LG LS-K1830HL - User Manual

SERVICE MANUAL
Room Air Conditioner
MODEL : LS-J0910CL / HL
LS-L1210CL / HL
LS-K1830CL / HL
LS-K2430CL / HL

LG LS-K1830HL Specifications

General

Cooling Capacity	1.5 Ton
Star Rating	3 Star
Indoor Noise Level	38 dB
Compressor Type	Rotary
Power Supply	230V, 50Hz
Type	Split Air Conditioner

Summary

Functions

Indoor Unit Operations

Details on unit functions like fan speed, modes, and controls.

Remote Controller Operations

Remote Control Functions

Explanation of remote control buttons and their operations.

Product Specifications

Cooling Only Model Specifications

Technical data and features for cooling-only units.

Cooling & Heating Model Specifications

Technical data and features for cooling & heating units.

Dimensions

Indoor Unit Dimensions

Physical measurements of the indoor unit.

Outdoor Unit Dimensions (9 K, 12 K)

Physical measurements for 9K and 12K outdoor units.

Outdoor Unit Dimensions (18 K, 24 K)

Physical measurements for 18K and 24K outdoor units.

Refrigeration Cycle Diagrams

Cooling Only Models Diagram

Diagram and specifications for cooling-only refrigeration cycles.

Cooling & Heating Models Diagram

Diagram and specifications for cooling & heating refrigeration cycles.

Wiring Diagrams

Indoor Unit Wiring Diagram

Electrical schematic for the indoor unit.

Outdoor Unit Wiring Diagrams

Electrical schematics for outdoor units.

Operation Details

Main Control Functions

Details on time delay, swing modes, cooling, and frosting protection.

Auto Operation Modes

Procedures for auto, dehumidification, heating, and louver operations.

Sleep Mode and Special Operations

Sleep mode, forced operation, and auto restart functions.

Display and Self-Diagnosis

Display Indicators and Buzzer Sounds

Explanation of unit indicators and audible alerts.

Self-Diagnosis Function

Troubleshooting codes and unit responses for errors.

Installation Guide

Safety and Preparation

Essential safety warnings, cautions, and precautions for installation.

Installation Procedures

Steps for selecting location, piping, and mounting.

Piping Work

Flaring Work Procedures

Steps for flaring copper pipes and checking work.

Indoor Unit Piping Connection

Connecting piping and drain hose to the indoor unit.

Indoor Unit Piping Routing and Insulation

Routing, taping, and insulating indoor unit piping.

Outdoor Unit Piping Connection

Connecting pipes to the outdoor unit and tightening flare nuts.

Electrical Connections

Indoor;Outdoor Unit Cable Connections

Procedures for connecting power and control cables between units.

Wiring Methods and Terminals

Examples and techniques for wiring solid and strand conductors.

Drainage and System Purging

Drainage Checks and Piping Formation

Steps to check drainage and form piping for units.

Air Purging and Evacuation

Procedures for air purging using a vacuum pump and evacuation.

Test Running and Pump Down

Unit Test Running Procedures

Steps for testing unit operation and evaluating performance.

Refrigerant Pump Down Procedure

Method for collecting refrigerant when relocating or servicing.

Troubleshooting

Refrigeration Cycle Troubleshooting

Analysis of temperature, pressure, and current for cycle issues.

Product Operation Faults

Troubleshooting for no operation, remote control, fan, and compressor issues.

Connection Error Phenomena

Symptoms of connection errors for indoor and outdoor units.

Electronic Control Device Details

Indoor Unit PWB Assembly

Details on indoor unit PWB parts and optional functions.

Outdoor Unit PWB Assembly

Details on outdoor unit PWB parts and optional functions.

Display PWB Assembly

Information on the display PWB.

Schematic Diagrams

Indoor Unit Schematic Diagram

Electrical circuit diagram for the indoor unit.

Outdoor Unit Schematic Diagram

Electrical circuit diagram for the outdoor unit.

Exploded Views and Parts Lists

Indoor Unit Exploded Views and Parts Lists

Visual breakdown and part numbers for indoor units (9K, 12K, 18K, 24K).

Outdoor Unit Exploded Views and Parts Lists

Visual breakdown and part numbers for outdoor units (9K, 12K, 18K, 24K).