Gree GWH09AEC-K6DNA1A User manual

Service Manual
Change for life
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Models: GWH09AEC-K6DNA1A
GWH12AEC-K6DNA1A
(Refrigerant R32)

Service Manual
Table of Contents
Table of Contents
Part Ⅰ : Technical Information......................................................................2
1. Summary......................................................................................................................2
2. Specications..........................................................................................................3
2.1 Specication Sheet...........................................................................................................3
2.2 Operation Characteristic Curve ........................................................................................7
2.3 Capacity Variation Ratio According to Temperature .........................................................7
2.4 Cooling and Heating Data Sheet in Rated Frequency .....................................................8
2.5 Noise Curve......................................................................................................................9
3. Outline Dimension Diagram......................................................................10
3.1 Indoor Unit......................................................................................................................10
3.2 Outdoor Unit ...................................................................................................................10
4. Refrigerant System Diagram....................................................................11
5. Electrical Part.........................................................................................................12
5.1 Wiring Diagram...............................................................................................................12
5.2 PCB Printed Diagram .....................................................................................................14
6. Function and Control......................................................................................16
6.1 Remote Controller Introduction ......................................................................................16
6.2 GREE+ App Operation Manual ......................................................................................21
6.3 Ewpe Smart App Operation Manual ...............................................................................22
6.4 Brief Description of Modes and Functions......................................................................23
Part Ⅱ: Installation and Maintenance .................................................28
7. Notes for Installation and Maintenance..........................................28
8. Installation................................................................................................................32
8.1 Installation Dimension Diagram......................................................................................32
8.2 Installation Parts-checking ............................................................................................34
8.3 Selection of Installation Location....................................................................................34
8.4 Electric Connection Requirement...................................................................................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 ...................................................................39

Service Manual
Table of Contents
9. Maintenance............................................................................................................40
9.1 Error Code List ...............................................................................................................40
9.2 Troubleshooting for Main Malfunction ............................................................................46
9.3 Troubleshooting for Normal Malfunction.........................................................................60
10. Exploded View and Parts List ..............................................................62
10.1 Indoor Unit....................................................................................................................62
10.2 Outdoor Unit .................................................................................................................64
11. Removal Procedure.......................................................................................67
11.1 Removal Procedure of Indoor Unit ...............................................................................67
11.2 Removal Procedure of Outdoor Unit ............................................................................74
Appendix:........................................................................................................................78
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................78
Appendix 2: Conguration of Connection Pipe.....................................................................78
Appendix 3: Pipe expanding method....................................................................................79
Appendix 4: List of Resistance for Temperature Sensor ......................................................80

2Technical Information
Service Manual
Outdoor Unit:
1. Summary
Part Ⅰ : Technical Information
Indoor Unit:
GWH09AEC-K6DNA1A/I
GWH12AEC-K6DNA1A/I
GWH09AEC-K6DNA1A/O
GWH12AEC-K6DNA1A/O
Remote Controller:
YAU1FB
No Model Product code Indoor model Indoor product
code Outdoor model Outdoor product code
Remote
Controller
1GWH09AEC-K6DNA1A CB370000300 GWH09AEC-K6DNA1A/I CB370N00300 GWH09AEC-K6DNA1A/O CB370W00300
YAU1FB
2 CB370000301 CB370W00301
3GWH12AEC-K6DNA1A CB370000400 GWH12AEC-K6DNA1A/I CB370N00400 GWH12AEC-K6DNA1A/O CB370W00400
4 CB370000401 CB370W00401

