INSTALLATION INSTRUCTION BOOKLET
FOR CURTAIN FIRE DAMPERS
Instructions included in this booklet:
IOM #
Description
Page(s)
452763
FD, DFD, SSFD & KFD Models
453946
FD & DFD 150X Models
10–17
462721
DFDR-XXX, SSDFDR-XXX, FDR-XXX, and SSFDR-XXX Models
18–22
461337
OFSD-XXX, ODFD-XXX, OFD-XXX and OSSFD-XXX Series
23–34
474015
Single Side Retaining Angle 35-37
2–9
KIT # 826251
CURTAIN FIRE DAMPERS
DFD/FD/OFD/ODFD/DFDR/FDR
Return to Table of Contents
Document Number 452763
FD, DFD, SSFD, SSDFD, & KFD Models
11/2 and 3 Hour Curtain Fire Dampers
Vertical and Horizontal Mount
®
Installation, Operation and Maintenance Instructions
FD, DFD, SSFD, & KFD models are intended for installation in
accordance with fire damper requirements established by:
National Fire Protection Association
NFPA Standard 80, 90A, & 101
IBC International Building Code
CSFM California State Fire Marshal
Fire Damper Listing (#3225-0981:102)
New York City (BSA/MEA listing #260-91-M)
“UL CLASSIFIED (see complete marking on product)”
“UL CLASSIFIED to Canadian safety standards (see complete
marking on product)”
UL Standard 555 (Listing #R13317)
SAFETY WARNING:
Installation Supplements
Improper installation, adjustment, alteration,
service or maintenance can cause property damage,
injury or death. Read the installation, operating,
and maintenance instructions thoroughly before
installing or servicing this equipment.
Refer to the appropriate Greenheck installation supplements
for special requirements:
• Close Indicator Switch
• Concrete Floor with Steel Deck
• Drive Slip Breakaway Connection
• Fire Resistant Ventilated Duct Assembly
• Firestop Material
• Greenheck Test Switch
• Grille Installation
• Metal Stud in Shaftwall
• Quick Connect Breakaway Connections
• Sealant Supplement
• Single Side Retaining Angle
• Single 3-Sided Retaining Angle - Vertical Mount
• Sleeve Extension
• Support Mullions
Note: Refer to Greenheck IOM, Part #461335, for CFSD
models to be installed in corridor ceiling applications.
WARRANTY
Greenheck warrants this equipment to be free from
defects in material and workmanship for a period of one
year from the shipment date. Any units or parts which
prove to be defective during the warranty period will be
repaired or replaced at our option. Greenheck shall not
be liable for damages resulting from misapplication or
misuse of its products. Greenheck will not be responsible
for any installation or removal costs. Greenheck will not
be responsible for any service work or backcharges
without prior written authorization.
These instructions apply to 11/2 and 3 hour rated fire dampers
mounted (blades must be horizontal) in masonry, block or
stud walls and concrete floors. Specific requirements in these
instructions are mandatory. These instructions meet the
requirements of UL 555. Installation shall comply with the
requirements of NFPA 90A Standard for the Installation of
Air Conditioning and Ventilating Systems. UL listing R13317,
California State Fire Marshal listings 3225-0981:102, and
New York City BSA/MEA listing 260-91-M apply to these
dampers.
Note: Fire dampers are manufactured and labelled for either
vertical or horizontal installation. The dampers must be
installed in accordance with the labelling.
RECEIVING AND HANDLING
Upon receiving dampers, check for both obvious and
hidden damage. If damage is found, record all necessary
information on the bill of lading and file a claim with
the final carrier. Check to be sure that all parts of the
shipment, including accessories, are accounted for.
Dampers must be kept dry and clean. Indoor storage
and protection from dirt, dust and the weather is highly
recommended. Do not store at temperatures in excess of
100°F (38°C).
Due to continuing research, Greenheck reserves the right to change specifications without notice.
This manual is the property of the owner, and is required for future maintenance. Please leave it with the owner when the job is complete.
2
Table of Contents
Pre-Installation Guidelines..............................................................................................................................................................3
Installation....................................................................................................................................................................................3-9
• Clearances Required Between Fire Damper Sleeves and Wall/Floor Openings............................................................3
• Sleeve Length and Wall Thickness............................................................... ..............................................................4-5
• Duct to Sleeve Connections.......................................................................... .................................................................6
• Securing the Damper/Sleeve Assembly to Wall and Floor Openings........................................................ .....................6
• Installing Multiple Damper Section Assemblies.............................................................................................................7
• Recommended Preparation of Openings in Wood and Metal Stud Walls............................................................ ...........9
• Breakaway Connections..................................................................... .........................................................................7-8
Pre-Installation Guidelines
The basic intent of a proper installation is to secure the
fire damper in, not to, the opening in such a manner as
to prevent distortion and disruption of damper operation.
This is accomplished by allowing the fire damper in rated
separation openings to expand and for the connecting
duct to separate in the event of the collapse of the hanging
system. The following items will aid in completing the
damper installation in a timely and effective manner.
1)Check the schedules for proper damper locations
within the building. Visually inspect the damper for
damage and verify that the fusible link is in place or
has not activated. Never install a fire damper without
the proper UL approved fusible link in place. If damper
is furnished with fusible link, visually inspect the link
to verify its not missing or broken. Replace link as
necessary.
2)Lift or handle damper using sleeve or frame. Do not lift
damper using blades.
3)Damper has label on outside of sleeve indicating a
‘No Screw’ area. Do not install screws into this area as
screws may interfere with unexposed blade linkage and
prevent damper blades from opening and/or closing.
4)Damper has label indicating position of damper
and sleeve assembly in the wall. Install accordingly
to comply with manufacturer’s appropriate UL
Classification file number.
5)Damper must be installed into duct or opening square
and free of twist or other misalignment. Damper
must not be squeezed or stretched into duct or
opening. Out of square, racked, twisted or misaligned
1.CLEARANCES REQUIRED BETWEEN FIRE
DAMPER SLEEVES AND WALL/FLOOR
OPENINGS
Fire damper and sleeve assemblies expand during
periods of intense heat. Therefore it is essential that
openings in walls or floors be larger than the fire damper
and sleeve assembly to allow for this expansion.
Minimum clearances required between the outside of fire
damper sleeve assemblies and wall/floor openings are:
• Galvanized steel fire dampers and sleeves: 1/8 in.
(3mm) per foot of damper width and 1/8 in. (3mm) per
foot height with a minimum clearance of 1/4 in. (6mm)
Recommended clearances, for width and/or height
dimensions of:
1) 48 in. (1219mm) or less: 1/2 in. (13mm) clearance
2) More than 48 in. (1219mm) and 96 in. (2438mm)
or less: 1 in. (25mm) clearance
installations can cause excessive leakage and/or torque
requirements to exceed damper/actuator design.
6)Damper must be kept clean and protected from dirt,
dust and other foreign materials prior to and after
installation. Examples of such foreign materials include
but are not limited to:
a) Mortar dust
b) Drywall dust
c) Firesafing materials
d) Wall texture
e) Paint overspray
7)Damper should be sufficiently covered as to prevent
overspray if wall texturing or spray painting will be
performed within 5 feet of the damper. Excessive dirt
or foreign material deposits on damper can cause
excessive leakage and/or torque requirements to exceed
damper/actuator design.
8)Caulking is not necessary, nor is it allowed, between the
damper sleeve and the wall or floor opening (annular
space). However, caulking may be applied to the
retaining angles.
9)ACCESS: Suitable access (such that fusible links can
be maintained, etc.) must be provided for damper
inspection and servicing. Where it is not possible to
achieve sufficient size access, it will be necessary to
install a removable section of duct. (Refer to NFPA 90A).
10)The Code Authority Having Jurisdiction (AHJ) must
evaluate and provide approval of final installation where
variations to these instructions are necessary.
3) More than 96 in. (2438mm): 11/2 in. (38mm)
clearance
• Stainless steel fire dampers and stainless steel or
galvanized sleeves: 3/16 in. (4.8mm) per foot of damper
width and height with a minimum clearance of 1/4 in.
(6mm), maximum of 2 in. (51mm). Recommended
clearances, for width and/or height dimensions of:
1) 48 in. (1219mm) or less: 3/4 in. (19mm) clearance
2) More than 48 in. (1219mm) and 96 in. (2438mm) or
less: 1 1/2 in. (38mm) clearance
3) More than 96 in. (2438mm): 2 in. (51mm)
clearance
These are total clearances (ignoring fastener heads)
and do not need to be equally spaced around the
damper. Refer to Section 4 and Figure 6 for additional
installation considerations.
3
Vertical mount without
factory mounted sleeve
Example: A 12 in. x 12 in. (305mm x 305mm) damper would require a minimum clearance of 1/4 in. (6mm) on width
and 1/4 in. (6mm) on height
A 48 in. x 12 in. (1219mm x 305mm) damper would
require a minimum clearance of 1/2 in. (13mm) on
width and 1/4 in. (6mm) on height.
1/4 in. minimum
total clearance
(See Section 1)
2.GAUGES AND LENGTHS OF FIRE DAMPER
SLEEVES
Wall or floor
All fire dampers must be installed in a steel sleeve of
the required gauge and length. See Table 1 for required
minimum sleeve gauges. Maximum sleeve thickness is
10 gauge (3.5mm). Sleeve inside dimensions must equal
damper outside dimensions.
Sleeves shall extend a maximum of 6 in. (152mm)
beyond the wall or floor opening on each side (see
Figure 1). When an access door is incorporated as a
part of sleeve, the sleeve may extend a maximum of
16 in. (406mm) beyond the wall or floor opening on the
access door side.
See
Section 2
See
Section 2
Mounting
(See Para
Damper
1
t
(S
Duct
Sleeve
(See Sections 2 & 3)
Retaining Angles
(See Section 4)
Type A
Sleeve Gauge
Duct Dimension
Type of Duct
to Sleeve
Connection
Permitted
14 ga. (0.075 in.)
- 10 ga. (0.138
in.)
[2mm - 3.5mm]
All duct sizes
Rigid or
Breakaway
16 ga. (0.060 in.)
[1.5mm]
36 in. (914mm) max. width
24 in. (610mm) max. width
24 in. (610mm) diameter
Rigid or
Breakaway
16 ga. (0.060 in.)
[1.5mm]
All duct sizes
18 ga. (0.048 in.)
[1.2mm]
85 in. (2159mm) wide and
over
20 ga. (0.036 in.)
[0.9mm]
55 in. - 84 in. wide
(1397mm - 2134mm)
22 ga. (.030 in.)
[0.76mm]
31 in. - 54 in. wide
(787mm - 1372mm)
24 ga. (0.024)
[0.6mm]
13 in. - 30 in. wide
(330mm - 762mm)
26 ga. (0.018 in.)
[0.46mm]
12 in. wide and under
(305mm)
Wall or floor
Retaining angle leg
shall not exceed 7 in.
(178mm)
Sleeve
Damper
Duct
Type B
Breakaway only
Wall or floor
On types R & CR factory
furnished duct collar
qualifies as breakaway
conneciton (See Section 5)
Damper
Sleeve thickness must not be less than the gauge of the connecting duct.
UL Standard 555 requires all ducts to terminate at fire damper sleeves.
Table 1: Minimum sleeve thickness for fire dampers.
Duct
Sleeve
Type C, CO, CR & R
When dampers installed vertically, the
blade stack must be on the top..
4
Figure 1
Horizontal mount without factory
mounted sleeve
1/4mount
in. minimum
Vertical
with factory
total clearance
mounted
sleeve
Horizontal mount with factory
mounted sleeve
1/4 in. minimum
total clearance
Wall or Floor
Maximum
6 in.
Retaining Angles
(See Section 4)
Maximum
6 in.
See Section 2
“K” side
See Section 2
Maximum
in.Floor
Wall6or
Retaining Angles
(See Section 4)
Maximum
6 in.
