Instructions / Assembly

The first 3 feet (36 inches) of the supply air plenum and ductwork
must be constructed of sheet metal as required by NFPA 90B. The
supply air plenum or duct must also have a solid sheet metal
bottom directly under the unit with no openings, registers or
flexible air ducts located in it.
If flexible supply air ducts are used, they can only be located in
the vertical walls of the rectangular plenum and must be a
minimum of 6 inches from the solid bottom. The metal plenum of
the duct may be connected to the combustible floor base, if not, it
must be connected to the unit supply duct that is exposed to the
supply air opening from the downflow unit. Exposing combustible
(non-metal) material to the supply opening of a downflow unit
can cause a fire, resulting in property damage, personal injury, or
death.
Exception warning to downflow:
Installations on a concrete floor slab, with supply air plenum and
ductwork completely encased, must use at least 2 inches of
concrete (See NFPA 90A).
The unit can be positioned for bottom return air in the upflow position, left and right return in the
horizontal position, or top return in downflow position.
This Air Handler provides the flexibility for installation in any upflow, downflow, or horizontal
application. The direct drive motors provide a selection of air volumes to match any application. The
3-Speed motors can be adjusted to provide air flow to meet desired applications.
Top and side power control wiring, and accessible screw terminals for control wiring, all combine to
make the installation easy, and minimize installation cost. Please contact your local distributor (Refer to
Fig.1).
The appliance is only intended to supply conditioned air to one room.
INDOOR UNIT
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2 GENERAL