LG Electronics Air Conditioner HV2 User Manual

OWNER’S MANUAL  
AIR CONDITIONER  
Please read this manual carefully before operating  
your set and retain it for future reference.  
TYPE : WALL MOUNTED (LSN/LSU-HSV2/HV2)  
www.lg.com  
P/NO : MFL42262811  
 
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.  
Meanings of symbols used in this manual are as shown below.  
Be sure not to do.  
Be sure to follow the instruction.  
Always use a power plug and socket with  
a ground terminal.  
Do not use a defective or underrated  
circuit breaker. Use the correctly rated  
breaker and fuse.  
Do not use a multi consent. Always use  
this appliance on a dedicated circuit  
breaker.  
• There is a risk of electric shock.  
• There is risk of fire or electric shock .  
• Otherwise it can cause electric shock or fire.  
For electrical work, contact the dealer, seller,  
a qualified electrician, or an Authorized  
Service Center. Do not disassemble or repair  
the product by yourself.  
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.  
Install the panel and the cover of control  
box securely.  
• There is risk of fire or electric shock.  
• There is risk of fire or electric shock.  
• There is risk of fire or electric shock due to  
dust , water etc.  
Use the correctly rated breaker or fuse.  
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.  
For installation, removal or reinstall ,  
always contact the dealer or an  
Authorized Service Center.  
• There is risk of fire or electric shock.  
• There is risk of fire or electric shock.  
• There is risk of fire, electric shock, explosion,  
or injury.  
Do not install the product on a defective  
installation stand. Be sure that the  
installation area does not deteriorate with  
age.  
Never install the outdoor unit on a  
moving base or a place from where it  
can fall down.  
When the product is soaked (flooded or  
submerged) in water , contact an  
Authorized Service Center for repair  
before using it again.  
• It may cause product to fall.  
• The falling outdoor unit can cause damage or  
injury or even death of a person.  
• There is risk of fire or eletric shock.  
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.  
When installing the unit, use the  
installation kit provided with the product.  
Be sure to use only those parts which  
are listed in the svc parts list. Never  
attempt to modify the equipment.  
• An charged capacitor can cause electrical  
shock.  
• Otherwise the unit may fall and cause severe  
injury.  
• The use of inappropriate parts can cause an  
electrical shock, excessive heat generation or  
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.  
Safely dispose off the packing materials.  
Like screws, nails, batteries, broken  
things etc after installation or svc and  
then tear away and throw away the  
plastic packaging bags.  
Make sure to check that the power cable  
plug is not dirty, loose or broken and  
then only insert the plug completely.  
• Improper or loose connections can cause  
heat generation or fire.  
• Children may play with them and cause  
injury.  
• Dirty, loose or broken power plug can  
cause electric shock or fire.  
Be sure to check the refrigerant to be  
used. Please read the label on the product.  
Don't use a power cord, a plug or a loose  
socket which is damaged.  
Do not touch , operate, or repair the  
product with wet hands. Hold the plug by  
hand when taking out  
• Incorrect refrigerant used can prevent the  
normal operation of the unit.  
• Otherwise it may cause a fire or electrical  
shock.  
• There is risk of electric shock or fire.  
Do not place a heater or other heating  
appliances near the power cable.  
Do not allow water to run into electric  
parts. Install the unit away from water  
sources.  
Do not store or use or even allow  
flammable gas or combustibles near the  
product.  
• There is risk of fire and electric shock.  
• There is risk of fire, failure of the product, or  
electric shock.  
• There is risk of fire.  
Do not use the product in a tightly closed  
space for a long time. Perform ventilation  
regularly.  
Do not open the front grille of the product  
during operation. (Do not touch the  
electrostatic filter, if the unit is so equipped.)  
If strange sound, smell or smoke comes  
from product.Immediately turn the breaker  
off or disconnect the power supply cable.  
• Oxygen deficiency could occur and hence  
harm your health.  
• There is risk of physical injury, electric shock,  
or product failure.  
• There is risk of electric shock or fire.  
Ventilate the product room from time to  
time when operating it together with a  
stove, or heating element etc.  
Turn the main power off and unplug the  
unit when cleaning or repairing the  
product.  
When the product is not to be used for a  
long time, disconnect the power supply  
plug or turn off the breaker.  
• Oxygen deficiency can occur and hence harm  
your health.  
• There is risk of electric shock.  
• There is risk of product damage or failure, or  
unintended operation.  
Take care to ensure that nobody  
especially kids could step on or fall onto  
the outdoor unit.  
Take care to ensure that power cable  
could not be pulled out or damaged  
during operation.  
Do not place ANYTHING on the power  
cable.  
• This could result in personal injury and  
product damage.  
• There is risk of fire or electric shock.  
• There is risk of fire or electric shock.  
Do not plug or unplug the power supply plug to turn the unit  
ON/OFF .  
When flammable gas leaks, turn off the gas and open a window  
for ventilation befor turning on the product.  
• Do not use the telephone or turn switches on or off. There is risk of  
explosion or fire.  
• There is risk of fire or electric shock.  
Two or more people must lift and  
transport the product.  
Do not install the product where it will be  
exposed to sea wind (salt spray) directly.  
Install the drain hose to ensure that the  
condensed water is drained away properly.  
• Avoid personal injury.  
• It may cause corrosion on the product.  
• A bad connection may cause water leakage.  
Keep level even when installing the  
product.  
Do not install the product where the noise  
or hot air from the outdoor unit could  
damage or disturb the neighborhoods.  
Always check for gas (refrigerant)  
leakage after installation or repair of  
product.  
• To avoid vibration or noise.  
• It may cause a problem for your neighbors  
and hence dispute.  
• Low refrigerant levels may cause failure of  
product.  
4
Air Conditioner  
 
