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GWH18QD-K3DNA1G
Gree GWH18QD-K3DNA1G User Manual
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GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Lif
e
Service Manual
Models:
GWH18QD-K3DNA1G
GWH18QD-K3DNA2G
GWH18QD-K3DNA5G
GWH18QD-K3DNA6G
GWH18QD-K3DNB2G
GWH18QD-K3DNB4G
GWH18QD-K3DNB6G
GWH18QD-K3DNB8G
GWH18QD-K3DNC2G
GWH24QE-K3DNA1G
GWH24QE-K3DNA2G
GWH24QE-K3DNA5G
GWH24QE-K3DNA6G
GWH24QE-K3DNB2G
GWH24QE-K3DNB4G
GWH24QE-K3DNB6G
GWH24QE-K3DNB8G
GWH24QE-K3DNC2G
(Refrigerant R410A)
2
Table of Contents
Default Chapter
2
Table of Contents
2
Part Ⅰ : Technical Information
4
Specification Sheet
6
Operation Characteristic Curve
14
Capacity Variation Ratio According to Temperature
14
Cooling and Heating Data Sheet in Rated Frequency
15
Noise Curve
15
Indoor Side Noise When Blowing
15
Outdoor Side Noise When Blowing
15
1 Summary
4
Indoor Unit
4
3 Outline Dimension Diagram
16
Indoor Unit
16
Outdoor Unit
17
4 Refrigerant System Diagram
18
5 Electrical Part
19
Wiring Diagram
19
PCB Printed Diagram
23
6 Function and Control
26
Remote Controller Introduction
26
Introduction for Icons on Display Screen
26
Introduction for Buttons on Remote Controller
26
Function Introduction for Combination Buttons
29
Energy-Saving Function
29
Child Lock Function
29
Operation Guide
29
Replacement of Batteries in Remote Controller
29
Brief Description of Modes and Functions
30
Basic Function of System
30
Other Control
30
I Feel Control Mode
31
Compulsory Defrosting Function
31
Refrigerant Recovery Function
31
Ambient Temperature Display Control Mode
31
Input Parameter Compensation and Calibration
32
Basic Functions
32
Outdoor Units
32
Special Functions
33
Control Logic
33
4-Way Valve Control
33
Starting Estimation
34
Frequency Limited
34
Reducing Frequency at Normal Speed
34
Reducing Frequency at High Speed
34
Voltage Sag Protection
36
Communication Fault
36
Module Protection
36
Module Overheating Protection
36
Starting-Up Failure Protection for Compressor
37
Out-Of-Step Protection for Compressor
37
Voltage Abnormity Protection for DC Bus
37
PFC Protection
37
Electric Heating Function of Chassis
38
Electric Heating Function of Compressor
38
Safety Precautions
39
Electrical Safety Precautions
39
Part Ⅱ : Installation and Maintenance
39
7 Notes for Installation and Maintenance
39
Main Tools for Installation and Maintenance
40
Installation Dimension Diagram
41
Installation Procedures
42
Start Installation
42
Electric Connection Requirement
43
Installation of Indoor Unit
43
Installation Parts-Checking
43
Selection of Installation Location
43
Connect the Pipe of Indoor Unit
44
Install Drain Hose
44
Outlet Pipe
44
Bind up Pipe
45
Connect Wire of Indoor Unit
45
Hang the Indoor Unit
45
Fix Outdoor Unit
46
Fix the Support of Outdoor Unit
46
Install Drain Joint
46
Installation of Outdoor Unit
46
Check after Installation and Test Operation
47
Vacuum Pumping and Leak Detection
47
9 Maintenance
48
Malfunction Display of Indoor Unit
48
Malfunction Display Requirement
48
Procedure of Troubleshooting
50
Malfunction of Temperature Sensor F1, F2
50
Main Detection Points
50
Malfunction of Blocked Protection of IDU Fan Motor H6
51
Malfunction of Protection of Jumper Cap C5
52
Communication Malfunction (E6)
54
Malfunction of Desynchronizing of Compressor
55
Malfunction of Temperature Sensor (F3/F4/F5)
57
Malfunction of Overload Protection (E8)
60
Malfunction of IPM Protection (H5)
61
Malfunction of PFC Protection (HC)
62
Malfunction of Communication (E6)
63
Malfunction of Failure Start-Up of Compressor (LC)
64
Malfunction of Overcurrent Protection E5
65
Other Malfunction
66
Overheating Protection of IPM Module (P8)
66
DC Busbar Voltage Is too High (PH)
66
DC Busbar Voltage Is too Low (PL)
66
Troubleshooting for Normal Malfunction
67
Air Conditioner Can't be Started up
67
Poor Cooling (Heating) for Air Conditioner
67
Horizontal Louver Can't Swing
67
ODU Fan Motor Can't Operate
68
Compressor Can't Operate
68
Air Conditioner Is Leaking
68
Abnormal Sound and Vibration
68
10 Exploded View and Parts List
69
Indoor Unit
69
Outdoor Unit
89
Removal Procedure of Indoor Unit
92
Remove Fifter Assy
92
Remove Horizontal Louver
92
Remove Electric Box Cover 2
93
Remove Front Case Sub-Assy
93
Remove Display
93
Remove Vertical Louver
94
Remove Electric Box Assy
94
Remove Evaporator Assy
95
Remove Motor and Cross Flow Blade
96
Removal Procedure of Outdoor Unit
97
Remove Big Handle,Valve Cover and Top Cover
97
Remove Grille and Cabinet
98
Remove Rear Guard Grille and Right Side Plate
98
Remove Axial Flow Blade
99
Remove the Soundproof Sponge
101
Remove the Isolation Plate and Reactor
101
Valve Support Sub-Assy
102
Remove 4-Way Valve Assy
102
Motor Support Sub-Assy and Motor
102
Remove Condenser
103
Remove Compressor
103
Set Temperature
104
Ambient Temperature
104
Appendix
104
Appendix 1: Reference Sheet of Celsius and Fahrenheit
104
Appendix 2: Configuration of Connection Pipe
104
Cut the Pip
105
Remove the Burrs
105
Appendix 3: Pipe Expanding Method
105
Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor
106
Appendix 4: List of Resistance for Temperature Sensor
106
4
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Gree GWH18QD-K3DNA1G Specifications
General
Brand
Gree
Model
GWH18QD-K3DNA1G
Category
Air Conditioner
Language
English
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