OWNER'S MANUAL 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). FRANÇAIS LG Multi Type Air Conditioner ENGLISH LG ESPAÑOL 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 FOR YOUR RECORDS Safety Precautions.................3 Prior to Operation ..................8 Operating Instructions...........9 Remote Controller ..............9 Remote Control Operation...........................10 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. Additional features...............17 READ THIS MANUAL Maintenance and Service ....20 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. Operation Tips ..................21 Troubleshooting ..............22 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 Room Air Conditioner 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. WARNING ■ Installation Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit. 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. Do not install, remove, or re-install the unit by yourself (customer). • There is risk of fire, electric shock, explosion, or injury. For installation, always contact the dealer or an Authorized Service Center. • There is risk of fire, electric shock, explosion, or injury. 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. 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. Do not install the product on a defective installation stand. • It may cause injury, accident, or damage to the product. 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. ■ Operation Do not touch(operate) the product with wet hands. Do not place a heater or other appliances near the power cable. Do not let electric parts of the product get wet. • There is risk of fire or electrical shock. • There is risk of fire and electric shock. • It may cause There is risk of fire, failure of the product, or electric shock. 4 Room Air Conditioner Safety Precautions If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable. • There is risk of fire or failure of product. • There is risk of electric shock or fire. When the product is soaked (flooded or submerged), contact an Authorized Service Center. • There is risk of fire or electric shock. Gasolin Be cautious that water could not enter the product. • There is risk of fire, electric shock, or product damage. 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. Turn the main power off when cleaning or maintaining the product. • There is risk of electric shock. Take care to ensure that nobody could step on or fall onto the outdoor unit. • This could result in personal injury and product damage. Owner's Manual 5 ENGLISH Do not store or use flammable gas or combustibles near the product. Safety Precautions 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. 90° Do not install the product where the noise or hot air from the outdoor unit could be offensive to the neighborhoods or damage property. • 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 Room Air Conditioner 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. • It may cause product failure. Use a soft cloth to clean. Do not use harsh detergents, solvents, etc. • There is risk of personal injury. ENGLISH • 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! 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. 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. Use a firm stool or ladder when cleaning or maintaining the product. • Be careful and avoid personal injury. Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire. • They may burn or explode. 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. 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. • Could adversley effect operation. 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. • The chemicals in batteries could cause burns or other health hazards. Owner's Manual 7 Prior to operation Prior to operation Preparing for operation 1. Contact an installation specialist for installation. 2. Connect the power cable between indoor unit and outdoor unit properly. 3. Use a dedicated circuit. 4. If the cord/plug is damaged, replace it with only an authorized replacement part. 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. 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. 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. Symbols Used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that could cause harm to the air conditioner. NOTICE This symbol indicates special notes. 8 Room Air Conditioner Operating Instructions Operating Instructions Remote Controller ENGLISH 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. NOTICE Use 2 AAA(1.5volt) batteries. Do not use rechargeable batteries. Storage and Tips For Using the Remote Controller • The remote control may be stored mounted on a wall. • To operate the room air conditioner, aim the remote control at the signal receptor. • The remote control will operate the air conditioner at a distance of up to 7m(23ft). Signal Receptor Receives the signals from the remote control.(Signal receiving sound: two short beeps or one long beep.) Operation Indication Lamps OUT DOOR On/Off : Lights up during the system operation. Sleep Mode : Lights up during Sleep Mode Auto operation. 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. (Cooling model only) OPERATION Signal receptor Operation indication lamps Owner's Manual 9 Operating Instructions Remote Control Operation The Remote Controller transmits the signals to the system. Features of the Remote Control- Door Closed 1. START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again. 