Gree GWH18AAD-K6DNA1A/I User manual

Service Manual
Change for life
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

Service Manual
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
2.2 Capacity Curve in Different Outdoor Temperature .........................................................11
2.3 Cooling and Heating Data Sheet in Rated Frequency ................................................... 11
2.5 Noise Curve....................................................................................................................12
3. Outline Dimension Diagram......................................................................13
3.1 Indoor Unit......................................................................................................................13
3.2 Outdoor Unit ...................................................................................................................14
4. Refrigerant System Diagram....................................................................16
5. Electrical Part.........................................................................................................17
5.1 Wiring Diagram...............................................................................................................17
5.2 PCB Printed Diagram .....................................................................................................20
6. Function and Control......................................................................................23
6.1 Remote Controller Introduction .....................................................................................23
6.2 GREE+ App Operation Manual ......................................................................................27
6.3 Ewpe Smart App Operation Manual...............................................................................28
6.4 Brief Description of Modes and Functions......................................................................29
Part Ⅱ: Installation and Maintenance .................................................38
7. Notes for Installation and Maintenance..........................................38
8. Installation................................................................................................................42
8.1 Installation Dimension Diagram......................................................................................42
8.2 Installation Parts-checking ............................................................................................44
8.3 Selection of Installation Location....................................................................................44
8.4 Electric Connection Requirement...................................................................................44
8.5 Installation of Indoor Unit................................................................................................44
8.6 Installation of Outdoor unit .............................................................................................47
8.7 Vacuum Pumping and Leak Detection ...........................................................................48
8.8 Check after Installation and Test operation ....................................................................48
Table of Contents

Service Manual
9. Maintenance............................................................................................................49
9.1 Malfunction Display of Indoor Unit..................................................................................49
9.2 Procedure of Troubleshooting ........................................................................................51
9.3 Maintenance method for normal malfunction .................................................................68
10. Exploded View and Parts List ..............................................................70
10.1 Indoor Unit....................................................................................................................70
10.2 Outdoor Unit .................................................................................................................80
11. Removal Procedure.......................................................................................88
11.1 Removal Procedure of Indoor Unit ...............................................................................88
11.2 Removal Procedure of Outdoor Unit ............................................................................93
Appendix:......................................................................................................................113
Appendix 1: Reference Sheet of Celsius and Fahrenheit .................................................. 113
Appendix 2: Conguration of Connection Pipe................................................................... 113
Appendix 3: Pipe Expanding Method ................................................................................. 114
Appendix 4: List of Resistance for Temperature Sensor .................................................... 115
Table of Contents

1
Technical Information
Service Manual
1. Summary
Indoor Unit:
GWH18AAD-K6DNA1B/I
GWH18AAD-K6DNA1A/I
GWH24AAD-K6DNA1A/I
Part Ⅰ: Technical Information
Outdoor Unit:
GWH18AAD-K6DNA1A/O
GWH18AAD-K6DNA1B/O
GWH24AAD-K6DNA5A/I
GWH18AAD-K6DNA5A/I
GWH18AAD-K6DNA5B/I
GWH18AAD-K6DNA4A/I
GWH18AAD-K6DNA4B/I
GWH24AAE-K6DNA4C/I
GWH24AAD-K6DNA4A/I
GWH18AAD-K6DNA2A/I
GWH24AAD-K6DNA2A/I

