Owner’s Manual

18
OPERATION
Manual Controls
VENTILATION
To use ventilation door, remove the screw which fas-
ten the ventilation door.(See Figure 5)
The ventilation lever is located to the upper right side
of the unit.
The ventilation lever must be in the CLOSE position in
order to maintain the best cooling & heating condi-
tions.
When outdoor air is necessary in the room, set the
ventilation lever to the OPEN position.
The Ventilation door is opened and outdoor air is
drawn into the room.
This will reduce the cooling or heating efficiency.
NOTE
This effect will reduce the cooling or heating efficiency.
In order to work correctly, installer or customer will
have to remove glass or panels to better exhaust hot
air.
Figure 5
NOTE
A slight heat odor may come from the unit when first
switching to HEAT after the cooling season is over.
This odor, caused by fine dust particles on the
heater, will disappear quickly. This is harmless.
CAUTION
• When the air conditioner has been running
and is turned off or set to the fan position,
wait at least 3 minutes before resetting to
the cooling & heating operations.
!
CAUTION
• PTAC exhausting discharge air in balcony
that is closed off with glass or panels.
This causes hot air to be pulled back into
the fresh air intake.
!
Ventilation door
VENT
OPEN
VENT
CLOSE
Indoor Outdoor
Greenhouse Effect
Enclosed outdoor area
Glass or
panels
CAUTION
• Failure to follow this caution may result in
equipment damage or improper operation.
• Blocking indoor(curtain or bedclothes etc.)
or outdoor discharge air could cause
premature failure of unit.
• If there has a gap between rear side of
product & outside wall, the air splitter need
to be used on unit.
!
INDOOR
IN
D
OOR
Sleeve
Wall
Outside Wall
Air Splitter
Rear side of product