LG ATNH21GNLED, ATNH18GPLED, UT24W, UT30W, ATNH09GRLED Manual

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LG Ceiling Cassette-Type

Air Conditioner

OWNER'S MANUAL

Dear Owner

Thank you for installing LG Air Conditioner. Your best choice guarantees you a great performance and service to make your life comfortable & pleasant.

IMPORTANT

•Please read this owner's manual carefully and thoroughly before installing and operating your room air conditioner.

•Please retain this owner's manual for future reference after reading it thoroughly.

ENGLISH

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Ceiling CassetteType Air Conditioner Owner’s Manual

TABLE OF CONTENTS

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

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.

2 Ceiling Cassette-Type Air Conditioner

Safety Precautions

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	This symbol indicates the possibility of death or serious injury.
CAUTION	This symbol indicates the possibility of injury or damage.

ENGLISH

Always ground the product.

•There is a risk of electric shock.

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.

Use the correctly rated breaker or fuse.

•There is risk of fire or electric shock.

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.

WARNING

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

•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.

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

•Otherwise it can cause electric shock or fire.

Install the panel and the cover of control box securely.

•There is risk of fire or electric shock due to dust , water etc.

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.

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.

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

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

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	Don't use a power cord, a plug or a loose
used. Please read the label on the product.	socket which is damaged.

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

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

•There is risk of fire and electric shock.

•Otherwise it may cause a fire or electrical 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 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 store or use or even allow flammable gas or combustibles near the product.

•There is risk of fire.

Owner's Manual 3

Safety Precautions

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.

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.

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.

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.

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

•Otherwise the unit may fall and cause severe injury.

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.

Ventilate the product room from time to	Turn the main power off and unplug the
time when operating it together with a	unit when cleaning or repairing the
stove, or heating element etc.	product.
• Oxygen deficiency can occur and hence harm	• There is risk of electric shock.
your health.
Take care to ensure that nobody	Take care to ensure that power cable
especially kids could step on or fall onto	could not be pulled out or damaged
the outdoor unit.	during operation.
• This could result in personal injury and	• There is risk of fire or electric shock.

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.

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.

Do not plug or unplug the power supply plug to turn the unit	When flammable gas
ON/OFF .	for ventilation before

• There is risk of fire or electric shock.

•Do not use the telephone explosion or fire.

Two or more people must lift and transport the product.

•Avoid personal injury.

Keep level even when installing the product.

•To avoid vibration or noise.

CAUTION

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

•It may cause corrosion on the product.

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.

4 Ceiling Cassette-Type Air Conditioner

		Safety Precautions
Do not use the product for special purposes,	Do not block the inlet or outlet of air flow.	Use a soft cloth to clean. Do not use
such as preserving foods, works of art, etc. It		harsh detergents, solvents or splashing
is a consumer air conditioner, not a precision		water etc .
refrigeration system.
• There is risk of damage or loss of property.	• It may cause product failure.	• There is risk of fire, electric shock, or damage
		to the plastic parts of the product.
Do not touch the metal parts of the	Do not step on or put anyting on the	Always insert the filter securely after
product when removing the air filter.	product. (outdoor units)	cleaning. Clean the filter every two weeks
		or more often if necessary.
• There is risk of personal injury.	• There is risk of personal injury and failure of	• A dirty filter reduces the efficiency.
	product.

Do not insert hands or other objects	Be cautious when unpacking and
through the air inlet or outlet while the	installing the product.
product is operating.
• There are sharp and moving parts that could	• Sharp edges could cause injury.
cause personal injury.
Do not tilt the unit when removing or	Do not mix air or gas other than the
uninstalling it.	specified refrigerant used in the system .
• The condensed water inside can spill .	• If air enters the refrigerant system, an
	excessively high pressure results, causing
	equipment damage or injury.

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

•The refrigernat gas can cause frostbite (cold burn)

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.

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.

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.

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

afire.

•They may burn or explode.

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.

ENGLISH

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.