2Technical Information
Service Manual
GWH24AAD-K6DNA1A/O
GWH24QE-K6DNA1C/O
Remote Controller:
YAW1F5(WiFi)
WiFi
Model List:
No Model Product code Indoor model Indoor product
code Outdoor model Outdoor product code
Remote
Controller
1GWH18AAD-K6DNA1A CB476000200 GWH18AAD-K6DNA1A/I CB476N00200
GWH18AAD-K6DNA1A/O CB476W00200
YAW1F5
(WiFi)
2GWH18AAD-K6DNA1A CB476000201 GWH18AAD-K6DNA1A/I CB476N00201
3GWH18AAD-K6DNA5A CB488000700 GWH18AAD-K6DNA5A/I CB488N00700
4GWH18AAD-K6DNA2A CB477001300 GWH18AAD-K6DNA2A/I CB477N01300
5GWH18AAD-K6DNA4A CB479000600 GWH18AAD-K6DNA4A/I CB479N00600
GWH24AAD-K6DNA1A/O CB476W00100
6GWH24AAD-K6DNA1A CB476000100 GWH24AAD-K6DNA1A/I CB476N00100
7GWH24AAD-K6DNA1A CB476000101 GWH24AAD-K6DNA1A/I CB476N00101
8GWH24AAD-K6DNA5A CB488000500 GWH24AAD-K6DNA5A/I CB488N00500
9GWH24AAD-K6DNA4A CB479000900 GWH24AAD-K6DNA4A/I CB479N00900
10 GWH24AAD-K6DNA4A CB479000901 GWH24AAD-K6DNA4A/I CB479N00901
11 GWH24AAD-K6DNA5A CB488000501 GWH24AAD-K6DNA5A/I CB488N00501
12 GWH24AAD-K6DNA2A CB477001400 GWH24AAD-K6DNA2A/I CB477N01400
13 GWH18AAD-K6DNA1B CB476000600 GWH18AAD-K6DNA1B/I CB476N00600
GWH18AAD-K6DNA1B/O CB476W00600
14 GWH18AAD-K6DNA5B CB488000600 GWH18AAD-K6DNA5B/I CB488N00600
15 GWH18AAD-K6DNA4B CB479001300 GWH18AAD-K6DNA4B/I CB479N01300
16 GWH18AAD-K6DNA4B CB479001301 GWH18AAD-K6DNA4B/I CB479N013001
17 GWH18AAD-K6DNA5B CB488000601 GWH18AAD-K6DNA5B/I CB488N00601
18 GWH24AAE-K6DNA4C CB479000700 GWH24AAE-K6DNA4C/I CB479N00700 GWH24QE-K6DNA1C/O CB419W12200

3
Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model 1.GWH18AAD-K6DNA1A 2.GWH18AAD-K6DNA5A
3.GWH18AAD-K6DNA4A 4.GWH18AAD-K6DNA2A
Product Code 1.CB476000200/CB476000201 2. CB488000700
3.CB479000600 4.CB477001300
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 5130
Heating Capacity W 5280
Cooling Power Input W 1600
Heating Power Input W 1450
Cooling Power Current A 7.0
Heating Power Current A 6.3
Rated Input W 2300
Rated Current A 10.8
Rated Heating Current A 12
Air Flow Volume(SH/H/M/L/SL) m3/h 850/720/610/520/-
Dehumidifying Volume L/h 1.8
EER W/W 3.21
COP W/W 3.64
SEER W/W 6.1
HSPF W/W /
Application Area m223-34
Indoor Unit
Model of Indoor Unit 1.GWH18AAD-K6DNA1A/I 2.GWH18AAD-K6DNA5A/I
3. GWH18AAD-K6DNA4A/I 4.GWH18AAD-K6DNA2A/I
Product Code of Indoor Unit 1.CB476N00200/CB476N00201 2.CB488N00700
3.CB479N00600 4. CB477N01300
Fan Type Cross-ow
Diameter Length(DXL) mm Φ106X706
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1230/1130/1030/800/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1350/1200/1050/900/-
Output of Fan Motor W 35
Fan Motor RLA A 0.35
Fan Motor Capacitor μF 2.5
Input of Heater W/
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Ф7
Row-n Gap mm 2-1.4
Coil Length (LXDXW) mm 715X25.4X304.8
Swing Motor Model MP35CP
Output of Swing Motor W 2.5
Fuse A 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 48/44/39/34/-
Sound Power Level (SH/H/M/L/SL) dB (A) 58/54/49/44/-
Dimension (WXHXD) mm 970X300X225
Dimension of Carton Box (LXWXH) mm 1017X366X285
Dimension of Package (LXWXH) mm 1020X369X295
Net Weight kg 13.5
Gross Weight kg 16.5

