AAF International SAH - Manual (Page 7)

7
3.3 Typical SAH Housing Details
Insulated double-wall
after-filter and final
filter access door
Filter bank side-seal gasket
Cassette support track,
sealing face
Track support post Door latch
Optional channel base
2" prefilter track
Insulated double-wall
prefilter and gas-phase
filter access door
Air inlet face Cassette support track,
non-sealing face
Typical insulated
double-wall panel
Final filter track
Air outlet face
2" After-filter track
A typical Side Access Housing Model
SAH-202-2P-MD-2P-6F is shown.
The Side Access Housing is uniquely designed to accommodate and
securely seal AAF’s gas-phase chemical filter cassettes. Each housing
incorporates AAF’s patent-pending filter sealing system to ensure that
the contaminated air passes through the filter and does not by-pass
around the filters. Typical details of the tracks are shown in the following
illustrations. In some instances, depending on the equipment supplied
and the filters required, minor track details may differ from those shown.
2" Prefilter Track Cassette support track, non-sealing face
Cassette support track, sealing face.
2" After-filter and final filter track. The final
filter track shown is designed to accept a
typical 1" nominal header style filter.
Track connection detail at support post.
This detail shows AAF’s “quick release”
track installation method. Accurately
located support post holes ensure high
tolerance track spacing. Note that the
track connection is completely isolated
from the filter sealing surface and cannot
interfere with filter installation.
Galvanized steel (or similar) formed track Extruded
aluminum
track
Plastic strips
provide low
friction cassette
bearing surface
Cassette locator bar
Plastic strips provide low
friction cassette bearing surface
Track support hardware
Hollow core face sealing gasket
Track support post
Extruded aluminum track
2" After-filter track
Hollow core gasket Final filter track
Extruded aluminum track