3
Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model GWH09AEC-K6DNA1A GWH09AEC-K6DNA1A
Product Code CB370000300 CB370000301
Power
Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50/60 50
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity W 2700 2700
Heating Capacity W 3200 3200
Cooling Power Input W 600 600
Heating Power Input W 715 715
Cooling Current Input A 2.8 2.8
Heating Current Input A 3.3 3.3
Rated Input W 1650 1650
Rated Cooling Current A 6.4 6.4
Rated Heating Current A 6.5 6.5
Air Flow Volume(SS/H/MH/M/ML/L/SL/SM) m3/h 735/663/607/509/471/359/200/150 735/663/607/509/471/359/200/150
Dehumidifying Volume L/h 0.8 0.8
EER W/W 4.5 4.5
COP W/W 4.48 4.48
SEER W/W 8.5 8.5
SCOP(Average/Warmer/Colder) W/W 4.6/5.5/3.8 4.6/5.5/3.8
Application Area m212-18 12-18
Indoor Unit
Model GWH09AEC-K6DNA1A/I GWH09AEC-K6DNA1A/I
Product Code CB370N00300 CB370N00300
Fan Type Cross-ow Cross-ow
Fan Diameter Length(DXL) mm Φ98X633 Φ98X633
Cooling Speed r/min 1300/1150/1050/950/800/600/550/500 1300/1150/1050/950/800/600/550/500
Heating Speed r/min 1300/1150/1050/950/900/850/800/- 1300/1150/1050/950/900/850/800/-
Fan Motor Power Output W 10 10
Fan Motor RLA A 0.09 0.09
Fan Motor Capacitor μF / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ5 Φ5
Evaporator Row-n Gap mm 2-1.4 2-1.4
Evaporator Coil Length (LXDXW) mm 634X22.8X304.8 634X22.8X304.8
Swing Motor Model MP35CN/MP30AS/MP20AC MP35CN/MP30AS/MP20AC
Swing Motor Power Output W 2.5/2.5/1.5 2.5/2.5/1.5
Fuse Current A 3.15 3.15
Sound Pressure Level dB (A) Cooling:43/39/36/33/28/22/21/20
Heating:43/39/36/33/32/30/28/-
Cooling:43/39/36/33/28/22/21/20
Heating:43/39/36/33/32/30/28/-
Sound Power Level dB (A) Cooling:57/53/50/47/42/36/35/34
Heating:57/53/50/47/46/44/42/-
Cooling:57/53/50/47/42/36/35/34
Heating:57/53/50/47/46/44/42/-
Dimension (WXHXD) mm 945X293X225 945X293X225
Dimension of Carton Box
(LXWXH) mm 1032X381X310 1032X381X310
Dimension of Package (LXWXH) mm 1035X384X325 1035X384X325
Net Weight kg 14 14
Gross Weight kg 17 17

