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tubular steel corner posts at the bottom of the unit.
WARNING: Improper lifting or moving of the equipment may result in
damage to the decorative doors, panels or frame members.
Locating the Unit
Verify that the floor is level, solid and appropriate construction to support the unit. When
installing the unit, enough space must be allowed for airflow clearance, wiring, plumbing and
service access. It is recommended that each side and front have a clearance of at least 36”
(914mm) to allow the doors to swing open and for servicing the unit.
The doors on some sides may not require as much service clearance. Refer to the specific unit
component breakdown drawings for assistance. Rear clearance is not required, but 1” to 2” (25
to 50mm) of clearance is suggested.
For the best air distribution, the unit should be centered against the longest wall, distributing
the cold air as close to heat load as possible, unless the unit is ducted. The unit should not be
placed near any corner of the room or at the end of a long, narrow room. Install the units as
close as possible to the largest heat load. Multiple units should be evenly spaced, as far apart
as possible. It is recommended to install an under-floor water detection system.
NOTICE: Condensation formation and frequent humidifier flushing are
normal functions of this equipment. Proper drain connections must be
made to ensure proper removal. Unit will require water connections for
condensate removal and possibly for humidifier makeup water, chilled
water and/or hot water. Installation of units above equipment that could
sustain water damage should be avoided.
Downflow Units
Downflow units will typically sit on an elevated flooring system known as a raised floor. The
unit dis- charges air downward which pressurizes the raised floor and channels upward
through perforated floor tiles. Location and quantity of perforated tiles will dictate proper air
distribution. If the raised floor is strong enough to support the unit and local codes permit, the
unit can be placed directly on top with cutouts made for the discharge openings.
Verify that the raised floor has been properly sized for the unit’s airflow and the room is free of
airflow restrictions. Perforated floor tiles in the raised floor should ensure minimal pressure
loss. The raised floor must provide a minimum of 12” (305 mm) clearance. Ensure that there is
adequate clearance above the unit for service, such as replacing filters. Optional plenums are
available for downflow unit ducting.
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