LG MT11AH installation manual

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INSTALLATION MANUAL

AIR
CONDITIONER

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.

Ceiling Cassette - 1Way (Art Type)
Original instruction

Copyright © 2013 - 2019 LG Electronics Inc. All Rights Reserved.

MFL67855413

Rev.00_031119

ENGLISH

FRANÇAIS

2 Indoor Unit

3 INSTALLATION PARTS

4 SAFETY PRECAUTIONS

7 INSTALLATION

7 Selection of the Best Location

8 Ceiling Dimension and Hanging Bolt Location

9 Installation of Decoration Panel (Grille Type)

10 Drain Piping

11 Wiring Connection

13 Name and function of wired remote controller

14 DIP Switch Setting

TABLE OF CONTENTS

Table of contents

Installation Manual 3

Installation Parts

ENGLISH

Installation Parts

Grille type

Outlet

Name

Quantity

Shape

Drain hose

Name

Quantity

Shape

1 EA

Inlet

Clamp metal

2 EA

Paper pattern for installation

Washer for

hanging bracket

8 EA

1 EA

Wired Remote Controller

Plastic band

4 EA

Installation and Owner's manual

Insulation for

for liquid pipe

1 EA

fitting

1 SET

for gas pipe

Safety Precautions

4 Indoor Unit

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

n Be sure to read before installing the air conditioner.
n Be sure to observe the cautions specified here as they include important items related to safety.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the

following indications.

n Meanings of symbols used in this manual are as shown below.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

Be sure not to do.

Be sure to follow the instruction.

WARNING
CAUTION

!

!

WARNING

!

Installation

• Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit.

- There is risk of fire or electric shock.

• For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center.

- Do not disassemble or repair the product. There is risk of fire or electric shock.

• Always ground the product.

- There is risk of fire or electric shock.

• Install the panel and the cover of control box securely.

- There is risk of fire or electric shock.

• Always install a dedicated circuit and breaker.

- Improper wiring or installation may cause fire or electric shock.

• Use the correctly rated breaker or fuse.

- There is risk of fire or electric shock.

• Do not modify or extend the power cable.

- There is risk of fire or electric shock.

• Do not install, remove, or reinstall the unit by yourself (customer).

- There is risk of fire, electric shock, explosion, or injury.

• Be cautious when unpacking and installing the product.

- Sharp edges could cause injury. Be especially careful of the case edges and the fins on the
condenser and evaporator.

• For installation, always contact the dealer or an Authorized Service Center.

- There is risk of fire, electric shock, explosion, or injury.

• Do not install the product on a defective installation stand.

- It may cause injury, accident, or damage to the product.

• Be sure the installation area does not deteriorate with age.

- If the base collapses, the air conditioner could fall with it, causing property damage, product failure,
and personal injury.

• Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control box
cover are removed or opened.

Installation Manual 5

Safety Precautions

ENGLISH

- Otherwise, it may cause fire, electric shock, explosion or death.

• Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air
or Oxygen and Do not use Flammable gases. Otherwise, it may cause fire or explosion.

- There is the risk of death, injury, fire or explosion.

Operation

• Do not let the air conditioner run for a long time when the humidity is very high and a door or a
window is left open.

- Moisture may condense and wet or damage furniture.

• Take care to ensure that power cable could not be pulled out or damaged during operation.

- There is risk of fire or electric shock.

• Do not place anything on the power cable.

- There is risk of fire or electric shock.

• Do not plug or unplug the power supply plug during operation.

- There is risk of fire or electric shock.

• Do not touch(operate) the product with wet hands.

- There is risk of fire or electrical shock.

• Do not place a heater or other appliances near the power cable.

- There is risk of fire and electric shock.

• Do not allow water to run into electric parts.

- It may cause There is risk of fire, failure of the product, or electric shock.

• Do not store or use flammable gas or combustibles near the product.

- There is risk of fire or failure of product.

• Do not use the product in a tightly closed space for a long time.

- Oxygen deficiency could occur.

• When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product
on.

- Do not use the telephone or turn switches on or off. There is risk of explosion or fire.

• If strange sounds, or smell or smoke comes from product. Turn the breaker off or disconnect the
power supply cable.

- There is risk of electric shock or fire.

• Stop operation and close the window in storm or hurricane. If possible, remove the product from the
window before the hurricane arrives.

- There is risk of property damage, failure of product, or electric shock.

• Do not open the inlet grill of the product during operation. (Do not touch the electrostatic filter, if the
unit is so equipped.)

- There is risk of physical injury, electric shock, or product failure.

• When the product is soaked (flooded or submerged), contact an Authorized Service Center.

- There is risk of fire or electric shock.

• Be cautious that water could not enter the product.

- There is risk of fire, electric shock, or product damage.

• Ventilate the product from time to time when operating it together with a stove, etc.

- There is risk of fire or electric shock.

• Turn the main power off when cleaning or maintaining the product.

- There is risk of electric shock.

• When the product is not be used for a long time, disconnect the power supply plug or turn off the
breaker.

- There is risk of product damage or failure, or unintended operation.

• Take care to ensure that nobody could step on or fall onto the outdoor unit.

- This could result in personal injury and product damage.