Visit us at http://www.lgservice.com LG LG Room Air Conditioner OWNER'S MANUAL Dear Owner Thank you for installing LG air conditioner. Your best choice guarantees you a great performance and service to make your life comfortable & pleasant. 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. Room Air Conditioner Owner’s Manual TABLE OF CONTENTS A. Safety Precautions ..............................3 B. Electrical Safety...................................6 Temporary Use of an Adapter ...............6 Temporary Use of an Extension Cord ...6 Symbols used in this Manual.................6 C. Product Introduction...........................7 Indoor Units ...........................................7 Operation Indication Lamps ..................8 Outdoor Unit ..........................................8 D. Operating Instructions........................9 How to insert the Batteries ....................9 Wireless Remote Controller Maintenance..........................................9 Operating Method..................................9 Wireless Remote Controller.................10 Operation Mode...................................11 Healthy Dehumidification Operation....12 Auto Operation (Cooling Only Model)...........................12 Auto Changeover Operation (Heat Pump Model) .............................12 Jet Cool/Heat Operation......................13 NEO PLASMA Purification Operation (Optional).............................................13 Auto Clean (Optional)..........................13 Energy-Saving Cooling Mode (Optional).............................................14 Forced operation .................................14 Sleep Mode .........................................15 Setting the Current Time .....................15 Timer Setting .......................................15 Vertical / Horizontal Airflow Direction Control (Optional) ................................16 Air Circulation Mode ............................16 Auto Restart Function..........................16 E. Maintenance and Service..................17 Indoor Unit...........................................17 Outdoor Unit ........................................19 Operation Tips!....................................19 Self-Diagnosis Function ......................19 Troubleshooting Tips! Save time and money!.........................20 Call the service immediately in the following situations ..............................20 2 Room Air Conditioner 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 ■ Staple 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 appliance 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 appliance. • When the power cord is to be replaced, replacement work shall be performed by authorized personnel only using only genuine replacement parts. • Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only. • If the appliance is supplied from a cord extension set or an electrical portable outlet device, the cord extension set on electrical portable outlet device must be positioned so that it is not subject to splashing or ingress of moisture. 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. • There is a risk of electric shock. 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. 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. 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. 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. • An charged capacitor can cause electrical shock. • Otherwise the unit may fall and cause severe injury. 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. 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 use only those parts which are listed in the svc parts list. Never attempt to modify the equipment. • 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 thraw 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 the 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. 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. • 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. • There is risk of fire, failure of the product, or electric shock. Do not open the front grille of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) • 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. If strange sounds, 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. 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. • 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. 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. 4 Room Air Conditioner • 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. 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. 