See Section 2
“K” side
Wall or
Floor
Sleeve
(see sections 2 & 3)
Damper
Duct
Duct
See Section 2
1/4 in. minimum
total clearance
Wall or
Floor
Sleeve
(see sections 2 & 3)
Damper
Duct
Damper
Duct
Damper
Retaining
Angles
Retaining
Angles
(See (See
Section
3) 3)
Section
Type A
Type AA
Type
Type A
Wall or Floor
Wall or Floor
Wall or Floor
Maximum
6 in.
Retaining Angles
(See Section 4)
Maximum
6 in.
Damper
Damper
See Section 2
“K” side
Wall or
Floor
Retaining angles
(See Section 4)
See Section 2
“K” side
Sleeve
(see sections 2 & 3)
Wall or
Floor
See Section 2
Damper
Duct
Duct
Duct
Sleeve
(See Sections 2 & 3)
See Section 2
Damper
Damper
Type B
Retaining Angles
Duct
(See Section 3)
Type B
Type A
Duct
On types R, CO & CR factory
Type
furnished duct collar
qualifies as breakaway
connection.
Type B
Damper
B
Wall or Floor
Wall or Floor
Damper
On types R, CO & CR factory
furnished duct collar
qualifies as breakaway
connection.
Damper
Duct
Type B
Type B2
Wall or
floor
Wall or floor
Type B2
Sleeve
Type C, CO, CR, & R
“K” side
Damper
Wall or Floor
Duct
Duct
Damper
Damper
Type B2
Sleeve
Wall or floor
Sleeve
Sleeve
Wall or floor
Wall or floor
Duct
Type B2
Damper
Duct
On types R, CO & CR factory
furnished duct collar
qualifies as breakaway
Wall or Floor
connection.
Type C, CO, CR, & R
Sleeve
“K” side
On types R & CR
factory furnished
duct collar qualifies as breakaway
connection, see
Section 5
Sleeve
Type C, CO, CR, & R
On types R & CR factory
furnished duct collar qualifies
as breakaway connection, see
Section 5
Damper
Duct
When dampers installed horizontally,
the ramp must be positioned up as
shown in above drawings.
Figure 1
Wall or
floor
Type C, CO, CR, & R
Type C, CO, CR, & R
When dampers installed vertically, the
blade stack must be on the top.
5
When dampers installed horizontally,
the ramp must be positioned up as
shown in above drawings.
3.ATTACHING FIRE DAMPERS TO SLEEVES
Fire dampers must be attached to sleeves as shown in
Figure 3. All four sides of the damper frame must be
attached to the sleeve with one row of attachments on
each side of the blade channel. Attachments must be
spaced a maximum of 6 in. (152mm) on centers and a
maximum of 2 in. (51mm) from corners. A minimum of 4
attachments (2 on each side of the blade channel ) per
side ( 16 per damper ) are required. One of the methods of
attachment shown below must be used.
• tack or spot welds
• #10 sheet metal screws
• 1/4 in. (6mm) bolts and nuts
• 3/16 in. (4.7mm) steel pop rivets
4.SECURING FIRE DAMPER AND SLEEVES TO
WALL AND FLOOR OPENINGS.
The fire damper must be installed such that the
centerline of the blades are mounted in the plane of the
wall or floor.
Figure 2 Transfer opening or no connecting duct
Fire damper and sleeve assemblies must be installed in
wall and floor openings using retaining angles on each
side of the wall or floor as described below:
•Retaining angles for 11/2 hour rated dampers with a
width and height 48 in. (1219mm) or less must be a
minimum of 20 ga. (1mm). Retaining angles for all
3 hour rated dampers and all dampers with a width
or height greater than 48 in. (1219mm) must be a
minimum of 16 gauge (1.5mm). The leg of the retaining
angle on the damper sleeve shall be a minimum of
11/4 in. (32mm). The leg of the retaining angle on the
wall/floor shall be long enough to cover the annular
space and overlap the wall/floor by a minimum of 1 in.
(25mm). (See Figure 4). Retaining angle legs may be
reversed with leg of retaining angle with annular space
of opening so angle and sleeve is flush against barrier.
• Retaining angles must be attached to the sleeve using
the procedures and methods described in Section
3. The angles must be attached to all 4 sides of the
sleeve with butt joints at each corner. A minimum of
two attachments are required on each side, top and
bottom. The angles need not be attached to each
other at the corners.
• Retaining angles should not be fastened to the wall /
floor material. The angles should only sandwich the
wall /floor and allow for damper/sleeve expansion
during periods of intense heat.
For single retaining angle applications, see Single Side
Retaining Angle Supplement (#474015).
Attachments--Do not place attachments between blade channels
Blade
Channel
NOTE: Attachments must not enter blade
channel or they may cause interference with
blade closure. Narrow Line and Ultra Thin
dampers do not have flange for attachments
and must be welded to sleeve.
2 in. Max.
6 in. Max.
Attachments can be
staggered or evenly
spaced.
Figure 3: Field attachment of fire dampers to sleeves.
Wall or Floor
Min. 1 in.
overlay*
Retaining
Angle
Retaining
angle
Sleeve
No Connecting Duct or Transfer Opening
Openings where duct does not attach on either side will not
require a breakaway connection. Transfer openings are
typical of a non-ducted installation (see Figure 2).
2 in.
• Sleeve may end flush with the rated wall/floor on both
sides
Duct
Max
.
6 in. M
ax.
• Refer to Section 4 for securing retaining angles to
sleeves.
5. CONNECTING DUCTS TO FIRE DAMPER SLEEVE
Any duct connection other than breakaway is considered
rigid. The connections shown on this page are
considered breakaway. Factory furnished duct collars
on type R and CR fire dampers are also considered
breakaway (see Figure 1).
6
6 in. M
ax.
2 in.
Max
.
Figure 4: Retaining angle installation.
Damper
6. MULTIPLE SECTION FIRE DAMPERS
When multiple sections are shipped unassembled, installer shall fasten dampers together as described in Section 3.
Table 2 shows maximum sizes for multiple section dampers. Dampers that are two or more sections tall must be factory
assembled.
Damper Model
Mounting
Maximum Single
Section Damper Sizes*
Maximum Multi-Section
Damper Sizes*
FD-100 , FD-300, FD-310, SSFD-350
Vertical
48 X 48 (1219mm x 1219mm)
96 x 48 (2438mm x 1219mm) or
120 x 40 (3048mm x 1016mm)
FD-150
Vertical or Horizontal
48 X 48 (1219mm x 1219mm)
FD-110
Vertical or Horizontal
48 x 48 (1219mm x 1219mm)
96 x 48 (2438mm x 1219mm)
Vertical
48 X 48 (1219mm x 1219mm)
96 X 48 (2438mm x 1219mm) or
120 X 40 (3048mm x 1016mm)
Horizontal
36 x 36 (914mm x 914mm)
-
Vertical
48 x 48 (1219mm x 1219mm)
-
Horizontal
40 x 40 (1016mm x 1016mm)
80 x 40 (2032mm x 1016mm)
96 x 48 (2438mm x 1219mm) or
120 x 40 (3048mm x 1016mm)
SSFD-150
FD-350
KFD-150
Vertical or Horizontal
36 x 16 (914mm x 406mm)
KFD-110
Vertical or Horizontal
36 x 16 (914mm x 406mm)
96 x 48 (2438mm x 1219mm)
36 x 16 (914mm x 406mm)
96 X 48 (2438mm x 1219mm) or
120 X 40 (3048mm x 1016mm)
SSKFD-150
Vertical
KFD-350
SSKFD-350
Vertical
36 x 16 (914mm x 406mm)
-
Horizontal
36 x 16 (914mm x 406mm)
80 x 40 (2032mm x 1016mm)
Vertical
36 x 16 (914mm x 406mm)
-
36 x 36 (914mm x 914mm)
72 x 48 (1828mm x 1219mm) or
60 x 60 (1524mm x 1524mm) or
120 x 30 (3048mm x 762mm)
24 x 18 (610mm x 457mm)
48 x 36 (1217mm x 914mm)
30 x 30 (762mm x 762mm)
-
Vertical
DFD-150, DFD-110
Horizontal
Vertical
DFD-350
Horizontal
DFD-310
SSDFD-110, SSDFD-150. SSDFD-350
36 x 36 (914mm x 914mm)
-
24 x 18 (610mm x 457mm)
48 x 36 (1217mm x 914mm)
30 x 30 (762mm x 762mm)
Vertical
36 x 36 (914mm x 914mm)
-
Horizontal
30 x 30 (762mm x 762mm)
-
Vertical
30 x 30 (762mm x 762mm)
-
Note: All dimensions shown are in inches (W x H).
* Sizes listed is the damper size not transition size.
Table 2: Maximum section sizes and overall sizes for multiple section dampers (W x H).
DUCT-SLEEVE CONNECTIONS
Traditional Breakaway Style Transverse Joints
Transverse joints illustrated in Figure 5 have always been
approved as breakaway connections. SMACNA testing
has also approved the following variations as breakaway
connections.
•The breakaway connections shown to the right can be
applied with maximum of (2) #10 sheet metal screws on
each side and on the bottom located in the center of the
slip pocket and penetrating both sides of the slip pocket.
•Transverse joints illustrated can
be applied as top and bottom
joints with Drive Slip - side joints
in duct heights up to 20 inches
Drive Slip Joint
(508mm).
Plain “S” Slip
Inside Slip Joint
Standing “S” (Alt.)
Hemmed “S” Slip
Double “S” Slip
Standing “S”
Standing “S” (Alt.)
Standing “S”
(Bar Reinforced)
Standing “S”
(Angle Reinforced)
Figure 5: Traditional breakaway style transverse
joints.
7
DUCT-SLEEVE CONNECTIONS cont...
Round and Oval Duct Breakaway Connections
Round ducts connected to factory supplied Type R or CR
damper collars may use #10 sheet metal screws as follows:
• Ducts 22 in. (559mm) wide (or dia.) and smaller may use
3 screws.
• Ducts larger than 22 in. (559mm) wide (or dia.) may use
5 screws.
NOTE: All breakaway connections described may have
duct sealant applied, PA2084T duct sealant adhesive
manufactured by Precision or DP1010 water base duct
sealant by Design Polymetrics, Grey Pookie, or Ductmate
PROseal®, or CL Ward S Seal in accordance with SMACNA
recommendations.
Fire Damper Sleeve
6 in. long 1/16 in. max.
thickness plastic cleats;
12 in. c-c (min. 1 per side)
Flanged system angles
(Attach per
manufacturer's
instructions)
Do not bolt corners
Neoprene gasket
between all angles
Manufactured Flanged System Breakaway
Connections
Duct
Figure 6: Detail of manufactured flanged system
breakaway connections.
Flanged connection systems manufactured by Ductmate,
Ward, and Nexus are approved as breakaway connections
when installed as illustrated in Figure 6.
Proprietary Flange System Breakaway
Connections
Clip Spacing
(TDC by Lockformer, TDF by Engle)
Std. Clip
Length
6 in.
60 in. Duct
4 Req’d.
TDC and TDF systems are approved as breakaway connections when installed as described in the SMACNA Duct
Construction Standards. Standard 6 in. (152mm) metal clip
may be used with spacing as shown in Figure 7. ThreeSleeve
eighths in. (9.5mm) metal bolts and nuts may
be used to
fasten together corner pieces.
60 in. Duct
4 Req’d.
Typical TDC/TDF joint
Sleeve
Std. Clip
Length
36 6in.in.Duct
3 Req’d.
Duct6 in.
7 in.
48 in. Duct
3 Req’d.
24 in. Duct
2 Req’d.
5 in.
36 in. Duct
3 Req’d.
Duct
6 in.
7 in.
48 in. Duct
3 Req’d.
Clip Spacing
9 in.
6 in.
7 in.
5 in.
5 in.
9 in.
6 in.
5 in.
5 in.
7 in.
5 in.
18 in. DuctMetal
& Stud Construction
Smaller
CL
5 in.
1 Req’d.
Duct
Gypsum Wallboard
5 in.
24 in. Duct
2 Req’d.
Figure 7: Detail of proprietary flanged system
18 in. Duct & breakaway connections.
