Labconco Coated Steel, Fiberglass and PVC Blowers 7183200 - Manual (Page 13)

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Chapter 3: Getting Started
Removing these fasteners allows you to rotate the housing
to one of the other desired outlet positions. Then insert the
8 fasteners and secure the blower housing in that specific
position.
3. Reinstall the upper weathercover panel and you are ready
for operation.
CAUTION: Blower 7071900 must be installed
with outlet positioned for upward discharge.
This will ensure that the integral back draft
damper assembly will work properly. The
dampers close by gravity when the blower is
turned off and the blower needs to be in the
proper orientation for this to occur.
Install the Exhaust Run with
Vibration Dampers
Rubber isolation sleeves should be used in your exhaust duct run
prior to entering the blower inlet. These isolation sleeves dampen
vibration that is being generated by the blower and decrease noise
level at the fume hood. See the flexible duct connections listed in
Chapter 7.
Connect to the Blower Inlet for
Coated Steel Blowers
Coated Steel Blowers model numbers 7068000 through 7068700,
feature a 10-7/8" ID by 1-1/2" wide circular inlet ring. This inlet
ring is suitable for use with 10-inch diameter PVC ductwork. The
PVC ductwork itself will fit inside the inlet ring and should be
fastened by sheet metal screws through the inlet ring. A silicone
sealant should also be used to seal between the ductwork and the
blower inlet ring to prevent any air or moisture leakage.
Coated Steel Blowers, model numbers 7068800 through 7069700,
feature a 12-1/4" OD by 1-1/2" wide inlet ring, which is suitable
for use with 12-inch diameter PVC ductwork. The 12-inch
diameter PVC ductwork will fit over the inlet ring on the blower
and should be fastened in position by sheet metal screws into the
metal ring.
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CS