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. • There is risk of damage or loss of property. Do not touch the metal parts of the product when removing the air filter. • There is risk of personal injury. Do not insert hands or other objects through the air inlet or outlet while the product is operating. • There are sharp and moving parts that could cause personal injury. Do not tilt the unit when removing or uninstalling it. • The condensed water inside can spill . Dismantling the unit, treatment of the refrigerant oil and eventual parts should be done in accordance with local and national standards. Do not block the inlet or outlet of air flow. • It may cause product failure. Use a soft cloth to clean. Do not use harsh detergents, solvents or splashing water etc. • There is risk of fire, electric shock, or damage to the plastic parts of the product. Do not step on or put anyting on the product. (outdoor units) • There is risk of personal injury and failure of product. Be cautious when unpacking and installing the product. Always insert the filter securely after cleaning. Clean the filter every two weeks or more often if necessary. • A dirty filter reduces the efficiency. If the refrigerant gas leaks during the repair, do not touch the leakaing refrigerant gas. • Sharp edges could cause injury. • The refrigernat gas can cause frostbite (cold burn) 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. • If air enters the refrigerant system, an excessively high pressure results, causing equipment damage or injury. • Otherwise it can be harmfull for your health. 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. • They may burn or explode. • There is risk of fire or product failure. 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. 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. • Moisture may condense and wet or damage furniture. Do not drink the water drained from the product. Do not expose your skin or kids or plants to the cool or hot air draft. • This could harm to your health. Use a firm stool or ladder when cleaning, maintaining or repairing the product at an height. • It is not sanitary and could cause serious health issues. • Be careful and avoid personal injury. OPERATING TEMPERATURE(°C) - Non Inverter Model COOLING MODE INDOOR MAX. 32°C OUTDOOR MIN. 21°C MAX. 43°C MIN. 21°C HEATING MODE INDOOR MAX. 27°C OUTDOOR MIN. 20°C MAX. 24°C MIN. 1°C OPERATING TEMPERATURE(°C) - Inverter Model COOLING MODE INDOOR MAX. 32°C OUTDOOR MIN. 18°C MAX. 43°C MIN. 10°C HEATING MODE INDOOR MAX. 30°C OUTDOOR MIN. 18°C MAX. 24°C MIN. -10°C Owner's Manual 5 Electrical Safety Electrical Safety • This appliance must be properly grounded. To minimize the risk of electric shock, you must alway 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 guide acts as a guide to help to explain 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. NOTE This symbol indicates special notes. 6 Room Air Conditioner Product Introduction Product Introduction Here is a brief introduction of the indoor and outdoor units. Please see the information specific to your indoor unit type. Indoor Units Standard Split Type Display panel LED indicators Air inlet Grille tab Plasma filter (Optional) Front grille ON/OFF button Air filter Signal receiver Air outlet Louvers Flap (Vertical blades) (Horizontal blade) Art Cool Type Display panel LED indicators Front panel Signal receiver Plasma filter Air filter ON/OFF button Power cord Air discharge Art Cool Type Wide Display panel LED indicators Plasma filter Air inlet Front panel Power cord Air filter Signal receiver ON/OFF button Air discharge Owner's Manual 7 Product Introduction Art Cool Deluxe(Type 1) Display panel LED indicators Art Cool Deluxe(Type 2) Display panel LCD indicators Air inlet Air filter Air inlet Plasma filter Plasma filter Air filter Air discharge Air discharge Front panel Power cord ON/OFF button Signal receiver Front panel Power cord Signal receiver ON/OFF button Operation Indication Lamps On/Off : Lights up during the system operation, error code and auto restart setting. Sleep mode : Lights up during sleep mode auto operation.(non-Inverter Model) Energy-Saving : Lights up during Energy-Saving Cooling Mode Operation(Inverter Model only) Cooling Mode Plasma : The function illustrates its dynamic mode by using a multiple lighting system. Timer : Lights up during timer operation.(non-Inverter Model) Lights up during timer operation or sleep mode auto operation (Inverter Model only) Defrost mode : Lights up during defrost mode or *hot start operation (Heat pump model only) OUT DOOR Outdoor unit operation : Lights up during outdoor unit operation. (Cooling model only) Power Display : Indicates the setting temperature and operation mode. Operation Cooling, heating, mode Dehumidification Standard Mode Auto operation mode Too hot Hot Comfortable Cold Too cold Jet Test Energy-saving Cool/Heat cooling mode operation Auto clean Setting Shape of display temperature * Hot start operation: Stops the indoor fan in heating operation for minutes to prevent cold air from blowing out from unit. * In defrost mode unit stops heating operation for few minutes to remove formation of ice on the heat exchanger coils to maintain the efficiency. Outdoor Unit Air intake vents Connecting wires Refrigerant pipes Air outlet vents Base plate 8 Room Air Conditioner Drain hose 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(1.5volt) batteries. Do not use rechargeable 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. Owner's Manual 9 Operating Instructions Wireless Remote Controller The controls will look like the following. Signal transmitter 5 1 6 3 4 10 2 7 11 8 13 CANCEL ON OFF 9 12 17 19 18 14 SET AUTO CLEAN 15 16 Flip-up door (opened) Operation Mode Cooling Operation Auto Operation or Auto Changeover Healthy Dehumidification Operation Heating Operation • Cooling Model( ), Heat Pump Model( NOTE ) 1. START/STOP BUTTON Used to turn off/on the unit. 2. OPERATION MODE SELECTION BUTTON Used to select the operation mode. 3. ROOM TEMPERATURE SETTING BUTTONS Used to select the room temperature. 