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LG LMAN097HVP - User Manual

LG LMAN097HVP
113 pages
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Multi Air Conditioner
SVC MANUAL(General)
MODEL : Multi-Inverter Type
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com

Table of Contents

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Summary

Part 1 General Information

Safety Precautions

Essential safety guidelines and warnings to prevent injury and property damage during repair and operation.

Model Line Up

Details on various indoor and outdoor unit models, including capacity and specifications.

Nomenclature

Explanation of model coding for indoor, outdoor, and branch distributor units.

Part 2 Functions & Controls

List of Functions & Accessory

Overview of functions and accessories available for different indoor unit types.

Air Flow Features

Detailed descriptions of various airflow control functions like auto swing and chaos wind.

Air Purifying System

Explanation of the PLASMA Air Purifying System for contaminant removal.

Installation Functions

Guidance on setting the External Static Pressure (E.S.P.) for optimal installation.

Reliability Features

Description of reliability functions like Hot Start and Self-diagnosis.

Convenience Functions

Features enhancing user convenience, including auto-cleaning, auto-operation, and timers.

Special Functions & KITs

Details on advanced functions like Low Ambient Control and Auto Elevation Grille.

Part 3 Basic Control

Normal Operation

Explanation of the basic principle for controlling motor RPM via compressor frequency.

Compressor Control

Details on fuzzy control for maintaining evaporating/condensing temperatures.

EEV Control

Explanation of Electronic Expansion Valve operation for superheat control.

Oil Return Control

Description of the operation for recovering oil accumulated in the pipe.

Defrost Control

Process for eliminating ice accumulation on the heat exchanger during heating.

Protection Control

Details on protection mechanisms like high/low pressure and discharge temperature.

Part 4. Test Run

Check before Test Run

Pre-run checks including refrigerant leakage and proper connection of power/transmission cables.

Test Run Flow chart

Visual flowchart for conducting the operational test of the unit.

Test Running Procedures

Step-by-step guide for performing test runs on different unit types.

Part 5. Trouble Shooting

Self-diagnosis Function

Information on error codes and indicators for indoor and outdoor units.

Pump Down Procedure

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

Evacuation Process

Procedure for removing air and moisture from the refrigerant circuit using a vacuum pump.

Gas Charging

Instructions for charging refrigerant into the system after evacuation.

Cycle Part Troubleshooting

Analysis of issues related to refrigerant cycle performance based on temperature difference.

Electronic Parts Troubleshooting

Guides for diagnosing issues with the product not operating or remote controller problems.

Outdoor Unit Error Troubleshooting

Diagnostic steps for common outdoor unit errors and their causes.

Part 6. Service Order

PCB Service Order

Step-by-step instructions for replacing the Printed Circuit Board (PCB).

LG LMAN097HVP Specifications

General IconGeneral
Cooling Capacity9, 000 BTU/h
Power Consumption (Cooling)750 W
Energy Efficiency Ratio (EER)12.0
Seasonal Energy Efficiency Ratio (SEER)22.0
RefrigerantR410A
Sound Level (Indoor)19 dB

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