LG LG Room Air Conditioner OWNER'S MANUAL MODELS: SU/SZ/S3 Chassis 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. P/No.
Room Air Conditioner Owner’s Manual TABLE OF CONTENTS Safety Precautions.........................3 FOR YOUR RECORDS Write the model and serial numbers here: Model # Prior to Operation ..........................8 Serial # You can find them on a label on the side of each unit. Dealer's Name Introduction ....................................9 Electrical Safety ...........................10 Operating Instructions.................12 Maintenance and Service ............
Safety Precautions Safety Precautions To prevent the injury of 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 to properties only. ■ The meanings of the symbols used in this manual are as shown below.
Safety Precautions Always install an air leakage breaker and a dedicated switching board. • No installation may cause a fire and electrical shock. Do not keep or use flammable gases or combustibles near the air conditioner. • Otherwise, it may cause a fire or the failure of product. Ensure that an installation frame of the outdoor unit is not damaged due to use for a long time. • It may cause injury or an accident. x Wa Thinner Do not disassemble or repair the product randomly.
Safety Precautions Take the power plug out if necessary, holding the head of the plug and do not touch it with wet hands. Do not use the power cord near the heating tools. • Otherwise, it may cause a fire or electrical shock. • Otherwise, it may cause a fire and electrical shock. Do not allow water to run into electrical parts. Hold the plug by the head when taking it out. • Otherwise, it may cause the failure of machine or electrical shock. • It may cause electric shock and damage.
Safety Precautions When the product is submerged into water, always contact the service center. Take care so that children may not step on the outdoor unit. • Otherwise, it may cause a fire or electrical shock. • Otherwise, children may be seriously injured due to falling down. ■ Installation Install the drain hose to ensure that drain can be securely done. • Otherwise, it may cause water leakage. Always inspect gas leakage after the installation and repair of product.
Safety Precautions ■ Operation Avoid excessive cooling and perform ventilation sometimes. • Otherwise, it may do harm to your health. Use a soft cloth to clean. Do not use wax, thinner, or a strong detergent. • The appearance of the air conditioner may deteriorate, change color, or develop surface flaws. When gas leaks, open the window for ventilation before operating the unit. • Otherwise, it may cause explosion, and a fire.
Prior to Operation Prior to Operation Preparing for Operation 1. Contact an installation specialist for installation. 2. Plug in the power plug properly. 3. Use a dedicated circuit. 4. Do not use an extension cord. 5. Do not start/stop operation by plugging/unplugging the power cord. 6. If the cord/plug is damaged, replace it with only an authorized replacement part. Usage 1. Being exposed to direct airflow for a long time may be hazardous to your health.
Introduction Introduction 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. This symbol indicates special notes. NOTICE Features WARNING: This appliance should be installed in accordance with national wiring regulations. This guide acts as a guide to help to explain product features.
Electrical Safety Electrical Safety WARNING: This appliance must be properly grounded. To minimize the risk of electric shock, you must alway plug into a grounded oulet. Preferred method Ensure proper ground exists before use WARNING: Do not cut or remove the grounding prong from the power plug.
Electrical Safety Temporary Use of an Adapter We strongly discourage the use of an adapter due to potential safety hazards. For temporary connections, use only a UL-listed 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.
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. NOTICE Use 2 AAA(1.5volt) batteries. Do not use rechargeable batteries. Storage and Tips for using the Remote Controller • The remote controller may be stored by mounting it on a wall.
Operating Instructions Remote Control Operations The controls will look like the following. Controls Signal transmitter 5 1 6 3 4 2 7 11 8 13 10 CANCEL ON OFF 9 12 SET AUTO CLEAN 17 18 14 16 15 Flip-up door (opened) Operation Mode Cooling Operation Auto Operation or Auto Changeover Healthy Dehumidification Operation Heating Operation • Cooling Model( ), Heat Pump Model( ) 1. START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again. 2.
Operating Instructions Cooling operation 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. 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 ON Auto Healthy Dehumidification Heating (Heat pump model only) Close the door of the remote controller. Set the temperature lower than the room temperature.
Operating Instructions Auto operation (Cooling model only) 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. 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.
Operating Instructions Auto changeover operation(Heat pump model only) 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. To select Auto Changeover 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 changeover Healthy Dehumidification Heating (Heat pump model only) Close the door of the remote controller.
Operating Instructions Healthy dehumidification operation 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. 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 ON Auto Healthy Heating Dehumidification (Heat pump model only) Set the fan speed again with the door of the remote controller still closed.
Operating Instructions Heating operation (Heat pump model only) 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. 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 ON Auto Heating Healthy (Heat pump model only) Dehumidification Close the door of the remote controller.
Operating Instructions Jet cool operation 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 at super high fan speed on cooling mode for 30 minutes. 3 To cancel the Jet Cool mode, press the Jet Cool button, the fan speed button or the room temperature setting button again and the unit will operate at high fan speed on cooling mode.
Operating Instructions NANO PLASMA purification operation(Optional) 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote controller. Press the NANO PLASMA button. Operation will start when the button is pressed and stop when the button is pressed again. 3 Set the fan speed again with the door of the remote controller 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.
Operating Instructions 2nd F operation 1 Press the Start/Stop button. The unit will respond with a beep. 2 Open the door of the remote control and press the 2nd Function button to operate functions printed in blue unter buttons. (Check the indication of 2nd function on the display of the remote controller.) These buttons can set the timer as follows: ON OFF SET CANCEL ON OFF SET AUTO CLEAN 3 2nd function disappears in a short time automatically or when the button is pressed again.
Operating Instructions Additional Features Sleep mode 1. Press the Sleep Mode Auto button to set the time 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 Button while aiming at air conditioner. 3. Make sure the Sleep Mode Auto LED lights up.
Operating Instructions Vertical Airflow Direction Control The up/down airflow (Vertical Airflow) can be adjusted by using the remote control. 1. Press the Start/Stop button to start the unit. 2. 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.
Operating Instructions Auto clean (Optional) AUTO CLEAN 1. Whenever you press the Auto Clean button, Auto Clean Function will be reserved and cancelled. 2. Auto Clean function works before and after cooling or dehumidification mode. For details, refer to the below points. 3. When the unit is started after the reservation of Auto Clean ,the Cool Start function operates and indoor Fan is started after 20 seconds. 4.
Operating Instructions Forced operation Operation procedures when the remote control can't be used. The operation will be started if the power button is pressed. If you want to stop operation, re-press the button. Power button Cooling Model Operating mode Indoor FAN Speed Setting Temperature Cooling High 22°C Room Temp. ≥ 24°C Heat pump Model 21°C ≤ Room Temp. < 24°C Room Temp.
Maintenance and Service Maintenance and Service Indoor Unit WARNING: 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. 1. Open the upside of Front Panel Front panel 2. Put up the Front panel. The hook of panel comes off. Panel hook 3. Come down the panel and then remove the air filter.
Maintenance and Service 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. NOTICE Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs.
Maintenance and Service Common Problems and Solutions Before calling for service If you have problems with your air conditioner, read the following information and try to solve the problem. If you cannot find a solution, turn off the air conditioner and contact your dealer. Air conditioner does not operate 1. Ensure that the air conditioner is plugged into a proper outlet. 2. Check the fuse or circuit breaker. 3. Check whether the voltage is unusually high or low.
Maintenance and Service Troubleshooting The air conditioner may be operating abnormally when: Problem Air conditioner does not start Air conditioner does not cool as it should Air conditioner freezing up 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.
Memo 30 Room Air Conditioner
