Gree GWH12YD-S6DBA1A User manual

Service Manual
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GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Models: GWH12YD-S6DBA1A
GWH12YD-S6DBA2A
(Refrigerant:R32)

Service Manual
Table of Contents
Part Ⅰ: Technical Information.......................................................................1
1. Summary......................................................................................................................1
2. Specications..........................................................................................................2
2.1 Specication Sheet...........................................................................................................2
2.2 Operation Characteristic Curve ........................................................................................4
2.3 Capacity Variation Ratio According to Temperature .........................................................4
2.4 Cooling and Heating Data Sheet in Rated Frequency .....................................................5
2.5 Noise Curve......................................................................................................................5
3. Outline Dimension Diagram........................................................................6
3.1 Indoor Unit........................................................................................................................6
3.2 Outdoor Unit .....................................................................................................................7
4. Refrigerant System Diagram......................................................................8
5. Electrical Part...........................................................................................................9
5.1 Wiring Diagram.................................................................................................................9
5.2 PCB Printed Diagram .....................................................................................................11
6. Function and Control......................................................................................13
6.1 Remote Controller Introduction .....................................................................................13
6.2 GREE+ App Operation Manual ......................................................................................18
6.3 Ewpe Smart App Operation Manual ...............................................................................19
Part Ⅱ: Installation and Maintenance .................................................20
7. Notes for Installation and Maintenance..........................................20
8. Installation................................................................................................................24
8.1 Installation Dimension Diagram......................................................................................24
8.2 Installation Parts-checking ............................................................................................26
8.3 Selection of Installation Location....................................................................................26
8.4 Electric Connection Requirement...................................................................................26
8.5 Installation of Indoor Unit................................................................................................26
8.6 Installation of Outdoor Unit.............................................................................................29
8.7 Vacuum Pumping and Leak Detection ...........................................................................30
8.8 Check after Installation and Test Operation ...................................................................30
Table of Contents

Service Manual
9. Maintenance............................................................................................................31
9.1 Error Code List ...............................................................................................................31
9.2 Procedure of Troubleshooting ........................................................................................38
9.3 Maintenance Method for Normal Malfunction.................................................................52
10. Exploded View and Parts List ..............................................................54
10.1 Indoor Unit....................................................................................................................54
10.2 Outdoor Unit .................................................................................................................56
11. Removal Procedure.......................................................................................58
11.1 Removal Procedure of Indoor Unit ...............................................................................58
11.2 Removal Procedure of Outdoor Unit ............................................................................63
Appendix:........................................................................................................................68
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................68
Appendix 2: Conguration of Connection Pipe.....................................................................68
Appendix 3: Pipe Expanding Method ...................................................................................69
Appendix 4: List of Resistance for Temperature Sensor ......................................................70
Table of Contents

1
Technical Information
Service Manual
1. Summary
Indoor Unit:
Part Ⅰ: Technical Information
GWH12YD-S6DBA1A/I
GWH12YD-S6DBA2A/I
Outdoor Unit:
Remote Controller:
YAG1FB3(WiFi)
GWH12YD-S6DBA2A/O
Model List:
No Model Product code Indoor model Indoor product code Outdoor model Outdoor product code
1GWH12YD-S6DBA1A CB437003001 GWH12YD-S6DBA1A/I CB437N03001 GWH12YD-S6DBA2A/O CB466W00200
2GWH12YD-S6DBA2A CB466000204 GWH12YD-S6DBA2A/I CB466N00204

