LG LUU428HV - User Manual

INSTALLATION MANUAL
Standard Inverter
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.
MFL68061228
Rev.00_060218
http://www.lghvac.com
www.lg.com
Copyright © 2017 - 2018 LG Electronics Inc. All Rights Reserved.
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Summary

Important Safety Instructions

Installation Safety

General safety guidelines for product installation, covering grounding and electrical connections.

Operation Safety

Critical safety precautions during product operation, addressing power cords and potential hazards.

Installation Precautions

Specific installation points like drain hose, noise, gas leakage, and level alignment.

Installation of Outdoor Unit

Installation Places

Wiring Connection

Electrical Wiring Guidelines

Connecting Copper Pipes

Piping Preparation and Flaring

Leakage Test and Evacuation

Preparation and Leakage Test

Steps for preparing the system and conducting a leakage test using nitrogen gas and soap.

Evacuation and Finishing

Procedure for system evacuation using a vacuum pump and final job completion steps.

Test Running

Test Running Precautions

Important precautions to follow before and during test running, including initial power supply.

Installation Completion Checks

Self-Diagnosis Function

Outdoor Error Indicators

LG LUU428HV Specifications

General

Refrigerant	R410A
Heating Seasonal Performance Factor (HSPF)	9.0
Cooling Capacity	12000 BTU/h
Operating Temperature (Cooling)	64-109°F (18-43°C)
Operating Temperature (Heating)	-15°C to 24°C
Indoor Unit Weight	9 kg