Gree GWH18QD-K3DNA1G User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
Models: GWH18QD-K3DNA1G
GWH18QD-K3DNA2G
GWH18QD-K3DNA5G
GWH18QD-K3DNA6G
GWH18QD-K3DNB2G
GWH18QD-K3DNB4G
GWH18QD-K3DNB6G
GWH18QD-K3DNB8G
GWH18QD-K3DNC2G
GWH24QE-K3DNA1G
GWH24QE-K3DNA2G
GWH24QE-K3DNA5G
GWH24QE-K3DNA6G
GWH24QE-K3DNB2G
GWH24QE-K3DNB4G
GWH24QE-K3DNB6G
GWH24QE-K3DNB8G
GWH24QE-K3DNC2G
(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 Outdoor Unit ...................................................................................................................14
4. Refrigerant System Diagram....................................................................15
5. Electrical Part.........................................................................................................16
5.1 Wiring Diagram...............................................................................................................16
5.2 PCB Printed Diagram .....................................................................................................20
6. Function and Control......................................................................................23
6.1 Remote Controller Introduction .....................................................................................23
6.2 Brief Description of Modes and Functions......................................................................27
Part Ⅱ: Installation and Maintenance .................................................36
7. Notes for Installation and Maintenance..........................................36
8. Installation................................................................................................................38
8.1 Installation Dimension Diagram......................................................................................38
8.2 Installation Parts-checking ............................................................................................40
8.3 Selection of Installation Location....................................................................................40
8.4 Electric Connection Requirement...................................................................................40
8.5 Installation of Indoor Unit................................................................................................40
8.6 Installation of Outdoor Unit.............................................................................................43
8.7 Vacuum Pumping and Leak Detection ...........................................................................44
8.8 Check after Installation and Test Operation ...................................................................44

Service Manual
Table of Contents
9. Maintenance............................................................................................................45
9.1 Malfunction Display of Indoor Unit..................................................................................45
9.2 Procedure of Troubleshooting ........................................................................................47
9.3 Troubleshooting for Normal Malfunction.........................................................................64
10. Exploded View and Parts List ..............................................................66
10.1 Indoor Unit....................................................................................................................66
10.2 Outdoor Unit .................................................................................................................86
11. Removal Procedure.......................................................................................89
11.1 Removal Procedure of Indoor Unit ...............................................................................89
11.2 Removal Procedure of Outdoor Unit ............................................................................94
Appendix:......................................................................................................................101
Appendix 1: Reference Sheet of Celsius and Fahrenheit ..................................................101
Appendix 2: Conguration of Connection Pipe...................................................................101
Appendix 3: Pipe Expanding Method .................................................................................102
Appendix 4: List of Resistance for Temperature Sensor ....................................................103

1
Technical Information
Service Manual
1. Summary
Part Ⅰ: Technical Information
Indoor Unit
A1 panel
A2 panel
A5 panel
GWH18QD-K3DNA5G/I(CB425N03402/CB425N03400)
GWH24QE-K3DNA5G/I(CB425N03302)
A5 panel
GWH18QD-K3DNA5G/I(CB425N03403)
GWH24QE-K3DNA5G/I(CB425N03303)
B2 panel
B4 panel
A6 panel

2Technical Information
Service Manual
Outdoor Unit
GWH18QD-K3DNA1G/O
GWH24QE-K3DNA1G/O
Remote Controller
YAN1F1
B6 panel
B8 panel
C2 panel

3
Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Parameter Unit Value
Model
1.GWH18QD-K3DNA1G 2.GWH18QD-K3DNA5G
3.GWH18QD-K3DNA6G 4.GWH18QD-K3DNB4G
5.GWH18QD-K3DNB6G
Product Code
1.CB419005600 2.CB425003402 CB425003403
3.CB427004400 4.CB434002002
5.CB435000202
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) W 5130(1260~6600)
Heating Capacity(Min~Max) W 5275(1120~6800)
Cooling Power Input(Min~Max) W 1580(380~2450)
Heating Power Input(Min~Max) W 1410(350~2600)
Cooling Current Input A 7.0
Heating Current Input A 6.3
Rated Input W 2600
Rated Current A 11.5
Air Flow Volume(SH/H/M//L/SL) m3/h 800/720/610/520/-
Dehumidifying Volume L/h 1.8
EER W/W 3.25
COP W/W 3.74
SEER W/W 6.1
HSPF W/W /
Application Area m223-34
Indoor
Unit
Indoor Unit Model
1.GWH18QD-K3DNA1G/I 2.GWH18QD-K3DNA5G/I
3.GWH18QD-K3DNA6G/I 4.GWH18QD-K3DNB4G/I
5.GWH18QD-K3DNB6G/I
Indoor Unit Product Code
1.CB419N05600 2.CB425N03402 CB425N03403
3.CB427N04400 4.CB434N02002
5.CB435N00202
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Ф106X706
Cooling Speed(SH/H/M//L/SL) r/min 1230/1130/1030/900/-
Heating Speed(SH/H/M//L/SL) r/min 1250/1100/1000/900/-
Fan Motor Power Output W 35
Fan Motor RLA A 0.35
Fan Motor Capacitor μF 2.5
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф7
Evaporator Row-n Gap mm 2-1.4
Evaporator Coil Length (LXDXW) mm 715X25.4X304.8
Swing Motor Model MP35CJ
Swing Motor Power Output W 2.5
Fuse Current A 3.15
Sound Pressure Level(SH/H/M//L/SL) dB (A) 46/42/39/36/-
Sound Power Level(SH/H/M//L/SL) dB (A) 58/54/51/48/-
Dimension (WXHXD) mm 970X300X224
Dimension of Carton Box (LXWXH) mm 1038X380X305
Dimension of Package(LXWXH) mm 1041X383X320
Net Weight kg 13.5
Gross Weight kg 16.5

