LG LTNC186QLE0 Owner’s Manual

OWNER’S MANUAL

AIR CONDITIONER

Please read this manual carefully before operating your set and retain it for future reference.

TYPE : CEILING CASSETTE

www.lg.com

P/NO : MFL68122301

Ceiling Cassette Air Conditioner Ownerʼs Manual

TABLE OF CONTENTS

Safety Precautions.........................	3
Prior to Operation ..........................	6
Introduction ....................................	7
Electrical Safety .............................	8
Operating Instructions ..................	9
Wireless Remote Controller........	10
Part Description (Optional) .........	14
Maintenance and Service............	38

FOR YOUR RECORDS

Write the model and serial numbers here:

Model #

Serial #

You can find them on a label on the side of each unit.

Dealer's Name

Date Purchased

νStaple your receipt to this page in the event you need it to prove date of purchase or for warranty issues.

READ THIS MANUAL

Inside you will find many helpful hints on how to use and maintain your air conditioner properly. Just a little preventive care on your part can save you a great deal of time and money over the life of your air conditioner.

You'll find many answers to common problems in the chart of troubleshooting tips. If you review our chart of

Troubleshooting Tips first, you may not need to call for service at all.

PRECAUTION

•Contact the authorized service technician for repair or maintenance of this unit.

•Contact the installer for installation of this unit.

•The air conditioner is not intended for use by young children or invalids without supervision.

•Young children should be supervised to ensure that they do not play with the air conditioner.

•When the power cord is to be replaced, replacement work shall be performed by authorized personnel only using only genuine replacement parts.

•Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.

2 Ceiling Cassette Air Conditioner

Safety Precautions

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

νIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

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

Be sure not to do.

Be sure to follow the instruction.

νOUT DOOR UNIT'S FEATURE MAY NOT BE SAME AS THAT OF MANUAL DRWAING.

νInstallation

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.

Do not modify or extend the power cable.

•There is risk of fire or electric shock.

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

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

Always install a dedicated circuit and breaker.

•Improper wiring or installation may cause fire or electric shock

Do not install, remove, or re-install the unit by yourself (customer).

•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.

Use the correctly rated breaker or fuse.

•There is risk of fire or electric shock.

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.

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.

Owner's Manual 3

Safety Precautions

ν 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.

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

•There is risk of fire or 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.

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

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 touch(operate) the product with wet hands.

•There is risk of fire or electrical shock.

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

•There is risk of fire or failure of product.

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

•There is risk of electric shock or fire.

Do not place anything on the power cable.

•There is risk of fire or electric shock.

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

•There is risk of fire and electric shock.

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

• Oxygen deficiency could occur.

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	Be cautious that water
(flooded or submerged),	could not enter the product.
contact an Authorized
Service Center.
• There is risk of fire or electric	• There is risk of fire, electric shock,
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.

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.

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

• There is risk of electric shock.

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

•This could result in personal injury and product damage.

4 Ceiling Cassette Air Conditioner

Safety Precautions

ν Installation

Always check for gas (refrigerant) leakage after installation or repair of product.

•Low refrigerant levels may cause failure of product.

Install the drain hose to ensure that water is drained away properly.

•A bad connection may cause water leakage.

Do not install the product where the	Use two or more people to
noise or hot air from the outdoor unit	lift and transport the
could damage the neighborhoods.	product.
• It may cause a problem for your	• Avoid personal injury.
neighbors.

Keep level even when installing the product.

•To avoid vibration or water leakage.

Do not install the product where it will be exposed to sea wind (salt spray) directly.

•It may cause corrosion on the product.

Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation.

ν Operation

Do not expose the skin directly to cool air for long periods of time.

(Don't sit in the draft.)

• This could harm to your health.

Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system.

• There is risk of damage or loss of property.

Do not block the inlet or outlet of air flow.

• It may cause product failure.

Use a soft cloth to clean. Do not use harsh detergents, solvents, etc.

•There is risk of fire, electric shock, or damage to the plastic parts of the product.

Do not touch the metal parts of the product when removing the air filter. They are very sharp!

• There is risk of personal injury.

Do not step on or put anyting on the product. (outdoor units)

•There is risk of personal injury and failure of product.

Always insert the filter securely. Clean the filter every two weeks or more often if necessary.

•A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage.

Do not insert hands or other objects through the air inlet or outlet while the product is operated.

•There are sharp and moving parts that could cause personal injury.

Do not drink the water	Use a firm stool or ladder
drained from the product.	when cleaning or
	maintaining the product.
• It is not sanitary and could cause	• Be careful and avoid personal
serious health issues.	injury.

Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries.

• There is risk of fire or explosion

Do not recharge or disassemble	All batteries (whether installed or
the batteries. Do not dispose of	attached) should not be exposed
batteries in a fire.	to excess heat like sunlight or
	similar source.
• They may burn or explode.	• They may burn or explode.

If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked.

•The chemicals in batteries could cause burns or other health hazards.

Owner's Manual 5

Prior to Operation

Preparing for operation

1.Contact an installation specialist for installation.

2.Plug in the power plug properly.

3.Use a dedicated circuit.

4.Do not use an extension cord.

5.Do not start/stop operation by plugging/unplugging the power cord.

6.If the cord/plug is damaged, replace it with only an authorized replacement part.

Usage

1.Being exposed to direct airflow for an extended period of time could be hazardous to your health. Do not expose occupants, pets, or plants to direct airflow for extended periods of time.

2.Due to the possibility of oxygen deficiency, ventilate the room when used together with stoves or other heating devices.

3.Do not use this air conditioner for non-specified special purposes (e.g. preserving precision devices, food, pets, plants, and art objects). Such usage could damage the items.

Cleaning and maintenance

1.Do not touch the metal parts of the unit when removing the filter. Injuries can occur when handling sharp metal edges.

2.Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation, leading to possible electric shock.

3.When cleaning the unit, first make sure that the power and breaker are turned off. The fan rotates at a very high speed during operation. There is a possibility of injury if the unitʼs power is accidentally triggered on while cleaning inner parts of the unit.

Service

For repair and maintenance, contact your authorized service dealer.

6 Ceiling Cassette Air Conditioner

Introduction

Symbols used in this Manual

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that could cause harm to the air conditioner.

NOTICE This symbol indicates special notes.

Features

WARNING: This appliance should be installed in accordance with national wiring regulations. This guide acts as a guide to help to explain product features.

Anti-bacteria

Air Outlet

Air Inlet

Remote

Controller

Owner's Manual 7

Electrical Safety

WARNING: This appliance must be properly grounded.

To minimize the risk of electric shock, you must alway plug into a grounded oulet.

Preferred method

Ensure proper ground exists before use

WARNING: Do not cut or remove the grounding prong from the power wire.

WARNING: Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal and not insulated, and the wall receptacle is grounded through the house wiring.

WARNING: If you have any doubt whether the air conditioner is properly grounded, have the wall receptacle and circuit checked by a qualified electrician.

8 Ceiling Cassette Air Conditioner