Gree GEH18AA-K3DNA1D User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
Models: GEH12AA-K3DNA1D
GEH18AA-K3DNA1D
(Refrigerant R410A)

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 .........................................................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 .....................................................................................................12
6. Function and Control......................................................................................15
6.1 Remote Controller Introduction .....................................................................................15
6.2 Operation of Smart Control (Smart Phone, Tablet PC) ..................................................19
6.3 Operation of Smart Control (Smart Phone, Tablet PC) For Gree...................................30
6.4 Brief Description of Modes and Functions......................................................................41
Part Ⅱ: Installation and Maintenance .................................................43
7. Notes for Installation and Maintenance..........................................43
8. Installation................................................................................................................45
8.1 Requirements for Electric Connection............................................................................45
8.2 Installation of indoor unit ................................................................................................45
8.3 Outdoor Unit Installation.................................................................................................51
8.4 Vacuum Pumping and Leak Detection ...........................................................................52
8.5 Check after Installation and Test Operation ...................................................................53
9. Maintenance............................................................................................................54
9.1 Error Code List ...............................................................................................................54
9.2 Troubleshooting for Main Malfunction ............................................................................56
9.3 Maintenance Method for Normal Malfunction.................................................................61

Service Manual
Table of Contents Table of Contents
10. Exploded View and Parts List ..............................................................63
10.1 Indoor Unit....................................................................................................................63
10.2 Outdoor Unit.................................................................................................................65
11. Removal Procedure.......................................................................................69
11.1 Removal Procedure of Indoor Unit ...............................................................................69
11.2 Removal Procedure of Outdoor Unit ............................................................................73
Appendix:........................................................................................................................85
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................85
Appendix 2: Conguration of Connection Pipe.....................................................................85
Appendix 3: Pipe Expanding Method ...................................................................................86
Appendix 4: List of Resistance for Temperature Sensor ......................................................87

1
Technical Information
Service Manual
1. Summary
Part Ⅰ: Technical Information
Indoor Unit
Outdoor Unit
GEH12AA-K3DNA1D/O(LCLH) GEH18AA-K3DNA1D/O(LCLH)
GEH12AA-K3DNA1D/I
GEH18AA-K3DNA1D/I
Remote Controller
YAA1FB8(WiFi)

2Technical Information
Service Manual
Parameter Unit Value
Model GEH12AA-K3DNA1D GEH18AA-K3DNA1D
Product Code CV010002600 CV010002400
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 3500 5200
Heating Capacity(Min~Max) W 3750 5330
Cooling Power Input(Min~Max) W 1100 1600
Heating Power Input(Min~Max) W 1000 1500
Cooling Current Input A 4.85 7.10
Heating Current Input A 4.33 6.65
Rated Input W 1600 2500
Rated Current A 5.9 10.9
Air Flow Volume(SH/H/HM/M/LM/L/SL) m3/h 600/520/480/440/400/360/280 700/650/580/520/460/410/320
Dehumidifying Volume L/h 1.2 1.8
EER W/W 3.18 3.25
COP W/W 3.75 3.55
SEER W/W 6.4 6.5
HSPF W/W / /
Application Area m216-24 23-34
Indoor
Unit
Indoor Unit Model GEH12AA-K3DNA1D/I GEH18AA-K3DNA1D/I
Indoor Unit Product Code CV010N02600 CV010N02400
Fan Type Centrifugal Centrifugal
Fan Diameter Length(DXL) mm Φ370X80 Φ370X80
Cooling Speed
(SH/H/HM/M/LM/L/SL) r/min 750/650/600/550/500/450/350 720/620/570/520/470/420/320
840/800/720/650/580/530/410
810/770/690/620/550/500/380
Heating Speed
(SH/H/HM/M/LM/L/SL) r/min 750/650/600/550/500/450/350 720/620/570/520/470/420/320
930/840/760/690/620/570/480
850/800/720/650/580/530/470
Fan Motor Power Output W 30 30
Fan Motor RLA A 0.15 0.15
Fan Motor Capacitor μF / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ7 Φ7
Evaporator Row-n Gap mm 2-1.3 2-1.3
Evaporator Coil Length (LXDXW) mm 511X400X25.4 511X400X25.4
Swing Motor Model MP24EB/MP24AE MP24EB/MP24AE
Swing Motor Power Output W 1.5/1.5 1.5/1.5
Fuse Current A 3.15 3.15
Sound Pressure Level
(SS/H/MH/M/ML/L/SL) dB (A) 42/40/38/36/34/31/25 47/45/42/40/37/35/31
Sound Power Level
(SS/H/MH/M/ML/L/SL) dB (A) 52/50/48/46/44/41/35 57/55/52/50/47/45/41
Dimension (WXHXD) mm 700X215X600 700X215X600
Dimension of Carton Box (LXWXH) mm 785X280X682 785X280X682
Dimension of Package(LXWXH) mm 788X283X697 788X283X697
Net Weight kg 15.5 15.5
Gross Weight kg 18.5 18.5
2. Specications
2.1 Specication Sheet

