Gree GVH24AK-K3DNC8A User manual

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Service Manual
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GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Model: GVH24AK-K3DNC8A
(Refrigerant:R410A)

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 Curve in Different Outdoor Temperature ...........................................................4
2.4 Cooling 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 Function Buttons of Air Conditioner................................................................................13
6.2 Remote Control Operations............................................................................................15
6.3 GREE+ App Operation Manual ......................................................................................20
6.4 Ewpe Smart App Operation Manual...............................................................................21
6.5 Description of Each Control Operation...........................................................................22
Part Ⅱ: Installation and Maintenance .................................................28
7. Notes for Installation and Maintenance..........................................28
8. Installation................................................................................................................31
8.1 Installation procedures ...................................................................................................31
8.2 Installation Parts-checking ............................................................................................32
8.3 Selection of Installation Location....................................................................................32
8.4 Precautions of Connecting Pipe .....................................................................................32
8.5 Electric Connection Requirement...................................................................................33
8.6 Installation of Indoor Unit................................................................................................34
8.7 Installation of Outdoor Unit.............................................................................................36
8.8 Vacuum Pumping and Leak Detection ...........................................................................37
8.9 Check after Installation and Test Operation ...................................................................37
8.10 Installation of anti-tilting Chain .....................................................................................37
Table of Contents

Service Manual
9.Troubleshooting....................................................................................................39
9.1 Judgement by Flashing LED of Indoor ...........................................................................39
9.2 How to Check Simply the Main Part of Indoor ...............................................................43
9.3 How to Check Simply the Main Part of outdoor .............................................................52
9.4 Maintenance Method for Normal Malfunction.................................................................61
10. Exploded View and Parts List ..............................................................63
10.1 Indoor Unit....................................................................................................................63
10.2 Outdoor Unit .................................................................................................................66
11. Removal Procedure.......................................................................................68
11.1 Removal Procedure of Indoor Unit ...............................................................................68
11.2 Removal Procedure of Outdoor Unit ............................................................................77
Appendix:........................................................................................................................82
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................82
Appendix 2: Conguration of Connection Pipe.....................................................................82
Appendix 3: Pipe Expanding Method ...................................................................................83
Appendix 4: List of Resistance for Temperature Sensor ......................................................84
Table of Contents

Service Manual
1
Technical Information
1.Summary
Part Ⅰ: Technical Information
Indoor Unit:
Remote Controller:
Outdoor Unit:
GVH24AK-K3DNC8A/I
GVH24AK-K3DNC8A/O
YAP1F4(WiFi)

Service Manual
2Technical Information
2. Specications
2.1 Specication Sheet
Parameter Unit Value
Model GVH24AK-K3DNC8A
Product Code CH057000100
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50/60
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 7100
Heating Capacity W 8800
Cooling Power Input W 2220
Heating Power Input W 2750
Cooling Power Current A 10.46
Heating Power Current A 13.03
Rated Input W 3800
Rated Cooling Current A 21.00
Rated Heating Current A 22.00
Air Flow Volume(SH/H/M/L/SL) m3/h 1480/1200/1060/750/570
Dehumidifying Volume L/h 3.0
EER W/W 3.20
COP W/W 3.20
SEER W/W /
HSPF W/W /
Application Area m246-70
Indoor Unit
Model of indoor unit GVH24AK-K3DNC8A/I
Product Code CH057N00100
Fan Type Centrifugal
Diameter Length(DXL) mm Φ111.5X1959
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1250/1020/900/780/480
Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1250/1020/900/780/480
Output of Fan Motor W 30
Fan Motor RLA A 0.12
Fan Motor Capacitor μF /
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ5
Row-n Gap mm 2-1.3
Coil Length (LXDXW) mm 952X23X369
Swing Motor Model MP35GD/MP35GT/MP50AC
Output of Swing Motor W 2.5/2.5/3.5
Fuse A 5
Sound Pressure Level (SH/H/M/L/SL) dB (A) 47/42/39/35/30
Sound Power Level (SH/H/M/L/SL) dB (A) 61/56/53/49/44
Dimension (WXHXD) mm 458X1790X458
Dimension of Carton Box (LXWXH) mm 1940X555X575
Dimension of Package(LXWXH) mm 1943X558X590
Net Weight kg 50
Gross Weight kg 55

Service Manual
3
Technical Information
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GVH24AK-K3DNC8A/O
Product Code CH057W00100
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD.
Compressor Model QXFS-D25zX090H
Compressor Oil FW68DA
Compressor Type Rotary
Compressor RLA A 10.63
Compressor Power Input W 2366
Overload Protector HPC115/95U1
Throttling Method Electron expansion valve +Capillary
Operation Temp ºC 16~30
Ambient Temp (Cooling) ºC -15~43
Ambient Temp (Heating) ºC -20~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Rows-n Gap mm 2-1.4
Coil Length (LXDXW) mm 980X790X427
Fan Motor Speed rpm 750
Output of Fan Motor W 60
Fan Motor RLA A 0.87
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 4000
Fan Type Axial-ow
Fan Diameter mm Φ520
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) 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 54
Gross Weight kg 58
Refrigerant R410A
Refrigerant Charge kg 2.0
Connection
Pipe
Length m 5
Gas Additional Charge g/m 50
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ16
Max Distance Height m 20
Max Distance Length m 30
Note: The connection pipe applies metric diameter.

Service Manual
4Technical Information
2.2 Operation Characteristic Curve
2.3 Capacity Curve in Different Outdoor Temperature
Cooling Heating
Outdoor Temp.(°C) Outdoor Temp.(°C)
Capacity ratio(%)
Capacity ratio(%)
29 34 39 44 49 54
60
70
80
90
100
110
120
50
40 40
50
120
110
100
90
80
70
60
108-07-20
-30 -15
Conditions
Indoor: DB20°C/WB15°C
Indoor air flow: High
Pipe length: 5m
Conditions
Indoor: DB27°C/WB19°C
Indoor air flow: High
Pipe length: 5m
Cooling Heating
010203040506070900110210010908070605040302010
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)

Service Manual
5
Technical Information
2.4 Cooling 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: 5 m.
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
revolution
(rps)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
27/19 35/24 24K 0.8 to 1.0 in:8~11
out:11~14
in:75~85
out:37~43 Super High High 89
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
revolution
(rps)
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
20/- 7/6 24K 2.5 to 2.7 in:75~85
out:37~43
in:1~3
out:3~5 Super High High 87
Cooling:
Heating:
2.5 Noise Curve
60 60
60 80
100
50
50
40
40
40
30
30
20
20
20
10
00
Noise/dB(A)
lowlow Middle High SuperSuper High
)A(Bd/esioN
Indoor side noise when blowing
Indoor fan motor rotating speed Compressor frequency/Hz
Outdoor side noise when blowing

Service Manual
6Technical Information
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:mm
458
4581790
476

Service Manual
7
Technical Information
3.2 Outdoor Unit
Unit:mm
897 340
560
463
963
396
007