Greenheck ODFD Series User manual

These instructions apply to 11⁄2hour rated fire and
combination fire smoke dampers mounted in: 1)
masonry, block, or stud walls and 2) concrete floors.
Specific requirements in these instructions are
mandatory. Dampers must be installed in accordance
with these instructions to meet the requirements of UL
555 and/or UL 555S.
Note: Combination fire smoke and fire dampers
are manufactured and labeled for either vertical or
horizontal installation. The dampers must be installed in
accordance with labeling.
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).
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.
Table of Contents
General Information . . . . . . . . . . . . . . . . . . 2
Installation Supplements. . . . . . . . . . . . . . . . 2
Electrical Guidelines . . . . . . . . . . . . . . . . . . 2
Pre-Installation Guidelines . . . . . . . . . . . . . . . 2
Preparation of Openings . . . . . . . . . . . . . . . . 3
Clearances Required Between Damper Sleeves & Wall/
Floor Openings. . . . . . . . . . . . . . . . . . . . . 4
Inserting Damper into Wall/Floor Openings . . . . . . 5
Securing the Damper/Sleeve Assembly to Wall/Floor
Openings . . . . . . . . . . . . . . . . . . . . . . . . 6
Duct to Sleeve Connection . . . . . . . . . . . . . . 6
Approved Breakaway Connections . . . . . . . . . . 7
Actuator and Temperature Response Device
Connections . . . . . . . . . . . . . . . . . . . . . . 9
Damper Maintenance . . . . . . . . . . . . . . . . .10
Damper Troubleshooting. . . . . . . . . . . . . . . .10
Notes . . . . . . . . . . . . . . . . . . . . . . . . . .11
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Out of Wall Fire and Combination Fire Smoke Dampers 1
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Document 461337
Out of Wall Fire and Combination Fire
Smoke Dampers
ODFD-XXX, OFD-XXX, OFSD-XXX SERIES
11⁄2Hour Fire & Combination Fire Smoke Dampers
Out of Wall or Out of Floor
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with these instructions will result in voiding of the product warranty and may result in personal injury
and/or property damage.

General Information
Electrical Guidelines
“UL CLASSIFIED (see complete marking on
product)”
“UL CLASSIFIED to Canadian safety standards
(see complete marking on product)”
Standard 555 & 555S (Listing #R13317)
The following items will aid in completing the damper
installation in a timely and effective manner.
1) Check the drawings for proper damper locations
within the building. Visually inspect the damper for
damage and verify that the Reusable Resettable Link
(RRL) is in place and has not activated if provided.
These electric links have a button for resetting.
Visually inspect the fusible link (if provided) 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 must be installed into duct or opening
square and free of twist or other misalignment. Out
of square, racked, twisted or misaligned installations
can cause excessive leakage and/or torque
requirements to exceed damper/actuator design.
4) 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
5) 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 the damper can
cause excessive leakage and/or torque requirements
to exceed damper/actuator design.
6) 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.
7) 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).
8) The Code Authority Having Jurisdiction (AHJ) must
evaluate and provide approval of final installation
where variations to these instructions are necessary.
Pre-Installation Guidelines
Installation Supplements
Refer to the appropriate Greenheck installation
supplements for special requirements
(www.greenheck.com links are underline):
• Fire Resistant Ventilated Duct Assembly
• Fusible Link Replacement
• Greenheck Test Switch
• Metal Stud in Shaftwall Partition
• Open or Close Indicator (OCI)
• Resettable Link (RRL)
• Resettable Link with Blade Indicator (RRL/OCI)
• Smoke Detector - Various Types
• Temperature Limited Override (TOR)
Online version to this installation instructions at
www.greenheck.com.
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
Important!
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.
Out of Wall Fire and
Combination Fire Smoke
Dampers Instructions
Out of Wall Fire and Combination Fire Smoke Dampers2
®

Preparation of Openings
• Frame wall openings as shown below (see Figure 1, 2, & 2A).
• Gypsum wall board must be fastened 12 in. (305 mm) on center (O.C.) to all stud and runner flanges surrounding
opening (see Figure 1, 2, & 2A).
• Prepare opening between studs and sleeve assembly as shown below (see Figure 3 & 4).
• 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
Figure 2
Second set of studs are not required on openings
36 in. x 36 in. (914mm x 914mm) or smaller.
Metal stud only
Figure 1
Floor Runner
Ceiling Runner
24 in. O.C.
Maximum
24 in. O.C.
Maximum
24 in. O.C.
Maximum
24 in. O.C.
Maximum
2 in.
2 in.
12 in.
2 Panhead
Screws
Ceiling
Runner
Detail
A-A
Floor
Runner
24 in. (610mm)
O.C. Max.
Figure 2A
Out of Wall Fire and Combination Fire Smoke Dampers 3
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Clearances Required Between Damper Sleeves & Wall/Floor Openings
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 1⁄2in. (13 mm). On continuous duct installations the retaining angles must overlap the
wall/floor by 1 in. (25 mm). Note that the dampers may not be installed within the plane of the wall using this
installation method.
Wooden Stud Construction
Gypsum Wallboard
Stud or Runner
In wood stud construction,
gypsum wallboard must cover
all wood stud surfaces.
#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.
Figure 3 - Wood Stud
Steel stud
Flange
#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.
Figure 4 - Metal Stud
Out of Wall Fire and Combination Fire Smoke Dampers4
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Inserting Damper into Wall/Floor Openings
Figures 5 - 7 show installations for grille access and continuing duct applications.
The following maximum distances outside the barrier apply:
• Steel stud and masonry barriers:
- 81⁄2in. (216 mm) provided the width and height of the damper are both 24 in. (610 mm) or less and the
damper sleeve is 20 gauge
- 71⁄2in. (191 mm) in all other instances
• Wood stud walls: 61⁄2in. (165 mm)
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 requirements of
NFPA 90A.
Figure 7: Continuing Duct - Horizontal or Vertical Mount
Figure 5: Through the Grille Access - Duct Terminates
Metal Stud
Wooden Stud Construction
Gypsum Wallboard
Stud or Runner
Retaining
Angle
(Duct Terminates)
In wood stud construction,
gypsum wallboard must cover
all wood stud surfaces.
Grille
(Supplied
by others)
Factory Supplied
Thermal Blanket
Fire damper or
combination fire
smoke damper
6 1/2 in.
Max.
#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.
Figure 6: Through the Grille Access - Duct Terminates
Wood Stud
Factory Supplied
Thermal Blanket
7 1/2 in. max. or
8 1/2 in. max.*
Damper
Masonry
floor
Steel stud
Flange
Grille
(Supplied
by others)
Factory Supplied
Thermal Blanket
7 1/2 in. Max.
or
8 1/2 in. Max.*
Damper
#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.
* The out of wall/floor limitation for
steel stud and masonry barriers
is 71⁄2in. (191 mm) except in
instances where both the width
and height of the damper is 24
in. (610 mm) or less and when
the damper sleeve is 20 gauge in
which case the damper may be
up to 81⁄2in. (216 mm) out of the
barrier.
For more installation methods that are approved for ODFD-XXX and OFD-XXX series, go to www.greenheck.com.
For access to inspect the damper and fusible link refer to the requirements of NFPA 90A.
Out of Wall Fire and Combination Fire Smoke Dampers 5
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Securing the Damper/Sleeve Assembly to Wall/Floor Openings
Damper/sleeve assemblies must be installed in wall openings using flanges and sheet metal screws as illustrated
and described below.
• Flange on front (grille end) of sleeve must be a minimum of 16 ga. (1.5 mm) steel and have 5⁄8in.(16 mm)
minimum flange leg (refer to Figure 8). Using #10 (19 mm) sheet metal screws, screw from inside of sleeve
through the rear portion of the studs (as shown in Figures 3 & 4). Space screws a maximum of 6 in. (152 mm)
O.C. and a maximum of 2 in. (51 mm) from the corners (minimum of 2 screws per side). No retaining angles are
required on the side of the wall opposite from the grille.
• Retaining angles for 11⁄2hour rated dampers with a width 48 in. (1219 mm) or less must be a minimum of 20 ga.
(1 mm). The leg of the retaining angle on the damper sleeve shall be a minimum of 11⁄4in. (32 mm). 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. (25 mm). See Figure 9.
• Retaining angles must be attached to the damper using one or more of the following methods of attachment:
- Tack or spot welds
- #10 (3⁄4in. [19 mm] max.) sheet metal screws
-
1⁄4in. (6 mm) bolts and nuts
-
3⁄16 in. (5 mm) steel pop rivets
Attachments must be spaced a maximum of 6 in. (152 mm) on center and a maximum of 2 in. (51 mm) from corners.
The angles must be attached to all four 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.
Caution! Do not tear the thermal blanket during installation.
Horizontal mount: thermal
blanket (installed around
entire outside surface
of sleeve)
Vertical mount: thermal
blanket (installed around
only on the top and sides)
Wall
Flange
Figure 8: Sleeved Damper with Thermal Blanket (duct
termination)
Retaining Angle
2 in. Max.
