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LG
Cassette-Type Air Conditioner
OWNER'S MANUAL
IMPORTANT
Please read through this manual. It contains valuable
information about your air conditioner. This manual may
help save time and money by explaining proper product
maintenance and preventing improper use.
PRECAUTIONS
Pay close attention to precautions in order to prevent
potential hazards and damage from misuse or improper
installation. LG is not responsible for any damages caused
by misuse of the product.
Prior to installation, this air-conditioning
unit must be submitted for approval by the
utility service which provides electricity
(EN 61000-3 Norm.)
LG
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Summary of Contents for LG LTUD4881EA
- Page 1 PRECAUTIONS Pay close attention to precautions in order to prevent potential hazards and damage from misuse or improper installation. LG is not responsible for any damages caused by misuse of the product. Prior to installation, this air-conditioning unit must be submitted for approval by the utility service which provides electricity (EN 61000-3 Norm.)
- Page 2 Cassette-Type Air Conditioner Owner’s Manual TABLE OF CONTENTS or Your Records Write the model and serial numbers here: Model # Serial # 1. Safety Precautions You can find them on a label on the side of each unit. 2. Operating Instructions Dealer's Name Date Purchased 3.
- Page 3 Safety Precautions Precautions To prevent injury and property damage, follow these instructions. Incorrect operation due to ignoring instructions will cause harm or damage, the seriousness of which is indicated by the following symbols. This symbol shows the possibility of death or serious injury. WARNING This symbol indicates the possibility of injury or damage to property.
- Page 4 CAUTION CAUTION • 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 infirm persons without supervision.
- Page 5 Safety Operating Instructions Precautions Indoor Unit, Outdoor Unit Indoor Unit Heat Pump Model Signal Receptor Anti-bacteria Anti-bacteria Anti-bacteria Cooling Model Intake Air Outlet Remote Controller Signal Receptor Signal Receptor Receives the signals from the remote control. (Signal receiving sound: two short beeps or one long beep.) Operation Indication Lamps On/Off : Lights up during the system operation.
- Page 6 Name and Function of Remote Controller Remote Controller AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Room Temp Heat Pump Model AUTO Heater Preheat Defrost Humidify Filter Out door Time ZONE 1 2 3 4 Timer Operation unit Program set Set no.
- Page 7 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. OPERATION DISPLAY Signal transmitter Displays the operation conditions. (Transmits the signals to the signal receptor) ON/OFF BUTTON Operation starts when this button is pressed and stops when the button is pressed again.
- Page 8 Set the Current Time and day of the Week Unless you press any button about 5 (sometimes 10) seconds while setting function, the setting mode returns to initial mode. Press the ' ' button. Hour Each time the button is pressed, the number is changed from This number indicates current hour.
- Page 9 Weekly Programming Press the Program button. The remote controller is displayed like a picture. Then ' ', ' ' and '01' is blinked. Program set Program AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Room Temp AUTO Heater Preheat Defrost Humidify Filter...
- Page 10 Holiday Setting If Tuesday is a holiday in this week, you may set a holiday. AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Room Temp AUTO Heater Preheat Defrost Humidify Program Filter Out door Press the Program button. Time ZONE 1 2 3 4 Timer...
- Page 11 Operation Mode Cooling Mode Cooling Mode Soft Dry Mode Soft Dry Mode Auto Mode Heating Mode (Cooling Model) Auto Mode (Heat Pump Model) Operation Procedure On/Off Button AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Room Temp AUTO Heater Preheat Defrost Humidify...
- Page 12 Cooling Operation Mode Press the On/Off Button. Select Cooling Operation. Press the Operation Mode Selection Button. Each time the button is pressed, the operation mode is shifted in the arrow direction. HEAT PUMP MODEL Operation Display AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION AUTO SWING...
- Page 13 Soft Dry Operation Mode This mode dehumidifies without overcooling. Press the On/Off Button. Select Soft Dry Operation. Press the operation Mode Selection Button. Each time the button is pressed, the operation mode is shifted in the arrow direction. HEAT PUMP MODEL Operation Display AUTO SWING OPERATION...
- Page 14 Heating Operation Mode (Heat pump model only) Press the On/Off Button. Select Heating Operation. Press the Operation Mode Selection Button. Each time the button is pressed, the operation mode is shifted in the arrow direction. Operation Display AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION...
- Page 15 Auto Operation Mode (Cooling model) Press the On/Off Button. 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 MODEL Operation Display AUTO SWING OPERATION SET TEMP...
- Page 16 Auto Operation Mode (Heat pump model) Press the On/Off Button. 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. HEAT PUMP MODEL Operation Display AUTO SWING OPERATION...
- Page 17 FAN Operation Mode Press the On/Off Button. Press FAN Operation Button. AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Room Temp AUTO Heater Preheat Defrost Humidify Filter Out door Time ZONE 1 2 3 4 Timer Operation unit Program set Set no.
- Page 18 Jet Cool Operation Mode Press the On/Off button. The unit will respond with a beep. AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Press the Jet Cool button to operate the Room Temp AUTO Heater Preheat Defrost Humidify speed cooling mode and the unit will Filter Out door Time...
- Page 19 Auto Swing Mode Press the On/Off Press the Auto Swing Press again the Auto button. button then the Swing button to (Confirm the unit horizontal cancel the on operation.) louvers swing Auto Swing mode. up and down automatically. Child Lock Function AUTO SWING OPERATION SET TEMP...
- Page 20 Forced Operation 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: Forced operation...
- Page 21 Care and maintenance of the air Care and conditioner Maintenance Indoor Unit Grille, Case and Remote Control Turn the system off before cleanining, To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives. NOTE: Supply power must be disconnected before cleaning Anti-biofilter the indoor unit.
- Page 22 Purifying filter (Optional) Cleaning After removing the air filters, pull slightly forward to remove the PLASMA filter. The PLASMA filter behind the air filters should be checked and cleaned once every 3 months or Dip the PLASMA filter into the water mixed with more often if necessary.
- Page 23 When the air conditioner is not GOING to be used for a long time. When it is not going to be used for When the air conditioner is to be used again. a long time. Operate the air conditioner at the Clean the air filter and install it in the following settings for 2 to 3 hours.
- Page 24 Troubleshooting Before you call for service... Tips Troubleshooting Tips! Save time and money! Check the following points before requesting repairs or service..If the malfunction persist, please contact your dealer. Case Explanation See page • Have you made a mistake in timer operation? The air conditioner does not operate.
- Page 25 Memo...
- Page 26 Memo...
- Page 27 P/No.: 3828A20111M Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.