Gree GWH09MB-K3DNA4G User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
GWH09MB-K3DNA4G
GWH09MB-K3DNC9G
GWH09MB-K3DNC1G
GWH09MB-K3DNC2G
GWH09MB-K3DNC5G
GWH09MB-K3DNB7G
GWH09MB-K3DNA5G
GWH09MB-K3DNC2G
GWH09MB-K3DNE1G
GWH09MB-K3DNA3G
GWH09MB-K3DND3G
GWH09MB-K3DNA8G
Models: GWH12MB-K3DNB7G
GWH12MB-K3DNC9G
GWH12MB-K3DNA4G
GWH12MB-K3DNC1G
GWH12MB-K3DNC2G
GWH12MB-K3DNC5G
GWH12MB-K3DNA5J
GWH12MB-K3DNC2G
GWH12MB-K3DNA2I
GWH12MB-K3DNE1G
GWH12MB-K3DNA3I
GWH12MB-K3DNA8G
GWH12MB-K3DND3G
(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 ......................................................................................11
2.3 Capacity Variation Ratio According to Temperature ....................................................... 11
2.4 Cooling and Heating Data Sheet in Rated Frequency ...................................................12
2.5 Noise Curve....................................................................................................................12
3. Outline Dimension Diagram......................................................................13
3.1 Indoor Unit......................................................................................................................13
3.2 Outoor Unit .....................................................................................................................13
4. Refrigerant System Diagram....................................................................14
5. Electrical Part.........................................................................................................15
5.1 Wiring Diagram...............................................................................................................15
5.2 PCB Printed Diagram .....................................................................................................17
6. Function and Control......................................................................................19
6.1 Remote Controller Introduction .....................................................................................19
6.2 Brief Description of Modes and Functions......................................................................23
Part Ⅱ: Installation and Maintenance .................................................29
7. Notes for Installation and Maintenance..........................................29
8. Installation................................................................................................................32
8.1 Installation Dimension Diagram......................................................................................32
8.2 Installation Parts-checking ............................................................................................34
8.3 Selection of Installation Location....................................................................................34
8.4 Requirement For Electric Connection ...........................................................................34
8.5 Installation of Indoor Unit................................................................................................34
8.6 Installation of Outdoor Unit.............................................................................................37
8.7 Vacuum Pumping and Leak Detection ...........................................................................38
8.8 Check after Installation and Test Operation ...................................................................38

Service Manual
Table of Contents Table of Contents
9. Maintenance............................................................................................................39
9.1 Error Code List ...............................................................................................................39
9.2 Procedure of Troubleshooting ........................................................................................46
9.3 Troubleshooting for Normal Malfunction.........................................................................60
10. Exploded View and Parts List ..............................................................62
10.1 Indoor Unit....................................................................................................................62
10.2 Outdoor Unit .................................................................................................................73
11. Removal Procedure.......................................................................................76
11.1 Removal Procedure of Indoor Unit ...............................................................................76
11.2 Removal Procedure of Outdoor Unit ............................................................................81
Appendix:........................................................................................................................86
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................86
Appendix 2: Conguration of Connection Pipe.....................................................................86
Appendix 3: Pipe Expanding Method ...................................................................................87
Appendix 4: List of Resistance for Temperature Sensor ......................................................88

1
Technical Information
Service Manual
1. Summary
Part Ⅰ: Technical Information
Indoor Unit
GWH09MB-K3DNA4G/I
GWH12MB-K3DNA4G/I
GWH09MB-K3DNC2G/I
GWH12MB-K3DNC2G/I
GWH09MB-K3DNB7G/I
GWH12MB-K3DNB7G/I
GWH09MB-K3DNA5G/I
GWH12MB-K3DNA5J/I
GWH09MB-K3DNE1G/I
GWH12MB-K3DNE1G/I
GWH12MB-K3DNA2I/I
GWH09MB-K3DNA3G/I
GWH12MB-K3DNA3I/I
GWH09MB-K3DNC9G/I
GWH12MB-K3DNC9G/I
GWH09MB-K3DNC5G/I
GWH12MB-K3DNC5G/I
GWH09MB-K3DNC1G/I
GWH12MB-K3DNC1G/I

