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MULTI V WATER IV ARWN120LAS4
LG MULTI V WATER IV ARWN120LAS4 Manuals
Manuals and User Guides for LG MULTI V WATER IV ARWN120LAS4. We have
3
LG MULTI V WATER IV ARWN120LAS4 manuals available for free PDF download: Service Manual, Installation Manual
LG MULTI V WATER IV ARWN120LAS4 Service Manual (95 pages)
Brand:
LG
| Category:
Air Conditioner
| Size: 11.63 MB
Table of Contents
Table of Contents
2
Safety Precautions
3
Part 1 General Information
8
Indoor Unit
9
Model Names
9
Outside Unit
10
External Appearance
11
Indoor Unit
11
Outside Unit
12
Combination of Outside Units
13
Indoor Unit
14
Nomenclature
14
Outside Unit
14
Part 2 Outside Units
15
Function
16
Basic Control
17
Compressor Control
17
Normal Operation
17
Master and Slave Unit's EEV Control
18
Oil Return Control
19
Special Control
19
Oil Equalizing Control
21
Stop Operation
21
Pressure Protection Control
22
Protection Control
22
Discharge Temperature Control
23
Inverter Protection Control
23
Phase Detection
24
Pressure Switch
24
Initial Setup
25
Other Control
25
Cool & Heat Selector
28
Geothermal Mode
29
220 V out for Solenoid Valve
30
Variable Water Flow Control
31
Outside Unit Adress
32
Using a Sump Heater
33
Vacum Mode
34
Forced Oil Return
35
Refrigerant Noise Reduction Mode
36
Cycle Data View
37
Part 3 PCB Setting and Test Run
38
Part 4 Trouble Shooting Guide
43
Trouble Shooting Guide
44
The Phenomena from Main Component Failure
45
Checking Method for Key Components
46
Compressor
46
Electronic Expansion Valve
47
Phase Bridge Diode Checking Method
50
Inverter IPM/IGBT Checking Method
51
Outdoor Fan
52
Pressure Sensor(High/Low Pressure Sensor)
52
Solenoid Valve
53
Reverse Valve
54
Temperature Sensor
54
Others
55
Self-Diagnosis Function
56
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LG MULTI V WATER IV ARWN120LAS4 Installation Manual (79 pages)
Brand:
LG
| Category:
Air Conditioner
| Size: 8.34 MB
Table of Contents
Table of Contents
2
Safety Precautions
3
Installation Process
7
Outside Units Information
8
Environment-Friendly Alternative Refrigerant R410A
14
Select the Best Location
14
Installation Space
15
Water Control
17
Lifting Method
19
Installation
20
Refrigerant Piping Installation
24
Device Protection Unit
29
Refrigerant Piping System
31
Y Branch Pipe and Header Branch Pipe Type
46
Leakage Test and Vacuum
48
Electrical Wiring
50
Test Run
67
Cooling Tower Applied Method
74
Caution for Refrigerant Leak
75
Water Solenoid Valve Control
77
LG MULTI V WATER IV ARWN120LAS4 Service Manual (31 pages)
Outside Unit
Brand:
LG
| Category:
Heat Pump
| Size: 6.3 MB
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