Page 1
Model FSD-212
Application
Model FSD-212 is a combination fire smoke damper with
3V style blades. This model is designed for operation
and dynamic closure in emergency fire smoke situations.
It is rated for airflow and leakage in either direction. The
FSD-212 may be installed vertically (with blades running
horizontal) or horizontally.
Ratings
UL 555 Fire Resistance Rating
Fire Rating: 11⁄2 hours
Dynamic Closure Rating: Actual ratings are size
dependent
Velocity: Up to 2,000 fpm (10.2 m/s)
Pressure: Up to 6 in. wg (1.5 kPa)
UL 555S Leakage Rating
Leakage Class: II
Operational Rating: Actual ratings are size
dependent
Velocity: Up to 2,000 fpm (10.2 m/s)
Pressure: Up to 6 in. wg (1.5 kPa)
Temperature: Up to 350°F (177°C) - depending
upon the actuator
Construction Standard Optional
Frame Material Galvanized steel -
Frame Material
Thickness
Frame Type
Blade Material Galvanized steel -
Blade Material
Thickness
Blade Type 3V -
Linkage
Axle Bearings 304SS -
Axle Material Plated steel -
Blade Seals Silicone -
Jamb Seals 304SS -
Closure Device RRL
Closure Temperature 165°F (74°C)
16 ga. (1.5mm) -
5 in. x 1in.
(127mm x 25mm)
hat channel
16 ga. (1.5mm) -
Plated steel out of airstream,
concealed in jamb
-
-
RRL/OCI, TOR,
PRV, or Fusible
Link
212°F (100°C),
250°F (121°C),
350°F (177°C)
Features:
• Frames are constructed with reinforced corners. Low
profile head and sill are used on sizes less than 17 in.
high (432mm).
• Blades are a double skin airfoil with full length structural
reinforcement.
Combination Fire Smoke Damper
Steel 3V Blades
UL 555S Leakage ClassII
UL 555 1 1/2 Hour Fire Resistance Rating
*Width and Height dimensions furnished approximately 1⁄4 in.
(6mm) undersize. Add sleeve thickness for overall sleeved
damper dimension.
Model FSD-212 meets the requirements for fire
dampers, smoke dampers and combination fire smoke
dampers established by:
National Fire Protection Association
NFPA Standards 80, 90A, 92A, 92B, 101 & 105
IBC International Building Codes
CSFM California State Fire Marshal
Fire Damper Listing (#3225-0981:103)
Leakage (Smoke) Damper Listing (#3230-0981:104)
New York City (MEA listing #260-91-M)
See complete marking on
product.
UL 555 and UL 555S
Classification R13317
W x H
Inches 8 x 6 32 x 50 or 36 x 48 144 x 96 128 x 100
Inches 8 x 6 36 x 48 144 x 48 128 x 48
Minimum
Size
mm 203 x 152
mm 203 x 152 914 x 1219 3658 x 1219 3251 x 1219
Installation instructions available at www.greenheck.com.
Single
Section
4 in. wg (1 kPa) pressure
813 x 1270 or
914 x 1219
6 in. wg (1.5 kPa) pressure
Maximum Size
Multiple Section
Horizontal Vertical
3658 x 2438 3251 x 2540
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Options FSD-212
5D 6D
5D
D
4 (W) (H)
3.14
5D 6D
• Factory mounted accessories
- Retaining angles
- Quick connect breakaway connections
- S & drive connections
- Access doors
• Greenheck test switches (GTS-1, -2, -3, -4)
• TOR (Temperature limited override)
• Sealed transitions and sleeves
• Security bars
• Smoke detectors
• Transitions: R, C, O
• Momentary test switch
• POC retaining angles
• RRL/OCI (Open closed indication switches)
Pressure Drop Data
This pressure drop testing was conducted in accordance with AMCA Standard 500-D using the three configurations shown. All
data has been corrected to represent standard air at a density of .075 lb/ft3(1.201 kg/m3).
Actual pressure drop found in any HVAC system is a combination of many factors. This pressure drop information along with an
analysis of other system influences should be used to estimate actual pressure losses for a damper installed in a given HVAC
system.
AMCA Test Figures
Figure 5.3 Illustrates a fully ducted damper. This configuration has the lowest pressure drop of the three test
configurations because entrance and exit losses are minimized by straight duct runs upstream and downstream of the
damper.
