OWNER’S MANUAL

AIR CONDITIONER

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

TYPE : ART COOL

Original instruction

P/NO : MFL68800405

www.lg.com

Wall Mounted Type Indoor Unit Owner’s Manual

TABLE OF CONTENTS

Safety Precautions ....................3

Prior to Operation......................6

Product Introduction.................7

Operating Instructions..............7

Maintenance and Service .........8

Before you Call for Service....10

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 n Staple 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 Indoor Unit

Safety Precautions

Safety Precautions

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

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

WARNING

This symbol indicates the possibility of death or serious injury.

CAUTION

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

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

Be sure not to do.

Be sure to follow the instruction.

WARNING

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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.

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 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.

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.

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

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

Owner’s Manual 3

Safety Precautions

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.

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.

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Operation

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 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 small 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.

4

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

• This could result in personal injury and product damage.

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.

Indoor Unit

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

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

Safety Precautions

CAUTION

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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.

Keep level even when installing the product.

• To avoid vibration or water leakage.

Use two or more people to lift and transport the product.

• Avoid personal injury.

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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 drained from the product.

• It is not sanitary and could cause serious health issues.

Use a firm stool or ladder when cleaning or maintaining the product.

• Be careful and avoid personal injury.

Owner’s Manual 5

Prior to operation

Prior to Operation

Preparing for operation

1. Contact an installation specialist for installation.

2. Use a dedicated circuit.

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 unit’s power is accidentally triggered on while cleaning inner parts of the unit.

Service

For repair and maintenance, contact your authorized service dealer.

6 Indoor Unit

Product Introduction

Product Introduction

Here is a brief introduction of the indoor units.

Indoor Units

Front grille

Air inlet

On/Off button

Signal receiver

Air filter

Air outlet

Operation lamp

Vertical louver & Horizontal vane

Operating Instructions

Auto Restart Function

In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions.

Owner’s Manual 7

Maintenance and Service

Maintenance and Service

Before performing any maintenance, turn off the main power to the system.

Never use any of the followings:

• Water hotter than 40 °C.

Could cause deformation and/or discoloration.

• Volatile substances.

Could damage the surfaces of the air conditioner.

Air Filters

The air filters behind the front panel / grill should be checked and cleaned once in every 2 weeks or more often if necessary. To remove the filters see the self explanatory diagrams for each model type. Clean the filters with a vacuum cleaner or warm soapy water. If dirt is not easily removed, wash with a solution of detergent in luke warm water. Dry well in shade after washing and reinstall the filters back in place.

Plasma Filters

The plasma filters behind the air filter should be checked and cleaned once in every 3 months or more often if necessary. To remove the filters see the self explanatory diagrams for each model type. Clean the filters with a vacuum cleaner. If it is dirty wash it with water and dry well in shade an install back in place.

Deodorizer Filters

Remove the deodorizer filters behind the air filter and expose them in direct sunlight for 2 hours.

And then insert these filters into original position.

Powder

Gasoline

Removal of Filters

Two different methods to open the front panel based on types of air conditioner as below ;

Type 1: Open the front panel as shown.

Then pull the filter tab slightly forward to remove the air filter.

After removing the air filter remove the plasma and deodorizer filter by slightly pulling forward.

Don't touch this plasma filter within 10 seconds after opening the inlet grille, it may cause an electric shock.

8 Indoor Unit

Maintenance and Service

When the air conditioner is not going to be used for a long time.

When it is not going to be used for a long time.

Operate the air conditioner at the following settings for 2 to 3 hours.

• Type of operation: Fan operation mode.

• This will dry out the internal mechanisms.

When the air conditioner is to be used again.

Clean the air filter and install it in the indoor unit.

(Refer to page for cleaning it.)

Turn off the breaker.

Check that the air inlet and outlet of the indoor/outdoor unit are not blocked.

Turn off the breaker when the air conditioner is not going to be used for a long time.

Dirt may collect and may cause a fire.

Check that the ground wire is connected correctly. It may be connect to the indoor unit side.

Helpful information

The air filters and your electiric bill.

If the air filters become clogged with dust, the cooling capacity will drop, and 6 % of the electricity used to operate the air conditioner will be wasted.

Operation Tips

Do not overcool the room.

Keep blinds or curtains closed.

This is not good for the health and wastes electricity.

Do not let direct sunshine enter the room when the air conditioner is in operation.

Keep the room temperature uniform.

Adjust the vertical and horizontal airflow direction to ensure a uniform temperature in the room.

Make sure that the doors and windows are shut tight.

Clean the air filter regularly.

Avoid opening doors and windows as much as possible to keep the cool air in the room.

Blockages in the air filter reduce the airflow and lower cooling and dehumidifying effects. Clean at least once every two weeks.

Ventilate the room occasionally.

Since windows are kept closed, it is a good idea to open them and ventilate the room now and then.

Owner’s Manual 9

Maintenance and Service

Before you call for service...

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Troubleshooting Tips! Save time and money!

Check the following points before requesting repairs or service.... If the malfunction persist, please contact your dealer.

The air conditioner does not operate.

• Have you made a mistake in timer operation?

• Has the fuse blown or has the circuit breaker been tripped?

The room has a peculiar odor.

• Check that this is not a damp smell exuded by the walls, carpet, furniture or cloth items in the room.

It seems that condensation is leaking from the air conditioner.

• Condensation occurs when the airflow from the air conditioner cools the warm room air.

Air conditioner does not operate for about

3 minutes when restart.

• This is the protector of the mechanism.

• Wait about three minutes and operation will begin.

10

Does not cool or heat effectively.

The air conditioner operation is noisy.

Crack sound is heard.

Remote control display is faint, or no display at all.

• Is the air filter dirty?

See air filter cleaning instructions.

• The room may have been very hot when the room air conditioner was first turned on. Allow time for it to cool down.

• Has the temperature been set incorrectly?

• Are the indoor unit's air inlet or outlet vents obstructed?

• For a noise that sounds like water flowing.

-This is the sound of freon flowing inside the air conditioner unit.

• For a noise that sounds like the compressed air releasing into atmosphere.

-This is the sound of the dehumidifying water being processed inside the air conditioning unit.

• This sound is generated by the expansion/ constriction of the front panel, etc. due to changes of temperature.

Filter sign lamp

(LED) is ON.

• Are the batteries depleted?

• Are the batteries inserted in the opposite (+) and (-) directions? 

• Cleaning the filter, press the Timer button and

◀ button of wired remote controller at the same time for 3 sec.

NOTE

WATER RESISTANT: The outdoor side of this appliance is WATER RESISTANT.

The indoor side is not water resistant and should not be exposed to excess water.

Indoor Unit

[Representative] LG Electronics Inc. EU Representative

Krijgsman 1, 1186 DM Amstelveen, The Netherlands

[Manufacturer] LG Electronics Inc. Changwon 2nd factory

84, Wanam-ro, Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA