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1.1 FEATURES AND BENEFITS
The PTAC has many features, some of which are different than those found on conventional PTAC units. The servicer must be
familiar with these features in order to properly service the unit.
VERTICAL AIR DEFLECTOR
AIR FILTER
INLET GRILLE
(Air Intake)
• IIR (Infinite Impulse Response)
The IIR function senses the temperature several times per second and makes micro-adjustments several times per
• Compressor Restart Delay
This feature extends the overall life of compressor by preventing the short-cycling of the air-conditioner. When the compressor
restarts, LG PTAC is designed to give a minimum of three minutes to have a time of equalizing the refrigerant pressures for
optimizing cycling.
• Fan-Only Setting - High/Low
The fan can run at HIGH or LOW speed without COOLING or HEATING to provide air circulation and ventilation.
• Indoor Fan Speed Selections - High/Low
The fan can run at HIGH or LOW speed for either COOLING or HEATING.
• Two Fan motors
The unit has two fan motors to provide quiet operation and maximum efficiency.
• LED Diagnostics
All units have this feature indicating the problem when the unit is not operating properly with easy-to-read diagnostics. For
example, 1 blink every 2 seconds indicates compressor failure.
Copyright ©2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
THE SLEEVE AND THE REAR GRILLE
(Available as an option)
SLEEVE ASSEMBLY
(Horizontal Louver)
(Including Aluminum Rear Grille)
REAR GRILLE
(Aluminum Rear Grille)
- 3 -
EXPANDED METAL GRILLE
(Superior for a performance)
LGE Internal Use Only
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