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LG ARUM121BTE5 - User Manual

LG ARUM121BTE5
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INSTALLATION MANUAL
Variable Refrigerant Flow Outdoor Units
6.0 to 42.0 Tons

Table of Contents

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Summary

Safety Precautions

Specifications

208-230 V Outdoor Units

Details specifications for single and dual frame 208-230V outdoor units.

Electrical Data

Placement Considerations

Selecting the Best Location for the Outdoor Unit(s)

Guidance on choosing the optimal location for outdoor units.

Outdoor Unit Clearance Requirements

Specifies minimum clearances for proper outdoor unit airflow and service.

Mounting; Anchoring the Outdoor Unit(s)

Mounting; Anchoring the Outdoor Unit(s)

Procedures for securely mounting and anchoring outdoor units.

General Refrigerant Piping System Information

Refrigerant Safety Standards; Device Connection Limitations

Information on safety standards and connection limits for refrigerant piping.

Refrigerant System Engineering

Flaring and Brazing Procedures

Installing for Heat Pump Operation

Indoor Unit Y-Branch Kits

Details on LG Y-branch kits for indoor unit connections.

Outdoor Unit Y-Branches

Guidelines for installing outdoor unit Y-branches.

Outdoor Unit Y-Branch Kits

Model numbers and diagrams for outdoor unit Y-branch kits.

Installing for Heat Recovery Operation

Y-Branch Kits

Details on LG Y-branch kits for heat recovery unit connections.

Header Kits

Information on LG header kits for heat recovery system refrigerant flow.

Heat Recovery Units

Specifications and requirements for heat recovery units.

Heat Recovery Unit Connections and Limitations

Details on connecting heat recovery units and their operational limits.

Piping Connections; Pipe Routes

Describes piping connections and route options for heat recovery operation.

Removing the Leak Prevention Caps

Procedure for removing leak prevention caps from heat recovery unit connections.

Insulation

Electrical

Power Wiring and Communication Cable Terminations

Details on properly terminating power and communication wiring.

Power Supply; Power Wiring Specifications

Specifies power requirements and wiring details for outdoor and indoor units.

Communication Cable Specifications From Outdoor Unit to Indoor Units; Heat Recovery Units

Details on communication cable types and installation for system communication.

Pre-Commissioning

Triple Leak; Pressure Check

Procedure for performing triple leak and pressure tests on the system.

Triple Evacuation Procedure

Steps for performing triple evacuation of the refrigerant system.

Pre-commissioning Start; Outdoor Unit DIP Switch Settings

Settings for outdoor units and DIP switches before pre-commissioning.

Setting Outdoor Units to Heat Pump or Heat Recovery Systems

How to configure outdoor units for heat pump or heat recovery modes.

Optional Modes

Overview of optional modes and their settings.

Setting the Optional Modes

Detailed steps for configuring various optional system modes.

Self Diagnostics Check

Procedure for performing self-diagnostics on outdoor units.

Indoor Unit Auto Addressing

Procedure for automatically assigning addresses to indoor units.

Central Control

Guidelines for assigning central control addresses to system components.

Addressing with Heat Recovery Units (For Heat Recovery Systems Only)

Steps for assigning addresses to heat recovery units.

SW01 M; SW03 M; SW04 M (DIP and Tact Switches) for Manual Valve Addressing

Using DIP switches for manual valve addressing on heat recovery units.

ERROR CODES

General Information

Introduction to error codes and their levels.

INSTALLATION CHECKLIST

PRE-COMMISSIONING CHECKLIST

COMMISSIONING NOTES

Summary

Safety Precautions

Specifications

208-230 V Outdoor Units

Details specifications for single and dual frame 208-230V outdoor units.

Electrical Data

Placement Considerations

Selecting the Best Location for the Outdoor Unit(s)

Guidance on choosing the optimal location for outdoor units.

Outdoor Unit Clearance Requirements

Specifies minimum clearances for proper outdoor unit airflow and service.

Mounting; Anchoring the Outdoor Unit(s)

Mounting; Anchoring the Outdoor Unit(s)

Procedures for securely mounting and anchoring outdoor units.

General Refrigerant Piping System Information

Refrigerant Safety Standards; Device Connection Limitations

Information on safety standards and connection limits for refrigerant piping.

Refrigerant System Engineering

Flaring and Brazing Procedures

Installing for Heat Pump Operation

Indoor Unit Y-Branch Kits

Details on LG Y-branch kits for indoor unit connections.

Outdoor Unit Y-Branches

Guidelines for installing outdoor unit Y-branches.

Outdoor Unit Y-Branch Kits

Model numbers and diagrams for outdoor unit Y-branch kits.

Installing for Heat Recovery Operation

Y-Branch Kits

Details on LG Y-branch kits for heat recovery unit connections.

Header Kits

Information on LG header kits for heat recovery system refrigerant flow.

Heat Recovery Units

Specifications and requirements for heat recovery units.

Heat Recovery Unit Connections and Limitations

Details on connecting heat recovery units and their operational limits.

Piping Connections; Pipe Routes

Describes piping connections and route options for heat recovery operation.

Removing the Leak Prevention Caps

Procedure for removing leak prevention caps from heat recovery unit connections.

Insulation

Electrical

Power Wiring and Communication Cable Terminations

Details on properly terminating power and communication wiring.

Power Supply; Power Wiring Specifications

Specifies power requirements and wiring details for outdoor and indoor units.

Communication Cable Specifications From Outdoor Unit to Indoor Units; Heat Recovery Units

Details on communication cable types and installation for system communication.

Pre-Commissioning

Triple Leak; Pressure Check

Procedure for performing triple leak and pressure tests on the system.

Triple Evacuation Procedure

Steps for performing triple evacuation of the refrigerant system.

Pre-commissioning Start; Outdoor Unit DIP Switch Settings

Settings for outdoor units and DIP switches before pre-commissioning.

Setting Outdoor Units to Heat Pump or Heat Recovery Systems

How to configure outdoor units for heat pump or heat recovery modes.

Optional Modes

Overview of optional modes and their settings.

Setting the Optional Modes

Detailed steps for configuring various optional system modes.

Self Diagnostics Check

Procedure for performing self-diagnostics on outdoor units.

Indoor Unit Auto Addressing

Procedure for automatically assigning addresses to indoor units.

Central Control

Guidelines for assigning central control addresses to system components.

Addressing with Heat Recovery Units (For Heat Recovery Systems Only)

Steps for assigning addresses to heat recovery units.

SW01 M; SW03 M; SW04 M (DIP and Tact Switches) for Manual Valve Addressing

Using DIP switches for manual valve addressing on heat recovery units.

ERROR CODES

General Information

Introduction to error codes and their levels.

INSTALLATION CHECKLIST

PRE-COMMISSIONING CHECKLIST

COMMISSIONING NOTES

LG ARUM121BTE5 Specifications

General IconGeneral
Airflow Rate (Indoor, CFM)424
Refrigerant TypeR410A
RefrigerantR410A
Air Flow (Indoor)424 CFM
Capacity (Cooling, Btu/hr)12000

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