 945X417X630 945X417X630

Dimension of Package (LXWXH) mm 948X420X645 948X420X645

Net Weight kg 40.5 40.5

Gross Weight kg 43.5 43.5

Refrigerant R410A R410A

Refrigerant Charge kg 1.2 1.2

Connection
Pipe

Connection Pipe Length m 5 5
Connection Pipe Gas Additional

Charge

g/m 20 20

Outer Diameter Liquid Pipe mm Φ6 Φ6
Outer Diameter Gas Pipe mm Φ9.52 Φ9.52

Max Distance Height m 10 10

Max Distance Length m 15 15

Note: The connection pipe applies metric diameter.

9

Service Manual

Technical Information

2.2 Operation Characteristic Curve

2.3 Capacity Variation Ratio According to Temperature

Cooling

0

2

4

6

8

10

15020304050 5060 70 80 90 150 20 30 40 60 70 80 90

Compressor speed (rps)

Current (A)

09K

12K

Heating

0

2

4

6

8

10

Compressor speed (rps)

Current (A)

09K

12K

Condition
Indoor:DB27°C WB19°C
Indoor air flow: Super High
Pipe length: 5m

Condition
Indoor:DB20°C WB15°C
Indoor air flow:Super High
Pipe length: 5m

0

20

33 35 37 39 41 43 45

40

60

80

100

120

140

160

180

200

Outdoor temp.(°C)

Capacity ratio(%)

09K
12K

Outdoor temp.(°C)

Outdoor temp.(°C)

09K
12K

Cooling Heating

-6

-4 -2

0

4

0

20

40

60

80

100

120

140

160

180

200

Capacity ratio(%)

2

68

10

0

20

33 35 37 39 41 43 45

40

60

80

100

120

140

160

180

200

Outdoor temp.(°C)

Capacity ratio(%)

09K
12K

Condition
Indoor:DB27°C WB19°C
Indoor air flow: Super High
Pipe length: 5m

09K
12K

Cooling Heating

-20

-18 -14

-10

-2 26

0

20

40

60

80

100

120

140

160

180

200

Capacity ratio(%)

-6

10

Condition
Indoor:DB27°C WB19°C
Indoor air flow: Super High
Pipe length: 5m

Condition
Indoor:DB20°C

WB15°C
Indoor air flow:Super High
Pipe length: 5m

Condition
Indoor:DB20°C

WB15°C
Indoor air flow:Super High
Pipe length: 5m

GWH09TB-S3DNA1D(CB148008401) GWH12TB-S3DNA1D(CB148008301)

GWH09TB-S3DNA1D(CB148008400) GWH09TB-S3DNA2D(CB411002902) GWH09TB-S3DNA3D(CB412003300)
GWH12TB-S3DNA1D(CB148008300) GWH12TB-S3DNA2D(CB411003002) GWH12TB-S3DNA3D(CB412003500)
GWH09TB-S3DNA1E(CB148009300 CB148009301)

10

Technical Information

Service Manual

2.5 Cooling and Heating Data Sheet in Rated Frequency

Rated cooling

condition(°C)

(DB/WB)

Model

Pressure of gas pipe

connecting indoor and

outdoor unit

Inlet and outlet pipe
temperature of heat

exchanger

Fan speed of

indoor unit

Fan speed of

outdoor unit

Compressor

revolution

(rps)

Indoor Outdoor P (MPa) T1 (°C) T2 (°C)

27/19 35/–

09K

0.9~1.2

12 to 14 41 to 43

Super High High

34

12K 10 to 12 43 to 45 55

Rated heating

condition(°C)

(DB/WB)

Model

Pressure of gas pipe

connecting indoor and

outdoor unit

Inlet and outlet pipe
temperature of heat

exchanger

Fan speed of

indoor unit

Fan speed of

outdoor unit

Compressor

revolution

(rps)

Indoor Outdoor P (MPa) T1 (°C) T2 (°C)

20/15 7/6

09K

2.0~2.6

33 to 35 3 to 5

Super High High

41

12K 42 to 44 3 to 5 55

Instruction:

T1: Inlet and outlet pipe temperature of evaporator
T2: Inlet and outlet pipe temperature of condenser
P: Pressure at the side of big valve
Connection pipe length: 5 m.

