ESPAÑOL FRANCAIS ENGLISH
OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating your set and retain it for future reference.
TYPE : WALL MOUNTED
http://www.lghvac.com
www.lg.com
P/NO : MFL68019801
Multi-Type Air Conditioner Ownerʼs Manual
TABLE OF CONTENTS
A. Safety Precautions .......................................... |
3 |
B. Product Introduction ....................................... |
6 |
Indoor Units........................................................ |
6 |
Outdoor Unit....................................................... |
6 |
C. Operating Instructions .................................... |
7 |
How to insert the Batteries................................. |
7 |
Wireless Remote Controller Maintenance.......... |
7 |
Operating Method .............................................. |
7 |
Wireless Remote Controller ............................... |
8 |
Operation Mode ................................................. |
9 |
Healthy Dehumidification Operation................. |
10 |
Auto Operation................................................. |
10 |
Air Circulation Operation.................................. |
10 |
Jet Cool/Heat Operation................................... |
11 |
Energy-Saving Cooling Mode .......................... |
11 |
Display Luminosity (Optional) .......................... |
11 |
Sleep Mode Operation (Optional) .................... |
11 |
Auto Clean(Optional)........................................ |
12 |
Setting the Current Time.................................. |
12 |
Timer Setting.................................................... |
12 |
To cancel the Timer Setting ............................. |
12 |
Forced operation.............................................. |
13 |
Auto Restart Function ...................................... |
13 |
E. Maintenance and Service.............................. |
14 |
Indoor Unit........................................................ |
14 |
How to replace picture & photograph............... |
15 |
Troubleshooting Tips! Save time and money!..16 |
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Call the service immediately in the following |
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situations.......................................................... |
16 |
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
νStaple 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.
2 Multi Air Conditioner
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be followed.
νIncorrect 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.
ν Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
ENGLISH
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 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.
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.
For installation, removal or reinstall , always contact the dealer or an Authorized Service Center.
•There is risk of fire, electric shock, explosion, or injury.
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.
Never install the outdoor unit on a |
When the product is soaked (flooded or |
moving base or a place from where it |
submerged) in water , contact an |
can fall down. |
Authorized Service Center for repair |
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before using it again. |
• The falling outdoor unit can cause damage or |
• There is risk of fire or eletric shock. |
injury or even death of a person. |
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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 |
Be sure to use only those parts which |
installation kit provided with the product. |
are listed in the svc parts list. Never |
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attempt to modify the equipment. |
• Otherwise the unit may fall and cause severe |
• The use of inappropriate parts can cause an |
injury. |
electrical shock, excessive heat generation or fire. |
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.
Owner's Manual 3
Safety Precautions
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.
Don't use a power cable, a plug or a loose socket which is damaged.
•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.
Make sure to check that the power cable 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 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.
Do not open the front grille of the product |
If strange sounds, smell or smoke comes |
during operation. (Do not touch the |
from product.Immediately turn the breaker |
electrostatic filter, if the unit is so equipped.) |
off or disconnect the power supply cable. |
• There is risk of physical injury, electric shock, |
• There is risk of electric shock or fire. |
or product failure. |
|
Turn the main power off when cleaning or repairing the product.
•There is risk of electric shock.
Take care to ensure that power cable could not be pulled out or damaged during operation.
•There is risk of fire or 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.
Do not place ANYTHING on the power cable.
•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.
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.
Do not place a heater or other heating appliances near the power cable.
•There is risk of fire and electric 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.
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.
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.
Do not plug or unplug the power supply plug to turn the unit ON/OFF .
•There is risk of fire or electric shock.
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.
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.
Install the drain hose to ensure that the condensed water is drained away properly.
•A bad connection may cause water leakage.
Always check for gas (refrigerant) leakage after installation or repair of product.
•Low refrigerant levels may cause failure of product.
4 Multi Air Conditioner
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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 |
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harsh detergents, solvents or splashing |
is a consumer air conditioner, not a precision |
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water etc . |
refrigeration system. |
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• There is risk of damage or loss of property. |
• It may cause product failure. |
• There is risk of fire, electric shock, or damage |
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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 |
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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. |
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product. |
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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. |
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• There are sharp and moving parts that could |
• Sharp edges could cause injury. |
cause personal injury. |
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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 |
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excessively high pressure results, causing |
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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 hazards.
