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ARNU Series
LG ARNU Series User Manual
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Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Piping Diagrams
5. Piping Diagrams
Heat Exchanger
Sirocco F
an
lndoor unit
EEV
:Heating
:Cooling
Filter
Filter
:
Ther
mistor
Refrigerant pipe connection port diameter
MODEL
GAS
LIQUID
ARNU07GB1G1 / ARNU09GB1G1
Ø12.7(1/2)
Ø6.35(1/4)
ARNU12GB1G1 / ARNU18GB2G1
ARNU24GB2G1
Ø15.88(5/8)
Ø9.52(3/8)
[unit: mm(inch)]
102
104
Table of Contents
Air Conditioner Service Manual
2
Air Conditioner
1
Table of Contents
2
Safety Precautions
3
Part 1 General Information
10
Model Names
11
Indoor Unit
11
Outdoor Unit
11
External Appearance
12
Indoor Unit
12
Outdoor Unit
13
Combination of Outdoor Units
14
Nomenclature
15
Indoor Unit
15
Outdoor Unit
15
Outdoor Units Information
16
Heat Pump
17
Indoor Units
19
Ceiling Mounted Cassette Type (1Way)
21
Specifications
22
Functions
23
Cooling Mode Operation
24
Operation Detail
24
Heating Mode Operation
25
Dimensions
26
Piping Diagrams
27
Wiring Diagrams
28
Ceiling Mounted Cassette Type (2Way)
29
Specifications
30
Functions
32
Operation Details
33
Dimensions
35
Piping Diagrams
36
Wiring Diagrams
37
Ceiling Mounted Cassette Type (4Way)
39
Specifications
40
Functions
43
Operation Details
45
Dimensions
46
Piping Diagrams
48
Wiring Diagrams
49
Art Cool Type
51
Specification
52
Functions
53
Operation Details
54
Sleep Timer Operation
58
Forced Operation
59
Test Operation
59
Dimensions
61
Piping Diagrams
62
Wiring Diagrams
63
Art Cool Type(Wide)
65
Specification
66
Functions
67
Operation Details
68
Test Operation Control
73
Dimensions
75
Piping Diagrams
76
Wiring Diagrams
77
Art Cool Type(Mirror)
79
Specification
80
Functions
82
Operation Details
83
Dimensions
90
Piping Diagrams
91
Wiring Diagrams
92
Ceiling Concealed Duct Type (Low Static)
95
Specifications
97
Funtion
98
Operation Details
99
Dimensional Drawings
102
Dimensions
102
Front View
102
Piping Diagrams
103
Wiring Diagrams
104
Ceiling Concealed Duct Type (Built In)
105
Specifications
106
Funtion
108
Operation Details
109
Dimensions
112
Piping Diagrams
113
Wiring Diagrams
114
Ceiling Concealed Duct Type (High Static)
115
Specifications
116
Funtion
119
Operation Details
120
Dimensions
123
Piping Diagrams
124
Wiring Diagrams
125
Wall Mounted Type
127
Specification
128
Functions
130
Operation Details
131
Dimensions
138
Piping Diagrams
139
Wiring Diagrams
140
Convertible Type
141
Specifications
142
Funtion
144
Operation Details
145
Dimensions
148
Piping Diagrams
150
Wiring Diagrams
151
Floor Standing Type
153
Specifications
154
Funtion
156
Operation Details
157
Dimensions
160
Piping Diagrams
161
Wiring Diagrams
162
Outdoor Units
163
Cooling Operation
183
Heating Operation
184
6. Function
196
1 Basic Control
197
Normal Operation
197
Compressor Control
197
Main and Sub Unit's EEV Control
198
Fan Control
199
Fan Mode
199
2 Special Control
200
Oil Return Control
200
Defrost Control
201
Oil Equalizing Control
204
Stopping Operation
207
3 Protection Control
209
Pressure Protection Control
209
Discharge Temperature Control
211
Inverter Protection Control
211
Liquid Back Control
212
Phase Detection
213
Pressure Switch
213
4 Other Control
214
Initial Setup
214
Instant Indoor Unit Checking Mode
217
Emergency Operation
218
Pcb Setting and Test Run
219
Test Run
220
Replacement Procedure
227
Trouble Shooting Guide
229
Troubleshooting Guide
246
Exploded View & Replacement Parts List
297
Main Unit
303
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LG ARNU Series Specifications
General
Brand
LG
Model
ARNU Series
Category
Air Conditioner
Language
English
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