Please read this manual carefully before operating your set and retain it for future
reference.
Ceiling Cassette - 4Way
Original instruction
OWNER’S MANUAL
AIR
CONDITIONER
www.lg.com
I.15.LEI24.03756.0817
Copyright © 2018 - 2020 LG Electronics Inc. All Rights Reserved.
MFL69440115
Rev.01_051920
ENGLISH
BAHASA INDONESIA
TIẾNG VIỆT
Table of contents
TABLE OF CONTENTS
3 SAFETY PRECAUTIONS
6 PRIOR TO OPERATION
6 Preparing for operation
6 Cleaning and maintenance
6 Service
6 Usage
7 MAINTENANCE AND SERVICE
8 When the air conditioner is not going to be used for a long time.
8 Operation Tips
9 Before you call for service...
2 Indoor Unit
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must be
followed.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified
by the following indications.
ENGLISH
!
WARNING
!
CAUTION
n Meanings of symbols used in this manual are as shown below.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
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.
- There is risk of fire or electric shock.
• For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center.
- Do not disassemble or repair the product. There is risk of fire or electric shock.
• Always ground the product.
- There is risk of fire or electric shock.
• Install the panel and the cover of control box securely.
- There is risk of fire or electric shock.
• Always install a dedicated circuit and breaker.
- Improper wiring or installation may cause fire or electric shock
• Use the correctly rated breaker or fuse.
- There is risk of fire or electric shock.
• 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.
• 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.
• For installation, always contact the dealer or an Authorized Service Center.
- There is risk of fire, electric shock, explosion, or injury.
• Do not install the product on a defective installation stand.
- It may cause injury, accident, or damage to the product.
• Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control box cover are
removed or opened.
- Otherwise, it may cause fire, electric shock, explosion or death.
• 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.
Owner’s Manual 3
Safety Precautions
• Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air or
Oxygen and Do not use Flammable gases. Otherwise, it may cause fire or explosion.
- There is the risk of death, injury, fire or explosion.
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.
• Do not place anything on the power cable.
- There is risk of fire or electric shock.
• Do not touch(operate) the product with wet hands.
- There is risk of fire or electrical shock.
• Do not place a heater or other appliances near the power cable.
- There is risk of fire and electric shock.
• Do not allow water to run into electric parts.
- It may cause There is risk of fire, failure of the product, or electric shock.
• Do not store or use flammable gas or combustibles near the product.
- There is risk of fire or failure of product.
• Do not use the product in a tightly closed space for a long time.
- Oxygen deficiency could occur.
• When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on.
- Do not use the telephone or turn switches on or off.
There is risk of explosion or fire
• If strange sounds, or smell or smoke comes from product. Turn the breaker off or disconnect the power supply
cable.
- There is risk of electric shock or fire.
• Stop operation and close the window in storm or hurricane.
If possible, remove the product from the window before the hurricane arrives.
- There is risk of property damage, failure of product, or electric shock.
• Do not open the inlet grill of the product during operation.
(Do not touch the electrostatic filter, if the unit is so equipped.)
- There is risk of physical injury, electric shock, or product failure.
• When the product is soaked (flooded or submerged), contact an Authorized Service Center.
- There is risk of fire or electric shock.
• Be cautious that water could not enter the product.
- There is risk of fire, electric shock, or product damage.
• Ventilate the product from time to time when operating it together with a stove, etc.
- There is risk of fire or electric shock.
• 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.
• 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.
• Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control box cover are
removed or opened.
- Otherwise, it may cause fire, electric shock, explosion or death.
4 Indoor Unit