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.
Do not expose your skin or kids or |
Do not drink the water drained from the |
Use a firm stool or ladder when cleaning, |
plants to the cool or hot air draft. |
product. |
maintaining or repairing the product at |
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an height. |
• This could harm to your health. |
• It is not sanitary and could cause serious |
• Be careful and avoid personal injury. |
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health issues. |
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ENGLISH
Owner's Manual 5
Product Introduction
Product Introduction
Indoor Units
Air Filter
Signal receiver
Front Panel |
ON/OFF button |
Air Discharge |
Outdoor Unit
Air intake vents 
Control cover
Connecting wire
Connection pipe
Drain hose
Air outlet vents 
Base plate
η The figure can be changed according to model.
6 Multi Air Conditioner
Operating Instructions
How to insert the Batteries
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.(Battery Size = AAA (1.5 volt))
3.Reattach the cover by sliding it back into position.
NOTE
1.Always use/replace both batteries of same type.
2.If the system is not to be used for a long time, remove the batteries to save their working life.
3.If the display screen of remote controller starts, fading replace both of the batteries.
Wireless Remote Controller Maintenance
1.Choose a suitable place where its safe & easy to reach.
2.Fix the holder to wall etc with the supplied
screws firmly.
3. Slide the remote controller inside the holder.
NOTE
1.Remote controller should never be exposed to direct sunlight.
2.Signal transmitter & receiver should always be clean for proper communication. Use a soft cloth to clean them.
3.In case some other appliances also get operated with remote control, change their position or consult your serviceman.
Operating Method
1.The signal receiver is inside the unit.
2.Aim the remote controller towards the unit to operate it. There should not be any blockage in between.
Operating Instructions
ENGLISH
Owner's Manual 7
Operating Instructions
Wireless Remote Controller
Display
screen
Control
panel
Operation Mode 
Cooling Mode
Auto Operation
Dehumidification mode
Heating Mode
NOTE
Control |
Display |
Description |
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panel |
screen |
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/ |
E |
Air circulation button*: Used to |
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circulate the room air without cooling |
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or heating. |
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l |
= |
Sleep mode auto button*: Sets the |
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sleep mode auto operation. |
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e |
y |
Temperature adjustment buttons: |
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Adjusts the room temperature when |
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cooling and heating. |
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d |
- |
On/Off button: Turns the power |
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on/off. |
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g |
7 v |
Indoor fan speed button: Adjusts |
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the fan speed. |
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Operation mode selection button*: |
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f |
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Selects the operation mode. |
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A C |
Cooling operation (A) / Auto |
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D B |
operation or auto changeover (C) / |
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Dehumidifying operation (D) / Heating |
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operation (B) |
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h |
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Jet cooling/heating button*: Warms |
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N |
up or cools down the indoor |
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temperature within a short period of |
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time. |
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N |
H |
Air flow direction button: Adjusts |
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the air flow direction. |
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k |
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Temperature display button: Displays |
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S |
the room temperature. Also changes |
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unit from °C to °F if pressed for 5 |
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seconds. |
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m n |
z |
Timer button: Sets the current time |
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and the start / end time. |
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c |
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Navigation and functions button*: |
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Adjusts the time and sets the special |
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functions. |
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b |
J G |
J: Auto clean / G: Operates energy |
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\ |
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saving cooling / LIGHT : Adjusts the |
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brightness of the indoor unit display |
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p |
- |
Set/clear button: Sets or cancels |
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functions. |
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r |
- |
Reset button: Resets the air |
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conditioner settings. |
ηSome functions may not be supported, depending on the model.
8 Multi Air Conditioner
Operation Mode
1Press the ON/OFF BUTTON to turn the unit on.
The unit will respond with a beep.
Operating Instructions
ENGLISH
2 Open the door of the remote controller and press the operation mode button. Each time the button is pressed, the operation mode is shifted in the direction of the arrow.
Cooling |
Auto Operation |
Dehumidifying |
Heating |
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Operation |
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3temperature by pressing the ROOM TEMPERATURE SETTING
BUTTONS.
For cooling the temperature can be set within
18°C~30°C(64°F~86°F) and for heating the temperature range is
16°C~30°C(60°F~86°F).For cooling or heating operation set the desired indoor
To raise the temperature
To lower the temperature
4 Set the fan speed with the remote controller. You can select the fan speed by pressing the INDOOR FAN SPEED SELECTOR BUTTON.