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 GWH18AAD-K6DNA1A/O
Product Code of Outdoor Unit CB476W00200
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model QXF-B141ZF030A
Compressor Oil 68DA
Compressor Type Rotary
L.R.A. A 25
Compressor RLA A 6.5
Compressor Power Input W 1410
Overload Protector 1NT11L-6233/KSD115oC/HPC 115/95
Throttling Method Electron expansion valve
Operation Temp oC16~30
Ambient Temp (Cooling) oC -15~43
Ambient Temp (Heating) oC -15~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7.94
Rows-n Gap mm 2-1.4
Coil Length (LXDXW) mm 742X38.1X550
Fan Motor Speed rpm 780
Output of Fan Motor W 40
Fan Motor RLA A0.62
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 2400
Fan Type Axial-ow
Fan Diameter mm Φ445
Defrosting Method /
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) 56/-/-
Sound Power Level (H/M/L) dB (A) 66/-/-
Dimension (WXHXD) mm 899X596X378
Dimension of Carton Box (LXWXH) mm 945X417X630
Dimension of Package (LXWXH) mm 948X420X645
Net Weight kg 39
Gross Weight kg 42
Refrigerant R32
Refrigerant Charge kg 0.9
Connection
Pipe
Length m 5
Gas Additional Charge g/m 16
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ12
Max Distance Height m 10
Max Distance Length m 25
Note: The connection pipe applies metric diameter.

5
Technical Information
Service Manual
Model
1.GWH24AAD-K6DNA1A 2.GWH24AAD-K6DNA5A
3.GWH24AAD-K6DNA4A 4.GWH24AAD-K6DNA5A
5.GWH24AAD-K6DNA2A
Product Code
1.CB476000100/CB476000101
2.CB488000500 3.CB479000900/CB479000901
4.CB488000501 5.CB477001400
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 6155
Heating Capacity W 6448
Cooling Power Input W 1760
Heating Power Input W 1860
Cooling Power Current A 7.7
Heating Power Current A 8.1
Rated Input W 2600
Rated Current A 10.9
Rated Heating Current A 11.3
Air Flow Volume(SH/H/M/L/SL) m3/h 850/720/610/520/-
Dehumidifying Volume L/h 1.8
EER W/W 3.5
COP W/W 3.47
SEER W/W 6.1
HSPF W/W /
Application Area m223-24
Indoor Unit
Model of Indoor Unit
1.GWH24AAD-K6DNA1A/I 2.GWH24AAD-K6DNA5A/I
3.GWH24AAD-K6DNA4A/I 4.GWH24AAD-K6DNA5A/I
5.GWH24AAD-K6DNA2A/I
Product Code of Indoor Unit
1.CB476N00100/CB476N00101
2.CB488N00500 3.CB479N00900/CB479N00901
4.CB488N00501 5.CB477N01400
Fan Type Cross-ow
Diameter Length(DXL) mm Φ106X706
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1230/1130/1030/800/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1350/1200/1050/900/-
Output of Fan Motor W 35
Fan Motor RLA A 0.35
Fan Motor Capacitor μF 2.5
Input of Heater W/
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Ф7
Row-n Gap mm 2-1.4
Coil Length (LXDXW) mm 715X25.4X304.8
Swing Motor Model MP35CP
Output of Swing Motor W 2.5
Fuse A 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 48/44/40/34/-
Sound Power Level (SH/H/M/L/SL) dB (A) 58/54/50/44/-
Dimension (WXHXD) mm 970X300X225
Dimension of Carton Box (LXWXH) mm 1017X366X285
Dimension of Package (LXWXH) mm 1020X369X295
Net Weight kg 13.5
Gross Weight kg 16.5

