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Multi V S
LG Multi V S User Manual
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ELECTRICAL WIRING
57
ENGLISH
Example) Connection of power and communication cable
U7
U3
Insulation sleeves
attachment
Power
/
Ground cable
Power
/
Ground cable
Communication
cable
Over 50mm gap
Main power
T
erminal block
Ground wire
Fix firmly not to be
displaced
ODU-IDU
Communication cable
Hold power cable
Hold
communication
cable
Insulation sleeves
attachment
Power
/
Ground cable
Power
/
Ground cable
View A
A
Communication
cable
Over 50mm gap
Fix firmly not to be
displaced
ODU-IDU
Communication cable
Hold power cable
Communication
cable
Main power
T
erminal block
Hold Communication
cable
Ground wire
Fix firmly
not to be
displaced
Over
50mm gap
Power
/
Ground cable
Communication
cable
Over
50mm gap
Power
/
Ground cable
Communication
cable
Right side
Front side
Right side
Front side
※
Pictures may differ depending on the model.
56
58
Table of Contents
Important Safety Instructions
4
Table of Contents
7
Installation Process
8
Outdoor Units Information
9
Environment-Friendly Alternative Refrigerant R410A
10
Select the Best Location
11
Installation Space
12
Collective / Continuous Installation for Roof Top Use
16
Lifting Method
18
Installation
19
The Location of the Anchor Bolts
19
Foundation for Installation
20
Preparation of Piping
21
Plumbing Materials and Storage Methods
24
Refrigerant Piping Installation
26
Precautions on Pipe Connection / Valve Operation
26
Pipe Connections between Indoor and Outdoor Unit
27
Preparation Work
27
Pipe Drawing out
28
Selection of Refrigerant Piping
30
Refrigerant Piping System
31
Refrigerant Charging
40
Distribution Method
41
Branch Pipe Fitting
42
Leak Test and Vacuum Drying
46
Vacuum Mode
48
Heat Insulation of Refrigerant Piping
49
Electrical Wiring
50
Caution
50
Control Box and Connecting Position of Wiring
52
Communication and Power Cables
53
Wiring of Main Power Supply and Equipment Capacity
54
Electric Characteristics
54
Field Wiring
55
Installation of IO Module(Optional)
59
Checking the Setting of Outdoor Units
60
Automatic Addressing
61
Group Number Setting
64
Cool & Heat Selector
65
Static Pressure Compensation Mode
66
Night Low Noise Function
67
Setting the ODU Address
68
Snow Removal & Rapid Defrost
69
Target Pressure Adjusting
70
Self-Diagnosis Function
71
Caution for Refrigerant Leak
74
Introduction
74
Checking Procedure of Limiting Concentration
74
Installation Guide at the Seaside
76
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LG Multi V S Specifications
General
Brand
LG
Model
Multi V S
Category
Air Conditioner
Language
English
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