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LG
Air Conditioner
CQ12 NA0
LG CQ12 NA0 User Manual
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Air Conditioner
SVC MANUAL(General)
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com
2
Table of Contents
Table of Contents
2
Part 1 General Information
3
Safety Precautions
4
Model Line up
7
Nomenclature
11
Part 2 Functions & Controls
15
1 List of Functions & Accessory
16
2 Air Flow
27
Auto Swing (Left & Right)
27
Auto Swing (up & Down)
27
Chaos Swing (Up/Down)
27
Air Flow Step
28
Chaos Wind (Auto Wind)
28
Jet Cool Mode Operation
28
Swirl Wind Swing
28
3 Air Purifying
29
PLASMA Air Purifying System
29
4 Installation Functions
30
External Static Pressure) Setting
30
High Ceiling Operation
40
5 Reliability
41
Hot Start
41
Self-Diagnosis Function
41
Soft Dry Operation
41
6 Convenience Functions & Controls
42
Cooling & Heating Operations
42
Auto Cleaning Operation
43
Auto Changeover Operation
43
Auto Restart Opeartion
43
Child Lock Function
44
Forced Operation
44
Group Control
45
Sleep Timer Operation
46
Timer(On/Off)
46
Weekly Program
47
Two Thermistor Control
49
7 Special Function & KIT
50
Low Ambient Control
50
Space Control
50
Auto Elevation Grille
50
Part 3 Basic Control
53
Normal Operation
54
Compressor Control
54
EEV( Electronic Expansion Valve) Control
54
Part 4 Trouble Shooting Guide
55
1 Self-Diagnosis Function
56
Error Indicator (Indoor)
56
Error Indicator (Outdoor)
57
2 Pump down
58
3 Evacuation
59
Gas Charging (after Evacuation)
60
Evacuation (All Amount of Refrigerant Leaked)
59
4 Gas Charging
60
5 Cycle Part
61
6 Electronic Parts
62
The Product Does'n T Operate at All
62
The Product Doesn't Operate with the Remote Controller
63
The Compressor/Outdoor Fan Are Don't Operate
64
When Indoor Fan Does Not Operate
65
When the Louver Does Not Operate
66
Troubleshooting Indoor Error
67
Troubleshooting Outdoor Error
73
4
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LG CQ12 NA0 Specifications
General
Type
Split System
Cooling Capacity
12000 BTU/h
Power Supply
220-240V, 50Hz
Refrigerant
R410A
Compressor Type
Rotary
Noise Level (Outdoor)
50 dB
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