4Technical 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 GWH09AEC-K6DNA1A/O GWH09AEC-K6DNA1A/O
Outdoor Unit Product Code CB370W00300 CB370W00301
Compressor Manufacturer ZHUHAI LANDA
COMPRESSOR CO., LTD
ZHUHAI LANDA
COMPRESSOR CO., LTD
Compressor Model QXF-A102zE190C QXF-A102zE190C
Compressor Oil FW68DA FW68DA
Compressor Type Rotary Rotary
Compressor LRA. A 20 20
Compressor RLA A 7.9 7.9
Compressor Power Input W 1230 1230
Compressor Overload Protector / /
Throttling Method Electron expansion valve Electron expansion valve
Set Temperature Range ºC 16~30 16~30
Cooling Operation Ambient Temperature Range ºC -15~43 -15~43
Heating Operation Ambient Temperature Range ºC -22~24 -15~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7Φ7
Condenser Rows-n Gap mm 2-1.4 2-1.4
Condenser Coil Length (LXDXW) mm 742X38.1X550 742X38.1X550
Fan Motor Speed rpm 900 900
Fan Motor Power Output W 30 30
Fan Motor RLA A 0.36 0.36
Fan Motor Capacitor μF / /
Outdoor Unit Air Flow Volume m3/h 2200 2200
Fan Type Axial-ow Axial-ow
Fan Diameter mm Φ438 Φ438
Defrosting Method / /
Climate Type T1 T1
Isolation 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) 52/-/- 52/-/-
Sound Power Level (H/M/L) dB (A) 62/-/- 62/-/-
Dimension(WXHXD) mm 848X596X320 848X596X320
Dimension of Carton Box (LXWXH) mm 878X360X630 878X360X630
Dimension of Package(LXWXH) mm 881X363X645 881X363X645
Net Weight kg 33.5 33.5
Gross Weight kg 36.5 36.5
Refrigerant R32 R32
Refrigerant Charge kg 0.7 0.7
Connection
Pipe
Connection Pipe Length m 5 5
Connection Pipe Gas Additional Charge g/m 16 16
Outer Diameter Liquid Pipe mm Φ6Φ6
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
Technical Information
Service Manual
Model GWH12AEC-K6DNA1A GWH12AEC-K6DNA1A
Product Code CB370000400 CB370000401
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 3810 3810
Cooling Power Input W 875 875
Heating Power Input W 952 952
Cooling Current Input A 4 4
Heating Current Input A 4.3 4.3
Rated Input W 1650 1650
Rated Cooling Current A 6.8 6.8
Rated Heating Current A 7.5 7.5
Air Flow Volume(SS/H/MH/M/ML/L/SL/SM) m3/h 750/650/600/510/470/360/200/150 750/650/600/510/470/360/200/150
Dehumidifying Volume L/h 1.4 1.4
EER W/W 4.0 4.0
COP W/W 4.0 4.0
SEER W/W 8.5 8.5
SCOP(Average/Warmer/Colder) W/W 4.6/5.5/3.5 4.6/5.5/3.5
Application Area m216-24 16-24
Indoor Unit
Model GWH12AEC-K6DNA1A/I GWH12AEC-K6DNA1A/I
Product Code CB370N00400 CB370N00400
Fan Type Cross-ow Cross-ow
Fan Diameter Length(DXL) mm Φ98X633 Φ98X633
Cooling Speed r/min 1350/1200/1100/1000/850/600/550/500 1350/1200/1100/1000/850/600/550/500
Heating Speed r/min 1350/1200/1120/1050/950/800/750/- 1350/1200/1120/1050/950/800/750/-
Fan Motor Power Output W 10 10
Fan Motor RLA A 0.09 0.09
Fan Motor Capacitor μF / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ5 Φ5
Evaporator Row-n Gap mm 2-1.4 2-1.4
Evaporator Coil Length (LXDXW) mm 634X22.8X304.8 634X22.8X304.8
Swing Motor Model MP35CN/MP30AS/MP20AC MP35CN/MP30AS/MP20AC
Swing Motor Power Output W 2.5/2.5/1.5 2.5/2.5/1.5
Fuse Current A 3.15 3.15
Sound Pressure Level dB (A) Cooling:43/39/36/33/28/22/21/20
Heating:43/40/37/35/32/27/26/-
Cooling:43/39/36/33/28/22/21/20
Heating:43/40/37/35/32/27/26/-
Sound Power Level dB (A) Cooling:58/53/50/47/42/36/35/34
Heating:58/54/51/49/46/41/40/-
Cooling:58/53/50/47/42/36/35/34
Heating:58/54/51/49/46/41/40/-
Dimension (WXHXD) mm 945X293X225 945X293X225
Dimension of Carton Box
(LXWXH) mm 1032X381X310 1032X381X310
Dimension of Package (LXWXH) mm 1035X384X325 1035X384X325
Net Weight kg 14 14
Gross Weight kg 17 17

