Gree GWC18QD-D3DNA6E (LC) User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual

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 ........................................................................................7
2.3 Capacity Variation Ratio According to Temperature .........................................................7
2.4 Noise Curve......................................................................................................................8
2.5 Cooling and Heating Data Sheet in Rated Frequency .....................................................8
3. Outline Dimension Diagram........................................................................9
3.1 Indoor Unit........................................................................................................................9
3.2 Outdoor Unit ...................................................................................................................10
4. Refrigerant System Diagram....................................................................11
5. Electrical Part.........................................................................................................12
5.1 Wiring Diagram...............................................................................................................12
5.2 PCB Printed Diagram .....................................................................................................14
6. Function and Control......................................................................................16
6.1 Remote Controller Introduction .....................................................................................16
6.2 Brief Description of Modes and Functions......................................................................20
Part Ⅱ: Installation and Maintenance .................................................29
7. Notes for Installation and Maintenance..........................................29
8. Installation................................................................................................................31
8.1 Installation Dimension Diagram......................................................................................31
8.2 Installation Parts-checking ............................................................................................33
8.3 Selection of Installation Location....................................................................................33
8.4 Electric Connection Requirement ..................................................................................33
8.5 Installation of Indoor Unit................................................................................................33
8.6 Installation of Outdoor Unit.............................................................................................36
8.7 Vacuum Pumping and Leak Detection ...........................................................................37
8.8 Check after Installation and Test Operation ...................................................................37

Service Manual
Table of contents Table of contents
9. Maintenance............................................................................................................38
9.1 Precautions before Maintenance....................................................................................38
9.2 Error Code List ...............................................................................................................39
9.3 Troubleshooting for Main Malfunction ............................................................................42
9.4 Troubleshooting for Normal Malfunction.........................................................................56
10. Exploded View and Parts List ..............................................................58
10.1 Indoor Unit....................................................................................................................58
10.2 Outdoor Unit .................................................................................................................76
11. Removal Procedure.......................................................................................80
11.1 Removal Procedure of Indoor Unit ...............................................................................80
11.2 Removal Procedure of Outdoor Unit ............................................................................85
Appendix:........................................................................................................................90
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................90
Appendix 2: Conguration of Connection Pipe.....................................................................90
Appendix 3: Pipe Expanding Method ...................................................................................91
Appendix 4: List of Resistance for Temperature Sensor ......................................................92

1
Technical Information
Service Manual
1. Summary
Indoor Unit:
Part Ⅰ: Technical Information
A6 Panel
B4 Panel
B2 Panel
C2 Panel
B8 Panel A1 Panel
GWH18QD-D3DNA5E/I(CB425N04701 CB425N04702)
GWH24QE-D3DNA5E/I(CB425N05001 CB425N05002)
GWH18QD-D3DNA5E/I(CB425N04700)
GWC18QD-D3DNA5E/I GWC24QE-D3DNA5E/I
GWH24QE-D3DNA5E/I(CB425N05000 )

