LG UT18H, UT24H, UT12H, UT42H User Manual

OWNER’S MANUAL

AIR CONDITIONER

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

P/NO : MFL42619108

www.lge.com

TYPE : 4-WAY CEILING CASSETTE

ENGLISH

ITALIANO ESPAÑOL

FRANÇAIS DEUTSCH

∂§§∏¡πÃÕ

PORTUGUÊS

DUTCH

2 Ceiling Cassette-Type Air Conditioner

Ceiling Cassette- Type Air Conditioner Ownerʼs Manual

TABLE OF CONTENTS

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

■

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.

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

B. Product Introduction....................6

Name and function of parts ...........6

What to do before operation..........6

Operation Indication Lamps ..........6

Wired Remote Controller...............7

Wireless Remote Controller (Optional)

...8

C. Operating instructions.................9

Cooling Mode - Standard Operation....9

Cooling Mode - Power Cooling............9

Heating Mode ......................................9

Dehumidification Mode ......................10

Auto Changeover Mode.....................10

Auto Operation Mode ........................11

Fan Mode ..........................................11

Ariflow Setting....................................11

Temperature setting/ room temperature

check .................................................12

Sub function : Plasma

Purification(Optional) .........................12

Function setting : Child Lock .............13

Function Setting :

Mode Change Temp..........................13

Function setting :

Elevation Grill(Optional).....................14

Function setting : Filter Sign Clear ....14

Function setting : Vane Angle Control15

Setting Current Time .........................16

Programming :

Setting Simple Reservation ...............17

Programming : Weekly Reservation ..17 Programming :

Setting Sleep Reservation .................18

Programming :

Setting ON Reservation.....................19

Programming :

Setting OFF Reservation ...................20

Programming : Holiday Reservation..21

Ventilation Kit Control(Optional) ........22

D. Maintenance and Service ..........23

Indoor Unit...................................23

Purifying filter(Optional)...............24

Operation Tips!............................25

When the air conditioner is not going

.... 25

Troubleshooting Tips! Save

time and money!..........................26

Call the service immediately in

the following situations ................26

Safety Precautions

Owner's Manual 3

ENGLISH

Safety Precautions

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

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

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

WARNING

Always ground the product.

• There is a risk of electric shock.

Do not use a defective or underrated circuit breaker. Use the correctly rated breaker and fuse.

• There is risk of fire or electric shock .

Do not use a multi consent. Always use this appliance on a dedicated cicuit and breaker.

• Otherwise it can cause electric shock or fire.

For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. Do not disassemble or repair the product by yourself.

• There is risk of fire or electric shock.

Always ground the product as per the wiring diagram. Do not connect the ground wire to gas or water pipes lightening rod or telephone ground wire.

• 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 due to dust , water etc.

Use the correctly rated breaker or fuse.

• There is risk of fire or electric shock.

Do not modify or extend the power cable. If the power cable or cord has scrathes or skin peeled off or deteriorated then it must be replaced.

• There is risk of fire or electric shock.

For installation, removal or reinstall , 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. Be sure that the installation area does not deteriorate with age.

• It may cause product to fall.

Never install the outdoor unit on a moving base or a place from where it can fall down.

• The falling outdoor unit can cause damage or injury or even death of a person.

When the product is soaked (flooded or submerged) in water , contact an Authorized Service Center for repair before using it again.

• There is risk of fire or eletric shock.

Be sure to check the refrigerant to the used. Please read the label on the product.

• Incorrect refrigerant used can prevent the normal operation of the unit.

Don't use a power cord, a plug or a loose socket which is damaged.

• Otherwise it may cause a fire or electrical shock.

Do not touch , operate, or repair the product with wet hands. Hold the plug by hand when taking out

• There is risk of electric shock or fire.

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

• There is risk of fire and electric shock.

Do not allow water to run into electric parts. Install the unit away from water sources.

• There is risk of fire, failure of the product, or electric shock.

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

• There is risk of fire.

Safety Precautions

4 Ceiling Cassette-Type Air Conditioner

Indoor/outdoor wiring connections must be secured tightly and the cable should be routed properly so that there is no force pulling the cable from the connection terminals.

• Improper or loose connections can cause heat generation or fire.

Safely dispose off the packing materials. Like screws, nails, batteries, broken things etc after installation or svc and then tear away and thraw away the plastic packaging bags.

• Children may play with them and cause injury.

Make sure to check that the power cable plug is not dirty, loose or broken and then only insert the plug completely.

• Dirty, loose or broken power plug can cause electric shock or fire.

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

• Oxygen deficiency could occur and hence harm your health.

Do not open the front grille 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.

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

• There is risk of electric shock or fire.

Ventilate the product room from time to time when operating it together with a stove, or heating element etc.

• Oxygen deficiency can occur and hence harm your health.

Turn the main power off and unplug the unit when cleaning or repairing the product.

• There is risk of electric shock.

When the product is not to 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 especially kids could step on or fall onto the outdoor unit.

• This could result in personal injury and product damage.

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 to turn the unit ON/OFF .

• There is risk of fire 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.

CAUTION

Two or more people must lift and transport the product.

• Avoid personal injury.

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

• It may cause corrosion on the product.

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

• A bad connection may cause water leakage.

Keep level even when installing the product.

• To avoid vibration or noise.

Do not install the product where the noise or hot air from the outdoor unit could damage or disturb the neighborhoods.

• It may cause a problem for your neighbors and hence dispute.

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

• Low refrigerant levels may cause failure of product.

In outdoor unit the step-up capacitor supplies high voltage electricity to the electrical components. Be sure to discharge the capacitor completely before conducting the repair work.

