Gree GWH18RC-K3DNA2C User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
GWH18RC-K3DNA2C
GWH18RC-K3DNA3C
GWH18RC-K3DNA5C
GWH18RC-K3DNA6C
GWH18RC-K3DNA8C
GWH18RC-K3DNA9C(white panel)
GWH18RC-K3DNA9C(silver grey panel)
GWH24RD-K3DNA2C
GWH24RD-K3DNA3C
GWH24RD-K3DNA5C
GWH24RD-K3DNA6C
GWH24RD-K3DNA8C
(Refrigerant R410A)

Service Manual
Table of Contents
Table of Contents
Part ĉ: Technical Information......................................................................... 1
1. Summary........................................................................................................................ 1
6SHFL¿FDWLRQV............................................................................................................ 3
6SHFL¿FDWLRQ6KHHW............................................................................................................. 3
2.2 Operation Characteristic Curve .......................................................................................... 9
2.3 Capacity Variation Ratio According to Temperature ........................................................... 9
2.4 Cooling and Heating Data Sheet in Rated Frequency ..................................................... 10
2.5 Noise Curve...................................................................................................................... 10
3. Outline Dimension Diagram.........................................................................11
3.1 Indoor Unit.........................................................................................................................11
3.2 Outdoor Unit ..................................................................................................................... 12
4. Refrigerant System Diagram...................................................................... 14
5. Electrical Part........................................................................................................... 15
5.1 Wiring Diagram................................................................................................................. 15
5.2 PCB Printed Diagram ....................................................................................................... 19
6. Function and Control........................................................................................ 22
6.1 Remote Controller Introduction ....................................................................................... 22
6.2 Brief Description of Modes and Functions........................................................................ 26
Part Ċ: Installation and Maintenance ................................................... 31
7. Notes for Installation and Maintenance............................................ 31
8. Installation.................................................................................................................. 33
8.1 Installation Dimension Diagram........................................................................................ 33
8.2 Installation Parts-checking .............................................................................................. 35
8.3 Selection of Installation Location...................................................................................... 35
8.4 Electric Connection Requirement..................................................................................... 35
8.5 Installation of Indoor Unit.................................................................................................. 35
8.6 Installation of Outdoor Unit............................................................................................... 38
8.7 Vacuum Pumping and Leak Detection ............................................................................. 39
8.8 Check after Installation and Test Operation ..................................................................... 39

Service Manual
Table of Contents
9. Maintenance.................................................................................................................40
9.1 Precautions before Maintenance......................................................................................... 40
9.2 Error Code List ....................................................................................................................41
9.3 Troubleshooting for Main Malfunction ................................................................................. 46
9.4 Troubleshooting for Normal Malfunction..............................................................................59
10. Exploded View and Parts List ...................................................................61
10.1 Indoor Unit.........................................................................................................................61
10.2 Outdoor Unit ......................................................................................................................71
11. Removal Procedure............................................................................................79
11.1 Removal Procedure of Indoor Unit ....................................................................................79
11.2 Removal Procedure of Outdoor Unit(18K).........................................................................86
11.3 Removal Procedure of Outdoor Unit(24K).........................................................................93
Appendix:...........................................................................................................................100
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................... 100
$SSHQGL[&RQ¿JXUDWLRQRI&RQQHFWLRQ3LSH........................................................................ 100
Appendix 3: Pipe Expanding Method ......................................................................................101
Appendix 4: List of Resistance for Ambient Temperature Sensor ...........................................102

1
Technical Information
Service Manual
1. Summary
Part ĉ: Technical Information
Indoor Unit:
GWH18RC-K3DNA2C/I
GWH24RD-K3DNA2C/I
GWH18RC-K3DNA3C/I
GWH24RD-K3DNA3C/I
GWH18RC-K3DNA8C/I
GWH24RD-K3DNA8C/I
GWH18RC-K3DNA6C/I
GWH24RD-K3DNA6C/I
GWH18RC-K3DNA5C/I
GWH24RD-K3DNA5C/I

