LG LMU240HHV Service Manual

Please read this manual carefully before operating
your set and retain it for future reference.
General
Multi-Inverter Type
P/NO : MFL68280204
SERVICE MANUAL
AIR
CONDITIONER

LG LMU240HHV Specifications

General

Brand	LG
Model	LMU240HHV
Category	Air Conditioner
Language	English

Summary

Part 1 General Information

1. Safety Precautions

Safety guidelines and warnings for operating and servicing the air conditioner.

2. Model Line Up

Part 2 Functions & Controls

1. List of Functions & Accessory

Comprehensive list of functions and optional accessories available for the units.

Part 3. Basic Control

1. Normal operation

2. Compressor control

3. EEV( Electronic Expansion Valve) control

6. Protection control

Various protection mechanisms against abnormal operating conditions like pressure and temperature.

Part 4. Test Run

1. Check before Test Run

Pre-test checks including refrigerant leakage and electrical connections.

2. Test Run Flow chart

3. Test Running

Procedures for performing test runs on different unit types and evaluating performance.

Part 5. Trouble Shooting

1. Self-diagnosis Function

System for self-diagnosis of errors and display of error codes via indicators.

2. Pump Down

Procedure to gather refrigerant into the ODU for leakage checks or IDU replacement.

3. Evacuation

4. Gas Charging

6. Electronic Parts