Gree GWH18MC-K3DNB7G User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
GWH18MC-K3DNA2G
GWH18MC-K3DNA3G
GWH18MC-K3DNA5G
GWH18MC-K3DNB3G
GWH18MC-K3DNC9G
GWH18MC-K3DND3G
GWH18MC-K3DNE3G
GWH18MC-K3DNB7G
GWH18MC-K3DNA4G
Models: GWH24MD-K3DNA2G
GWH24MD-K3DNA3G
GWH24MD-K3DNA5G
GWH24MD-K3DNB3G
GWH24MD-K3DNC9G
GWH24MD-K3DND3G
GWH24MD-K3DNE3G
GWH18MC-K3DNA8G
GWH18MC-K3DNC1G
GWH18MC-K3DNC2G
GWH18MC-K3DNC5G
GWH24MD-K3DNA4G
GWH24MD-K3DNA5G
GWH24MD-K3DNA8G
GWH24MD-K3DNC1G
GWH24MD-K3DNC5G
GWH24MD-K3DNC2G
GWH24MD-K3DNA4G
(Refrigerant:R410A)

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 .......................................................................................13
2.3 Capacity Variation Ratio According to Temperature ........................................................13
2.4 Cooling and Heating Data Sheet in Rated Frequency ....................................................14
2.5 Noise Curve.....................................................................................................................14
3. Outline Dimension Diagram.......................................................................15
3.1 Indoor Unit.......................................................................................................................15
3.2 Outdoor Unit ....................................................................................................................16
4. Refrigerant System Diagram.....................................................................17
5. Electrical Part..........................................................................................................18
5.1 Wiring Diagram................................................................................................................18
5.2 PCB Printed Diagram......................................................................................................22
6. Function and Control.......................................................................................24
6.1 Remote Controller Introduction ......................................................................................24
6.2 Brief Description of Modes and Functions.......................................................................28
Part Ⅱ: Installation and Maintenance ..................................................37
7. Notes for Installation and Maintenance...........................................37
8. Installation.................................................................................................................39
8.1 Installation Dimension Diagram.......................................................................................39
8.2 Installation Parts-checking .............................................................................................41
8.3 Selection of Installation Location.....................................................................................41
8.4 Electric Connection Requirement ...................................................................................41
8.5 Installation of Indoor Unit.................................................................................................41
8.6 Installation of Outdoor Unit..............................................................................................44
8.7 Vacuum Pumping and Leak Detection ............................................................................45
8.8 Check after Installation and Test Operation ....................................................................45

Service Manual
Table of Contents Table of Contents
9. Maintenance.....................................................................................................................46
9.1 Malfunction Display of Indoor Unit...........................................................................................46
9.2 Procedure of Troubleshooting .................................................................................................48
9.4 Troubleshooting for Normal Malfunction..................................................................................65
10. Exploded View and Parts List.......................................................................67
10.1 Indoor Unit.............................................................................................................................67
10.2 Outdoor Unit ..........................................................................................................................84
11. Removal Procedure................................................................................................88
11.1 Removal Procedure of Indoor Unit ........................................................................................88
11.2 Removal Procedure of Outdoor Unit .....................................................................................93
Appendix:...............................................................................................................................104
Appendix 1: Reference Sheet of Celsius and Fahrenheit ...........................................................104
Appendix 2: Conguration of Connection Pipe............................................................................104
Appendix 3: Pipe Expanding Method ..........................................................................................105
Appendix 4: List of Resistance for Temperature Sensor .............................................................106

1
Technical Information
Service Manual
1. Summary
Part Ⅰ: Technical Information
Indoor Unit
E3 panel
C1 panel
B7 panel
C5 panel
C2 panel
D3 panel
A8 panel
C9 panel
B3 panel
A5 panel
A2 panel A3 panel

2Technical Information
Service Manual
Outdoor Unit
GWH18MC-K3DNE3G/O
Remote Controller
YT1F(MOTO)
FAN
MODE
IFEEL
CLOCK TIMER
ON
X-FAN TEMPTIMER
OFF
TURBO SLEEP LIGHT
GWH24MD-K3DNE3G/O
A4 panel