4Technical Information
Service Manual
Outdoor
Unit
Outdoor Unit Model GWH18QD-K3DNA1G/O
Outdoor Unit Product Code CB419W05600
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model QXA-B141zF030
Compressor Oil 68EP
Compressor Type Rotary
Compressor LRA. A 18
Compressor RLA A 7.5
Compressor Power Input W 1440
Compressor Overload Protector 1NT11L-6233 or KSD115ºC or HPC115/95U1
Throttling Method Capillary
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature
Range ºC -15~43
Heating Operation Ambient Temperature
Range ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
Condenser Rows-n Gap mm 2-1.4
Condenser Coil Length (LXDXW) mm 851X38.1X660
Fan Motor Speed rpm 750
Fan Motor Power Output W 60
Fan Motor RLA A /
Fan Motor Capacitor μF /
Outdoor Unit Air Flow Volume m3/h 3200
Fan Type Axial-ow
Fan Diameter mm Ф520
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) 56/-/-
Sound Power Level (H/M/L) dB (A) 63/-/-
Dimension(WXHXD) mm 963X700X396
Dimension of Carton Box (LXWXH) mm 1026X455X735
Dimension of Package(LXWXH) mm 1029X458X750
Net Weight kg 45
Gross Weight kg 49.5
Refrigerant R410A
Refrigerant Charge kg 1.3
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Ф6
Outer Diameter Gas Pipe mm Ф12
Max Distance Height m 10
Max Distance Length m 25
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice. Please refer to the nameplate of the unit.

5
Technical Information
Service Manual
Parameter Unit Value
Model
1.GWH18QD-K3DNA1G 2.GWH18QD-K3DNA2G
3.GWH18QD-K3DNA5G 4.GWH18QD-K3DNB2G
5.GWH18QD-K3DNB4G 6.GWH18QD-K3DNB6G
7.GWH18QD-K3DNB8G 8.GWH18QD-K3DNC2G
Product Code
1.CB419005601 2.CB426001401
3.CB425003401 4.CB432002301
5.CB434002001 6.CB435000201
7.CB438000501 8.CB439000201
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) W 5130(1260~6600)
Heating Capacity(Min~Max) W 5275(1120~6800)
Cooling Power Input(Min~Max) W 1580(380~2450)
Heating Power Input(Min~Max) W 1410(350~2600)
Cooling Current Input A 7.0
Heating Current Input A 6.3
Rated Input W 2600
Rated Current A 11.5
Air Flow Volume(SH/H/M//L/SL) m3/h 800/720/610/520/-
Dehumidifying Volume L/h 1.8
EER W/W 3.25
COP W/W 3.74
SEER W/W 6.1
HSPF W/W /
Application Area m223-34
Indoor
Unit
Indoor Unit Model
1.GWH18QD-K3DNA1G/I 2.GWH18QD-K3DNA2G/I
3.GWH18QD-K3DNA5G/I 4.GWH18QD-K3DNB2G/I
5.GWH18QD-K3DNB4G/I 6.GWH18QD-K3DNB6G/I
7.GWH18QD-K3DNB8G/I 8.GWH18QD-K3DNC2G/I
Indoor Unit Product Code
1.CB419N05601 2.CB426N01400
3.CB425N03400 4.CB432N02300
5.CB434N02000 6.CB435N00200
7.CB438N00500 8.CB439N00200
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Ф106X706
Cooling Speed(SH/H/M//L/SL) r/min 1230/1130/1030/900/-
Heating Speed(SH/H/M//L/SL) r/min 1250/1100/1000/900/-
Fan Motor Power Output W 35
Fan Motor RLA A 0.35
Fan Motor Capacitor μF 2.5
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф7
Evaporator Row-n Gap mm 2-1.4
Evaporator Coil Length (LXDXW) mm 715X25.4X304.8
Swing Motor Model MP35CJ
Swing Motor Power Output W 2.5
Fuse Current A 3.15
Sound Pressure Level(SH/H/M//L/SL) dB (A) 46/42/39/36/-
Sound Power Level(SH/H/M//L/SL) dB (A) 58/54/51/48/-
Dimension (WXHXD) mm 970X300X224
Dimension of Carton Box (LXWXH) mm 1038X380X305
Dimension of Package(LXWXH) mm 1041X383X320
Net Weight kg 13.5
Gross Weight kg 16.5

