LG ARNU363B8A4 User Manual

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.
Ceilling Concealed Duct
INSTALLATION MANUAL
AIR
CONDITIONER
P/NO : MFL65003103
Rev.00_020718
http://www.lghvac.com
www.lg.com
Copyright © 2015 - 2018 LG Electronics Inc. All Rights Reserved.
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LG ARNU363B8A4 Specifications

General

Brand	LG
Model	ARNU363B8A4
Category	Air Conditioner
Language	English

Summary

Installation: Site Selection

Best Location Criteria

Criteria and guidance for choosing the optimal installation site for the unit.

Indoor Unit Installation Steps

Fixing Bolts and Suspension Anchors

Suspension Bolt Mounting Procedure

Wiring Connection Procedures

Terminal Block Wiring Instructions

Connecting wires to control board terminals based on unit type.

Cable Connection and Drainage Testing

Drainage System Verification

Steps to test the indoor unit's drainage system for proper function.

Plumbing and Refrigerant Piping

Refrigerant Piping Principles

Three core principles for refrigerant piping: Drying, Cleanliness, and Airtightness.

Insulation and Post-Installation Checks

Operational and Safety Checklists

List of checks including air distribution, drainage, wiring, and grounding.

Unit Declination and Drain Piping

Importance of Unit Declination

Importance of unit declination for proper drain function and insulation thickness.

Drain Piping Gradient Guidelines

Instructions for laying drain pipes with downward inclination to prevent backflow.

Drain Piping and Handover Procedures

Drain Piping Requirements

Drain Pump Test Procedure

Steps to test the drain pump operation, including leakage checks.

Dip Switch Settings

Indoor Unit Dip Switch Configuration

Configuration of dip switches for indoor unit functions like communication and group control.

Outdoor Unit Dip Switch Configuration

Group Control Configuration

Group Control 1: Wired Controller Setup

Setting up Group Control 1 with a wired remote controller and indoor units.

DIP Switch for Master/Slave Setting

Group Control: Multiple Wired Controllers

Group Control 2: Wired Controller Configuration

Configuration for Group Control 2 using multiple wired remote controllers.

Group Control: Mixed Unit Configurations

Group Control 3: Mixed Unit Setup