Typical TDC/TDF joint
Smaller
1 Req’d.
CL
Duct
Stud or Runner
Recommended Preparation of Openings in Wood and Metal Stud Walls
Retaining
• Frame wall openings as shown in Figure 8 & 8A.
Angle
(25mm) minimum
• Gypsum wall board must be fastened 12 in. (305mm) on center to all stud and runner flanges surrounding 1in.
opening
(see
Figure 8 & 8A).
In metal stud construction,
• Prepare opening between studs and sleeve assembly as shown (see. Figure
9).
Damper
exposed steel surfaces need
Sleeve
not be covered with gypsum
• All construction and fasteners must meet the requirements of the appropriate wall design.
wallboard. (See UL Fire Resistance
Directory)
Metal Stud Construction
Wooden Stud Construction
Gypsum Wallboard
Gypsum Wallboard
Stud or Runner
Stud or Runner
Retaining
Angle
Retaining
Angle
1in. (25mm) minimum
1in. (25mm) minimum
Damper
Sleeve
In metal stud construction,
exposed steel surfaces need
not be covered with gypsum
wallboard.
Damper
Sleeve
In wood stud construction,
gypsum wallboard must cover
all wood stud surfaces.
Figure 9: Detail of retaining angles and gypsum board application for metal and wooden stud construction.
Wooden Stud Construction
Gypsum Wallboard
8
Stud or Runner
Second set of studs are not required on openings
36 in. x 36 in. (914mm x 914mm) or smaller.
24 in. o.c.
Maximum
(metal studs)
24 in. o.c.
Maximum
(metal studs)
Ceiling Runner
12 in.
24 in. o.c.
Maximum
2 in. (51mm)
2 Panhead
Screws
16 in. o.c.
Maximum
(wood studs)
2 in. (51mm)
16 in. o.c.
Maximum
(wood studs)
Metal stud only
Floor Runner
Figure 8A
Figure 8: Preparation detail for opening in stud wall.
Damper Maintenance
Dampers shall be maintained, cycled, and tested in intervals as stated in the latest editions of NFPA 90A, 92A, and UL
864 unless local codes require more frequent inspections.
Dampers do not typically require maintenance as long as they are kept dry and clean. If cleaning is necessary, use mild
detergents or solvents. If lubrication is desired, do not use oil-based lubricants or any other lubricants that attract contaminant’s such as dust.
Damper Trouble Shooting
The following is a cause and correction list for common concerns with the dampers.
Symptom
Damper does not fully open and/or
fully close
Link separated
Possible Cause
Corrective Action
Frame is 'racked' causing blades to
bind on jamb
Adjust frame such that it is square
and plumb
Screws in damper linkage
Locate screws and remove
Contaminant's on damper
Clean with a non-oil based solvent
(see Damper Maintenance)
Heat
Replace link
Our Commitment
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications without notice.
Specific Greenheck product warranties are located on greenheck.com within the product area tabs and in
the Library under Warranties.
®
Phone: (715) 359-6171 • Fax: (715) 355-2399 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com
452763• DFD, FD, SSDFD Series Rev. 17, August 2013
9
Copyright 2013 © Greenheck Fan Corporation
Return to Table of Contents
Document Number 453946
FD & DFD 150X MODELS
®
1 1⁄2 Hour
Curtain Fire Dampers
Vertical or Horizontal Mount
Installation, Operation and Maintenance Instructions
S TAT
CALIFOR
OF
RE
AL
E
L
S TAT
FI
NIA
E
FD and DFD 150X Series models are intended for
installation in accordance with fire damper
requirements
established by:
S T ING
LI
National Fire Protection Association
NFPA Standard 80, 90A, & 101
SE
IBC International Building Codes
R VIC E
CSFM California State Fire Marshal
Fire Damper Listing (#3225-0981:102)
New York City (BSA/MEA listing #260-91-M)
M AR S H
“UL CLASSIFIED (see complete marking on product)”
“UL CLASSIFIED to Canadian safety standards (see
complete marking on product)”
UL Standard 555 (Listing #R13317)
INSTALLATION SUPPLEMENTS
Refer to the appropriate Greenheck installation
supplements for special requirements:
• Support Mullions
• Shaftwall Supplement
• Drywall Supplement
• Grille Installation Supplement
• Drive Slip Supplement
• Sealant Supplement
• Sleeve Extension Supplement
• Single side Retaining Angles Supplement
Note: Refer to Greenheck IOM, Part #461335, for
CFSD models to be installed in corridor ceiling
applications.
Refer to Greenheck IOM, Part # 452763 for
standard DFD and FD models.
SAFETY WARNING:
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, injury
or death. Read the installation, operating, and
maintenance instructions thoroughly before installing
or servicing this equipment.
RECEIVING AND HANDLING
WARRANTY
Upon receiving dampers, check for both obvious and
hidden damage. If damage is found, record all necessary
information on the bill of lading and file a claim with
the final carrier. Check to be sure that all parts of the
shipment, including accessories, are accounted for.
Greenheck warrants this equipment to be free from
defects in material and workmanship for a period of one
year from the shipment date. Any units or parts which
prove to be defective during the warranty period will be
repaired or replaced at our option. Greenheck shall not
be liable for damages resulting from misapplication or
misuse of its products. Greenheck will not be responsible
for any installation or removal costs. Greenheck will not be
responsible for any service work or backcharges without
prior written authorization.
Dampers must be kept dry and clean. Indoor storage
and protection from dirt, dust and the weather is highly
recommended. Do not store at temperatures in excess of
100°F.
This manual is the property of the owner, and is required for future maintenance. Please leave it with the owner when the
job is complete.
Due to continuing research, Greenheck reserves the right to change specifications without notice.
10
Table of Contents
Pre-Installation Guidelines..........................................................................................................................................11
Installation.............................................................................................................................................................12-14
Breakaway Connections.............................................................................................................................................15
Installation for Steel Stud Connection Option...........................................................................................................16
Damper Maintenance..................................................................................................................................................17
Damper Troubleshooting.............................................................................................................................................17
Pre-Installation Guidelines
The basic intent of a proper installation is to secure the fire damper in, not to, the opening in such a manner as to
prevent distortion and disruption of damper operation. This is accomplished by allowing the fire damper in rated
separation openings to expand and for the connecting duct to separate in the event of the collapse of the hanging
system. The following items will aid in completing the damper installation in a timely and effective manner.
1. Check the schedules for proper damper locations within the building. Visually inspect the damper for damage and
verify that the fusible link is in place or has not separated. If fusible link is not present or has separated, replace
link. Never install a fire damper without the proper UL approved fusible link in place. (Fusible link is standard
control option. An electric link may have been provided.)
2. Lift or handle damper using sleeve or frame.
3. Install damper accordingly to comply with manufacturer’s appropriate UL procedure file number.
4. Damper must be installed into duct or opening square and free of twist or other misalignment. Damper must not be
squeezed or stretched into duct or opening.
5. Damper must be kept clean and protected from dirt, dust and other foreign materials prior to and after installation.
Examples of such foreign materials include, but are not limited to:
a. Mortar dust
b. Drywall dust
c. Firesafing materials
d. Wall texture
e. Paint overspray
6. Damper should be sufficiently covered as to prevent overspray of spray-on insulating, wall texturing, or spray
painting when performed within 5 feet of the damper. Excessive dirt or foreign material deposits can cause damper
to bind and not operate properly.
7. Caulking is not necessary, nor is it allowed, between the damper sleeve and the wall or floor opening (annular
space). However, caulking may be applied to the retaining angles.
8. ACCESS: Suitable access (such that fusible links can be changed) must be provided for damper inspection and
servicing. Where it is not possible to achieve sufficient size access, it will be necessary to install a removable
section of duct. (Refer to NFPA 90A).
9. The Code Authority Having Jurisdiction (AHJ) must evaluate and provide approval of final installation where
variations to these instructions are necessary.
11
Installation -
Failure to follow these instructions will void all warranties.
These instructions apply to 11/2 hour rated fire dampers
mounted in masonry, block or stud walls and concrete
floors. Specific requirements in these instructions are
mandatory. These instructions meet the requirements of
UL 555. Installation shall comply with the requirements
of NFPA 90A Standard for the Installation of Air
Conditioning and Ventilating Systems. U.L. listing
R13317, California State Fire Marshal listings 3225981:102, and New York City BSA/MEA listing 260-91-M
as they apply to these dampers.
Min. 1 in.
Overlap*
Retaining
Angle
Wall or
Floor
Retaining
Angle
Sleeve
Duct
2 in
. M
ax
.
Note: Fire dampers are manufactured and labelled for
either vertical or horizontal installation. The dampers
must be installed in accordance with the labelling.
6 in
. M
ax
.
Damper
6 in
. M
ax.
1.NO ADDITIONAL SLEEVES ARE REQUIRED
The fire damper extended frame is an approved
sleeve and can be properly installed without the need
for a supplemental field installed sleeve. Damper
frame shall extend a maximum of 6 in. (152mm)
beyond the wall or floor opening on each side.
2.CLEARANCES REQUIRED BETWEEN FIRE
DAMPER SLEEVES AND WALL/FLOOR
OPENINGS
Fire damper assemblies expand during periods of
intense heat. Therefore, it is essential that openings
in walls or floors be larger than the fire damper
assembly to allow for this expansion. Minimum
clearances required between the outside of fire
damper sleeve assemblies and wall/floor openings
are:
• Galvanized steel fire dampers and sleeves: 1/8
in. (3mm) per linear foot of damper width and
height with a minimum clearance of 1/4 in. (6mm)
.Recommended clearances, for width and/or height
dimensions of:
1) 48 in. (1219mm) or less: 1/2 in. (13mm) clearance
2) More than 48 in. (1219mm) and 96 in. (2438mm)
or less: 1 in. (25mm) clearance
3) More than 96 in. (2438mm): 11/2 in. (38mm)
clearance
These are total clearances (ignoring fastener heads)
and do not need to be equally spaced around
the damper. Refer to Section 3 and Figure 1 for
additional installation considerations.
Example:
A 12 in. x 12 in. (305mm x 305mm) damper would
require a minimum clearance of 1/4 in. (6mm).
A 48 in. x 12 in. (1219mm x 305mm) damper
would require a minimum clearance of 1/2 in.
(13mm) on width and 1/4 in. (6mm) on height.
2 in
. M
ax.
*only applicable for damper sizes above 36 in. x 36 in.
Figure 1: Retaining angle installation.
3.SECURING THE FIRE DAMPER TO WALL AND
FLOOR OPENINGS
Fire damper assemblies must be installed in wall and
floor openings using retaining angles on each side of
the wall or floor as described below:
• Retaining angles for 11/2 hour rated dampers with
a width and height 48 in. (1219mm) or less must be
a minimum of 20 ga. (1mm). Retaining angles for
all 3 hour rated dampers and all dampers with a
width or height greater than 48 in. (1219mm) must
be a minimum of 16 gauge (1.5mm). The leg of the
retaining angle on the damper sleeve shall be a
minimum of 11/4 in. (32mm). The leg of the retaining
angle on the wall/floor shall be long enough to cover
the annular space and overlap the wall/floor by a
minimum of 1 in. (25mm).
•Retaining angles must be attached to the damper
using one or more of the following methods of
attachment:
• tack or spot welds
• #10 sheetmetal screws
• 1/4 in. (6mm) bolts and nuts
• 3/16 in. (4.7mm) steel pop rivets
Attachments must be spaced a maximum of 6 in.
(152mm) on center and a maximum of 2 in. (51mm)
from corners. The angles must be attached to all 4
sides of the sleeve with butt joints at each corner.
A minimum of two attachments are required on
each side, top and bottom. The angles need not be
attached to each other at the corners.
12
• Retaining angles should not be fastened to the wall/
floor material. The angles should only sandwich the
wall/floor and allow for damper expansion during
periods of intense heat.
4. CONNECTING DUCTS TO THE FIRE DAMPER
All duct connections to FD & DFD 150X series extended frame dampers must be “breakaway” type connections. All
1/4are
in. minimum
connections shown
considered breakaway. Factory furnished duct collars on types R & CR fire
total clearance
dampers are also considered breakaway(see Figure 2 & 3).
1/4 in. minimum
total clearance
Retaining Angles
(See Section 4)
1/4 in. minimum
total clearance
Wall or Floor
Maximum
6 in.
See Section
2
e
Maximum
Wall or Floor
6 in.
“K” side
Wall or Floor
Maximum
6 in.
Maximum
6 in.
Maximum
6 in.
Wall or Floor
W
Maximum
6 in.
Sleeve
(see sections 2 & 3)
See Section 2
Damper
Dampe
Duct
Duct
Type A
Damper
Duct
Duct
Damper
Damper
Retaining Angles
Retaining Angles
(See
SectionAngles
3)
Retaining
(See Section 3)
(See Section 3)
Type
Type AA
Retaining Angles
(See Section 4)
Type A Wall
Wall
or Floor
or Floor
Wall or Floor
See Section 2
Damper
Damper
“K” side
Damper
Wall or
Floor
Sleeve
(see sections 2 & 3)
See Section 2
Damper
Duct
Duct
Duct
Duct
Type B
Wall or Floor
On types R & CR factory
furnished duct collar
qualifies as breakaway
connection.
On types R & CR factory
Type B
Type B
Type B
Duct
Wall or Floor
Wall or Floor
On types
R &duct
CR factory
furnished
collar
qualifies
as breakaway
furnished
duct
collar
connection.
qualifies as breakaway
connection.
“K” side
Wall or
floor
Damper
Duct
Sleeve
Type C, CO, CR, & R
Damper
Duct
On types R & CR factory
furnished duct collar qualifies
as breakaway connection, see
Section 5
Damper
Duct
Type C, CO, CR, & R
Type C, CO, CR, & R
Figure 2: Vertical Mount Type A, Type B, and Type C,
CO, CR, R damper installation diagrams.
Type C, CO, CR, & R
Figure 3: Horizontal Mount Type A, Type B, and Type C,
CO, CR, R damper installation diagrams.
When dampers installed horizontally, the ramp must be
positioned up as shown in above drawings.
Damper Model
Maximum Sizes for Single
Section Dampers*
in. (mm)
FD-150X (H or V)
48 x 48 (1219 x 1219)
DFD-150X (V)
36 x 36 (914 x 914)
DFD-150X (H)
30 x 30 (762 x 762)
Note: V = Vertical mount & H = Horizontal
* Sizes are based on damper with no transitions.
Table 1
13
Recommended Preparation of Openings in Wood and Metal Stud Walls
• Frame wall openings as shown in Figure 4 and 4A.
•Gypsum wall board must be fastened 12 in. on center to all stud and runner flanges surrounding opening (see
Figure 4 and 4A).
• Prepare opening between studs and sleeve assembly as shown below (see Figure 5).
•All construction and fasteners must meet then requirements of the appropriate wall design.
(See UL Fire Resistance Directory)
24 in. o.c.
Maximum
(metal studs)
24 in. o.c.
Maximum
(metal studs)
Ceiling Runner
12 in.
24 in. o.c.
Maximum
2 Panhead
Screws
16 in. o.c.
Maximum
(wood studs)
2 in. (51mm)
2 in. (51mm)
16 in. o.c.
Maximum
(wood studs)
Floor Runner
Figure 4: Preparation detail for opening in stud wall.
Second set of studs are not required on openings
36 in. x 36 in. (914mm x 914mm) or smaller.
Metal Stud Construction
Gypsum Wallboard
Stud or Runner
Retaining
Angle
1 in. Min.
Damper
Sleeve
In metal stud construction,
exposed steel surfaces need
not be covered with gypsum
wallboard.
Metal stud only
Figure 4A
Wooden Stud Construction
Metal Stud Construction
Gypsum Wallboard
Gypsum Wa llboard
Stud or Runner
Stud or Runner
Retaining
Angl e
Retaining
Angle
1 in. Min.
Damper
Sleeve
1 in. Min.
In metal stud construction,
exposed steel surfaces need
not be covered with gypsum
wallboard.
Damper
Sleeve
In wood stud construction,
gypsum wallboard must cover
all wood stud surfaces.
Figure 5: Detail of retaining angles and gypsum board application for metal and wooden stud construction.
14
Wooden Stud Construction
Duct-Sleeve Connections
Traditional Breakaway Style Transverse Joints
Transverse joints illustrated in Figure 6 have always
been approved as breakaway connections. SMACNA
testing has also approved the following variations as
breakaway connections.
Plain “S” Slip
•The breakaway connections shown to the right can
be applied with maximum of (2) #10 sheet metal
screws on each side and on the bottom located in
the center of the slip pocket and penetrating both
sides of the slip pocket.
•Transverse joints illustrated can
be applied as top and bottom
joints with Drive Slip - side
Drive Slip Joint
joints in duct heights up to 20
in. (508mm).
Round and Oval Duct Breakaway Connections
Round or flat oval ducts connected to factory supplied
Type R, CR, or CO damper collars may use #10 sheet
metal screws as follows:
• Ducts 22 in. (559mm) wide (or dia.) and smaller may
use 3 screws.
• Ducts larger than 22 in. (559mm) wide (or dia.) may
use 5 screws.
Hemmed “S” Slip
Inside Slip Joint
Standing “S” (Alt.)
Double “S” Slip
Standing “S”
Standing “S” (Alt.)
Standing “S”
(Bar Reinforced)
Standing “S”
(Angle Reinforced)
Figure 6: Traditional breakaway style transverse joints.
NOTE: All breakaway connections described may have
duct sealant, PA2084T duct sealant adhesive manufactured
by Precision, DP1010 water base duct sealant by Design
Polymetrics, Grey Pookie, Ductmate PROseal®, or
CL Ward S Seal applied in accordance with SMACNA
recommendations.
Proprietary Flange System Breakaway Connections
(Ductmate, Ward, Nexus)
Flanged connection systems manufactured by
Ductmate, Ward, and Nexus are approved as breakaway
connections when installed as illustrated in Figure 7.
Fire Damper Sleeve
6 in. long 1/16 in. max.
thickness plastic cleats;
12 in. c-c (min. 1 per side)
Flanged system angles
(TDC by Lockformer, TDF by Engle)
TDC and TDF systems are approved as breakaway
connections when installed as described in the SMACNA
Duct Construction Standards. Standard 6 in. metal clips
may be used with spacing (see Figure 8). Three-eighth
in. metal bolts and nuts may be used to fasten together
corner pieces (see Figure 9).
(Attach per
manufacturer’s
instructions)
Do not bolt corners
Neoprene gasket
between all angles
Duct
Figure 7: Detail of manufactured flanged system
breakaway connections.
Clip Spacing
Std. Clip
Length
6 in.
60 in. Duct
4 Req’d.
6 in.
Duct
Typical TDC/TDF joint
6 in.
Corner Piece
7 in.
48 in. Duct
3 Req’d.
Sleeve
Duct End
Flange
9 in.
36 in. Duct
3 Req’d.
7 in.
5 in.
5 in.
5 in.
5 in.
3/8 in. bolt
(optional)
24 in. Duct
2 Req’d.
18 in. Duct &
Smaller
1 Req’d.
CL
Duct
Figure 8: Detail of proprietary flanged system breakaway
connections.
Figure 9: Detail of bolted corner.
15
Installation for Steel Stud Connection (SSC) Option
These instructions apply to 11/2 hour rated fire dampers mounted in steel stud walls. Specific requirements in these
instructions are mandatory. These instructions meet the requirements of UL555. Installation shall comply with the
requirements of NFPA 90A Standard for the Installation of Air Conditioning and Ventilating Systems. U.L. listings
R13317 and R13743, California State Fire Marshal listings 3225-981:102 and 3225-1241:101, and New York City BSA/
MEA listing 260-91-M as they apply to these dampers.
1. NO ADDITIONAL SLEEVES OR ANGLES ARE
REQUIRED
3. FRAMING OF WALL OPENING
Form a wall opening 1/8 in. (3mm) to 1/4 in. (6mm)
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.
The fire damper extended frame is an approved
sleeve and the Steel Stud Connection (SSC) Option
allows fastening of the fire damper sleeve directly
to the wall's steel stud framing. Damper frame shall
extend a maximum of 6 in. (152mm) beyond the wall
opening on either side. Maximum size fire damper
that may be installed using this SSC option is 36 in. W
x 36 in. H (914mm x 914mm).
4.APPLY WALLBOARD AFTER DAMPER
INSTALLATION
2.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. (305mm)
maximum and located a maximum of 2 in. (51mm)
from each corner. No additional retaining angles are
required to complete the installation.
Fire damper with SSC option must be in place before
the wall is constructed or it can be installed as the
wall is being constructed. Wall opening is framed
around the fire damper before sheet rock or other
wall board material is applied to the steel studs. This
installation provides appropriate protection for duct
penetrations in fire resistant wall construction using
steel studs with a fire resistance rating less than 3
3
hours. The following wall design
numbers (as detailed
in the UL Fire Resistance Directory) are appropriate
for fire damper installations using this SSC option:
5. CONNECTING DUCTS TO THE FIRE DAMPER
3
All duct connections to FD & DFD 150X series
extended frame dampers must be “breakaway” type
connections. All connections shown on page 5 & 6
are considered breakaway. Factory furnished duct
collars on types R, CR, & CO fire dampers are also
considered breakaway.
1 Hour Design: U405, U406, U422, U434, U448, U451,
U456, U457, U465, U468, U469, U485, U494
11/2 Hour Design:
U449, U452, U470, U471
2
2
2 Hour Design: U403, U411, U412, U421, U425, U428,
U429, U443, U453, U474, U475, U477, U484, U491,
U495
Item
Description
3
3
1
FD150X fire damper with SSC option
2
Steel stud wall (see UL Fire Resistance Directory for specific details)
3
Steel stud frame around opening in wall
4
Duct connection (see section 6)
5
Wallboard (see UL Fire Resistance Directory for specific
details)
6
Fasteners (see UL Fire Resistance Directory and Section 5)
3
2
3
3
Retaining
Bar
1
5
3
4
Retaining
Bar
4
1
4
Top Cross-section View
6
1
5
1
3
6
3
3
2
4
Side Cross-Section View
Top Cross-section View
of Damper in Wall
16
3
Retaining
5
1
2
Side Cross-Section View
of Damper in Wall
6
1
4
Damper Maintenance
Dampers shall be maintained, cycled, and tested in intervals as stated in the latest editions of NFPA 90A, 92A, and UL
864 unless local codes require more frequent inspections.
Dampers do not typically require maintenance as long as they are kept dry and clean. If cleaning is necessary, use
mild detergents or solvents. If lubrication is desired, do not use oil-based lubricants or any other lubricants that attract
contaminant’s such as dust.
Damper Trouble Shooting
The following is a cause and correction list for common concerns with the dampers.
Symptom
Damper does not fully open and/or
fully close
Link separated
Possible Cause
Corrective Action
Frame is 'racked' causing blades to
bind on jamb
Adjust frame such that it is square
and plumb
Screws in damper linkage
Locate screws and remove
Contaminant's on damper
Clean with a non-oil based solvent
(see Damper Maintenance)
Heat
Replace link
Our Commitment
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications without notice.
Specific Greenheck product warranties are located on greenheck.com within the product area tabs and in
the Library under Warranties.
®
Phone: (715) 359-6171 • Fax: (715) 355-2399 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com
453946• DFD & FD 150X Series Rev. 15, August 2013
17
Copyright 2013 © Greenheck Fan Corporation
Return to Table of Contents
DOCUMENT NUMBER 462721
DFDR-XXX, SEDFDR-XXX,
SSDFDR-XXX,
FDR-XXX, and SSFDR-XXX MODELS
®
1 1⁄2 Hour Round Fire Dampers
Vertical and Horizontal Mount
Installation, Operation and Maintenance Instructions
DFDR-XXX, SSDFDR-XXX, FDR-XXX, and SSFDRXXX Model Dampers are intended for installation in
accordance with fire damper requirements established
by:
National Fire Protection Association
NFPA Standards 80, 90A, 101 and 105
IBC International Building Codes
New York City (MEA listing #260-91-M)
California State Fire Marshal (CSFM)
Fire Listing (3225-0981:0112)
“UL CLASSIFIED (see complete marking on product)”
“UL CLASSIFIED to Canadian safety standards (see
complete marking on product)”
UL Standard 555 (Classification #R13317)
RECEIVING AND HANDLING
SAFETY WARNING:
Upon receiving dampers, check for both obvious and
hidden damage. If damage is found, record all necessary
information on the bill of lading and file a claim with
the final carrier. Check to be sure that all parts of the
shipment, including accessories, are accounted for.