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 GWH24AAD-K6DNA1A/O
Product Code of Outdoor Unit CB476W00100
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model QXF-B141ZF030A
Compressor Oil 68DA
Compressor Type Rotary
L.R.A. A 25
Compressor RLA A 6.5
Compressor Power Input W 1410
Overload Protector 1NT11L-6233/KSD115oC/HPC 115/95
Throttling Method Electron expansion valve
Operation Temp oC16~30
Ambient Temp (Cooling) oC -15~43
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 935X38.1X660
Fan Motor Speed rpm 780
Output of Fan Motor W 60
Fan Motor RLA A0.49
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 3200
Fan Type Axial-ow
Fan Diameter mm Φ520
Defrosting Method /
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) 57/-/-
Sound Power Level (H/M/L) dB (A) 67/-/-
Dimension (WXHXD) mm 955X700X396
Dimension of Carton Box (LXWXH) mm 1026X455X735
Dimension of Package (LXWXH) mm 1029X458X750
Net Weight kg 49
Gross Weight kg 50.5
Refrigerant R32
Refrigerant Charge kg 1.3
Connection
Pipe
Length m 5
Gas Additional Charge g/m 40
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ16
Max Distance Height m 10
Max Distance Length m 25
Note: The connection pipe applies metric diameter.

7
Technical Information
Service Manual
Model 1.GWH18AAD-K6DNA1B 2.GWH18AAD-K6DNA5B
3.GWH18AAD-K6DNA4B
Product Code 1.CB476000600 2.CB488000600/CB488000601
3.CB479001300/CB479001301
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 4600
Heating Capacity W 5200
Cooling Power Input W 1430
Heating Power Input W 1400
Cooling Power Current A 6.3
Heating Power Current A 6.2
Rated Input W 1700
Rated Current A 8
Rated Heating Current A 7.5
Air Flow Volume(SH/H/M/L/SL) m3/h 850/720/610/520/-
Dehumidifying Volume L/h 1.8
EER W/W 3.22
COP W/W 3.71
SEER W/W 6.1
HSPF W/W /
Application Area m221-31
Indoor Unit
Model of Indoor Unit 1.GWH18AAD-K6DNA1B/I 2.GWH18AAD-K6DNA5B/I
3.GWH18AAD-K6DNA4B/I
Product Code of Indoor Unit 1.CB476N00600 2.CB488N00600/CB488N00601
3.CB479N01300/CB479N01301
Fan Type Cross-ow
Diameter Length(DXL) mm Ф106X706
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1230/1130/1030/800/-
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1350/1200/1050/900/-
Output of Fan Motor W/
Fan Motor RLA A 0.35
Fan Motor Capacitor μF 2.5
Input of Heater W/
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Ф7
Row-n Gap mm 2-1.4
Coil Length (LXDXW) mm 715X25.4X304.8
Swing Motor Model MP35CP
Output of Swing Motor W 2.5
Fuse A 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 49/45/41/36/-
Sound Power Level (SH/H/M/L/SL) dB (A) 58/55/51/46/-
Dimension (WXHXD) mm 970X300X225
Dimension of Carton Box (LXWXH) mm 1017X366X285
Dimension of Package (LXWXH) mm 1020X369X295
Net Weight kg 13.5
Gross Weight kg 16.5

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 GWH18AAD-K6DNA1B/O
Product Code of Outdoor Unit CB476W00600
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD
Compressor Model QXF-B096zE190A
Compressor Oil FW68DA
Compressor Type Rotary
L.R.A. A 20
Compressor RLA A 4.21
Compressor Power Input W 943
Overload Protector /
Throttling Method Capillary
Operation Temp oC16~30
Ambient Temp (Cooling) oC -15~43
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 742X38.1X550
Fan Motor Speed rpm 900
Output of Fan Motor W 30
Fan Motor RLA A 0.4
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 2200
Fan Type Axial-ow
Fan Diameter mm Φ438
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) 54/-/-
Sound Power Level (H/M/L) dB (A) 64/-/-
Dimension (WXHXD) mm 848X596X320
Dimension of Carton Box (LXWXH) mm 878X360X630
Dimension of Package (LXWXH) mm 881X363X645
Net Weight kg 34
Gross Weight kg 37
Refrigerant R32
Refrigerant Charge kg 0.77
Connection
Pipe
Length m 5
Gas Additional Charge g/m 16
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ9.52
Max Distance Height m 10
Max Distance Length m 20
Note: The connection pipe applies metric diameter.

