11
Mounting Options
FILTERED SUPPLY FAN in Wall Housing with Filter
Bank, Gravity Damper and Weatherhood
Note: This chart is for manual
calculations only. CAPS has
filter losses built into the
selection tool when the
filtered housing option is
selected.
Static Pressure
Pressure Loss
CFM x 1000
20"
Filtered supply wall
housings are available in
six sizes for fans ranging
from size 24 to 54 inches
(610 to 1372 mm). They are
designed with the draw-
thru concept to achieve
the highest filter and fan
efficiencies.
Standard construction is
galvanized steel (painted
steel optional). Mounting
flanges are factory
installed for either flush
exterior or flush interior
mounting. Permanent
2-inch (51 mm) washable
filters are accessed
through a bolted panel
and can be easily
removed for cleaning.
All accessory items
available with the
standard wall housing can
be used with the filtered
supply wall housing.
Size Filter Size &
Quantity
24 (4) 23
1
⁄4 (591) x 16
1
⁄4 (413)
30 (4) 24
5
⁄8 (625) x 19
1
⁄4 (489)
36 (6) 23
1
⁄4 (591) x 22
1
⁄8 (562)
42 (6) 24
1
⁄8 (613) x 25
1
⁄8 (638)
48 (12) 23
1
⁄4 (591) x 18
3
⁄4 (476)
54 (12) 23
1
⁄4 (591) x 20
3
⁄4 (527)
Filters are 2 inch (51 mm) nominal thickness.
Above filter sizes are actual dimensions.
All dimensions given in inches (mm).
Filtered Supply
Wall Housing Mounting
Diffusers
- Wall Housing Mounted
- Manual Operator
Diffusers are constructed
with heavy-gauge galvanized
steel frames, blades and
prepunched mounting flanges.
They are designed to mount
to the interior end of the wall
housing when used in the
supply configuration.
Manual quadrants set the
angle of the blades to deflect
air in 1, 2 or 4 directions.
Closure Angles
An extra set of mounting
flanges are available for field
installation to close off the
interior wall opening for a
finished appearance.
Wall
Wall
INTERIOR EXTERIOR
Closure Angles
Mounting
Angles
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