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LG MULTI V 5 ARUN120LTE5 - User Manual

LG MULTI V 5 ARUN120LTE5
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INSTALLATION MANUAL
AIR
CONDITIONER
www.lg.com
Copyright © 2017 - 2018 LG Electronics Inc. All Rights Reserved.
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.
Heat Pump
Original instruction
MFL67221438
Rev.00_092118
ENGLISH
ESPAÑOL
PORTUGUÊS
1,MFL67221438,영영 2018. 10. 4. 영영 11:29 Page 1

Table of Contents

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LG MULTI V 5 ARUN120LTE5 Specifications

General IconGeneral
BrandLG
ModelMULTI V 5 ARUN120LTE5
CategoryAir Conditioner
LanguageEnglish

Summary

INSTALLATION MANUAL

IMPORTANT SAFETY INSTRUCTIONS

Installation and Operation Safety

Warnings and cautions for safe installation and operation of the air conditioner.

INSTALLATION PROCESS

INSTALLATION

REFRIGERANT PIPING INSTALLATION

Pipe Connection and Valve Operation

Precautions for connecting pipes and operating service valves.

PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT

Preparation Work and Cautions

Steps for preparing unit base pan and general installation warnings.

PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT (Continued)

Pipe Connection Methods and Diameter Guidelines

Tables detailing pipe diameters based on capacity, length, and height.

Outdoor Unit Series Connections and Pipe Layout

Guidance on connecting multiple outdoor units and pipe routing.

Branch Pipe Fitting (Y Branch and Header)

Instructions for installing Y branch and header type fittings.

Vacuum Mode

Vacuum Mode Setting and Operation

How to set and operate the vacuum mode for system maintenance.

Leak Test and Vacuum Drying

Leak Test Procedure

Steps for performing a nitrogen gas leak test on the system.

Leak Test and Vacuum Drying (Continued)

Vacuum Drying Process and Cautions

Detailed steps and warnings for vacuum drying the system.

Refrigerant Charging

Heat Pump System Refrigerant Charging

Procedures for charging refrigerant into the heat pump system.

ELECTRICAL WIRING

General Wiring Regulations and Separation

Compliance with electrical standards and cable separation guidelines.

ELECTRICAL WIRING (Continued)

Checking the setting of outdoor units

Dip Switch Settings and Initial Display Check

How to check and set outdoor unit parameters using dip switches.

Checking the setting of outdoor units (Continued)

The Procedure of Automatic Addressing

Automatic Addressing Process

Step-by-step guide for automatic addressing of indoor units.

Self-Diagnosis Function

Error Indicator and Display

Explains error codes and their display formats.

Self-Diagnosis Function (Continued)

Outdoor Unit Error Codes and Causes

Lists outdoor unit errors and their corresponding causes.

Outdoor Unit Error Codes (Continued) and Network Errors

Lists remaining outdoor unit errors and network error codes.

CAUTION FOR REFRIGERANT LEAK

Refrigerant Concentration Limit and Calculation

Guidelines for calculating and managing refrigerant concentration.

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