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Refer to:
'Installation Instructions for FD, DFD, SSFD, & KFD Models'
(Part #452763)
or
'Installation Instructions for FSD-XXX, DFD-XXX, & CFSD-XXX,
SSFSD-XXX Series Fire & Combination Fire Smoke Dampers'
(Part #461336)
or
'Installation Instructions for FD & DFD 150X Series Curtain Fire
Dampers' (Part #453946) for additional details.
Notes
1. Gypsum panels must be screwed 12 in. (305mm) on center
maximum to all stud and runner flanges surrounding
opening. (See Figure 1 for Opening Preparation Details).
2. Fire damper and sleeve assemblies 80 in. W x 50 in. H
(2032mm x 1270mm), 50 in. W x 80 in. H
(1270mm x 2032mm), or 40 in. W x 100 in. H
(1016mm x 2540mm) and smaller only require retaining
angles on one side of the partition. (See Figure 2 and
Figure 3). Retaining angles must be attached to the
sleeve and the partition. Larger damper assemblies require
retaining angles on both sides of the partition. Retaining
angles must be attached to the sleeve.
• R etaining angles must be a minimum of 16 gauge (1.5mm)
steel and have a minimum of 1
(38mm x 63mm).
• R etaining angles must be attached to the sleeve using
one of the methods shown below:
• tack or spot welds
• #10 sheet metal screws and bolts
• R etaining angles must be attached to the partition using
drywall screws of a length such that the screw engages
the stud by a minimum of 1
• A minimum of two connections per side, top, and bottom,
12 in. (305mm) O.C. maximum for openings of
48 in. W x 36 in. H (1219mm x 914mm) and less, and
6 in. (152mm) O.C. for openings 80 in. W x 50 in. H
(2032mm x 1270mm), 50 in. W x 80 in. H,
(1270mm x 2032mm) and 40 in. W x 100 in. H
(1016mm x 2540mm)or less.
• Retaining angles must overlap the partition a minimum of
1 in. (25mm)
Damper
Sleeve
Figure #2: 1 Hour Wall Rating
1
/
in. x 2
1
/
in. legs
2
2
/
in. (44mm)
3
4
2
1
/
in. Min.
2
Stud or Runner
/
in. UL Classified
1
2
Gypsum Wallboard (see
UL Rated Wall Design
for Additional Details)
Angle Fastener
(see Note 2)
⁄
⁄
1
1
in. x 2
1
in.
2
2
16 ga. angle
INSTALLATION INSTRUCTION SUPPLEMENT
Wood Stud Framing for Fire Dampers in Drywall
Partitions Utilizing One Retaining Angle
FD & DFD Series
1
/
Hour Curtain Fire Dampers and
1
2
FSD & SSFSD Series
1
/
Hour Combination Fire Smoke Dampers
1
2
Vertical Mount
"UL CLASSIFIED
(see complete marking on product)"
"UL CLASSIFIED to Canadian safety standards
(see complete marking on product)"
Standards UL 555 & 555S
Classifications Filed at UL under Listing #R13317
24 in. o.c.
Maximum
Figure #1: Opening Preparation Detail (double vertical
Damper
Sleeve
Figure #3: 2 Hour Wall Rating
24 in. o.c.
24 in. o.c.
Maximum
Maximum
(metal studs)
(metal studs)
12 in.
2 Panhead
Screws
16 in. o.c.
16 in. o.c.
Maximum
Maximum
(wood studs)
(wood studs)
Floor Runner
studs are not required for openings 36 in. x
36 in. [914mm x 914mm] or smaller)
2
/
in. Min.
1
2
Stud or Runner
1
/
Gypsum Wallboard (see
UL Rated Wall Design
for Additional Details)
Angle Fastener
(see Note 2)
⁄
⁄
1
in. x 2
in. 16
1
1
2
2
ga. angle
Copyright © 2008 Greenheck Fan Corporation
462102 Wood Stud Supplement
Part #462102
Ceiling Runner
2 in.
2 in.
in. UL Classified
2
Rev. 4 March 2008
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