Installation manual

Installation
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2.6.3 Ducted Application Installation
Duct flanges are supplied on the blower outlets. Follow the SWACNA-Duct Construction Standard for
single-, dual-, or triple-blower systems. Do not run ductwork off the perimeter flange on the top of the
unit. This flange is for positioning and attaching the optional air discharge plenum with grill. Attach-
ing a duct to this flange may reduce airflow to inadequate levels.
Figure 10 Ducting configurations
2.6.4 Plenum Installation
When installing the plenum to the top of system, secure the plenum to the unit flange using sheet
metal screws.
2.6.5 Filter Box Installation
When installing the filter box to the back of the unit, secure the box to the unit using self tapping
sheet metal screws. Seal around all edges with a silicone sealant to prevent air leakage.
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1. Straight section of duct off of unit to be 1.5 to 2.5 times the
longest blower dimension.
2. Typical ducting shown; may run to either side.
* Follow standard practices on all duct work.
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DPN000533 Rev0
DISCONTINUED
PRODUC T