Gree KW09HQ3D6D Series User manual

Service Manual
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GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Models:KW09HQ3D6D
KW12HQ3D6D
KW18HQ3D6D
KW24HQ3D6D
(Refrigerant R410A)

Table of Contents
Service Manual
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 ..........................................................................6
2.3 Capacity Variation Ratio According to Temperature ...................................6
2.4 Cooling and Heating Data Sheet in Rated Frequency.................................7
2.5 Noise Curve................................................................................................................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............................................................................................15
6. Function and Control......................................................................................19
6.1 Remote Controller Introduction .......................................................................19
6.2 GREE+ App Operation Manual ..........................................................................24
6.3 Ewpe Smart App Operation Manual.................................................................25
6.4 Brief Description of Modes and Functions ...................................................26
Part Ⅱ: Installation and Maintenance .................................................32
7. Notes for Installation and Maintenance..........................................32
8. Installation................................................................................................................35
8.1 Installation Dimension Diagram........................................................................35
8.2 Installation Parts-checking ................................................................................37
8.3 Selection of Installation Location.....................................................................37
8.4 Electric Connection Requirement ...................................................................37

Table of Contents
Service Manual
8.5 Installation of Indoor Unit....................................................................................37
8.6 Installation of Outdoor Unit ................................................................................40
8.7 Vacuum Pumping and Leak Detection............................................................41
8.8 Check after Installation and Test Operation .................................................41
9. Maintenance............................................................................................................42
9.1 Error Code List........................................................................................................42
9.2 Procedure of Troubleshooting ..........................................................................48
9.3 Troubleshooting for Normal Malfunction ......................................................61
10. Exploded View and Parts List ..............................................................63
10.1 Indoor Unit..............................................................................................................63
10.2 Outdoor Unit ..........................................................................................................69
11. Removal Procedure.......................................................................................73
11.1 Removal Procedure of Indoor Unit ................................................................73
11.2 Removal Procedure of Outdoor Unit.............................................................78
Appendix:........................................................................................................................88
Appendix 1: Reference Sheet of Celsius and Fahrenheit...............................88
Appendix 2: Conguration of Connection Pipe .................................................88
Appendix 3: Pipe Expanding Method.....................................................................89
Appendix 4: List of Resistance for Temperature Sensor................................90

1
Technical Information
Service Manual
1. Summary
Indoor Unit:
Outdoor Unit:
Remote Controller:
Part Ⅰ: Technical Information
KW18HQ3D6DO
KW24HQ3D6DO
KW09HQ3D6D
KW12HQ3D6D
KW18HQ3D6DI
KW24HQ3D6DI
YAG1FB2F(WiFi)
KW09HQ3D6DO
KW12HQ3D6DO

2Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model KW18HQ3D6D KW24HQ3D6D
Product Code CB460001300_X17278 CB460001600_X17278
Power Supply
Rated Voltage V~ 208/230 208/230
Rated Frequency Hz 50/60 50/60
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity Btu/h 18000 22000
Heating Capacity Btu/h 18000 24000
Cooling Power Input W 1330 1700
Heating Power Input W 1500 2000
Cooling Power Current A 5.7 7.54
Heating Power Current A 6.2 9.37
Rated Input W 2500 3700
Rated Current A 10.8 16.4
Air Flow Volume(SH/H/MH/M/ML/L/SL) CFM 736/677/618/559/500/459/353 824/765/706/647/589/500/383
Dehumidifying Volume Pint/h 1.8 2.5
EER (Btu/h)/W 13.53 13.00
COP (Btu/h)/W 12.00 12.00
SEER 24.5 21.50
SCOP 12 11.30
Application Area yd227.51-40.7 38.3~59.8
Indoor Unit
Model of indoor unit KW18HQ3D6DI KW24HQ3D6DI
Indoor Unit Product Code CB460N01300_X17278 CB460N01600_X17278
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) inch Φ4 1/4X32 11/16 Φ4 3/16X35
Fan Motor Cooling Speed
(SH/H/MH/M/ML/L/SL/Q) r/min 1400/1300/1200/1100/1000/850/800/600 1500/1300/1100/1000/900/850/800/600
Fan Motor Heating Speed
(SH/H/MH/M/ML/L/SL/Q) r/min 1400/1250/1100/1050/1000/900/850/- 1500/1300/1100/1050/1000/900/850/-
Output of Fan Motor W 60 70
Fan Motor RLA A 0.24 0.38
Fan Motor Capacitor μF / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Ф1/4 Ф1/4
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 MP35CP/MP24HF MP35CJ/MP24HF
Output of Swing Motor W 2.5/1.5 2.5/1.5
Fuse A 3.15 3.15
Sound Pressure Level (SH/H/
MH/M/ML/L/SL) dB (A) 51/48/45/42/39/36/34 54/49/46/43/40/37/34
Sound Power Level (SH/H/
MH/M/ML/L/SL) dB (A) 61/58/55/52/49/46/44 64/59/56/53/50/47/44
Dimension (WXHXD) inch 42 7/16X12 51/64X9 11/16 42 7/16X12 51/64X9 11/16
Dimension of Carton Box
(LXWXH) inch 45 5/64X16 9/64X13 3/16 45 5/64X16 9/64X13 3/16
Dimension of Package
(LXWXH) inch 45 13/64X16 17/64X13 25/32 45 13/64X16 17/64X13 25/32
Net Weight Ib 36.4 35.3
Gross Weight Ib 44.1 43