2Technical Information
Service Manual
GWH09MB-K3DNE3G/O
GWH12MB-K3DNE3G/O
Outdoor Unit
Remote Controller
YT1F(MOTO)
FAN
MODE
IFEEL
CLOCK TIMER
ON
X-FAN TEMPTIMER
OFF
TURBO SLEEP LIGHT
No. Unit model Unit code Indoor unit model Indoor unit code Model of Outdoor Unit Outdoor unit
model
1 GWH09MB-K3DNA4G CB161007800 GWH09MB-K3DNA4G/I CB161N07800
GWH09MB-K3DNE3G/O
(LCLH) CB404W03600
2 GWH09MB-K3DNC1G CB139006000 GWH09MB-K3DNC1G/I CB139N06000
3 GWH09MB-K3DNC2G CB180001602 GWH09MB-K3DNC2G/I CB180N01602
4 GWH09MB-K3DNC5G CB179004000 GWH09MB-K3DNC5G/I CB179N04000
5 GWH09MB-K3DNA5G CB162009902 GWH09MB-K3DNA5G/I CB162N09901
6 GWH09MB-K3DNA3G CB171011403 GWH09MB-K3DNA3G/I CB171N11403
7 GWH09MB-K3DND3G CB405004400 GWH09MB-K3DND3G/I CB405N04400
8 GWH09MB-K3DNC5G CB179004002 GWH09MB-K3DNC5G/I CB179N04002
9 GWH09MB-K3DNC2G CB180001601 GWH09MB-K3DNC2G/I CB180N01600
GWH09MB-K3DNE3G/O CB404W03601
10 GWH09MB-K3DNC5G CB179004001 GWH09MB-K3DNC5G/I CB179N04000
11 GWH09MB-K3DNB7G CB164003001 GWH09MB-K3DNB7G/I CB164N03000
12 GWH09MB-K3DNC9G CB145006001 GWH09MB-K3DNC9G/I CB145N06000
13 GWH09MB-K3DNE1G CB143002101 GWH09MB-K3DNE1G/I CB143N02100
14 GWH09MB-K3DNC1G CB139006001 GWH09MB-K3DNC1G/I CB139N06001
15 GWH09MB-K3DNA8G CB173006701 GWH09MB-K3DNA8G/I CB173N06700
16 GWH12MB-K3DNA4G CB161007900 GWH12MB-K3DNA4G/I CB161N07900
GWH12MB-K3DNE3G/O
(LCLH) CB404W03500
17 GWH12MB-K3DNC1G CB139006100 GWH12MB-K3DNC1G/I CB139N06100
18 GWH12MB-K3DNA5J CB162010002 GWH12MB-K3DNA5J/I CB162N10002
19 GWH12MB-K3DNA2I CB181007700 GWH12MB-K3DNA2I/I CB181N07700
20 GWH12MB-K3DNC2G CB180001702 GWH12MB-K3DNC2G/I CB180N01702
21 GWH12MB-K3DNA3I CB171012900 GWH12MB-K3DNA3I/I CB171N12900
22 GWH12MB-K3DND3G CB405004500 GWH12MB-K3DND3G/I CB405N04500
23 GWH12MB-K3DNB7G CB164003101 GWH12MB-K3DNB7G/I CB164N03100
GWH12MB-K3DNE3G/O CB404W03501
24 GWH12MB-K3DNC9G CB145006101 GWH12MB-K3DNC9G/I CB145N06100
25 GWH12MB-K3DNC5G CB179004101 GWH12MB-K3DNC5G/I CB179N04100
26 GWH12MB-K3DNE1G CB143002201 GWH12MB-K3DNE1G/I CB143N02200
27 GWH12MB-K3DNC2G CB180001701 GWH12MB-K3DNC2G/I CB180N01700
28 GWH12MB-K3DNC1G CB139006101 GWH12MB-K3DNC1G/I CB139N06101
29 GWH12MB-K3DNA8G CB173006801 GWH12MB-K3DNA8G/I CB173N06800
GWH09MB-K3DND3G/I
GWH12MB-K3DND3G/I
GWH09MB-K3DNA8G/I
GWH12MB-K3DNA8G/I

