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Air Conditioner
LB-E4881CL
LG LB-E4881CL User Manual
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Ceiling Duct T
ype
Air Conditioner
SER
VICE MANU
AL
MODELS: LB-D1861HL/CL, LB-D1863HL/CL
LB-D2461HL/CL, LB-D2463HL/CL
LB-F3061HL, LB-F3063HL
LB-F3661HL/CL, LB-F3663HL/CL
LB-F3681HL/CL, LB-F3683HL/CL
LB-F4261HL, LB-F4263HL
LB-E4881HL/CL, LB-E4883HL/CL
LB-E6081HL/CL, LB-E6083HL/CL
2
Table of Contents
Table of Contents
2
Functions
3
Remote Controller
4
Product Specifications (Cooling & Heating)
5
Dimensions
9
Refrigeration Cycle Diagram
11
Outdoor Wiring Diagram
13
Indoor Wiring Diagram
13
Wiring Diagram
13
Heat Pump
14
The Function of Main Control
19
Time Delay Safety Control
19
Soft-Dry Operation
19
Operation Details
19
Heating Mode Operation
20
Hot-Start Control
20
Defrost Control
21
Self-Diagnosis Function
21
Piping Length and the Elevation
22
Selection of the Best Location
22
Installation of Indoor, Outdoor Unit
22
Ceiling Dimension and Hanging Bolt Location
23
Position of Suspension Bolt
23
Position of Console Bolt
23
The Indoor Unit Installation
24
Remote Controller Installation
24
Installation of the Remote Controller
24
Routing of the Remote Controller Cord
24
How to Insert Batteries
25
Wired Remote Control Installation
25
How to Mount Onto a Wall
25
Remote Control Preparation
25
Connecting Cables to the Indoor Unit
26
Clamping of Cables
26
Electrical Wiring
27
Wiring Connection
27
Capacity of Circuit Breaker
27
Burrs Removal
28
Connecting Pipes to the Indoor Unit
28
Cut the Pipes and the Cable
28
Preparation of Piping
28
Piping Connection
29
Vacuum Drying
29
Front of View
30
Ceiling
30
Insulation, Others
31
Thermal Insulation
31
Refrigerant Pipe
31
Test Running
32
Precautions in Test Run
32
Form the Pipings
32
Connection of Power Supply
33
Evaluation of the Performance
33
Hand over
33
Optional Operation
34
Two Thermistor System
34
Features
35
Group Control(Optional Wiring)
35
Wiring Design
35
Installation (Connecting the Piping between Indoor and Outdoor Unit)
36
Cycle
36
Disconnection (on Moving)
37
Gas Charging
38
Check Temperature and Pressure of Refrigeration Cycle
39
Cycle Troubleshooting Guide
39
The Unit Does Not Operate
40
Electronic Parts Troubleshooting Guide
40
The Indoor Fan Does Not Operate
41
Ineffective Heating
41
Wired Remote Controller Does Not Operate
42
Main P.C.b Asm
43
Electronic Control Device
43
Exploded View and Replacement Parts List
44
Parts List
45
4
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LG LB-E4881CL Specifications
General
Brand
LG
Model
LB-E4881CL
Category
Air Conditioner
Language
English
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