Gree GWH07AAAXA-K3NNA5A User manual

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

Service Manual
Table of Contents
Table of Contents
Part I : Technical Information ..................................... 1
1. Summary......................................................................... 1
2. Specications............................................................... 4
2.1 Specication Sheet..................................................................................................4
2.2 Capacity Variation Ratio According to Temperature .................................16
2.3 Cooling and Heating Data Sheet in Rated Frequency...............................17
3. Outline Dimension Diagram................................. 18
3.1 Indoor Unit ................................................................................................................18
3.2 Outdoor Unit.............................................................................................................19
4. Refrigerant System Diagram ............................... 22
5. Electrical Part ............................................................. 23
5.1 Wiring Diagram .......................................................................................................23
5.2 PCB Printed Diagram............................................................................................28
6. Function and Control .............................................. 31
6.1 Remote Controller Introduction of YAW1F....................................................31
6.2 Brief Description of Modes and Functions ...................................................34
Part II : Installation and Maintenance .................. 38
7. Notes for Installation and Maintenance.......... 38
8. Installation ................................................................... 41
8.1 Installation Dimension Diagram........................................................................41
8.2 Installation Parts-checking ................................................................................43
8.3 Selection of Installation Location.....................................................................43
8.4 Electric Connection Requirement ....................................................................43
8.5 Installation of Indoor Unit....................................................................................43
8.6 Installation of Outdoor unit.................................................................................45
8.7 Vacuum Pumping and Leak Detection............................................................47
8.8 Check after Installation and Test operation..................................................47

Service Manual
Table of Contents
9. Maintenance................................................................ 48
9.1 Error Code List........................................................................................................48
9.2 Procedure of Troubleshooting ..........................................................................51
9.3 Troubleshooting for Normal Malfunction ......................................................61
10. Exploded View and Parts List........................... 63
10.1 Indoor Unit..............................................................................................................63
10.2 Outdoor Unit ..........................................................................................................71
11. Removal Procedure ............................................... 76
11.1 Removal Procedure of Indoor Unit ................................................................76
11.2 Removal Procedure of Outdoor Unit.............................................................86
Appendix:........................................................................ 106
Appendix 1: Reference Sheet of Celsius and Fahrenheit.............................106
Appendix 2: Conguration of Connection Pipe ...............................................106
Appendix 3: Pipe Expanding Method...................................................................107
Appendix 4: List of Resistance for Temperature Sensor..............................108

1
Technical Information
Service Manual
Outdoor Unit:
Indoor Unit:
A1 panel A2 panel
1. Summary
A3 Panel: A4 Panel:
A5 Panel: A6 Panel:
GWH07AGAXA-K3NNA1A/O
GWH09AGAXA-K3NNA1A/O
GWH18AGCXD-K3NNA1B/O
GWH12AGBXB-K3NNA1B/O
GWH24AADXE-K3NNA1A/O

2Technical Information
Service Manual
Remote Controller:
YAW1F
GWH28AGEXF-K3NNA1A/O