Safety Precautions  
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.  
Do not block the inlet or outlet of air flow.  
Use a soft cloth to clean. Do not use  
harsh detergents, solvents or splashing  
water etc .  
• 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  
product when removing the air filter.  
Do not step on or put anyting on the  
product. (outdoor units)  
Always insert the filter securely after  
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  
product.  
• A dirty filter reduces the efficiency.  
Do not insert hands or other objects  
through the air inlet or outlet while the  
product is operating.  
Be cautious when unpacking and  
installing the product.  
If the refrigerant gas leaks during the  
repair, do not touch the leakaing  
refrigerant gas.  
• There are sharp and moving parts that could  
cause personal injury.  
• Sharp edges could cause injury.  
• The refrigernat gas can cause frostbite (cold  
burn)  
Do not tilt the unit when removing or  
uninstalling it.  
Do not mix air or gas other than the  
specified refrigerant used in the system .  
If the refrigerant gas leaks during the  
installation, ventilate the area immediately.  
• The condensed water inside can spill .  
• If air enters the refrigerant system, an  
excessively high pressure results, causing  
equipment damage or injury.  
• 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.  
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.  
Do not recharge or disassemble the  
batteries. Do not dispose off batteries in  
a fire.  
• There is risk of fire or product failure.  
• 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.  
If you eat the liquid from the batteries,  
brush your teeth and see doctor. Do not  
use the remote if the batteries have  
leaked.  
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.  
• The chemicals in batteries could cause burns  
or other health hazards.  
• The chemicals in batteries could cause  
burns or other health hazards.  
• Moisture may condense and wet or damage  
furniture.  
Do not expose your skin or kids or  
plants to the cool or hot air draft.  
Do not drink the water drained from the  
product.  
Use a firm stool or ladder when cleaning,  
maintaining or repairing the product at an height.  
• This could harm to your health.  
• It is not sanitary and could cause serious  
health issues.  
• Be careful and avoid personal injury.  
Owner's Manual  
5
 
