Gree GWC18MC-D3DNA3F/I User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
Model:GWC18MC-D3DNA3F
GWC18MC-D3DNA5F
GWH18MC-D3DNA3F
GWH18MC-D3DNA5F
GWH18MC-D3DNA8F
GWC24MD-D3DNA3F
GWC24MD-D3DNA5F
GWH24MD-D3DNA3F
GWH24MD-D3DNA5F
GWH24MD-D3DNA8F
(Refrigerant R410A)

Service Manual
Table of Contents
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 ........................................................................................ 10
2.3 Capacity Variation Ratio According to Temperature ......................................................... 10
2.4 Cooling and Heating Data Sheet in Rated Frequency ......................................................11
2.5 Noise Curve.......................................................................................................................11
3. Outline Dimension Diagram........................................................................ 12
3.1 Indoor Unit........................................................................................................................ 12
3.2 Outdoor Unit ..................................................................................................................... 13
4. Refrigerant System Diagram...................................................................... 14
5. Electrical Part........................................................................................................... 15
5.1 Wiring Diagram................................................................................................................. 15
5.2 PCB Printed Diagram ....................................................................................................... 20
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 ................................................... 35
7. Notes for Installation and Maintenance............................................ 35
8. Installation.................................................................................................................. 37
8.1 Installation Dimension Diagram........................................................................................ 37
8.2 Installation Parts-checking .............................................................................................. 39
8.3 Selection of Installation Location...................................................................................... 39
8.4 Electric Connection Requirement .................................................................................... 39
8.5 Installation of Indoor Unit.................................................................................................. 39
8.6 Installation of Outdoor Unit............................................................................................... 42
8.7 Vacuum Pumping and Leak Detection ............................................................................. 43
8.8 Check after Installation and Test Operation ..................................................................... 43

Table of Contents
Service Manual
Table of Contents Table of Contents
9. Maintenance.................................................................................................................44
9.1 Precautions before Maintenance.........................................................................................44
9.2 Error Code List ....................................................................................................................45
9.3 Troubleshooting for Main Malfunction ................................................................................. 56
9.4 Troubleshooting for Normal Malfunction..............................................................................70
10. Exploded View and Parts List ................................................................... 72
10.1 Indoor Unit.........................................................................................................................72
10.2 Outdoor Unit ......................................................................................................................82
11. Removal Procedure............................................................................................92
11.1 Removal Procedure of Indoor Unit ....................................................................................92
11.2 Removal Procedure of Outdoor Unit ...............................................................................102
Appendix:........................................................................................................................... 112
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................... 112
Appendix 2: Conguration of Connection Pipe........................................................................ 112
Appendix 3: Pipe Expanding Method ...................................................................................... 113
Appendix 4: List of Resistance for Temperature Sensor ......................................................... 114

1
Technical Information
Service Manual
1. Summary
Part Ⅰ: Technical Information
Indoor Unit:
GWC18MC-D3DNA3F/I
GWH18MC-D3DNA3F/I
GWC24MD-D3DNA3F/I
GWH24MD-D3DNA3F/I
GWH18MC-D3DNA8F/I
GWH24MD-D3DNA8F/I
GWC18MC-D3DNA5F/I
GWH18MC-D3DNA5F/I
GWC24MD-D3DNA5F/I
GWH24MD-D3DNA5F/I
Outdoor Unit:
GWC18MC-D3DNA3D/O
GWH18MC-D3DNA3D/O
GWH18MC-D3DNA3D/O(electric heating band)
GWC24MD-D3DNA3D/O
GWH24MD-D3DNA3D/O
GWH24MD-D3DNA3D/O(electric heating band)
Remote Controller:
YB1FAF(XFAN)
ON/OFF MODE
FAN
CLOCK TIMER ON
X-FAN TEMP
TIMER OFF
TURBO S LEEP LIGH T

2Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model GWC18MC-D3DNA3F
GWC18MC-D3DNA5F
Product Code CB171008800
CB162009400
Power
Supply
Rated Voltage V ～208/230
Rated Frequency Hz 60
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min ～Max) Btu/h 18000(5970~22350)
Heating Capacity(Min ～Max) Btu/h /
Cooling Power Input(Min ～Max) W 1500(300~2650)
Heating Power Input(Min ～Max) W /
Cooling Current Input A 6.65
Heating Current Input A /
Rated Input W 2650
Rated Current A 11.76
Air Flow Volume (S/H/M/L) CFM 500/459/383/324
Dehumidifying Volume Pint/h 3.8
EER (Btu/h)/W 12
COP (Btu/h)/W /
SEER 18
HSPF /
Application Area yd2 32 2/7-50 1/4
Indoor Unit
Indoor Unit Model GWC18MC-D3DNA3F/I
GWC18MC-D3DNA5F/I
Indoor Unit Product Code CB171N08800
CB162N09400
Fan Type Cross-ow
Fan Diameter Length(DXL) inch Φ3 6/7X28
Cooling Speed(S/H/M/L) r/min 1500/1200/1050/900
Heating Speed(S/H/M/L) r/min /
Fan Motor Power Output W 20
Fan Motor RLA A 0.32
Fan Motor Capacitor μF 1.5
Evaporator Form WAluminum Fin-copper Tube
Evaporator Pipe Diameter inch Φ2/7
Evaporator Row-n Gap inch 2-1/18
Evaporator Coil Length (LXDXW) inch 28 1/7X1X12
Swing Motor Model MP28VB
Swing Motor Power Output W 2.5
Fuse Current A 3.15
Sound Pressure Level (S/H/M/L) dB (A) 49/44/40/35
Sound Power Level (S/H/M/L) dB (A) 59/54/50/45
Dimension (WXHXD) inch 37X11 3/4X7 7/8
Dimension of Carton Box (LXWXH) inch 39 3/4X15X11 2/9
Dimension of Package (LXWXH) inch 39 7/8X15X11 4/5
Net Weight lb 24.3
Gross Weight lb 30.9

3
Technical Information
Service Manual
The above data is subject to change without notice. Please refer to the nameplate of the unit.
Outdoor Unit
Outdoor Unit Model GWC18MC-D3DNA3D/O
Outdoor Unit Product Code CB171W06800
Compressor Manufacturer MITSUBISHI ELECTRIC (GUANGZHOU)
COMPRESSOR CO.,LTD
Compressor Model SNB130FGAMC
Compressor Oil FV50S/PVE
Compressor Type Rotary
Compressor LRA. A 13.8
Compressor RLA A 4.1
Compressor Power Input W 1200
Compressor Overload Protector INT11L-6578
Throttling Method Electron expansion valve
Set Temperature Range °F 61~86
Cooling Operation Ambient Temperature Range °F 19.4~109
Heating Operation Ambient Temperature Range °F /
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter inch Φ2/7
Condenser Rows-n Gap inch 2-1/18
Condenser Coil Length (LXDXW) inch 33X1 1/2X26
Fan Motor Speed rpm 800
Fan Motor Power Output W 60
Fan Motor RLA A 0.28
Fan Motor Capacitor μF /
Outdoor Unit Air Flow Volume CFM 1883
Fan Type Axial-ow
Fan Diameter inch 20 1/2
Defrosting Method /
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for the
Discharge Side PSIG 550
Permissible Excessive Operating Pressure for the
Suction Side PSIG 450
Sound Pressure Level (H/M/L) dB (A) 56/-/-
Sound Power Level (H/M/L) dB (A) 66/-/-
Dimension (WXHXD) inch 37 3/5X27 5/9X15 3/5
Dimension of Carton Box (LXWXH) inch 40 2/5X18X29
Dimension of Package (LXWXH) inch 40 1/2X18X29 1/2
Net Weight lb 99.2
Gross Weight lb 110.3
Refrigerant R410A
Refrigerant Charge oz 24 3/5
Connection
Pipe
Connection Pipe Length ft 24 3/5
Connection Pipe Gas Additional Charge oz/ft. 0.2
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 1/2
Max Distance Height ft 32.8
Max Distance Length ft 82
Note: The connection pipe applies metric diameter.

