Gree GWH09AKC-K6DNA1A User manual

Service Manual
Change for life
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Models:
GWH09AKC-K6DNA1A
GWH12AKC-K6DNA1A
GWH18AKC-K6DNA1A
(R32)

Service Manual
Table of Contents
Table of Contents
Part Ⅰ: Technical Information............................................................ 1
1. Summary .................................................................................................... 1
2. Specications.......................................................................................... 2
2.1 Specication Sheet..................................................................................................2
2.2 Capacity Variation Ratio According to Temperature ...................................6
2.3 Cooling and Heating Data Sheet in Rated Frequency.................................6
2.4 Noise Curve................................................................................................................7
3. Outline Dimension Diagram............................................................. 8
3.1 Indoor Unit ..................................................................................................................8
3.2 Outdoor Unit...............................................................................................................8
4. Refrigerant System Diagram ......................................................... 10
5. Electrical Part......................................................................................... 11
5.1 Wiring Diagram .......................................................................................................11
5.2 PCB Printed Diagram............................................................................................13
6. Function and Control......................................................................... 17
6.1 Remote Controller Introduction ........................................................................17
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

Service Manual
Table of Contents
8.6 Installation of Outdoor unit.................................................................................36
8.7 Vacuum Pumping and Leak Detection ..........................................................38
8.8 Check after Installation and Test Operation .................................................38
9. Maintenance ........................................................................................... 39
9.1 Error Code List........................................................................................................39
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 ..........................................................................................................66
11. Removal Procedure.......................................................................... 70
11.1 Removal Procedure of Indoor Unit ................................................................70
11.2 Removal Procedure of Outdoor Unit.............................................................77
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
Outdoor Unit:
Model list:
1. Summary
Part Ⅰ : Technical Information
Indoor Unit:
GWH12AKC-K6DNA1A/I
GWH09AKC-K6DNA1A/I
GWH18AKC-K6DNA1A/I
GWH12AKC-K6DNA1A/O
GWH09AKC-K6DNA1A/O
Remote Controller:
YAA1FB11
No Model Product code Indoor model Indoor product
code Outdoor model Outdoor product code
Remote
Controller
1GWH09AKC-K6DNA1A CB340000100 GWH09AKC-K6DNA1A/I CB340N00100 GWH09AKC-K6DNA1A/O CB340W00100
YAA1FB11
2CB340000101 CB340N00101
3GWH12AKC-K6DNA1A CB340000200 GWH12AKC-K6DNA1A/I CB340N00200 GWH12AKC-K6DNA1A/O CB340W00200
4CB340000201 CB340N00201
5GWH18AKC-K6DNA1A CB340000300 GWH18AKC-K6DNA1A/I CB340N00300 GWH18AKC-K6DNA1A/O CB340W00300
GWH18AKC-K6DNA1A/O

2Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model GWH09AKC-K6DNA1A GWH12AKC-K6DNA1A
Product Code CB340000100
CB340000101
CB340000200
CB340000201
Power
Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Power Supply Mode Indoor Indoor
Cooling Capacity W 2700 3530
Heating Capacity W 3600 4200
Cooling Power Input W 550 802
Heating Power Input W 750 934
Cooling Current Input A 2.65 3.55
Heating Current Input A 3.54 4.23
Rated Input W 1600 1650
Rated Cooling Current A 6.05 6.22
Rated Heating Current A 7 7.5
Air Flow Volume(SS/H/MH/M/ML/L/SL/SM) m3/h 700/600/530/500/400/300/270/180 800/700/550/500/400/300/270/180
Dehumidifying Volume L/h 0.8 1.4
EER W/W 4.91 4.4
COP W/W 4.8 4.5
SEER W/W 9.4 9
SCOP(Average/Warmer/Colder) W/W 5.1/6.3/4 5.1/6.2/4
Application Area m212-18 16-24
Indoor Unit
Model GWH09AKC-K6DNA1A/I GWH12AKC-K6DNA1A/I
Product Code CB340N00100
CB340N00101
CB340N00200
CB340N00201
Fan Type Cross-ow Cross-ow
Fan Diameter Length(DXL) mm Φ120×650 Φ120×650
Cooling Speed r/min 1200/1050/950/900/750/600/550/450 1300/1100/1000/900/750/600/550/450
Heating Speed r/min 1200/1050/950/900/800/750/650 1300/1100/1000/900/800/750/650
Fan Motor Power Output W 20 20
Fan Motor RLA A - -
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 4-1.4 4-1.4
Evaporator Coil Length (LXDXW) mm 651×59.5×365 651×59.5×365
Swing Motor Model MP24AM/MP35CN /MP20AC MP24AM/MP35CN /MP20AC
Swing Motor Power Output W 1.5/2.5/1.5 1.5/2.5/1.5
Fuse Current A 5 5
Sound Pressure Level dB (A) Cooling:42/38/35/33/29/22/19/18
Heating:42/38/35/33/29/27/24
Cooling:44/39/37/34/29/23/22/20
Heating:44/39/37/34/29/27/25
Sound Power Level dB (A) 55 59
Dimension (WXHXD) mm 977X281X295 977X281X295
Dimension of Carton Box
(LXWXH) mm 1083X373X387 1083X373X387
Dimension of Package (LXWXH) mm 1086X376X402 1086X376X402
Net Weight kg 17 17
Gross Weight kg 21.5 21.5

3
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 GWH09AKC-K6DNA1A/O GWH12AKC-K6DNA1A/O
Outdoor Unit Product Code CB340W00100 CB340W00200
Compressor Manufacturer ZHUHAI LANDA
COMPRESSOR CO., LTD
ZHUHAI LANDA
COMPRESSOR CO., LTD
Compressor Model QXF-B103zF190A QXF-B103zF190A
Compressor Oil FW68DA FW68DA
Compressor Type Rotary Rotary
Compressor LRA. A 25 25
Compressor RLA A 4 4
Compressor Power Input W 800 800
Compressor Overload Protector HPC115/95U1/KSD115oC HPC115/95U1/KSD115oC
Throttling Method Electron expansion valve Electron expansion valve
Set Temperature Range ºC Cooling:16~30
Heating:8~30
Cooling:16~30
Heating:8~30
Cooling Operation Ambient Temperature Range ºC -15~52 -15~52
Heating Operation Ambient Temperature Range ºC -25~24 -25~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7.94 Φ7.94
Condenser Rows-n Gap mm 2.5-1.4 2.5-1.4
Condenser Coil Length (LXDXW) mm 733×57×550 733×57×550
Fan Motor Speed rpm 900 900
Fan Motor Power Output W 30 30
Fan Motor RLA A 0.37 0.37
Fan Motor Capacitor μF / /
Outdoor Unit Air Flow Volume m3/h 2400 2400
Fan Type Axial-ow Axial-ow
Fan Diameter mm 438 438
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) 53 54
Sound Power Level (H/M/L) dB (A) 62 62
Dimension(WXHXD) mm 899X596X378 899X596X378
Dimension of Carton Box (LXWXH) mm 945X417X630 945X417X630
Dimension of Package(LXWXH) mm 948X420X645 948X420X645
Net Weight kg 37.5 37.5
Gross Weight kg 40.5 40.5
Refrigerant R32 R32
Refrigerant Charge kg 1 1
Connection
Pipe
Connection Pipe Length m 5 5
Connection Pipe Gas Additional Charge g/m 16 16
Outer Diameter Liquid Pipe 1/4" 1/4"
Outer Diameter Gas Pipe 3/8" 3/8"
Max Distance Height m 10 10
Max Distance Length m 15 20
Note: The connection pipe applies metric diameter.