2Technical Information
Service Manual
Model List:
No Model Product code Indoor model Indoor product
code Outdoor model Outdoor product code
1GWC18QD-D3DNA6E(LC) CB427001700 GWC18QD-D3DNA6E/I CB427N01700
GWC18QD-D3DNA6E/O(LC) CB427W01700
2GWC18QD-D3DNB4E(LC) CB434001500 GWC18QD-D3DNB4E/I CB434N01500
3GWC18QD-D3DNB2E(LC) CB432002700 GWC18QD-D3DNB2E/I CB432N02700
4GWC18QD-D3DNA5E(LC) CB425004800 GWC18QD-D3DNA5E/I CB425N04800
5GWC18QD-D3DNC2E (LC) CB439000500 GWC18QD-D3DNC2E/I CB439N00500
6GWC18QD-D3DNB8E(LC) CB438001900 GWC18QD-D3DNB8E/I CB438N01900
7GWC18QD-D3DNA1E(LC) CB419007900 GWC18QD-D3DNA1E/I CB419N07900
8GWH18QD-D3DNA1E(LCLH) CB419008000 GWH18QD-D3DNA1E/I CB419N08000
GWH18QD-D3DNA6E/O(LCLH) CB427W02000
9GH18QD-D3DNA6E(LCLH) CB427002000 GWH18QD-D3DNA6E/I CB427N02000
10 GWH18QD-D3DNB4E(LCLH) CB434001200 GWH18QD-D3DNB4E/I CB434N01200
11 GWH18QD-D3DNB2E(LCLH) CB432002800 GWH18QD-D3DNB2E/I CB432N02800
12
GWH18QD-D3DNA5E(LCLH)
CB425004700
GWH18QD-D3DNA5E/I
CB425N04700
13 CB425004701 CB425N04701
14 CB425004702 CB425N04702
15 GWH18QD-D3DNC2E(LCLH) CB439000600 GWH18QD-D3DNC2E/I CB439N00600
16 GWH18QD-D3DNB8E(LCLH) CB438001500 GWH18QD-D3DNB8E/I CB438N01500
17 GWC24QE-D3DNA6E(LC) CB427002300 GWC24QE-D3DNA6E/I CB427N02300
GWC24QE-D3DNA6E/O(LC) CB427W02300
18 GWC24QE-D3DNB4E(LC) CB434001900 GWC24QE-D3DNB4E/I CB434N01900
19 GWC24QE-D3DNB2E(LC) CB432003000 GWC24QE-D3DNB2E/I CB432N03000
20 GWC24QE-D3DNA5E(LC) CB425004900 GWC24QE-D3DNA5E/I CB425N04900
21 GWC24QE-D3DNC2E(LC) CB439000700 GWC24QE-D3DNC2E/I CB439N00700
22 GWC24QE-D3DNB8E(LC) CB438001700 GWC24QE-D3DNB8E/I CB438N01700
23 GWC24QE-D3DNA1E(LC) CB419007200 GWC24QE-D3DNA1E/I CB419N07200
24 GWH24QE-D3DNA1E(LCLH) CB419007800 GWH24QE-D3DNA1E/I CB419N07800
25 GWH24QE-D3DNA6E(LCLH) CB427002400 GWH24QE-D3DNA6E/I CB427N02400
GWH24QE-D3DNA6E/O(LCLH) CB427W02400
26 GWH24QE-D3DNB4E(LCLH) CB434001400 GWH24QE-D3DNB4E/I CB434N01400
27 GWH24QE-D3DNB2E(LCLH) CB432002900 GWH24QE-D3DNB2E/I CB432N02900
28 GWH24QE-D3DNC2E(LCLH) CB439001500 GWH24QE-D3DNC2E/I CB439N01500
29
GWH24QE-D3DNA5E(LCLH)
CB425005000
GWH24QE-D3DNA5E/I
CB425N05000
30 CB425005001 CB425N05001
31 CB425005002 CB425N05002
32 GWH24QE-D3DNB8E(LCLH) CB438001800 GWH24QE-D3DNB8E/I CB438N01800
Outdoor Unit:
GWC18QD-D3DNA6E/O(LC)
GWH18QD-D3DNA6E/O(LCLH)
GWC24QE-D3DNA6E/O(LC)
GWH24QE-D3DNA6E/O(LC)(LH)
Remote Controller:
YAN1F1F

