7
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.  
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
OPERATION
Do not provide power to or operate the unit if it is ooded 
or submerged.
There is risk of re, electric shock, physical injury or death.
Use a dedicated power source for this product.
There is risk of re, electric shock, physical injury or death.
Do not operate the disconnect switch with wet hands.
There is risk of re, electric shock, physical injury or death.
Periodically verify the hanging bolts and other hardware 
securing the unit have not deteriorated.
If the unit falls from its installed location, it can cause property damage,  
product failure, physical injury or death.
If refrigerant gas leaks out, ventilate the area before operat-
ing the unit.
If the unit is mounted in an enclosed, low-lying, or poorly ventilated area 
and the system develops a refrigerant leak, it may cause re, electric 
shock, explosion, physical injury or death.
SAFETY INSTRUCTIONS
Note:
Clean up the site after installation is nished, and check 
that no metal scraps, screws, or bits of wiring have been left 
inside or surrounding the unit.
Do not use this equipment in mission critical or special- 
purpose applications such as preserving foods, works of art, 
wine coolers or refrigeration. This equipment is designed to 
provide comfort cooling and heating.
Provide power to the compressor crankcase heaters at least 
six (6) hours before operation begins.
Starting operation with a cold compressor sump(s) may result in severe 
bearing damage to the compressor(s). Keep the power switch on during 
the operational season. 
Do not block the inlet or outlet.
Unit may malfunction.
Securely attach the electrical cover to the indoor unit. Non-
secured covers can result in re due to dust or water in the 
service panel.
Periodically verify the equipment mounts have not deterio-
rated.
If the base collapses, the unit could fall and cause property damage or 
product failure.
Do not allow water, dirt, or animals to enter the unit.
There is risk of unit failure.
Do not allow water, dirt, or animals to enter the unit.
There is risk of unit failure, re, electric shock, physical injury or death.
Avoid excessive cooling and periodically perform ventilation 
to the unit.
Inadequate ventilation is a health hazard.
Do not touch the refrigerant piping during or after operation.
It can cause burns or frostbite.
Do not operate the unit with the panel(s) or protective  
cover(s) removed; keep ngers and clothing away from  
moving parts.
The rotating, hot, cold, and high-voltage parts of the unit can cause  
physical injury or death.
Periodically check power cable and connection for damage.
Cable must be replaced by the manufacturer, its service agent, or similar 
qualied persons in order to avoid physical injury and/or electric shock.
Do not open the inlet grille of the unit during operation. 
Do not operate the unit with the panels or guards removed. 
Do not insert hands or other objects through the inlet or 
outlet when the unit is powered.  Do not touch the electro-
static lter, if the unit includes one. 
The unit contains sharp, rotating, hot, and high voltage parts that can 
cause personal injury and/or electric shock.
Ensure no power is connected to the unit other than as  
directed in this manual. Remove power from the unit before 
removing or servicing the unit.
There is risk of unit failure, re, electric shock, physical injury or death.
Securely attach the electrical cover to the unit.
Non-secured electrical covers can result in burns or electric shock due to 
dust or water in the service panel.
To avoid physical injury, use caution when cleaning or  
servicing the air conditioner.