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Owner's Manual 

3

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.

Meanings of symbols used in this manual are as shown below.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

Be sure not to do.

Be sure to follow the instruction.

Installation

Do not use a defective or
underrated circuit breaker.
Use this appliance on a
dedicated circuit.

• There is risk of fire or electric

shock.

For electrical work, contact
the dealer, seller, a qualified
electrician, or an Authorized
Service Center.

• Do not disassemble or repair the

product. There is risk of fire or
electric shock.

Always ground the product.

• 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.

Always install a dedicated
circuit and breaker.

• Improper wiring or installation

may cause fire or electric shock

Use the correctly rated
breaker or fuse.

• There is risk of fire or electric

shock.

Summary of Contents for LTND4881QC

Page 1: ...oner OWNER S MANUAL LG 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 referenceafter reading it thoroughly ...

Page 2: ...t 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: ...o follow the instruction Installation Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center Do not disassemble or repair the product There is risk of fire or electric shock Always ground the product There is risk of f...

Page 4: ...to the product Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury Do not plug or unplug the power supply plug during operation There is risk of fire or electric shock Do not touch operate the product with wet hands There is risk of fire or electrical shock Do not place ...

Page 5: ... of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the product from the window before the hurricane arrives There is risk of property damage failure of product or electric shock Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric sh...

Page 6: ...oduct where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation 90 When the product is not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation Take ca...

Page 7: ...lfunction or damage Do not insert hands or other objects through the air inlet or outlet while the product is operated There are sharp and moving parts that could cause personal injury Do not drink the water drained from the product It is not sanitary and could cause serious health issues Use a firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury Repla...

Page 8: ...stoves or other heating devices 3 Do not use this air conditioner for non specified special purposes e g preserving precision devices food pets plants and art objects Such usage could damage the items 1 Do not touch the metal parts of the unit when removing the filter Injuries can occur when handling sharp metal edges 2 Do not use water to clean inside the air conditioner Exposure to water can des...

Page 9: ...air conditioner This symbol indicates special notes NOTICE Features Anti bacteria Anti bacteria Heat Pump Model Cooling Model Air Outlet Air Intake Signal Receptor Signal Receptor Symbols used in this Manual WARNING This appliance should be installed in accordance with national wiring regulations This guide acts as a guide to help to explain product features ...

Page 10: ... from the power wire WARNING 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 WARNING If you have any doubt whether the air conditioner is properly grounded have the wall receptacle and circuit checked by a qualified electrician Prefer...

Page 11: ...o 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 23 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 during outdoor unit operation Operation Cooling model ...

Page 12: ... OFF TIMER BUTTONS Used to set the time of starting and stopping operation 8 TIME SETTING BUTTONS Used to adjust the time 9 TIMER SET CANCEL BUTTON Used to set and to cancel the timer operation 10 SLEEP MODE AUTO BUTTON Used to set sleep mode auto operation 11 AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating 12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room...

Page 13: ...ired indoor temperature by pressing the ROOM TEMPERATURE SETTING BUTTONS For cooling the temperature can be set within 18 C 30 C and for heating the temperature range is 16 C 30 C Set the fan speed with the remote controller You can select the fan speed in four steps low medium high and CHAOS by pressing the INDOOR FAN SPEED SELECTOR BUTTON Each time the button is pressed the fan speed mode is shi...

Page 14: ...emperature and the fan speed are automatically set by the electronic control logic based on the current room temperature If you feel hot or cold press the temperature setting buttons respectively for more cooling or heating effect NOTE You cannot set the actual setting temperature and the indoor fan speed in this operation mode But you can use the Chaos swing in this operation If the system is not...

Page 15: ... hygienic air 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 Jet cool function cannot be activated during heating or auto changeover operations In case of Inverter Art Cool and Art Cool Wide non Deluxe model you can...

Page 16: ... select the operation mode Cooling Operation Mode Soft Dry Operation Mode Heating Operation Mode except cooling model Auto Operation Mode 7 Auto Swing Button Used to swing up and down 8 Room Temperature Checking Button Used to check the room temperature 9 Plasma Air Clean Button optional 10 Timer Cancel Button Used to cancel the timer 11 Timer Set Button Used to set the timer when the desired time...

Page 17: ...e heat exchanger and panel vents may be professionally steam cleaned Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs NOTICE Air Filters The air filters behind the front grille should be checked and cleaned once every 2 weeks or more often if neccessary CAUTION When the air filter is to be removed do not touch the metal parts of the indoor ...

Page 18: ...nstall it in the indoor unit 2 Check that the air inlet and outlet of the indoor outdoor unit are not blocked 3 Check that the ground wire is connected correctly It may be connect to the indoor unit side Do not overcool the room This is not good for your health and wastes electricity Keep blinds or curtains closed Do not let direct sunshine enter the room when the air conditioner is in operation K...

Page 19: ... 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 temperature been set incorrectly Are the indoor unit s air inlet or outlet vents obstructed For a noise that sound...

Page 20: ...P No 3828A36002N ...

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