3
Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model
1.GWC18QD-D3DNA6E(LC)
2.GWC18QD-D3DNB4E(LC)
3.GWC18QD-D3DNB2E(LC)
4.GWC18QD-D3DNA5E(LC)
5.GWC18QD-D3DNC2E(LC)
6.GWC18QD-D3DNB8E(LC)
7.GWC18QD-D3DNA1E(LC)
1.GWH18QD-D3DNA6E(LCLH)
2.GWH18QD-D3DNB4E(LCLH)
3.GWH18QD-D3DNB2E(LCLH)
4.GWH18QD-D3DNC2E(LCLH)
5.GWH18QD-D3DNB8E(LCLH)
6.GWH18QD-D3DNA5E(LCLH)
7.GWH18QD-D3DNA1E(LCLH)
Product Code
1.CB427001700 2.CB434001500
3.CB432002700 4.CB425004800
5.CB439000500 6.CB438001900
7.CB419007900
1.CB427002000 2.CB434001200
3.CB432002800 4.CB439000600
5.CB438001500 6.CB425004700
CB425004701 CB425004702
7.CB419008000
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(7165~20001) 18000(7165~20001)
Heating Capacity(Min~Max) Btu/h / 19000(7336~23498)
Cooling Power Input(Min~Max) W1800(570~2600) 1920(570~2600)
Heating Power Input(Min~Max) W/ 2000(580~2600)
Cooling Power Current A 8 8.5
Heating Power Current A / 8.9
Rated Input W 2600 2600
Rated Current A 11.54 11.54
Air Flow Volume(SH/H/M/L) CFM 471/403/341/282 471/403/341/282
Dehumidifying Volume Pint/h 3.80 3.80
EER (Btu/h)/W 10.00 9.37
COP (Btu/h)/W / 9.50
SEER 16.00 16.00
HSPF / 9.00
Application Area yd227.50-40.66 27.50-40.66
Indoor Unit
Model of indoor unit
1.GWC18QD-D3DNA6E/I
2.GWC18QD-D3DNB4E/I
3.GWC18QD-D3DNB2E/I
4.GWC18QD-D3DNA5E/I
5.GWC18QD-D3DNC2E/I
6.GWC18QD-D3DNB8E/I
7.GWC18QD-D3DNA1E/I
1.GWH18QD-D3DNA6E/I
2.GWH18QD-D3DNB4E/I
3.GWH18QD-D3DNB2E/I
4.GWH18QD-D3DNC2E/I
5.GWH18QD-D3DNB8E/I
6.GWH18QD-D3DNA5E/I
7.GWH18QD-D3DNA1E/I
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) inch Φ4 3/16X27 13/16 Φ4 3/16X27 13/16
Fan Motor Cooling Speed(SH/H/M/L) r/min 1350/1200/1050/900 1350/1200/1050/900
Fan Motor Heating Speed(SH/H/M/L) r/min / 1300/1200/1100/900
Output of Fan Motor W 35 35
Fan Motor RLA A 0.37 0.37
Fan Motor Capacitor μF 2.5 2.5
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ5/16 Φ5/16
Row-n Gap inch 2-1/16 2-1/16
Coil Length (LXDXW) inch 28 1/8X1X12 28 1/8X1X12
Swing Motor Model MP35CJ MP35CJ
Output of Swing Motor W 2.5 2.5
Fuse A 3.15 3.15
Sound Pressure Level(SH/H//M/L) dB (A) 46/42/39/35 46/42/39/35
Sound Power Level(SH/H//M/L) dB (A) 56/52/49/45 56/52/49/45
Dimension (WXHXD) inch 38 3/16X11 13/16X8 13/16 38 3/16X11 13/16X8 13/16
Dimension of Carton Box (LXWXH) inch 40 7/8X15X12 40 7/8X15X12
Dimension of Package (LXWXH) inch 41X15X12 5/8 41X15X12 5/8
Net Weight Ib 29.8 29.8
Gross Weight Ib 36.4 36.4

4Technical 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 GWC18QD-D3DNA6E/O(LC) GWH18QD-D3DNA6E/O(LCLH)
Outdoor Unit Product Code CB427W01700 CB427W02000
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO.,LTD
ZHUHAI LANDA COMPRESSOR
CO.,LTD
Compressor Model QXA-B141zF030A QXA-B141zF030A
Compressor Oil RB68EP RB68EP
Compressor Type Rotary Rotary
Compressor Locked Rotor Amp (L.R.A) A 25 25
Compressor RLA A 7.20 7.20
Compressor Power Input W 1440 1440
Overload Protector 1NT11L-6233 or KSD115OC or
HPC115/95U1
1NT11L-6233 or KSD115OC or
HPC115/95U1
Throttling Method Capillary Capillary
Operation temp ºF 60.8~86 60.8~86
Ambient temp (cooling) ºF 0~115 0~115
Ambient temp (heating) ºF / -4~75
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ5/16 Φ3/8
Rows-n Gap inch 1-1/16 1-1/16
Coil Length (LXDXW) inch 34 11/16X26X7/8 33 5/8X26X7/8
Fan Motor Speed rpm 800 800
Output of Fan Motor W 60 60
Fan Motor RLA A 0.365 0.365
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit CFM 1883 1883
Fan Type Axial-ow Axial-ow
Fan Diameter inch Φ20 1/2 Φ20 1/2
Defrosting Method / Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IP24
Permissible Excessive Operating
Pressure for the Discharge Side ISPG 623 623
Permissible Excessive Operating
Pressure for the Suction Side ISPG 362 362
Sound Pressure Level (H/M/L) dB (A) 56/-/- 56/-/-
Sound Power Level (H/M/L) dB (A) 66/-/- 66/-/-
Dimension (WXHXD) inch 38X27 9/16X15 5/8 38X27 9/16X15 5/8
Dimension of Carton Box (LXWXH) inch 40 3/8X17 7/8X29 40 3/8X17 7/8X29
Dimension of Package (LXWXH) inch 40 1/2X18X29 1/2 40 1/2X18X29 1/2
Net Weight Ib 90.4 95.9
Gross Weight Ib 100.3 105.8
Refrigerant R410A R410A
Refrigerant Charge oz 35.3 49.4
Connection
Pipe
Length ft 24.6 24.6
Gas Additional Charge oz/ft 0.2 0.2
Outer Diameter Liquid Pipe inch Φ1/4 Φ1/4
Outer Diameter Gas Pipe inch Φ1/2 Φ1/2
Max Distance Height ft 32.8 32.8
Max Distance Length ft 82 82
Note:The connection pipe applies metric diameter.