4Technical Information
Service Manual
Model GWH18AKC-K6DNA1A
Product Code CB340000300
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 5300
Heating Capacity W 5600
Cooling Power Input W 1395
Heating Power Input W 1474
Cooling Current Input A 6.2
Heating Current Input A 6.6
Rated Input W 2450
Rated Cooling Current A 9.3
Rated Heating Current A 11
Air Flow Volume(SS/H/MH/M/ML/L/SL/SM) m3/h 800/700/550/500/450/350/300/250
Dehumidifying Volume L/h 1.8
EER W/W 3.8
COP W/W 3.8
SEER W/W 7
SCOP(Average/Warmer/Colder) W/W 4.3/4.9/3.4
Application Area m221-31
Indoor Unit
Model GWH18AKC-K6DNA1A/I
Product Code CB340N00300
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Φ120×650
Cooling Speed r/min 1300/1100/1000/900/800/650/600/550
Heating Speed r/min 1350/1200/1050/950/900/800/750
Fan Motor Power Output W 20
Fan Motor RLA A -
Fan Motor Capacitor μF /
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ5
Evaporator Row-n Gap mm 4-1.4
Evaporator Coil Length (LXDXW) mm 651×59.5×365
Swing Motor Model MP24AM MP35CN MP20AC
Swing Motor Power Output W 1.5/2.5/1.5
Fuse Current A 5
Sound Pressure Level dB (A) Cooling:46/40/37/35/31/25/24/22
Heating:46/41/38/34/32/29/28
Sound Power Level dB (A) Cooling:60/54/51/49/45/39/38
Heating:60/55/52/48/46/43/42
Dimension (WXHXD) mm 977X281X295
Dimension of Carton Box
(LXWXH) mm 1083X373X387
Dimension of Package (LXWXH) mm 1090X380X407
Net Weight kg 17
Gross Weight kg 21.5

5
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 GWH18AKC-K6DNA1A/O
Outdoor Unit Product Code CB340W00300
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD
Compressor Model QXF-B141zF030A
Compressor Oil 0
Compressor Type Rotary
Compressor LRA. A 25
Compressor RLA A 6.5
Compressor Power Input W 1410
Compressor Overload Protector 1NT11L-6233/KSD115oC/HPC 115/95
Throttling Method Electron expansion valve
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature Range ºC -15~52
Heating Operation Ambient Temperature Range ºC -25~24
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
Condenser Rows-n Gap mm 2-1.4
Condenser Coil Length (LXDXW) mm 935×38.1×660
Fan Motor Speed rpm 800
Fan Motor Power Output W 60
Fan Motor RLA A 0.65
Fan Motor Capacitor μF /
Outdoor Unit Air Flow Volume m3/h 3200
Fan Type Axial-ow
Fan Diameter mm 520
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
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) 58
Sound Power Level (H/M/L) dB (A) 65
Dimension(WXHXD) mm 965X700X396
Dimension of Carton Box (LXWXH) mm 1026X455X735
Dimension of Package(LXWXH) mm 1029X458X750
Net Weight kg 46
Gross Weight kg 50.5
Refrigerant R32
Refrigerant Charge kg 1.2
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 16
Outer Diameter Liquid Pipe 1/4"
Outer Diameter Gas Pipe 1/2"
Max Distance Height m 10
Max Distance Length m 25
Note: The connection pipe applies metric diameter.

6Technical Information
Service Manual
2.3 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
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
27/19 35/24 ALL 0.9 to 1.1 12 to 14 75 to 37 Super High High
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
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
20/- 7/6 ALL 2.8 to 3.0 70 to 35 2 to 4 Super High High
2.2 Capacity Variation Ratio According to Temperature
0
20
40
60
80
100
120
140
-15 -10 -5 0 5 10 15 20 25 30 35 40 45 52
Condition Cooling
Indoor:DB27°C/WB19°C
Indoor air flow:Super High
Pipe length:5m
Cooling
Capacity ratio(%)
0
20
40
60
80
100
120
140
Capacity ratio(%)
-25-20 -15-10 075-5 1510 20 24
Heatling
Outdoor Temp.(°C)Outdoor Temp.(°C)
Condition Heatin g
°C
/WB15°C
Indoor air flow: Super High
5m
Indoor:DB20
Pipe length:
9/12K
18K
9/12K
18K