3
Technical Information
Service Manual
No. Model Product code Indoor model Indoor product
code Outdoor model Outdoor product code
Remote
Controller
1 GWH07AAAXA-K3NNA5A CA488007900 GWH07AAAXA-K3NNA5A/I CA488N07900
GWH07AGAXA-K3NNA1A/O CA385W11300
YAW1F
2 GWH07AAAXA-K3NNA2A CA477009801 GWH07AAAXA-K3NNA2A/I CA477N09801
3 GWH07AAAXA-K3NNA3A CA478007100 GWH07AAAXA-K3NNA3A/I CA478N07100
4 GWH07AAAXA-K3NNA2A CA477009800 GWH07AAAXA-K3NNA2A/I CA477N09800
5 GWH07AAAXA-K3NNA1A CA476012500 GWH07AAAXA-K3NNA1A/I CA476N12500
6 GWH07AAAXA-K3NNA3A CA478007101 GWH07AAAXA-K3NNA3A/I CA478N07101
7 GWH07AAAXA-K3NNA4A CA479007200 GWH07AAAXA-K3NNA4A/I CA479N07200
8 GWH09AAAXA-K3NNA2A CA477009700 GWH09AAAXA-K3NNA2A/I CA477N09700
GWH09AGAXA-K3NNA1A/O CA385W12800
9 GWH09AAAXA-K3NNA3A CA478007300 GWH09AAAXA-K3NNA3A/I CA478N07300
10 GWH09AAAXA-K3NNA5A CA488008000 GWH09AAAXA-K3NNA5A/I CA488N08000
11 GWH09AAAXA-K3NNA2A CA477009701 GWH09AAAXA-K3NNA2A/I CA477N09701
12 GWH09AAAXA-K3NNA1A CA476012401 GWH09AAAXA-K3NNA1A/I CA476N12401
13 GWH09AAAXA-K3NNA3A CA478007301 GWH09AAAXA-K3NNA3A/I CA478N07301
14 GWH09AAAXA-K3NNA1A CA476012400 GWH09AAAXA-K3NNA1A/I CA476N12400
15 GWH09AAAXA-K3NNA4A CA479007000 GWH09AAAXA-K3NNA4A/I CA479N07000
16 GWH09AAAXA-K3NNA4A CA479007001 GWH09AAAXA-K3NNA4A/I CA479N07001
17 GWH09AAAXA-K3NNA6A CA399002700 GWH09AAAXA-K3NNA6A/I CA399N02700
18 GWH12AABXB-K3NNA6B CA399002500 GWH12AABXB-K3NNA6B/I CA399N02500
GWH12AGBXB-K3NNA1B/O CA385W11400
19 GWH12AABXB-K3NNA4B CA479007100 GWH12AABXB-K3NNA4B/I CA479N07100
20 GWH12AABXB-K3NNA4B CA479007101 GWH12AABXB-K3NNA4B/I CA479N07101
21 GWH12AABXB-K3NNA3B CA478007201 GWH12AABXB-K3NNA3B/I CA478N07201
22 GWH12AABXB-K3NNA2B CA477009600 GWH12AABXB-K3NNA2B/I CA477N09600
23 GWH12AABXB-K3NNA5B CA488007801 GWH12AABXB-K3NNA5B/I CA488N07801
24 GWH12AABXB-K3NNA5B CA488007800 GWH12AABXB-K3NNA5B/I CA488N07800
25 GWH12AABXB-K3NNA3B CA478007200 GWH12AABXB-K3NNA3B/I CA478N07200
26 GWH18AACXD-K3NNA1B CA476011801 GWH18AACXD-K3NNA1B/I CA476N11801
GWH18AGCXD-K3NNA1B/O CA385W10100
27 GWH18AACXD-K3NNA3B CA478006800 GWH18AACXD-K3NNA3B/I CA478N06800
28 GWH18AACXD-K3NNA2B CA477009301 GWH18AACXD-K3NNA2B/I CA477N09301
29 GWH18AACXD-K3NNA3B CA478006801 GWH18AACXD-K3NNA3B/I CA478N06801
30 GWH18AACXD-K3NNA6B CA399002300 GWH18AACXD-K3NNA6B/I CA399N02300
31 GWH18AACXD-K3NNA2B CA477009300 GWH18AACXD-K3NNA2B/I CA477N09300
32 GWH18AACXD-K3NNA4B CA479006700 GWH18AACXD-K3NNA4B/I CA479N06700
33 GWH18AACXD-K3NNA1B CA476011800 GWH18AACXD-K3NNA1B/I CA476N11800
34 GWH18AACXD-K3NNA4B CA479006701 GWH18AACXD-K3NNA4B/ CA479N06701
35 GWH18AACXD-K3NNA5B CA488007701 GWH18AACXD-K3NNA5B/I CA488N07701
36 GWH18AACXD-K3NNA5B CA488007700 GWH18AACXD-K3NNA5B/I CA488N07700
37 GWH24AADXE-K3NNA5A CA488007601 GWH24AADXE-K3NNA5A/I CA488N07601
GWH24AADXE-K3NNA1A/O CA476W11400
38 GWH24AADXE-K3NNA5A CA488007600 GWH24AADXE-K3NNA5A/I CA488N07600
39 GWH24AADXE-K3NNA2A CA477009501 GWH24AADXE-K3NNA2A/I CA477N09501
40 GWH24AADXE-K3NNA3A CA478006901 GWH24AADXE-K3NNA3A/I CA478N06901
41 GWH24AADXE-K3NNA1A CA476011400 GWH24AADXE-K3NNA1A/I CA476N11400
42 GWH24AADXE-K3NNA2A CA477009500 GWH24AADXE-K3NNA2A/I CA477N09500
43 GWH24AADXE-K3NNA1A CA476011401 GWH24AADXE-K3NNA1A/I CA476N11401
44 GWH24AADXE-K3NNA3A CA478006900 GWH24AADXE-K3NNA3A/I CA478N06900
45 GWH24AADXE-K3NNA6A CA399002401 GWH24AADXE-K3NNA6A/I CA399N02401
46 GWH24AADXE-K3NNA4A CA479006900 GWH24AADXE-K3NNA4A/I CA479N06900
47 GWH24AADXE-K3NNA4A CA479006901 GWH24AADXE-K3NNA4A/I CA479N06901
48 GWH28AAEXF-K3NNA4A CA479006800 GWH28AAEXF-K3NNA4A/I CA479N06800
GWH28AGEXF-K3NNA1A/O CA385W12400
49 GWH28AAEXF-K3NNA6A CA399002600 GWH28AAEXF-K3NNA6A/I CA399N02600
50 GWH28AAEXF-K3NNA2A CA477009900 GWH28AAEXF-K3NNA2A/I CA477N09900
51 GWH28AAEXF-K3NNA2A CA477009901 GWH28AAEXF-K3NNA2A/I CA477N09901
52 GWH28AAEXF-K3NNA3A CA478007400 GWH28AAEXF-K3NNA3A/I CA478N07400
53 GWH28AAEXF-K3NNA1A CA476012300 GWH28AAEXF-K3NNA1A/I CA476N12300
Model list:

4Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model
1.GWH07AAAXA-K3NNA5A 2.GWH07AAAXA-K3NNA2A
3.GWH07AAAXA-K3NNA3A 4.GWH07AAAXA-K3NNA2A
5.GWH07AAAXA-K3NNA1A 6.GWH07AAAXA-K3NNA3A
7.GWH07AAAXA-K3NNA4A
Product Code 1.CA488007900 2.CA477009801 3.CA478007100 4.CA477009800
5.CA476012500 6.CA478007101 7.CA479007200
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Indoor
Cooling Capacity W 2250
Heating Capacity W 2300
Cooling Power Input W 700
Heating Power Input W 637
Cooling Power Current A 3.5
Heating Power Current A 3.1
Rated Input W 1000
Rated Cooling Current A 4.7
Rated Heating Current A 4.6
Air Flow Volume m3/h 520/470/420/250
Dehumidifying Volume L/h 0.6
EER W/W 3.21
COP W/W 3.61
SEER W/W /
HSPF W/W /
Application Area m210-16
Indoor
Unit
Model of indoor unit
1.GWH07AAAXA-K3NNA5A/I 2.GWH07AAAXA-K3NNA2A/I
3.GWH07AAAXA-K3NNA3A/I 4.GWH07AAAXA-K3NNA2A/I
5.GWH07AAAXA-K3NNA1A/I 6.GWH07AAAXA-K3NNA3A/I
7.GWH07AAAXA-K3NNA4A/I
Indoor Unit Product Code 1.CA488N07900 2.CA477N09801 3.CA478N07100 4.CA477N09800
5.CA476N12500 6.CA478N07101 7.CA479N07200
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Φ93×505
Cooling Speed r/min 1350/1200/1000/850
Heating Speed r/min 1300/1200/1000/900
Fan Motor Power Output W 20
Fan Motor RLA A 0.2
Fan Motor Capacitor μF 1
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ7.94
Evaporator Row-n Gap mm 1-1.2
Evaporator Coil Length (LXDXW) mm 508×19.05×254
Swing Motor Model MP24AN
Swing Motor Power Output W 1.5
Fuse Current A 3.15
Sound Pressure Level dB (A) Cooling: 40/37/35/26
Heating: 39/37/32/26
Sound Power Level dB (A) Cooling: 50/47/45/36
Heating: 49/47/42/36
Dimension (WXHXD) mm 698X250X185
Dimension of Carton Box (LXWXH) mm 742X306X244
Dimension of Package (LXWXH) mm 747X322X255
Net Weight kg 7.7

5
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 GWH07AGAXA-K3NNA1A/O
Outdoor Unit Product Code CA385W11300
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model QXA-A081T170
Compressor Oil /
Compressor Type Rotary
Compressor LRA. A 15
Compressor RLA A 3.2
Compressor Power Input W 713
Compressor Overload Protector UP3-MC0(MC0L)
Throttling Method Capillary
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature Range ºC 18~43
Heating Operation Ambient Temperature Range ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
Condenser Rows-n Gap mm 1-1.3
Condenser Coil Length (LXDXW) mm 638×12.7×419
Fan Motor Speed rpm 930±20
Fan Motor Power Output W 20
Fan Motor RLA A 0.3
Fan Motor Capacitor μF 1.5
Outdoor Unit Air Flow Volume m3/h 1400
Fan Type Axial-ow
Fan Diameter mm Φ350
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
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) 49
Sound Power Level (H/M/L) dB (A) 59
Dimension(WXHXD) mm 710X450X293
Dimension of Carton Box (LXWXH) mm 761X327X500
Dimension of Package(LXWXH) mm 764X330X525
Net Weight kg 22.3
Gross Weight kg 24.3
Refrigerant R410A
Refrigerant Charge kg 0.55
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 3/8
Max Distance Height m 10
Max Distance Length m 15
Note: The connection pipe applies metric diameter.

6Technical Information
Service Manual
Model
1.GWH09AAAXA-K3NNA2A 2.GWH09AAAXA-K3NNA3A
3.GWH09AAAXA-K3NNA5A 4.GWH09AAAXA-K3NNA2A
5.GWH09AAAXA-K3NNA1A 6.GWH09AAAXA-K3NNA3A
7.GWH09AAAXA-K3NNA1A 8.GWH09AAAXA-K3NNA4A
9.GWH09AAAXA-K3NNA4A 10.GWH09AAAXA-K3NNA6A
Product Code
1.CA477009700 2.CA478007300 3.CA488008000 4.CA477009701
5.CA476012401 6.CA478007301 7.CA476012400 8.CA479007000
9.CA479007001 10.CA399002700
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Indoor
Cooling Capacity W 2550
Heating Capacity W 2650
Cooling Power Input W 794
Heating Power Input W 734
Cooling Power Current A 3.7
Heating Power Current A 3.4
Rated Input W 1050
Rated Cooling Current A 5.8
Rated Heating Current A 5.7
Air Flow Volume m3/h 520/470/420/250
Dehumidifying Volume L/h 0.8
EER W/W 3.21
COP W/W 3.61
SEER W/W /
HSPF W/W /
Application Area m212-18
Indoor
Unit
Model of indoor unit
1.GWH09AAAXA-K3NNA2A/I 2.GWH09AAAXA-K3NNA3A/I
3.GWH09AAAXA-K3NNA5A/I 4.GWH09AAAXA-K3NNA2A/I
5.GWH09AAAXA-K3NNA1A/I 6.GWH09AAAXA-K3NNA3A/I
7.GWH09AAAXA-K3NNA1A/I 8.GWH09AAAXA-K3NNA4A/I
9.GWH09AAAXA-K3NNA4A/I 10.GWH09AAAXA-K3NNA6A/I
Indoor Unit Product Code
1.CA477N09700 2.CA478N07300 3.CA488N08000 4.CA477N09701
5.CA476N12401 6.CA478N07301 7.CA476N12400 8.CA479N07000
9.CA479N07001 10.CA399N02700
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Ф93×505
Cooling Speed r/min 1350/1200/1000/850
Heating Speed r/min 1300/1200/1000/900
Fan Motor Power Output W 20
Fan Motor RLA A 0.2
Fan Motor Capacitor μF 1
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ7.94
Evaporator Row-n Gap mm 1-1.2
Evaporator Coil Length (LXDXW) mm 508×19.05×254
Swing Motor Model MP24AN
Swing Motor Power Output W 1.5
Fuse Current A 3.15
Sound Pressure Level dB (A) Cooling: 40/37/31/26 Heating: 39/37/32/28
Sound Power Level dB (A) Cooling: 50/47/41/36 Heating: 49/47/42/38
Dimension (WXHXD) mm 698X250X185
Dimension of Carton Box (LXWXH) mm 742X306X244
Dimension of Package (LXWXH) mm 747X322X255
Net Weight kg 7.7

7
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 GWH09AGAXA-K3NNA1A/O
Outdoor Unit Product Code CA385W12800
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO,LTD.
Compressor Model QXF-B095T170
Compressor Oil FW68DA or equivalent
Compressor Type Rotary
Compressor LRA. A 19.4
Compressor RLA A 3.6
Compressor Power Input W 778
Compressor Overload Protector HPA-420
Throttling Method Capillary
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature Range ºC 18~43
Heating Operation Ambient Temperature Range ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7.94
Condenser Rows-n Gap mm 1-1.3
Condenser Coil Length (LXDXW) mm 632×19.05×418
Fan Motor Speed rpm 930
Fan Motor Power Output W 20
Fan Motor RLA A 0.27
Fan Motor Capacitor μF 1.5
Outdoor Unit Air Flow Volume m3/h 1400
Fan Type Axial-ow
Fan Diameter mm Φ350
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
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) 49/-/-
Sound Power Level (H/M/L) dB (A) 59/-/-
Dimension(WXHXD) mm 710X450X293
Dimension of Carton Box (LXWXH) mm 761X327X500
Dimension of Package(LXWXH) mm 764X330X525
Net Weight kg 24.7
Gross Weight kg 26.7
Refrigerant R410A
Refrigerant Charge kg 0.56
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 3/8
Max Distance Height m 10
Max Distance Length m 20
Note: The connection pipe applies metric diameter.

