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Multi V CRUN Series
LG Multi V CRUN Series User Manual
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System
SERVICE MANUAL
System
Heat Pump Air Conditioner
SERVICE MANUAL
LG
MODELS: CRUN/CRNN Series
website http://www.lgservice.com
e-mail http://www.lgeservice.com/techsup.html
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
2
Table of Contents
Table of Contents
2
Service Manual
1
Model Name Namerclature
3
Model Names
4
Safety Precautions
5
Indoor Units
9
Indoor Units
10
Ceiling Mounted Cassette Type (1Way)
10
Specifications
11
Functions
12
Operation Details
13
Heating Mode Operation
14
Dimensional Drawings
15
Piping Diagrams
16
Wiring Diagrams
17
Exploded View
18
Replacement Parts List
19
Ceiling Mounted Cassette Type (4Way)
20
Specifications
21
Indoor Unit
22
Functions
23
Operation Detail
24
Dimensional Drawings
26
Piping Diagrams
28
Wiring Diagrams
29
Exploded View
30
Replacement Parts List
34
Ceiling Mounted Duct Type (High Static)
36
Specifications
37
Functions
39
Cooling Mode Operation
40
Operation Details
40
Time Delay Safety Control
40
Dimensional Drawings
42
Piping Diagrams
43
Wiring Diagrams
44
Exploded View
45
Replacement Parts List
47
Ceiling Mounted Duct Type (Low Static)
48
Specifications
49
Functions
50
Operation Details
51
Dimensional Drawings
53
Piping Diagrams
54
Wiring Diagrams
55
Exploded View
56
Replacement Parts List
57
Convertible Type
58
Specification
59
Installstion
60
Airflow Direction Control
61
Operation Details
61
Forced Operation
65
Soft Dry Operation
65
Test Operation
66
Display Function
67
Dimensional Drawings
68
Piping Diagrams
69
Wiring Diagrams
70
Disassembly of the Parts
71
Exploded View
75
Replacement Parts List
76
Crnn-Sr / Crnn-St Wall Mounted Type
77
Wall Mounted Type
77
Specification
78
Functions
79
Operation Details
80
Dimensional Drawings
85
Piping Diagrams
86
Wiring Diagrams
87
Disassembly of the Parts
88
Exploded View
90
Replacement Parts List
92
Crnn-Su Art Cool Type(Mirror)
93
Art Cool Type(Mirror)
93
Specification
94
Functions
95
Operation Details
96
Jet Cool Mode Operation
100
Display Function
102
Dimensional Drawings
103
Piping Diagrams
104
Wiring Diagrams
105
Disassembly of the Parts
106
Exploded View
109
Replacement Parts List
110
Crnn-Sp Art Cool Type
111
Art Cool Type
111
Specification
112
Functions
113
Operation Details
114
Sleep Timer Operation
117
Display Function
119
Dimensional Drawings
120
Piping Diagrams
121
Wiring Diagrams
122
Disassembly of the Parts
123
Exploded View
125
Replacement Parts List
126
Crnn-Sv Art Cool Type(Wide)
127
Art Cool Type(Wide)
127
Specification
128
Installation
129
Operation Details
130
Display Function
136
Dimensional Drawings
137
Piping Diagrams
138
Wiring Diagrams
139
Disassembly of the Parts
140
Exploded View
142
Replacement Parts List
143
Flor Standing Type
144
Specification
145
Functions
146
Operation Details
147
Dimensional Drawings
149
Piping Diagrams
150
Wiring Diagrams
151
Exploded View
152
Replacement Parts List
153
Outdoor Units
154
Crun Series
155
Outdoor Unit
156
Specifications
156
Function
157
Compressor Control
158
Operation Details
158
Oil Return Operation
161
Hot Gas Bypass Valve
166
Dimensional Drawings
169
Refrigerant Cycle Diagrams
171
Wiring Diagrams
173
Control Board
175
Exploded View
176
Replacement Parts List
179
Control Devices and Functions
182
1. Control Devices and Function
183
Default Chapter
183
Control Devices and Function
183
Deluxe Central Control
183
1 Control Devices and Function
184
Wired Remote Control
184
Wireless Remote Control
185
Simple Central Control
186
Electrical Wiring
187
Test Run Method
189
Rotary Switch
191
Group Control with Wired Remote Control
192
2 Deluxe Central Control 2.1 Introduction
193
System Control
197
Main Specifications
198
System Configuration
198
3 Installation
199
Transmission between Indoor Units and Outdoor Unit
199
Addressing of Indoor Units
201
Group Number Setting for Indoor Units
204
Optional Operation
207
Trouble Shooting Guide
209
Trouble Shooting Guide
210
1 The Phenomena from Main Component Failure
211
2 Checking Method for Key Components
212
Compressor
212
Linear Expansion Valve
213
3Phase Bridge Diode
216
Ipm(Integrated Power Module)
217
Others
218
3 Self-Diagnosis Function
219
Appendix
243
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LG Multi V CRUN Series Specifications
General
Brand
LG
Model
Multi V CRUN Series
Category
Air Conditioner
Language
English
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