4Technical Information
Service Manual
Model GWH18MC-D3DNA3F
GWH18MC-D3DNA8F
GWH18MC-D3DNA3F
GWH18MC-D3DNA5F
Product Code CB171008900
CB173004900
CB171008901
CB162009301
Power
Supply
Rated Voltage V ～208/230 208/230
Rated Frequency Hz 60 60
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity(Min ～Max) Btu/h 18000(5970~22350) 18000(5970~22350)
Heating Capacity(Min ～Max) Btu/h 19800(4100~22000) 19800(4100~22000)
Cooling Power Input(Min ～Max) W 1500(300~2650) 1500(300~2650)
Heating Power Input(Min ～Max) W 1650(335~2750) 1650(335~2750)
Cooling Current Input A 6.65 6.65
Heating Current Input A 7.32 7.32
Rated Input W 2750 2750
Rated Current A 12.20 12.20
Air Flow Volume (S/H/M/L) CFM 500/459/383/324 500/459/383/324
Dehumidifying Volume Pint/h 3.8 3.8
EER (Btu/h)/W 12 12
COP (Btu/h)/W 12 12
SEER 18 18
HSPF 10 10
Application Area yd2 32 2/7-50 1/4 32 2/7-50 1/4
Indoor Unit
Indoor Unit Model GWH18MC-D3DNA3F/I
GWH18MC-D3DNA8F/I
GWH18MC-D3DNA3F/I
GWH18MC-D3DNA5F/I
Indoor Unit Product Code CB171N08900
CB173N04900
CB171N08900
CB162N09300
Fan Type Cross-ow Cross-ow
Fan Diameter Length(DXL) inch Φ3 6/7X28 Φ3 6/7X28
Cooling Speed(S/H/M/L) r/min 1500/1200/1050/900 1500/1200/1050/900
Heating Speed(S/H/M/L) r/min 1500/1250/1150/1050 1500/1250/1150/1050
Fan Motor Power Output W 20 20
Fan Motor RLA A 0.32 0.32
Fan Motor Capacitor μF 1.5 1.5
Evaporator Form WAluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter inch Φ2/7 Φ2/7
Evaporator Row-n Gap inch 2-1/18 2-1/18
Evaporator Coil Length (LXDXW) inch 28 1/7X1X12 28 1/7X1X12
Swing Motor Model MP28VB MP28VB
Swing Motor Power Output W 2.5 2.5
Fuse Current A 3.15 3.15
Sound Pressure Level (S/H/M/L) dB (A) 49/44/40/35 49/44/40/35
Sound Power Level (S/H/M/L) dB (A) 59/54/50/45 59/54/50/45
Dimension (WXHXD) inch 37X11 3/4X7 7/8 37X11 3/4X7 7/8
Dimension of Carton Box (LXWXH) inch 39 3/4X15X11 2/9 39 3/4X15X11 2/9
Dimension of Package (LXWXH) inch 39 7/8X15X11 4/5 39 7/8X15X11 4/5
Net Weight lb 24.3 24.3
Gross Weight lb 30.9 30.9

5
Technical Information
Service Manual
Outdoor Unit
Outdoor Unit Model GWH18MC-D3DNA3D/O GWH18MC-D3DNA3D/O
(electric heating band)
Outdoor Unit Product Code CB171W04700 CB171W04701
Compressor Manufacturer
MITSUBISHI ELECTRIC
(GUANGZHOU) COMPRESSOR
CO.,LTD
MITSUBISHI ELECTRIC
(GUANGZHOU)
COMPRESSOR CO.,LTD
Compressor Model SNB130FGAMC SNB130FGAMC
Compressor Oil FV50S/PVE FV50S/PVE
Compressor Type Rotary Rotary
Compressor LRA. A 13.8 13.8
Compressor RLA A 4.1 4.1
Compressor Power Input W 1200 1200
Compressor Overload Protector INT11L-6578 INT11L-6578
Throttling Method Electron expansion valve Electron expansion valve
Set Temperature Range °F 61~86 61~86
Cooling Operation Ambient Temperature
Range °F 19.4~109 19.4~109
Heating Operation Ambient Temperature
Range °F 19.4~75.2 19.4~75.2
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter inch Φ2/7 Φ2/7
Condenser Rows-n Gap inch 2-1/18 2-0.05
Condenser Coil Length (LXDXW) inch 33X1 1/2X26 33X1 1/2X26
Fan Motor Speed rpm 800 800
Fan Motor Power Output W 60 60
Fan Motor RLA A 0.28 0.28
Fan Motor Capacitor μF / /
Outdoor Unit Air Flow Volume CFM 1883 1883
Fan Type Axial-ow Axial-ow
Fan Diameter inch 20 1/2 20 1/2
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 PSIG 550 550
Permissible Excessive Operating Pressure
for the Suction Side PSIG 450 450
Sound Pressure Level (H/M/L) dB (A) 56/-/- 56/-/-
Sound Power Level (H/M/L) dB (A) 66/-/- 66/-/-
Dimension (WXHXD) inch 37 3/5X27 5/9X15 3/5 37 3/5X27 5/9X15 3/5
Dimension of Carton Box (LXWXH) inch 40 2/5X18X29 40 2/5X18X29
Dimension of Package (LXWXH) inch 40 1/2X18X29 1/2 40 1/2X18X29 1/2
Net Weight lb 99.2 99.2
Gross Weight lb 110.3 110.3
Refrigerant R410A R410A
Refrigerant Charge oz 49.39 49.39
Connection
Pipe
Connection Pipe Length ft 24 3/5 24 3/5
Connection Pipe Gas Additional Charge oz/ft. 0.2 0.2
Outer Diameter Liquid Pipe inch 1/4 1/4
Outer Diameter Gas Pipe inch 1/2 1/2
Max Distance Height ft 33 33
Max Distance Length ft 82 82
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice. Please refer to the nameplate of the unit.

