Gree GWH07QA-K3DNA2C User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
GWH07QA-K3DNA2C
GWH07QA-K3DNA5C
GWH07QA-K3DNA6C
GWH07QA-K3DNB2C
GWH07QA-K3DNB4C
GWH07QA-K3DNB6C
GWH07QA-K3DNB8C
GWH07QA-K3DNC4C
(Refrigerant:R410A)
Models:

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 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 Brief Description of Modes and Functions......................................................................16
Part Ⅱ: Installation and Maintenance .................................................21
7. Notes for Installation and Maintenance..........................................21
8. Installation................................................................................................................23
8.1 Installation Dimension Diagram......................................................................................23
8.2 Installation Parts-checking ............................................................................................25
8.3 Selection of Installation Location....................................................................................25
8.4 Electric Connection Requirement...................................................................................25
8.5 Installation of Indoor Unit................................................................................................25
8.6 Installation of Outdoor Unit.............................................................................................28
8.7 Vacuum Pumping and Leak Detection ...........................................................................29
8.8 Check after Installation and Test Operation ...................................................................29

Service Manual
Table of Contents Table of Contents
9. Maintenance............................................................................................................30
9.1 Malfunction Analysis.......................................................................................................30
9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement ......................................34
9.3 How to Check Simply the Main Part...............................................................................43
10. Exploded View and Parts List ..............................................................56
10.1 Indoor Unit....................................................................................................................56
10.2 Outdoor Unit .................................................................................................................62
11. Removal Procedure.......................................................................................64
11.1 Removal Procedure of Indoor Unit ...............................................................................64
11.2 Removal Procedure of Outdoor Unit ............................................................................69
Appendix:........................................................................................................................74
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................74
Appendix 2: Conguration of Connection Pipe.....................................................................74
Appendix 3: Pipe Expanding Method ...................................................................................75
Appendix 4: List of Resistance for Temperature Sensor ......................................................76

1
Technical Information
Service Manual
1. Summary
Part Ⅰ: Technical Information
Indoor Unit:
A2 Panel A5 Panel
A6 Panel
B4 Panel
B8 Panel C4 Panel
B6 Panel
B2 Panel
Outdoor Unit:
GWH07QA-K3DNA5C/O
Remote Controller:
YX1F
ON/OFF MODE
FANSWING
SLEEPTIMER
+
-
AUTO
COOL
DRY
FAN
HEAT
T-ON T-OFF
SWING
SLEEP
LOCK
SPEED

2Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model
1.GWH07QA-K3DNA2C 2.GWH07QA-K3DNA5C
3.GWH07QA-K3DNA6C 4.GWH07QA-K3DNB2C
5.GWH07QA-K3DNB4C 6.GWH07QA-K3DNB6C
7.GWH07QA-K3DNB8C 8.GWH07QA-K3DNC4C
Product Code
1.CB426004500 2.CB425005400 /CB425005401
3.CB427006600 4.CB432006200
5.CB434004700 6.CB435005500
7.CB438004200 8.CB444003000
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 2200
Heating Capacity W 2300
Cooling Power Input W685
Heating Power Input W637
Cooling Current Input A3.6
Heating Current Input A3.5
Rated Input W1400
Rated Current A6.7
Air Flow Volume(SH/H/M/L/SL) m3/h 500/420/390/300/-
Dehumidifying Volume L/h 0.8
EER W/W 3.21
COP W/W 3.61
SEER 5.1
HSPF /
Application Area m212-18
Indoor
Unit
Indoor Unit Model
1.GWH07QA-K3DNA2C/I 2.GWH07QA-K3DNA5C/I
3.GWH07QA-K3DNA6C/I 4.GWH07QA-K3DNB2C/I
5.GWH07QA-K3DNB4C/I 6.GWH07QA-K3DNB6C/I
7.GWH07QA-K3DNB8C/I 8.GWH07QA-K3DNC4C/I
Indoor Unit Product Code
1.CB426N04500 2.CB425N05400/CB425N05401
3.CB427N06600 4.CB432N06200
5.CB434N04700 6.CB435N05500
7.CB438N04200 8.CB444N03000
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Ф98X507
Cooling Speed(SH/H/M/L/SL) r/min 1300/1200/1000/800/-
Heating Speed(SH/H/M/L/SL) r/min 1300/1200/1000/900/-
Fan Motor Power Output W10
Fan Motor RLA A0.215
Fan Motor Capacitor μF 1
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ5
Evaporator Row-n Gap mm 2-1.4
Evaporator Coil Length(LXDXW) mm 584X22.8X266.7
Swing Motor Model MP24AA
Swing Motor Power Output W1.5
Fuse Current A3.15
Sound Pressure Level(SH/H/M/L/SL) dB (A) 40/36/34/29/-
Sound Power Level(SH/H/M/L/SL) dB (A) 52/47/44/39/-
Dimension(WXHXD) mm 713X270X195
Dimension of Carton Box(LXWXH) mm 773X265X347
Dimension of Package(LXWXH) mm 776X268X362
Net Weight kg 8.5
Gross Weight kg 10