3
Technical Information
Service Manual
Outdoor Unit
Model of Outdoor Unit KW18HQ3D6DO KW24HQ3D6DO
Outdoor Unit Product Code CB437W01500_X17278 CB437W01700_X17278
Compressor Manufacturer/
Trademark
ZHUHAI GREE DAIKIN DEVICE CO.,
LTD
ZHUHAI LANDA COMPRESSOR CO.,
LTD
Compressor Model QXAT-D20zF030 QXAT-D20zF030
Compressor Oil RB68EP RB68EP
Compressor Type Rotary Rotary
Compressor L.R.A. A 30 30
Compressor RLA 15.5 16
Compressor Power Input W 2443 2443
Overload Protector 1NT11L-6233/HPC115/95/KSD115°C 1NT11L-6233/HPC115/95/KSD115°C
Throttling Method Capillary +Electron expansion valve Electron expansion valve
Operation temp ºF 61~86 61~86
Ambient temp (cooling) ºF 0~129 0~129
Ambient temp (heating) ºF -22~75 -22~75
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ1/4 Φ1/4
Rows-n Gap inch 2-1/16 3-1/16
Coil Length (LXDXW) inch 37 3/16X1 1/2X29 7/16 37 51/64X3 7/16X29 29/64
Fan Motor Speed rpm 820 820
Output of Fan Motor W 90 90
Fan Motor RLA A 0.65 0.65
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit CFM 2354 2354
Fan Type Axial-ow Axial-ow
Fan Diameter inch Φ17 1/4 Φ21 21/32
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IPX4 IPX4
Design Pressure(High) PSIG 550 550
Design Pressure(Low) PSIG 240 240
Sound Pressure Level (H/M/L) dB (A) 59/-/- 59/-/-
Sound Power Level (H/M/L) dB (A) 69/-/- 69/-/-
Dimension (WXHXD) inch 39 3/8X31 7/64X16 13/16 39 3/8X31 7/64X16 13/16
Dimension of Carton Box (LXWXH) inch 42 1/2X19X33 42 1/2X19X33
Dimension of Package (LXWXH) inch 42 41/64X19 7/32X33 21/32 42 41/64X19 7/32X33 21/32
Net Weight Ib 141.1 141.1
Gross Weight Ib 152.1 152.1
Refrigerant R410A R410A
Refrigerant Charge oz 70.6 81.1
Connection
Pipe
Length ft 24.6 24.6
Gas Additional Charge oz/ft 0.5 0.5
Outer Diameter Liquid Pipe inch 1/4 1/4
Outer Diameter Gas Pipe inch 5/8 5/8
Max Distance Height ft 65.6 98.4
Max Distance Length ft 131.2 164.0
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
Model KW09HQ3D6D KW12HQ3D6D
Product Code CB460005700_X17278 CB460001400_X17278
Power Supply
Rated Voltage V~ 208/230 208/230
Rated Frequency Hz 50/60 50/60
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity Btu/h 9000 12000
Heating Capacity Btu/h 9000 12200
Cooling Power Input W 540 785
Heating Power Input W 610 940
Cooling Power Current A 3.05 3.9
Heating Power Current A 3.15 5.3
Rated Input W 1500 1600
Rated Current A 6.2 6.5
Air Flow Volume(SH/H/MH/M/ML/L/SL) CFM 424/383/353/324/294/265/206 850/800/750/600/550/450/400
Dehumidifying Volume Pint/h 1.69 2.96
EER (Btu/h)/W 16.67 15.3
COP (Btu/h)/W 14.75 12.98
SEER 30.5 30.5
HSPF 14 14
Application Area yd219.1-28.7 19.14-28.70
Indoor Unit
Model of indoor unit KW09HQ3D6DI KW12HQ3D6DI
Indoor Unit Product Code CB460N05700_X17278 CB460N01400_X17278
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) inch Φ4 1/6X27 4/5 Ф4 3/16X27 1/2
Fan Motor Cooling Speed (SH/H/MH/M/
ML/L/SL) r/min 1250/1170/1100/1020/960/650/600 1400/1300/1200/1100/1000/900/80
0/550
Fan Motor Heating Speed (SH/H/MH/M/
ML/L/SL) r/min 1300/1200/1120/1040/960/880/800 1400/1270/1200/1130/1050/980/90
0/-
Output of Fan Motor W 60 60
Fan Motor RLA A 0.09 0.09
Fan Motor Capacitor μF / /
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ9/32 Ф1/4
Row-n Gap inch 2-1/16 2-1/16
Coil Length (LXDXW) inch 28 9/64X1X12 28 13/16X1X12
Swing Motor Model MP35CJ/MP24HF MP35CJ/MP24HF
Output of Swing Motor W 2.5/1.5 2.5/1.5
Fuse A 3.15 3.15
Sound Pressure Level (SH/H/MH/M/ML/
L/SL) dB (A) 46/40/38/36/33/31/19 49/46/43/40/37/34/30
Sound Power Level (SH/H/MH/M/ML/L/
SL) dB (A) 56/50/48/46/43/41/29 /
Dimension (WXHXD) inch 38 13/64X11 13/16X8 5/6 38 13/64X11 13/16X8 13/16
Dimension of Carton Box (LXWXH) inch 40 55/64X15X12 40 55/64X15X12
Dimension of Package (LXWXH) inch 41X15X12 39/64 41X15X12 39/64
Net Weight Ib 29.8 29.8
Gross Weight Ib 36.4 36.4