Improper installation, adjustment, alteration,
service or maintenance can cause property damage,
injury or death. Read the installation, operating,
and maintenance instructions thoroughly before
installing or servicing this equipment.
Dampers must be kept dry and clean. Indoor storage
and protection from dirt, dust and the weather is highly
recommended. Do not store at temperatures in excess of
100°F (37°C).
WARRANTY
Greenheck warrants this equipment to be free from
defects in material and workmanship for a period of one
year from the shipment date. Any units or parts which
prove to be defective during the warranty period will be
repaired or replaced at our option. Greenheck shall not
be liable for damages resulting from misapplication or
misuse of its products. Greenheck will not be responsible
for any installation or removal costs. Greenheck will not
be responsible for any service work or backcharges
without prior written authorization.
INSTALLATION SUPPLEMENTS
Refer to the appropriate Greenheck installation
supplements for special requirements:
• Steel Deck Supplement
Due to continuing research, Greenheck reserves the right to change specifications without notice.
This manual is the property of the owner, and is required for future maintenance. Please leave it with the owner when
the job is complete.
18
Table of Contents
Pre-Installation Guidelines........................................................................................................19
Installation............................................................................................................................19-22
Maintenance..............................................................................................................................19
Troubleshooting.........................................................................................................................19
Pre-Installation Guidelines
The basic intent of a proper installation is to secure the fire damper in the opening in such a manner as to
prevent distortion and disruption of damper operation. This is accomplished by allowing the fire damper in
rated separation openings to expand and for the connecting duct to separate in the event of the collapse of
the hanging system. The following items will aid in completing the damper installation in a timely and effective
manner.
1) Check the schedules for proper damper locations
within the building. Visually inspect the damper for
damage and verify that the fusible link is in place
or has not separated. Dampers will be supplied
with a temperature responsive fusible link device.
If fusible link is not present or has separated,
replace link. Never install a fire damper without
the proper UL approved fusible link in place.
2) Lift or handle damper using the frame. Do not lift
damper using blades.
3) Do not install screws into the main body area of
the damper frame as screws may interfere with
and prevent damper blade from opening and/or
closing.
4) Damper must be installed into duct or opening
free of distortion or other misalignment. Damper
must not be squeezed or stretched into duct
or opening. Out of round, racked, twisted or
misaligned installations can cause torque
requirements to exceed damper design.
5) Damper must be kept clean and protected from
dirt, dust and other foreign materials prior to
and after installation. Examples of such foreign
materials include but are not limited to: 1) Mortar
dust 2) Drywall dust 3) Firesafing materials 4) Wall
texture and 5) Paint overspray.
Installation -
6) Damper should be sufficiently covered to prevent
overspray if wall texturing or spray painting will be
performed within 5 feet of the damper. Excessive
dirt or foreign material deposits on damper can
cause torque requirements to exceed damper
design.
7) Caulking is not allowed between the damper
sleeve and the wall or floor opening (annular
space). However, caulking may be applied to the
retaining plates and a field-applied sealant may be
required for the damper sleeve and transitions to
meet certain duct leakage standards.
8) ACCESS: Suitable access (such that fusible
links can be maintained) must be provided for
damper inspection and servicing. Where it is not
possible to achieve sufficient size access, it will be
necessary to install a removable section of duct.
(Refer to NFPA 90A).
9) The Code Authority Having Jurisdiction (AHJ) must
evaluate and provide approval of final installation
where variations to these instructions are
necessary.
Failure to follow these instructions will void all warranties.
These instructions apply to 1 1/2 hour rated fire
dampers mounted (blades must be horizontal) in: 1)
masonry, block or stud walls and 2) concrete floors or
ceilings. Specific requirements in these instructions are
mandatory. Dampers must be installed in accordance
with these instructions to meet the requirements of
UL 555. The installation of the damper and all duct
connections to the damper sleeve shall conform
to the latest editions of NFPA 90A, Standard for
the Installation of Air Conditioning and Ventilating
Systems, and the SMACNA Fire, Smoke and
Radiation Damper Installation Guide, and UL
Classifications R13317.
19
Installation -
Continued
1. C
LEARANCES REQUIRED BETWEEN FIRE
DAMPER SLEEVES AND WALL/FLOOR
OPENINGS
Fire damper assemblies expand during periods of
intense heat. Therefore, it is essential that openings
in walls or floors be larger than the fire damper
assembly to allow for this expansion. The wall/floor
opening must be a minimum of 7/8 in. (22mm) larger
than the outside diameter of the damper. Refer to
Section 4 for additional installation considerations.
and can be installed without the need for additional
field installed sleeves.
Gauge of factory furnished sleeve determines the
type of duct to sleeve connections required (see
table below). Any duct connection other than the
breakaway connections are considered rigid.
Sleeve Gauge
(mm)
Duct
Dimension
Maximum
Inches (mm)
Type of Duct
to Sleeve
Connection
Permitted
24 (610)
Rigid or Breakaway
24 (610)
Breakaway only
10 ga. (3.5)
RETAINER PLATE
(OPTIONAL)
CLEARANCE FOR
EXPANSION
14 ga. (2)
RETAINER PLATE
16 ga. (1.5)
BLADE LATCH
DUCT CONNECTION
AREA
ACCESS DOOR TO BE ON
SAME SIDE AS BLADE LATCH
2 in.
20 ga. (1mm)
Sleeve thickness must not be less than the gauge of the
connecting duct.
AIRFLOW
2 in.
DUCT CONNECTION
AREA
DO NOT PLACE RETAINER
PLATE IN THIS GROOVE
6 in. max.
Fig. 1
6 in. max.
TW
SLEEVE LENGTH
2. S
LEEVE LENGTH AND WALL/FLOOR
THICKNESS
Insert the damper assembly into the prepared
opening, to appropriate depth (see Fig. 1).
Recommended maximum and minimum insertion
depth can be exceeded as long as the CL of the
damper blade remains within the plane of the wall/
floor.
IMPORTANT
SAFETY DANGER! To avoid
causing death or serious bodily harm to building
occupants, do not insert screws into the damper
frame unless used for duct connection within 2 in.
(51mm) of the frame end.
The sleeve may extend a maximum of 6 in.
(152mm) beyond both sides of the wall or floor.
Recommended standard sleeve lengths for various
wall/floor thicknesses are:
UL Standard 555 requires all ducts to terminate at fire
damper sleeves.
4. S
ECURING THE DAMPER/SLEEVE ASSEMBLY
TO WALL AND FLOOR OPENINGS
Damper assemblies must be installed in wall/
floor openings using a single retaining plate on
either side of the wall/floor or by using a retaining
plate on both sides of the wall/floor. The use of
a second retaining plate is allowed, but is not
necessary. A single retaining plate is provided
with the dampers. A second retaining plate can
be ordered as an option.
•T
he retaining plate(s) will open up for easy
installation when the clamping screw is
loosened. If necessary, remove the clamping
screw and nut (see Fig. 2).
(IMPORTANT: The clamping mechanism should
face away from the wall/floor). Retainer plate(s)
are designed to mount flush to the wall/floor
and hold the damper in the wall/floor opening.
•P
lace the damper and attached retainer plate
into the wall/floor opening.
• If a second retaining plate is being used, secure
it on the opposite side of the wall/floor
DO NOT POSITION RETAINER PLATE(S) IN
FRAME GROOVE
Wall/Floor
Thickness
Dimension (Tw)
Inches (mm)
Sleeve Length
Dimension (L)
Inches (mm)
Up to 61/2 (165)
13 5/8 (346)
61/2 - 81/2 (165 - 216)
15 5/8 (397)
81/2 - 101/2
(216 - 267)
17 5/8 (448)
3.DUCT TO SLEEVE CONNECTIONS
Dampers are supplied with sleeves from the factory
20
•Verify position, blade orientation, and actuator
clearance then tighten the retainer plate
clamping screws. The retainer plate(s) must
overlap the wall/floor opening a minimum of
1 inch (25mm). Secure the retainer plate(s) to
the wall using appropriate fasteners (minimum
#8 sheet metal screws) at the four corners of
each retainer plate when two retainer plates
are used and also within 3/4 in. (19mm) of the
center of each plate when one retainer plate is
used.
Opening
+2
Opening
+ in.
2 in.Min.
Min.
24 in. o.c.
Maximum
(metal studs)
24 in. o.c.
Maximum
(metal studs)
Ceiling Runner
12 in.
Wall/Floor
Opening
Wall/Floor
Opening
= Nominal
Size
+ 7/8
in.in.
Min.
= Nominal
Size
+ 7/8
Min.
Clamping
Clamping
Screw
Screw
1.00
in.in.
Typ.
1.00
Typ.
24 in. o.c.
Maximum
Fasteners
Fasteners
Nut
Nut
2 in .
2 Panhead
Screws
16 in. o.c.
Maximum
(wood studs)
Retaining
Retaining
Plate
Assembly
Plate
Assembly
Fig. 2
Second set of studs are not required on openings
36 in. x 36 in. (914mm x 914mm) or smaller.
Fig. 4
2 in .
16 in. o.c.
Maximum
(wood studs)
Floor Runner
Clamping
Screw
Clamping
Screw
5. R
ecommended Preparation of
Openings in Wood and Metal Stud
Walls
• Frame wall openings as shown below.
(see Fig. 4 & 4A).
• Gypsum wall board must be fastened 12 in.
(305mm) on center to all stud and runner
flanges surrounding opening. (see Fig. 4 & 4A).
• Prepare opening between studs and sleeve
assembly as shown below (see Fig. 3).
• All construction and fasteners must meet the
requirements of the appropriate wall design
(See UL Fire Resistance Directory) and/or local
codes.
Second set of studs are not required on openings
36 in. x 36 in. (914mm x 914mm) or smaller.
Metal stud only
DAMPER FRAME
METAL
STUD
1.00
MIN
Fig. 4A
6. Round Duct Connections
DO NOT PLACE
RETAINER PLATE
Round duct connections shall be attached
with #8 sheet metal screws as follows:
• Ducts 22 in. (559mm) dia. and smaller shall have
three screws.
IN THIS GROOVE.
DAMPER FRAME
WOOD
STUD
1.00
MIN
DO NOT PLACE
RETAINER PLATE
IN THIS GROOVE.
Fig. 3
Metal stud only
•D
ucts larger than 22 in. (559mm) dia. and up
to including 24 in. dia. shall have five screws.
NOTE: All breakaway connections described
may have duct sealant, PA2084T Duct Sealant
Adhesive manufactured by Precision or DP1010
Water Base Duct Sealant manufactured by
Design Polymetrics, Grey Pookie, Ductmate
PROseal® , or CL Ward S Seal applied in
accordance with SMACNA recommendations.
21
DFDR-XXX Blade Orientation
30°
Axle
Axle
30°
Axle
Normal
30° Off Horizontal
(Maximum)
30° Off Horizontal
(Maximum)
Damper Maintenance
Dampers do not typically require maintenance as long as they are kept dry and clean. If cleaning is necessary,
use mild detergents or solvents. If lubrication is desired for components such as axle bearings, do not use oilbased lubricants or any other lubricants that attract contaminants such as dust.
Dampers and their actuator(s) must be maintained, cycled, and tested a minimum in accordance with:
• The latest editions of NFPA 80, 90A, 92A, 92B, 101, 105, UL864, AMCA 503-03 and local codes.
• Actuator manufacturer recommendations.
