FD and DFD Curtain Fire Dampers with Integral Sleeves - Greenheck

Document Number 453946
FD & DFD 150X Models
®
1 1 ⁄2 Hour
Curtain Fire Dampers
Vertical or Horizontal Mount
Installation, Operation and Maintenance Instructions
FD and DFD 150X Series 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 Codes
CSFM California State Fire Marshal
Fire Damper Listing (#3225-0981:102)
New York City (BSA/MEA listing #260-91-M)
L
S TATE
S
I S
T
STATE OF CALIFORNIA
FIR E MAR S HALL
E R V
I N G
E
I C
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.
“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:
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
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.
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.
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.

Table of Contents
Pre-Installation Guidelines.......................................................................................................................................... 2
Installation................................................................................................................................................................3-5
Breakaway Connections............................................................................................................................................. 6
Installation for Steel Stud Connection Option........................................................................................................... 7
Damper Maintenance.................................................................................................................................................. 8
Damper Troubleshooting............................................................................................................................................. 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 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.
2

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 3225-
981:102, and New York City BSA/MEA listing 260-91-M
as they 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.
Retaining
Angle
2 in. Max.
Min. 1 in.
Overlap*
Wall or
Floor
Retaining
Angle
Sleeve
Duct
6 in. Max.
Damper
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.
6 in. Max.
2 in. Max.
*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.
• 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.
3

4. CONNECTING DUCTS TO THE FIRE DAMPER
All duct connections to FD & DFD 150X series extended frame dampers must be “breakaway” type connections. All
connections shown 1/4 on in. minimum page 5 & 6 are 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
1/4 in. minimum
total clearance
Retaining Angles
(See Section 4)
Wall or Floor
See Section 2
Maximum
6 in.
Maximum
6 in.
Maximum
6 in.
Maximum Wall or Floor
6 in.
Wall or Floor
Maximum
6 in.
Maximum
6 in.
“K” side
Wall or Floor
Sleeve
(see sections 2 & 3)
See Section 2
Damper
Duct
Duct
Duct
Retaining Angles
Retaining Angles
(See Retaining Section Angles 3)
(See Section 3)
(See Section 3)
Damper
Damper Damper
Type A
Type A
Wall Wall or Floor or Floor
Wall or Floor
Type A
Retaining Angles
(See Section 4)
See Section 2
Damper
Damper
Damper
“K” side
Wall or
Floor
See Section 2
Damper
Sleeve
(see sections 2 & 3)
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
On types furnished R & duct CR factory collar
furnished qualifies duct as breakaway collar
qualifies connection. as breakaway
connection.
Type B
Type B
Wall or Floor
Wall or Floor
Type B
Duct
Duct
Damper
“K” side
Wall or
floor
Type C, CO, CR, & R
Sleeve
Duct
Damper
Duct
Type C, CO, CR, & R
Damper
On types R & CR factory
furnished duct collar qualifies
as breakaway connection, see
Section 5
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.
4
Table 1
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.

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
2 in. (51mm)
2 in. (51mm)
16 in. o.c.
Maximum
(wood studs)
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.
Figure 4A
Metal Stud Construction
Metal stud only
Wooden Stud Construction
Gypsum Wallboard
Gypsum Wa llboard
Stud or Runner
Stud or Runner
Retaining
Angle
Retaining
Angl e
1 in. Min.
1 in. Min.
Damper
Sleeve
In metal stud construction,
exposed steel surfaces need
not be covered with gypsum
wallboard.
Wooden Stud Construction
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.
5

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.
• 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.
Plain “S” Slip Hemmed “S” Slip Double “S” Slip
Inside Slip Joint Standing “S” Standing “S” (Alt.)
Standing “S” (Alt.) Standing “S” Standing “S”
(Bar Reinforced) (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.
6 in. long 1/16 in. max.
thickness plastic cleats;
12 in. c-c (min. 1 per side)
Flanged system angles
Fire Damper Sleeve
(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)
Duct
Figure 7:
Neoprene gasket
between all angles
Detail of manufactured flanged system
breakaway connections.
Do not bolt corners
60 in. Duct
4 Req’d.
Clip Spacing
6 in.
7 in.
Std. Clip
Length
9 in.
6 in. 6 in.
7 in.
Duct End
Flange
Corner Piece
Sleeve
Typical TDC/TDF joint
Duct
48 in. Duct
3 Req’d.
36 in. Duct
3 Req’d.
24 in. Duct
2 Req’d.
18 in. Duct &
Smaller
1 Req’d.
5 in. 5 in.
5 in.
CL
Duct
5 in.
3/8 in. bolt
(optional)
Figure 8:
6
Detail of proprietary flanged system breakaway
connections.
Figure 9: Detail of bolted corner.

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
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).
2. 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
hours. The following wall design 3 numbers (as detailed
in the UL Fire Resistance Directory) are appropriate
for fire damper installations using this SSC option:
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
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.
4. APPLY WALLBOARD AFTER DAMPER
INSTALLATION
After damper is installed, wallboard shall be applied
to steel stud framework in the manner required by
the wall design per the UL Fire Resistance Directory
listing. Around the damper perimeter use a minimum
of 2 connections per side, spaced 12 in. (305mm)
maximum and located a maximum of 2 in. (51mm)
from each corner. No additional retaining angles are
required to complete the installation.
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.
Item
3 Description
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)
2
3
3
3
6
3
6
3
5
3
5
1
1
Retaining
Bar
1
Retaining
Bar
1
4
4
Top Cross-section View
4 2
Top Cross-section ViewSide Cross-Section View
of Damper in Wall
3
5
4 2
Side Cross-Section View
of Damper in Wall
3
6
7
1
Retaining
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 Possible Cause Corrective Action
Damper does not fully open and/or
fully close
Frame is 'racked' causing blades to
bind on jamb
Screws in damper linkage
Contaminant's on damper
Link separated Heat Replace link
Adjust frame such that it is square
and plumb
Locate screws and remove
Clean with a non-oil based solvent
(see Damper Maintenance)
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 Copyright 2013 © Greenheck Fan Corporation
8