3
Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model
1.GWH18MC-K3DNE3G 2.GWH18MC-K3DNC9G 3.GWH18MC-K3DND3G
4.GWH18MC-K3DNA2G 5.GWH18MC-K3DNA3G 6.GWH18MC-K3DNA5G
7.GWH18MC-K3DNB3G 8.GWH18MC-K3DNA8G 9.GWH18MC-K3DNC2G
10.GWH18MC-K3DNC5G 11.GWH18MC-K3DNB7G
Product Code
1.CB404003400 2.CB145005900 3.CB405004300
4.CB181007500 5.CB171011700 6.CB180001400
7.CB163006800 8.CB173005900 9.CB180001500
10.CB179003800 11.CB164002900
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode outdoor
Cooling Capacity(Min~Max) W 5275(1260~6600)
Heating Capacity(Min~Max) W 5800(1120~6800)
Cooling Power Input(Min~Max) W 1625(380~2650)
Heating Power Input(Min~Max) W1760(350~2650)
Cooling Power Current A7.2
Heating Power Current A7.8
Rated Input W 2650
Rated Current A 11.8
Air Flow Volume(SH/H/M/L/SL) m3/h 850/780/650/550/-
Dehumidifying Volume L/h 1.80
EER W/W 3.25
COP W/W 3.30
SEER W/W 6.1
HSPF W/W /
Application Area m223-34
Indoor
Unit
Model of indoor unit
1.GWH18MC-K3DNE3G/I 2.GWH18MC-K3DNC9G/I 3.GWH18MC-K3DND3G/I
4.GWH18MC-K3DNA2G/I 5.GWH18MC-K3DNA3G/I 6.GWH18MC-K3DNA5G/I
7.GWH18MC-K3DNB3G/I 8.GWH18MC-K3DNA8G/I 9.GWH18MC-K3DNC2G/I
10.GWH18MC-K3DNC5G/I 11.GWH18MC-K3DNB7G/I
Product Code of Indoor Unit
1.CB404N03400 2.CB145N05900 3.CB405N04300
4.CB181N07500 5.CB171N11700 6.CB180N01400
7.CB163N06800 8.CB173N05900 9.CB18N001500
10.CB179N03800 11.CB164N02900
Fan Type Cross-ow
Diameter Length(DXL) mm Φ98X710
Fan Motor Cooling Speed (SH/H/M/L/SL) r/min 1350/1150/1050/900/-
Fan Motor Heating Speed (SH/H/M/L/SL) r/min 1420/1250/1150/1050/-
Output of Fan Motor W 20
Fan Motor RLA A 0.31
Fan Motor Capacitor μF 1.5
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 2-1.4
Coil Length (LXDXW) mm 715X25.4X304.8

4Technical Information
Service Manual
Coil Length (LXDXW) mm 715X25.4X304.8
Swing Motor Model MP28VB
Output of Swing Motor W 2
Fuse A 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 48/43/40/35/-
Sound Power Level (SH/H/M/L/SL) dB (A) 58/53/50/45/-
Dimension (WXHXD) mm 940X298X200
Dimension of Carton Box (LXWXH) mm 1010X380X285
Dimension of Package (LXWXH) mm 1013X383X300
Net Weight kg 12
Gross Weight kg 15

5
Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GWH18MC-K3DNE3G/O
Product Code of Outdoor Unit CB404W03400
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model QXA-B141zF030A
Compressor Oil 68EP
Compressor Type Rotary
L.R.A. A 25
Compressor RLA A 7.2
Compressor Power Input W 1440
Overload Protector 1NT11L-6233 or KSD115oC or HPC115/95U1
Throttling Method Capillary
Operation temp oC 16~30
Ambient temp (cooling) oC -15~43
Ambient temp (heating) oC -15~24
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Rows-n Gap mm 2-1.4
Coil Length (LXDXW) mm 851X38.1X660
Fan Motor Speed rpm 750
Output of Fan Motor W 60
Fan Motor RLA A /
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 3200
Fan Type Axial-ow
Fan Diameter mm Φ520
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IP24
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) 56/-/-
Sound Power Level (H/M/L) dB (A) 66/-/-
Dimension (WXHXD) mm 963X700X396
Dimension of Carton Box (LXWXH) mm 1026X455X735
Dimension of Package (LXWXH) mm 1029X458X750
Net Weight kg 45
Gross Weight kg 49.5
Refrigerant R410A
Refrigerant Charge kg 1.35
Connection
Pipe
Length m 5
Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ12
Max Distance Height m 10
Max Distance Length m 25
Note: The connection pipe applies metric diameter.