Damper Troubleshooting
The following is a possible cause and correction list for common concerns with the dampers.
Symptom
Damper does not fully open and/or
fully close
Possible Cause
Corrective Action
Frame is out of round causing blades
to interfere with frame
Adjust frame such that it is round
Screws interfere with blade
Locate screws and remove
Contaminants on damper
Clean with a non-oil based solvent
(see Damper Maintenance)
Heat
Replace link
Link separated
Our Commitment
As a result of our commitment to continuous improvement, Greenheck reserves the right to change
specifications without notice.
Specific Greenheck product warranties are located on greenheck.com within the product area tabs and in
the Library under Warranties.
®
Phone: (715) 359-6171 • Fax: (715) 355-2399 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com
462721• DFDR, FDR Series Rev. 9, August 2013
22
Copyright 2013 © Greenheck Fan Corporation
Return to Table of Contents
Document Number 461337
®
OFSD-XXX, ODFD-XXX,
OFD-XXX, and OSSFD-XXX Series
11/2 Hour Combination Fire Smoke or Curtain Fire Dampers
Out of Wall or Out of Floor
Vertical or Horizontal Mount
Installation, Operation, and Maintenance Instructions
OFSD-XXX, ODFD-XXX, OFD-XXX, and OSSFD-XXX
series dampers are intended for installation in accordance
with combination fire smoke dampers requirements
established by:
NFPA National Fire Protection Association
NFPA Standards 80, 90A, 92A, 92B, 101, & 105
IBC International Building Codes
New York City (MEA listing # 260-91-M)
California State Fire Marshal
Listing #3225-0981:103 & 3230-0981:104
“UL Classified (see complete marking on product)”
“UL Classified to Canadian safety standards (see
complete marking on product)”
UL Standard 555 & 555S (Classification R13317)
Receiving and Handling
Upon receiving dampers, check for both obvious and
hidden damage. If damage is found, record all necessary
information on the bill of lading and file a claim with
the final carrier. Check to be sure that all parts of the
shipment, including accessories, are accounted for.
Electrical Guidelines
All wiring shall be done in accordance with the National
Electrical Code ANSI/NFPA-70 latest edition, any local
codes that may apply, and wiring diagrams developed
in compliance with the job or project design and
specifications.
Dampers must be kept dry and clean. Indoor storage
and protection from dirt, dust and the weather is highly
recommended. Do not store at temperatures in excess
of 100°F (38°C).
Safety Warning:
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, injury or
death. Read the installation, operating, and maintenance
instructions thoroughly before installing or servicing this
equipment.
Warranty
Greenheck warrants this equipment to be free from
defects in material and workmanship for a period of one
year from the purchase date. Any units or parts which
prove to be defective during the warranty period will
be repaired or replaced at our option. Greenheck shall
not be liable for damages resulting from misapplication
or misuse of its products. Greenheck will not be
responsible for any installation or removal costs.
Greenheck will not be responsible for any service work
or backcharges without prior written authorization.
Safety Caution!
Electrical input may be needed for this equipment. This
work should be performed by a qualified electrician.
Verify power before wiring actuator. Greenheck is not
responsible for any damage to, or failure of the unit
caused by incorrect field wiring. To avoid causing death
or serious bodily harm to building occupants, follow all
instructions carefully. Dampers must close completely to
preserve the integrity of the fire smoke separation.
Due to continuing research, Greenheck reserves the right to change specifications without notice.
This manual is the property of the owner, and is required for future maintenance. Please leave it with the owner when
the job is complete.
23
Table of Contents
Pre-Installation Guidelines................................................................................................................................. 24
Installation...................................................................................................................................................... 24-34
• Clearances Requirements..............................................................................................................25-30
• Duct to Sleeve Connections....................................... .........................................................................31
• Securing the Damper/Sleeve Assembly to Wall and Floor Openings.................... ......................31-32
• Actuator Connections.................................... ......................................................................................32
• Recommended Preparation of Openings in Wood and Metal Stud Walls....................................32-33
• Breakaway Connections....................................... .........................................................................33-34
Maintenance.........................................................................................................................................................34
Troubleshooting....................................................................................................................................................34
Pre-Installation Guidelines
The basic intent of a proper installation is to secure the
fire or fire smoke damper in, not to, the opening in such a
manner as to prevent distortion and disruption of damper
operation. This is accomplished by allowing the fire or fire
smoke damper in rated separation openings to expand
and for the connecting duct to separate in the event of the
collapse of the hanging system. The following items will
aid in completing the damper installation in a timely and
effective manner.
1)Check the schedules for proper damper locations
within the building. Visually inspect the damper for
damage and verify that the Reusable Resettable Link
(RRL) is in place or has not activated. Never install
a fire damper without the proper UL approved RRL
in place. (RRL is standard control option. These
electric links have a button for resetting.) If damper
is furnished with fusible link, visually inspect the link
to verify its not missing or broken. Replace link as
necessary.
2)Lift or handle damper using sleeve or frame. Do not
lift damper using blades or actuators.
3)Damper has label on outside of sleeve indicating a
‘No Screw’ area. Do not install screws into this area
as screws may interfere with unexposed blade linkage
and prevent damper blades from opening and/or
closing.
4)Damper has label indicating position of damper
and sleeve assembly in the wall. Install accordingly
to comply with manufacturer’s appropriate UL
Classification file number.
5)Damper must be installed into duct or opening square
and free of twist or other misalignment. Damper
must not be squeezed or stretched into duct or
opening. Out of square, racked, twisted or misaligned
installations can cause excessive leakage and/or
torque requirements to exceed damper/actuator
design.
6)Damper and actuator must be kept clean and
protected from dirt, dust and other foreign materials
prior to and after installation. Examples of such foreign
materials include but are not limited to:
a) Mortar dust
b) Drywall dust
c) Firesafing materials
d) Wall texture
e) Paint overspray
7)Damper should be sufficiently covered as to prevent
overspray if wall texturing or spray painting will be
performed within 5 feet of the damper. Excessive dirt
or foreign material deposits on damper can cause
excessive leakage and/or torque requirements to
exceed damper/actuator design.
8)Caulking is not necessary, nor is it allowed, between
the damper sleeve and the wall or floor opening
(annular space). However, caulking may be applied to
the retaining angles.
9)ACCESS: Suitable access (such that RRL’s and
actuators can be maintained, etc.) must be provided
for damper inspection and servicing. Where it is not
possible to achieve sufficient size access, it will be
necessary to install a removable section of duct. (Refer
to NFPA 90A).
10)The Code Authority Having Jurisdiction (AHJ) must
evaluate and provide approval of final installation
where variations to these instructions are necessary.
Installation - Failure to follow these instructions will void all warranties.
These instructions apply to 11/2 hour rated combination fire smoke dampers and curtain fire dampers mounted in masonry,
block, wood or metal stud walls, or concrete floors. Specific requirements in these instructions are mandatory. These
instructions meet the requirements of UL555. Installation shall comply with the requirements of NFPA 90A (Installation of Air
Conditioning and Ventilating Systems) and UL listing R13317.
24
the header, sill and jamb framing
members. Screw into rear
portion of the studs so as to
avoid space conflicts with the
grille assembly.
Factory Supplied
Thermal Blanket
1. D
AMPER IS INSTALLED OUTSIDE OF WALL PLANE
Grille
OFSD-XXX
(Supplied
Factory Supplied
Thermal Blanket
by others)
Figure 1 shows two approved installations for
combination fire smoke dampers: 1) “Through the
grille access” and 2) installation in continuing duct.
To provide “through the grille” access to the damper
actuator, the damper is located toward the back of the
sleeve and the actuator is installed between the damper
and grille. Actuator and damper can be accessed and
serviced by removing the grille. To provide access to the
damper actuator for continuing ductwork, refer to the
7 1/2 in.
Max.
requirements of NFPA 90A.
7 1/2 in.
Max.
Masonry
floor
Damper
Damper
“Duct Continues”
Horizontal or Vertical Mount
Steel stud
Gypsum Wallboard
Stud or Runner
In wood stud construction,
gypsum wallboard must cover
all wood stud surfaces.
Wooden Stud Construction
#10 2 1/2 in. long sheet metal
screws spaced 6 in. on center
and maximum of 2 in. from the
corners (minimum of 2 screws
per side) through the sleeve into
the header, sill and jamb framing
members. Screw into rear
portion of the studs so as to
avoid space conflicts with the
grille assembly.
Flange
Retaining Angle
(Refer to section 4)
Factory Supplied
Thermal Blanket
Factory Supplied
Thermal Blanket
Grille
(Supplied
by others)
#10 sheet metal screws, 2
1/2 inches long, spaced
6 in. on center and
maximum of 2 in. from
corners (minimum of 2
screws per side). Screw
into rear portion of the
studs so as to avoid
space conflicts with
the grille assembly.
Factory Supplied
Thermal Blanket
Grille
(Supplied
by others)
7 1/2 in.
Max.
Masonry
floor
Damper
7 1/2 in.
Max.
Damper
6 1/2 in.
Max.
“Duct Terminates” Metal Stud
Fire damper or
combination fire
smoke damper
“Duct Terminates” Wood Stud
(Duct Terminates)
Note: Both installations for vertical mount.
Figure 1: Installation configurations for ‘Out of Wall’ combination fire smoke dampers.
ODFD-XXX, OFD-XXX, and OSSFD-XXX: Figure 2
shows installations that are also approved for curtain fire
dampers. For access to inspect the damper and fusible
link, refer to the requirements of NFPA 90A.
25
2. CLEARANCE REQUIREMENTS
There is no minimum clearance requirement between
the wall/floor opening and the sleeve exterior (with
thermal blanket attached). However, to facilitate
installation, clearances between the wall/floor opening
and the damper sleeve are recommended. although
there is no maximum allowable clearance, the minimum
overlap requirements between the wall/floor and the
flange/retaining angle must be met. On grill mount
installations the flange must overlap the wall/floor by
1⁄2 in. (13mm). On continuous duct installations, the
retaining angles must overlap the wall/floor by 1 in.
(25mm). Because no clearances are required between
the wall/floor opening and the sleeve, dampers may not
be installed in the plane of the wall using this installation
method.
Figure 2
Concrete or
Masonry Wall
Concrete or
Masonry
Wall
Wood
Stud
Flange
7 1/2 in. (191mm)
maximum
7 1/2 in.
(191mm)
max.
Damper
Wood
Stud
Steel Stud
Flange
Steel Stud
Damper
Factory Supplied
Thermal Blanket
Flange
Retaining
Angle
Alternate
Retaining
Angle
Location
Type A- Vertical Mount, Duct Terminates
Single Angle Method
Factory
Supplied
Thermal
Blanket
Type A- Vertical Mount, Duct Terminates
Flange Method
Damper
Factory Supplied
Thermal Blanket
Retaining
Angle
7 1/2 in. (191mm)
max.
Concrete or
Masonry
Floor
Flange
Masonry or
Concrete
Floor
Type A - Horizontal Mount Above Floor/Wall,
Duct Terminates Single Angle Method
Factory Supplied
Thermal Blanket
7 1/2 in. (191mm)
max.
Retaining
Angle
Damper
Concrete or
Masonry
Floor
Type A - Horizontal Mount Below Floor/Wall, Duct
Terminates Flange Method
7 1/2 in. (191mm)
max.
Factory Supplied
Thermal Blanket
Damper
Type A - Horizontal Mount Below Floor/Wall, Duct
Terminates Single Angle Method
26
Figure 2 cont...
Masonry or
Concrete Wall
Wood
Stud
7 1/2 in. (191mm)
max.
Damper
Factory Supplied
Thermal Blanket
Retaining
Angle
Concrete or
Masonry Wall
Metal
Stud
Damper
7 1/2 in. (191mm)
maximum
Factory Supplied
Thermal Blanket
Retaining
Angle
Retaining
Angle
Alternate Retaining
Angle Location
Type A- Vertical Mount, Thru Duct with
Single Retaining Angle
Type A- Vertical Mount, Thru Duct with Two
Retaining Angles
Damper
Retaining
Angle
Wood Stud
Damper
Retaining
Angle
7 1/2 in. (191mm)
max.
