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LG MULTI F LMU183HV User Manual

LG MULTI F LMU183HV
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MULTI
F
MAX
MULTI
F
OUTDOOR UNIT
INSTALLATION MANUAL
Multi-Zone Heat Pump Systems
1.5 to 5 Tons
Dual and Tri-Zone
Multi F
Quad-Zone
Multi F
Eight-Zone
Multi F MAX

Table of Contents

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LG MULTI F LMU183HV Specifications

General IconGeneral
BrandLG
ModelMULTI F LMU183HV
CategoryAir Conditioner
LanguageEnglish

Summary

SAFETY INSTRUCTIONS

General Safety Warnings and Precautions

Covers DANGER, WARNING, CAUTION, and NOTE symbols for safe operation.

Installation Safety Guidelines

Provides critical safety instructions for installing the unit to prevent hazards.

GENERAL DATA

Outdoor Unit Specifications

Provides detailed specifications for Multi F outdoor units.

Outdoor Unit Electrical Data

Presents electrical data for Multi F outdoor units.

TRANSPORTING / LIFTING

Outdoor Unit Handling and Weight

Provides guidelines for safely transporting and lifting the outdoor unit.

PLACEMENT CONSIDERATIONS

Selecting the Best Outdoor Unit Location

Details criteria for choosing an optimal installation location for the outdoor unit.

Allowable Clearances and Service Access

Specifies minimum clearances required for safe operation and maintenance.

MOUNTING / ANCHORING THE OUTDOOR UNITS

Outdoor Unit Mounting and Anchoring

Details general specifications for mounting and anchoring outdoor units.

General Refrigerant Piping System Information

Piping Length and Elevation Limitations

Specifies maximum allowable piping lengths and elevation differences.

Selecting Copper Piping

Guides on choosing and preparing field-supplied copper piping.

Copper Expansion and Contraction

Explains how to account for thermal expansion and contraction in copper piping.

FLARING AND BRAZING PROCEDURES

Flaring Procedure

Step-by-step guide for performing correct flaring work on pipe ends.

Brazing Procedure

Instructions for executing proper brazing techniques for refrigerant connections.

INSTALLING MULTI F SYSTEMS

Outdoor Unit to Indoor Unit Piping Connections

Illustrates how to connect piping between outdoor and indoor units.

INSTALLING MULTI F MAX SYSTEMS

Multi F MAX Outdoor Unit System Piping Connections

Details piping connection methods for Multi F MAX outdoor units.

ELECTRICAL

Power Wiring and Communication Cables Connections

Guides on connecting power wiring and communication cables.

Power Supply and Wiring Specifications

Outlines specifications for power supply and wiring requirements.

FINAL INSTALLATION PROCEDURES

Triple Leak / Pressure Test Procedure

Step-by-step guide for performing a triple leak and pressure test.

Deep Evacuation Procedure

Outlines the process for deep evacuation of the refrigerant system.

Refrigerant Charge Calculation

Provides formulas for calculating additional refrigerant charge needed.

Test Running

Test Running Procedure

Steps to perform after installation to ensure proper operation.

Performance Evaluation and Refrigerant Check

Guides on evaluating system performance and checking refrigerant charge.

Function

DIP Switch Settings for Optional Modes

Explains how to set DIP switches for various optional functions.

Wiring Error Check

Guides on checking wiring connections for errors.

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