2Technical Information
Service Manual
GWH18RC-K3DNA3C/O
Outdoor Unit:
Remote Controller:
YAA1FB
GWH18RC-K3DNA8C/O GWH24RD-K3DNA8C/O
GWH24RD-K3DNA3C/O
GWH18RC-K3DNA9C/I(white panel)
GWH18RC-K3DNA9C/I(silver grey panel)

3
Technical Information
Service Manual
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6SHFL¿FDWLRQ6KHHW
Model
1.GWH18RC-K3DNA3C
2.GWH18RC-K3DNA2C
3.GWH18RC-K3DNA6C
1.GWH24RD-K3DNA3C
2.GWH24RD-K3DNA2C
3.GWH24RD-K3DNA6C
Product Code
1.CB302001100
2.CB301001300
3.CB305000300
1.CB302001400
2.CB301001400
3.CB305000400
Power
Supply
Rated Voltage V 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Power Supply Mode Indoor Indoor
Cooling Capacity W 5275 6450
Heating Capacity W 5275 6450
Cooling Power Input W 1620 1940
Heating Power Input W 1600 1910
Cooling Power Current A 7.19 8.5
Heating Power Current A 7.10 8.5
Rated Input W 2500 3050
Rated Current A 10.87 13.85
Air Flow Volume (SH/H/M/L/SL) m3/h 850/780/740/300/- 1000/800/700/600/-
Dehumidifying Volume L/h 1.8 2.5
EER W/W 3.26 3.32
COP W/W 3.30 3.38
SEER W/W / /
HSPF W/W / /
Application Area m223-34 27-42
Indoor Unit
Model of indoor unit
1.GWH18RC-K3DNA3C/I
2.GWH18RC-K3DNA2C/I
3.GWH18RC-K3DNA6C/I
1.GWH24RD-K3DNA3C/I
2.GWH24RD-K3DNA2C/I
3.GWH24RD-K3DNA6C/I
Fan Type &URVVÀRZ &URVVÀRZ
Diameter Length (DXL) mm ĭ; ĭ;
Fan Motor Cooling Speed (SH/H/M/L/SL) r/min 1350/1200/1000/800/- 1350/1150/950/850/-
Fan Motor Heating Speed (SH/H/M/L/SL) r/min 1420/1250/1100/950/- 1400/1200/1000/900/-
Output of Fan Motor W 20 35
Fan Motor RLA A 0.31 0.31
Fan Motor Capacitor ȝ) 1.5 2.5
Input of Heater W / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm ĭ ĭ
5RZ¿Q*DS mm 2-1.4 2-1.5
Coil Length (LXDXW) mm 715X25.4X304.8 765X25.4X342.9
Swing Motor Model MP28VB MP35XX
Output of Swing Motor W 2.0 2.5
Fuse A 3.15 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 48/46/37/33/- 50/45/39/36/-
Sound Power Level (SH/H/M/L/SL) dB (A) 58/56/47/43/- 60/55/49/46/-
Dimension (WXHXD) mm 945X298X208 1018X315X223
Dimension of Carton Box (LXWXH) mm 1010X380X285 1083X395X313
Dimension of Package (LXWXH) mm 1013X383X300 1086X398X328
Net Weight kg 13 15.5
Gross Weight kg 16 19

