Donaldson Company, Inc.
38
Plenum Silencer, TRB
1. Apply sealant and attach the bottom panel to the
collector as described on the assembly drawing
shipped with the silencer. Use a combination of
hardware removed from the unit and hardware
supplied.
2. Install the fan and motor assembly as described
in the Power Pack section and the assembly
drawing.
3. Route rigid or flexible conduit from the junction
box on the motor to the outside wall of the
silencer to house wiring.
4. Install the top of the silencer and attach the
silencer to the base using the supplied hardware.
5. Loosen the wing nut on the damper and adjust
to approximately 50% closed.
Abrasion-Resistant Inlet Collar
1. Remove the units front cover plate. Remove
excess sealant from opening.
2. Apply 1/4-in diameter rope-type sealant around
the opening toward the inside edge of the bolt
pattern.
3. Align the holes on the inlet collar with the holes
in the unit and secure using 3/8-16 x 1-in bolts
and flat washers supplied.
Abrasion-Resistant Inlet Collar
Top-Mount Silencer and Damper Installation
WMPIRGIV