3
Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model
1.GWH09MB-K3DNA4G 2.GWH09MB-K3DNC1G 3.GWH09MB-K3DNC2G
4.GWH09MB-K3DNC5G 5.GWH09MB-K3DNA5G 6.GWH09MB-K3DNA3G
7.GWH09MB-K3DND3G
Product Code
1.CB161007800 2.CB139006000 3.CB180001602
4.CB179004000/CB179004002 5.CB162009902
6.CB171011403 7.CB405004400
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 2600
Heating Capacity W 3000
Cooling Power Input W 870
Heating Power Input W 900
Cooling Power Current A 3.80
Heating Power Current A 3.92
Rated Input W 1400
Rated Cooling Current A6.0
Rated Heating Current A 6.5
Air Flow Volume(SH/H/M/L/SL) m3/h 600/500/400/300/-
Dehumidifying Volume L/h 0.8
EER W/W 2.99
COP W/W 3.33
SEER W/W 6.1
HSPF W/W 4.0
SCOP(Average/Warmer/Colder) 4/4.6/2.8
Application Area m212-18
Model of Indoor Unit
1.GWH09MB-K3DNA4G/I 2.GWH09MB-K3DNC1G/I
3.GWH09MB-K3DNC2G/I 4.GWH09MB-K3DNC5G/I
5.GWH09MB-K3DNA5G/I 6.GWH09MB-K3DNA3G/I
7.GWH09MB-K3DND3G/I
Indoor Unit Product Code
1.CB161N07800 2.CB139N06000 3.CB180N01602
4.CB179N04000/CB179N04002 5.CB162N09902
6.CB171N11403 7.CB405N04400
Fan Type Cross-ow
Diameter Length(DXL) mm Φ92X645
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1260/1050/950/750/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1320/1150/1050/950/-
Output of Fan Motor W 20
Fan Motor RLA A 0.1
Fan Motor Capacitor μF 1.0
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 2-1.4
Coil Length (LXDXW) mm 636X25.4X267
Swing Motor Model MP24AA
Output of Swing Motor W 2
Fuse A 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 42/39/34/28/-
Sound Power Level (SH/H/M/L/SL) dB (A) 54/50/45/40/-
Dimension (WXHXD) mm 848X274X189
Dimension of Carton Box (LXWXH) mm 923X264X356
Dimension of Package (LXWXH) mm 926X267X371
Net Weight kg 10
Gross Weight kg 12

4Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GWH09MB-K3DNE3G/O
Outdoor Unit Product Code CB404W03600
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD.
Compressor Model QXA-A091zE190A
Compressor Oil RB68EP
Compressor Type Rotary
L.R.A. A 16.5
Compressor RLA A 4.9
Compressor Power Input W 950
Overload Protector 1NT11L-6233
Throttling Method Electron expansion valve
Operation Temp oC 16~30
Ambient Temp (Cooling) oC -15~43
Ambient Temp (Heating) oC -20~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Rows-n Gap mm 1-1.4
Coil Length (LXDXW) mm 710X19.05X508
Fan Motor Speed rpm 900/650
Output of Fan Motor W 30
Fan Motor RLA A 0.15
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 1600
Fan Type Axial-ow
Fan Diameter mm Φ400
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for
the Discharge Side MPa 4.3
Permissible Excessive Operating Pressure for
the Suction Side MPa 2.5
Sound Pressure Level (H/M/L) dB (A) 51/-/-
Sound Power Level (H/M/L) dB (A) 61/-/-
Dimension (WXHXD) mm 782X540X320
Dimension of Carton Box (LXWXH) mm 848X360X580
Dimension of Package (LXWXH) mm 851X363X595
Net Weight kg 28
Gross Weight kg 31
Refrigerant R410A
Refrigerant Charge kg 0.70
Connection
Pipe
Length m 5
Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ9.52
Max Distance Height m 10
Max Distance Length m 15
Note: The connection pipe applies metric diameter.