6Technical Information
Service Manual
Model 1.GWH18MC-K3DNC9G 2.GWH18MC-K3DNE3G 3.GWH18MC-K3DNB3G
4.GWH18MC-K3DNA2G 5.GWH18MC-K3DNC1G 6.GWH18MC-K3DNA4G
Product Code 1.CB145005902 2.CB404003401 3.CB163006801
4.CB181007502 5.CB139005801 6.CB161007601
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode outdoor
Cooling Capacity(Min~Max) W 5275(1260~6600)
Heating Capacity(Min~Max) W 5800(1120~6800)
Cooling Power Input(Min~Max) W 1625(380~2650)
Heating Power Input(Min~Max) W 1760(350~2650)
Cooling Power Current A 7.2
Heating Power Current A 7.8
Rated Input W 2650
Rated Current A 11.8
Air Flow Volume(SH/H/M/L/SL) m3/h 850/780/650/550/-
Dehumidifying Volume L/h 1.80
EER W/W 3.25
COP W/W 3.30
SEER W/W 6.1
HSPF W/W /
Application Area m223-34
Indoor
Unit
Model of Indoor Unit 1.GWH18MC-K3DNC9G/I 2.GWH18MC-K3DNE3G/I 3.GWH18MC-K3DNB3G/I 4.GWH18MC-K3DNA2G/I
5.GWH18MC-K3DNC1G/I 6.GWH18MC-K3DNA4G/I
Product Code of Indoor Unit
1.CB145N05900 2.CB404N03401
3.CB163N06801 4.CB181N07500
5.CB139N05800 6.CB161N07600
Fan Type Cross-ow
Diameter Length(DXL) mm Φ98X710
Fan Motor Cooling Speed (SH/H/M/L/SL) r/min 1350/1150/1050/900/-
Fan Motor Heating Speed (SH/H/M/L/SL) r/min 1420/1250/1150/1050/-
Output of Fan Motor W 20
Fan Motor RLA A 0.31
Fan Motor Capacitor μF 1.5
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 MP28VB
Output of Swing Motor W 2
Fuse A 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 48/43/40/35/-
Sound Power Level (SH/H/M/L/SL) dB (A) 58/53/50/45/-
Dimension (WXHXD) mm 940X298X200
Dimension of Carton Box (LXWXH) mm 1010X380X285
Dimension of Package (LXWXH) mm 1013X383X300
Net Weight kg 12
Gross Weight kg 15

7
Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit GWH18MC-K3DNE3G/O
Product Code of Outdoor Unit CB404W03401
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model QXA-B141zF030A
Compressor Oil 68EP
Compressor Type Rotary
L.R.A. A 25
Compressor RLA A 7.2
Compressor Power Input W 1440
Overload Protector 1NT11L-6233 or KSD115oC or HPC115/95U1
Throttling Method 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 851X38.1X660
Fan Motor Speed rpm 750
Output of Fan Motor W 60
Fan Motor RLA A /
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit m3/h 3200
Fan Type Axial-ow
Fan Diameter mm Φ520
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IP24
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) 56/-/-
Sound Power Level (H/M/L) dB (A) 66/-/-
Dimension (WXHXD) mm 963X700X396
Dimension of Carton Box (LXWXH) mm 1026X455X735
Dimension of Package (LXWXH) mm 1029X458X750
Net Weight kg 45
Gross Weight kg 49.5
Refrigerant R410A
Refrigerant Charge kg 1.35
Connection
Pipe
Length m 5
Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ12
Max Distance Height m 10
Max Distance Length m 25
Note: The connection pipe applies metric diameter.
Indoor
Unit
Model of Indoor Unit 1.GWH18MC-K3DNC9G/I 2.GWH18MC-K3DNE3G/I 3.GWH18MC-K3DNB3G/I 4.GWH18MC-K3DNA2G/I
5.GWH18MC-K3DNC1G/I 6.GWH18MC-K3DNA4G/I
Product Code of Indoor Unit
1.CB145N05900 2.CB404N03401
3.CB163N06801 4.CB181N07500
5.CB139N05800 6.CB161N07600
Fan Type Cross-ow
Diameter Length(DXL) mm Φ98X710
Fan Motor Cooling Speed (SH/H/M/L/SL) r/min 1350/1150/1050/900/-
Fan Motor Heating Speed (SH/H/M/L/SL) r/min 1420/1250/1150/1050/-
Output of Fan Motor W 20
Fan Motor RLA A 0.31
Fan Motor Capacitor μF 1.5
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 MP28VB
Output of Swing Motor W 2
Fuse A 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 48/43/40/35/-
Sound Power Level (SH/H/M/L/SL) dB (A) 58/53/50/45/-
Dimension (WXHXD) mm 940X298X200
Dimension of Carton Box (LXWXH) mm 1010X380X285
Dimension of Package (LXWXH) mm 1013X383X300
Net Weight kg 12
Gross Weight kg 15