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LG
LG Ceiling Duct-Type
Air Conditioner
OWNER'S MANUAL
Prior to installation, this airconditioning unit must be submitted for approval by the utility service which provides electricity (EN 61000-2 Norm, EN 61000-3 Norm).
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.
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Ceiling DUCT Type Air Conditioner Owner’s Manual
TABLE OF CONTENTS
Safety Precautions......................... |
3 |
Operating Instructions................... |
8 |
Care and maintenance................. |
25 |
Before you call for service... ....... |
27 |
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 DUCT 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.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
■ Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
■ 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.
Install the panel and the cover of control box securely.
•There is risk of fire or electric shock.
For electrical work, contact |
Always ground the product. |
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the dealer, seller, a qualified |
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electrician, or an Authorized |
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Service Center. |
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• Do not disassemble or repair |
• There is risk of fire or electric |
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the product. There is risk of fire |
shock. |
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or electric shock. |
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Always install a dedicated |
Use the correctly rated |
circuit and breaker. |
breaker or fuse. |
• Improper wiring or installation |
• There is risk of fire or electric |
may cause fire or electric shock |
shock. |
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Owner's Manual 3
Safety Precautions
Do not modify or extend the |
Do not install, remove, or |
power cable. |
re-install the unit by |
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yourself (customer). |
• There is risk of fire or electric |
• There is risk of fire, electric |
shock. |
shock, explosion, or injury. |
For installation, always contact the |
Do not install the product on |
dealer or an Authorized Service Center. |
a defective installation stand. |
• There is risk of fire, electric |
• It may cause injury, accident, or |
shock, explosion, or injury. |
damage to the product. |
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. 
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.
■ Operation
Take care to ensure that power |
Do not place anything on |
cable could not be pulled out |
the power cable. |
or damaged during operation. |
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• There is risk of fire or electric |
• There is risk of fire or electric |
shock. |
shock. |
Do not touch(operate) the product with wet hands.
•There is risk of fire or electric shock.
•There is risk of fire or electrical shock.
4 Ceiling DUCT Type Air Conditioner
Safety Precautions
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.
Gasolin
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
Do not open the inlet grill of the product during operation.
(Do not touch the electrostatic filter, if the unit is so equipped.)
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.
When the product is soaked (flooded or submerged), contact an Authorized Service Center.
• There is risk of physical injury, |
• There is risk of fire or electric |
electric shock, or product |
shock. |
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.
Be cautious that water could not enter the product.
•There is risk of fire, electric shock, or product damage.
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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.
Owner's Manual 5
Safety Precautions
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. 
hose to ensure |
Keep level even when |
away |
installing the product. |
may cause |
• To avoid vibration or water |
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leakage. |
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90˚ |
people to lift |
Do not install the product |
the product. |
where it will be exposed to |
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sea wind (salt spray) directly. |
injury. |
• It may cause corrosion on the product. |
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Corrosion, particularly on the condenser |
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and evaporator fins, could cause product |
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malfunction or inefficient 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.
6 Ceiling DUCT Type Air Conditioner
Do not block the inlet or |
Use a soft |
outlet of air flow. |
not use harsh |
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solvents, etc. |
• It may cause product failure. |
• There is risk of |
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shock, or |
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parts of the |
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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 |
Do not insert hands or other |
securely. Clean the filter |
objects through the air inlet |
every two weeks or more |
or outlet while the product |
often if necessary. |
is operated. |
• A dirty filter reduces the efficiency |
• There are sharp and moving |
of the air conditioner and could |
parts that could cause personal |
cause product malfunction or |
injury. |
damage. |
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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. 
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 the batteries. Do not dispose of 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. 
Owner's Manual 7
Operating Instructions
Operating Instructions
Name
and Function
of
Remote Controller
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OPERATION |
SET TEMP |
FAN SPEED |
SUB FUNCTION |
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Room Temp |
HI |
Heater |
Preheat |
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MED |
Defrost |
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LO |
Filter |
Out door |
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Time |
ZONE |
1 2 3 4 |
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Timer |
Operation unit |
Program set |
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On Off |
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Set no. Time |
01 03 05 07 |
09 11 13 |
15 17 19 |
21 |
23 |
3
Signal Receiver |
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5 |
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8 |
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9 |
Timer |
Cancel |
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Program |
Week |
Holiday |
11 |
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Plasma |
12 |
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SET/CLR |
13 |
Hour |
Min |
RESET |
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1
2
6
7
4
15
16
17
1.Operation display
Displays the operation conditions.
2.On/Off Button
Operation starts when this button is pressed, and stops when the button is pressed again.
3.Set Temperature Button
Used to set the temperature when the desired temperature is obtained.
4.FAN Operation Button
Used to circulate room air without cooling or heating.
5.Electric Heater Button(optional)
Used to set the Electric Heater.
6.Fan Speed Button
Used to set desired fan speed.
7.Operation Mode Selection Button
Used to select the operation mode.
•Auto Operation Mode.
•Cooling Operation Mode.
•Soft Dry Operation Mode.
•Heating Operation Mode.(except cooling model)
9.Timer Set Button
Used to set the timer when the desired time is obtained.
10.Week Button
Used to set a day of the week.
11.Program Button
Used to set the weekly timer.
12.Holiday Button
Used to set a holiday of the week.
13.Time Set Button
Used to set the time of the day and change the time in the weekly timer Function.
14.Set and Clear Button
Used to set and clear the weekly timer.
15.Room Temperature Checking Button
Used to check the room temperature.
16.Plasma Air Clean Button(optional)
17.Reset Button
Used to set the current time and clear the setting time.
8.Timer Cancel Button
Used to cancel the timer.
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.
8 Ceiling DUCT Type Air Conditioner
Operating Instructions
Optional Function
• WIRELESS REMOTE CONTROLLER
This air-conditioner is equipped with wired remote controller basically. But if you want to have the wireless remote controller, you pay for it.
Signal transmitter
Transmits the signals to the signal receptor.
1
A/CL
4
3
5
6
1.FAN Operation Button
Used to circulate room air without cooling or heating.
2.Cooling Operation Button
3.Soft Dry Operation Button
Used to dehumidify without overcooling.
4.Heating Operation Button
(Heat pump model only)
5.Timer Set Button
11Used to set the timer when the desired time is obtained.
10Then the wired remote controller is set up to 24 hours by an hour but the wireless remote controller is set up
9to 7 hours by an hour. Therefore, if you want to set over 7 hours, use the wired remote controller.
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6. |
Fan Speed Button |
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Used to set the desired fan speed. |
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7 |
7. |
On/Off Button |
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Operation starts when this button is pressed, and |
8stops when the button is pressed again.
8.Set Temperature Button
Used to set the temperature when the desired temperature is obtained
9.Auto Operation Button
10.Plasma Air Clean Button(Optional)
11.Electric Heater Button(Optional) Used to set the Electric Heater.
CAUTION : for handling the Remote Controller
•Aim at the signal receptor 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)
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Owner's Manual 9
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