6 in. Max.
6 in. Max.
2 in. Max.
Wall
Horizontal mount: thermal
blanket (installed around
entire outside surface
of sleeve)
Vertical mount: thermal
blanket (installed around
only on the top and sides)
Figure 9: Sleeved Damper with Thermal Blanket (duct
continuation).
Out of Wall Fire and Combination Fire Smoke Dampers6
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Duct to Sleeve Connection
Sleeve Gauge and Connection Type Requirements
Sleeve Gauge Duct Dimension Type of Duct to Sleeve
Connection Permitted
14 ga. (0.075 in.) -
10 ga. (0.138 in.)
[2 mm - 3.5 mm]
All duct sizes Rigid or
Breakaway
16 ga. (0.060 in.)
[1.5 mm]
36 in. (914 mm) max. width
24 in. (610 mm) max. height
24 in. (610 mm) diameter
Rigid or Breakaway
16 ga. (0.060 in.)
[1.5 mm] All duct sizes
Breakaway only
18 ga. (0.048 in.)
[1.2 mm]
85 in. (2159 mm) wide and
over
20 ga. (0.036 in.)
[0.9 mm]
55 in. - 84 in. wide
(1397 mm - 2134 mm)
22 ga. (.030 in.)
[0.76 mm]
31 in. - 54 in. wide
(787 mm - 1372 mm)
24 ga. (0.024)
[0.6 mm]
13 in. - 30 in. wide
(330 mm - 762 mm)
26 ga. (0.018 in.)
[0.46 mm]
12 in. wide and under
(305 mm)
See Breakaway Connection section for additional information.
UL Standard 555 requires all ducts to terminate at fire damper sleeves.
The size of the damper/duct determines the required sleeve gauge and the required duct to sleeve connection (see
table to the right). The sleeve thickness must also not be less than the gauge of the connecting duct. Any duct
connection other than the breakaway connections described below are considered rigid.
Out of Wall Fire and Combination Fire Smoke Dampers 7
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Round and Oval Duct Breakaway
Connections
Factory furnished duct collars, type R and O, are also
considered breakaway (see Figure 12).
Round or flat oval ducts connected to Type R or O damper
collars shall be attached with #10 (19 mm) sheet metal
screws as follows:
• Ducts up to 22 in. (558 mm) wide (or dia.) and less shall
have three screws.
• Ducts larger than 22 in. (558 mm) wide (or dia.) up to
and including 36 in. (914 mm) wide (or dia.) shall have
five screws.
Wall or Floor
Sleeve
Duct Damper
Type B
Wall or Floor
Sleeve
Duct Damper
Type R, O
Type R and O
factory furnished
duct collars qualify
as breakaway
connections.
Figure 12: Type R and O Transition
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 10
Drive Slip Joint
Figure 11
Approved Breakaway Connections
All breakaway connections described below may utilize the following duct sealants: PA2084T duct sealant adhesive
manufactured by Precision, DP1010 water base duct sealant manufactured by Design Polymerics, Grey Pookie,
Ductmate PROseal®, or CL Ward S Seal in accordance with SMACNA recommendations.
Transverse Joints
The transverse joints shown below are approved as breakaway connections.
• A maximum of two #10 (19 mm) sheet metal screws on each side and on the bottom may be used. The screws
should be located in the center of the slip pocket and penetrate both sides of the slip pocket.
• Dampers up to 20 in. (508 mm) high may use transverse joints on the top and bottom and Drive Slip joints (see
Figure 11) on the sides.
Out of Wall Fire and Combination Fire Smoke Dampers8
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Fire Damper Sleeve
Neoprene or Butyl gasket
between all angles
Flanged system angles
(Attach per
manufacturer's
instructions)
Duct
3/8 in. bolts in
corners are optional
6 in. long metal cleat or 1/16 in.
max. thickness plastic cleat;
12 in. c-c (min. 1 per side)
Figure 13
Duct
Sleeve
6 in.
Std. Clip
Length
C
L
Duct
60 in. Duct
4 Req’d.
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.
Clip Spacing
Typical TDC/TDF joint
6 in. 6 in.
9 in.
7 in.7 in.
5 in. 5 in.
5 in.5 in.
Figure 15
Duct End
Flange
Corner Piece
3/8 in. bolt
(optional)
Figure 16
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. Standard 6 in. (152 mm) metal clips may be used with
spacing as shown in diagram (see Figure 14 & 15). A 3⁄8in. (9.5 mm) metal bolts and nuts may be used to fasten
together corner pieces (see Figure 16).
Duct
Sleeve
6 in.
Std. Clip
Length
C
L
Duct
60 in. Duct
4 Req’d.
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.
Clip Spacing
Typical TDC/TDF joint
6 in. 6 in.
9 in.
7 in.7 in.
5 in. 5 in.
5 in.5 in.
Figure 14
Manufactured Flanged System Breakaway Connections
Flanged connection systems manufactured by Ductmate, Durodyne, Ward, Nexus, Radiant T-35m, and MEZ are
approved as breakaway connections when installed as illustrated (see Figure 13).
Figure 17: Metal cleat method Figure 18: Screw method
TDC/TDF to Manufactured Flange
Flanged connection systems manufactured by Ductmate, Durodyne, Ward, Nexus, Radiant T-35m, and MEZ can
be connected to TDC and TDF system as an alternate breakaway connection. This alternate connection is covered
under the UL certification of the damper. See Supplement: Duct-Sleeve Connection (IOM #468502) for more
information.
Spot weld or Tek screw per
manufacturer instructions
Spot weld or Tek screw per
manufacturer instructions
Damper Sleeve
Damper Sleeve
Butyl Gasket
Butyl Gasket
TDC or TDF
Connection
TDC or TDF
Connection
Metal cleat
#10 x 3/4”
TEK Screw
Spot weld or Tek screw per
manufacturer instructions
Spot weld or Tek screw pe
r
manufacturer instructions
Damper Sleeve
Damper Sleeve
Butyl Gasket
Butyl Gasket
TDC or TDF
Connection
TDC or TDF
Connection
Metal cleat
#10 x 3/4”
TEK Screw
Out of Wall Fire and Combination Fire Smoke Dampers 9
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Actuator and Temperature Response Device Connections
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).
Temperature Response Device Connections
RRL: The RRL (resettable link device) incorporates a single thermostat. When the thermostat temperature is reached
the sensor interrupts power to the actuator and the actuator's spring return mechanism causes the damper to
close. Refer to Figure 17 for wiring of the RRL thermostat.
OCI: The OCI (open or closed indicator) option contains two single pole single throw switches used to indicate the
damper blade position. The switches provide a positive open and closed signal and can be used in conjunction
with remote indicator lights. Refer to Figure 18 for wiring of the OCI option.
RRL /OCI: The RRL/OCI performs the function of an RRL and OCI (see description above). Refer to Figure 19 for
wiring of the RRL/OCI option.
TOR: The TOR (temperature override device) option incorporates two thermostats with fixed settings (usually
165°F [74°C] and 350°F [177°C]). The primary sensor (the sensor with the lower temperature setting) can be
bypassed by an external contact closure allowing the damper to reopen until the secondary temperature is
reached (the sensor with the higher temperature setting). See Figure 20.
The TOR assembly contains two single pole single throw switches used to indicate damper blade position.
The switches provide a positive open and closed signal and can be used in conjunction with remote indicator
lights. See Figure 20 for wiring of the TOR thermostats and indicator switches.
If either the TOR or the RRL is ordered with a pneumatic actuator, an EP switch is required with an appropriate
electric power circuit to allow the electric thermostat to control the pneumatic actuator.
Figure 19: RRL Wiring Figure 20: OCI
Ratings (Figure 19, 20, 21, & 22)
Integral Switch Type: Single Pole, double throw
Electrical Capacity: 10 Amps, 1⁄3hp, 120 or 240 Vac
½ Amp, 125 Vdc;
¼ Amp 250 Vdc
5 Amps, 120 Vac “L” (lamp load)
1.0 Amps, 24 Vac
1.5 Amps, 24 Vdc
Temperature Limit: 165° F (standard primary sensor)
212° F (optional primary sensor)
250° F (secondary sensor )*
350º F (secondary sensor)*
* based on actuator temperature rating
Figure 21: RRL/OCI
Figure 22: TOR
Out of Wall Fire and Combination Fire Smoke Dampers10
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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, 92, 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
Damper does not fully
open and/or close
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
Out of Wall Fire and Combination Fire Smoke Dampers 11
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461337 • OFSD ODFD OFD, Rev. 23, January 2022 Copyright 2022 © Greenheck Fan Corporation12
As a result of our commitment to continuous improvement, Greenheck reserves the right to change specifications
without notice.
Product warranties can be found online at Greenheck.com, either on the specific product page or in the literature
section of the website at Greenheck.com/Resources/Library/Literature.
®
Phone: [phone] • Fax: [phone] • Parts: 800.355.5354 • E-mail: [email protected] • Website: www.greenheck.com
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