кмллдавьбхд ENGLISH
OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating your set and retain it for future reference.
TYPE : CEILING SUSPENDED
P/NO : MFL62085008 |
www.lg.com |
Ceiling suspended Type Air Conditioner Owner's Manual
TABLE OF CONTENTS
Safety Precautions................. |
3 |
Prior to operation ................... |
8 |
Operating Instructions........... |
9 |
Additional features............... |
18 |
Maintenance and Service .... |
21 |
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 suspended 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 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.
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.
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. |
ENGLISH
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. 
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■ Operation |
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Do not let the air conditioner run for a |
Take care to ensure that power |
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long time when the humidity is very high |
cable could not be pulled out |
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and a door or a window is left open. |
or damaged during operation. |
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• Moisture may condense and |
• There is risk of fire or electric |
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wet or damage furniture. |
shock. |
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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.
4 Ceiling suspended 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. |
failure. |
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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.
ENGLISH
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. 
CAUTION
■ 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 |
Keep level even when |
that water is drained away |
installing the product. |
properly. |
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• A bad connection may cause |
• To avoid vibration or water |
water leakage. |
leakage. |
90˚
Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods.
Use two or more people to lift and transport the product.
Do not install the product where it will be exposed to sea wind (salt spray) directly.
• It may cause a problem for your • Avoid personal injury. |
• It may cause corrosion on the product. |
neighbors. |
Corrosion, particularly on the condenser |
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and evaporator fins, could cause product |
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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.
6 Ceiling suspended Type Air Conditioner
Safety Precautions
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.
Wax |
Thinner |
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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.
Do not drink the water drained from the product.
•It is not sanitary and could cause serious health issues.
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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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
ENGLISH
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
Prior to operation
Prior to operation
Preparing
for
operation
1.Contact an installation specialist for installation.
2.Connect the power cable between indoor unit and outdoor unit properly.
3.Use a dedicated circuit.
4.If the cord/plug is damaged, replace it with only an authorized replacement part.
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. 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.
Symbols
Used
in
this
Manual
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the air conditioner.
NOTICE |
This symbol indicates special notes. |
8 Ceiling suspended Type Air Conditioner
Operating Instructions
Operating Instructions
Remote
Controller
1. Remove the battery cover by pulling it according to the arrow direction.
2. Insert new batteries making sure that the (+) and (-) of battery are installed correctly.
3. Reattach the cover by sliding it back into position.
NOTICE
: Use 2 AAA(1.5volt) batteries. Do not use rechargeable batteries.
ENGLISH
Storage and Tips For Using the Remote Controller
•The remote controller may be stored by mounting it on a wall.
•To operate the room air conditioner, aim the Remote
Controller to the signal receptor.
Signal Receptor
Receives the signals from the remote controller.(Signal receiving sound: two short beeps or one long beep.)
Operation Indication Lamps
On/Off |
: Lights up during the system operation. |
Filter Sign |
: Lights up after 2400 hours from the time of first |
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operating unit. |
Timer |
: Lights up during Timer operation. |
Outdoor Unit |
: Light up during outdoor unit operation. |
Operation |
(Cooling model only) |
Defrost Mode |
: Lights up during Defrost Mode or |
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Hot Start operation.(Heat pump model only) |
Operation indication lamps
Owner's Manual 9
Operating Instructions
Remote
Control
Operation
The Remote Controller transmits the signals to the system.
Signal transmitter
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1 |
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10 |
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CANCEL |
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9 |
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ON |
OFF SET |
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12 |
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Flip-up door |
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(opened) |
Operation Mode 
Cooling Operation
Auto Operation
Healthy Dehumidification Operation
Heating Operation
• Cooling Model(
), Heat Pump Model(
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1 |
START/STOP BUTTON |
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Operation starts when this button is pressed |
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and stops when the button is pressed again. |
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2 |
OPERATION MODE SELECTION BUTTON |
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Used to select the operation mode. |
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3 |
ROOM TEMPERATURE |
(Heat Pump) (Cooling Only) |
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SETTING BUTTONS |
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Used to select the room temperature. |
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4 |
INDOOR FAN SPEED SELECTOR |
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Used to select fan speed in four steps |
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low, medium, high and CHAOS. |
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5 |
JET COOL BUTTON |
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Used to select jet cool mode. |
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6 |
CHAOS SWING BUTTON |
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Used to stop or start louver movement and set |
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the desired up/down airflow direction. |
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ON/OFF TIMER BUTTONS |
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Used to set the time of starting and stopping |
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operation. |
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8 |
TIME SETTING BUTTONS |
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Used to adjust the time. |
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9 |
TIMER SET/CANCEL BUTTON |
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Used to set the timer when the desired time is |
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obtained and to cancel the Timer operation. |
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10 |
SLEEP MODE AUTO BUTTON |
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Used to set Sleep Mode Auto operation. |
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11 |
AIR CIRCULATION BUTTON |
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Used to circulate the room air without cooling or |
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heating. |
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12 |
ROOM TEMPERATURE CHECKING BUTTON |
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Used to check the room temperature. |
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RESET BUTTON |
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Initialize remote controller. |
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14 |
2nd F Button |
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Used prior to using modes printed in blue at the bottom of buttons.
10 Ceiling suspended Type Air Conditioner
Operating Instructions
Cooling Operation
1 |
Press the Start/Stop button. |
The unit will respond with |
a beep.
2 |
Open the door on the remote control. To select Cooling |
Operation, press the Operation Mode Selection button. |
Each time the button is pressed, the operation mode is shifted in the direction of the arrow.