Masonry or
Concrete
Floor
7 1/2 in. (191mm)
maximum
Concrete or
Masonry
Floor
Factory Supplied
Thermal Blanket
Retaining
Angle
Factory Supplied
Thermal Blanket
Type A - Horizontal Mount Above Floor/Wall,
Thru Duct with Single Retaining Angle
Type A - Horizontal Mount Above Floor/Wall,
Thru Duct with Two Retaining Angles
Retaining
Angle
Retaining
Angle
Concrete or
Masonry Floor
Masonry or
Concrete
Floor
Retaining
Angle
Factory Supplied
Thermal Blanket
7 1/2 in. (191mm)
max.
7 1/2 in. (191mm)
maximum
Factory Supplied
Thermal Blanket
Damper
Type A - Horizontal Mount Below Floor/Wall, Thru
Duct with Single Retaining Angle
Type A - Horizontal Mount Below Floor/Wall, Thru
Duct with Two Retaining Angles
27
Figure 2 cont....
Wood
Stud
7 1/2 in.(191mm)
Maximum
Damper
Metal
Stud
Masonry or
Concrete
Damper
7 1/2 in. (191mm)
maximum
Wood Stud
Factory Supplied
Thermal Blanket
Steel
Stud
Retaining
Angle
Retaining
Angle
Flange
Type B2- Vertical Mount, Thru Duct with
Two Retaining Angles
Factory Supplied
Thermal Blanket
Masonry or
Concrete
Damper
Type B2- Vertical Mount, Duct Terminates
Flange Method
Factory Supplied
Thermal Blanket
Retaining
Angle
7 1/2 in. (191mm)
maximum
Flange
Masonry or
Concrete
Masonry or
Concrete
Retaining
Angle
Factory Supplied
Thermal Blanket
Type B2 - Horizontal Mount Above Floor/Wall,
Thru Duct with Two Retaining Angles
7 1/2 in. (191mm)
maximum
Damper
Factory Supplied
Thermal Blanket
Retaining
Angle
Masonry or
Concrete
Type B2 - Horizontal Mount Below Floor/Wall, Duct
Terminates Flange Method
7 1/2 in. (191mm)
maximum
Retaining
Angle
Damper
Type B2 - Horizontal Mount Below Floor/Wall, Thru
Duct with Two Retaining Angles
28
Figure 2 cont....
7 1/2 in. (191mm)
maximum
Damper
Wood
Stud
Concrete or
Masonry
Damper
7 1/2 in. (191mm)
maximum
Metal Stud
Concrete or
Masonry
Factory Supplied
Thermal Blanket
Retaining
Angle
Factory Supplied
Thermal Blanket
Retaining
Angle
Alternate Retaining
Angle Location
Alternate Retaining
Angle Location
Type B2- Vertical Mount, Thru Duct with
Single Retaining Angle
Type B2- Vertical Mount, Duct Terminates
Single Angle Method
Damper
Damper
Factory Supplied
Thermal Blanket
Retaining
Angle
Retaining
Angle
7 1/2 in. (191mm)
maximum
Concrete or
Masonry
7 1/2 in. (191mm)
maximum
Concrete or
Masonry
Type B2 - Horizontal Mount Above Floor/Wall,
Duct Terminates Single Angle Method
Factory Supplied
Thermal Blanket
Type B2 - Horizontal Mount Above Floor/Wall,
Thru Duct with Single Retaining Angle
Retaining
Angle
Factory Supplied
Thermal Blanket
Concrete or
Masonry
Retaining Angle
Concrete or
Masonry
7 1/2 in. (191mm)
maximum
Factory Supplied
Thermal Blanket
7 1/2 in. (191mm)
maximum
Damper
Damper
Type B2 - Horizontal Mount Below Floor/Wall, Duct
Terminates Single Angle Method
Type B2 - Horizontal Mount Below Floor/Wall, Thru
Duct with Single Retaining Angle
29
Figure 2 cont....
Damper
Wood
Stud
7 1/2 in. (191mm)
maximum
Wood Stud
7 1/2 in. (191mm)
maximum
Metal Stud
Flange
Concrete or
Masonry
Concrete or
Masonry
Factory Supplied
Thermal Blanket Retaining
Angle
Metal
Stud
Retaining
Angle
Factory Supplied
Thermal Blanket
Type C2- Vertical Mount, Thru Duct with
Two Retaining Angles
Type C2- Vertical Mount, Duct Terminates
Flange Method
Damper
Factory Supplied
Thermal Blanket
Retaining
Angle
Factory Supplied
Thermal Blanket
7 1/2 in. (191mm)
maximum
Damper
7 1/2 in. (191mm)
maximum
Concrete or
Masonry
Concrete or
Masonry
Retaining
Angle
Flange
Type C2 - Horizontal Mount Above Floor/
Wall, Duct Terminates Flange Method
Type C2 - Horizontal Mount Above Floor/Wall,
Thru Duct with Two Retaining Angles
Flange
Retaining
Angle
Concrete or
Masonry
Concrete or
Masonry
7 1/2 in. (191mm)
maximum
Factory Supplied
Thermal Blanket
Retaining
Angle
Damper
7 1/2 in. (191mm)
maximum
Factory Supplied
Thermal Blanket
Damper
Type C2 - Horizontal Mount Below Floor/Wall, Thru
Duct with Two Retaining Angles
Type C2 - Horizontal Mount Below Floor/Wall, Duct
Terminates Flange Method
30
Figure 2 cont....
Wood Stud
3. DUCT TO SLEEVE CONNECTIONS
Dampers are supplied with actuators (on applicable
models) and sleeves from the factory and can be installed
without the need for additional field installed sleeves.
Metal Stud
7 1/2 in. (191mm)
maximum
Sleeve gauges of 20-14 (.9mm - 2mm) are to be used.
UL Standard 555 requires all ducts to terminate at fire
damper sleeves. Sleeve thickness must not be less than
the gauge of the connecting duct.
Concrete or
Masonry
Duct to sleeve breakaway connections must be of the
type described on page 33. Factory furnished round duct
collars on type R and CR dampers are also considered to
be breakaway connections and may be used.
Factory Supplied
Thermal Blanket
Alternate Retaining
Angle Location
Type C2- Vertical Mount, Thru Duct with
Single Retaining Angle
Flange
Thermal Blanket
(installed around entire
outside surface of sleeve)
Damper
Factory Supplied
Thermal Blanket
Retaining
Angle
7 1/2 in. (191mm)
maximum
Wall
Concrete or
Masonry
Figure 3: Sleeved damper with Thermal
Blanket (duct termination).
4. S
ECURING THE DAMPER/SLEEVE ASSEMBLY TO
WALL OPENINGS.
Damper/sleeve assemblies must be installed in wall
openings using flanges and sheet metal screws as
illustrated and described below.
Type C2 - Horizontal Mount Above Floor/Wall,
Thru Duct with Single Retaining Angle
• Flange on front (grille end) of sleeve must be a minimum
of 16 gauge (1.5mm) steel and have a 5⁄8 in. (16mm)
minimum flange leg (refer to Figure 3). Using #10
(19mm) sheet metal screws, screw from inside of sleeve
through the rear portion of the studs (as shown in
Figure 1). Space screws a maximum of 6 in. (152mm)
on center and a maximum of 2 in. (51mm) from the
corners (minimum of 2 screws per side). No retaining
angles are required on the side of wall opposite from the
grille.
Retaining
Angle
Concrete or
Masonry
7 1/2 in. (191mm)
maximum
• Retaining angles for 11/2 hour rated dampers with a
width and height 48 in. (1219mm) or less must be a
minimum of 20 ga. (1mm). Retaining angles for all 3 hour
rated dampers and all dampers with a width or height
greater than 48 in. (1219mm) must be a minimum of 16
gauge (1.5mm). The leg of the retaining angle on the
damper sleeve shall be a minimum of 11/4 in. (32mm).
The leg of the retaining angle on the wall/floor shall be
long enough to cover the annular space and overlap the
wall/floor by a minimum of 1 in. (25mm)(see Figure 4).
Factory Supplied
Thermal Blanket
Damper
Type C2 - Horizontal Mount Below Floor/Wall, Thru
Duct with Single Retaining Angle
31
4. S
ECURING THE DAMPER/SLEEVE ASSEMBLY TO
WALL OPENINGS continued....
Retaining Angle
• Retaining angles must be attached to the sleeve using
one or more of the following methods of attachment:
• Tack or spot welds
• #10 (19mm) sheet metal screws
• 1⁄4 in. (6mm) bolts and nuts
• 3⁄16 in. (4.7mm) steel pop rivets
Thermal Blanket
(installed around
entire outside
surface of sleeve)
2i
n.
6i
n.
Attachments must be spaced a minimum of 6 in.
(152mm) on center and a maximum of 2 in. (51mm) from
corners. The angles must be attached to all 4 sides of
the sleeve. A minimum of two attachments are required
on each side, top and bottom. The angles need not be
attached to each other at the corners.
6i
n.
2i
n.
Ma
x.
Ma
x.
Ma
x.
Ma
x.
Wall
Caution! Do not tear the thermal blanket during
Figure 4: Sleeved damper with Thermal
Blanket (duct continuation).
installation.
Dampers are tested for correct operation and are
square and straight before shipment from the factory.
Dampers must be installed square and straight and
must not be twisted or racked. Failure to install the
damper square and straight may prevent the damper
blades from operating open and closed.
Note: Thermal blanket is riveted to the damper sleeve and
the seam is taped with acrylic adhesive tape, FSK facing
tape 152 5CWnt, manufactured by Venture Tape Company.
5. ACTUATOR CONNECTIONS
Electrical and/or pneumatic connections to damper
actuators should be made in accordance with wiring
and piping diagrams developed in compliance with
applicable codes, ordinances and regulations (see
Electrical Guidelines).
24 in. o.c.
Maximum
(metal studs)
24 in. o.c.
Maximum
(metal studs)
Ceiling Runner
12 in.
6R
ecommended Preparation of Openings in
Wood and Metal Stud Walls
• Frame wall openings as shown (see Figure 5 & 5A)
24 in. o.c.
Maximum
• Gypsum wall board must be fastened 12 in. (305mm)
on center to all stud and runner flanges surrounding
opening (see Figure 5 & 5A).
• Prepare opening between studs and sleeve assembly
as shown (Figure 6 & 7).
2 Panhead
Screws
• All construction and fasteners must meet the
requirements of the appropriate wall design (See UL
Fire Resistance Directory) and/or local codes.
16 in. o.c.
Maximum
(wood studs)
16 in. o.c.
Maximum
(wood studs)
Floor Runner
Figure 5
Second set of studs are not required on openings
36 in. x 36 in. (914mm x 914mm) or smaller.
Figure 5A
Metal stud only
32
2 in. (51mm)
2 in. (51mm)
Damper
Sleeve
Metal Stud Construction
exposed steel surfaces need
not be covered with gypsum
wallboard.
Wooden Stud Construction
Gypsum Wallboard
Gypsum Wallboard
Stud or Runner
Stud or Runner
Retaining
Angle
Retaining
Angle
1 in. Min.
1 in. Min.
Damper
Sleeve
In metal stud construction,
exposed steel surfaces need
not be covered with gypsum
wallboard.
Damper
Sleeve
Figure 6
In wood stud construction,
gypsum wallboard must cover
all wood stud surfaces.
Figure 7
Wooden Stud Construction
Breakaway Connections
Gypsum Wallboard
Traditional Breakaway Style Transverse Joints
Stud or Runner
Transverse joints illustrated at right have
always been
approved as breakaway connections. SMACNA testing
has also approved
the following variations as breakaway
Retaining
Angle
connections.
Plain “S” Slip
Hemmed “S” Slip
Double “S” Slip
1 in. Min.
• The breakaway connections shown (Figure 8) can
be applied with maximum of
In wood
stud construction,
Damper (19mm)
two #10
sheet
metal
Sleeve
gypsum wallboard must cover
screws on each
side
on
all wood
studand
surfaces.