4. INDOOR FAN SPEED SELECTOR BUTTON Used to select fan speed in four steps low, medium, high and CHAOS. 5. JET COOL BUTTON Used to start or stop the speed cooling. (It operates fan in super high speed in cooling mode) 6. CHAOS SWING BUTTON Used to stop or start louver movement and set the desired up/down airflow direction. 7. ON/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. ENERGY-SAVING COOLING MODE BUTTON (INVERTER MODEL) Used to set energy-saving cooling mode operation. 12. ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature. 13. PLASMA BUTTON(OPTIONAL) Used to start or stop the plasma-purification function. 14. HORIZONTAL AIRFLOW DIRECTION CONTROL BUTTON (OPTIONAL) Used to set the desired horizontal airflow direction. 15. RESET BUTTON Used prior to resetting time. 16. 2nd F BUTTON Used prior to using modes printed in blue at the bottom of buttons. 17. AUTO CLEAN BUTTON(OPTIONAL) Used to set auto clean mode. In some models this button has a 2nd function of LED luminosity control. 18. HEATER BUTTON(OPTIONAL) (Not available in all models) 19. LCD LUMINOSITY BUTTON(OPTIONAL) Used to adjust LCD luminosity. To use the functions printed in blue at the bottom of the buttons press 2nd F button first and then the required function button. Pressing the 2nd F button activates the blue printed function of the respective button. To cancel the function press the 2nd F button again else it will automatically cancel if remains idle after 10 seconds. 10 Room Air Conditioner Operating Instructions Operation Mode 1 3 1 Press the START/STOP BUTTON to turn the unit on. The unit will respond with a beep. 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. 4 ON 2 Cooling Auto Changeover Healthy Dehumidification Heating (Heat pump model only) Auto Operation (Cooling Only Model) Auto Changeover (Heat Pump Model) 3 4 For cooling or heating operation set the desired 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. To raise the temperature To lower the temperature 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 shifted. CHAOS Air Fan speed is on low. Fan speed is on medium. Fan speed is on high. Natural wind by the CHAOS logic ❏ For fresher feeling, press the INDOOR FAN SPEED SELECTOR BUTTON selector and set to CHAOS mode. In this mode, the wind blows like a natural breeze by automatically changing fan speed according to the CHAOS logic. Owner's Manual 11 Operating Instructions Healthy Dehumidification Operation Healthy Dehumidification During Healthy Dehumidification Operation ❏ If 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. ❏ During 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. To run the healthy dehumidification mode follow steps 1, and 2 and 4 (See operation mode) Auto Operation (Cooling Only Model) In this operation mode the actual setting temperature 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. Auto 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 operating as desired, switch manually to another mode. To run the auto operation follow steps 1, and 2. (See operation mode) Auto Changeover Operation (Heat Pump Model) Auto operation basically is heating or cooling function of the air 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 Changeover To run the auto changeover operation follow steps 1, 2, 3, and 4. (See operation mode) 12 Room 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 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 setting temperature for 60 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 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 use jet heat function by pressing JET COOL BUTTON for heating operation. • Art Cool and Art Cool Wide models close the side discharges during jet cool/heat operation, for strong cooling and heating. NEO 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 can be started by pressing the PLASMA BUTTON on the remote controller. Repressing it will deactivate the operation. NOTE This feature can be used in any operation mode and any fan speed can be used while plasma filter is functioning. Auto Clean (Optional) ❏ During auto clean function, moistures left in indoor units after cooling operation or healthy dehumidification operation can be removed. AUTO CLEAN NOTE 1. Press the AUTO CLEAN BUTTON to activate this function. 2. Now 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. 3. This dries up any remains of moisture & cleans the unit internally. 