System OWNER'S MANUAL Type: Ceiling Cassette - 4Way FRANÇAIS OPERATING TEMPERATURE(°C) COOLING MODE INDOOR OUTDOOR MAX. MIN. MAX. MIN. 32°C 21°C 43°C 21°C HEATING MODE INDOOR OUTDOOR MAX. MIN. MAX. MIN. 27°C 20°C 24°C 1°C ESPAÑOL Prior to installation, this airconditioning unit must be submitted for approval by the utility service which provides electricity (EN 61000-2, EN 61000-3 Norm). ITALIANO Indoor Unit ENGLISH LG DEUTSCH 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. Ceiling Mounted Cassette - 4Way Type Indoor Unit Owner’s Manual TABLE OF CONTENTS FOR YOUR RECORDS Safety Precautions.................3 Write the model and serial numbers here: Model # Serial # Prior to Operation ..................8 You can find them on a label on the side of each unit. Dealer's Name Date Purchased Operating Instructions...........9 ■ Staple your receipt to this page in the event you need it to prove date of purchase or for warranty issues. Maintenance and Service ....12 READ THIS MANUAL Before you Call for Service...............................14 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 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 with the air conditioner. • 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. 2 Indoor Unit Safety Precautions Safety Precautions WARNING This symbol indicates the possibility of death or serious injury. CAUTION This symbol indicates the possibility of injury or damage to properties only. ■ Meanings of symbols used in this manual are as shown below. 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. WARNING For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. • There is risk of fire or electric shock. • Do not disassemble or repair the product. There is risk of fire or electric shock. Install the panel and the cover of control box securely. Always install a dedicated circuit and breaker. • There is risk of fire or electric shock. • Improper wiring or installation may cause fire or electric shock Always ground the product. • There is risk of fire or electric shock. Use the correctly rated breaker or fuse. • There is risk of fire or electric shock. Owner’s Manual 3 ENGLISH 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. Safety Precautions Do not modify or extend the power cable. • There is risk of fire or electric shock. For installation, always contact the dealer or an Authorized Service Center. • There is risk of fire, electric shock, explosion, or injury. Do not install, remove, or re-install the unit by yourself (customer). • There is risk of fire, electric shock, explosion, or injury. Do not install the product on a defective installation stand. • It may cause injury, accident, or damage to the product. Be cautious when unpacking and installing the product. • Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator. 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. ■ Operation 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. • Moisture may condense and wet or damage furniture. Do not plug or unplug the power supply plug during operation. • There is risk of fire or electric shock. 4 Indoor 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. • There is risk of fire or electric shock. • There is risk of fire or electric shock. Do not touch(operate) the product with wet hands. Do not place a heater or other appliances near the power cable. • There is risk of fire or electrical shock. • There is risk of fire and electric shock. Safety Precautions Do not store or use flammable gas or combustibles near the product. Do not use the product in a tightly closed space for a long time. • It may cause There is risk of fire, failure of the product, or electric shock. • There is risk of fire or failure of product. • Oxygen deficiency could occur. Gasolin When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on. If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable. • Do not use the telephone or turn switches on or off. There is risk of explosion or fire • There is risk of electric shock or fire. 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 shock, or product failure. When the product is soaked (flooded or submerged), contact an Authorized Service Center. • There is risk of fire or electric shock. Ventilate the product from time to time when operating it together with a stove, etc. • There is risk of fire or electric shock. 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. Be cautious that water could not enter the product. • There is risk of fire, electric shock, or product damage. Turn the main power off when cleaning or maintaining the product. • There is risk of electric shock. Owner’s Manual 5 ENGLISH Do not allow water to run into electric parts. Safety Precautions 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 care to ensure that nobody could step on or fall onto the outdoor unit. • This could result in personal injury and product damage. CAUTION ■ Installation Always check for gas (refrigerant) leakage after installation or repair of product. • Low refrigerant levels may cause failure of product. Install the drain hose to ensure that water is drained away properly. • A bad connection may cause water leakage. Keep level even when installing the product. • To avoid vibration or water leakage. 90˚ Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. • It may cause a problem for your neighbors. Use two or more people to lift and transport the product. • Avoid personal injury. Do not install the product 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. ■ Operation Do not expose the skin directly to cool air for long periods of time. (Don't sit in the draft.) • This could harm to your health. 6 Indoor Unit 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. Safety Precautions Do not block the inlet or outlet of air flow. • 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. They are very sharp! • There is risk of personal injury. x Wa Thinner Do not step on or put anyting on the product. (outdoor units) • There is risk of personal injury and failure of product. Do not drink the water drained from the product. • It is not sanitary and could cause serious health issues. Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire. • They may burn or explode. Always insert the filter securely. Clean the filter every two weeks or more often if necessary. • A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction 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. Use a firm stool or ladder when cleaning or maintaining the product. 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. • Be careful and avoid personal injury. • There is risk of fire or explosion 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. • The chemicals in batteries could cause burns or other health hazards. • The chemicals in batteries could cause burns or other health hazards. Owner’s Manual 7 ENGLISH • It may cause product failure. Use a soft cloth to clean. Do not use harsh detergents, solvents, etc. Prior to operation Prior to Operation Preparing for operation 1. Contact an installation specialist for installation. 2. Use a dedicated circuit. Usage 1. Being exposed to direct airflow for an extended period of time could be hazardous to your health. Do not expose occupants, pets, or plants to direct airflow for extended periods of time. 2. Due to the possibility of oxygen deficiency, ventilate the room when used together with 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. Cleaning and maintenance 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 destroy the insulation, leading to possible electric shock. 3. When cleaning the unit, first make sure that the power and breaker are turned off. The fan rotates at a very high speed during operation. There is a possibility of injury if the unit’s power is accidentally triggered on while cleaning inner parts of the unit. Service For repair and maintenance, contact your authorized service dealer. 8 Indoor Unit Operating Instructions Operating Instructions Name and Function of Remote Controller (Optional) AUTO SWING OPERATION SET TEMP Room Temp 2ndF Time Operation unit No Func Program set On Off Set no. Time 01 03 05 07 09 11 13 15 17 19 21 23 5 14 2 3 4 SUB FUNCTION AUTO Heater Preheat JET Defrost Humidify SLo Filter Out door ZONE 1 2 3 4 HI MED LO 1 Timer FAN SPEED 6 7 Timer Cancel 2ndF Program Week Holiday PLASMA Set/Clr Hour Min RESET • Remote Controller Model Standard Type : PQRCUCA0 Simple Type : PCRCUSZ0 Deluxe type : PQRCUDS0 PQRCUDS0B PQRCUDS0S 8 9 10 11 12 13 1. Operation indication screen 2. Swirl button 3. 2ndF button 4. Timer set/cancel Program/Week/Holiday Hour/Min/SET/Clr/Ventilator 5. Set temperature button 6. ON/OFF button 7. Fan operation 8. Operation mode selection button 9. Fan speed button 10. Horizontal/Vertical air flow direction button 11. Room temperature/filtersign release button 12. Plasma/Heater button 13. Time reset button 14. Operation lamp Owner’s Manual 9 ENGLISH Model : ARNU, LRNU-TE/TH/TD/TP/TN/TM Operating Instructions Wireless Remote Controller (optional) This air-conditioner is equipped with wired remote controller basically. But if you want to be available with wireless remote controller, you pay for it. Signal transmitter 5 6 1 3 4 2 7 11 8 13 14 15 10 CANCEL ON OFF 9 17 SET AUTO CLEAN 12 16 Flip-up door (opened) Operation Mode Cooling Operation Auto Operation Healthy Dehumidification Operation Heating Operation • Cooling Model( ), Heat Pump Model( ) 1. Start/Stop Button Operation starts when this button is pressed. 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 Used to select fan speed in four steps low, medium, high and Chaos. 5. Jet Cool Speed cooling/heating operates super high fan speed. 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 Button Used to adjust the time. 9. Timer Set/Cancel Button Used to set the timer when the desired time is obtained 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 Button Used to set the desired horizontal airflow direction. 13. Plasma Used to start or stop the plasma-purification function. 14. Horizontal Airflow Direction Control Button Used to set the desired horizontal airflow direction. 15. Reset Button Initialize remote controller. 16. 2nd F Button Used prior to using modes printed in blue at the bottom of buttons. 17. Auto Clean Used to set Auto Clean mode. CAUTION of handling the Remote Controller • Aim at the signal receptor on the wired remote controller so as to operate. • The remote control signal can be received at a distance of up to about 7m. • Be sure that there are no obstructions between the remote controller and the signal receptor. • Do not drop or throw the remote controller. • Do not place the remote controller in a location exposed to direct sunlight, or near the heating unit, or any other heat source. • Block a strong light over the signal receptor with a curtain or etc. so as to prevent the abnormal operation. (ex:electronic quick start, ELBA, inverter type fluorescent lamp) 10 Indoor Unit Operating Instructions Forced Operation(TP/TN/TM is not abailable) Cooling Model Operating mode Indoor FAN Speed Setting Temperature Cooling High 22°C Forced operation (Tact switch) Heat pump Model Room Temp. ≥ set Temp.-2°C Room Temp. < set Temp.-2°C Cooling Heating set available set available set available set available Auto Restart Function In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions. Tips for Filter sign LED 1. Filter sign lamp (LED) is ON. 2. If LED indicating filter sign lamp is ON, clean the filter. 3. After cleaning the filter, press the Timer button and Then filter sign LED is OFF. button of wired remote controller at the same time for 3 sec. Owner’s Manual 11 ENGLISH Operation procedures when the remote control can't be used. Press the tact switch (Forced operation) for 2 seconds. If you want to stop operation, press again the tact switch. In case the power comes on again after power failure on the Forced Operation mode, the operating conditions are automatically set as follows: During Forced Operation, the initial mode continues. Maintenance and Service Maintenance and Service CAUTION: Before performing any maintenance, turn off the main power to the system. Grille, Case, and Remote Control ❏ Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives. NOTICE Supply power must be disconnected before cleaning the indoor unit. Anti-biofilter Air Intake Air Outlet Air Filters Remote Controller The air filters behind the front grille should be checked and cleaned once every 2 weeks or more often if neccessary. 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. Rack 2. Clean dirt from the air filter using a vacuum cleaner or washing with water. ■ If dirt is conspicuous, wash with a neutral detergent in lukewarm water. ■ If hot water (50°C or more) is used, it may be deformed. Air Filter ■ Never use any of the followings: • Water hotter than 40°C. Could cause deformation and/or discoloration. • Volatile substances. Could damage the surfaces of the air SI N NER conditioner. Be 12 n zene Indoor Unit 3. After washing with water, dry well in the shade. ■ Do not expose the air filter to direct sunlight or heat from a fire when drying it. 4. Install the air filter. SCO U RIN G C LB A R GER Maintenance and Service When the air conditioner is not going to be used for a long time. When the air conditioner is to be used again. Operate the air conditioner at the following settings for 2 to 3 hours. • Type of operation: Fan operation mode. • This will dry out the internal mechanisms. Turn off the breaker. Clean the air filter and install it in the indoor unit. (Refer to page 12 for cleaning it.) Check that the air inlet and outlet of the indoor/outdoor unit are not blocked. CAUTION Turn off the breaker when the air conditioner is not going to be used for a long time. Dirt may collect and may cause a fire. Check that the ground wire is connected correctly. It may be connect to the indoor unit side. Helpful information The air filters and your electiric bill. If the air filters become clogged with dust, the cooling capacity will drop, and 6% of the electricity used to operate the air conditioner will be wasted. 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 wastes electricity. Do not let direct sunshine enter the room when the air conditioner is in operation. Adjust the vertical and horizontal airflow direction to ensure a uniform temperature in the room. Make sure that the doors and windows are shut tight. Clean the air filter regularly. Ventilate the room occasionally. 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 then. Owner’s Manual 13 ENGLISH When it is not going to be used for a long time. Maintenance and Service Before you call for service... ? Troubleshooting Tips! Save time and money! Check the following points before requesting repairs or service.... If the malfunction persist, please contact your dealer. The air conditioner does not operate. The room has a peculiar odor. It seems that condensation is leaking from the air conditioner. Air conditioner does not operate for about 3 minutes when restart. • 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 begin. Does not cool or heat effectively. The air conditioner operation is noisy. Crack sound is heard. • 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 sounds like water flowing. -This is the sound of freon flowing inside the air conditioner unit. • For a noise that sounds like the compressed air releasing into atmosphere. -This is the sound of the dehumidifying water being processed inside the air conditioning unit. • This sound is generated by the expansion/ constriction of the front panel, etc. due to changes of temperature. • Have you made a mistake in timer operation? • Has the fuse blown or has the circuit breaker been tripped? Remote control display is faint, or no display at all. • Are the batteries depleted? • Are the batteries inserted in the opposite (+) and (-) directions? Filter sign lamp (LED) is ON. • Cleaning the filter, press the Timer button and button of wired remote controller at the same time for 3 sec. NOTICE WATER RESISTANT: The outdoor side of this appliance is WATER RESISTANT. The indoor side is not water resistant and should not be exposed to excess water. 14 Indoor Unit P/No.: MFL41919501 Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.