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LG Multi V Manual&Nbsp;
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Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. Model Names
Outdoor Unit
Model Names
Heat Pump
ARUN
Power Supply
4HP
5HP
1Ø, 208~230V, 60Hz
038GS2
048GS2
2. External Appearance
Outdoor Units
ARUN038GS2
ARUN048GS2
4, 5 HP
10
12
Table of Contents
Table of Contents
2
Safety Precautions
3
Part 1 General Information
10
1 Model Names
11
2 External Appearance
11
Outdoor Unit
11
4 Nomenclature
12
Outdoor Units
13
Outdoor Unit
13
Function
15
1 Basic Control
16
Compressor Control
16
Indoor Unit
16
Normal Operation
16
EEV Control
17
Oil Return Control
18
Outdoor Unit
18
2 Special Control
18
Defrost
20
Stopping Operation
21
Pressure Protection Control
22
3 Protection Control
22
Discharge Temperature Control
24
Inverter Protection Control
24
Pressure Switch
24
Initial Setup
25
4 Other Control
25
Sensor Checking Function
27
Refrigerant Auto Charging
29
Refrigerant Checking Function
31
Pump down
33
Pump out
35
Night Low Noise Function
37
Night Silent Operation
37
Vacuum Mode
38
Black Box Function
39
PCB Setting and Test Run
40
Test Run
41
How to Cope with Test Run Abnormality
42
Dip Switch Setting
43
Main Pcb
43
Replacement Procedure
47
Replacement Procedure for Compressor
48
Replacement Procedure for Inv Pcb
49
Caution for Assembling Outdoor Panels after Test Run
50
Trouble Shooting Guide
51
Trouble Shooting Guide
52
1 The Phenomena from Main Component Failure
53
2 Checking Method for Key Components
54
Compressor
54
Fan Motor
55
Electronic Expansion Valve
56
Inverter IPM Checking Method
59
Self-Diagnosis Function
60
Troubleshooting Guide
60
Error Indicator
60
Error Display
60
Error 01/02/06
62
Other manuals for LG Multi V
Service Manual
147 pages
Installation Manual
113 pages
Owner's Manual
17 pages
5
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LG Multi V Specifications
General
Brand
LG
Model
Multi V
Category
Air Conditioner
Language
English
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