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2000 Fire Door-Fan Manual updated 2002-05-28 Page 35 of 58
Flex duct installation for ceiling neutralization
Position the flex-duct case under the ceiling tile in
which it will be installed and open the case. There
must be minimal obstructions to airflow above and
around the ceiling tile selected.
Insert the flex-duct into the T-bar ceiling
framework. The square sheet goes in next.
. Hook the cuff under the lower foot of the blower
and over the nylon block on top of the blower
flange.
Secure the Velcro cinch strap on the flex-duct
blower cuff.