9
Technical Information
Service Manual
Parameter Unit Value
Model GWH24AAE-K6DNA4C
Product Code CB479000700
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 6450
Heating Capacity W 6450
Cooling Power Input W 1950
Heating Power Input W 1735
Cooling Current Input A 8.4
Heating Current Input A 8.0
Rated Input W 3100
Rated Current A 13.04
Air Flow Volume(SH/H/M//L/SL) m3/h 1250/1050/950/850/-
Dehumidifying Volume L/h 2.0
EER W/W 3.3
COP W/W 3.71
SEER W/W 6.30
SCOP(Average/Warmer/Colder) W/W 4.0/5.1/3.3
Application Area m223-34
Indoor
Unit
Indoor Unit Model GWH24AAE-K6DNA4C/I
Indoor Unit Product Code CB479N00700
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) 49/44/41/39/-
Sound Power Level(SH/H/M//L/SL) dB (A) 63/59/56/53/-
Dimension (WXHXD) mm 1078X325X246
Dimension of Carton Box (LXWXH) mm 1145X410X335
Dimension of Package(LXWXH) mm 1148X413X350
Net Weight kg 16.5
Gross Weight kg 20

10 Technical Information
Service Manual
Outdoor
Unit
Outdoor Unit Model GWH24QE-K6DNA1C/O
Outdoor Unit Product Code CB419W12200
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO,LTD.
Compressor Model QXFS-D23zX090A
Compressor Oil FW68DA
Compressor Type Rotary
Compressor LRA. A 25
Compressor RLA A 11.50
Compressor Power Input W 2400
Compressor Overload Protector 1NT11L-6233 or HPC115/95/ or KSD115ºC
Throttling Method Electron expansion valve
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 935X38.1X660
Fan Motor Speed rpm 800
Fan Motor Power Output W 60
Fan Motor RLA A 0.58
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 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) 68/-/-
Dimension(WXHXD) mm 963X700X396
Dimension of Carton Box (LXWXH) mm 1026X455X735
Dimension of Package(LXWXH) mm 1029X458X750
Net Weight kg 52.5
Gross Weight kg 57
Refrigerant R32
Refrigerant Charge kg 1.7
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 50
Outer Diameter Liquid Pipe mm Ф6
Outer Diameter Gas Pipe mm Ф16
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.

11
Technical Information
Service Manual
2.2 Capacity Curve in Different Outdoor Temperature
2.3 Cooling and Heating Data Sheet in Rated Frequency
Heating
Rated heatling 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 18/24K 3.5~3.8 in:75~85
out:37~43
in:1~3
out:2~5 Super High High
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 18/24K 0.8~1.0 in:8~11
out:11~14
in:75~85
out:37~43 Super High High
Cooling
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.
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
2.2 Operation Characteristic Curve
01020304050607090010 20 30 40 50 60 70 80 90 100 120110
80
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
220V
230V
240V
220V
230V
240V
01020304050607090010 20 30 40 50 60 70 80 90 100
120
110
80
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
220V
230V
240V
220V
230V
240V
Conditions
Indoor: DB27°C/WB19°C
Outdoor: DB35°C/WB24°C
Indoor air flow: High
Pipe length: 5m
Conditions
Indoor: DB27°C/WB19°C
Outdoor: DB35°C/WB24°C
Indoor air flow: High
Pipe length: 5m
Conditions
Indoor: DB20°C/WB15°C
Outdoor: DB7°C/WB6°C
Indoor air flow: High
Pipe length: 5m
Conditions
Indoor: DB20°C/WB15°C
Outdoor: DB7°C/WB6°C
Indoor air flow: High
Pipe length: 5m
Cooling Heating

