216
IN-TRACK BAFFLES
Filter sections are shipped with adjustable in-track baffles. When
installed properly as shown in Fig. 201 and 202, the baffles close
off empty space in the track preventing air from bypassing the fil
-
ters. Remove the baffles to install filter elements, and replace the
adjustable baffles after the filters are in place. The adjustable baf
-
fles should be spread far enough apart to ensure slight compres
-
sion in the foam gasket when closing the section door. The Mc
-
Master-Carr foam gasket part number is 8694K51.
To minimize bypass through the blank-off plate adjustment slots,
use foil tape to cover the slot openings.
FLAT FILTERS
The flat filter sections come in 4-in. or 6-in. filter tracks. The track
size is a selectable option in
AHU
Builder
®
for sectional views of each size.
Depending on the filter size (2-in., 4-in., or 6-in.) the T-bar can be
repositioned to accept the available filter.
ANGLE FILTERS
Angle filter sections accommodate 2-in. or 4-in. thick filters. The
section as shipped accepts 2-in. filters. Remove angle spacer in
each track to provide the space required to accommodate 4-in. fil
-
ters. Refer to Fig. 203 for details.
HEPA FILTERS
The Puro Frame (available in sizes 03-61 only), HEPA holding
frame will accommodate 12-in. deep filters. HEPA filter sections
used in blow-thru applications are loaded from the front, through
the access door or removable panel. The HEPA filters are retained
in the frame with retaining brackets (see Fig. 203 and 204). RTV
sealant should be used to seal between the filter frame and the fil
-
ter media’s neoprene gasket to ensure a leaktight installation. Re
-
fer to Fig. 203 for details. Downstream edge of frame to frame and
frame to baffle shall be sealed with RTV sealant.
Filter arrangements are shown in Fig. 206-210.
Fig. 201 —
2-in. Track Assembly (4-in. Track)
Fig. 202 —
6-in. Track Assembly
FILTER
FILTER
3/4” x 3/4”
FOAM GASKET
ADJUSTABLE IN-TRACK
BAFFLE
Fig. 203 —
In-Track Baffle for Flat, Angle and
Sideloading Bag/Cartridge Filter Sections
a39-2268
