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LG UJ30 NV2 User Manual

LG UJ30 NV2
146 pages
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Air Conditioner
SVC MANUAL(General)
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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LG UJ30 NV2 Specifications

General IconGeneral
BrandLG
ModelUJ30 NV2
CategoryAir Conditioner
LanguageEnglish

Summary

General Information

Safety Precautions

Essential safety instructions and warnings for servicing the unit.

Model Line Up

Details on various indoor and outdoor unit models and their specifications.

Nomenclature

Explanation of model naming conventions for indoor and outdoor units.

Functions & Controls

List of Functions & Accessory

Overview of functions and accessories for various unit types.

Air flow

Explanation of various airflow modes and settings.

Air purifying

Details on the PLASMA Air Purifying System.

Installation Functions

Configuration settings like ESP and High Ceiling operation.

Reliability

Information on hot start, self-diagnosis, and soft dry operation.

Convenience Functions & Controls

Various user-friendly features like timers and auto operations.

Special Function & KIT

Advanced functions and optional kits like Low Ambient control.

Basic Control

Normal operation

Basic operational principles of the compressor, fan, and EEV.

Compressor control

Control methods for the compressor, including fuzzy logic.

EEV( Electronic Expansion Valve) control

Control logic for the EEV in cooling and heating modes.

Trouble Shooting

Self-diagnosis Function

Explanation of error codes for indoor and outdoor units.

Pump Down

Procedure for safely recovering refrigerant from the system.

Evacuation

Process for removing air and moisture from the refrigerant circuit.

Gas Charging

Method for charging refrigerant into the system after evacuation.

Cycle Part

Analysis of refrigeration cycle issues based on temperature and pressure.

Electronic Parts

Troubleshooting common issues with product operation and remote control.

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