Gree GWH18YD-K6DNA2A User manual

GWH18YD-K6DNA1A
GWH18YD-K6DNA2A
(Refrigerant R32)
Service Manual
Change for life
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Models:

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 ........................................................................................5
2.3 Capacity Variation Ratio According to Temperature .........................................................5
2.4 Cooling and Heating Data Sheet in Rated Frequency .....................................................6
2.5 Noise Curve......................................................................................................................6
3. Outline Dimension Diagram.........................................................................................7
3.1 Indoor Unit........................................................................................................................7
3.2 Outdoor Unit .....................................................................................................................8
4. Refrigerant System Diagram......................................................................9
5. Electrical Part.........................................................................................................10
5.1 Wiring Diagram...............................................................................................................10
5.2 PCB Printed Diagram .....................................................................................................13
6. Function and Control......................................................................................15
6.1 Remote Controller Introduction .....................................................................................15
6.2 GREE+ App Operation Manual ......................................................................................20
6.3 Ewpe Smart App Operation Manual ...............................................................................21
6.4 Brief Description of Modes and Functions......................................................................22
Part Ⅱ: Installation and Maintenance .................................................31
7. Notes for Installation and Maintenance..........................................31
8. Installation................................................................................................................36
8.1 Installation Dimension Diagram......................................................................................36
8.2 Installation Parts-checking ............................................................................................38
8.3 Selection of Installation Location....................................................................................38
8.4 Electric Connection Requirement...................................................................................38
8.5 Installation of Indoor Unit................................................................................................38
8.6 Installation of Outdoor Unit.............................................................................................41
8.7 Vacuum Pumping and Leak Detection ...........................................................................42
8.8 Check after Installation and Test Operation ...................................................................43

Service Manual
Table of Contents
9. Maintenance............................................................................................................44
9.1 Error Code List ...............................................................................................................44
9.2 Troubleshooting for Main Malfunction ............................................................................48
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.......................................................................................68
11.1 Removal Procedure of Indoor Unit ...............................................................................68
11.2 Removal Procedure of Outdoor Unit ............................................................................73
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

1
Technical Information
Service Manual
1. Summary
Part Ⅰ: Technical Information
Indoor Unit
GWH18YD-K6DNA1A/I
GWH18YD-K6DNA2A/I
GWH18YD-K6DNA2A/I(CB466N01302)
Outdoor Unit
GWH18YD-K6DNA1A/O(CB437W01300)

2Technical Information
Service Manual
Remote Controller
GWH18YD-K6DNA1A/O(CB437W01301)
YAG1FB2(WiFi)
GWH18YD-K6DNA1A CB437001300
GWH18YD-K6DNA1A/O CB437W01300
YAG1FB2(WiFi)
GWH18YD-K6DNA2A CB466001303
GWH18YD-K6DNA2A CB466001300
GWH18YD-K6DNA1A CB437001301
GWH18YD-K6DNA1A/O CB437W01301GWH18YD-K6DNA2A CB466001301
GWH18YD-K6DNA2A CB466001302

