I
INSTALLATION INSTRUCTIONS
(cont,nue,)
TEMPERATURE LIMITING
The normal range of the thermostat control is
approximately
60°F.
to
85°F.
The control range
may be narrowed by the use of the temperature
limiting screws located behind the control panel.
Repositioning the screw on the left will limit the
maximum temperature about
3°F. for each hole
in a clockwise rotation; the screw on the right will
limit the minimum temperature when moved
counterclockwise. Limiting the maximum and
minimum settings prevents users from turning
the controls to extreme positions. Restrictions to
full rotation of the thermostat knob may require
explanation to the room occupant that unit
will provide comfortable conditions at
settings allowed.
To access the limiting screws, remove the room
cabinet, remove the Thermostat knob and the
Operation knob by pulling each knob off its shaft
and removing the control panel. Set the limiters to
the desired setting, replace the control panel and
the control knobs. If the original settings do not
allow sufficient room temperature control the
limiter screws may have to be repositioned.
stop
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Holes (10)
Stop location as shipped
If the temperature limiters are used it is
recommended that the limiters be set no higher
than the second hole from the original bottom
position. This provides an operating range
between approximately
66°F.
and
79°F.
In order to
maximize the benefit of the temperature limiting it
may be necessary to adjust the limiter screws
seasonally to allow unoccupied rooms to be
maintained at moderate temperatures (i.e., heating
season temperatures limited between
60°F.
and
75°F.;
cooling season temperatures limited
between
85°F.
and
65°F.).
VENTILATION CONTROL
The VENTILATION control lever is located at the
lower left side of the unit, behind the room cabinet.
This lever controls the
vent door and is set in the
CLOSE position at the
factory so outdoor air will
not enter the room through
the unit and only indoor
air is circulated by the
air conditioner.
Moving the lever to OPEN
opens the vent door and
draws outdoor air through
the air conditioner and into
the room. Leaving the vent
door OPEN during extreme
temperature conditions reduces heating or cooling
effectiveness and increases operating
costs.
WATER DRIPPAGE
Water dripping from the wall case during heat
pump operation is to be expected. In heat pump
operation, water condenses on the outdoor coil
and frost melts, causing drippage.
It can be eliminated by attaching a drain kit to the
unit and routing the water through a drain system.
If the unit has an Internal Condensate Removal
(lCR) feature, the drippage should be minimal.
Installation of a drain system is recommended if no
drippage of condensate to the outdoors is allowable.
9
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