8Technical Information
Service Manual
Model
1.GWH12AABXB-K3NNA2B 2.GWH12AABXB-K3NNA5B
3.GWH12AABXB-K3NNA3B 4.GWH12AABXB-K3NNA6B
5.GWH12AABXB-K3NNA4B
Product Code 1.CA477009600 2.CA488007801/CA488007800 3.CA478007200/
CA478007201 4.CA399002500 5.CA479007100/CA479007101
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Indoor
Cooling Capacity W 3250
Heating Capacity W 3400
Cooling Power Input W 1009
Heating Power Input W 942
Cooling Power Current A 4.8
Heating Power Current A 4.6
Rated Input W 1350
Rated Cooling Current A 7
Rated Heating Current A 7
Air Flow Volume m3/h 590/520/400/300
Dehumidifying Volume L/h 1.6
EER W/W 3.22
COP W/W 3.61
SEER W/W /
HSPF W/W /
Application Area m216-24
Indoor
Unit
Model of indoor unit
1.GWH12AABXB-K3NNA2B/I 2.GWH12AABXB-K3NNA5B/I
3.GWH12AABXB-K3NNA3B/I 4.GWH12AABXB-K3NNA6B/I
5.GWH12AABXB-K3NNA4B/I
Indoor Unit Product Code 1.CA477N09600 2.CA488N07801/CA488N07800 3.CA478N07200/
CA478N07201 4.CA399N02500 5.CA479N07100/CA479N07101
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Ф93×580
Cooling Speed r/min 1350/1200/1100/850
Heating Speed r/min 1350/1200/1100/900
Fan Motor Power Output W 20
Fan Motor RLA A 0.22
Fan Motor Capacitor μF 1
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ5
Evaporator Row-n Gap mm 2-1.4
Evaporator Coil Length (LXDXW) mm 584×22.8×266.7
Swing Motor Model MP24AN
Swing Motor Power Output W 1.5
Fuse Current A 3.15
Sound Pressure Level dB (A) Cooling: 40/37/34/28
Heating: 40/37/34/28
Sound Power Level dB (A) Cooling: 50/47/44/38
Heating: 50/47/44/38
Dimension (WXHXD) mm 773X250X185
Dimension of Carton Box (LXWXH) mm 817X306X244
Dimension of Package (LXWXH) mm 822X322X255
Net Weight kg 8.5

9
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 GWH12AGBXB-K3NNA1B/O
Outdoor Unit Product Code CA385W11400
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO,LTD.
Compressor Model QXA-B120C170
Compressor Oil RB 68EP or equivalent
Compressor Type Rotary
Compressor LRA. A 24
Compressor RLA A 4.5
Compressor Power Input W 990
Compressor Overload Protector HPA-522A
Throttling Method Capillary
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature Range ºC 18~43
Heating Operation Ambient Temperature Range ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
Condenser Rows-n Gap mm 1-1.3
Condenser Coil Length (LXDXW) mm 673×12.7×514.4
Fan Motor Speed rpm 900
Fan Motor Power Output W 35
Fan Motor RLA A 0.33
Fan Motor Capacitor μF 2.5
Outdoor Unit Air Flow Volume m3/h 1950
Fan Type Axial-ow
Fan Diameter mm Φ400
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
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) 52
Sound Power Level (H/M/L) dB (A) 62
Dimension(WXHXD) mm 732X555X330
Dimension of Carton Box (LXWXH) mm 791X373X590
Dimension of Package(LXWXH) mm 794X376X615
Net Weight kg 28
Gross Weight kg 30.5
Refrigerant R410A
Refrigerant Charge kg 0.73
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 1/2
Max Distance Height m 10
Max Distance Length m 20
Note: The connection pipe applies metric diameter.

