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LG MW122C4 - User Manual

LG MW122C4
44 pages
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www.lg.com
Copyright © 2024 LG Electronics Inc. All Rights Reserved
Rev.00
INSTALLATION MANUAL
AIR CONDITIONER
Read this installation manual thoroughly before installing the appliance
and keep it handy for reference at all times.
TYPE: WALL MOUNTED
EN ENGLISH SP ESPAÑOL

Table of Contents

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LG MW122C4 Specifications

General IconGeneral
BrandLG
ModelMW122C4
CategoryAir Conditioner
LanguageEnglish

Summary

Safety Instructions

Important Safety Instructions

Basic safety precautions to reduce risks of explosion, fire, electric shock, injury, or scalding.

Caution

Precautions to reduce risk of minor injury, malfunction, or damage to product or property.

Installation Diagram

Warning

Installation must be performed by authorized personnel according to national wiring standards.

Select the Installation Locations

Location for Installing Indoor Unit

Criteria for selecting an indoor unit installation site for optimal air flow and accessibility.

Location for Installing Outdoor Unit

Criteria for selecting an outdoor unit installation site for proper ventilation and environmental considerations.

Indoor Unit Installation

Installing the Mounting Plate

Step-by-step guide for mounting the indoor unit's base plate securely on the wall.

Drill a Hole for Pipe

Instructions for drilling a wall hole, ensuring proper tilt for pipe passage.

Indoor Unit Pipe Installation

Guidance on routing pipes and cables through the wall and connecting them to the indoor unit.

Pipe Joints Thermal Insulation

Method for insulating and securing pipe joints with thermal material and vinyl tape.

Pipes Thermal Insulation

Specification for drain hose placement and insulation material thickness for pipes.

Piping Connection

Steps for connecting indoor unit pipes, including sealing caps and tightening procedures.

Connecting of the Cable

Circuit Breaker

Requirement to install a certified circuit breaker for the appliance's power source.

Indoor Unit

Instructions for connecting power cord to the indoor unit terminals, including wire insertion and securing.

Outdoor Unit

Steps for connecting power cord to the outdoor unit terminals after removing the access door.

Wiring Diagram

Caution

Safety advice regarding individual power circuits, cable thickness, wiring checks, and earth leakage breakers.

Outdoor Unit Installation

Install Drain Port and Drain Hose (for heat-pump model only)

How to install a drain port and hose for condensate water management in heating mode.

Install and Fix Outdoor Unit

Instructions for securely fixing the outdoor unit on a flat surface or wall to prevent vibration.

Outdoor Unit Piping Connection

Steps for connecting pipes to the 2-way and 3-way valves on the outdoor unit.

Charging the Refrigerant

Charge Using the Refrigerant Cylinder without a Siphon

Method for charging refrigerant, typically R410A, using an inverted cylinder.

Air Purging

How to Purge Air Tubes

Procedure for removing air and moisture from the refrigerant cycle using a vacuum pump.

Pump Down

Warning

Warning about operating the appliance while disconnected from the pipe, which can cause explosion or damage.

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