Cooling:

Heating:

2.4 Noise Curve

SL LMLMMH HSH

30

35

40

45

50

55

Compressor speed (rps)

Noise/dB(A)

09K

12K

0820 30 40 50 60 70 80

90

10

15

20

25

30

35

40

45

50

Indoor fan motor rotating speed (rps)

Noise/dB(A)

09K/12K

Indoor side noise Outdoor side noise

11

Service Manual

Technical Information

3. Outline Dimension Diagram

3.1 Indoor Unit

Unit:mm

541

866

292

209

162

160

10

80

35

163

Φ55

Φ55

12

Technical Information

Service Manual

3.2 Outdoor Unit

GWH09TB-S3DNA1D/O GWH12TB-S3DNA1D/O GWH09TB-S3DNA1E/O

899

818

303

378

596

596

Unit:mm

13

Service Manual

Technical Information

4. Refrigerant System Diagram

Connection pipe specication:
Liquid : 1/4" (6 mm)
Gas : 3/8" (9.52mm) (09K)
Gas : 1/2" (12mm) (12K)

Indoor unit

Outdoor unit

COOLING

HEATING

4-Way valve

Discharge

Suction

Heat
exchanger
(evaporator)

Heat
exchanger
(condenser)

Valve

Valve

Liquid pipe
side

Gas pipe
side

Strainer

Electron
expansion
valve

Strainer

Accumlator

Compressor

Capillary

Indoor unit

Outdoor unit

COOLING

HEATING

4-Way valve

Discharge

Suction

Heat
exchanger
(evaporator)

Heat
exchanger
(condenser)

Valve

Valve

Liquid pipe
side

Gas pipe
side

Strainer

Electron
expansion
valve

Strainer

Accumlator

Compressor

09K

12K

14

Technical Information

Service Manual

5. Electrical Part

5.1 Wiring Diagram

● Indoor Unit

●Instruction

Symbol Symbol Color Symbol Symbol Color Symbol Name

WH White GN Green CAP Jumper cap

YE Yellow BN Brown COMP Compressor

RD Red BU Blue Grounding wire

YEGN Yellow/Green BK Black / /

VT Violet OG Orange / /

Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.

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15

Service Manual

Technical Information

● Outdoor Unit

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16

Technical Information

Service Manual

(3) GWH12TB-S3DNA1D/O(CB148W08300)

(4) GWH12TB-S3DNA1D/O(CB148W08301)

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17

Service Manual

Technical Information

The above data is subject to change without notice. Please refer to the nameplate of the unit.

(5) GWH09TB-S3DNA1E/O (CB148W09300)

(6) GWH09TB-S3DNA1E/O (CB148W09301)

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18

Technical Information

Service Manual

5.2 PCB Printed Diagram

● Top view

● Bottom view

Indoor Unit

1 Neutral wire

2 DC fan

3 Interface of inching switch

4 Interface of electrostatuc dedusting

5 Auto button

6 Small up&down swing

7 Left&right swing

8 Big up&down swing

9 Display interface

10 Jumper interface

11 Ambient temperature sensor

12 Tube temperature sensor

13

Communication interface between
indoor unit and outdoor unit

14 Fuse

15 Interface of live wire for indoor unit

16

Power suppy interface of outdoor
unit

17 Healthy neutral wire

18 Healthy live wire

1234567

8

9

10

1112

13

14

15

17

18

19

Service Manual

Technical Information

1

23 4567 8

9

10

11

12

13141516

● Top view

● Bottom view

Outdoor Unit

1

Terminal of reactor
wire

5

Neutral wire interface for electric
heating of compressor

9 Earthing wire terminal 13

High-pressure switch

terminal

2

Terminal of electronic

expansion valve

6

Neutral wire interface of electric
heating belt for chassis

10 Neutral wire terminal 14

Terminal of temperature

sensor wire

3 Fan terminal 7

Neutral wire terminal of 4-way
valve

11 Live wire terminal 15

Terminal of overload

wire

4

Terminal of live wire
for 4-way valve

8

Live wire terminal of electric
heating

12

Communication wire terminal
for indoor unit and outdoor unit

16

Terminal of compressor
wire

20

Technical Information

Service Manual

6. Function and Control

6.1 Remote Controller Introduction

1

2

3

4

5

6

7

8

9

10

11

12

button

button

X-FAN button

QUIET button

SLEEP button

TEMP button

I FEEL button

13

14

15

16

TURBO button

LIGHT button

button

TIMER ON/
TIMER OFF button

CLOCK button

1

2

3

4

ON/OFF button

FAN button

+/- button

MODE button

ON/OFF button

FAN button

+/- button

MODE button

3

4

2

1

(before opening cover (after opening cover

/

1

15

5

2

6

3

12

16

4

11

8

9

13

7

10

14

1

2

3

4

5

6

7

8

9

10

11

12

button

button

X-FAN button

QUIET button

SLEEP button

TEMP button

I FEEL button

13

14

15

16

TURBO button

LIGHT button

button

TIMER ON/
TIMER OFF button

CLOCK button

1

2

3

4

ON/OFF button

FAN button

+/- button

MODE button

ON/OFF button

FAN button

+/- button

MODE button

3

4

2

1

(before opening cover (after opening cover

/

Send signal

Turbo mode

8ć heating function
Set temperature

Set time

X-FAN function

TIMER ON /TIMER OFF

Child lock
Up & down swing
Left & right swing

Set fan speed

Light

Temp. display type

: Set temp.