Cooling |
Auto |
Healthy |
Heating |
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Dehumidification |
(Heat pump model only) |
ENGLISH
3 |
Close the door on the remote control. Set the temperature |
lower than the room temperature. The temperature can be |
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set within a range of 18°C~30°C in 1°C increments. |
ON |
To raise the temperature |
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To lower the temperature |
4 |
Set the fan speed again with the door |
of the remote control still closed. You |
can select the fan speed in four stepslow, medium, high and CHAOS. Each time the button is pressed, the fan speed mode is shifted.
Natural wind by the CHAOS logic
For more fresh feeling than other fan speed, press the Indoor Fan Speed Selector and set to CHAOS mode. In this mode, the wind blows like natural breeze by automatically changing fan speed according to the CHAOS logic.
Owner's Manual 11
Operating Instructions
Auto Operation
1 |
Press the Start/Stop button. |
The unit will respond with |
a beep.
2 |
Open the door on the remote control. To select Auto |
Operation, press the Operation Mode Selection button. |
Each time the button is pressed, the operation mode is shifted in the direction of the arrow.
Cooling |
Auto |
Healthy |
Heating |
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Dehumidification |
(Heat pump model only) |
ON
3 |
The temperature and fan speed are automatically set by the |
electronic controls based on the actual room temperature. If |
you want to change the set temperature, press the Room Temperature Setting buttons. The cooler or warmer you feel, the more times (up to two times) you should press the button. The set temperature will be changed automatically.
To raise the temperature
To lower the temperature
During Auto Operation:(Cooling model)
You can switch the indoor fan speed.
If the system is not operating as desired, manually switch to another mode. The system will not automatically switch from the cooling mode to the heating mode, or from heating to cooling, then you must set the mode and the desired temperature again.
During Auto Operation:(Heat pump model)
You can switch the indoor fan speed.
The system will automatically switch from the cooling mode to the heating mode as the room temperature and set temperature.
12 Ceiling suspended Type Air Conditioner
Operating Instructions
Healthy Dehumidification Operation
1 |
Press the Start/Stop button. |
The unit will respond with |
a beep.
2 |
Open the door on the remote control. To select Healthy |
Dehumidification Operation, press the Operation Mode |
Selection button.
Each time the button is pressed, the operation mode is shifted in the direction of the arrow.
ENGLISH
Cooling |
Auto |
Healthy |
Heating |
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Dehumidification |
(Heat pump model only) |
ON
3 |
Set the fan speed again with the door |
of the remote control still closed. You |
can select the fan speed in four stepslow, medium, high, or CHAOS. Each time the button is pressed, the fan speed mode is shifted.
Natural wind by the CHAOS logic
For more fresh feeling than other fan speed, press the Indoor Fan Speed Selector and set to CHAOS mode. In this mode, the wind blows like natural breeze by automatically changing fan speed according to the CHAOS logic.
During Healthy Dehumidification Operation:
If you select the dehumidification mode on the operation selection button, the A/C starts to run the dehumidification function. It automatically sets the room temp. and airflow volume to the best condition for dehumidification, based on the sensed current room temp.
In this case, however, the setting temp. is not displayed in the remote control and you are not able to control the room temp. either.
During the healthy dehumidification function, the airflow volume is automatically set according to the optimization algorithm responding to the current room temp. status which makes the room condition healthy and comfortable even in the high humidity season.
Owner's Manual 13
Operating Instructions
Heating Operation(Heat pump model only)
1 |
Press the Start/Stop button. |
The unit will respond with |
a beep.
2 |
Open the door on the remote control. To select Heating |
Operation, press the Operation Mode Selection button. |
Each time the button is pressed, the operation mode is shifted in the direction of the arrow.
Cooling |
Auto |
Healthy |
Heating |
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Dehumidification |
(Heat pump model only) |
3 |
Close the door on the remote control. |
Set the temperature higher than the room temperature. |
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The temperature can be set within a range of 16°C~30°C in |
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1°C increments. |
ON |
To raise the temperature |
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To lower the temperature |
4 |
Set the fan speed again with the door of the |
remote control still closed. You can select |
the fan speed in four steps–low, medium, high and CHAOS. Each time the button is pressed, the fan speed mode is shifted.
Natural wind by the CHAOS logic
For more fresh feeling than other fan speed, press the Indoor Fan Speed Selector and set to CHAOS mode. In this mode, the wind blows like natural breeze by automatically changing fan speed according to the CHAOS logic.
14 Ceiling suspended Type Air Conditioner
Operating Instructions
Jet Cool Operation
1 |
Press the Start/Stop button. |
The unit will respond with |
a beep.
2 |
Press the Jet Cool button to operate |
the speed cooling mode and the unit |
will operate in super high fan speed on cooling mode for 30 minutes.
3 |
To cancel the Jet Cool mode, press the Jet Cool button or |
the fan speed button or the room temperature setting button |
again and the unit will operate in high fan speed on cooling mode.
or 
or
ENGLISH
NOTICE
During the JET COOL function at any moment, the A/C starts to blow the cool air at extremely high speed for 30 minutes setting the room temp. automatically to 18°C. It is especially used to cool the room temp. in the shortest time in a hot summer.
In heat pump mode or neuro fuzzy mode, however, the JET COOL function is not available.
In order to return to the normal cooling mode from the JET COOL mode, you just press either the operation mode selection button, airflow volume selection or temp. setting button or the JET COOL button again.
Owner's Manual 15
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