4. If you press AUTO CLEAN BUTTON again during operation, this function is cancelled. ❏ During auto clean function, only START/STOP BUTTON, PLASMA BUTTON and AUTO CLEAN BUTTON can be used. Owner's Manual 13 Operating Instructions Energy-Saving Cooling Mode (Optional) Energy-saving cooling mode can save energy in cooling and healthy dehumidification operation, because it can operate efficiently by setting body-adaptation time according to the change of time and temperature and adjusting automatically desired temperature. 1. Press the START/STOP BUTTON to start the unit. 2. Open the door on the remote controller. Select cooling operation or healthy dehumidification operation. 3. Press the ENERGY-SAVING COOLING MODE BUTTON. 4. To cancel the energy-saving cooling mode, press the ENERGY-SAVING COOLING MODEL BUTTON again and unit will operate in previous mode(Cooling or healty dehumidification mode). Display Luminosity (Optional) The Display Luminosity can be adjusted by using the remote control. Press the start/stop button to start the unit. Open the door on the remote control, press the 2ndF button and, press display luminosity button. Display will be dark. Press the button again to set bright display. Forced operation Operation procedures when the remote control can't be used. The operation will be started if the ON/OFF button is pressed. If you want to stop operation, re-press the button. ON/OFF button Cooling Model Operating mode Indoor FAN Speed Setting Temperature Cooling High 22°C Room Temp. ≥ 24°C Cooling High 22°C Heat pump Model 21°C ≤ Room Temp. < 24°C Healthy Dehumidification High 23°C Room Temp. < 21°C Heating High 24°C 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. 14 Room Air Conditioner Operating Instructions Sleep Mode 1. Press the SLEEP MODE AUTO BUTTON to set the time when you want the unit to stop automatically. 2. 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 times. To alter the time period in steps of 1 hour, press the SLEEP MODE AUTO BUTTON while aiming at air conditioner. 3. • (In case of non-Inverter Model) Make sure the sleep mode LED lights up. To cancel the sleep mode, press the SLEEP MODE AUTO BUTTON several times until the sleep mode LED lights off. • (In case of Inverter Model) Make sure the Timer LED lights up. To cancel the sleep mode, press the SLEEP MODE AUTO BUTTON several times until the Timer LED lights off. NOTE • The sleep mode will operate indoor fan at slow speed in cooling mode and at medium speed in heating mode for pleasant sleep. • Art Cool and Art Cool Wide (non-Deluxe) close the lower discharge partially in sleep mode for pleasant sleep. In cooling mode or healthy dehumidification mode: The setting temperature will rise automatically two times by 1°C over next consecutive 30 minutes (2°C in 1 hour) for a comfortable sleep. Now this will be the final setting temperature as long as sleep mode is functioning. Setting the Current Time 1. Time can be set only when you press the RESET BUTTON. Having replacing the batteries, you should press the RESET BUTTON to reset the time. Press the Start/Stop button. 2. Press 2nd F button and check if icon is on. 3. Press the TIME SETTING BUTTONS until the desired time is set. 4. Press the TIME SET/CANCEL BUTTON. CANCEL SET NOTE Check the indicator for A.M. and P.M. Timer Setting 1. Make sure to set current time correctly on the display of the remote controller. 2. Press 2nd F button. 3. Press the ON/OFF TIMER BUTTONS to turn timer on or off. ON OFF 4. Press the TIME SETTING BUTTONS until the desired time is set. CANCEL 5. To set the selected time, press the TIMER SETTING BUTTONS aiming the remote controller at the signal receptor. To cancel the timer setting Check if icon is off. Press the TIMER CANCEL BUTTON aiming the remote controller at the signal receptor. (The timer lamp on the air conditioner and the display will go off.) SET CANCEL SET NOTE Select one of the following four types of operation. Delay off timer Delay on timer Delay off and on timer Delay on and off timer Owner's Manual 15 Operating Instructions Vertical / Horizontal Airflow Direction Control (Optional) The up/down airflow (Vertical airflow) can be adjusted by using the remote controller. The left/right(Horizontal airflow) can be adjusted by using the remote control. 1. Press the START/STOP BUTTON to start the unit. 1. Press the START/STOP BUTTON to start the unit. 2. Press CHAOS SWING BUTTON. 2. Press the HORIZONTAL AIRFLOW DIRECTION BUTTON. 3. The louvers will swing up & down automatically. 4. To stop the louver at a desired angle, press again 3. The louvers will swing left & right automatically. 