: Outdoor ambient temp.

: Indoor ambient temp.

Sleep mode

Clock

Heat mode

Fan mode

Dry mode

Cool mode

Auto mode

Operation mode

I feel

Healthy mode
Scavenging functions

Quiet

1

15

5

2

6

3

12

16

4

11

8

9

13

7

10

14

This is a general remote controller. Some
models have this function while some do
not. Please refer to the actual models.

Buttons on Remote Controller

Introduction for Icons on Display Screen

Introduction for Buttons on Remote Controller

● After putting through the power, the air conditioner will give out a sound.Operation indictor " " is ON (red indicator). After that, you can
operate the air conditioner by using remote controller.

● Under on status, pressing the button on the remote controller, the signal icon " " on the display of remote controller will blink once and
the air conditioner will give out a “de” sound, which means the signal has been sent to the air conditioner.

● Under off status, set temperature and clock icon will be displayed on the display of remote controller (If timer on, timer off and light
functions are set, the corresponding icons will be displayed on the display of remote controller at the same time); Under on status, the
display will show the corresponding set function icons.

1. ON/OFF button

Press this button, the unit will be turned on, press it once more, the unit will be turned off. Sleep function will be canceled, while unit off.

Note:

● This is a general use remote controller, it could be used for the air conditioners with multifunction; For some function, which the model
dont have, if press the corresponding button on the remote controller that the unit will keep the original running status.

21

Service Manual

Technical Information

2. FAN button

Press this button, Auto, Low, Medium-low, Medium, Medium-high, High speed can be circularly selected. After powered on, Auto fan speed is
default. Under DRY mode, Low fan speed only can be set up.

3. MODE button

Press this button, Auto, Cool, Dry, Fan, Heat mode can be selected circularly. Auto mode is default while power on. Under Auto mode, the
temperature will not be displayed;Under Heat mode, the initial value is 28°C( 82°F);Under other modes, the initial value is 25°C(77°F).

4. +/- button

● Presetting temperature can be increased.
Press this button,the temperature can be set up, continuously press this button and hold for two seconds, the relative contents can quickly
change,until unhold this button and send the order that the °C(°F) signal will be displayed all the time.The temperature adjustment is unavilable
under the Auto mode, but the order can be sent by if pressing this button.Temperature of Celsius degree setting:16-30;for Fahrenheit degree

setting:61-86.

● Presetting temperature can be decreased.
Press this button, the temperature can be set up, continuously press this button and hold for two seconds, the relative contents can quickly
change,until unhold this button and send the order that the°C(°F) signal will be displayed all the time.The temperature adjustment is
unavailable under the Auto mode,but the order can be sent by if pressing this button.

5. TURBO button

Under Cool or Heat mode,press this button can turn on or turn off the Turbo function.After the Turbo function turned on, the signal of Turbo will
display. The signal will be automatically cancelled if changing the mode or fan speed.

6. button

Press this button to set left & right swing angle cycling as below:

7. button

Press this button to set swing angle,which circularly changes as below:

This remote controller is universal. If it receives threes kinds of following status,the swing angle will remain origial.

If guide louver is stopped when it is swinging up and down,it will remain its present position.
indicates guide louver swings back and forth in the ve places,as shown in the gure.

8. CLOCK button

Press this button, the clock can be set up,signal blink and display.Within 5 seconds, the value can be adjusted by pressing + or - button,
if continuously press this button for 2 seconds above,in every 0.5 seconds, the value on ten place of Minute will be increased 1.During
blinking,repress the Clock button or Conrm button,signal will be constantly displayed and it denotes the setting succeeded. After powered
on, 12:00 is defaulted to display and signal will be displayed. If there is signal be displayed that denotes the current time value is Clock
value, otherwise is Timer value.