3
Technical Information
Service Manual
Outdoor
Unit
Outdoor Unit Model GEH12AA-K3DNA1D/O GEH18AA-K3DNA1D/O
Outdoor Unit Product Code CV010W02600 CV010W02400
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR
CO.,LTD
ZHUHAI LANDA COMPRESSOR
CO.,LTD
Compressor Model QXA-B102zE190 QXA-B141zF030
Compressor Oil RB68EP 68EP
Compressor Type Rotary Rotary
Compressor LRA. A / 18
Compressor RLA A 6.6 7.2
Compressor Power Input W 1020 1440
Compressor Overload Protector 1NT11L-6233 or HPC115/95U1 or
KSD115ºC
1NT11L-6233 or KSD115ºC or
HPC115/95U1
Throttling Method Electron expansion valve Electron 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 -22~24 -22~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7.94 Φ7
Condenser Rows-n Gap mm 2-1.4 2-1.4
Condenser Coil Length (LXDXW) mm 710X38.1X508 851X38.1X660
Fan Motor Speed rpm 900 800
Fan Motor Power Output W 30 60
Fan Motor RLA A 0.37 0.39
Fan Motor Capacitor μF / /
Outdoor Unit Air Flow Volume m3/h 1600 3200
Fan Type Axial-ow Axial-ow
Fan Diameter mm Φ400 Φ520
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) 52/-/- 57/-/-
Sound Power Level (H/M/L) dB (A) 62/-/- 65/-/-
Dimension(WXHXD) mm 782X540X320 963X700X396
Dimension of Carton Box (LXWXH) mm 820X355X580 1026X455X735
Dimension of Package(LXWXH) mm 823X358X595 1029X458X750
Net Weight kg 31.5 46
Gross Weight kg 34 50.5
Refrigerant R410A R410A
Refrigerant Charge kg 0.95 1.3
Connection
Pipe
Connection Pipe Length m 5 5
Connection Pipe Gas Additional Charge g/m 20 20
Outer Diameter Liquid Pipe mm Φ6 Φ6
Outer Diameter Gas Pipe mm Φ9.52 Φ12
Max Distance Height m 10 10
Max Distance Length m 20 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.

4Technical Information
Service Manual
2.2 Operation Characteristic Curve
Cooling
Cooling
12K
18K
Heating
Heating
0
09070605040302010 1
10
210010908070605040302010
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
• 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
220V
230V
240V
220V
230V
240V
Current (A) Current (A)
Compressor frequency(Hz) Compressor frequency(Hz)
Cooling Heating
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 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
CoolingHeating
• 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

5
Technical Information
Service Manual
2.3 Capacity Variation Ratio According to Temperature
12K
18K
Cooling
Cooling
Heating
Heating
32 33 34 35 36 37 38 39 43 –15 –10 –5 05
710
40 41 42
100
105
95
90
85
80
75
70
65
60
55
50
Outdoor temp. (˚C)
110
100
90
80
70
60
50
40
Outdoor temp. (˚C)
Capacity ratio (%)
Capacity ratio (%)
• 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
100
105
95
90
85
80
75
70
65
60
55
50
Outdoor temp. (˚C)
)%(oitaryticapaC
110
100
90
80
70
60
50
40
Outdoor temp. (˚C)
)%(oitaryticapaC
32 33 34 35 36 37 38 39 40 41 42 43
Cooling Heating
-15 -10 -5 0 5 7 10
• 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

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 12K 0.9 to 1.1 12 to 14 70 to 40 Super High High 72
18K 0.9 to 1.1 12 to 14 80 to 40 Super High High 70
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 12K 2.2 to 2.4 70 to 35 2 to 4 Super High High 77
18K 2.2 to 2.4 70 to 40 1 to 5 Super High High 70
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.
Cooling:
Heating:
2.5 Noise Curve
12K
18K
45
46
47
48
49
50
51
52
53
12345678910 11 12 13 14 15 16 17
Compressor frequency(Hz)
Noise dB(A)
Coolin
g
Heating
Indoor side noise when blowing Outdoor side noise when blowing
Indoor fan motor rotating speed
SLLLMMHMHSH
20
30
40
50
Compressor frequency(Hz)
Indoor side noise when blowing Outdoor side noise when blowing
Indoor fan motor rotating speed
SLLLMMHMHSH
20
30
40
50
20
30
40
50
60
20040608
0100
)A(Bd/esioN

7
Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
700 215
600
398
205
22
Unit:mm