10 Technical Information
Service Manual
Model
1.GWH18AACXD-K3NNA1B 2.GWH18AACXD-K3NNA3B
3.GWH18AACXD-K3NNA2B 4.GWH18AACXD-K3NNA6B
5.GWH18AACXD-K3NNA4B 6.GWH18AACXD-K3NNA5B
Product Code
1.CA476011800/CA476011801 2.CA478006800/CA478006801
3.CA477009300/CA477009301 4.CA399002300
5.CA479006700/CA479006701 6.CA488007700/CA488007701
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Indoor
Cooling Capacity W 4800
Heating Capacity W 5158
Cooling Power Input W 1477
Heating Power Input W 1428
Cooling Power Current A 6.62
Heating Power Current A 6.4
Rated Input W 2150
Rated Cooling Current A 11.62
Rated Heating Current A 11.35
Air Flow Volume m3/h 650/590/410/340
Dehumidifying Volume L/h 1.8
EER W/W 3.25
COP W/W 3.61
SEER W/W /
HSPF W/W /
Application Area m221-31
Indoor
Unit
Model of indoor unit
1.GWH18AACXD-K3NNA1B/I 2.GWH18AACXD-K3NNA3B/I
3.GWH18AACXD-K3NNA2B/I 4.GWH18AACXD-K3NNA6B/I
5.GWH18AACXD-K3NNA4B/I 6.GWH18AACXD-K3NNA5B/I
Indoor Unit Product Code
1.CA476N11800/CA476N11801 2.CA478N06800/CA478N06801
3.CA477N09300/CA477N09301 4.CA399N02300
5.CA479N06700/CA479N06701 6.CA488N07700/CA488N07701
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Ф98×630
Cooling Speed r/min 1350/1200/1000/950
Heating Speed r/min 1300/1150/1000/900
Fan Motor Power Output W 20
Fan Motor RLA A 0.3
Fan Motor Capacitor μF 1.5
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф7
Evaporator Row-n Gap mm 2-1.4
Evaporator Coil Length (LXDXW) mm 634×25.4×304.8
Swing Motor Model MP24HF
Swing Motor Power Output W 1.5
Fuse Current A 3.15
Sound Pressure Level dB (A) Cooling: 41/40/35/32
Heating: 42/40/37/32
Sound Power Level dB (A) Cooling: 51/50/45/42
Heating: 52/50/47/42
Dimension (WXHXD) mm 849X289X215
Dimension of Carton Box (LXWXH) mm 897X341X268
Dimension of Package (LXWXH) mm 902X357X279
Net Weight kg 10.8

11
Technical Information
Service Manual
Outdoor
Unit
Outdoor Unit Model GWH18AGCXD-K3NNA1B/O
Outdoor Unit Product Code CA385W10100
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO. LTD.
Compressor Model QXA-D19F070
Compressor Oil ATMOS-RB68EP or equivalent
Compressor Type Rotary
Compressor LRA. A 42
Compressor RLA A 7
Compressor Power Input W 1510
Compressor Overload Protector UP3-06
Throttling Method Capillary
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature Range ºC 18~43
Heating Operation Ambient Temperature Range ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
Condenser Rows-n Gap mm 2-1.4
Condenser Coil Length (LXDXW) mm 780×23×514
Fan Motor Speed rpm 880
Fan Motor Power Output W 45
Fan Motor RLA A 0.44
Fan Motor Capacitor μF 3
Outdoor Unit Air Flow Volume m3/h 2300
Fan Type Axial-ow
Fan Diameter mm Φ420
Defrosting Method /
Climate Type T1
Isolation I
Moisture Protection IPX4
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) 53
Sound Power Level (H/M/L) dB (A) 63
Dimension(WXHXD) mm 802X555X350
Dimension of Carton Box (LXWXH) mm 869X395X594
Dimension of Package(LXWXH) mm 872X398X620
Net Weight kg 38.5
Gross Weight kg 41
Refrigerant R410A
Refrigerant Charge kg 1
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 12
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 1/2
Max Distance Height m 10
Max Distance Length m 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.

12 Technical Information
Service Manual
Model
1.GWH24AADXE-K3NNA1A 2.GWH24AADXE-K3NNA2A
3.GWH24AADXE-K3NNA3A 4.GWH24AADXE-K3NNA5A
5.GWH24AADXE-K3NNA6A 6.GWH24AADXE-K3NNA4A
Product Code
1.CA476011400/CA476011401 2.CA477009500/CA477009501
3.CA478006900/CA478006901 4.CA488007600/CA488007601
5.CA399002401 6.CA479006900/CA479006901
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Indoor
Cooling Capacity W 6155
Heating Capacity W 6700
Cooling Power Input W 1917
Heating Power Input W 1856
Cooling Power Current A 8.89
Heating Power Current A /
Rated Input W 2400
Rated Cooling Current A /
Rated Heating Current A /
Air Flow Volume m3/h 900/800/650/500
Dehumidifying Volume L/h 1.8
EER W/W 3.21
COP W/W 3.60
SEER W/W /
HSPF W/W /
Application Area m223-34
Indoor
Unit
Model of indoor unit
1.GWH24AADXE-K3NNA1A/I 2.GWH24AADXE-K3NNA2A/I
3.GWH24AADXE-K3NNA3A/I 4.GWH24AADXE-K3NNA5A/I
5.GWH24AADXE-K3NNA6A/I 6.GWH24AADXE-K3NNA4A/I
Indoor Unit Product Code
1.CA476N11400/CA476N11401 2.CA477N09500/CA477N09501
3.CA478N06900/CA478N06901 4.CA488N07600/CA488N07601
5.CA399N02401 6.CA479N06900/CA479N06901
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Ф106×706
Cooling Speed r/min 1350/1200/1050/900
Heating Speed r/min 1350/1200/1100/900
Fan Motor Power Output W 35
Fan Motor RLA A 0.35
Fan Motor Capacitor μF 2.5
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф7
Evaporator Row-n Gap mm 2-1.4
Evaporator Coil Length (LXDXW) mm 715×25.4×304.8
Swing Motor Model MP35CP
Swing Motor Power Output W 2.5
Fuse Current A 3.15
Sound Pressure Level dB (A) Cooling: 48/43/39/35
Heating: 49/45/42/35
Sound Power Level dB (A) Cooling: 58/53/49/45
Heating: 59/55/52/45
Dimension (WXHXD) mm 970X300X225
Dimension of Carton Box (LXWXH) mm 1017X366X285
Dimension of Package (LXWXH) mm 1020X369X295
Net Weight kg 13.7

