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Safety Precautions  

Owner's Manual  3

ENGLISH

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

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

WARNING

Always ground the product.

• There is a risk of electric shock.

Do not use a defective or underrated
circuit breaker. Use the correctly rated
breaker and fuse. 

• 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.

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.

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.

Install the panel and the cover of control
box securely. 

• There is risk of fire or electric shock due to

dust , water etc.

Use the correctly rated breaker or fuse. 

• 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.

For installation, removal or reinstall ,
always contact the dealer or an
Authorized Service Center.

• 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. 

• It may cause product to fall. 

Never install the outdoor unit  on a
moving base  or a place from  where  it
can fall down.

• The falling outdoor unit can cause damage or

injury or even death of a person.

When the product is soaked (flooded or
submerged) in water , contact an
Authorized Service Center for repair
before using it again.

• There is risk of fire or eletric shock.

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.

Don't use a power cord, a plug  or a loose
socket which is damaged.

• Otherwise it  may cause a fire or electrical

shock.

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 place a heater or other heating
appliances near the power cable.

• There is risk of fire and electric 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.

Do not store or use or even allow
flammable gas or combustibles near the
product. 

• There is risk of fire.

Summary of Contents for Ceiling Cassette-Type Air Conditioner

Page 1: ...it us at http www lgservice com IMPORTANT Please read this owner s manual carefully and thoroughly before installing and operating your room air conditioner Please retain this owner s manual for future reference after reading it thoroughly ENGLISH FRANÇAIS ESPAÑOL ...

Page 2: ... 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 ...

Page 3: ...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 For installation removal or reinstall always contact the dealer or an Authorized Service Center There is risk of fire electric shock explosion or injury Do not install the product on a defective installation stand Be sure that the ins...

Page 4: ...could step on or fall onto the outdoor unit This could result in personal injury and product damage 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 place ANYTHING on the power cable There is risk of fire or electric shock Do not plug or unplug the power supply plug to turn the unit ON OFF There is risk of fire ...

Page 5: ... used in the system If air enters the refrigerant system an excessively high pressure results causing equipment damage or injury 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 Replac...

Page 6: ...nd outdoor units Please see the information specific to your indoor unit type The figure can be changed according to model Ceiling Cassette Type Cabinet Air Discharge Air Inlet Signal receiver Front Panel Air outlet vents Base plate Connection pipe Drain hose Connecting wire Control cover Air intake vents Outdoor Unit ...

Page 7: ... up after 2400 hours from the time of first operating unit Timer Lights up during Timer operation Defrost Mode Lights up during Defrost Mode or Hot Start operation Heat pump model only On Off Forced To operate the unit when the remote control can t be used for any reason Hot start operation Stops the indoor fan in heating operation for minutes to prevent cold air from blowing out from unit In defr...

Page 8: ...nding upon model type NOTE OPERATION INDICATION SCREEN SET TEMPERATURE Button WIRELESS REMOTE CONTROLLER RECEIVER Some products don t receive the wireless signals VENTILATION Button OPERATION MODE SELECTION Button SUBFUNCTION Button FUNCTION SETTING Button EXIT Button ON OFF Button ROOM TEMPERATURE Button FAN SPEED Button AIR FLOW Button RESERVATION TIME SETTING Button SETTING CANCEL Button UP DOW...

Page 9: ...r stop Smart Clean CLEAR ALL Button Used to clear all timer ROOM TEMPERATURE SETTING Button Used to select the room temperature ON OFF Button Used to turn on off the unit INDOOR FAN SPEED SELECTION Button Used to select fan speed in four steps low medium high and chaos UP DOWN AIRFLOW Button Used to stop or start louver movement and set the desired up down airflow direction LEFT RIGHT AIRFLOW Butt...

Page 10: ... out instead of cooling wind 3 Operating instructions Setting Temp Range 18 C 30 C 1 Wired Remote Controller 2 Wireless Remote Controller Press the ON OFF button The unit will respond with beep sound 1 Press MODE button to select Cooling Mode 2 To lower the temperature To raise the temperature Set the desired temperature by pressing TEMP button Press ROOM TEMPERATURE CHECKING button to check the r...

Page 11: ...button The unit will respond with beep sound 1 Press MODE button to select Cooling Mode 2 Press the JET COOL button The unit will operate in super high fan speed in cooling mode Wall mounted models operate power cooling mode for 30 minutes 3 To cancel the Power cooling Mode press the Jet Cool button or the fan button or the room temperature setting button again and the unit will operate in high fa...

