Table of Contents
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OWNER'S MANUAL
AIR
CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
4-WAY CEILING CASSETTE, CEILING CONCEALED DUCT
Original instruction
[Representative] LG Electronics Inc. EU Representative :
LG Electronics European Shared Service Center B.V.
Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro,
Seongsan-gu, Changwon-si, Gyeongsangnam-do, KOREA
P/NO : MFL67870326
www.lg.com
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Table of Contents
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Summarization of Contents
BEFORE USE
Preparing for Operation
Steps required before starting the air conditioner.
Usage Guidelines
Guidelines for proper and safe usage of the unit.
Cleaning and Maintenance
Instructions for cleaning and maintaining the air conditioner.
Service Contact Information
Information on contacting service for repairs and maintenance.
PRODUCT INTRODUCTION
Unit Component Identification
Identifies parts for 4-way cassette and concealed duct units.
Pre-Operation Checks and Indicators
Covers pre-operation procedures and explanation of unit indicator lamps.
Remote Controller Overview
Details on wired and wireless remote controllers and their functions.
OPERATING INSTRUCTIONS
Standard Cooling Operation
How to use the air conditioner for standard cooling.
Power Cooling Operation
How to use the power cooling mode for rapid cooling.
Heating Mode Operation
How to use the air conditioner for heating.
Dehumidification Mode
Instructions for using the dehumidification mode.
Fan Mode Operation
How to use the fan-only mode.
Auto Operation Mode
How to use the artificial intelligence auto operation mode.
Airflow Setting
How to adjust airflow direction and fan speed.
Temperature Setting and Check
How to set desired temperature and check room temperature.
Plasma Purification Function
How to use the optional plasma purification function.
Child Lock Function
How to enable or disable the child lock feature.
Change Temperature Setting
How to adjust temperature settings for AI mode.
Elevation Grill Function
How to operate the elevation grill for filter cleaning.
Filter Sign Clear Function
How to reset the filter cleaning indicator.
Vane Angle Control
How to adjust the vane angles for airflow direction.
Changing Current Time
How to set the current time on the remote controller.
Simple Reservation
How to set a simple timer reservation (1-7 hours).
Weekly Reservation
How to set up weekly recurring reservations.
Sleep Reservation
How to set a sleep reservation for automatic operation.
ON Reservation
How to set a reservation to turn the unit ON at a specific time.
OFF Reservation
How to set a reservation to turn the unit OFF at a specific time.
Holiday Reservation
How to set a holiday reservation to stop operation.
MAINTENANCE AND SERVICE
Indoor Unit Cleaning
Procedures for cleaning the indoor unit's grille, case, and remote control.
Air Filter Maintenance
How to clean and maintain the air filters for optimal performance.
Purifying Filter Maintenance
Cleaning and replacement procedures for the optional purifying filter.
Operation Tips and Storage
General tips for efficient operation and procedures for long-term storage.
Troubleshooting Tips
Common Issues and Solutions
Explanations for common operational problems and their causes.
Urgent Service Situations
Situations requiring immediate professional service attention.
Need help?
Do you have a question about the UT48 and is the answer not in the manual?
Questions and answers