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OWNER’S MANUAL AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference. TYPE : CEILING CONCEALED DUCT www.lg.com MFL68221109 P/NO.: MFL68221109...
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TIPS FOR SAVING ENERGY TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: •...
SAFETY PRECAUTIONS IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product WARNING It can result in serious injury or death when the directions are ignored CAUTION It can result in minor injury or product damage when the directions are ignored WARNING...
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SAFETY PRECAUTIONS • Do not let the air conditioner run for a long time when the humidity is very high and a door or a win- dow is left open. Moisture may condense and wet or damage furniture. Operation • Take care to ensure that power cable could not be pulled out or damaged during operation. - There is risk of fire or electric shock.
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SAFETY PRECAUTIONS CAUTION Installation • Always check for gas (refrigerant) pressure 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. •...
TABLE OF CONTENTS TABLE OF CONTENTS TIPS FOR SAVING MAINTENANCE AND ENERGY SERVICE Grille, Case, and Remote Control Air Filter IMPORTANT SAFETY When the air conditioner is not going..INSTRUCTIONS Operation Tips! Troubleshooting Tips! Save time and money! BEFORE USE Preparing for operation Usage Cleaning and maintenance...
PRODUCT INTRODUCTION BEFORE USE Preparing for operation • Contact an installation specialist for installation. • Use a dedicated circuit. Usage • 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. •...
PRODUCT INTRODUCTION PRODUCT INTRODUCTION Name and function of parts Air intake vents Air outlet Remote vents Controller SPEED TEMP OPER MODE 1: Indoor unit 2: Outdoor unit 3: Remote controller 4: Inlet air 5: Discharge air 6: Refrigerant piping, connection electric wire 7: Drain pipe 8: Ground wire wire to ground outdoor unit to prevent electrical shocks.
PRODUCT INTRODUCTION Simple Wired Remote Controller Operation Display Panel Temperature Control Button Fan Speed Button On/Off Button Operation Mode select Button * Each function will be shown on the dis- play panel for three seconds or so when the power is applied at first. SPEED TEMP OPER...
OWNER'S INSTRUCTION OWNER'S INSTRUCTION Standard Operation - Cooling Mode It cools the room by comfortable and clean wind. Cooling operation will begin if you press button. Press the temperature button and set the desired room temperature lower than the current room temperature. A click of the button will increase the desired temperature by 1 °C or 2 °F.
OWNER'S INSTRUCTION Standard Operation - Heating Mode It supplies warm wind to the indoor If you want to set the heating operation, press the button. And press the OPER MODE button. Set the desired room temperature higher than the current room temperature. A click of the button will increase the desired temperature by 1 °C or 2 °F.
OWNER'S INSTRUCTION Standard Operation - Auto Operation Mode After operating the product by pressing button, set up the auto operation by pressing the button. OPER MODE “Auto Change Over Mode” – Heat pump model only When desired the set temperature is higher than the room temperature during the auto operation =>...
OWNER'S INSTRUCTION Standard Operation - Dehumidification Mode It removes humidity while air-cooling weakly. After operating the product by pressing button, set up the dry (Dehumidification) by pressing the OPER MODE button. When the dry operation is selected, “dh” will be shown on the display window as shown on the left side.
OWNER'S INSTRUCTION Standard Operation - Fan Mode It blows the air as it is in the indoor, not the cold wind. After operating the product by pressing button, set up the fan operation by pressing the button. OPER MODE When the dry operation is selected, “Fn” will be shown on the display window as shown on the left side.
OWNER'S INSTRUCTION Function Setting - Fan Speed Selection It blows the air as it is in the indoor, not the cold wind. SPEED Fan Speed Selection in Cooling Operation SPEED TEMP OPER MODE Fan Speed Selection in Heating, Dry, Fan, Auto-Operation...
OWNER'S INSTRUCTION Function Setting - Room Temperature Check When pressing the button of the remote SPEED controller Adjustment section for approx. 3 seconds, the room Temperature will be indicated for about 5 seconds Before resuming to the previous display panel. In the case of the room temperature display, the room Temperature can be different in accordance with the Setting of the remote...
OWNER'S INSTRUCTION Function setting - Child Lock It is the function to use preventing children or others from careless using. During the operation, when pressing the button and button for approx. 3 seconds, SPEED the ‘Child Lock’ Function can be used. - At the time of initial setting of the ‘Child Lock’, the ‘CL’...
OWNER'S INSTRUCTION Function setting - Celsius / Fahrenheit Switching This function is used for switching the display between Celsius and Fahrenheit. (Optimized only for U.S.A) OPER When pressing the button and MODE button simultaneously for more than 3 seconds, the system will be entered into the installer setting mode.
MAINTENANCE AND SERVICE CAUTION Before performing any maintenance, turn off the main power to the system. Grille, Case, and Remote Clean dirt from the air filter using a vacuum cleaner or washing with water. Control - If dirt is conspicuous, wash with a neutral - Turn the system off before cleaning.
CARE AND MAINTENANCE When the air conditioner is not Helpful information going..The air filters and your electiric bill. If the air filters become clogged with dust, the cooling capacity will drop, and 6% of the elec- tricity used to operate the air conditioner will When air conditioner is not going to be wasted.
CARE AND MAINTENANCE 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 The room has a pecu- It seems that conden- Air conditioner does does not operate.
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