9. TIMER ON/TIMER OFF button

● Timer On setting: Signal “ON”will blink and display,signal will conceal,the numerical section will become the timer on setting status.
During 5 seconds blink,by pressing + or - button to adjust the time value of numerical section,every press of that button,the value will be
increased or decreased 1 minute.Hold pressing + or - button,2 seconds later,it quickly change,the way of change is: During the initial 2.5
seconds,ten numbers change in the one place of minute,then the one place is constant,ten numbers change in the ten splace of minute at 2.5
seconds speed and carry. During 5s blink,press the Timer button,the timer setting succeeds.The Timer On has been set up,repress the timer
button,theTimer On will be canceled. Before setting theTimer,please adjust the Clock to the current actual time.

● One press this key to enter into TIMER OFF setup, in which case the TIMER OFF icon will blink. The method of setting is the sameas for

TIMER ON.

Note: Its Low fan speed

under Dry mode.

(only for cooling and heating unit.
As for cooling only unit, it wont
have any action when it receives
the signal of heating operation.)

Medium fanLow fan High fan

Medium-low fan Medium-high fan

ATUO

Medium fanLow fan High fan

Medium-low fan Medium-high fan

ATUO

AUTO COOL DRY FAN HEAT

OFF

OFF

OFF

OFF

F

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

22

Technical Information

Service Manual

10. TEMP button

Press this button, you can see indoor set temperature, indoor ambient temperature or outdoor ambient temperature on indoor units

display. The setting on remote controller is selected circularly as below:

no display

When selecting " " with remote controller or no display, temperature indicator on indoor unit displays set temperature; When selecting

" " with remote controller,temperature indicator on indoor unit displays indoor ambient temperature; When selecting " " with remote

controller, temperature indicator on indoor unit displays outdoor ambient temperature. 3s later it will return to the setting temprature or it

depends on the other received signal within 3s.

Attention: When displaying the outdoor ambient, the displaying range is 32-99°F and 0-60°C.When it goes beyond the range, it keeps the

threshold data (the smallest—0°C or 32°F and the largest 99°F or 60°C).

Warm tips: When operating buttons on the cover please make sure the cover is closed completely.

11.

/

button(This function is only available for some models)

Press this button to achieve the on and off of healthy and scavenging functions in operation status.Press this button for the rst

time to start scavenging function;LCD displays“

”.Press the button for the second time to start healthy and scavenging functions

simultaneously;LCD displays“

”and “

” .Press this button for the third time to quit healthy and scavenging functions simultaneously.

Press the button for the fourth time to start healthy function; LCD display“

” .Press this button again to repeat the operation above.

12. I FEEL button

Press this button once, to turn on the I FEEL function, then the gure of "I FEEL" will be displayed, after every press of other function
button, every 200ms to send I FEEL once, after this function started,the remote control will send temperature to the main un it in every 10
minutes.When repress this button, this function will be turned off.

13. LIGHT button

Press this button at unit On or Off status,Light On and Light Off can be set up.After powered on, Light On is defaulted.

14. X-FAN button

Pressing X-FAN button in COOL or DRY mode,the icon

is displayed and the indoor fan will continue operation for 2 minutes in order

to dry the indoor unit even though you have turned off the unit.After energization, X-FAN OFF is defaulted.X-FAN is not available in
AUTO,FAN or HEAT mode.

15. QUIET button

Press this button,the Quiet status is under the Auto Quiet mode (display"

" and “Auto”signal ) and Quiet mode(display "

" singal) and

Quiet OFF(there is no signal of "

" displayed),after powered on,the Quiet OFF is defaulted. Under the Quiet mode (Display "

"signal),

the fan speed is not available.

16. SLEEP button

●Press this button, can select Sleep 1 ( ), Sleep 2 ( ),Sleep 3 (

) and cancel the Sleep, circulate between these, after

electried, Sleep Cancel is defaulted.

●Sleep 1 is Sleep mode 1, in Cool, Dehumidify modes: sleep status after run for one hour, the main unit setting temperature will increase
1°C(1ºF~2ºF), 2 hours,setting temperature increased 2°C(3ºF~4ºF), the unit will run at this setting temperature; In Heat mode: sleep status
after run for one hour, the setting temperature will decrease 1°C(1ºF~2ºF), 2 hours, setting temperature will decrease 2°C(3ºF~4ºF), then
the unit will run at this setting temperature.

●Sleep 2 is sleep mode 2, that is air conditioner will run according to the presetting a group of sleep temperature curve.