Owner's Manual 5

Product Introduction

Product Introduction

Nameandfunctionofparts

6 7		1: Indoor unit
5		2: Outdoor unit
		3: Remote controller
	2
		4: Inlet air
1		5: Discharge air
		6: Refrigerant piping, connection
4
3		electric wire
		7: Drain pipe
		8: Ground wire
		Wire to ground outdoor unit to
		prevent electrical shocks.
		8

Whattodobeforeoperation

A

1 2

B

1

1

If your installation has a customized control system, ask your LG dealer for the operation that corresponds to your system.

A:Pair system or simultaneous operation system

B:Multi system

1:Unit with remote controller

2:Unit without remote controller (when used as simultaneous operation)

OperationIndicationLamps

	On/Off	: Lights up during the system operation.
	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	: To operate the unit when the remote control can't be used
		for any reason.

6 Ceiling Cassette-Type Air Conditioner

Product Introduction

WiredRemoteController

			1	INDICATION
				SCREEN
	1		2	SET TEMPERATURE Button
			3	WIRELESS REMOTE
				CONTROLLER RECEIVER
	2			• Some products don't receive the
				wireless signals.
	3
		9	4	VENTILATION Button
	4	16	5	OPERATION MODE SELECTION
		10
	5			Button
		11	6	SUBFUNCTION Button
	6	12
			7	FUNCTION SETTING Button
	7	13
			8	EXIT Button
	8	14
			9	ON/ OFF Button
		15
			10	ROOM TEMPERATURE Button
			11	FAN SPEED Button
			12	AIR FLOW Button
			13	RESERVATION/ TIME SETTING
				Button
			14	SETTING/ CANCEL Button
			15	UP, DOWN, LEFT, RIGHT Button
			16	RESET Button

ENGLISH

NOTE

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.

Owner's Manual 7

Product Introduction

WirelessRemoteController(Optional)

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.

1. ON/OFF BUTTON

Signal transmitter	Used to Turn off/on the unit.
	2. OPERATION MODE SELECTION BUTTON
	Used to select the operation mode.
	3. ROOM TEMPERATURE SETTING BUTTONS
	Used to select the room temperature.
	4. INDOOR FAN SPEED SELECTOR
	Used to select fan speed in four steps
	low, medium, high and CHAOS.

5

1

6

3

5.JET COOL BUTTON

Used to start or stop the speed cooling. (Speed cooling operates super high fan speed.)

6.CHAOS SWING BUTTON

Used to stop or start louver movement and set the desired up/down airflow direction.

	4		7. ON/OFF TIMER BUTTONS
	2	10	Used to set the time of starting and stopping operation.
		CANCEL	8. TIME SETTING BUTTONS
	7	9
			Used to adjust the time.
	ON	OFF SET
	11	12	9. TIMER SET/CANCEL BUTTON
	8
			Used to set and to cancel the Timer operation.
	13		10. SLEEP MODE AUTO BUTTON
	14		Used to set Sleep Mode Auto operation.
		15	11. AIR CIRCULATION BUTTON
			Used to circulate the room air without cooling or heating.
			12. ROOM TEMPERATURE CHECKING BUTTON
			Used to check the room temperature.
		Flip-up door	13. PLASMA
		(opened)	Used to start or stop the plasma-purification function.

14.RESET BUTTON

Initialize remote controller.

15.2nd F Button

Used prior to using modes printed in blue at the bottom of buttons.

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)

NOTE

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.

8 Ceiling Cassette-Type Air Conditioner

Operating Instructions

Operating instructions

CoolingMode - Standard Operation

1	Press	button to turn on the indoor.
2	Press	button to select Cooling operation mode.
3	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.

Setting Temp Range : 18˚C~30˚C.

CoolingMode - Power Cooling

It makes the room cool using pleasant and fresh air quickly

1 Press	button to turn on the indoor.
2 Press	button to select Cooling operation mode.
3 Press	button continuously until "Po" displayed.

What is power cooling?

•Desired temperature: 18°C

•Fan Speed: special high cool (Power air)

It quickly lowers the room temperature by operating.

HeatingMode

1 Press		button to turn on the indoor.

2 Press button to select Heating mode.

3 Adjust the desired temperature by pressing buttons.

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

Setting Temp Range : 16˚C~30˚C.

ENGLISH

Owner's Manual 9