Part number 469692
Fire Resistant Ventilated Duct Assembly for Fire Dampers (FD and DFD
series) and Combination Fire Smoke Dampers (CFSD, OFSD, FSD series)
Refer to:
These instructions are for installing vertical mount fire
‘Installation Instructions for FD, DFD, SSFD, & KFD Series”
(Part number 452763)
or
“Installation Instructions for FSD-XXX, DFD-XXX, SSFSD-XXX &
CFSD-XXX Series Fire & Combination Fire Smoke Dampers’
(Part number 461336)
and combination fire smoke dampers in a fire resistant
ventilation duct (UL Ventilation duct Assembly HNLJ.
V-5)
1) The damper sleeve must slip inside the fire resistant
duct spool. Damper sleeve assembly will be 1/4 in.
(6mm), 1/2 in. (13mm) maximum, smaller than duct
spool size.
or
“Installation Instructions for FD & DFD 150X Series Curtain Fire
Dampers’ (Part number 453946)
or
“Installation Instructions for OFSD, ODFD, OFD, AND OSSFD
Series Dampers’ (Part number 461337)
or
‘Installation Instructions for FSD-3XXXV Series Dampers’
(Part number 461666) for additional details
2) Damper is to be supplied with factory mounted
sleeve. Sleeve gauge will be minimum of 16 ga.
(1.5mm) for dampers up to 36 in. wide x 24 in.
(914mm x 610mm) high and 14 ga. (2mm) for
dampers exceeding 36 in. W x 24 in. high
(914mm x 610mm).
3) Mounting angles need to be the following sizes:
• 1 1/2 in. x 1 1/2 in. x 1/4 in. up to 24 in.
(38mm x 38mm x 6mm up to 610mm)
• 2 in. x 2 in. x 1/4 in. over 24 in. up to 32 in.
(51mm x 51mm x 6mm over 610mm up to 813mm)
• 2 1/2 in. x 2 1/2 in. x 1/4 in. over 32 in. up to 40 in.
(64mm x 64mm x 6mm over 813mm up to 1016mm)
• 3 in. x 3 in. x 1/4 in. above 40 in.
(76mm x 76mm x 6mm above 1016mm)
4) Mounting angle fasteners:
• #10 bolts or screws
• 3/16 in. (4.7mm) steel rivets
• 1/2 in. (13mm) long welds
5) Mounting Angle Fasteners Spacing:
• Mounting angles to dampers, space fasteners on
6 in. (152mm) on center.
• Mounting angle to spool flange, space fasteners
on 12 in. (305mm) on center.
• Minimum 2 fasteners per side
6) Hanger rods:
3/8” threaded rod anchored to the floor above and
attached to the mounting angles through hole in the
angles and secured with hex nut and washer (items
5 & 6). Anchor to masonry per assembly No. V-5.
END VIEW
7) Duct to Damper Sleeve Connection:
See the fire damper or the combination fire smoke
installation instructions for breakaway, flanged, or
non-breakaway connections.
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