6Technical Information
Service Manual
Model GWC24MD-D3DNA3F
GWC24MD-D3DNA5F
Product Code CB171009700
CB162009600
Power
Supply
Rated Voltage V ～208/230
Rated Frequency Hz 60
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min ～Max) Btu/h 21400(9600~25000)
Heating Capacity(Min ～Max) Btu/h /
Cooling Power Input(Min ～Max) W 1780(500~2650)
Heating Power Input(Min ～Max) W /
Cooling Current Input A 7.9
Heating Current Input A /
Rated Input W 2650
Rated Current A 11.76
Air Flow Volume (S/H/M/L) CFM 500/459/383/324
Dehumidifying Volume Pint/h 5.28
EER (Btu/h)/W 12
COP (Btu/h)/W /
SEER 18
HSPF /
Application Area yd2 32 2/7-50 1/4
Indoor Unit
Indoor Unit Model GWC24MD-D3DNA3F/I
GWC24MD-D3DNA5F/I
Indoor Unit Product Code CB171N09700
CB162N09600
Fan Type Cross-ow
Fan Diameter Length(DXL) inch Φ3 6/7X30/1/8
Cooling Speed(S/H/M/L) r/min 1500/1200/1050/900
Heating Speed(S/H/M/L) r/min /
Fan Motor Power Output W 60
Fan Motor RLA A 0.24
Fan Motor Capacitor μF /
Evaporator Form WAluminum Fin-copper Tube
Evaporator Pipe Diameter inch Φ2/7
Evaporator Row-n Gap inch 2-1/17
Evaporator Coil Length (LXDXW) inch 30 1/8X1X13 1/2
Swing Motor Model MP35XX
Swing Motor Power Output W 3
Fuse Current A 3.15
Sound Pressure Level (S/H/M/L) dB (A) 53/45/41/37
Sound Power Level (S/H/M/L) dB (A) 63/55/51/47
Dimension (WXHXD) inch 39 2/3X12 2/5X8 5/8
Dimension of Carton Box (LXWXH) inch 42 1/4X15 5/9X12 1/3
Dimension of Package (LXWXH) inch 42 1/3X15 2/3X12 21/23
Net Weight lb 29.8
Gross Weight lb 37.5

7
Technical Information
Service Manual
Outdoor Unit
Outdoor Unit Model GWC24MD-D3DNA3D/O
Outdoor Unit Product Code CB171W06900
Compressor Manufacturer MITSUBISHI ELECTRIC (GUANGZHOU)
COMPRESSOR CO. LTD
Compressor Model SNB150FGAMC
Compressor Oil PVE/FV50S
Compressor Type Rotary
Compressor LRA. A 18.50
Compressor RLA A 4.90
Compressor Power Input W 1420
Compressor Overload Protector 1NT11L-6578
Throttling Method Electron expansion valve
Set Temperature Range °F 61~86
Cooling Operation Ambient Temperature Range °F 19.4~109
Heating Operation Ambient Temperature Range °F /
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter inch Φ2/7
Condenser Rows-n Gap inch 2-1/18
Condenser Coil Length (LXDXW) inch 38X1 1/2X29 4/9
Fan Motor Speed rpm 800
Fan Motor Power Output W 90
Fan Motor RLA A 1.1
Fan Motor Capacitor μF 4
Outdoor Unit Air Flow Volume CFM 2354
Fan Type Axial-ow
Fan Diameter inch 20 3/4
Defrosting Method /
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for the
Discharge Side PSIG 550
Permissible Excessive Operating Pressure for the Suction
Side PSIG 450
Sound Pressure Level (H/M/L) dB (A) 58/-/-
Sound Power Level (H/M/L) dB (A) 68/-/-
Dimension (WXHXD) inch 38 4/7X31 1/9X16 4/5
Dimension of Carton Box (LXWXH) inch 42 1/2X19X33
Dimension of Package (LXWXH) inch 42 2/3X19 1/5X33 2/3
Net Weight lb 119.1
Gross Weight lb 130.1
Refrigerant R410A
Refrigerant Charge oz 56.4
Connection
Pipe
Connection Pipe Length ft 24 3/5
Connection Pipe Gas Additional Charge oz/ft. 0.5
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 5/8
Max Distance Height ft 32.8
Max Distance Length ft 82
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice. Please refer to the nameplate of the unit.