In Cool mode:

(1) When setting the initial temperature 16~23°C(61ºF~74ºF), after turned on Sleep function, the temperature will be increased 1°C(1ºF~2ºF)
in every hour,after 3°C(5ºF~6ºF) the temperature will be maintained, after 7hours,the temperature will be decreased 1°C(1ºF~2ºF), after
that the unit will keep on running under this temperature;
(2) When setting the initial temperature 24~27°C(75ºF~81ºF), after turned on Sleep function, the temperature will be increased 1°C(1ºF~2ºF)
in every hour,after 2°C(3ºF~4ºF) the temperature will be maintained, after 7hours,the temperature will be decreased 1°C(1ºF~2ºF) , after
that the unit will keep on running under this temperature;
(3) When setting the initial temperature 28~29°C(82ºF~85ºF), after turned on Sleep function, the temperature will be increased 1°C(1ºF~2ºF)
in every hour, after 1°C(1ºF~2ºF) the temperature will be maintained, after 7hours,the temperature will be decreased 1°C(1ºF~2ºF) , after
that the unit will keep on running under this temperature;
(4) When setting the initial temperature 30°C(86ºF), under this temperature setting, after 7hours, the temperature will be decreased
1°C(1ºF~2ºF), after that the unit will keep on running under this temperature;

In Heat mode:

(1) Under the initial presetting temperature 16°C(61ºF), it will run under this setting temperature all along.
(2) Under the initial presetting temperature17~20°C(62ºF~68ºF), after Sleep function started up, the temperature will decrease 1°C(1ºF~2ºF)
in every hour, after 1°C(1ºF~2ºF) decreased, this temperature will be maintained.
(3) Under the initial presetting temperature 21~27°C(69ºF~81ºF), after Sleep function started up, the temperature will decrease
1°C(1ºF~2ºF) in every hour,after 2°C(3ºF~4ºF) decreased, this temperature will be maintained.
(4) Under the initial presetting temperature 28~30°C(82ºF~86ºF), after Sleep function started up, the temperature will decrease
1°C(1ºF~2ºF) in every hour, after 3°C(5ºF~6ºF) decreased, this temperature will be maintained.

23

Service Manual

Technical Information

●Sleep 3- the sleep curve setting under Sleep mode by DIY:
(1) Under Sleep 3 mode, press "Turbo" button for a long time, remote control enters into user individuation sleep setting status, at this
time, the time of remote control will display "1hour ", the setting temperature "88" will display the corresponding temperature of last setting
sleep curve and blink (The rst entering will display according to the initial curve setting value of original factory);
(2) Adjust "+" and "-" button, could change the corresponding setting temperature, after adjusted, press "Trubo "button for conrmation;
(3) At this time, 1hour will be automatically increased at the timer postion on the remote control, (that are "2hours" or "3hours" or "8hours "),
the place of setting temperature "88" will display the corresponding temperature of last setting sleep curve and blink;
(4) Repeat the above step (2)~(3) operation, until 8hours temperature setting nished, sleep curve setting nished, at this time, the remote
control will resume the original timer display;temperature display will resume to original setting temperature.

●Sleep3- the sleep curve setting under Sleep mode by DIY could be inquired:
The user could accord to sleep curve setting method to inquire the presetting sleep curve, enter into user individuation sleep setting
status, but do not change the temperature, press "Turbo" button directly for conrmation.
Note: In the above presetting or enquiry procedure, if continuously within10s, there is no button pressed, the sleep curve setting status will
be automatically quit and resume to display the original displaying. In the presetting or enquiry procedure, press "ON/OFF" button, "Mode"
button, "Timer" button or "Sleep" button, the sleep curve setting or enquiry status will quit similarly.

17. About X-FAN function

This function indicates that moisture on evaporator of indoor unit will be blowed after the unit is stopped to avoid mould.
(1)Having set X-FAN function on: After turning off the unit by pressing ON/OFF button indoor fan will continue running for about 2 min. at
low speed. In this period, press X-FAN button to stop indoor fan directly.
(2)Having set X-FAN function off: After turning off the unit by pressing ON/OFF button, the complete unit will be off directly.

18. About AUTO RUN

When AUTO RUN mode is selected, the setting temperature will not be displayed on the LCD, the unit will be in accordance with the room
temp. automatically to select the suitable running method and to make ambient comfortable.

19. About turbo function

If start this function, the unit will run at super-high fan speed to cool or heat quickly so that the ambient temp. approachs the preset temp.

as soon as possible.

20. About lock

Press + and - buttons simultaneously to lock or unlock the keyboard. If the remote controlleris locked, the icon

will be displayed on it, in

which case, press any button, the mark will icker for three times. If the keyboard is unlocked, the mark will disappear.

21. About swing up and down

(1)Press swing up and down button continuously more than 2s,the main unit will swing back and forth from up to down, and then loosen
the button, the unit will stop swinging and present position of guide louver will be kept immediately.