3
Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Parameter Unit Value
Model GWH18YD-K6DNA1A
GWH18YD-K6DNA2A
GWH18YD-K6DNA1A
GWH18YD-K6DNA2A
Product Code CB437001300
CB466001300/CB466001303
CB437001301
CB466001301 CB466001302
Power
Supply
Rated Voltage V ～220~240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity(Min~Max) W 5300 5300
Heating Capacity(Min~Max) W 5570 5570
Cooling Power Input(Min~Max) W 1550 1550
Heating Power Input(Min~Max) W 1428 1428
Cooling Current Input A 6.9 6.9
Heating Current Input A 6.3 6.3
Rated Input W 2600 2600
Rated Current A / /
Air Flow Volume(SH/MH/H/M//ML/L/SL) m3/h 850/-/750/610/-/520/306 850/-/750/610/-/520/306
Dehumidifying Volume L/h 1.80 1.8
EER W/W 3.42 3.42
COP W/W 3.90 3.90
SEER W/W 7.60 7.6
SCOP (Average/Warmer/Colder) 4.10/5.20/3.40 4.10/5.20/3.40
HSPF W/W / /
Application Area m223-34 23-34
Indoor
Unit
Indoor Unit Model GWH18YD-K6DNA1A/I
GWH18YD-K6DNA2A/I
GWH18YD-K6DNA1A/I
GWH18YD-K6DNA2A/I
Indoor Unit Product Code CB437N01300
CB466N01300/CB466N01303
CB437N01301
CB466N01301 CB466N01302
Fan Type Cross-ow Cross-ow
Fan Diameter Length(DXL) mm Ф106X706 Ф106X706
Cooling Speed(SH/MH/H/M//ML/L/SL) r/min 1230/1170/1100/1020/960/880/800 1230/1170/1100/1020/960/880/800
Heating Speed(SH/MH/H/M//ML/L/SL) r/min 1400/1270/1200/1130/1050//980/900 1400/1270/1200/1130/1050//980/900
Fan Motor Power Output W 60 60
Fan Motor RLA A 0.24 0.24
Fan Motor Capacitor μF / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф7 Ф7
Evaporator Row-n Gap mm 2-1.4 2-1.4
Evaporator Coil Length (LXDXW) mm 715X25.4X304.8 715X25.4X304.8
Swing Motor Model MP35CJ/MP24HF MP35CJ/MP24HF
Swing Motor Power Output W 2.5/1.5 2.5/1.5
Fuse Current A 3.15 3.15
Sound Pressure Level(SH/H/MH/M/ML/L/
SL) dB (A) 49/45/43/41/39/37/34 49/45/43/41/39/37/34
Sound Power Level(SH/H/MH/M/ML/L/SL) dB (A) 58/55/53//51/49/47/44 58/55/53//51/49/47/44
Dimension (WXHXD) mm 996X301X225 996X301X225
Dimension of Carton Box (LXWXH) mm 1057X377X307 1057X377X307
Dimension of Package(LXWXH) mm 1060X380X322 1060X380X322
Net Weight kg 13.5 13.5
Gross Weight kg 16.5 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
Outdoor Unit Model GWH18YD-K6DNA1A/O GWH18YD-K6DNA1A/O(LCLH)
Outdoor Unit Product Code CB437W01300 CB437W01301
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR
CO.,LTD
ZHUHAI LANDA COMPRESSOR
CO.,LTD
Compressor Model QXF-B141zF030A QXF-B141zF030A
Compressor Oil FW68DA or equivalent FW68DA or equivalent
Compressor Type Rotary Rotary
Compressor LRA. A 25 25
Compressor RLA A 6.5 6.5
Compressor Power Input W 1410 1410
Compressor Overload Protector 1NT11L-6233 or KSD115ºC or
HPC115/95U1
1NT11L-6233 or KSD115ºC or
HPC115/95U1
Throttling Method Electronic Expansion Valve Electronic 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 -15~24 -22~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7 Φ7
Condenser Rows-n Gap mm 2-1.4 2-1.4
Condenser Coil Length (LXDXW) mm 851X38.1X660 851X38.1X660
Fan Motor Speed rpm 800 800
Fan Motor Power Output W 60 60
Fan Motor RLA A 0.24 0.24
Fan Motor Capacitor μF / /
Outdoor Unit Air Flow Volume m3/h 3200 3200
Fan Type Axial-ow Axial-ow
Fan Diameter mm Ф520 Ф520
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) 57/-/- 57/-/-
Sound Power Level (H/M/L) dB (A) 65/-/- 65/-/-
Dimension(WXHXD) mm 965X700X396 965X700X396
Dimension of Carton Box (LXWXH) mm 1026X455X735 1026X455X735
Dimension of Package(LXWXH) mm 1029X458X750 1029X458X750
Net Weight kg 45 45
Gross Weight kg 49.5 49.5
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 mm Ф6 Ф6
Outer Diameter Gas Pipe mm Ф12 Ф12
Max Distance Height m 10 10
Max Distance Length m 25 25
Note: The connection pipe applies metric diameter.

5
Technical Information
Service Manual
2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
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
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
Heating operation ambient temperature range is -15°C~24°C
Heating operation ambient temperature range is -22°C~24°C
Cooling Heating
32 33 34 35 36 37 38 39 43 –22 –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 (%)

6Technical Information
Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
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
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
27/19 35/24 18K 0.9 to 1.1 12 to 14 75 to 37 Super High High 68
Rated heating
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
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
20/- 7/6 18K 2.8 to 3.0 70 to 35 2 to 4 Super High High 63
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:
2.5 Noise Curve
Indoor side noise when blowingOutdoor side noise when blowing
50
52
54
56
58
60
62
64
15 30 45 60
Compressor frequency(Hz)
Noise dB(A)
Indoor fan motor rating speed
Noise/dB(A)
20
30
40
50
60
SHHMHMMLLSL

7
Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
79
154
43
216 685 200
Φ70 Φ70
43
117 685 194
140
190
38
Φ55 Φ55
38
Unit:mm
18K
W D
H
Models W H D
18K 996 301 225