7
Technical Information
Service Manual
2.4 Noise Curve
40
30
20
15
25
35
Indoor side noise when blowing
Indoor fan motor rotating speed
45
50
Noice/dB(A)
SL LMLMMH HSS
9K Heating9K Cooling
12K Heating
18K Heating
12K Cooling
18K Cooling
46
48
50
52
54
56
58
60
62
20 30 40 50 60 70 80 90
100
Compressor frequency(Hz)
Noise dB(A)
9/12K Cooling
9/12k Heating
18k

8Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
3.2 Outdoor Unit
Unit:mm
596
354
838
818
899
303
378
490
Unit:mm
977 295
542 228
281
207
281
127
49
55
¢
9/12K

9
Technical Information
Service Manual
340 897
965
700
396
560
364
Unit:mm
18K

10 Technical Information
Service Manual
4. Refrigerant System Diagram
Connection pipe speci ication:
Liquid pipe:1/4" (6mm)
Gas pipe: 9/12K 3/8" (9.52mm)
18k 1/2"(12mm)
Indoor unit
COOLING
4-Way valve
HEATING
Discharge
Outdoor unit
Suction
Heat
exchanger
(evaporator) Heat
exchanger
(condenser)
Valve
Valve
side
Liquid pipe
Gas pipe
side
Strainer Electron
expansion
valve
Strainer
Accumlator
Compressor
Capillary

11
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.
600007062603
BK
COM-OUT
BU
BN
M1
RT1
RT2
PE
DC-MOTOR
T-SENSOR SWING-LR1
E
TEST-COM
AC-L
SWING-LR2
M3
M2
SWING-UD-PUSH
M5 M6
M4
AP2
DISP1
AP3
COM-PC
AP4
CONNECTION BOARD
AP5
M7
J1
DISPLAY
HUMAN
COM-TRANS
COM-MAIN
N(N1)(N2)
L1
MAGNETIC RING
TEMP.
SENSOR
ROOM TUBE
TEMP.
SENSOR
FAN
MOTOR
MOTOR 1
LEFT-RIGHT
MOTOR 2
LEFT-RIGHT EXTRUSION
MOTORSWING
MOTOR
UP-DOWN
AP1:PRINTED CIRCUIT BOARD
CAP
JUMP1
YEGN
YEGN
OUTDOOR UNIT
USED FOR AFTER-SALES DETECTION
APPLICABLE FOR THE MODEL WITH
AFTER-SALES INSPECTION LINE
DISPLAY BOARD
WIFI DETECTION BOARD
EVAPORATOR
HUMAN BODY INDUCTION METER
HUMAN DRIVE MOTOR
SWING SWING
LEFT EXTRUSION
MOTOR
RIGHT

12 Technical Information
Service Manual
● Outdoor Unit
These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit.
NOTE:
applies to the iron
shell motor.
Motor ground only
Please don't touch any terminal
when the machine is running,
stopping or has been powered
off for less than 30 minutes to
prevent the risk of electric shock !
WARNING
θ
θ
θ
INDOOR UNIT
YEGN
BU
BK
BN
N
L
N(1)
2
3
L1
L1
BU
BK
BN
MAGNETIC RING
TERMINAL
XT
BLOCK
N
AC-L1(AC-L)
COMU
PE
CN2
TEMP.
SENSOR
TEMP.
SENSOR
TEMP.
RT3
RT2
RT1
SENSOR
(20k) (15k) (50k)
OUTTUBE OUTROOM EXHAUST
CN1
EKV
ELECTRONIC
VALVE
EXPANSION
4YV
4-WAY
4WAY
VALVE
VT VT
LX1-1 LX1-2
L2 L2
REACTOR
L
BU BN
MAGNETIC
RING
AP:Main Board
EH2
Bottom
Band
Heater
HEAT2 OFAN
FAN
M
PE
PE
YEGN
MOTOR
PROTECTOR
OVERLOAD
RD
OVC-COMP
SAT
RD
L3
W
V
U
COMP.
COMP
W
V
U
X1
BU YE RD
MAGNETIC
RING
POWER
L
N
YEGN
BU
BN(BK)
YEGNYEGN
ELECTRICAL
BOX
PE
BU YE RD
L4
600007061430
COM_INNER
θθ
W
V
U
θ
PRINTED CIRCUIT BOARD
FAN MOTOR
PE
YEGN
TEMP.SENSOR EXHAUST TEMP.SENSOR OUTROOM OUTTUBE TEMP.SENSOR
BK
WH
BU YE
COMP.
X1
COMP
OVC_COMP
OFAN
PE
RD
M1
RT3RT2RT1
RDBU YE
U(BU)V(YE) W(RD)
T_SENSOR
L3
MAGNETIC
RING L3L3
4-WAY
4YV
4WAY
VALVE
VT VT
AC_L
N1
AP1
20K 50K
15K
PE
iron shell motor.
only applies to the
Note: Motor ground
FA
EKV
VALVE
EXPANSION
ELECTRONIC
Please don't touch any
electronic component or
terminal when the machine
is running , stopping or
has been powered off for
less than 30 minutes to
prevent the risk of
electric shock!
WARNING
MAGNETIC
RING
OVERLOAD PROTECTOR
WHWH
SAT
BN(BK)
MAGNETIC
PE
TERMINAL
BLOCK
YEGN
BU
BN
BU
BK
RING
INDOOR UNIT
XT
BU
BK
BN 3
2
N(1)
L
N
PE
BU
YEGN
POWER
L N
L1 L2
BN
L1 L2
L1 L2
PE
YEGN
L4
HEAT_B
EH
RD
BOTTOM
HEATER
BAND
RD
9/12K
18K