2. OPERATION MODE SELECTION BUTTON Used to select the operation mode. 5 6 4 1 3 Flip-up door (closed) 2 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, or CHAOS. 5. JET COOL Used to start or stop the speed cooling. (Speed cooling operates super high fan speed in cooling mode.) 6. CHAOS SWING BUTTON Used to stop or start louver movement and set the desired up/down airflow direction. Operation Mode Cooling Operation Cooling Operation Auto Operation Auto Operation Healthy Dehumidification Operation Healthy Dehumidification Operation Heating Operation (Cooling Model) (Heat Pump Model) Important: ❏ Individual zones should be all in the same operation mode (Heating or Cooling mode) 10 Room Air Conditioner Operating Instructions Used to set the time of starting and stopping operation. 2. TIME SETTING BUTTONS Used to adjust the time. 3. TIMER SET/CANCEL BUTTONS Used to set the timer when the desired time is obtained and to cancel the Timer operation. 4. SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation. 5. AIR CIRCULATION BUTTON ON OFF 4 1 5 2 SET 3 CANCEL 6 8 7 Used to circulate the room air without cooling or heating (turns indoor fan on/off). 6. ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature. 7. RESET BUTTON Used prior to resetting time or after replacing batteries. 8. ˚C TO ˚F SWITCHING BUTTON Used to switch temperature reading from Centigrade to Fahrenheit. Owner's Manual 11 ENGLISH 1. ON/OFF TIMER BUTTONS Signal transmitter Safety Precautions Cooling Operation 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door on the remote control. To select Cooling Operation, press the Operation Mode Selection button. Each time the button is pressed, the operation mode is shifted in the direction of the arrow. Cooling 3 Auto Healthy Dehumidification Heating (Heat pump model only) Close the door on the remote control. Set the temperature lower than the room temperature. The temperature can be set within a range of 18°C~30°C (64°F~86°F) in 1°C (2°F) increments. To raise the temperature To lower the temperature 4 Set the fan speed again with the door of the remote control still closed. You can select the fan speed in four stepslow, medium, high, or CHAOS. Each time the button is pressed, the fan speed mode is shifted. Natural wind by the CHAOS logic ❏ For more fresh feeling than other fan speed, press the Indoor Fan Speed Selector and set to CHAOS mode. In this mode, the wind blows like natural breeze by automatically changing fan speed according to the CHAOS logic. 12 Room Air Conditioner Safety Precautions Auto Operation ENGLISH 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door on the remote control. To 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. Cooling 3 Auto Healthy Dehumidification Heating (Heat pump model only) The temperature and fan speed are automatically set by the electronic controls based on the actual room temperature. If you want to change the set temperature, close the door on the remote control and press the Room Temperature Setting buttons. The cooler or warmer you feel, the more times (up to two times) you should press the button. The set temperature will then be changed automatically. To raise the temperature To lower the temperature 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, manually switch to another mode. The system will not automatically switch from the cooling mode to the heating mode, or from heating to cooling, it must be done by manually resetting. ❏ During Auto Operation, pressing the chaos swing button makes the horizontal louvers swing up and down automatically. If you want to stop auto-swing, press the chaos swing button again. Owner's Manual 13 Operating Instructions Healthy Dehumidification Operation 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door on the remote control. To select Healthy Dehumidification Operation, press the Operation Mode Selection button. Each time the button is pressed, the operation mode is shifted in the direction of the arrow. Cooling 3 Auto Healthy Heating Dehumidification (Heat pump model only) Set the fan speed again with the door of the remote control still closed. You can select the fan speed in four stepslow, medium, high, or CHAOS. Each time the button is pressed, the fan speed mode is shifted. Natural wind by the CHAOS logic ❏ For more fresh feeling than other fan speed, press the Indoor Fan Speed Selector and set to CHAOS mode. In this mode, the wind blows like natural breeze by automatically changing fan speed according to the CHAOS logic. During Healthy Dehumidification Operation: ❏ If you select the dehumidification mode on the operation selection button, the A/C starts to run the dehumidification function, automatically setting the room temp. and airflow volume to the best condition for dehumidification based on the sensed current room temp. In this case, however, the setting temp. is not displayed in the remote control and you are not able to control the room temp. either. ❏ During the healthy dehumidification function, the airflow volume is automatically set according to the optimization algorithm responding to the current room temp. status and makes the room condition healthy and comfortable even in the high humidity season. 