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OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating your set and retain it for future reference.
TYPE : SINGLE PACKAGE
www.lg.com
P/NO : MFL67445904
Single Package Air Conditioner Owner’s Manual
TABLE OF CONTENTS
Safety Precautions.............. |
3 |
Prior to Operation................ |
6 |
Operating Instructions........ |
7 |
Care and Maintenance ...... |
25 |
Before You Call |
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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 Single Package 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. |
■ Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
WARNING
■ 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.
Use the specified wires to connect the unit.
•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 install a dedicated circuit and breaker.
Always ground the product.
•There is risk of fire or electric shock.
Use the correctly rated breaker or fuse.
• Improper wiring or installation may |
• There is risk of fire or electric |
cause fire or electric shock. |
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.
For installation, always |
Do not install the product on |
Be sure the installation area |
contact the dealer or an |
a defective installation stand. |
does not deteriorate with |
Authorized Service Center. |
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age. |
• There is risk of fire, electric shock, |
• It may cause injury, accident, or |
• If the base collapses, the air |
explosion, or injury. |
damage to the product. |
conditioner could fall with it, |
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causing property damage, product |
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failure, and personal injury. |
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Owner's Manual 3
Safety Precautions
■ 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.
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 plug or unplug the |
Do not touch(operate) the |
power supply plug during |
product with wet hands. |
operation. |
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• There is risk of fire or electric |
• There is risk of fire or electrical |
shock. |
shock. |
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 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 panel 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.
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 unit.
•This could result in personal injury and product damage.
4 Single Package Air Conditioner
Safety Precautions
CAUTION
■ Installation
Always check for gas (refrigerant) pressure after installation or repair of product.
•Low refrigerant levels may cause failure of product.
Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods.
• It may cause a problem for your neighbors.
Install the drain hose to ensure that water is drained away properly.
•A bad connection may cause water leakage.
Don't use people to lift and transport the product.
• Avoid personal injury.
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.
■ 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 anything on the product. (outdoor units)
•There is risk of personal injury and failure of product.
Always insert the filter securely. Clean the filter every four 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 |
Use a firm stool or ladder when cleaning or |
product. |
maintaining the product. |
• It is not sanitary and could cause serious health |
• Be careful and avoid personal injury. |
issues. |
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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 breaker.
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 Single Package Air Conditioner
Operating Instructions
Operating Instructions
Name and Function of Wired Remote Controller
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Please attach the inform label inside of the door. Please choose proper language depend on your country.
1OPERATION INDICATION SCREEN
2 SET TEMPERATURE BUTTON
3 FAN SPEED BUTTON
4 ON/OFF BUTTON
5OPRATION MODE SELECTION BUTTON
6WIRELESS REMOTE CONTROLLER RECEIVER
7 AIR FLOW BUTTON
8 SUBFUNCTION BUTTON
9 FUNCTION SETTING BUTTON
10VENTILATION BUTTON
11RESERVATION
12UP,DOWN,LEFT,RIGHT BUTTON
•To check the indoor temperature, press 
button.
13ROOM TEMPERATURE BUTTON
14SETTING/CANCEL BUTTON
15EXIT BUTTON
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Owner's Manual 7
Operating Instructions
Standard Operation - Standard Cooling
It cools the room by comfortable and clean wind.
1 Pressindoor.
button to turn on the 
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 (64˚F~86˚F)
Standard Operation - Dehumidification Mode
It removes humidity while air-cooling weakly.
1 Pressindoor.
button to turn on the
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Dehumidification mode. |
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The temperature setting can not be 
adjusted during operation this mode.
3 Press the 
button to select air flow High (It is possible to select only air flow high)
•In rainy season or high humidity climate, it is possible to operate simultaneously dehumidifier and cooling mode to remove humidity effectively.
8 Single Package Air Conditioner
Operating Instructions
Standard Operation - Fan Mode
It blows the air as it is in the indoor, not the cold wind.
1 Pressindoor.
button to turn on the
2 PressMode.
button to select Fan
3 Press the 
button to select air flow High (It is possible to select only 
air flow high) 
•Because it releases the wind that has no temperature difference from the room, it functions to circulate the inside air.
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Owner's Manual 9
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