13
Technical Information
Service Manual
5.2 PCB Printed Diagram
Indoor Main PCB
No. Name
1 Communication interface of service self-detection device
2 Communication terminal of indoor unit and outdoor unit
3 Fuse
4 Live wire terminal
5 Grounding wire interface
6 DC motor terminal
7 Up&down swing and out-pushing mechanism
8 Up&down swing 1
9 Up&down swing 2
10 Jumper cap
11 Display board interface
12 Temperature sensor terminal
13 Neutral wire terminal
1234 5
6
78910
11
12
13

14 Technical Information
Service Manual
1 2
34
1
No. Name
1 WIFI detection interface
2 Main board interface
3 Auto button
4 Connection board interface
No. Name
1 Display board interface
2 Human body indubtion meter interface
1
2
No. Name
1 Connection board interface
Display PCB
Connection PCB
Human induction meter PCB

15
Technical Information
Service Manual
Outdoor Unit
4
5
6
7
8
9
1011
12
13
13
1
2
3
No. Name
1 Interface of compressor wire
2 Reactor wiring terminal 2
3 Reactor wiring terminal 1
4 Terminal of chassis electric heater
5 4-way valve terminal
6 Grounding wire
7 Neutral wire
8 Communication wire
9 9 Live wire
10 Terminal of electronic expansion valve
11 Interface of temperature sensor
12 Overload interface of compressor
13 Terminal of outdoor fan
9/12K

16 Technical Information
Service Manual
18K
1234 56
7
8
9
10
No. Name
1 Interface of compressor wire
2 Overload interface of compressor
3 Interface of temperature sensor
4 Terminal of electronic expansion valve
5 Terminal of outdoor fan
6 4-way valve terminal
7 Communication wire
8 Live wire
9 Grounding wire
10 Neutral wire

17
Technical Information
Service Manual
6. Function and Control
6.1 Remote Controller Introduction
Introduction for icons on display screen
cool button
/ button
left and right fixed angle butto
n
E-heater button
heat button
timer button
WiFi button
breeze button
I sense button
ON/OFF button
button
fan button
button
mode button
Up and down fixed angle button
health button
light button
sleep button
Set fan speed
Set time
TIMER ON/TIMER OFF Up & down swing
Left & right swing
:Set temp.
:Indoor ambient temp.
Heat mode
Fan mode
Dry mode
Cool mode
Auto mode
Operation mode
Temp. display type
:LED on
:Auto LED
Light display type
:Sleep mode 1.
:Sleep mode 2.
:Sleep mode 3.
:Sleep mode 4.
Sleep mode
Healthy mode
WiFi
A
uxiliary heating function
SMART function display
Battery display
Child lock status display
Set temperature display