Electrical Safety  
Electrical Safety  
• This appliance must be properly grounded.  
To minimize the risk of electric shock, you must always plug into a grounded oulet.  
• Do not cut or remove the grounding prong from the power plug.  
• Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance  
unless the cover screw is metal and not insulated, and the wall receptacle is grounded through the  
house wiring.  
• If you have any doubt whether the air conditioner is properly grounded, have the wall receptacle and  
circuit checked by a qualified electrician.  
Temporary Use of an Adapter  
We strongly discourage the use of an adapter due to potential safety hazards. For temporary connections,  
use only a genuine adapter, available from most local hardware stores. Ensure that the large slot in the  
adapter is aligned with the large slot in the receptacle for a proper polarity connection.  
To disconnect the power cord from the adapter, use one hand on each to avoid damaging the ground  
terminal. Avoid frequently unplugging the power cord as this can lead to eventual ground terminal damage.  
• Never use the appliance with a broken adapter.  
Temporary Use of an Extension Cord  
We strongly discourage the use of an extension cord due to potential safety hazards.  
This appliance should be installed in accordance with national wiring regulations. This manual acts as a  
guide to explaining product features.  
Symbols used in this Manual  
This symbol alerts you to the risk of electric shock.  
This symbol alerts you to hazards that may cause harm to the  
air conditioner.  
This symbol indicates special notes.  
NOTE  
6
Air Conditioner  
 
Product Introduction  
Product Introduction  
Here is a brief introduction of the indoor and outdoor units.  
Indoor Units  
Air inlet  
Plasma filter  
Air filter  
ON/OFF button  
Front grille  
Operation lamp  
Triple filter  
Signal Receiver  
Horizontal vane  
Vertical louver  
Air outlet  
Allergy free filter  
Operation Indication Lamps  
• Cooling : 'Cooling' lamp lights up during Cooling Operation  
• Heating : 'Heating' lamp lights up during Heating Operation  
• Plasma : 'Plasma' lamp lights up during Plasma Purification Operation  
During Air Circulation Operation, 'Cooling' lamp lights up.  
While Plasma Purification operates with Air Circulation Operation, ‘Cooling’ lamp and ‘Plasma’ lamp  
lights up at the same time.  
Premium type doesn't have 'Plasma' lamp.  
Outdoor Unit  
Air inlet vents  
Connecting wire  
Piping  
Drain hose  
Air outlet vents  
Base plate  
Owner's Manual  
7
 
Operating Instructions  
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.  
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.  
4. Use 2 AAA(1.5 volt) 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.  
8
Air Conditioner  
 
Operating Instructions  
Wireless Remote Controller  
The controls will look like the following.  
Signal transmitter  
ON/OFF BUTTON  
Used to turn off/on the unit.  
OPERATION MODE SELECTION BUTTON  
Used to select the operation mode.  
ROOM TEMPERATURE SETTING BUTTONS  
Used to select the room temperature.  
INDOOR FAN SPEED SELECTION BUTTON  
Used to select fan speed in six steps low, medium-low,  
medium, medium-high, high and natural wind.  
HORIZONTAL VANE CONTROL BUTTON  
Used to set the desired vertical airflow direction.  
(Optional1)  
VERTICAL LOUVER CONTROL BUTTON(Optional)  
Used to set the desired horizontal airflow direction.  
AUTO CLEAN BUTTON  
Used to set auto clean.  
(Optional2)  
(Optional3)  
°C TO °F SWITCHING BUTTON  
Used to switch temperature reading from  
Centigrade to Fahrenheit.  
ROOM TEMPERATURE CHECKING BUTTON  
Used to check the room temperature.  
TIMER BUTTON(before adjusting)  
Used to set the current time and the time of starting / stopping.  
Operation Mode  
TIME ADJUSTING BUTTONS  
Cooling Operation  
Used to adjust the time.  
Auto Operation or Auto Changeover  
TIMER SET/CLEAR BUTTON(after adjusting)  
Used to set and to cancel the timer operation.  
Healthy Dehumidification Operation  
Heating Operation (Only heat pump)  
Air Circulation  
RESET BUTTON  
Used prior to resetting time.  
PLASMA BUTTON(Optional)  
Used to start or stop the plasma-purification.  
LED LUMINOSITY BUTTON(Optional)  
Used to adjust LED luminosity.  
Owner's Manual  
9
 