Each time the button is pressed, the fan speed mode is shifted.
Natural Wind |
Step1(Low) |
Step2(Medium) |
Step3(High) |
Natural wind
οFor fresher feeling, press the INDOOR FAN SPEED SELECTION BUTTON and set to Natural wind mode. In this mode, the wind blows like a natural breeze by automatically changing fan speed.
Owner's Manual 9
Operating Instructions
Healthy Dehumidification Operation
During Healthy Dehumidification Operation
οIf you select the dehumidification mode on the OPERATION MODE SELECTION BUTTON, the product starts to run the dehumidification function. It automatically sets the room temperature and airflow volume to the best condition for dehumidification, based on the sensed current room temperature.
In this case, however, the setting temperature is not displayed on the remote controller and you are not able to control the room temperature either.
οDuring the healthy dehumidification function, the airflow volume is automatically set according to the optimization algorithm responding to the current room temperature status, so that the room condition is kept healthy and comfortable even in the very humid season.
Auto Operation
In this operation mode, the system is automatically operated by the electronic controls.
- You can set the desired temperature between 18°C(64°F) and 30°C(86°F) for Auto Operation mode.
NOTE
This function properly operates when you use the remote controller matching each model.
Air Circulation Operation
This operation circulates the air without cooling or heating. It can be activated by pressing the Fan BUTTON.
Once the air circulation is activated you can select the air speed by pressing the INDOOR FAN SPEED SELECTOR BUTTON.
10 Multi Air Conditioner
Operating Instructions
Jet Cool/Heat Operation
Jet cool function can be used to cool the room quickly in hot summer. When this function is turned on, the air conditioner runs in cooling operation mode with super high fan speed and 18°C(64°F) setting temperature for 30 minutes for fast and effective cooling.
Similarly, jet heat function (available only in some models) warms up the room quickly by operating at super high fan speed and 30°C(86°F) setting temperature for 30 minutes.
You can activate this operation by pressing the JET COOL BUTTON.
To change from jet cool mode to high fan speed cooling mode, press the JET COOL
BUTTON or INIDOOR FAN SPEED SELECTOR BUTTON or the ROOM TERPERATURE
SETTING BUTTON again.
NOTE
• Jet Cool/Heat operation cannot be activated during Air Circulation operation and auto operation.
Energy-Saving Cooling Mode
Energy-saving cooling mode can save energy in cooling operation, because it can operate efficiently by setting body-adaptation time according to the change of time and temperature and adjusting desired temperature automatically.
1. Press the ON/OFF BUTTON to start the unit.
2. Open the cover of the remote controller. Select cooling operation.
3. Press the ENERGY-SAVING COOLING MODE BUTTON.
4. To cancel the energy-saving cooling mode, press the ENERGY-SAVING
COOLING MODE BUTTON again and unit will operate in previous mode(Cooling mode).
Display Luminosity (Optional)
The Display Luminosity can be adjusted by using the remote control.
Press the LCD/LED LUMINOSITY button.
Display will be dark. Press the button again to set bright display.
Sleep Mode Operation (Optional)
Press the SLEEP MODE AUTO BUTTON to set the time when you want the unit to stop automatically. The timer is programmed in one-hour increments by pressing the
SLEEP MODE AUTO BUTTON 1 to 7 times. The sleep mode is available for 1 to 7 hours.
NOTE
•The sleep mode will operate indoor fan at super low speed in cooling mode and at low speed in heating mode for pleasant sleep.
ENGLISH
Owner's Manual 11
Operating Instructions
Auto Clean(Optional)
οDuring auto clean function, moistures left in indoor units after cooling operation or healthy dehumidification operation can be removed.
This function operate when the unit is turned off.
• Press the Auto Clean button. c
• 
is displayed on the display screen.
If the Auto Clean function is reserved, whenever the unit is turned off, the indoor fan is still running for about 30 minutes internally without cooling or dehumidification operation. Also the louver is closed.
This dries up any remains of moisture & cleans the unit internally.
Setting the Current Time
1.Press the Set/Clear button for 3seconds. p
- The AM/PM icon flickers at the bottom of the display screen.
2.Press Time Setting buttons until the desired time is set. oq
3.Press the Set/Clear button. p
NOTE Check the indicator for A.M. and P.M.