4. To stop the louvers at a desired angle, press again. NOTE • By pressing the CHAOS SWING BUTTON the horizontal air flow direction is changed automatically based on the chaos algorithm to distribute the air in the room evenly and at the same time to make the human body feel most comfortable as if enjoying natural breeze. • Always use the remote controller to adjust the up and down air flow direction. Manually moving the vertical air flow direction louver by hand could damage the mechanism.When the unit is shut off, the up/down airflow direction louver will close the air outlet vent of the system. Air Circulation Mode This operation circulates the air without cooling or heating. It can be activated by pressing the AIR CIRCULATION BUTTON. Once the air circulation is activated you can select the air speed by pressing the INDOOR FAN SPEED SELECTOR BUTTON. NOTE CHAOS Air economizes power consumption and prevents overcooling. The fan speed is automatically changed from high to low or vice versa, depending on the ambient temperature. • In case of inverter type models where there is no AIR CIRCULATION BUTTON, air circulation can be operated by pressing the PLASMA 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 indicator lamp(2) will blink 4 times. To enable it, press the button again for 6 seconds. The unit will beep twice and the indicator lamp(1) will blink 4 times. 16 Room 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. It may cause deformation and discoloration. • Volatile substances. They may damage the surface of the air conditioner. Pow d er G a s o li n e 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 Filters 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. Deodorizer Filters Remove the deodorizer filters behind the air filter and expose them in direct sunlight for 2 hours. And then insert these filters into original position. Removal of Filters 1. Art Cool Type : Pull down the grille bottom, after lifting out the filter tab a bit and take the filter out slowly. Remove the plasma filter as shown. After cleaning and drying well reinstall the filter and grille by matching the hook. Front panel hook Hookhanger Front panel Air filter Plasma filter Air filter 2. Art Cool Type Wide : The procedure of removal of filters is same as in Art Cool Type model as shown above. Don't touch this plasma filter within 10 seconds after opening the inlet grille, it may cause an electric shock. Owner's Manual 17 Maintenance and Service 3. Deluxe (Type 1): Open the upside of the panel and lift it up as shown. The hooks of the panel will come off. Remove the air filters. Then pull out the plasma filter Plasma filter Front panel Panel hook After cleaning and drying well reinstall the filters in their original position. 4. Deluxe (Type 2): 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 deodorizer filter by slightly pulling forward. Plasma filter Front panel How to use the front panel 1. Front panel closing Move the link upward and close the front panel. 2. Front panel removing Raise the link up to hook hanger and remove front panel forward. 5. Standard Split Type : Two different methods to open the front panel based on types of air conditioner as below ; Type 1: 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 deodorizer filter by slightly pulling forward. Deodorizer filter Plasma filter 18 Room Air Conditioner Maintenance and Service Type 2: Pull the front panel from both sides as shown. Then pull the filter tab slightly forward to remove the filter. After removing the air filter remove the plasma and triple deodorizer filter by slightly pulling forward. Deodorizer filter Plasma filter Don't touch this plasma filter within 10 seconds after opening the inlet grille, it may cause an electric shock. 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. This is not good for the health and wastes electricity. Make sure that the doors and windows are shut thight. Avoid opening doors and windows as much as possible to keep the cool air in the room. Keep the room temperature uniform. Do not let direct sunshine enter the room when the air conditioner is in operation. Clean the air filter regularly. Blockages in the air filter reduce the airflow and lower cooling and dehumidifying effects. Clean at least once every two weeks. Adjust the vertical and horizontal airflow direction to ensure a uniform temperature in the room. Ventilate the room occasionally. Since windows are kept closed, it is a good idea to open them and ventilate the room now and ten. Use high fan speed for effective and fast cooling. 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( Please contact your serviceman/dealer in such a situation Error Display LED ( (once) 3 sec ) ) will blink in case if thermistor fails. Check Point • Indoor room temperature thermistor open/short. • Indoor pipe temperature thermistor open/short. 3 sec 3 sec Owner's Manual 19 Maintenance and Service Troubleshooting Tips! Save time and money! The air conditioner may be operating abnormally when: Problem Air conditioner does not start Air conditioner does not cool as it should 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. ■ 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. ■ High voltage. • If the voltage is unusually very high or low the circuit Breaker will trip. ■ Airflow is restricted. • Make sure there are no curtains, blinds, or furniture blocking the front of the air conditioner. ■ The air filter is dirty. • Clean the filter at least every 2 weeks. See the Maintenance and Service section. ■ The room may have been hot. • When the air conditioner is first turned on, 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. 20 Room Air Conditioner P/No.: 3828A24010E Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.