Operating Instructions  
The controls will look like the following.  
Signal transmitter  
- Optional1  
SLEEP MODE AUTO BUTTON  
Used to set sleep mode auto operation.  
- Optional2  
JET COOL BUTTON  
Used to start or stop the speed cooling.  
The Jet Cool operates fan in super high speed  
in cooling mode.  
- Optional3  
ENERGY SAVING COOLING BUTTON  
Used to save Energy  
(Optional1)  
(Optional2)  
(Optional3)  
Operation Mode  
Cooling Operation  
Auto Operation or Auto Changeover  
Healthy Dehumidification Operation  
Heating Operation (Only heat pump)  
Air Circulation  
10 Air Conditioner  
 
Operating Instructions  
Operation Mode  
ON/OFF  
Press the ON/OFF BUTTON to turn the unit on.  
1
The unit will respond with a beep.  
MODE  
Open the cover 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.  
2
Auto  
Healthy  
Heating  
Cooling  
Air Circulation  
Changeover Dehumidification (Heat pump model only)  
Auto Operation (Optional)  
Auto Changeover (Optional)  
TEMP  
For cooling or heating operation set the desired indoor temperature by pressing the  
ROOM TEMPERATURE SETTING BUTTONS.  
3
4
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).  
FAN SPEED  
Set the fan speed with the remote controller. You can select the fan speed in six steps : low,  
medium-low, medium, medium-high, high and natural wind by pressing the INDOOR FAN  
SPEED SELECTION BUTTON.  
Each time the button is pressed, the fan speed mode is shifted in the direction of the arrow.  
Step1(Low)  
Step2(Medium-low)  
Step3(Medium)  
Step4(Medium-high)  
Step5(High)  
Natural Wind  
Natural wind  
For 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 11  
 
Operating Instructions  
Auto Changeover Operation (Optional)  
This operation is basically heating or cooling function of the air  
MODE  
conditioner. But during this operation the controller changes the  
operation mode automatically to keep the temperature within  
2°C with respect to the setting temperature.  
Auto Operation(Optional)  
<For Cooling Model>  
TEMP  
The temperature and fan speed are automatically set by the electronic controls based on the  
actual room temperature.  
If you feel hot or cold, press TEMPERATURE SETTING buttons for more cooling or heating effect.  
You cannot switch the indoor fan speed. It has already been set by the Auto Operation Mode rule.  
Please select the code  
as per your requirement.  
Code  
2
1
Feel  
Cold  
Slightly cool  
Neutral  
0
-1  
-2  
Slightly warm  
Warm  
<For Heating Model>  
You can set desired temperature and indoor fan speed.  
Setting Temp. Range : 18~30°C(64°F~86°F).  
: You can not set the actual setting temperature and the fan speed in  
this operation mode ,But you can use the Auto swing in this  
operation. If the system is not operating as desired,switch manually  
to another mode  
NOTE  
Healthy Dehumidification Operation  
During Healthy Dehumidification Operation  
If you select the dehumidification mode on the OPERATION MODE  
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.  
During the healthy dehumidification function, the fan speed 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.  
12 Air Conditioner  
 