13
Technical Information
Service Manual
Outdoor
Unit
Outdoor Unit Model GWH24AADXE-K3NNA1A/O
Outdoor Unit Product Code CA476W11400
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO. LTD.
Compressor Model QXA-D232F070
Compressor Oil FW68DA or equivalent
Compressor Type Rotary
Compressor LRA. A /
Compressor RLA A /
Compressor Power Input W /
Compressor Overload Protector /
Throttling Method Capillary
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature Range ºC 18~43
Heating Operation Ambient Temperature Range ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
Condenser Rows-n Gap mm 2-1.4
Condenser Coil Length (LXDXW) mm 848x38.1x528
Fan Motor Speed rpm 840
Fan Motor Power Output W 45
Fan Motor RLA A 0.42
Fan Motor Capacitor μF 3.5
Outdoor Unit Air Flow Volume m3/h 2400
Fan Type Axial-ow
Fan Diameter mm Φ445
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
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 873X555X376
Dimension of Carton Box (LXWXH) mm 948X428X591
Dimension of Package(LXWXH) mm 951X431X620
Net Weight kg 43
Gross Weight kg 46
Refrigerant R410A
Refrigerant Charge kg 1.28
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 1/2
Max Distance Height m 10
Max Distance Length m 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.

14 Technical Information
Service Manual
Model
1.GWH28AAEXF-K3NNA4A 2.GWH28AAEXF-K3NNA6A
3.GWH28AAEXF-K3NNA2A 4.GWH28AAEXF-K3NNA3A
5.GWH28AAEXF-K3NNA1A
Product Code 1.CA479006800 2.CA399002600 3.CA477009900/CA477009901
4.CA478007400 5.CA476012300
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Indoor
Cooling Capacity W 8500
Heating Capacity W 8900
Cooling Power Input W 2615
Heating Power Input W 2465
Cooling Power Current A 12
Heating Power Current A 11.5
Rated Input W 3400
Rated Cooling Current A 18.5
Rated Heating Current A 17.1
Air Flow Volume m3/h 1250/1100/980/820
Dehumidifying Volume L/h 3
EER W/W 3.25
COP W/W 3.61
SEER W/W /
HSPF W/W /
Application Area m246-70
Indoor
Unit
Model of indoor unit
1.GWH28AAEXF-K3NNA4A/I 2.GWH28AAEXF-K3NNA6A/I
3.GWH28AAEXF-K3NNA2A/I 4.GWH28AAEXF-K3NNA3A/I
5.GWH28AAEXF-K3NNA1A/I
Indoor Unit Product Code 1.CA479N06800 2.CA399N02600 3.CA477N09900/CA477N09901
4.CA478N07400 5.CA476N12300
Fan Type Cross-ow
Fan Diameter Length(DXL) mm Ф108×830
Cooling Speed r/min 1300/1150/1000/850
Heating Speed r/min 1300/1150/1000/850
Fan Motor Power Output W 35
Fan Motor RLA A 0.45
Fan Motor Capacitor μF 3
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф7
Evaporator Row-n Gap mm 2-1.4
Evaporator Coil Length (LXDXW) mm 850×25.4×381
Swing Motor Model MP35CP
Swing Motor Power Output W 2.5
Fuse Current A 3.15
Sound Pressure Level dB (A) Cooling: 48/45/40/37
Heating: 46/43/40/33
Sound Power Level dB (A) Cooling: 58/55/50/47
Heating: 56/53/50/43
Dimension (WXHXD) mm 1080X325X245
Dimension of Carton Box (LXWXH) mm 1125X397X320
Dimension of Package (LXWXH) mm 1145X400X330
Net Weight kg 16.9

