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LG HMC024KDD1 User Manual

LG HMC024KDD1
68 pages
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Table of Contents

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LG HMC024KDD1 Specifications

General IconGeneral
Phase1
RefrigerantR410A
Cooling Capacity (BTU)24000
Heating Capacity (BTU)27000
Voltage (V)208/230

Summary

Unit Functions Overview

Basic Unit Operation Controls

Covers ON/OFF, fan speed, airflow direction, and auto controls.

Status Indicators and Special Modes

Explains LED indicators, dehumidification, sleep, defrost, and hot-start functions.

Remote Controller Functions

Mode, Temperature, and Fan Settings

Controls operation mode, room temperature, and fan speed via remote.

Timer, Sleep, and Airflow Control

Manages timers, sleep mode, and airflow direction using the remote.

Product Specifications

Performance Specifications

Details cooling/heating capacity, moisture removal, EER, and COP.

Refrigeration Cycle Diagrams

Refrigeration Cycle Schematics

Illustrates the refrigeration circuits for different models.

Wiring Diagrams

Main Unit Operation Details

Display Indicators and Modes

Explains operation, timer, sleep, and defrost indicators for different models.

Cooling and Dehumidification Logic

Details operational logic for cooling and dehumidification modes.

Heating Mode Operation Logic

Covers heating mode logic, including pipe temperature control.

Defrost and Overload Protection

Explains defrost control and overload protection mechanisms for heating.

Advanced Operation Modes

Display and Self-Diagnosis

Installation Guide

Indoor Unit Installation Steps

Mounting Plate and Hole Drilling

Details installing the mounting plate and drilling for pipes.

Indoor Unit Piping and Drainage Prep

Indoor Unit Piping Connections

Final Indoor Unit Assembly

Outdoor Unit Piping Connections

Electrical Cable Connections

Indoor and Outdoor Unit Wiring

Details wiring connections to the terminal blocks of both units.

Air Purging Procedure

Refrigeration Cycle Air Purging

Step-by-step process to remove air and moisture from the system.

Pipe Length and Refrigerant Charge

Test Running and Performance Evaluation

Power Supply, Remote Setup, and Testing

Guides on power connection, remote setup, and performance evaluation.

Remote Control Operation (Door Closed)

Remote Control Operation (Door Opened)

Indoor Unit Disassembly

Indoor Unit Component Removal

Valve Operation and Servicing

Pumping Down Procedure

Pumping Down Steps

Detailed procedure for pumping down the system before servicing.

Evacuation Procedure

Evacuating System After Leak

Steps for evacuating the system after refrigerant leaks.

Gas Charging Procedure

Charging Refrigerant into System

Detailed steps for charging the system with refrigerant.

Refrigeration Cycle Troubleshooting

Temperature Difference Analysis

Analyzes issues based on intake/discharge air temp differences.

Pressure and Temperature Faults

Guides on checking suction pressure and temperature for faults.

Electronic Parts Troubleshooting

Troubleshooting Unit Non-Operation

Steps for when the unit does not operate at all.

Remote Control Operation Issues

Cooling Mode Troubleshooting

Indoor Fan Operation Issues

Vertical Louver Operation Issues

Heating Mode Troubleshooting

Outdoor Unit and Communication Issues

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