Operating Instructions  
Air Circulation Operation  
This operation circulates the air without cooling or heating. It can be  
activated by pressing the OPERATION MODE SELECTION  
MODE  
BUTTON. Once the air circulation is activated you can select the fan  
speed by pressing the INDOOR FAN SPEED SELECTION BUTTON.  
NOTE  
: During this opertion , 'Cooling' lamp lights up.  
Auto Clean Operation  
During Auto Clean Operation, moistures left in indoor units after cooling operation or healthy  
dehumidification operation can be removed.  
Select Auto Clean Operation by the function setting button(  
) .  
Now whenever the unit is turned off, the indoor fan is still running  
for about 30 minutes internally without cooling or dehumidification  
operation. This function dries up any remains of moisture & cleans  
the unit internally. If you push the Auto Clean button again, this  
function is cancelled.  
NOTE  
During Auto Clean fuction, only ON/OFF button, Plasma button, Auto Clean  
button is used. During this operation, 'Cooling' lamp lights up.  
PLASMA Purification Operation(Optional)  
Plasma filter is a technology developed by LG to get rid of microscopic  
contaminants in the intake air by generating a plasma of high charge electrons.  
This plasma kills and destroys the contaminants completely to provide clean  
and hygienic air.  
Plasma purification operation can be started by pressing the PLASMA BUTTON on the  
PLASMA  
remote controller.  
Repressing it will deactivate the operation.  
NOTE  
• This features can be used in any operation mode and fan speed by pressing the plasma button.  
• Separate plasma purification operation is possible in stop condition. It is cancelled by pressing plasma  
button or on/off button.  
Owner's Manual 13  
 
Operating Instructions  
Energy-Saving Cooling Mode (Optional)  
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 unit display Luminosity can be adjusted by using the remote controller.  
Open the cover of the remote controller and press the LED LUMINOSITY button.  
Display LED will be dark. Press the button again to set bright display.  
(The order of 100%  
50% LUMINOSITY is repeated whenever you press the button.)  
Setting the Current Time  
Press the TIMER BUTTON For 3 seconds.  
1
Press the TIMER SETTING BUTTONS until the desired time is set.  
- The order of a.m. and p.m. -> hour ->minute is repeated whenever you press  
the < > button.  
2
- By pressing the  
button, you can set the current time.  
Press the SET/CLEAR button.  
3
NOTE  
Check the indicator for a.m. and p.m.  
14 Air Conditioner  
 
Operating Instructions  
Timer Setting  
Button on the  
Remote Controller  
Description  
Indication on the LCD Display  
Press the Timer button once to set on the  
Reserved 'On'  
(Press the Timer button twice to set the  
Reserved 'Off')  
1
2
Press the Time Setting buttons until the  
desired time is set.  
- The order of a.m. and p.m. -> hour  
->minute is repeated whenever you press  
the < > button.  
- By pressing the  
the desired time.  
button, you can set  
Press the SET/CLEAR BUTTON  
(Press the SET/CLEAR BUTTON once more  
to cancel)  
3
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)  
Sleep Mode Operation  
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.  
In cooling mode or healthy dehumidification mode:  
The setting temperature will rise automatically two times by 1°C(2°F) over next consecutive 30 minutes  
[Maximum 2°C(4°F)] for a comfortable sleep. This will be the final setting temperature as long as sleep  
mode is functioning.  
Owner's Manual 15  
 