5
Technical Information
Service Manual
Model
1.GWC24QE-D3DNA6E(LC)
2.GWC24QE-D3DNB4E(LC)
3.GWC24QE-D3DNB2E(LC)
4.GWC24QE-D3DNA5E(LC)
5.GWC24QE-D3DNC2E(LC)
6.GWC24QE-D3DNB8E(LC)
7.GWC24QE-D3DNA1E(LC)
1.GWH24QE-D3DNA6E(LCLH)
2.GWH24QE-D3DNB4E(LCLH)
3.GWH24QE-D3DNB2E(LCLH)
4.GWH24QE-D3DNC2E(LCLH)
5.GWH24QE-D3DNB8E(LCLH)
6.GWH24QE-D3DNA5E(LCLH)
7.GWH24QE-D3DNA1E(LCLH)
Product Code
1.CB427002300 2.CB434001900
3.CB432003000 4.CB425004900
5.CB439000700 6.CB438001700
7.CB419007200
1.CB427002400 2.CB434001400
3.CB432002900 4.CB439001500
5.CB438001800 6.CB425005000
CB425005001 CB425005002
7.CB419007800
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 22000(8630~23200) 22000(8630~23200)
Heating Capacity(Min~Max) Btu/h / 23000(8650~26000)
Cooling Power Input(Min~Max) W2260(600~27000) 2260(600~27000)
Heating Power Input(Min~Max) W/ 2300(610~2750)
Cooling Power Current A 10.03 10.03
Heating Power Current A / 10.20
Rated Input W 2700 2750
Rated Current A 11.98 12.20
Air Flow Volume(SH/H/M/L) CFM 706/647/589/530 706/647/589/530
Dehumidifying Volume Pint/h 4.23 4.23
EER (Btu/h)/W 9.73 9.73
COP (Btu/h)/W / 10.00
SEER 16.00 16.00
HSPF / 9.00
Application Area yd232.29-50.23 32.29-50.23
Indoor Unit
Model of indoor unit
1.GWC24QE-D3DNA6E/I
2.GWC24QE-D3DNB4E/I
3.GWC24QE-D3DNB2E/I
4.GWC24QE-D3DNA5E/I
5.GWC24QE-D3DNC2E/I
6.GWC24QE-D3DNB8E/I
7.GWC24QE-D3DNA1E/I
1.GWH24QE-D3DNA6E/I
2.GWH24QE-D3DNB4E/I
3.GWH24QE-D3DNB2E/I
4.GWH24QE-D3DNC2E/I
5.GWH24QE-D3DNB8E/I
6.GWH24QE-D3DNA5E/I
7.GWH24QE-D3DNA1E/I
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) inch Φ4 1/4X32 11/16 Φ4 1/4X32 11/16
Fan Motor Cooling Speed(SH/H/M/L) r/min 1250/1100/900/800 1250/1100/900/800
Fan Motor Heating Speed(SH/H/M/L) r/min / 1150/1000/900/850
Output of Fan Motor W 30 30
Fan Motor RLA A 0.32 0.32
Fan Motor Capacitor μF 3 3
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ5/16 Φ5/16
Row-n Gap inch 2-1/16 2-1/16
Coil Length (LXDXW) inch 33 1/4X1X13 1/2 33 1/4X1X13 1/2
Swing Motor Model MP35CJ MP35CJ
Output of Swing Motor W 2.5 2.5
Fuse A 3.15 3.15
Sound Pressure Level(SH/H//M/L) dB (A) 48/44/40/36 48/44/40/36
Sound Power Level(SH/H//M/L) dB (A) 58/54/50/46 58/54/50/46
Dimension (WXHXD) inch 42 7/16X12 13/16X9 11/16 42 7/16X12 13/16X9 11/16
Dimension of Carton Box (LXWXH) inch 45X16 1/8X13 3/16 45X16 1/8X13 3/16
Dimension of Package (LXWXH) inch 45 3/16X16 1/4X13 3/4 45 3/16X16 1/4X13 3/4
Net Weight Ib 34.2 37.5
Gross Weight Ib 41.9 45.2