4Technical Information
Service Manual
Outdoor Unit
Model of Outdoor Unit GWH18RC-K3DNA3C/O GWH24RD-K3DNA3C/O
Outdoor Unit Product Code CB302W01100 CB302W01400
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO., LTD
ZHUHAI LANDA COMPRESSOR
CO,LTD
Compressor Model QXA-B141zF030A QXAS-D23zX090B
Compressor Oil 68EP RB68EP
Compressor Type Rotary Rotary
L.R.A. A 25.00 25.00
Compressor RLA A 7.20 11.50
Compressor Power Input W 1440 2550
Overload Protector 1NT11L-6233or HPC 115/95 or
KSD115ć
1NT11L-6233or HPC 115/95 or
KSD115ć
Throttling Method Electron expansion valve Electron expansion valve
Operation temp ć16 30 16 30
Ambient temp (cooling) ć18 43 18 43
Ambient temp (heating) ć-7 24 -7 24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm ĭ ĭ
5RZV¿Q*DS mm 2-1.4 2-1.4
Coil Length (LXDXW) mm 821.5X38.1X660 955X38X748
Fan Motor Speed rpm 800/300 780
Output of Fan Motor W 60 90
Fan Motor RLA A 0.58 0.48
Fan Motor Capacitor ȝ) //
Air Flow Volume of Outdoor Unit m3/h 3200 4000
Fan Type $[LDOÀRZ $[LDOÀRZ
Fan Diameter mm ĭ ĭ
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IP24
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) 56/-/- 58/-/-
Sound Power Level (H/M/L) dB (A) 66/-/- 70/-/-
Dimension (WXHXD) mm 965X700X396 1000X790X427
Dimension of Carton Box (LXWXH) mm 1026X455X735 1080X485X840
Dimension of Package (LXWXH) mm 1029X458X750 1083X488X855
Net Weight kg 46 62.5
Gross Weight kg 51 67
Refrigerant R410A R410A
Refrigerant Charge kg 1.30 2.00
Connection
Pipe
Length m 5 5
Gas Additional Charge g/m 20 50
Outer Diameter Liquid Pipe mm ĭ ĭ
Outer Diameter Gas Pipe mm ĭ ĭ
Max Distance Height m 10 10
Max Distance Length m 25 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.

5
Technical Information
Service Manual
Model GWH18RC-K3DNA8C
GWH18RC-K3DNA5C
GWH24RD-K3DNA8C
GWH24RD-K3DNA5C
Product Code CB313000400
CB304002200
CB313000300
CB304002300
Power
Supply
Rated Voltage V 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity W 5275 6450
Heating Capacity W 5600 6450
Cooling Power Input W 1620 1940
Heating Power Input W 1650 1910
Cooling Power Current A 7.19 8.5
Heating Power Current A 7.10 8.5
Rated Input W 2500 4000
Rated Current A 10.87 17.50
Air Flow Volume (SH/H/M/L/SL) m3/h 850/780/740/300/- 1000/800/700/600/-
Dehumidifying Volume L/h 1.8 2.5
EER W/W 3.26 3.32
COP W/W 3.39 3.38
SEER W/W / /
HSPF W/W / /
Application Area m223-34 27-42
Indoor Unit
Model of indoor unit GWH18RC-K3DNA8C/I
GWH18RC-K3DNA5C/I
GWH24RD-K3DNA8C/I
GWH24RD-K3DNA5C/I
Fan Type &URVVÀRZ &URVVÀRZ
Diameter Length (DXL) mm ĭ; ĭ;
Fan Motor Cooling Speed (SH/H/M/L/SL) r/min 1350/1200/1000/800/- 1350/1150/950/850/-
Fan Motor Heating Speed (SH/H/M/L/SL) r/min 1420/1250/1100/950/- 1400/1200/1000/900/-
Output of Fan Motor W 20 35
Fan Motor RLA A 0.31 0.31
Fan Motor Capacitor ȝ) 1.5 2.5
Input of Heater W / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm ĭ ĭ
5RZ¿Q*DS mm 2-1.4 2-1.5
Coil Length (LXDXW) mm 715X25.4X304.8 765X25.4X342.9
Swing Motor Model MP28VB MP35XX
Output of Swing Motor W 2.0 2.5
Fuse A 3.15 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 48/46/37/33/- 50/45/39/36/-
Sound Power Level (SH/H/M/L/SL) dB (A) 58/56/47/43/- 60/55/49/46/-
Dimension (WXHXD) mm 945X298X208 1018X315X223
Dimension of Carton Box (LXWXH) mm 1010X380X285 1083X395X313
Dimension of Package (LXWXH) mm 1013X383X300 1086X398X328
Net Weight kg 12 15
Gross Weight kg 15 18.5