5
Technical Information
Service Manual
Model
1.GWH09MB-K3DNC2G 2. GWH09MB-K3DNC5G
3.GWH09MB-K3DNB7G 4.GWH09MB-K3DNC9G
5.GWH09MB-K3DNE1G 6.GWH09MB-K3DNC1G
7.GWH09MB-K3DNA8G
Product Code
1.CB180001601 2.CB179004001 3.CB164003001
4.CB145006001 5.CB143002101 6.CB139006001
7.CB173006701
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 2600
Heating Capacity W 3000
Cooling Power Input W 870
Heating Power Input W 900
Cooling Power Current A 3.80
Heating Power Current A 3.92
Rated Input W 1400
Rated Cooling Current A 6.0
Rated Heating Current A 6.5
Air Flow Volume(SH/H/M/L/SL) m3/h 600/500/400/300/-
Dehumidifying Volume L/h 0.8
EER W/W 2.99
COP W/W 3.33
SEER W/W 6.1
HSPF W/W 4.0
SCOP(Average/Warmer/Colder) 4/4.6/2.8
Application Area m212-18
Model of Indoor Unit
1.GWH09MB-K3DNC2G/I 2. GWH09MB-K3DNC5G/I
3.GWH09MB-K3DNB7G/I 4.GWH09MB-K3DNC9G/I
5.GWH09MB-K3DNE1G/I 6.GWH09MB-K3DNC1G/I
7.GWH09MB-K3DNA8G/I
Indoor Unit Product Code
1.CB180N01601 2.CB179N04001 3.CB164N03001
4.CB145N06001 5.CB143N02101 6.CB139N06001
7.CB173N06701
Fan Type Cross-ow
Diameter Length(DXL) mm Φ92X645
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1260/1050/900/690/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1320/1200/1000/910/-
Output of Fan Motor W 20
Fan Motor RLA A 0.1
Fan Motor Capacitor μF 1.0
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 2-1.4
Coil Length (LXDXW) mm 636X25.4X267
Swing Motor Model MP24AA
Output of Swing Motor W 2
Fuse A 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 42/39/34/28/-
Sound Power Level (SH/H/M/L/SL) dB (A) 54/50/45/40/-
Dimension (WXHXD) mm 848X274X189
Dimension of Carton Box (LXWXH) mm 923X264X356
Dimension of Package (LXWXH) mm 926X267X371
Net Weight kg 9.5
Gross Weight kg 11.5

6Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GWH09MB-K3DNE3G/O
Outdoor Unit Product Code CB404W03601
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD.
Compressor Model QXA-A091zE190A
Compressor Oil RB68EP
Compressor Type Rotary
L.R.A. A 16.5
Compressor RLA A 4.9
Compressor Power Input W 950
Overload Protector 1NT11L-6233
Throttling Method Electron expansion valve
Operation Temp oC 16~30
Ambient Temp (Cooling) oC -15~48
Ambient Temp (Heating) oC -15~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Rows-n Gap mm 1-1.4
Coil Length (LXDXW) mm 710X19.05X508
Fan Motor Speed rpm 900/650
Output of Fan Motor W 30
Fan Motor RLA A 0.15
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 1600
Fan Type Axial-ow
Fan Diameter mm Φ400
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for
the Discharge Side MPa 4.3
Permissible Excessive Operating Pressure for
the Suction Side MPa 2.5
Sound Pressure Level (H/M/L) dB (A) 51/-/-
Sound Power Level (H/M/L) dB (A) 63/-/-
Dimension (WXHXD) mm 782X540X320
Dimension of Carton Box (LXWXH) mm 848X360X580
Dimension of Package (LXWXH) mm 851X363X595
Net Weight kg 28
Gross Weight kg 31
Refrigerant R410A
Refrigerant Charge kg 0.70
Connection
Pipe
Length m 5
Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ9.52
Max Distance Height m 10
Max Distance Length m 15
Note: The connection pipe applies metric diameter.