2Technical Information
Service Manual
Model GWH12YD-S6DBA1A
GWH12YD-S6DBA2A
Product Code CB437003001
CB466000204
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50/60
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 3530
Heating Capacity W 4200
Cooling Power Input W 840
Heating Power Input W 950
Cooling Power Current A 5.10
Heating Power Current A 5.70
Rated Input W 2600
Rated Current A 12
Air Flow Volume(SH/H/MH/M/ML/L/SL) m3/h 800/730/680/630/580/530/430
Dehumidifying Volume L/h 1.40
EER W/W 4.20
COP W/W 4.42
SEER W/W 8.50
HSPF W/W /
Application Area m216-24
Indoor Unit
Model of indoor unit GWH12YD-S6DBA1A/I
GWH12YD-S6DBA2A/I
Indoor Unit Product Code CB437N03001
CB466N00204
Fan Type Cross-ow
Diameter Length(DXL) mm Φ106X706
Fan Motor Cooling Speed r/min 1200/1100/1030/960/890/820/750/500
Fan Motor Heating Speed r/min 1300/1200/1120/1040/960/880/800/-
Output of Fan Motor W 60
Fan Motor RLA A 0.09
Fan Motor Capacitor μF /
Input of Heater W /
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 2-1.4
Coil Length (LXDXW) mm 715X25.4X304.8
Swing Motor Model MP35CJ/MP24HF
Output of Swing Motor W 2.5/1.5
Fuse A 3.15
Sound Pressure Level (SH/H/MH/M/ML/L/
SL) dB (A) 46/43/41/38/36/34/21
Sound Power Level (SH/H/MH/M/ML/L/SL) dB (A) 58/55/53/50/48/46/33
Dimension (WXHXD) mm 996X301X225
Dimension of Carton Box (LXWXH) mm 1057X377X307
Dimension of Package (LXWXH) mm 1060X380X322
Net Weight kg 13.5
Gross Weight kg 16.5
2. Specications
2.1 Specication Sheet

3
Technical Information
Service Manual
Outdoor Unit
Model of Outdoor Unit GWH12YD-S6DBA2A/O
Outdoor Unit Product Code CB466W00200
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD
Compressor Model QXFT-B123zE170A
Compressor Oil FW68DA/equivalent
Compressor Type Rotary
L.R.A. A 35
Compressor RLA A 7.9
Compressor Power Input W 1230
Overload Protector /
Throttling Method Electron expansion valve
Operation Temp oC 8~30
Ambient Temp (Cooling) oC -18~54
Ambient Temp (Heating) oC -30~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Ф7.94
Rows-n Gap mm 2.5-1.4
Coil Length (LXDXW) mm 783X57X550
Fan Motor Speed rpm 850
Output of Fan Motor W 30
Fan Motor RLA A 0.24
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 2400
Fan Type Axial-ow
Fan Diameter mm Ф438
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) 62/-/-
Dimension (WXHXD) mm 899X596X378
Dimension of Carton Box (LXWXH) mm 945X417X630
Dimension of Package (LXWXH) mm 948X420X645
Net Weight kg 45.5
Gross Weight kg 48.5
Refrigerant R32
Refrigerant Charge kg 1
Connection
Pipe
Length m 5
Gas Additional Charge g/m 16
Outer Diameter Liquid Pipe mm Ф6
Outer Diameter Gas Pipe mm Ф9.52
Max Distance Height m 20
Max Distance Length m 40
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice; please refer to the nameplate of the unit.

4Technical Information
Service Manual
2.2 Operation Characteristic Curve
Cooling Heating
Cooling Heating
24K
0
2
4
6
8
10
12
14
020406080100 120
0
2
4
6
8
10
12
14
020406080 100
120
Condition
Indoor:DB27°C
WB19 °C
Indoor air flow: Super High
Pipe length:5m
Condition
Indoor:DB 20°C
Indoor air flow: Super High
Pipe length:5m
Compressor Frequency(Hz) Compressor Frequency(Hz)
Current(A)
Current(A)
2.3 Capacity Variation Ratio According to Temperature
Cooling
Heating
Capacity ratio(%)
Outdoor temp(°C)
-30
200
180
160
140
120
100
80
60
40
20
0
-25 -20 -15 -10 -5 05 710
Capacity ratio(%)
Outdoor temp. (°C)
51494745434139373533312927252321
110
100
90
80
70
60
50
53
Condition
Indoor:DB 27°C WB19°C
Indoor air flow: Super High
Pipe length:5m

5
Technical 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
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
27/19 35/24 12K 0.9 to 1.1 12 to 14 75 to 37 Super High High
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
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
20/- 7/6 12K 2.8 to 3.0 70 to 35 2 to 4 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.
Cooling:
Heating:
2.5 Noise Curve
Outdoor side noise when blowing
Compressor frequency(Hz)
35
40
45
50
55
60
65
70
75
Noise dB(A)
20 30 40 50 60 70 80 90
25
30
33
20
36
39
42
45
Noise dB(A)
H SHMLMLMHSL
Indoor fan motor rotating speed
Indoor side noise

6Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:mm
Model W H D
12K 996 301 225
WD
H
117 685 194
140
190
38
Φ55 Φ55
38

7
Technical Information
Service Manual
3.2 Outdoor Unit
Unit:mm
596
354
899
303838
378
550