12 Technical Information
Service Manual
2.5 Noise Curve
Indoor side noise
60
50
40
30
20
10
0
Indoor Fan Motor Rotating Speed
Noice/dB(A)
low Middle High Super High
Outdoor side noise
Compressor frequency/Hz
Noise/dB(A)
70
60
50
40
30
02040608
01
00
20
24KGWH18AAD-K6DNA1B GWH18AAD-K6DNA1A

13
Technical Information
Service Manual
104 685 181
140
190
38
Φ55 Φ55
38
79
154
43
206 685 187
Φ70 Φ70
43
24AAE
18/24AAD
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:mm
Model WH D
18/24AAD 970 300 225
24AAE 1078 325 246

14 Technical Information
Service Manual
3.2 Outdoor Unit
899
818
596
378
303
343
550
Unit:mm
Unit:mm
897
560
955 340
396
364
700
GWH18AAD-K6DNA1A/O
24K

15
Technical Information
Service Manual
GWH18AAD-K6DNA1B/O
GWH24QE-K6DNA1C/O
257
780
596
848
286
540
320
257
340
963
700
396
890
560
364
Unit:mm
Unit:mm

16 Technical Information
Service Manual
4. Refrigerant System Diagram
Connection pipe specication:
Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm) GWH18AAD-K6DNA1B GWH18AAD-K6DNA5B GWH18AAD-K6DNA4B
Gas pipe:1/2" (12mm) 18K except GWH18AAD-K6DNA1B GWH18AAD-K6DNA5B GWH18AAD-K6DNA4B
Gas pipe:5/8" (16mm) 24K
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 Electric
expand
valve
Strainer
Compressor
Accumlator
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 CapillaryStrainer
Accumlator
Compressor
GWH18AAD-K6DNA1A GWH18AAD-K6DNA5A GWH18AAD-K6DNA4A GWH18AAD-K6DNA2A
GWH24AAD-K6DNA1A GWH24AAD-K6DNA5A GWH24AAD-K6DNA4A GWH24AAD-K6DNA5A
GWH24AAD-K6DNA2A GWH24AAE-K6DNA4C
GWH18AAD-K6DNA1B GWH18AAD-K6DNA5B GWH18AAD-K6DNA4B GWH18AAD-K6DNA5B

17
Technical Information
Service Manual
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 / /
5. Electrical Part
5.1 Wiring Diagram
● Indoor Unit
●Instruction
Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.
60000700068802
76(1625
7(03
6(1625
7(03
6(1625
57
522078%(
67(33,1*
',63/$<
35,17('&,5&8,7%2$5'
5(&(,9(5$1'
',63/$<%2$5'
&$%/(
&211(&7,1*
6:,1*8'
02725
%/2&.
7(50,1$/
$3
-803
&$3 %8
%.
<(*1
(9$325$725
3(
;7

1
0
287'22581,7
$3
3*
*(1(5$725
&2/'3/$60$
)$102725
0 5' %8
+($/7+1
+($/7+/
3*)
',63 ',63
%1
<(*1
57
1
&20287
$&/
%8
%.
%1
/
/
:,),
02'8/(
:,),
$3


0$*1(7,&
5,1*
All models is except:GWH24AAE-K6DNA4C/I GWH18AAD-K6DNA1A/I(CB476N00201)
GWH24AAD-K6DNA1A/I(CB476N00101) GWH18AAD-K6DNA5B/I GWH24AAD-K6DNA5A/I
GWH24AAD-K6DNA4A/I GWH18AAD-K6DNA2A/I GWH24AAD-K6DNA2A/I
GWH18AAD-K6DNA4B/I(CB479N01301)