6Technical Information
Service Manual
Outdoor Unit
Model of Outdoor Unit GWH18RC-K3DNA8C/O GWH24RD-K3DNA8C/O
Outdoor Unit Product Code CB313W00400 CB313000300
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO., LTD
ZHUHAI LANDA COMPRESSOR
CO,LTD
Compressor Model QXA-B141zF030A QXAS-D23zX090B
Compressor Oil 68EP RB68EP
Compressor Type Rotary Rotary
L.R.A. A 25.00 25.00
Compressor RLA A 7.20 11.50
Compressor Power Input W 1440 2550
Overload Protector 1NT11L-6233or HPC 115/95 or
KSD115ć
1NT11L-6233or HPC 115/95 or
KSD115ć
Throttling Method Electron expansion valve Electron expansion valve
Operation temp ć16 30 16 30
Ambient temp (cooling) ć18 43 18 43
Ambient temp (heating) ć-7 24 -7 24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm ĭ ĭ
5RZV¿Q*DS mm 2-1.4 2-1.4
Coil Length (LXDXW) mm 821.5X38.1X660 955X38X748
Fan Motor Speed rpm 800/300 780
Output of Fan Motor W / /
Fan Motor RLA A / /
Fan Motor Capacitor ȝ) //
Air Flow Volume of Outdoor Unit m3/h 3200 4000
Fan Type $[LDOÀRZ $[LDOÀRZ
Fan Diameter mm ĭ ĭ
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IP24
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) 56/-/- 58/-/-
Sound Power Level (H/M/L) dB (A) 66/-/- 70/-/-
Dimension (WXHXD) mm 965X700X396 1000X790/X427
Dimension of Carton Box (LXWXH) mm 1026X455X735 1080X485X840
Dimension of Package (LXWXH) mm 1029X458X750 1083X488X855
Net Weight kg 48 62.5
Gross Weight kg 52.5 67
Refrigerant R410A R410A
Refrigerant Charge kg 1.30 2.00
Connection
Pipe
Length m 5 5
Gas Additional Charge g/m 20 50
Outer Diameter Liquid Pipe mm ĭ ĭ
Outer Diameter Gas Pipe mm ĭ ĭ
Max Distance Height m 10 10
Max Distance Length m 25 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.

7
Technical Information
Service Manual
Model GWH18RC-K3DNA9C(white panel)
GWH18RC-K3DNA9C(silver grey panel)
Product Code CB314000300
CB314000301
Power
Supply
Rated Voltage V 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity W 5275
Heating Capacity W 5600
Cooling Power Input W 1620
Heating Power Input W 1650
Cooling Power Current A 7.19
Heating Power Current A 7.10
Rated Input W 2500
Rated Current A 10.87
Air Flow Volume (SH/H/M/L/SL) m3/h 850/780/740/300/-
Dehumidifying Volume L/h 1.8
EER W/W 3.26
COP W/W 3.39
SEER W/W /
HSPF W/W /
Application Area m223-34
Indoor Unit
Model of indoor unit GWH18RC-K3DNA9C/I(white panel)
GWH18RC-K3DNA9C/I(silver grey panel)
Fan Type &URVVÀRZ
Diameter Length (DXL) mm ĭ;
Fan Motor Cooling Speed (SH/H/M/L/SL) r/min 1350/1200/1000/800/-
Fan Motor Heating Speed (SH/H/M/L/SL) r/min 1420/1250/1100/950/-
Output of Fan Motor W 20
Fan Motor RLA A 0.31
Fan Motor Capacitor ȝ) 1.5
Input of Heater W /
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm ĭ
5RZ¿Q*DS mm 2-1.4
Coil Length (LXDXW) mm 715X25.4X304.8
Swing Motor Model MP28VB
Output of Swing Motor W 2.0
Fuse A 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 48/46/37/33/-
Sound Power Level (SH/H/M/L/SL) dB (A) 58/56/47/43/-
Dimension (WXHXD) mm 945X298X205
Dimension of Carton Box (LXWXH) mm 1010X380X285
Dimension of Package (LXWXH) mm 1013X383X300
Net Weight kg 12
Gross Weight kg 15