14 Room Air Conditioner Operating Instructions Heating Operation(Heat pump model only) ENGLISH 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door on the remote control. To select Heating Operation, press the Operation Mode Selection button. Each time the button is pressed, the operation mode is shifted in the direction of the arrow. Cooling 3 Auto Healthy Heating Dehumidification (Heat pump model only) Close the door on the remote control. Set the temperature higher than the room temperature. The temperature can be set within a range of 16°C~30°C (60°F~86°F) in 1°C (2°F) increments. To raise the temperature To lower the temperature 4 Set the fan speed again with the door of the remote control still closed. You can select the fan speed in four steps–low, medium, high, or CHAOS. Each time the button is pressed, the fan speed mode is shifted. Natural wind by the CHAOS logic ❏ For more fresh feeling than other fan speed, press the Indoor Fan Speed Selector and set to CHAOS mode. In this mode, the wind blows like natural breeze by automatically changing fan speed according to the CHAOS logic. Owner's Manual 15 Operating Instructions Jet Cool 1 Press the Start/Stop button. The unit will respond with a beep. 2 Press the Jet Cool button to operate the speed cooling mode and the unit will operate in super high fan speed on cooling mode for 30 minutes. 3 To cancel the Jet Cool mode, press the Jet Cool button again or the fan speed button or the room temperature setting button and the unit will operate in high fan speed on cooling mode. or or NOTICE ❏ During the JET COOL function at any moment, the A/C starts to blow the cool air at extremely high speed for 30 minutes setting the room temp. automatically to 18°C (64°F). It is especially used to cool the room temp. in the shortest time in a hot summer. In heat pump mode or neuro fuzzy mode however, the JET COOL function is not available. ❏ In order to return to the normal cooling mode from the JET COOL mode, you just press either the operation mode selection button, airflow volume selection or temp. setting button or the JET COOL button again. 16 Room Air Conditioner Additional features Additional features Sleep Mode To cancel the Sleep Mode, press the sleep Mode Auto button several times until the star ( ) disappears from the operation display. 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 Button while aiming at air conditioner. NOTICE The Sleep Mode will be operated at low fan speed (cooling) or medium fan speed (heat pump only) for quiet sleeping. IN COOLING MODE: The temperature will automatically rise by 1°C (2°F) over the next 30 minutes and by 2°C (4°F) in 1 hour for comfortable sleeping. 3. Make sure the Sleep Mode Auto LED lights up. Setting the Time 1. Time can be set only when you have pressed the Reset button. If you have just replaced the batteries, the Reset button should be pressed to reset the time. Press the Start/Stop button. 2. Press the Time Setting buttons until the desired time is set. CANCEL 3. Press the Timer SET button. NOTICE SET Check the indicator for A.M. and P.M. Delay Start/Pre-Set Stop 1. Make sure the time is set correctly on the Remote Controller display. 2. Press the ON/OFF Timer buttons to turn Timer on or off. ON OFF Select one of the following four types of operation. Delay OFF Timer SET To cancel the setting the timer. CANCEL Press the Timer Cancel button while aiming Remote Controller at the signal receptor. (The timer lamp on the air conditioner and the display will go out.) 3. Press the Time Setting buttons until the desired time is set. NOTICE 4. Press the selected on/off setting by pressing the Timer SET button while aiming the Remote Controller at the signal receptor. Delay ON Timer with the unit running Delay OFF and ON Timer Delay ON and OFF Timer Owner's Manual 17 ENGLISH 1. Press the Sleep Mode Auto button to set the time you want the unit to turn off automatically. Additional features Vertical Airflow Direction Control The up/down airflow (Vertical Airflow) can be adjusted by using the remote control. Press the Start/Stop button to start the unit. NOTICE ❏ If you press the CHAOS swing button, the horizontal airflow 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 a natural breeze. ❏ Always use the remote control to adjust the up/down airflow direction. Manually moving the vertical airflow direction louver by hand could damage the air conditioner. ❏ When the unit is shut off, the up/down airflow direction louver will close the air outlet vent of the system. To adjust left/right(Horizontal Airflow) direction Open the door on the remote control. Press Chaos Swing button and the louvers will swing up and down. Press the Chaos Swing button again to set the vertical louver at the desired airflow direction. CAUTION: Ensure unit is turned off before adjusting the horizontal airflow direction control. Carefully open vertical louver to allow access to the horizontal airflow direction. Adjust the left/right airflow direction by hand. Air Circulation Mode Circulates the room air without cooling or heating. 1. Press the Start/Stop button. the unit will respond with a beep. 2. Open the door on the remote control. Press the Air Circulation button. Close the door on the remote control. Now each time that you press the Indoor Fan Speed Selector, the fan speed is shifted from low to CHAOS and back to low again. CHAOS Air Fan speed is on low. Fan speed is on medium. Fan speed is on high. NOTICE ❏ 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. 