(2)Under swing up and down mode, when the status is switched from off to

OFF

, if press this button again 2s later,

OFF

status will switch

to off status directly; if press this button again within 2s,the change of swing status will also depend on the circulation sequence stated
above.

22. About swing left and right

(1)Press swing left and right button continuously more than 2s,the main unit will swing back and forth from left to right, and then loosen the
button, the unit will stop swinging and present position of guide louver will be kept immediately.
(2)Under swing left and right mode, when the status is switched from off to

, if press this button again 2s later,

status will switch
to off status directly; if press this button again within 2s,the change of swing status will also depend on the circulation sequence stated
above.

23. About switch between Fahrenheit and Centigrade

Under status of unit off, press MODE and - buttons simultaneously to switch °C and °F.

24. Combination of " TEMP" and "CLOCK" buttons : About Energy-saving Function

Press “TEMP” and “CLOCK” simultaneously in COOL mode to start energy-saving function.Nixie tube on the remote controller displays “SE”.
Repeat the operation to quit the function.

25. Combination of " TEMP" and "CLOCK" buttons : About 8°C(46ºF) Heating Function

Press “TEMP” and “CLOCK” simultaneously in HEAT mode to start 8°C(46ºF) Heating Function.Nixie tube on the remote controller

displays"

"and a selected temperature of “8°C” (46°F if Fahrenheit is adopted). Repeat the operation to quit the function.

26. About Auto Quiet function

When auto quiet function is selected:
(1)Under cooling mode: indoor fan operates at notch 4 speed. 10 minutes later or when indoor ambient temperature≤28°C(82ºF), indoor
fan will operate at notch 2 speed or quiet mode according to the comparison between indoor ambinet temperature and set temperature.
(2)Under heating mode: indoor fan operates at notch 3 speed or quiet mode according to the comparison between indoor ambient
temperature and set temperature.
(3)Under dry, fan mode: indoor fan operates at quiet mode.
(4)Under auto mode: the indoor fan operates at the auto quiet mode according to actual cooling, heating or fan mode.

27. About Sleep function

Under the Fan and Auto mode, the Sleep function cannot be set up, under Dehumidify mode, only Sleep 1 can be selected.Select and
enter into any kind of Sleep mode, the Quiet function will be attached and stared, different Quiet status could be optional and turned off.

24

Technical Information

Service Manual

1

4

3 1

2

4

2

3

5

battery

Cover of battery box

remove

reinstall

1

4

3 1

2

4

2

3

5

battery

reinstall

1

4

3 1

2

4

2

3

5

Operation Guide

Replacement of Batteries in Remote Controller

1. General operation

(1)After powered on, press ON/OFF button, the unit will start to run. (Note: When it is powered on, the
guide louver of main unit will close automatically.)
(2)Press MODE button, select desired running mode.
(3)Pressing + or - button, to set the desired temperature (It is unnecessary to set the temp. at AUTO

mode.)

(4)Pressing FAN button, set fan speed, can select AUTO FAN, LOW, MEDIUM-LOW, MEDIUM, MEDIUM-

HIGH and HIGH.

(5)Pressing and button, to select the swing.

2. Optional operation

(1)Press SLEEP button, to set sleep.
(2)Press TIMER ON and TIMER OFF button, can set the scheduled timer on or timer off.
(3)Press LIGHT button, to control the on and off of the displaying part of the unit (This function may be not
available for some units).
(4)Press TURBO button, can realize the ON and OFF of TURBO function.

1. Press the back side of remote controller marked with " ",as shown in the g,and then push out the
cover of battery box along the arrow direction.

2. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of "+" polar and "-" polar are

correct.

3. Reinstall the cover of battery box.

Note:

● During operation, point the remote control signal sender at the receiving window on indoor unit.

● The distance between signal sender and receiving window should be no more than 8m, and there
should be no obstacles between them.

● Signal may be interfered easily in the room where there is uorescent lamp or wireless telephone;
remote controller should be close to indoor unit during operation.

● Replace new batteries of the same model when replacement is required.

● When you dont use remote controller for a long time, please take out the batteries.

● If the display on remote controller is fuzzy or theres no display, please replace batteries.

OFF

25

Service Manual

Technical Information

6.2 Brief Description of Modes and Functions

●

Indoor Unit

●

Indoor Unit

1Temperature Parameters

ƹ

Indoor preset temperature (Tpreset)

ƹ

Indoor ambient temperature (Tamb.)

2 Basic function

s (The temperature in this manual is expressed by Centigrade. If Fahrenheit is used, the switchover between them is

Tf=TcX1.8+32.)
Once the compressor is energized, there should be a minimum in

terval of 3 minutes between two start-ups. But if the unit is

de-energized and then energized, the compressor can restart

within 3 minutes.