Page 12: ...sired temperature by pressing TEMP button Press ROOM TEMPERATURE CHECKING button to check the room temperature When setting the desired temperature is lower than room temperature heating wind isn t blow out 3 Set the fan speed again You can select the fan speed in four steps low medium high or chaos Each time the button is pressed the fan speed mode is shifted 4 Press the ON OFF button The unit wi...

Page 13: ...n on the indoor 1 Press button to select Dehumidification mode The temperature setting can not be adjusted during operation this mode 2 Press the button to select airflow rate SLO LO MED HI NONE The lists depends on products function NONE Power level of Fan Speed 3 1 Wired Remote Controller ...

Page 14: ...ts to run the dehumidification function automatically setting the room temp and air volume to the best condition for dehumidification based on the sensed room temp In this case the setting temp is not displayed in the Remote Controller and you are not able to control the room temp either During the healthy dehumidification function the air volume is automatically set according to the algorithm res...

Page 15: ...erature Setting Temp Range in Auto Changeover Mode 18 30 C 64 86 F 3 You can select the fan speed in four stepss low medium high and chaos Each time the button is pressed the fan speed mode is shifted 4 To lower the temperature To raise the temperature During Auto changeover Mode The air conditioner changes the operation mode automatically to keep indoor temperature When room temperature vary over...

Page 16: ...e the button is pressed the fan speed mode is shifted 3 Press the ON OFF button The unit will respond with beep sound 1 Press MODE button to select Fan Mode 2 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 ...

Page 17: ... Press the ON OFF button to start the unit 2 Press the LEFT RIGHT AIRFLOW button and the louvers will swing left and right Press the Horizontal Airflow Direction Control Button again to set the horizontal louver at the desired airflow direction Some functions may not be operated and displayed depending on the product type Symbol Description Swril vane paired opend cross Up Down Vane move from up t...

Page 18: ...ed temperature can be adjusted at 0 5 C Cooling operation The cooling mode doesn t work if desired temperature is higher than room temperature Please lower the desired temperature Heating operation The heating mode doesn t work if desired temperature is higher than room temperature Please lower the desired temperature 1 Whenever press button the room temperature will be displayed within 5 seconds ...

Page 19: ...hat user want to set Cooling Mode The cooling mode doesn t work if desired temperature is higher than room temperature Please lower the desired temperature Heating Mode The heating mode doesn t work if desired temperature is lower than room temperature Please increase the desired temperature Whenever press button the room temperature will be displayed within 5 seconds After 5 seconds it turns to d...

Page 20: ...ON OFF button The unit will respond with beep sound 1 Press the PLASMA button Plasma Purification will start when the button is pressed and stop when the button is pressed again 2 PLASMA Purification only If you press the PLASMA button Plasma Purification operates Plasma filter is a technology developed by LG to get rid of microscopic contaminants in the intake air generating a plasma of high char...

Page 21: ... except for Room temperature access However it is possible to control normally by wireless remote controller To release this setting keep pressing button until icon flash and then enter button Function Setting Mode Change Temp Press button 1 Repeat pressing button until icon flash 2 Press button to change converting temp value 1 7 3 Press button to complete and active the setting process 4 Press b...

Page 22: ...ill automatically exit after 25 seconds without any input 5 Repeat pressing button to select Function code 12 Ex Fahrengeit Setting 2 Select Temperature unit mode by pressing button 00 Celsius 01 Fahrenheit 3 Press button to save or release 4 This function is used for switching the display between Celsius and Fahrenheit Optimized only for U S A Whenever press button in Fahrenheit mode the temperat...

Page 23: ...e do clean the filter whenever cleaning time is expired Function setting Filter Sign Clear Press button Repeat pressing button until the icon flash 1 When the flashing press the button to clear this display 2 2 Wireless Remote Controller Press the C F SWITCH button to change from Celsius to Fahrenheit or from Fahrenheit to Celsius Whenever press TEMPERATURE SETTING button in Fahrenheit mode the te...

Page 24: ...n 3 Press button to select Vane number Vane angle Vane angle 6 Step P1 P6 Sd Sd Standard angle 4 Press button to adjust the angle value 5 Press button to complete and active the setting process Airflow direction function will be released whenever setting vane angle 6 Press button to exit or system will automatically release without any input after 25 seconds 7 This function is to adjust angle at w...

Page 25: ...ton 4 Press button to move to Hour setting mode the Hour segment will flash 5 Setting Hour value by pressing button 6 Press button to move to Minute setting mode the Minute segment will flash 7 Setting Minute value by pressing button 8 Press button to finish 9 In the process press button to release and exit from setting mode In case of exit with incomplete information it will return to the previou...