7
Technical Information
Service Manual
Model
1.GWH12MB-K3DNA4G 2.GWH12MB-K3DNC1G 3.GWH12MB-K3DNA5J
4.GWH12MB-K3DNA2I 5.GWH12MB-K3DNC2G 6.GWH12MB-K3DNA3I
7.GWH12MB-K3DND3G
Product Code
1.CB161007900 2.CB139006100 3.CB162010002
4.CB181007700 5.CB180001702 6.CB171012900
7.CB405004500
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 3500
Heating Capacity W 4000
Cooling Power Input W 1170
Heating Power Input W 1200
Cooling Power Current A 5.2
Heating Power Current A 5.3
Rated Input W 1600
Rated Cooling Current A 6.5
Rated Heating Current A 7.0
Air Flow Volume(SH/H/M/L/SL) m3/h 600/500/400/300/-
Dehumidifying Volume L/h 1.2
EER W/W 2.99
COP W/W 3.33
SEER W/W 6.1
HSPF W/W 4.0
SCOP(Average/Warmer/Colder) 4.0/4.8/2.8
Application Area m216-24
Model of Indoor Unit
1.GWH12MB-K3DNA4G/I 2.GWH12MB-K3DNC1G/I
3.GWH12MB-K3DNA5J/I 4.GWH12MB-K3DNA2I/I
5.GWH12MB-K3DNC2G/I 6.GWH12MB-K3DNA3I/I
7.GWH12MB-K3DND3G/I
Indoor Unit Product Code
1.CB161N07900 2.CB139N06100 3.CB162N10002
4.CB181N07700 5.CB180N01702 6.CB171N12900
7.CB405N04500
Fan Type Cross-ow
Diameter Length(DXL) mm Φ92X645
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1290/1070/900/690/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1280/1050/980/920/-
Output of Fan Motor W 20
Fan Motor RLA A 0.1
Fan Motor Capacitor μF 1.0
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 2-1.4
Coil Length (LXDXW) mm 636X25.4X267
Swing Motor Model MP24AA
Output of Swing Motor W 2
Fuse A 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 42/39/34/28/-
Sound Power Level (SH/H/M/L/SL) dB (A) 54/50/45/40/-
Dimension (WXHXD) mm 845X275X180
Dimension of Carton Box (LXWXH) mm 915X255X355
Dimension of Package (LXWXH) mm 918X258X370
Net Weight kg 9
Gross Weight kg 11

8Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GWH12MB-K3DNE3G/O
Outdoor Unit Product Code CB404W03500
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD.
Compressor Model QXA-A091zE190A
Compressor Oil RB68EP
Compressor Type Rotary
L.R.A. A 16.5
Compressor RLA A 4.9
Compressor Power Input W 950
Overload Protector 1NT11L-6233
Throttling Method Electron expansion valve
Operation Temp oC 16~30
Ambient Temp (Cooling) oC -15~48
Ambient Temp (Heating) oC -20~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Rows-n Gap mm 2-1.4
Coil Length (LXDXW) mm 695X38.1X506
Fan Motor Speed rpm 900/660
Output of Fan Motor W 30
Fan Motor RLA A 0.15
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 1600
Fan Type Axial-ow
Fan Diameter mm Φ400
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for
the Discharge Side MPa 4.3
Permissible Excessive Operating Pressure for
the Suction Side MPa 2.5
Sound Pressure Level (H/M/L) dB (A) 53/-/-
Sound Power Level (H/M/L) dB (A) 63/-/-
Dimension (WXHXD) mm 782X540X320
Dimension of Carton Box (LXWXH) mm 848X360X580
Dimension of Package (LXWXH) mm 851X363X595
Net Weight kg 29
Gross Weight kg 32
Refrigerant R410A
Refrigerant Charge kg 0.85
Connection
Pipe
Length m 5
Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ9.52
Max Distance Height m 10
Max Distance Length m 15
Note: The connection pipe applies metric diameter.

