Greenheck FD150X Installation, Operation And Maintenance Manual page 7

3. FRAMING OF WALL OPENING
Form a wall opening 1/8 in. to 1/4 in. larger than
the OD of the fire damper's extended frame
(sleeve) using the same metal studs and
techniques required by the wall design per the UL
Fire Resistance Directory. Open side of the steel
stud channels shall face the fire damper and
encompass the damper's retaining bar.
4. APPLY WALLBOARD AFTER DAMPER
INSTALLATION
After damper is installed, wallboard shall be
applied to steel stud framework in the manner
required by the wall design per the UL Fire
Resistance Directory listing. Around the damper
perimeter use a minimum of 2 connections per
side, spaced 12 in. (max.) and located a maximum
of 2 in. from each corner. No additional retaining
angles are required to complete the installation.
5. CONNECTING DUCTS TO THE FIRE DAMPER
All duct connections to FD & DFD 150X series
extended frame dampers must be "breakaway"
type connections. All connections shown on page
6 are considered breakaway. Factory furnished
duct collars on types R, CR, & CO fire dampers are
also considered breakaway.
Retaining
Bar
Top Cross-Section View
Due to continuing research, Greenheck reserves the right to change specifications without notice.
5
3
GREENHECK
P.O. BOX 410 SCHOFIELD, WISCONSIN 54476-0410
www.greenheck.com
Item
1 FD150X Fire Damper with SSC Option
Steel Stud Wall (See UL Fire Resistance
2
Directory for specific details)
3 Steel Stud Frame around opening in wall
4 Duct Connection (See Section 6)
Wallboard (See UL Fire Resistance Directory
5
for specific details)
Fasteners (See UL Fire Resistance Directory
6
and Section 5)
2
3
1
4
Side Cross-Section View of
Damper in Wall
PH. 715-359-6171
Description
3
3
6
1
4
2
IOM-FD/DFD-150X Series
Copyright © 2004 Greenheck Fan Corp.
Rev. 9 April 2004