Operating Instructions  
Horizontal Vane Control  
The Horizontal Vane can be adjusted by using the remote controller.  
1. Press the ON/OFF BUTTON to start the unit.  
2. Press the vertical airflow direction button.  
Each time the button is pressed, the air-flow  
direction is changed in the direction of the arrow.  
STOP  
Auto Swing  
1 Step  
2 Step  
3 Step  
4 Step  
5 Step  
6 Step  
Press the Vertical Airflow Direction button once more during Auto Swing at the direction of airflow you want.  
Vertical Louver Control (Optional)  
The Vertical Louvers can be adjusted by using the remote controller.  
1. Press the ON/OFF BUTTON to start the unit.  
2. Press the horizontal airflow direction button. Each time the button is pressed, the  
airflow direction is changed in the direction of the arrow.  
STOP  
5 Step Left Auto Swing Right Auto Swing Full Auto Swing  
1 Step  
2 Step  
3 Step  
4 Step  
Press the Horizontal Airflow Direction button once more during Full Auto Swing at the direction of airflow you want.  
NOTE  
Manually moving the Horizontal Vane or Vertical Louvers by hand could damage the mechanism.When the  
unit is shut off, the the Horizontal Vane and Vertical Louvers will close the air outlet vent of the product.  
• Air Conditioner memorizes the last operated angle.  
So there is possibility of difference in the angle of Remote Controller and the unit after reoperation.  
In that case, angle can be adjusted by pressing the Vane Control Button on the Remote Controller.  
• When connected to the Multi Outdoor unit, the vertical louvers may automatically move for a specific  
temperature zone at the cooling mode.  
ex) 1 Step 2 Step, 5 Step 4 Step  
16 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 changeover  
operation.  
• In case of Cooling only model , Jet Cool cannot be activated during Heating.  
• In case of Inverter you can use jet heat function by pressing JET COOL BUTTON for heating operation.  
• Each time the JET COOL / MOISTURE COOLING BUTTON is pressed, the operation mode is shifted in  
the direction of the arrow.  
- Cooling  
Jet cool Moisture cooling operation cooling  
- Heating  
Jet heat heating  
Moisture Cooling Operation (Optional)  
The moisture cooling operation is to prevent the room from  
excessive dryness by logic control so that the room humidity  
is kept up.  
NOTE  
• Push the JET COOL/MOISTURE COOLING BUTTON twice to activate  
Moisture Cooling Operation.  
• Push the button again, then the mode goes to cooling mode.  
• Moisture Cooling may not be activated at high temperature.  
• Moisture cooling may not be activated during heating.  
• Fan Speed Selection button is not activated during Moisture Cooling operation.  
• It prevents excessive dryness, but doesn't moisturize.  
Owner's Manual 17  
 
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  
Heat pump Model  
Cooling Mode  
l
Room Temp. 24°C(75.2°F)  
Cooling  
21°C(69.8°F) Room Temp. < 24°C(75.2°F)  
Healthy Dehumidification  
High  
Room Temp. < 21°C(69.8°F)  
Heating  
Operating mode  
Cooling  
High  
Indoor FAN Speed  
High  
High  
Setting Temperature 22°C(71.6°F)  
22°C(71.6°F)  
23°C(73.4°F)  
24°C(75.2°F)  
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.  
NOTE  
If you do not have the remote controller around here, you can start to operate the forced operation.  
If you force to close the front panel, some parts may be damaged.  
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 6 times.  
To enable it, press the button again for 6 seconds. The unit will beep twice and the blue lamp will blink 4 times.  
ON/OFF  
button  
18 Air Conditioner  
 
Maintenance and Service  
Maintenance and Service  
Before performing any maintenance, turn off the main power to the system, disconnect the circuit breaker and  
unplug the power cord.  
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.  
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.  
Plasma Filter  
The plasma filters behind the air filter should be checked and cleaned once in every 3 months 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. If it is dirty wash it with water and dry well in shade an install back in place.  
Allergy Free Filter + Triple Filter  
Remove the Allergy Free Filter + Triple Filter behind the air filter and  
expose them in direct sunlight for 2 hours.  
And then insert these filters into original position.  
Removal of Filters  
Open the front panel as shown.  
Then pull the filter tab slightly forward to remove the air filter.  
After removing the air filter remove the plasma and Allergy Free Filter by slightly pulling downwards.  
Plasma Filter /  
Allergy Filter  
Triple Filter  
Don't touch this plasma filter within 10 seconds after opening the inlet grille, it may cause an electric shock.  
Owner's Manual 19  
 