9
Technical Information
Service Manual
Model
1.GWH12MB-K3DNB7G 2.GWH12MB-K3DNC9G
3.GWH12MB-K3DNC5G 4.GWH12MB-K3DNE1G
5.GWH12MB-K3DNC2G 6.GWH12MB-K3DNC1G
7.GWH12MB-K3DNA8G
Product Code
1.CB164003101 2.CB145006101
3.CB179004101 4.CB143002201
5.CB180001701 6.CB139006101
7.CB173006801
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 3500
Heating Capacity W 4000
Cooling Power Input W 1170
Heating Power Input W 1200
Cooling Power Current A 5.2
Heating Power Current A 5.3
Rated Input W 1600
Rated Cooling Current A 6.5
Rated Heating Current A 7.0
Air Flow Volume(SH/H/M/L/SL) m3/h 600/500/400/300/-
Dehumidifying Volume L/h 1.2
EER W/W 2.99
COP W/W 3.33
SEER W/W 6.1
HSPF W/W /
SCOP(Average/Warmer/Colder) 4.0/4.8/2.8
Application Area m216-24
Model of Indoor Unit
1.GWH12MB-K3DNB7G/I 2.GWH12MB-K3DNC9G/I
3.GWH12MB-K3DNC5G/I 4.GWH12MB-K3DNE1G/I
5.GWH12MB-K3DNC2G/I 6.GWH12MB-K3DNC1G/I
7.GWH12MB-K3DNA8G/I
Indoor Unit Product Code
1.CB164N03101 2.CB145N06101
3.CB179N04101 4.CB143N02201
5.CB180N01701 6.CB139N06101
7.CB173N06801
Fan Type Cross-ow
Diameter Length(DXL) mm Φ92X645
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1290/1070/900/690/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1280/1050/980/920/-
Output of Fan Motor W 20
Fan Motor RLA A 0.1
Fan Motor Capacitor μF 1.0
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 2-1.4
Coil Length (LXDXW) mm 636X25.4X267
Swing Motor Model MP24AA
Output of Swing Motor W 2
Fuse A 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 42/39/35/30/-
Sound Power Level (SH/H/M/L/SL) dB (A) 54/51/46/42/-
Dimension (WXHXD) mm 845X275X180
Dimension of Carton Box (LXWXH) mm 915X255X355
Dimension of Package (LXWXH) mm 918X258X370
Net Weight kg 9
Gross Weight kg 11

10 Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GWH12MB-K3DNE3G/O
Outdoor Unit Product Code CB404W03501
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD.
Compressor Model QXA-A091zE190A
Compressor Oil RB68EP
Compressor Type Rotary
L.R.A. A 16.5
Compressor RLA A 4.9
Compressor Power Input W 950
Overload Protector 1NT11L-6233
Throttling Method Electron expansion valve
Operation Temp oC 16~30
Ambient Temp (Cooling) oC -15~48
Ambient Temp (Heating) oC -15~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Rows-n Gap mm 2-1.4
Coil Length (LXDXW) mm 710X38.1X508
Fan Motor Speed rpm 900/660
Output of Fan Motor W 30
Fan Motor RLA A 0.15
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 1600
Fan Type Axial-ow
Fan Diameter mm Φ400
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for
the Discharge Side MPa 4.3
Permissible Excessive Operating Pressure for
the Suction Side MPa 2.5
Sound Pressure Level (H/M/L) dB (A) 53/-/-
Sound Power Level (H/M/L) dB (A) 63/-/-
Dimension (WXHXD) mm 782X540X320
Dimension of Carton Box (LXWXH) mm 848X360X580
Dimension of Package (LXWXH) mm 851X363X595
Net Weight kg 29
Gross Weight kg 32
Refrigerant R410A
Refrigerant Charge kg 0.85
Connection
Pipe
Length m 5
Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ9.52
Max Distance Height m 10
Max Distance Length m 15
Note: The connection pipe applies metric diameter.

