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Gree Manuals
Air Conditioner
GWHD14NK3BO
Service manual
Table Of Contents - Gree GWHD14NK3BO Service Manual
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Service manual
(66 pages)
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
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Table of Contents
Service Manual
1
Table Of Contents
2
Summary And Features
3
Safety Precautions
4
Warning
4
Caution
4
Specifications
5
Construction Views
9
Refrigerant System Diagram
11
Indoor
11
Outdoor
11
Schematic Diagram
13
Electrical Data
13
Electrical Wiring
13
Meaning Of Marks
13
Printed Circuit Board
18
Top View
18
Bottom View
18
Description Of Each Control Operation
22
Basic Functions Of The System
22
Cooling Mode
22
Stop In Cooling Operation
22
Protection Function
23
Fan Mode
23
Mode Conflict Protection Of Indoor Unit
23
Overload Protection Function
23
Communication Malfunction
24
Overcurrent Protection
24
Compressor High-Pressure Protection
24
Compressor Overload Protection
24
Ipm Protection
24
Control Function Of Outdoor Unit
25
Dry Mode
25
Heating Mode
25
Discharge Protection Function
26
Compressor Low-Pressure Protection
26
Other Function
27
Refrigerant Recovery
27
Installation Manual
28
Electrical Connections
28
Installing The Outdoor Unit
31
Installation Dimension Diagram
32
Check After Installation
33
Models:36K And 42K
34
Installation Location And Matters Needing Attention
35
Electric Wiring
35
Earthing Requirements
36
Noise Precautions
37
Installation Of The Outdoor Unit
37
Outline Dimension Of The Outdoor Unit
37
Connection Between Indoor And Outdoor Units
38
Piping Between The Indoor And Outdoor Units
39
Moments Of Torque For Tightening Screws
39
Installation Of The Protection Layer Of The Refrigerant Pipe
40
Refrigerant Charging And Trial Running
40
Refrigerant Charging
40
Calculation Of The Additional Refrigerant Charging
41
Calculation Of The Additional Refrigerant Charge
41
Indoor Unit
41
Liquid Refrigerant Pipe
41
Additional Refrigerant Charge Record
42
Trial Running
42
Exploded Views And Parts List
43
Troubleshooting
63
Malfunction Indicator
63
Malfunction Checking And Elimination
64
Ipm Protection Malfunction
64
Main Checking Point
64
Energize The Unit
65
Pfc Protection Malfunction
66
Start
66
Capacity Charging Malfunction
67
Energize The Unit And Wait For 1Min
67
Anti-High Temperature And Overload Malfunction
68
Temperature Sensor Malfunction
69
Start Failure Malfunction
70
Compressor Overload, Diacharge Protection Malfunction
73
Compressor Desynchronizing Malfunction
74
Trouble Table
75
Check Before Contacting Service Center
75
Problem Handling
75
Error Description
76
Error Description Of Outdoor Refrigerant Pipe Detection Function
78
Flow Chart Of Troubleshooing
79
Malfunction Display: E1 Compressor High Pressure Protection
79
Malfunction Display: E3 Compressor Low Pressure Protection
80
Malfunction Display: E4 Compressor Exhaust High Temperature Protection
81
Malfunction Display: E5 Compressor Overheat
81
Malfunction Display: E9 Full Water Protection
82
Malfunction Display: F2 Failure Of Evaporator Temp. Sensor
82
Malfunction Display: F3 Failure Of Outdoor Ambient Sensor
83
Malfunction Display: F5 Failure Of Exhaust Temp. Sensor
83
Removal Procedure
87
Before Disassembly
87
Remove Valve Cover
87
Remove Handle
87
Remove Top Panel
88
Remove Front Grille
88
Remove Front Panel
88
Remove Right Side Plate
89
Remove Rear Grill
89
Remove Left Side Plate
89
Remove Axial Flow Blade
90
Remove Motor And Motor Support
90
Remove Electric Box Assy
90
Remove Pfc Induction
91
Remove 4-Way Valve Assy
91
Remove Valve Support Sub-Assy And Expansion Valve Assy
91
Remove Middle Isolation Sheet
92
Remove Compressor
92
Remove Condenser Assy
92
Disassembly And Assembly Of Outer Casing
100
Disassemble The Cover Plate
100
Disassemble The Front Panel
100
Disassemble The Panel On The Right Side
100
Dismount The Grille
101
Disassemble The Outer Casing
101
Disassemble The Fan Blades
101
Disassembly And Assembly Of Compressor
102
Disconnect The Power Cord
102
Disassemble The Pipeline Connected With Compressor
102
Disassembly And Assembly Of 4-Way Valve
103
Remove The 4-Way Valve Coil
103
Replace The 4-Way Valve And Reconnect It With The Pipeline
104
Install The 4-Way Valve Coil
104
Disassembly And Assembly Of Electronic Expansion Valve
105
Remove The Electronic Expansion Valve Coil
105
Replace The Electronic Expansion Valve
105
Reconnect The Electronic Expansion Valve With The Pipeline
105
Disassembly And Assembly Of Vapour Liquid Separator
106
Disconnect The Liquid Separator And The Connected Pipeline
106
Remove The Liquid Separator
106
Fix The New Liquid Separator And Connect It With The Pipeline
106
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Table of Contents
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This manual is also suitable for:
Gwhdnk3bo
Gwhdnk3do
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Gwhd24nk3do
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