Maintenance and Service  
Outdoor Unit  
The heat exchanger coils and panel vents of the outdoor unit should be checked regularly.  
If clogged with dirt or soot, the heat exchanger  
and panel vents may be professionally steam cleaned.  
NOTE  
Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs.  
Operation Tips!  
Do not overcool the room.  
Keep blinds or curtains  
closed.  
Keep the room temperature  
uniform.  
This is not good for the health and Do not let direct sunshine enter  
Adjust the vertical and horizontal  
airflow direction to ensure a  
uniform temperature in the room.  
wastes electricity.  
the room when the air conditioner  
is in operation.  
Make sure that the  
doors and windows  
are shut thight.  
Clean the air filter  
regularly.  
Ventilate the room  
occasionally.  
Use high fan speed  
for effective and fast  
cooling.  
Avoid opening doors and  
windows as much as  
possible to keep the cool  
air in the room.  
Blockages in the air filter  
reduce the airflow and  
lower cooling and  
dehumidifying effects.  
Clean at least once every  
two weeks.  
Since windows are kept  
closed, it is a good idea  
to open them and  
ventilate the room now  
and ten.  
The unit gives its rated  
cooling capacity when the  
fan speed is high.  
Self-Diagnosis Function  
This unit has an inbuilt error diagnosis capability. Unit LED will blink in case if thermistor fails.  
Please contact your serviceman/dealer in such a situation  
Error Display LED  
(once)  
2 sec  
2 sec  
2 sec  
20 Air Conditioner  
 
Maintenance and Service  
Troubleshooting Tips! Save time and money!  
The air conditioner may be operating abnormally when:  
Problem  
Possible Causes  
What To Do  
The air conditioner is  
unplugged.  
• Make sure the air conditioner plug is  
pushed completely into the outlet.  
The fuse is blown/circuit  
breaker is tripped.  
• Check the house fuse/circuit breaker box  
and replace the fuse or reset the breaker.  
Air  
Power failure.  
• If power failure occurs, turn the mode  
control to OFF.  
When power is restored, wait 3 minutes to  
restart the air conditioner to prevent  
tripping of the compressor overload.  
conditioner  
does not start  
High or low voltage.  
• If the voltage is unusually very high or low  
the circuit Breaker will trip.  
• Make sure there are no curtains, blinds, or  
furniture blocking the front of the air  
conditioner.  
Airflow is restricted.  
• Clean the filter at least every 2 weeks.  
See the Maintenance and Service section.  
The air filter is dirty.  
Air  
The room may have been hot. • When the air conditioner is first turned on,  
conditioner  
does not cool  
as it should  
you need to allow time for the room to cool  
down.  
Cold air is escaping.  
• Check for open furnace floor registers and  
cold air returns.  
Check the temperature settings. • Make sure they are correct.  
There might be any heating  
source in the room.  
• Check and remove such source or turn it  
off while using the air conditioner.  
Call the service immediately in the following situations  
1. Anything abnormal such as burning smell, loud noise etc. happen. Stop the unit and  
turn the breaker off. Never try to repair by yourself or restart the system in such cases.  
2. Main power cord is too hot or damaged.  
3. Error code is generated by self diagnosis.  
4. Water leaks from indoor unit even if the humidity is low.  
5. Any switch, breaker (safety, earth) or fuse fails to work properly  
User must carry routine checkup & cleaning to avoid unit’s poor performance.  
In case of special situation, the job must be carried out by service person only.  
Owner's Manual 21  
 
22 Air Conditioner  
 
LG Customer Information Center  
USA, press #2 for PTAC, TTW  
USA, press #3 for DFS, Multi V  
CANADA  
888-865-3026  
888-865-3026  
1-888-LG-Canada  
Register your product Online!  
LGEUS  
LG Electronics, Air conditioning Division  
1000 Sylvan Ave., Englewood Cliffs, NJ 07632  
LGECI  
LG Electronics Canada Inc.  
550 Matheson Blvd. East, Mississauga, Ontario, L4Z 4G3  
1. Please call the installing contractor of your product, as warranty service will be provided by them.  
2. If you have service issues that have not been addressed by the contractor, please call 1-888-865-3026.  
US  
CANADA Service call Number # : (888) LG Canada, (888) 542-2623  
 

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