Damper and Silencer, TBI (WSO Unpowered 25-4 and 25-6)
Top Mount
1. Install the blower and motor as shown below.
2. Attach the damper to the blower exhaust outlet using the hardware supplied.
3.
Attach the flange to the damper using the bolts, washers, and hex nuts supplied.
4.
Apply sealant to the flange and attach silencer to flange. Tighten all hardware.
5. Loosely assemble the silencer’s support brackets.
Support Brackets, Top Mount
a. Align the pivoting support brackets to extend a minimum of 30-in from the collector and mark the drill locations.
Thoroughly clean any collected coolants or material from the collector prior to drilling to reduce the risk of
combustion. Failure to comply may result in personal injury and/or property damage.
b. Drill pilot holes with a 0.339-in bit.
c. Secure brackets using 3/8-in thread-forming bolts.
d.
If a gap exists between the silencer and the damper, install the panel filler using the screws provided.
Top-Mount Silencer and Damper Installation, WSO Unpowered 25-6 shown
fan blower motor
damper
silencer
pivoting bracket
WSO Mist Collector, WSO 25-4 and 25-6
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