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 KW09HQ3D6DO KW12HQ3D6DO
Outdoor Unit Product Code CB497W00200_X17278 CB437W00900_X17278
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO., LTD
ZHUHAI LANDA COMPRESSOR
CO., LTD
Compressor Model QXAT-B121zE070 QXAT-B121zE070
Compressor Oil FV50S FV50S
Compressor Type Rotary Rotary
Compressor L.R.A. A 35.0 35.0
Compressor RLA 6.9 6.9
Compressor Power Input W 1070 1070
Overload Protector 1NT11L-6233/HPC115/95/
KSD115ºC
1NT11L-6233/HPC115/95/
KSD115ºC
Throttling Method Electron expansion valve Electron expansion valve +
Capillary Sub-assy
Operation temp ºF 61~86 61~86
Ambient temp (cooling) ºF 0~129 0~129
Ambient temp (heating) ºF -22~75 -22~75
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ9/32 Φ9/32
Rows-n Gap inch 2.5-1/18 2.5-1/18
Coil Length (LXDXW) inch 30.0X2 1/4X21 7/10 30.0X2 1/4X21 11/16
Fan Motor Speed rpm 800/500 850
Output of Fan Motor W 30 30
Fan Motor RLA A 0.28 0.24
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit CFM 1412 2400
Fan Type Axial-ow Axial-ow
Fan Diameter inch Φ17 1/4 Φ17 1/4
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IPX4 IPX4
Design Pressure(High) PSIG 550 550
Design Pressure(Low) PSIG 240 240
Sound Pressure Level (H/M/L) dB (A) 57/-/- 53/-/-
Sound Power Level (H/M/L) dB (A) / /
Dimension (WXHXD) inch 35 3/8X23 1/2X14 7/8 35 3/8X23 1/2X14 7/8
Dimension of Carton Box (LXWXH) inch 37 3/16X16 7/16X24 13/16 37 3/16X16 7/16X24 13/16
Dimension of Package (LXWXH) inch 37 5/16X16 9/16X25 3/8 37 5/16X16 9/16X25 3/8
Net Weight Ib 99.2 99.2
Gross Weight Ib 105.8 105.8
Refrigerant R410A R410A
Refrigerant Charge oz 55.4 49.4
Connection
Pipe
Length ft 24.6 24.6
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 32.8 50
Max Distance Length ft 49.2 100
Note:The connection pipe applies metric diameter.

6Technical Information
Service Manual
2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
Cooling
Cooling
Heating
Heating
Cooling Heating
24K
0
2
4
6
8
10
12
14
020406080100 120
0
2
4
6
8
10
12
14
020406080 100
120
Condition
Indoor:DB 81°F
WB66 °F
Indoor air flow: Super High
Pipe length:24.6ft
Condition
Indoor:DB 68°F
Indoor air flow: Super High
Pipe length:24.6ft
Compressor Frequency(Hz) Compressor Frequency(Hz)
Current(A)
Current(A)
Capacity ratio(%)
Capacity ratio(%)
Outdoor temp(°F)
89.695 100.4 107.6 118.4
60
70
80
90
100
110
120
50
40 40
50
120
110
100
90
80
70
60
50
44.63217.6-22-45
Outdoor temp(°F)
Condition
Indoor:DB81°F WB66°F
Indoor air flow: Super High
Pipe length:24.6 ft
Condition
Indoor:DB 68°F
Indoor air flow:Super High
Pipe length:24.6 ft

7
Technical Information
Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
Rated cooling
condition(°F) (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
revolution
(Hz)
Indoor Outdoor PSIG T1 (°F) T2 (°F)
81/66 95/75
18/24K 130.5~159.5 54 to 57 176 to 104 Super High High 75
09/12K 123.2~145 in:46~52
out:52~57
in:122~176
out:99~109 Suprt High High 58
Rated heating
condition(°F) (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
revolution
(Hz)
Indoor Outdoor P (MPa) T1 (°F) T2 (°F)
68/60 17/16
18/24K 365.3~391.3 158 to 104 34 to 41 Super High High 75
09/12K 362.3~435 in:122~176
out:99~109
in:34~37
out:36~41 Super High High 56
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: 24.6ft.
Cooling:
Heating: