www.lgservice.com ENGLISH OWNER’S MANUAL AIR CONDITIONER System Indoor Unit (2 Series) Please read this manual carefully before operating your set and retain it for future reference. TYPE : CEILING CONCEALED DUCT- HIGH STATIC P/NO : MFL66302201 Ceiling Concealed Duct – High Static Type Indoor Unit Ownerʼ s Manual TABLE OF CONTENTS FOR YOUR RECORDS Safety Precautions.................3 Write the model and serial numbers here: Model # Prior to Operation ..................8 Operating Instructions...........9 Name and Function of Remote Controller..............................9 Maintenance and Service .....11 Before you Call for Service................................13 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 to prove date of purchase or to issue warranty. 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 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 ENGLISH Ownerʼ s Manual 3 Safety Precautions 4 Indoor Unit Safety Precautions ENGLISH Ownerʼ s Manual 5 Safety Precautions 6 Indoor Unit Safety Precautions ENGLISH Ownerʼ s Manual 7 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 unitʼ 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 1. Operation indication screen 2. Set temperature button • It will set not room temperature but outlet air temperature. 1 10 9 8 2 3 7 11 12 13 ENGLISH Name and function of wired remote controller(Accessory) 3. Fan speed button • Fan Speed have 3 Steps. • Middle and Low step is same 4. ON/OFF button 4 5. Opration mode selection button 5 6. Wireless remote controller receiver • Some products don't receive the wireless signals. 6 7. Air flow button 14 8. Subfunction button 15 9. Function setting button 10. Ventilation button 11. Reservation 12. Up,down,left,right button • To check the indoor temperature, press Please attach the inform label inside of the door. Please choose proper language depend on your country. button. 13. Room temperature button • Displays only the room temperature of the remote controller perception. • There is no control of room temperature. • In case of fresh air intake unit, displays only the temperature around remote controller. 14. Setting/Cancel button 15. Exit button ※ Some functions may not be operated and displayed depending on the product type. ※ It will display strange value to the room temperature if wired remote controller is not connected. Model : PQRCVSL0 (Black Color) PQRCVSL0QW (White Color) Ownerʼ s Manual 9 Operating Instructions Name and function of wired remote controller(Optional) 1. Plasma button (optional) Used to start or stop the plasma-purification function. 2. Jet cool button Speed cooling operates super high fan speed. 3. Operation mode selection button Used to select the operation mode. 8 4. Function setting button Used to set or clear auto clean or smart clean. 1 9 5. LCD luminosity button (optional) Used to adjust LCD luminosity 2 10 6. Smart clean button (optional) Used to start or stop smart clean. 7. Clear all button Used to clear all timer. 11 3 12 4 13 14 5 6 8. Room temperature setting button Used to select the room temperature. 9. ON/OFF button Used to turn off/on the unit. 15 10. Indoor fan speed selection button Used to select fan speed in four steps low, medium, high and chaos. 7 16 11. Auto swing button Used to stop or start louver movement and set the desired up/down airflow direction. PQWRCDF0 (Heat pump) PQWRHDF0 (Cooling only) 12. Horizontal airflow direction control button (optional) Used to set the desired horizontal airflow direction. Operation Mode 13. Timer and time setting button Used to set the time of starting or stopping and sleeping operation. Cooling Mode 14. Room temperature checking button Used to check the room temperature. Auto Mode or Auto Changeover 15. ˚C/˚F switch button Used to switch temperature reading from Celsius to Fahrenheit. Dehumidification mode Heating Mode 16. Reset button Used to reset the remote controller. Fan Mode • Cooling Model( 10 ), Heat Pump Model( Indoor Unit ) Maintenance and Service Maintenance and Service CAUTION: Before performing any maintenance, turn off the main power to ENGLISH the system. Grille, Case, and Remote Controller ❏ Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives. NOTICE Power supply must be disconnected before cleaning the indoor unit. Air Filters The air filters behind the front grille should be checked and cleaned once every 2 weeks or more often if neccessary. Air outlet vent Air filters 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. ■ Never use any of the followings: • Water hotter than 40°C. Could cause deformation and/or discoloration. • Volatile substances. Could damage the SI surfaces of the air N NER Be conditioner. n zene 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. 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. SCO U RIN G C LB A R GER 4. Install the air filter. Ownerʼ s Manual 11 Maintenance and Service When the air conditioner is not going to be used for a long time. When it is not going to be used for a long time. When the air conditioner is 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 9 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 connected 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. 12 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. Indoor Unit Since windows are kept closed, it is a good idea to open them and ventilate the room now and then. 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 persists, 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? ENGLISH ? 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. Ownerʼ s Manual 13 P/No.: MFL66302201 After reading this manual, keep it in a place easily accessible to the user for future reference.