11
Technical Information
Service Manual
2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
Cooling Heating
Cooling Heating
32 33 34 35 36 37 38 39 43 –15 –10 –5
40 41 42
100
105
95
90
85
80
75
70
65
60
55
50
110
100
90
80
70
60
50
40
05
710
Conditions
Indoor:DB27°C/WB19°C
Indoor air flow:Super High
Pipe length: 5m
Conditions
Indoor:DB20°C/WB15°C
Indoor air flow:Super High
Pipe length: 5m
Outdoor temp.(°C) Outdoor temp.(°C)
Capacity ratio (%)
Capacity ratio (%)
Cooling Heating
0
1
2
3
4
5
6
7
8
9
10
020406080100 120
Condition
Indoor:DB 27 WB19
Indoor air flow: Turbo
Pipe length:5m
Voltage:230V
Compressor Speed(rps)
0
1
2
3
4
5
6
7
8
020406080100 12
0
Condition
Indoor:DB 20
Indoor air flow:Turbo
Pipe length:5m
Voltage:230V
Compressor Speed(rps)
Current(A)
Current(A)
09K
12K


°C °C °C
09K
12K

12 Technical Information
Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
Rated cooling
condition(oC)
(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
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (oC) T2 (oC)
27/19 35/24
09K
0.8 to 1.0
12 to 15 65 to 38 Super High High 54
12K 11 to 14 64 to 37 Super High High 60
Rated heating
condition(oC)
(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
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (oC) T2 (oC)
20/15 7/6
09K
2.2 to 2.4
35 to 63 2 to 5 Super High High 62
12K 35 to 65 2 to 5 Super High High 66
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:
2.5 Noise Curve
Indoor side noise when blowing
Outdoor side noise when Compressor speed changed
CompressorSpeed(rps)
706050403020
45
50
55
)A(Bd/esioN
75
09K
12K
Indoor fanmotor rotating speed
LowMiddleHighSupper High
25
30
35
40
45
)A(Bd/esioN

13
Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
3.2 Outoor Unit
Unit:mm
Unit:mm
143 80
45 45
Φ55 Φ55
845
542 173
180
275
130
320 776
510
714257
286
540

14 Technical Information
Service Manual
4. Refrigerant System Diagram
Connection pipe specication:
Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm)
Indoor unit Outdoor unit
COOLING
HEATING
Accumlator
4-Way valve
Discharge
Suction
Heat
exchanger
(evaporator) Heat
exchanger
(condenser)
Valve
Valve
Liquid pipe
side
Gas pipe
side
StrainerStrainer ElectronCapillary
expansion
valve
Compressor

15
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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16 Technical Information
Service Manual
These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
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17
Technical Information
Service Manual
5.2 PCB Printed Diagram
● Top view
Indoor Unit
● Bottom view
No. Name
1Port of live wire
2Protective tube
3Live wire of health function
4Port of neutral wire
5 Port of indoor fan
6Communication port
7Jumper cap
8Auto button
9Feedback of indoor fan
10 Port of motor for vertical swing
11 Buzzer
12 Port of display
13 Port of indoor ambient temperature
sensor
14 Port of indoor pipe temperature
sensor
15 Main chip
16 High-frequency transformer
89
2
3
4
5
10
7
12
13
11
6
14
16 15
1