6Technical Information
Service Manual
Outdoor
Unit
Outdoor Unit Model GWH18QD-K3DNA1G/O
Outdoor Unit Product Code CB419W05601
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model QXA-B141zF030
Compressor Oil 68EP
Compressor Type Rotary
Compressor LRA. A 18
Compressor RLA A 7.5
Compressor Power Input W 1440
Compressor Overload Protector 1NT11L-6233 or KSD115ºC or HPC115/95U1
Throttling Method Capillary
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature
Range ºC -15~43
Heating Operation Ambient Temperature
Range ºC -20~24
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
Condenser Rows-n Gap mm 2-1.4
Condenser Coil Length (LXDXW) mm 851X38.1X660
Fan Motor Speed rpm 750
Fan Motor Power Output W 60
Fan Motor RLA A /
Fan Motor Capacitor μF /
Outdoor Unit Air Flow Volume m3/h 3200
Fan Type Axial-ow
Fan Diameter mm Ф520
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) 56/-/-
Sound Power Level (H/M/L) dB (A) 63/-/-
Dimension(WXHXD) mm 963X700X396
Dimension of Carton Box (LXWXH) mm 1026X455X735
Dimension of Package(LXWXH) mm 1029X458X750
Net Weight kg 45
Gross Weight kg 49.5
Refrigerant R410A
Refrigerant Charge kg 1.3
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Ф6
Outer Diameter Gas Pipe mm Ф12
Max Distance Height m 10
Max Distance Length m 25
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice. Please refer to the nameplate of the unit.

7
Technical Information
Service Manual
Parameter Unit Value
Model
1.GWH24QE-K3DNA1G 2.GWH24QE-K3DNA2G
3.GWH24QE-K3DNA5G 4.GWH24QE-K3DNA6G
5.GWH24QE-K3DNB4G 6.GWH24QE-K3DNB6G
Product Code
1.CB419005300 CB419005302 2.CB426001501
3.CB425003302 CB425003303 4.CB427004500
5.CB434002202 6.CB435000303
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) W 6700(2000~8200)
Heating Capacity(Min~Max) W 7250(2000~8500)
Cooling Power Input(Min~Max) W 1875(400~3700)
Heating Power Input(Min~Max) W 1945(450~3800)
Cooling Current Input A 8.32
Heating Current Input A 8.63
Rated Input W 3800
Rated Current A 16.86
Air Flow Volume(SH/H/M//L/SL) m3/h 1150/1000/900/800/-
Dehumidifying Volume L/h 2.1
EER W/W 3.57
COP W/W 3.73
SEER W/W 6.30
HSPF W/W /
Application Area m223-34
Indoor
Unit
Indoor Unit Model
1.GWH24QE-K3DNA1G/I 2.GWH24QE-K3DNA2G/I
3.GWH24QE-K3DNA5G/I 4.GWH24QE-K3DNA6G/I
5.GWH24QE-K3DNB4G/I 6.GWH24QE-K3DNB6G/I
Indoor Unit Product Code
2.CB419N05300 CB419N05302 2.CB426N01500
3.CB425N03302 CB425N03303 4.CB427N04500
5.CB434N02202 6.CB435N00303
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Φ108X830
Cooling Speed(SH/H/M//L/SL) r/min 1250/1000/900/800/-
Heating Speed(SH/H/M//L/SL) r/min 1250/1000/900/850/-
Fan Motor Power Output W 35
Fan Motor RLA A 0.35
Fan Motor Capacitor μF 3
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф7
Evaporator Row-n Gap mm 2-1.4
Evaporator Coil Length (LXDXW) mm 845X25.4X342.9
Swing Motor Model MP35CJ
Swing Motor Power Output W 2.5
Fuse Current A 3.15
Sound Pressure Level(SH/H/M//L/SL) dB (A) 48/45/42/39/-
Sound Power Level(SH/H/M//L/SL) dB (A) 64/59/56/53/-
Dimension (WXHXD) mm 1078X325X246
Dimension of Carton Box (LXWXH) mm 1145X410X335
Dimension of Package(LXWXH) mm 1148X413X350
Net Weight kg 17
Gross Weight kg 20.5