18 Room Air Conditioner Additional features Forced Operation Open the front panel upward and move the Slide Switch to the Forced Operation position. Slide Switch If you want to stop operation, move the Slide Switch to the Auto Restart or the Remote Control position. In case the power comes on again after power failure on the Forced Operation position, the operating conditions are automatically set as follows: During Forced Operation, the initial mode continues. Cooling Model Operating mode Indoor FAN Speed Setting Temperature Slide Switch FORCED OPERATION AUTO RESTART REMOTE CONTROL Open the front panel upward Heat pump Model Room Temp. ≥ 24°C(76°F) 21°C(70°F) ≤ Room Temp. < 24°C(76°F) Room Temp. < 21°C(70°F) Cooling Cooling Healthy Dehumidification Heating High High High High 22°C(72°F) 22°C(72°F) 23°C(74°F) 24°C(76°F) Auto restart 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. Slide Switch If you want to use this operation, Open the front panel upward and move the slide switch to the Auto Restart position. If you do not want to use this operation, move the Slide Switch to the Remote Control position. Slide Switch FORCED OPERATION AUTO RESTART REMOTE CONTROL Open the front panel upward When you are out for a while, put the Slide Switch on the Remote Control. Helpful information Fan speed and cooling capacity. The cooling capacity indicated in the specification is the value when the fan speed is set to high, and the capacity will be lower at low or medium fan speed. High fan speed is recommended when you wish to cool the room quickly. High Speed Owner's Manual 19 ENGLISH Operation procedures when the remote control can't be used. Maintenance and Service Maintenance and Service CAUTION: Before performing any maintenance, turn off the main power to the system. Indoor Unit 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. AIR FILTERS ❏ Never use any of the followings: • Water hotter than 40°C (104°F) Could cause deformation and/or discoloration. • Volatile substances Could damage the surfaces of the air conditioner. Pow d er G a s o li n e Air inlet vent Air outlet vent Air filters (behind front panel) Vertical louver Horizontal louver The air filters behind the front grille should be checked and cleaned once in every 2 weeks or more often if neccessary. 1. Lift the front access panel and pull the filter tab slightly forward to remove the filter. 2. Clean the filter with a vacuum cleaner or warm, soapy water. • If dirt is conspicuous, wash with a solution of detergent in lukewarm water. • If hot water (40°C (104°F) or more) is used, it may be deformed. 3. After washing with water, dry well in the shade. 4. Re-install the air filter. 20 Room Air Conditioner 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. 1. Operate the air conditioner on Air circulation mode (Refer to page 19) for 2 to 3 hours. • This will dry out the internal mechanisms. 1. Clean the air filter and install it in the indoor unit. (Refer to page 20 for cleaning filters.) 2. Turn off the circuit breaker, and disconnect the power cable. CAUTION: Turn off the circuit breaker when the air conditioner is not going to be used for a long time. 2. Check that the air inlet and outlet of the indoor/outdoor unit are not blocked. Dirt may collect and may cause a fire. 3. Remove the batteries from the Remote Controller. 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 if 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 21 ENGLISH When air conditioner is not going to be used for a long time. Maintenance and Service Troubleshooting Check the following points before requesting repairs or service.... If the fault persists, please contact your dealer or service center. Case Explanation See page 17 The air conditioner does not operate. • Check room temperature setting? • Check if circuit breaker is on? The room has a peculiar odor. • Check that this is not a damp smell exuded by the walls, carpet, furniture, or cloth items in the room. - It seems that condensation is leaking from the air conditioner. • Check the drain hose is connected tight or if indoor unit is installed even. - Air conditioner does not operate for about 3 minutes after turning on. • This is the protector of the mechanism. • Wait about 3 minutes and operation will begin. • About 3 minutes delay is applied to protect compressor from frequenty on/off. Does not cool or heat effectively. • Is the air filter dirty? See air filter cleaning instructions. 20 • Has the temperature been set correctly? 12, 15 - - • Are the indoor unit's air inlet or outlet vents obstructed? - • For a noise that sounds like water flowing. -This is the sound of refrigerant 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. - Remote Controller display is faint, or no display at all. • Are the batteries depleted? • Are the batteries inserted in the opposite (+) and (-) directions? 9 Crack sound is heard. • This sound is generated by the expansion/constriction of the front panel, etc. due to changes of temperature. - The air conditioner operation is noisy. 22 Room Air Conditioner P/No.: 3828A22014P Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.