6Technical 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 GWH12AEC-K6DNA1A/O GWH12AEC-K6DNA1A/O
Outdoor Unit Product Code CB370W00400 CB370W00401
Compressor Manufacturer ZHUHAI LANDA
COMPRESSOR CO., LTD
ZHUHAI LANDA
COMPRESSOR CO., LTD
Compressor Model QXF-A102zE190C QXF-A102zE190C
Compressor Oil FW68DA FW68DA
Compressor Type Rotary Rotary
Compressor LRA. A 20 20
Compressor RLA A 7.9 7.9
Compressor Power Input W 1230 1230
Compressor Overload Protector / /
Throttling Method Electron expansion valve Electron expansion valve
Set Temperature Range ºC 16~30 16~30
Cooling Operation Ambient Temperature Range ºC -15~43 -15~43
Heating Operation Ambient Temperature Range ºC -22~24 -15~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7.94 Φ7.94
Condenser Rows-n Gap mm 2-1.4 2-1.4
Condenser Coil Length (LXDXW) mm 734X38.1X550 742X38.1X550
Fan Motor Speed rpm 900 900
Fan Motor Power Output W 30 30
Fan Motor RLA A 0.36 0.36
Fan Motor Capacitor μF / /
Outdoor Unit Air Flow Volume m3/h 2200 2200
Fan Type Axial-ow Axial-ow
Fan Diameter mm Φ438 Φ438
Defrosting Method / /
Climate Type T1 T1
Isolation 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) 52/-/- 52/-/-
Sound Power Level (H/M/L) dB (A) 62/-/- 62/-/-
Dimension(WXHXD) mm 848X596X320 848X596X320
Dimension of Carton Box (LXWXH) mm 878X360X630 878X360X630
Dimension of Package(LXWXH) mm 881X363X645 881X363X645
Net Weight kg 33.5 33.5
Gross Weight kg 36.5 36.5
Refrigerant R32 R32
Refrigerant Charge kg 0.8 0.8
Connection
Pipe
Connection Pipe Length m 5 5
Connection Pipe Gas Additional Charge g/m 16 16
Outer Diameter Liquid Pipe mm Φ6Φ6
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.

7
Technical Information
Service Manual
2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
0
1
2
3
4
5
6
7
8
9
10
020406080 100 120
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
020406080 100
120
Condition
Indoor:DB 20
Indoor air flow:Turbo
Pipe length:5m
Voltage:230V
Compressor Speed(rps)
Current(A)
Current(A)
50
60
70
80
90
100
110
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
Capacity ratio(%)
Condition
Indoor:DB27℃WB19℃
Indoor air flow:
Turbo
Pipe length:7.5m
Outdoor temp. (°C)
0
20
40
60
80
100
120
Capacity ratio(%)
Outdoor temp. (°C)
-7 -5 0510
Condition
Indoor:DB20℃
Indoor air flow:
Turbo
Pipe length:7.5m
Cooling: Heating:
Cooling:
Heating operation ambient temperature range is -15°C~24°C
Heating:
Cooling Heating
32 33 34 35 36 37 38 39 43
43-15 -5 71931
–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
05710
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 (%)
50
60
70
80
90
100
110
Capacity ratio(%)
Condition
Indoor air flow: Super High
Pipe length:
5m
Outdoor temp. (°C)
0
20
40
60
80
100
120
Capacity ratio(%)
Condition
Indoor air flow: Super High
Pipe length:
5m
Outdoor temp. (°C)
Indoor:DB 20°C
Indoor:DB 27°C
WB19 °C
-15-12 -9 -6 -3 -1 10725

8Technical Information
Service Manual
Heating operation ambient temperature range is -22°C~24°C
-12 -9 -6 -3 -1
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
05710
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 (%)
50
60
70
80
90
100
110
Capacity ratio(%)
Condition
Indoor air flow: Super High
Pipe length:
5m
Outdoor temp. (°C)
0
20
-22
40
60
80
100
120
Capacity ratio(%)
Condition
Indoor air flow: Super High
Pipe length:
5m
Outdoor temp. (°C)
Indoor:DB 20°C
Indoor:DB 27°C
WB19 °C
10725
43-15-57 19 31
Cooling: Heating:
2.4 Cooling and Heating Data Sheet in Rated Frequency
Cooling:
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 35/24 09K 0.8 ~ 1.1 12 to 15 65 to 38 TURBO High 49
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: 5m.
Heating:
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)
20/- 7/6 09K 2.8 ~ 3.2 35 to 63 2 to 5 TURBO High 59