6Technical Information
Service Manual
Outdoor Unit
Model of Outdoor Unit GWC24QE-D3DNA6E/O(LC) GWH24QE-D3DNA6E/O(LCLH)
Outdoor Unit Product Code CB427W02300 CB427W02400
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO.,LTD
ZHUHAI LANDA COMPRESSOR
CO.,LTD
Compressor Model QXA-B141zF030A QXA-B141zF030A
Compressor Oil 68EP 68EP
Compressor Type Rotary Rotary
Compressor Locked Rotor Amp (L.R.A) A 25.00 25.00
Compressor RLA A 7.20 7.20
Compressor Power Input W 1440 1440
Overload Protector 1NT11L-6233 or KSD115℃ or
HPC115/95U1
1NT11L-6233 or KSD115℃ or
HPC115/95U1
Throttling Method Capillary Capillary
Operation temp ºF 60.8~86 60.8~86
Ambient temp (cooling) ºF 0~115 0~115
Ambient temp (heating) ºF / -4~75
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ3/8 Φ3/8
Rows-n Gap inch 2-1/16 2-1/16
Coil Length (LXDXW) inch 33 5/16X1 3/4X26 33 5/16X1 3/4X26
Fan Motor Speed rpm 800 800
Output of Fan Motor W 60 60
Fan Motor RLA A 0.365 0.365
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit CFM 1883 1883
Fan Type Axial-ow Axial-ow
Fan Diameter inch Φ20 1/2 Φ20 1/2
Defrosting Method / Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IP24
Permissible Excessive Operating
Pressure for the Discharge Side ISPG 623 623
Permissible Excessive Operating
Pressure for the Suction Side ISPG 362 362
Sound Pressure Level (H/M/L) dB (A) 59/-/- 59/-/-
Sound Power Level (H/M/L) dB (A) 69/-/- 69/-/-
Dimension (WXHXD) inch 38X27 9/16X15 5/8 38X27 9/16X15 5/8
Dimension of Carton Box (LXWXH) inch 40 3/8X17 7/8X29 40 3/8X17 7/8X29
Dimension of Package (LXWXH) inch 40 1/2X18X29 1/2 40 1/2X18X29 1/2
Net Weight Ib 103.6 110.3
Gross Weight Ib 113.6 120.2
Refrigerant R410A R410A
Refrigerant Charge oz 56.45 65.25
Connection
Pipe
Length ft 24.6 24.6
Gas Additional Charge oz/ft 0.5 0.2
Outer Diameter Liquid Pipe inch Φ1/4 Φ1/4
Outer Diameter Gas Pipe inch Φ5/8 Φ5/8
Max Distance Height ft 32.8 32.8
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.

7
Technical Information
Service Manual
2.2 Operation Characteristic Curve
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
CoolingHeating
24K
24K
18K
18K
Conditions
Indoor:DB80°F/WB66.9°F
Outdoor:DB95°F
Indoor air flow:Super High
Pipe length:24.6ft
Conditions
Indoor:DB70°F/WB60°F
Outdoor:DB19.94°F/WB19.04°F
Indoor air flow:Super High
Pipe length:24.6ft
2.3 Capacity Variation Ratio According to Temperature
Cooling
Cooling
Heating
Heating
-4 514
110
100
90
80
70
60
50
40
23 32 41 50
Outdoor temp.(°F)
Capacity ratio (%)
89.6 91.4 93.295 96.8 98.6 100.4 102.2 109.4 104 105.8 107.6
100
105
95
90
85
80
75
70
65
60
55
50
Outdoor temp.(°F)
Capacity ratio (%)
Conditions
Indoor:DB
80°F /WB66.9 °F
Outdoor:DB95°F
Indoor air flow:Super High
Pipe length:
24.6ft
Conditions
Indoor:DB
70°F
Outdoor:DB19.94°F/WB19.04°F
Indoor air flow:Super High
Pipe length:
24.6ft