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CAUTION

CAUTION

CAUTION

CAUTION

4

Do not clean the air
conditioner with water.

• Water may enter the unit and

degrade the insulation. It may
cause an electric shock.

Ventilate well when used
together with a stove, etc.

• An oxygen shortage may occur.

When the unit is to be
cleaned, switch off, and turn
off the breaker.

• Since the fan rotates at high

speed during operation, it may
cause an injury.

Do not put a pet or house
plant where will be exposed
to direct air flow.

• This could injure the pet or plant.

Do not apply an insecticide 
or flammable spray.

• It may cause a fire or

deformation of the cabinet.

Do not leave on installation
stand which is damaged.

• The unit may drop or fall down

and cause an injury.

Do not put a stove, etc.
where is exposed to direct
air flow.

• It may cause imperfect

combustion.

When the unit is not going to
be used for a long time, turn
off the breaker.

• It may cause an injury.

Do not step on the outdoor
unit and do not put anything
on it.

• It may cause an injury through

dropping or falling down.

Do not operate for a long
time in high humidity, e.g.
leaving a door or window
open.

• In the cooling mode, if it is

operated in a room with high
humidity (80%r.h. or more) for a
long time, water condensed in
the air conditioner may drop and
may wet and spoil furniture, etc.

Do not step onto an unstable
bench when
attaching/detaching the
panel.

• It may case an injury, etc. by

falling down.

Do not use for special
purposes.

• Do not use this air conditioner to

preserve precision devices, food,
animal, plants and art objects. 
It may cause deterioration of
quality, etc.

If the supply cord is damaged, it
must be replaced by a special cord
or assembly availible from the
manufacturer of  its service agent.

• If will cause electrical shock or

fire.

When the air filter is to be
removed, do not touch the
metal parts of the indoor unit.

• It may cause an injury.

Do not insert hands through
vanes when the air
conditioner is operating.

• It will cause an injury by the

rotating blower.

• 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 infirm persons without

supervision.

• Young children should be supervised to ensure that they do not play with the air conditioner.

Summary of Contents for LT-D4880RJ

Page 1: ...and preventing improper use PRECAUTIONS Pay close attention to precautions in order to prevent potential hazards and damage from misuse or improper installation LG is not responsible for any damages caused by misuse of the product LG Cassette Type Air Conditioner OWNER S MANUAL LG Prior to installation this air conditioning unit must be submitted for approval by the utility service which provides ...

Page 2: ...ng tips If you review our chart of Troubleshooting Tips first you may not need to call for service at all 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...

Page 3: ...y cord is damaged it must be replaced by a service agent or a similarly qualified person in order to avoid a hazard Do not operate switches with wet hands It may cause electrical shock Plug in the power plug properly It will cause electrical shock or fire due to heat generation Do not operate or stop the unit by inserting or pulling out the power plug It will cause electrical shock or fire due to ...

Page 4: ...high humidity e g leaving a door or window open In the cooling mode if it is operated in a room with high humidity 80 r h or more for a long time water condensed in the air conditioner may drop and may wet and spoil furniture etc Do not step onto an unstable bench when attaching detaching the panel It may case an injury etc by falling down Do not use for special purposes Do not use this air condit...

Page 5: ...ls from the remote control 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 operating unit Refer to page 19 Timer Lights up during Timer operation Defrost Mode Lights up during Defrost Mode or Hot Start operation Heat pump model only Outdoor Unit Lights up du...

Page 6: ...ed to select the operation mode Auto Operation Mode Cooling Operation Mode Soft Dry Operation Mode Heating Operation Mode except cooling model Auto Swing Button Used to swing up and down Room Temperature Checking Button Used to check the room temperature Plasma Air Clean Button optional Timer Cancel Button Used to cancel the timer Timer Set Button Used to set the timer when the desired time is obt...

Page 7: ...d to circulate the room air without cooling or heating turns indoor fan on off ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature RESET BUTTON Used prior to resetting time or after replacing batteries INDOOR FAN SPEED SELECTOR Used to select fan speed in four steps low medium high or CHAOS ROOM TEMPERATURE SETTING BUTTONS Used to select the room temperature ORERATION MODE SELECTIO...

Page 8: ...JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 OPERATION FAN SPEED SUB FUNCTION SET TEMP Hour Min Week RESET Set the Current Time and day of the Week 1Press the button Each time the button is pressed the number is changed from 0 0 to 2 3 This number indicates current hour For example if it is 14 25 press button 14 times...

Page 9: ...4 OPERATION FAN SPEED SUB FUNCTION SET TEMP 01 03 05 07 09 11 13 15 17 19 21 23 Time Weekly Programming 1Press the Program button The remote controller is displayed like a picture Then and 01 is blinked 2 Press the button Press button repeatedly until desired mode appears For example if you want Thu press button 4 times 3Select the time you want Press or button then blinking letter is shown If you...