2.1 Cooling mode

2.1.1 Cooling conditions and process
When

Tamb. ≥Tpreset, the unit starts cooling operation. In this case, the compressor and the outdoor fan operate and the indoor fan

operates at set speed.
When Tamb. ≤Tpreset-3

ć, the compressor and the outdoor fan stop while the indoor fan runs at set speed.

When Tpreset-

3ć˘Tamb. ˘Tpreset, the unit will maintain its previous running status.

In cooling mode, temperature setting range is 1

630ć; the indoor unit displays operation icon, cooling icon and set temperature.

2.1.2

When outdoor unit has malfunction or stops for protection, indoor unit will keep previous operation status and display malfunction

code.

2.1.3 The protection status is as the same as the cooling mode.

2.2 Dr

y Mode

2.2.1 Dr

y Conditions and Process

2.3 Heating mode (not available for cooling only

type)

2.3.1 Heating conditions and process
When

Tamb. ≤Tpreset+2ć, the unit starts heating operation. In this case, compressor and outdoor fan operate simultaneously; the

indoor fan operates at cold-air prevention mode.
When Tamb≥Tpreset+5

ć, the compressor and outdoor fan stop operation; the indoor fan blows residual heat.

When T

preset

+2ć˘T

amb.

˘ T

preset

+5ć, the unit will maintain its previous running status.

Under this mode, temperature setting range is 1630ć; the indoor unit displays operation icon, heating icon and set temperature.

Tpreset

Tpreset –3 ˚C

Compressor

Outdoor fan

Indoor fan

Run

Tamb.

Stop

Stop cooling

Start cooling

Previous running status

≥ 6 min. ≥ 3 min. ≥ 6 min.

Set fan speed

When Tamb.>Tpreset, the unit operates in cooling mode. Meanwhile, compressor and outdoor fan operate, and indoor fan operates a

t

set fan speed (low fan speed, quiet fan speed or auto quiet fan speed).When Tpreset-2

℃＜Tamb. ≤Tpreset, the unit keeps previous

operation status.When Tamb. ≤Tpreset-2

℃, compressor, outdoor fan and indoor fan operate at set fan speed (low fan speed, quiet fan

speed or auto quiet fan speed).Under this mode, the temperature setting range is 1

6～30℃

. Display displays operation icon, drying icon

and set temperature.

Tpreset

Tpreset –2˚C

Compressor

Outdoor fan

Indoor fan

Run

Tamb.

Stop

Stop cooling

Start cooling

Previous running status

≥ 6 min. ≥ 3 min. ≥ 6 min.

Set fan speed

26

Technical Information

Service Manual

2.3.2 Defrosting and Oil Return
When receiving the signal of defrosting and oil return, the horizontal louver(big one)

will rotate to the position where the angle is

minimum and the other horizontal louver(small one) w

ill close. In 10 seconds later, indoor fan will stop operation. During defrosting, oi

l

return and 5 minutes after quit, all indoor pipe temperature sensors

will not be detected. When receiving oil return signal or defrosting

signal sent by outdoor unit, “dual 8” nixie tube

will display “H1”. (H1 is not malfunction code.)

2.3.3 Bl

ow residual heat

In heating mode,

when temperature reaches the set temperature, the compressor and outdoor fan will stop.

The horizontal louver (big one)

will rotate to the default position for cooling and the other one (small one) will close. Indoor unit will

operate at set speed for 60s and then stop operation.
When the unit is in heating mode or auto heating mode, and also

the compressor and indoor fan are operating, if turning off the unit,

compressor and outdoor fan will stop. Horizontal louver (big one)

will rotate to the position where gentle wind is blown out (default

position

for cooling) and the other horizontal louver (small one) will close. Indoor unit will operate at low speed for 10 seconds and

then

the unit

will be turned off.

2.4 Fan Mode
In this mode, indoor fan operates at set speed

while compressor and outdoor fan stop operation. The set temperature range is

16~3

0ć. Operation icon and set temperature are displayed.

2.5 Auto Mode
In this mode, operation mode (Cool, Heat, Fan)

will be automatically selected according to change of ambient temperature. Operation

icon, actual operation icon and set temperature

will be displayed. There is 30s delay for protection when changing mode. The

protection function is as the same as that under each mode.

2.5.1 When Tamb.≥26

ćˈthe unit will operate at cooling mode, the default set temperature is 25ć.

