1
/
2
in. UL Classified
Gypsum Wallboard (see
UL Rated Wall Design
for Additional Details)
2
1
/
2
in. Min.
Stud or Runner
Damper
Sleeve
Angle Fastener
(see Note 2)
1
1
⁄
2
in. x 2
1
⁄
2
in.
16 ga. angle
Figure #2: 1 Hour Wall Rating
1
/
2
in. UL Classified
Gypsum Wallboard (see
UL Rated Wall Design
for Additional Details)
2
1
/
2
in. Min.
Stud or Runner
Damper
Sleeve
Angle Fastener
(see Note 2)
1
1
⁄
2
in. x 2
1
⁄
2
in. 16
ga. angle
Figure #3: 2 Hour Wall Rating
Figure #1: Opening Preparation Detail (double vertical
studs are not required for openings 36 in. x
36 in. [914mm x 914mm] or smaller)
12 in.
24 in. o.c.
Maximum
Floor Runner
2 in.
Ceiling Runner
2 Panhead
Screws
24 in. o.c.
Maximum
(metal studs)
24 in. o.c.
Maximum
(metal studs)
16 in. o.c.
Maximum
(wood studs)
16 in. o.c.
Maximum
(wood studs)
2 in.
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.
• Retaining angles must be a minimum of 16 gauge (1.5mm)
steel and have a minimum of 1
1
/
2
in. x 2
1
/
2
in. legs
(38mm x 63mm).
• Retaining angles must be attached to the sleeve using
one of the methods shown below:
• tack or spot welds
• #10 sheet metal screws and bolts
• Retaining 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
3
/
4
in. (44mm)
• 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)
Copyright © 2008 Greenheck Fan Corporation
462102 Wood Stud Supplement
Rev. 4 March 2008
®
Part #462102
INSTALLATION INSTRUCTION SUPPLEMENT
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.
Wood Stud Framing for Fire Dampers in Drywall
Partitions Utilizing One Retaining Angle
FD & DFD Series
1
1
/
2
Hour Curtain Fire Dampers
and
FSD & SSFSD Series
1
1
/
2
Hour Combination Fire Smoke Dampers
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