• An charged capacitor can cause electrical shock.

When installing the unit, use the installation kit provided with the product.

• Otherwise the unit may fall and cause severe injury.

Be sure to use only those parts which are listed in the svc parts list. Never attempt to modify the equipment.

• The use of inappropriate parts can cause an electrical shock, excessive heat generation or fire.

Safety Precautions

Owner's Manual 5

ENGLISH

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 or splashing water 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.

• 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 after cleaning. Clean the filter every two weeks or more often if necessary.

• A dirty filter reduces the efficiency.

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

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

Be cautious when unpacking and installing the product.

• Sharp edges could cause injury.

If the refrigerant gas leaks during the repair, do not touch the leakaing refrigerant gas.

• The refrigernat gas can cause frostbite (cold burn)

Do not tilt the unit when removing or uninstalling it.

• The condensed water inside can spill .

Do not mix air or gas other than the specified refrigerant used in the system .

• If air enters the refrigerant system, an excessively high pressure results, causing equipment damage or injury.

If the refrigerant gas leaks during the installation, ventilate the area immediately.

• Otherwise it can be harmfull for your health.

Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards.

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 product failure.

Do not recharge or disassemble the batteries. Do not dispose off batteries in a fire.

• 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.

If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the remote if the batteries have leaked.

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

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 expose your skin or kids or plants to the cool or hot air draft.

• This could harm to your health.

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, maintaining or repairing the product at an height.

• Be careful and avoid personal injury.

6 Ceiling Cassette-Type Air Conditioner

Product Introduction

Operation Indication Lamps

1: Indoor unit 2: Outdoor unit 3: Remote controller 4: Inlet air 5: Discharge air 6: Refrigerant piping, connection

electric wire 7: Drain pipe 8: Ground wire

Wire to ground outdoor unit to

prevent electrical shocks.

If your installation has a customized control system, ask your LG dealer for

the operation that corresponds to your system.

1: Unit with remote controller 2: Unit without remote controller (when

used as simultaneous operation)

Name and function of parts

What to do before operation

Pair system or simultaneous operation system

Multi system

On/Off

Filter Sign : Lights up after 2400 hours from the time of first operating unit.

Timer : Lights up during Timer operation.

Defrost Mode : Lights up during Defrost Mode or Hot Start operation.(Heat pump model only)

Forced

•

: Lights up during the system operation.

: To operate the unit when the remote control can't be used for any reason.

Owner's Manual 7

ENGLISH

Product Introduction

Wired Remote Controller

❈ Display temperature can be different from actual room temperature if the remote controller is installed at the

place where sun-rays are falling directly or the place nearby heat source.

❈ The actual product can be different from above contents depending upon model type. ❈ When using simultaneous operation system, whenever press remote controller button, system will approximately

operate after 1~2 minutes.

OPERATION INDICATION SCREEN

SET TEMPERATURE Button WIRELESS REMOTE

CONTROLLER RECEIVER

• Some products don't receive the wireless signals.

VENTILATION Button OPERATION MODE SELECTION

Button SUBFUNCTION Button FUNCTION SETTING Button EXIT Button ON/ OFF Button ROOM TEMPERATURE Button FAN SPEED Button AIR FLOW Button RESERVATION/ TIME SETTING

Button SETTING/ CANCEL Button UP, DOWN, LEFT, RIGHT Button RESET Button

11 12

5 6

16 10

7 8

2 3

4 5

6 7 8

9 10 11 12

14 15 16

NOTE

CAUTION:

of handling the Remote Controller

• Aim at the signal receiver on the wired remote controller so as to operate.

• The remote control signal can be received at a distance of up to about 7m.

• Be sure that there are no obstructions between the remote controller and the signal receptor.

• Do not drop or throw the remote controller.

• Do not place the remote controller in a location exposed to direct sunlight, or near the heating unit, or any other heat source.

• Block a strong light over the signal receptor with a curtain or etc. so as to prevent the abnormal operation. (ex:electronic quick start, ELBA, inverter type fluorescent lamp)

❈

The wireless remote controller do not operate the vane angle control.(4Way Type)

❈

For more details refer to the Wireless Remote Control Accessory manual.

❈

The actual product can be different from above contents depending upon model type.

❈

The wireless remote controller does not operate When using simultaneous operation system.

8 Ceiling Cassette-Type Air Conditioner

Product Introduction

Wireless Remote Controller (Accessory)

This air-conditioner is equipped with wired remote controller basically. But if you want to be available with wireless remote controller, you pay for it.

PQWRHDF0

NOTE

Owner's Manual 9

ENGLISH

Operating Instructions

Cooling Mode - Standard Operation

Press button to turn on the indoor.

Press button to select Cooling operation mode.

Adjust the desired temperature by pressing buttons.

Press button to check the Room temperature. When setting the desired temperature higher than room temperature, only ventilation wind is blow out instead of cooling wind.

Operating instructions

❖ Setting Temp Range : 18˚C~30˚C.

Cooling Mode - Power Cooling

Press button to turn on the indoor.

Press button to select Cooling operation mode.

Press button continuously until "Po" displayed.

Press button to turn on the indoor.

Press button to select Heating mode.

Adjust the desired temperature by pressing buttons.

When setting the desired temperature lower than room temperature, there is only ventilation wind.

It makes the room cool using pleasant and fresh air quickly

Heating Mode

❖ Setting Temp Range : 16˚C~30˚C.

What is power cooling?

• Desired temperature: 18°C

• Fan Speed: special high cool (Power air) ❈ It quickly lowers the room temperature by operating.

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