Timer Setting
1.Press ON or OFF button. mn
2.Press Time Setting buttons until the desired time is set. oq
3.Press the Set/Clear button. p
To cancel the Timer Setting
•If you wish to cancel all timer setting, press the SET/CLEAR button.
•In order to cancel the timer settings individually, press the Timer button to select Reserved 'On' or Reserved 'Off'. And then press the Set/Clear button aiming the remote controller at the signal receiver.
(the timer lamp on the display will go off)
12 Multi Air Conditioner
Operating Instructions
Forced operation
Forced operation is used when the remote controller can't be used. The operation will be started if the ON/OFF button is pressed. If you want to stop the operation, re-press the button.
ON/OFF button
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Heat pump Model |
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Room Temp. ≥ 24°C(75.2°F) |
21°C(69.8°F) ≤ RoomTemp. < 24°C(75.2°F) |
Room Temp. < 21°C(69.8°F) |
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Operating mode |
Cooling |
Healthy Dehumidification |
Heating |
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Indoor FAN Speed |
High |
High |
High |
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Setting Temperature |
22°C(71.6°F) |
23°C(73.4°F) |
24°C(75.2°F) |
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Test operation
During the TEST OPERATION, the unit operates in cooling mode at high speed fan, regardless of room temperature and resets in 18 minutes. During test operation, if remote controller signal is received, the unit operates as remote controller sets. If you want to use this operation, Press and hold the ON/OFF button for 3-5 seconds, then the buzzer sound 1
'beep'. If you want to stop the operation, re-press the button.
Auto Restart Function
This function is useful in the situation of power failure.
When power regains after a failure this feature restore the previous operating condition and the air conditioner will run in the same settings.
NOTE
This feature is enabled by factory default setting, but you can disable it by pressing the ON/OFF button for 6 seconds. The unit will beep twice and the lamp will blink 8 times.
To enable it, press the button again for 6 seconds. The unit will beep twice and the blue lamp will blink 4 times.
ENGLISH
Owner's Manual 13
Maintenance and Service
Maintenance and Service
Before performing any maintenance, turn off the main power to the system, disconnect the circuit breaker.
Indoor Unit
Clean the unit with a soft dry cloth. Do not use bleach or abrasives.
Never use any of these
•Water hotter than 40°C(104°F). It may cause deformation and discoloration.
•Volatile substances. They may damage the surface of the air conditioner.
oline
Air Filters
The air filters behind the front panel / grill should be checked and cleaned once in every 2 weeks or more often if necessary. To remove the filters see the self explanatory diagrams for each model type. Clean the filters with a vacuum cleaner or warm soapy water. If dirt is not easily removed, wash with a solution of detergent in luke warm water. Dry well in shade after washing and reinstall the filters back in place.
Removal of Filters
Pull out the upper section of front panel and lift it up. Take out a filter with front panel held.
Dry it completely in the shade after cleaning.
Then set a filter orderly. Put the hook of front panel onto the hanger, in order to close the front panel.
Front panel
Air filter
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Front panel hook |
Air filter |
Hook-hanger |
14 Multi Air Conditioner
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Maintenance and Service |
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How to replace picture & photograph |
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1. Turn off power and then open |
2. Pull out the both links of lower |
3. Push and close the top part of |
the upper part of front panel. |
part of front panel, as |
the front panel and then pull |
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described in the below picture. |
the bottom part of the panel |
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forward until it is secured. |
ENGLISH
4. Take out picture.
7. Cover mat and press down with hand(s) until contacting closely.
5. Turn upside-down of the |
6. Place the picture/photograph |
picture and turn over mat, then |
between the exited picture and |
take off a protective tape |
mat. (Recommended size of a |
attached at the mat. |
photo/picture: 450mm x |
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450mm) |
Protective tape |
Mat |
Mat
8. Slide the photo graph/drawing requested under both hanger parts as following, and fix them. Press the front panel lightly to close.
450mm
450mm
9. Push both links of lower part of panel inside and fix it. Then turn on.
In case a mat is not used, recommended size of a photo/picture:
522mm (20-11/20 inch) X 522mm(20-11/20 X 20-11/20)
When powering on after replacing filter and picture, the front panel doesn't intervene.
522mm
522mm
Owner's Manual 15
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