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FILTERS
A one inch throwaway filter is supplied with each unit. The
filter slides into position making it easy to service. This
filter can be serviced from the outside by removing the
service door. A one inch washable filter and two inch
pleated filter are also available as optional accessories. The
internal filter brackets are adjustable to accommodate the
two inch filter by loosening two (2) screws on each bracket
assembly and sliding the brackets apart to the required width
and retightening the four (4) screws.
FRESH AIR INTAKE
All units are built with fresh air inlet slots punched in the
service panel.
If the unit is equipped with a fresh air damper assembly, the
assembly is shipped already attached to the unit. The
damper blade is locked in the closed position. To allow the
damper to operate, the maximum and minimum blade
position stops must be installed. See Figure 2.
Manual 2100-277
Page 8
All capacity, efficiency and cost of operation information as
required for Department of Energy "Energyguide" Fact
Sheets is based upon the fresh air blank-off plate in place
and is recommended for maximum energy efficiency.
The blank-off plate is available upon request from the
factory and is installed in place of the fresh air damper
shipped with each unit.
CONDENSATE DRAIN
A plastic drain hose extends from the drain pan at the top of
the unit down to the unit base. There are openings in the
unit base for the drain hose to pass through. In the event
the drain hose is connected to a drain system of some type,
it must be an open or vented type system to assure proper
drainage.
FIGURE 2
FRESH AIR DAMPER
BLADE IS LOCKED
CLOSED FOR
SHIPPING.
MIS-938
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