2.5.2

When Tamb. ≤21ćˈthe unit will operate at heating mode, the default set temperature is 20ć˄if the cooling only unit operates at

fan mode, the default set temperature is 25

ć.˅;

2.5.3 When 22

ć ≤Tamb. ≤25ćˈand the unit is turned on for the first time, if it changes to auto mode from other mode, the previous

operation mode

will be maintained; If it changes to auto mode from dry mode, the unit will operate at fan mode.

2.5.4 When the unit operates at auto mode, the frequency of compressor is as the same as that under cooling mode,

while it is as the

same as that under heating mode.
Protection function
A.

Under cooling mode, the protection function is as the same as that under cooling mode.

B.

Under heating mode, the protection function is as the same as that under heating mode.

2.6. “8

ć” Heating

Under heating mode, press buttons “Temp” and “Clock” simultaneously

, the 8ć heating function will be activated and “cold air

prevention”

will be shielded.

2.6.1 8

ć heating can’t co-exist with sleep function. If 8ćheating function is set, it can be cancelled by pressing sleep button, In that

case, the set temperature

will be that before entering 8 ć heating; If sleep function is set, press buttons “Temp” and “Clock”

simultaneously to activate

8ć function and cancel sleep function at the same time.

2.6.2 Set temperature is 8

ćˈand it is displayed on the indoor display panel.

2.6.3 In this mode, TURBO can’t be se

t and fan speed can’t be adjusted.

2.6.4 In this mode,

when compressor operates, fan speed will be adjusted as follows; when compressor stops operation, indoor unit

wi

ll operate at blowing residual heat.

When Tindoor amb. ≤9ć, indoor unit will operate at high speed;

Heating mode Tpreset
=20ć (if cooling-only
unit, it is Fan mode,
T

p

reset=25ć˅

Keep current

operation mode

Cooling mode,

Tpreset=25ć

Tpreset

Tpreset +2 ˚C

Tpreset +5 ˚C

Tamb.

Compressor

Outdoor unit

Indoor unit

4-way valve

6 min.3 min.

2 min.

2 min.

Blow residual
heat

6 min.

Start heating

Previous running status

Start heating

Blow residual heat

Stop

Run

21℃ 26℃

27

Service Manual

Technical Information

When 9ć ˘Tindoor amb.˘11ć, indoor unit will operate at medium speed;
When Tindoor amb.≥1

1ćˈindoor fan will operate at low speed;

When changing among lo

w high, medium, and low speeds, the minimum operation time is 210 seconds.

2.6.5 If the unit has memory function,

8ćheating function will be memorized.

2.7 Energy-saving Function

2.7.1 In cooling mode,

when receiving command of energy-saving sent by remote control, the controller enters energy-saving mode; If

the unit is under energy-saving mode already,

such command will not be executed.

2.7.2 When remote control is set to display set temperature, “dual 8”nixie tube displays “SE”.

2.7.3 In this mode,

when compressor operates, fan speed will be adjusted according to auto fan mode under energy-saving operation;

wh

en compressor stops operation, indoor fan will operate at low speed.

a. When Tamb.≥31

ć, indoor fan will operate at super high speed;

b. When 31

ć˚Tamb.≥Tpreset + 3ć, indoor fan will operate at high speed;

c. When Tpreset+1

ć˘Tamb.˘Tpreset + 3ćˈindoor fan will operate at medium speed;

d. When Tamb.≤Tpreset +

1ćˈ indoor fan will operate at low speed;

Note:

The switchover among superhigh speed, high speed, medium speed and low speed requires minimum 210seconds of operation.

2.7.4 In this mode, set temperature

will be automatically adjusted according to actual operation conditions.

3 Other Control

3.1 Timer function
General timer and clock timer functions are compatible by equipping remote controller

with different functions.

3.1.1 General Timer
Ti

mer ON can be set at unit OFF. If selected ON time is reached, the unit will start to operate according to previous setting status. Time

setting range is 0.5-24hr in 30-minute increments.
Timer

OFF can be set at unit ON. If selected OFF time is reached, the unit will stop operation. Time setting range is 0.5-24hr in

30-minute increments.

3.1.2 Clock Timer
Timer ON
If

timer ON is set during operation of the unit, the unit will continue to operate. If timer ON is set at unit OFF, upon ON time reaches the

unit

will start to operate according to previous setting status.

Ti

mer OFF

If timer OFF is set at unit OFF, the sy

stem will keep standby status. If timer OFF is set at unit ON, upon OFF time reaches the unit will

stop operation.

Tamb.

Fan speed

Low

Med.

High

Tamb.

Tpreset + 3 ć

31℃

11℃

9℃

Tp ć

Fan speed

Super high

High

Med.

Low

reset + 1