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LG B42AWYU3G5 - User Manual

LG B42AWYU3G5
43 pages
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P/NO : MFL62541008
www.lg.com
INSTALLATION MANUAL
AIR CONDITIONER
• Please read this installation manual completely before installing the product.
• Installation work must be performed in accordance with the national wiring
standards by authorized personnel only.
• Please retain this installation manual for future reference after reading it
thoroughly.
TYPE : CEILING CONCEALED DUCT
MODEL : B30AWYN7G5 / B30AWYU4G5
B36AWYN7G5 / B36AWYU4G5
B42AWYN7G5 / B42AWYU3G5
B55AWYN7G5 / B55AWYU3G5
ENGLISH
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Summary

INSTALLATION MANUAL

AIR CONDITIONER

Comprehensive guide for installing LG air conditioners, detailing safety, setup, and operational procedures.

IMPORTANT SAFETY INSTRUCTIONS

Installation Safety Guidelines

Critical instructions for safe electrical work, grounding, and professional installation of the air conditioner.

Hazard Warnings

Alerts regarding potential injury or damage from ignoring safety protocols or using unqualified personnel.

Operational Safety Precautions

Outlines safety measures during operation, including power cord usage, water exposure, and handling sharp edges.

Installation Environment and Precautions

Covers installation site considerations, refrigerant leaks, noise, and child safety.

INSTALLATION PLACES

INDOOR UNIT INSTALLATION

Suspension Bolt Positioning

Guides on positioning suspension bolts for ceiling-mounted indoor units, including joint-canvas use.

Console Bolt Positioning

Explains selecting locations for console bolts that are level, support weight, and allow for service access.

Drain Gradient Importance

Highlights the critical role of indoor unit declination for drainage and minimum insulation thickness for pipes.

DRAIN PIPING MANAGEMENT

PIPING LENGTH AND ELEVATION GUIDELINES

COPPER PIPE CONNECTION

Pipe Preparation and Flaring

Details cutting pipes, removing burrs, and performing flaring work for secure refrigerant pipe connections.

CONNECTING PIPING AND DRAIN HOSES

Indoor Unit Piping Connection

Guides on connecting pipes to the indoor unit, tightening flare nuts, and attaching the drain hose.

Outdoor Unit Piping Connection

Provides instructions for connecting pipes to the outdoor unit, including flare nut tightening with torque wrench.

LEAKAGE TEST AND EVACUATION

Leakage Test Preparation and Procedure

Details connecting manifold valves, pressurizing with nitrogen gas, and preparing for leak detection using soap.

Leak Detection Method

Describes the process of identifying leaks by looking for bubbles after applying liquid soap to all joints.

Evacuation Process Steps

Guides on connecting the vacuum pump, running it, and achieving the required vacuum level for system purging.

Completing Evacuation and Purging

Covers closing valves, stopping the pump, opening service valves, and replacing caps to finalize the process.

ELECTRICAL WIRING

Power Source and Circuit Breaker Setup

Advises on selecting an appropriate power source, using circuit breakers, and performing earthing work correctly.

PIPING FORMATION AND SEALING

REMOTE CONTROLLER INSTALLATION

TEST RUNNING AND PERFORMANCE EVALUATION

Test Run Execution and Precautions

Covers essential steps for test running, including power supply requirements and operational precautions.

SELF-DIAGNOSIS FUNCTION

ACCESSORY INSTALLATION GUIDE

SEASIDE INSTALLATION GUIDE

LG B42AWYU3G5 Specifications

General IconGeneral
BrandLG
ModelB42AWYU3G5
CategoryAir Conditioner
LanguageEnglish

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