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LG LB-D1861HL User Manual

LG LB-D1861HL
54 pages
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Ceiling Duct Type
Air Conditioner
SERVICE MANUAL
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

Table of Contents

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LG LB-D1861HL Specifications

General IconGeneral
Compressor TypeRotary
RefrigerantR32
TypeSplit AC
Cooling Capacity18000 BTU/hr
Warranty1 Year on Product
Power Supply50Hz
Operating Temperature (Cooling)18°C

Summary

Functions

Indoor Unit Operations

Details various operational modes and controls of the indoor unit.

Remote Controller

Remote Controller Operation

Explains the functions, display, and operation of the remote controller.

Product Specifications

Cooling & Heating Specifications

Lists detailed technical specifications for cooling and heating modes.

Dimensions

Indoor Unit Dimensions

Provides physical dimensions for the indoor unit.

Outdoor Unit Dimensions

Provides physical dimensions for the outdoor unit.

Refrigeration Cycle Diagram

Heat Pump Cycle Diagram

Illustrates the refrigeration cycle for heat pump models.

Cooling Only Cycle Diagram

Illustrates the refrigeration cycle for cooling-only models.

Wiring Diagrams

Heat Pump Wiring Diagrams

Shows electrical wiring diagrams for heat pump models.

Cooling Only Wiring Diagrams

Shows electrical wiring diagrams for cooling-only models.

Operation Details

Key Operational Modes

Explains time delay, soft dry, cooling, heating, and defrost operations.

Defrost Control Procedures

Describes defrost control procedures for different models.

Installation Guide

Location Selection and Unit Mounting

Guidelines for selecting installation locations and mounting the unit.

Piping and Cable Connections

Instructions for connecting pipes and cables between units.

Piping Work Procedures

Pipe Preparation and Flaring

Procedures for preparing and flaring refrigerant pipes.

Piping Connection and Vacuum Drying

Steps for connecting pipes and performing vacuum drying.

Thermal Insulation

Insulation of Pipes and Joints

Guidelines for insulating refrigerant pipes and joints.

Test Running

Test Run Procedures and Checks

Precautions, steps, and checks for performing a test run.

Handover

Customer Operation and Maintenance

Instructions for teaching customers operation and maintenance procedures.

Optional Operations

Two Thermistor System Configuration

Configuration options for using two thermistors for temperature control.

Group Control

Group Control Wiring Design

Instructions for wiring multiple units for group control operation.

Refrigerant Cycle Management

Cycle Installation and Vacuuming

Steps for connecting and vacuum drying the refrigerant cycle.

Disconnection and Gas Charging

Procedures for disconnecting the cycle and charging refrigerant.

Cycle Troubleshooting

Refrigeration Cycle Trouble Analysis

Methods for analyzing and diagnosing refrigeration cycle issues.

Electronic Troubleshooting

Unit Operation Troubleshooting

Flowchart for diagnosing unit operation problems.

Fan and Heating Troubleshooting

Troubleshooting steps for fan and heating issues.

Remote Controller Troubleshooting

Troubleshooting steps for wired remote controller problems.

Electronic Control Device

Main PCB Assembly Details

Diagram and identification of components on the main PCB.

Parts List and Diagrams

Indoor Unit Exploded View and Parts List

Exploded diagram and parts list for the indoor unit.

Outdoor Unit Exploded View and Parts List

Exploded diagram and parts list for the outdoor unit.

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