Page 10: ...EED SUB FUNCTION SET TEMP 01 03 05 07 09 11 13 15 17 19 21 23 Time AUTO SWING 10 If Tuesday is a holiday in this week you may set a holiday Press the Program button 1 Press the Week button Select the Tuesday 2 Press the Holiday button Then the remote controller will be displayed The outside rectangular means holiday 3 Program Press the Timer button 1 Timer Min Hour Press or button then you can con...

Page 11: ...rost Filter Preheat Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 Plasma 3 1 4 2 11 ENGLISH Operation Mode Operation Procedure Cooling Mode Cooling Mode Soft Dry Mode Auto Mode Cooling Model Soft Dry Mode Heating Mode Auto Mode Heat Pump Model 1st 2nd 3rd 4th On Off Button Operation Mode Selection Button Room Temperature Setting Button Indoor Fan Speed Selection Button...

Page 12: ...G OPERATION FAN SPEED SUB FUNCTION SET TEMP AUTO HEAT PUMP MODEL Cooling Operation Soft Dry Operation Heating Operation Auto Operation Operation Display ZONE Operation unit Program set RoomTemp MED LO AUTO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP HI LO HI ZONE O...

Page 13: ...Program set RoomTemp MED AUTO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP LO ZONE Operation unit Program set RoomTemp MED LO AUTO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWIN...

Page 14: ...15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP HI Defrost ZONE Operation unit Program set RoomTemp MED LO AUTO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP HI LO HI ZONE Operation unit Program set RoomTemp MED JET Heater Defrost Filter P...

Page 15: ...mperature Cold Cool Proper Warm Hot Auto Operation Mode Cooling model 1Press the On Off Button 2To 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 During Auto Operation You cannot switch the indoor fan speed It has already been set by the Fuzzy rule If the system is not operating as desired ...

Page 16: ... 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP AUTO HEAT PUMP MODEL Cooling Operation Soft Dry Operation Heating Operation Auto Operation Operation Display HI ZONE Operation unit Program set Room Temp MED LO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN...

Page 17: ...ion unit Program set Room Temp MED AUTO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4 AUTO SWING OPERATION FAN SPEED SUB FUNCTION SET TEMP LO HI ZONE Operation unit Program set Room Temp LO AUTO JET Heater Defrost Filter Preheat Humidify Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 1 2 3 4...

Page 18: ...peed on cooling mode 3To cancel the Jet Cool mode press the Jet Cool button again or the Fan Speed button or the room Set Temperature button and the unit will operate in high fan speed on cooling mode NOTE During the Jet Cool function at any moment the A C starts to blow the cool air at extremely high speed setting the room temp automatically to 18 C It is especially used to cool the room temp in ...

Page 19: ...rocedure To set the Child Lock Function Press the Timer button and Minute Set button for three seconds Then the operation mode shift to child lock mode and it is displayed CL in the operation display When you press any button in this time the remote controller is not converted to any selected mode and the CL is displayed in the remote controller for about three seconds But the Room Temperature fun...

Page 20: ...tarting Operation is the function to operate procedures automatically to the previous operating conditions Filter sign lamp LED is ON If LED indicating filter sign lamp is ON clean the filter After cleaning the filter press the Timer button and button of wired remote controller at the same time for 3 sec Then filter sign LED is OFF Heat pump Model Cooling Model Room Temp set Temp 2 C Room Temp set...

Page 21: ...ry cloth Do not use bleach or abrasives NOTE Supply power must be disconnected before cleaning the indoor unit When the air filter is to be removed do not touch the metal parts of the indoor unit It may cause an injury Remove the Air filters Take hold of the tab and pull slightly forward to remove the filter Clean dirt from the air filter using a vacuum cleaner or washing with water If dirt is con...

Page 22: ...he air filters pull slightly forward to remove the PLASMA filter Dip the PLASMA filter into the water mixed with neutral detergent for 20 30 minutes Dry the PLASMA filter in the shade for a day Especially the humidity must be removed perfectly on this parts Note the cuts of electric discharge lines Re install the PLASMA filter to the original position Don t touch this PLASMA Filter within 10 secon...

Page 23: ... ground wire is connected correctly It may be connect to the indoor unit side Do not overcool the room This is not good for the health and wastes electricity Keep blinds or curtains closed Do not let direct sunshine enter the room when the air conditioner is in operation Keep the room temperature uniform Adjust the vertical and horizontal airflow direction to ensure a uniform temperature in the ro...

Page 24: ... conditioner cools the warm room air This is the protector of the mechanism Wait about three minutes and operation will begin Is the air filter dirty See air filter cleaning instructions The room may have been very hot when the room air conditioner was first turned on Allow time for it to cool down Has the setting temperature been set incorrectly Are the indoor unit s air inlet or outlet vents obs...

Page 25: ...P No 3828A20111P Printed in Korea After reading this manual keep it in a place easily accessible to the user for future reference ...

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