Page 26: ...ere is not any reservation setup on system it is possible to make a SIMPLE reservation on indoor unit If the indoor is ON we can make the reservation for turning OFF In reserve if the indoor is OFF we can set the timer for turning ON The reservation time is from 1 to 7 hours Operating Instructions 26 Air Conditioner 2 Wireless Remote Controller 1 Press the TIMER button for 3 seconds 2 Press TIME S...

Page 27: ...ressing button to enter the weekly reservation setting mode segment flashing 2 Set the ON OFF reservation for day in week Press to adjust timing and Left Right to shift to next setting mode A day is considered as non reservation if there is not any time reservation within 3 Press button to finish setting 4 The weekly reservation is active after setting current time ...

Page 28: ...time The SLEEP reservation time is from 1 to 7 hours 3 Press button to finish setting Whenever reservation is done icon will flash When this setting is released icon will disappear 4 Adjust the reservation time after finish reservation setting will release the previous one 5 This function is able to turn off Air conditioner when sleeping or after some hours Please set a suitable time for sleep res...

Page 29: ...flashing 2 Press button to adjust AM PM setting 3 Press button to Hour setting mode When the Hour icon flash please setting time The setting range is within 1 12 4 Press button to shift to Minute setting mode When the Minute icon flash please setting minute the setting range is within 00 59 5 Press button to finish setting 6 This function is able to turn air conditioner ON after a setting time ...

Page 30: ...g 2 Press button to adjust AM PM setting 3 Press button to shift to Hour setting mode When the Hour icon flash please setting time The setting range is within 1 12 4 Press button to shift to Minute setting mode When the Minute icon flash please setting minute the setting range is within 00 59 5 Press button to finish setting 6 This function is able to turn air conditioner OFF after a setting time ...

Page 31: ... holiday position 3 Press button to set or release a selected day as holiday or not the holiday is indicated with a underline 4 If there is any holiday from Monday to Sunday segment on LCD will be displayed 5 Press the button to exit or if there is not any input system will release any setting after 10 seconds 6 It is possible to set the air conditioner OFF in every holiday ex 9 00 10 00 13 00 7 T...

Page 32: ...AR button aiming the remote controller at the signal receptor The timer lamp on the air conditioner and the display will go off Timer Sleep Timer On Timer Off 1 Press the TIMER button to turn timer on or off 2 Press TIME SETTING buttons until the desired time is set 3 Press the SET CLEAR button Select one of the following 3 types of operation NOTE To cancel the Timer Setting Wireless Remote Contro...

Page 33: ...splayed 2 When turn off ventilator the Ventilation icon disappears 3 Please refer the Ventilation instruction in function setting menu in order to connect a ventilator to air conditioner In case of not connected ventilator this ventilation function can not be operated 4 Operating ventilation Stop ventilation If there is a linkage between ventilator and air conditioner it is able to control this ve...

Page 34: ...erating mode Cooling Healthy Dehumidification Heating Indoor FAN Speed High High High Setting Temperature 22 C 72 F 23 C 74 F 24 C 76 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 wa...

Page 35: ...ation and or discoloration Volatile substances Could damage the surfaces of the air conditioner Benzene SCOURING CLBARGER SINNER 1 Remove the Air filters Take hold of the tab and pull slightly forward to remove the filter CAUTION When the air filter is to be removed do not touch the metal parts of the indoor unit It may cause an injury 2 Clean dirt from the air filter using a vacuum cleaner or was...

Page 36: ...the PLASMA filter in the shade for a day Especially the humidity must be removed perfectly on this parts 4 Note the cuts of electric discharge lines 5 Re install the PLASMA filter to the original position Replacement Recomended use period About 2 years 1 Open front panel and remove air filter 2 Remove air purifying filter 3 Insert new air purifying filter 4 Reinsert air filter and close front pane...

Page 37: ...to open them and ventilate the room now and then When air conditioner is not going to be used for a long time 1 Operate the air conditioner at the following settings for 2 to 3 hours Type of operation Fan operation mode Refer to page 11 This will dry out the internal mechanisms 2 Turn off the breaker CAUTION Turn off the breaker when the air conditioner is not going to be used for a long time Dirt...

Page 38: ...aint or no display at all Have you made a mistake in timer operation Has the fuse blown or has the circuit breaker been tripped Check that this is not a damp smell exuded by the walls carpet furniture or cloth items in the room Condensation occurs when the airflow from the air conditioner cools the warm room air This is the protector of the mechanism Wait about three minutes and operation will beg...

Page 39: ...P No MFL42619114 Printed in Korea After reading this manual keep it in a place easily accessible to the user for future reference ...

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