3
Technical Information
Service Manual
Outdoor
Unit
Model of Outdoor Unit GWH07QA-K3DNA5C/O
Product Code of Outdoor Unit CB425W05400
Compressor Manufacturer/Trademark Shanghai Hitachi Electrical Appliances Co.,Ltd
Compressor Model ASA725SPMA6JK
Compressor Oil Α68HES-H or equivaquent 260±20ml
Compressor Type Rotary
L.R.A. A 14.50
Compressor RLA A 2.71
Compressor Power Input W 582
Overload Protector /
Throttling Method Capillary
Operation temp oC 16~30
Ambient temp (cooling) oC -15~48
Ambient temp (heating) oC -22~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7.94
Rows-n Gap mm 1-1.4
Coil Length (LXDXW) mm 647X12.7X400
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 1200
Fan Type Axial-ow
Fan Diameter mm Φ320
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) 51/-/-
Sound Power Level (H/M/L) dB (A) 60/-/-
Dimension (WXHXD) mm 720X428X310
Dimension of Carton Box (LXWXH) mm 765X350X475
Dimension of Package (LXWXH) mm 768X353X490
Net Weight kg 21.5
Gross Weight kg 23.5
Refrigerant R410A
Refrigerant Charge kg 0.55
Connection
Pipe
Length m 5
Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ9.52
Max Distance Height m 10
Max Distance Length m 15
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
2.3 Capacity Variation Ratio According to Temperature
Cooling Heating
01020304050607090 0102030405060708090100 12
0
110
80
11
10
9
8
7
6
5
4
3
2
1
0
11
10
9
8
7
6
5
4
3
2
1
0
220V
230V
240V
220V
230V
240V
Current (A)
Current (A)
Conditions
Indoor:DB27°C/WB19°C
Outdoor:DB35°C/WB24°C
Indoor air flow:Super High
Pipe length:5m
Conditions
Indoor:DB20°C/WB15°C
Outdoor:DB7°C/WB6°C
Indoor air flow:Super High
Pipe length:5m
Compressor speed (rps) Compressor speed (rps)
Cooling Heating
32 33 34 35 36 37 38 39 43
40 41 42
100
105
95
90
85
80
75
70
65
60
55
50
Conditions
Indoor:DB27°C/WB19°C
Indoor air flow:Super High
Pipe length: 5m
Outdoor temp.(°C)
Capacity ratio (%)
30
40
50
60
70
80
90
100
110
120
10
750-5-10-15-20
Outdoor temp.(oC)
Capacity ratio(%)
Conditions
Indoor:DB20°C/WB15°C
Indoor air flow:Super High
Pipe length: 5m
Cooling Heating

5
Technical Information
Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
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:
Rated cooling
condition(oC) (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 (oC) T2 (oC)
27/19 35/24 07K 0.8 ~ 1.1 11 to 14 38 to 41 Super High High
Rated heating
condition(oC) (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)
20/15 7/6 07K 2.8 ~ 3.2 38 to 41 2 to 5 Super High High
2.5 Noise Curve
Indoor side noise
Outdoor side noise
Indoor fan motor rotating speed Compressor frequency/Hz
Low Middle High Supper High
Noise/dB(A)
Noise/dB(A)
70
60
50
30
40
20
50
40
30
02040608
0100
20
18K

6Technical Information
Service Manual
W
D
H
90
150
54
168.5 462 159.5
Φ55 Φ55
54
104 685 181
140
190
38
Φ55 Φ55
38
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:mm
Models W H D
07K 790 275 200

7
Technical Information
Service Manual
3.2 Outdoor Unit
Unit:mm
720
255
286
660 310
428
440