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LG ARNU123TRC4 User Manual

LG ARNU123TRC4
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CEILING CASSETTE INDOOR UNIT
INSTALLATION MANUAL
4-Way 3’ x 3’ Models:
ARNU243TPC4
ARNU283TPC4
ARNU363TNC4
ARNU423TMC4
ARNU483TMC4
1-Way Models:
ARNU073TUC4
ARNU093TUC4
ARNU123TUC4
ARNU183TTC4
ARNU243TTC4
4-Way 2’ x 2’ Models:
ARNU053TRC4
ARNU073TRC4
ARNU093TRC4
ARNU123TRC4
ARNU153TQC4
ARNU183TQC4
2-Way Models:
ARNU183TLC4
ARNU243TLC4
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LG ARNU123TRC4 Specifications

General IconGeneral
BrandLG
ModelARNU123TRC4
CategoryAir Conditioner
LanguageEnglish

Summary

Introduction and Unit Models

Required Installation Tools

Lists necessary tools field-provided for proper unit installation.

Required Installation Parts

Lists essential parts that must be supplied by the field for installation.

Unit Nomenclature Explained

Details the meaning of each character in the unit model number.

Safety and Handling Precautions

Proprietary Data Notice

States the confidential nature of the document's contents.

General Safety Instructions

Provides critical warnings and guidelines to prevent injury or damage.

General Data and Specifications

R410A Refrigerant Information

Details properties and handling precautions for R410A refrigerant.

4-Way Cassette Unit Specifications

Provides technical specifications for 4-Way cassette models.

2-Way Cassette Unit Specifications

Provides technical specifications for 2-Way cassette models.

1-Way Cassette Unit Specifications

Provides technical specifications for 1-Way cassette models.

Unit Dimensions and Layout

Shows detailed physical dimensions and mounting points for units.

Electrical Data and Power Requirements

Outlines electrical ratings, power input, and wiring considerations.

Refrigerant Piping Diagrams

Illustrates refrigerant circuit configurations for different unit types.

Installation Procedures

General Installation Guidelines

Specifies recommended locations, clearances, and general installation principles.

Unit Inspection and Preparation

Instructions for unpacking, inspecting for damage, and preparing the unit.

Cassette Chassis Mounting

Step-by-step guide for mounting the main chassis of the cassette unit.

Refrigerant Piping and Insulation

Details on preparing, flaring, connecting, and insulating refrigerant pipes.

Electrical Wiring

Instructions for connecting power and communication cables to the unit.

Accessory Installation

Guides for installing optional sensors, controllers, and the decoration panel.

Condensate Drain Pipe

Guidance on routing, connecting, and insulating the drain pipe.

Control System Setup

Indoor Unit Control Options

Explains options for controlling the indoor unit via remote or group.

DIP Switch Configuration

Configuration settings using DIP switches for master/slave and data rates.

Group Control Wiring Examples

Examples of wiring multiple units for group control.

Installation Checklist

Pre-Installation Checks

Verifies structural support, airflow, ductwork, and initial unit setup.

Installation Completion Checks

Confirms proper refrigerant piping, electrical, condensate, and insulation installation.

Control System Checks

Validates wiring, settings, and connections for zone controllers and the unit's control panel.

Support and Contact Information

Contacting Support for Issues

Provides contact information for unit replacements, missing parts, and technical help.

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