15
Technical Information
Service Manual
Outdoor
Unit
Outdoor Unit Model GWH28AGEXF-K3NNA1A/O
Outdoor Unit Product Code CA385W12400
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD.
Compressor Model QXAS-E305H070
Compressor Oil RB68EP or FVC68D or FV50S or equivalent
Compressor Type Rotary
Compressor LRA. A 60
Compressor RLA A 11.4
Compressor Power Input W 2520
Compressor Overload Protector HPD-456
Throttling Method Capillary
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature Range ºC 18~43
Heating Operation Ambient Temperature Range ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7.94
Condenser Rows-n Gap mm 2-1.4
Condenser Coil Length (LXDXW) mm 851×38.1×616
Fan Motor Speed rpm 780
Fan Motor Power Output W 85
Fan Motor RLA A 0.7
Fan Motor Capacitor μF 4.5
Outdoor Unit Air Flow Volume m3/h 3200
Fan Type Axial-ow
Fan Diameter mm Φ520
Defrosting Method /
Climate Type T1
Isolation I
Moisture Protection IPX4
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) 60
Sound Power Level (H/M/L) dB (A) 70
Dimension(WXHXD) mm 958X660X402
Dimension of Carton Box (LXWXH) mm 1029X453X715
Dimension of Package(LXWXH) mm 1032X456X737
Net Weight kg 56.9
Gross Weight kg 60.6
Refrigerant R410A
Refrigerant Charge kg 1.9
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 50
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 5/8
Max Distance Height m 10
Max Distance Length m 30
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice. Please refer to the nameplate of the unit.

16 Technical Information
Service Manual
2.2 Capacity Variation Ratio According to Temperature
Cooling Heatling
Outdoor temp.( °C )
Capacity ratio(%)
Capacity ratio(%)
20
40
60
80
100
15
120
702-5-7
24
0
-10-1
55
01
Outdoor Temp.(°C)
32 33 34 35 36 37 38 39 43
40 41 42
100
95
105
90
85
80
75
70
65
60
55
50
Condition Cooling
Indoor:DB27°C/WB19°C
Indoor air flow:Super High
Pipe length:5m
Indoor air flow: Super High
Pipe length:
5m
Condition Heatin g
Indoor:DB20
°C /WB15°C
Cooling: Heating:
Cooling Heating
20
40
60
80
100
120
140
18 21 23 25 27 29 31 33 35 37 39 41 43
20
40
60
80
100
120
140
-15-13 -10-7-4-12 4791215182
124
Outdoor temp.(
o
C)
Capacity ratio (%)
Capacity ratio (%)
Outdoor temp.(
o
C)
Condition
Indoor: DB27
o
C WB19
o
C
Indoor air flow: Super High
Pipe length: 5m
Condition Heating
Indoor: DB20
o
C
Indoor air flow: Super High
Pipe length: 5m
Cooling: Heating:
28K
07K ~ 24K

17
Technical Information
Service Manual
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: 5 m.
2.3 Cooling and Heating Data Sheet in Rated Frequency
Heating:
Cooling:
Rated cooling condition(°C)
(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
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
27/19 35/24 07/09K 0.8 to 1.0 in:8~11
out:11~14
in:75~85
out:37~43 Super High High
27/19 35/24 12K 0.8 to 1.1 in:10~14
out:11~14
in:69~74
out:38~45 Super High High
27/19 35/24 18K 0.8 to 1.0 in:8~11
out:11~14
in:75~85
out:37~43 Super High High
27/19 35/24 24K 0.9 to 1.1 in:8~12
out:11~14
in:75~85
out:37~43 Super High High
27/19 35/24 28K 0.9 to 1.1 in:6~8
out:10~12
in:75~85
out:37~43 Super High High
Rated cooling condition(°C)
(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
Indoor Outdoor P (MPa) T1 (°C) T2 (°C)
20/- 7/6 07/09K 2.4 to 2.6 in:55~65
out:30~37
in:1~3
out:2~5 Super High High
20/- 7/6 12K 2.4 to 2.6 in:55~65
out:25~32
in:1~3
out:2~5 Super High High
20/- 7/6 18K 2.2 to 2.4 in:75~85
out:37~43
in:1~3
out:2~5 Super High High
20/- 7/6 24K 2.2 to 2.4 in:70~85
out:37~43
in:1~3
out:2~5 Super High High
20/- 7/6 28K 2.8 to 3.0 in:70~85
out:37~43
in:1~3
out:2~5 Super High High