Drive Slip Joint
the bottom located in the
Figure 7
center of the slip pocket and
penetrating both sides of the
slip pocket.
Inside Slip Joint
Standing “S” (Alt.)
• Transverse joints illustrated can be applied as top
and bottom joints with Drive Slip - side joints in duct
heights up to 20 inches (508mm)
See Figure 7.
• Ducts to 22 in. (558mm) wide (or dia.) and smaller
shall have three screws.
• Ducts larger than 22 in. (558mm) wide (or dia.) up to
and including 36 in. (914mm) wide (or dia.) shall have
five screws.
Standing “S”
(Bar Reinforced)
Standing “S” (Alt.)
Standing “S”
(Angle Reinforced)
Figure 8
Fire Damper Sleeve
6 in. long 1/16 in. max.
thickness plastic cleats;
12 in. c-c (min. 1 per side)
Round and Oval Duct Breakaway Connections
Round or flat oval ducts connected to Type R or O damper
collars shall be attached with #10 (19mm) sheet metal
screws as follows:
Standing “S”
Flanged system angles
(Attach per
manufacturer's
instructions)
Do not bolt corners
Neoprene gasket
between all angles
NOTE: All breakaway connections described may have
duct sealant applied, PA2084T duct sealant
adhesive manufactured by Precision, DP1010
water base duct sealant manufactured by Design
Polymetrics, Grey Pookie, Ductmate PROseal®,
or CL Ward S Seal in accordance with SMACNA
recommendations.
Duct
Figure 9
Proprietary Flange System Breakaway Connections
(TDC by Lockformer, TDF by Engle)
TDC and TDF systems are approved as breakaway
connections when installed as described in the TDC or TDF
addendum to the SMACNA Duct Construction Standards
except the corners may not be bolted. Standard 6 in.
(152mm) metal clip may be used
with spacing as shown in Figure
10. 3/8 in. (9.5mm) metal bolts
and nuts may be used to fasten
Sleeve
Duct
together corner pieces (see
Figure 11).
Manufactured Flanged System Breakaway
Connections
Flanged connection systems manufactured by Ductmate,
Ward, and Nexus are approved as breakaway connections
when installed as illustrated (Figure 9).
Clip Spac
6 in
60 in. Duct
4 Req’d.
48 in. Duct
3 Req’d.
36 in. Duct
3 Req’d.
24 in. Du
2 Req’d
Typical TDC/TDF joint
33
18 in
S
1
Clip Spacing
Duct End
Flange
Std. Clip
Length
9 in.
6 in.
6 in.
Corner Piece
6 in.
60 in. Duct
4 Req’d.
7 in.
48 in. Duct
3 Req’d.
7 in.
5 in.
3/8 in. bolt
(optional)
5 in.
36 in. Duct
3 Req’d.
Duct
5 in.
5 in.
24 in. Duct
2 Req’d.
C/TDF joint
18 in. Duct
Smaller
1 Req’d.
&
Figure 11
CL
Duct
Figure 10:
Detail of proprietary flanged system
breakaway connections.
Damper Maintenance
Dampers do not typically require maintenance as long as they are kept dry and clean. If cleaning is necessary, use mild
detergents or solvents. If lubrication is desired for components such as axle bearings, jackshaft bearings and jamb seals, do
not use oil-based lubricants or any other lubricants that attract contaminants such as dust.
Dampers and their actuator(s) must be maintained, cycled, and tested a minimum in accordance with:
• The latest editions of NFPA 80, 90A, 92A, 92B, 101, 105, UL864, AMCA 503-03 and local codes.
• Actuator manufacturer recommendations.
Damper Troubleshooting
The following is a possible cause and correction list for common concerns with the dampers.
Symptom
Possible Cause
Corrective Action
Frame is 'racked' causing blades
to bind on jamb seals
Adjust frame such that it is square and plumb
Actuator linkage loose
Close damper, disconnect power, adjust and
tighten linkage
Defective motor
Replace
Screws in damper linkage
Damper installed too far into wall. Move out
to line as designated on damper label
Contaminants on damper
Clean with a non-oil based solvent (see
Damper Maintenance)
RRL or TOR sensor
tripped
Heat
Push reset button located on backside of
RRL or TOR
Damper does not
operate
No power supplied to the actuator
Add power supply
Damper does not
fully open and/or
close
Our Commitment
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications without
notice.
Specific Greenheck product warranties are located on greenheck.com within the product area tabs and in the Library
under Warranties.
®
Phone: (715) 359-6171 • Fax: (715) 355-2399 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com
461337• ODFD OFD Rev. 14, August 2013
34
Copyright 2013 © Greenheck Fan Corporation
Return to Table of Contents
Document number 474015
Single Side Retaining Angle
®
Installation Instructions Supplement
FD & DFD Series
Refer to:
‘Installation Instructions for FD, DFD, SSFD, & KFD Models’
(Part #452763)
or
‘Installation Instructions for FSD-XXX, DFD-XXX, SSFSDXXX & CFSD-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.
11/2 Hour Fire Dampers and
FSD Series
11/2 Hour Combination Fire
Smoke Dampers
“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
Single side retaining angle
These instructions apply to 11/2 hour rated combination
fire smoke dampers and curtain fire dampers mounted
in masonry or block walls, metal stud walls, wood
stud walls or concrete floors. Specific requirement in
these instructions are mandatory. These instructions
meet the requirements of NFPA 90A (Standard for
the Installation of Air Conditioning and Ventilating
Systems).
Vertical mount dampers up to a maximum size of 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) or horizontal mount dampers up
to a maximum size of 144 in. W x 96 in. H (3658mm x
2438mm) may be installed as illustrated below. Larger
damper assemblies require retaining angles on both
sides of the partition.
Note: Model specific size limits can be found in the
base installation instruction documents noted above.
dampers with a width or height greater than
48 in. (1219mm) must be a minimum of 16 ga.
(1.5mm). The leg of the retaining angle on the
damper sleeve shall be a minimum of 1 1/4 in.
(32mm). The leg of the retaining angle on the
wall/floor shall be long enough to cover the
annular space and overlap the wall/floor by at
least 1 in. (25mm).
For metal stud partitions only, the single-side
mounting angle may be directly attached to
the metal stud prior to the installation of the
drywall.
• Retaining angles must be attached to the
sleeve using one of the methods shown below:
• tack or spot welds
• #10 sheet metal screws
• 1/4 in. (6mm) nuts and bolts
• Retaining angles must be attached to the
partition using one of the methods shown
below:
• Drywall screws of a length such that the
screw engages the steel stud/track by 1/2
in. (13mm) (steel framing).
1. Clearance Requirements
On vertical mount single side angle installations there
are no minimum clearance requirements between
the wall opening and the damper sleeve. However,
to facilitate installation, clearances between the wall
opening and the damper sleeve are recommended.
On horizontal mount single side angle installations a
minimum clearance is required between the outside of
the damper sleeve and the floor opening of 1/8 in. per
foot (3mm per .3m) of damper width and 1/8 in. per
foot (3mm per .3m) height with a minimum clearance
of 1/4 in. (6mm). The maximum overall clearance is 1
1/2 in. (38mm),
2. Securing the Damper/Sleeve Assembly to Wall/
Floor Opening
Retaining angles must be attached to both the sleeve
and the partition (see figures 1-8).
•R
etaining angles for dampers with a width and
height of 48 in. (1219mm) or less must be a
minimum of 20 ga. (1mm). Retaining angles for
35
2. Securing the Damper/Sleeve Assembly to the Wall/Floor opening cont.......
• Drywall screws of a length such that the
screw engages the wood stud by 13/4 in.
(44mm) (wood framing).
• Steel anchors or self tapping concrete
screws penetrating masonry or block
11/4 in. (31mm).
• A minimum of two connections per side are
required. Additional connections must be
made at a maximum of 12 in. (305mm) O.C.
(on center) maximum for openings of 48 in. W
x 36 in. H (1219mm x 914mm) and less, and 6
in. (152mm) O.C. (on center) 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.
Damper
Sleeve
Damper
Sleeve
2 1/2 in. Min.
Stud or Runner
2 1/2 in. min.
Stud or Runner
1/2
in. UL Classified
Gypsum Wallboard (see
UL Rated Wall Design
for Additional Details)
Angle Fastener
(see Section 2)
Two layers of 1/2 in. UL
Classified Gypsum
Wallboard (see UL
Rated Wall Design for
Additional Details)
Angle Fastener
(See Section 2)
Figure 1: 1 Hour Wall Rating
Figure 2: 2 Hour Wall Rating
Two layers of 1/2 in. UL
Classified Gypsum
Wallboard (see UL
Rated Wall Design for
Additional Details)
1/ 2
2 1/2 in. Min.
Metal Stud
or Runner
Damper
Sleeve
in. UL Classified
Gypsum Wallboard (see
UL Rated Wall Design
for Additional Details)
2 1/2 in. min.
Metal Stud
or Runner
Damper
Sleeve
Angle Fastener
(see Section 2)
Angle Fastener
(See Section 2)
Figure 3: 1 Hour Wall Rating
Figure 4: 2 Hour Wall Rating
Damper
Sleeve
Damper
Sleeve
2 1/2 in. Min.
Stud or Runner
2 1/2 in. Min.
Stud or Runner
1/ 2
in. UL Classified
Gypsum Wallboard (see
UL Rated Wall Design
for Additional Details)
1/ 2
in. UL Classified
Gypsum Wallboard (see
UL Rated Wall Design
for Additional Details)
Angle Fastener
(see Section 2)
Angle Fastener
(see Section 2)
Figure 6: 2 Hour Wall Rating
Figure 5: 1 Hour Wall Rating
36
2. Securing the Damper/Sleeve Assembly to the Wall/Floor opening cont.......
Top Side
Damper
Sleeve
Angle Fastener
(see Section 2)
Damper
Sleeve
Masonry or
Concrete Wall
Masonry or
Concrete Floor
Angle Fastener
(see Section 2)
Figure 7: Masonry or Concrete Wall
Figure 8: Concrete Floor
Note: For horizontal installations, retaining angles must be
mounted on top side of partition.
Space screws a maximum of 6 in. (152mm) on center
and a maximum of 2 in. (51mm) from the corners
(minimum of 2 screws per side). See Figure 9 and
Figure 10.
Grille Installations (Dampers up to 36 in. x 36 in.
[914mm x 914mm] maximum)
• Angle legs may be reversed and one leg inserted
into the wall/floor opening. Retaining angles used in
conjunction with grille installations must be a minimum
of 20 gauge (1mm) steel and have a minimum of
5/8 in. x 1 in. (15mm x 25mm) 20 gauge (1mm) steel.
Note: Screws used to attach grille are allowed to
penetrate reversed angle leg.
Damper
Sleeve
Damper
Sleeve
#10 sheet metal screws
spaced 6 in. on center
and a maximum of 2 in.
from the corners
(minimum of 2 screws per
side). Screw into studs so
as to avoid space
conflicts with the grille
#10 sheet metal screws
spaced 6 in. on center
and a maximum of 2 in.
from the corners
(minimum of 2 screws per
side). Screw into studs so
as to avoid space
conflicts with the grille
2 1/2 in. Min.
Stud or Runner
Angle Fastener
(see Note 2)
Grille (supplied
by others)
1 /2
in. UL Classified
Gypsum Wallboard (see
UL Rated Wall Design
for Additional Details)
2 1/2 in. Min.
Stud or Runner
Angle Fastener
(see Note 2)
Retaining Angle
(See Section 2)
Grille (supplied
by others)
Figure 9: 1 Hour Wall Rating
Two layers of
1/2 in. UL Classified
Gypsum Wallboard (see
UL Rated Wall Design
for Additional Details)
Retaining Angle
(See Section 2)
Figure 10: 2 Hour Wall Rating
Copyright © 2013 Greenheck Corporation
474015 Single Side Retaining Angle Suppl Rev. 3 Jan 2013
37
DATE
NOTES
38
DATE
NOTES
39
Copyright ©2013 Greenheck Fan Corporation
826251 Curtain Packet
August 2013