Figure 5.2 Illustrates a ducted damper exhausting air into an open area. This configuration has a lower pressure drop
than Figure 5.5 because entrance losses are minimized by a straight duct run upstream of the damper.
Figure 5.5 Illustrates a plenum mounted damper. This configuration has the highest pressure drop because of
extremely high entrance and exit losses due to the sudden changes of area in the system.
5D 6D
Figure 5.3
Figure 5.2
5D
D
4 (W) (H
)
3.14
Figure 5.5
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Pressure Drop FSD-212
5D 6D
5D
Figure 5.3
Figure 5.2
D
=
4 (W) (H)
3.14
Pressure Drop
Velocity (fpm)
Pressure Drop
Pressure Drop
4000 2.20 4000 1.16 4000 0.64 4000 0.92
12 in. x 12 in. (305mm x 305mm)
24 in. x 24 in. (610mm x 610mm)
36 in. x 36 in. (914mm x 914mm)
12 in. x 48 in. (305mm x 1219mm)
Pressure Drop
00
4000 1.62
48 in. x 12 in. (1219mm x 305mm)
Pressure Drop
Pressure Drop
Pressure Drop
Pressure Drop
40001.44 40000.63 4000 0.42 4000 0.70
12 in. x 12 in. (305mm x 305mm)
24 in. x 24 in. (610mm x 610mm)
36 in. x 36 in. (914mm x 914mm)
12 in. x 48 in. (305mm x 1219mm)
Pressure Drop
4000 1.14
48 in. x 12 in. (1219mm x 305mm)
5D 6D
5D
D
4 (W) (H)
3.14
Pressure Drop
Pressure Drop
Pressure Drop
Pressure Drop
4000 3.55 4000 2.17 4000 1.86 4000 2.11
12 in. x 12 in. (305mm x 305mm)
24 in. x 24 in. (610mm x 610mm)
36 in. x 36 in. (914mm x 914mm)
12 in. x 48 in. (305mm x 1219mm)
Pressure Drop
00
4000 2.67
48 in. x 12 in. (1219mm x 305mm)
AMCA Figure 5.2
Velocity (fpm)
Pressure Drop
(in. wg)
500 0.04 500 0.02 500 0.01 5000.01
1000 0.14 10000.07 10000.04 1000 0.06
15000.31 15000.16 15000.09 1500 0.13
2000 0.55 20000.29 20000.1620000.23
2500 0.86 25000.45 25000.2525000.36
30001.24 30000.65 30000.3630000.52
3500 1.69 3500 0.89 3500 0.49 3500 0.70
AMCA Figure 5.3
Velocity (fpm)
(in. wg)
(in. wg)
5D 6D
Velocity (fpm)
Figure 5.3
Velocity (fpm)
500 0.02 500 0.01 5000.01 5000.01
10000.09 10000.04 1000 0.03 1000 0.04
15000.20 1500 0.09 1500 0.06 1500 0.10
20000.36 20000.16 2000 0.11 2000 0.17
25000.56 2500 0.25 2500 0.17 2500 0.27
30000.81 30000.3530000.24 3000 0.39
3500 1.10 3500 0.48 3500 0.33 3500 0.53
(in. wg)
Velocity (fpm)
(in. wg)
Velocity (fpm)
(in. wg)
Velocity (fpm)
(in. wg)
(in. wg)
Velocity (fpm)
50
1000 0.10
1500 0.23
2000 0.41
2500 0.63
3000 0.91
3500 1.24
Velocity (fpm)
500 0.02
1000 0.07
1500 0.16
2000 0.29
2500 0.45
3000 0.64
3500 0.88
(in. wg)
.03
(in. wg)
AMCA Figure 5.5
Velocity (fpm)
5000.06500 0.03 5000.03 500 0.03
1000 0.22 1000 0.14 1000 0.12 1000 0.13
1500 0.50 1500 0.31 1500 0.26 1500 0.30
2000 0.89 2000 0.54 2000 0.46 2000 0.53
2500 1.39 2500 0.85 2500 0.73 2500 0.83
3000 2.00 3000 1.22 3000 1.05 3000 1.19
3500 2.72 3500 1.66 3500 1.42 3500 1.62
(in. wg)
Velocity (fpm)
(in. wg)
R
Velocity (fpm)
(in. wg)
Greenheck Fan Corporation certifies that the
model FSD-212 shown herein is licensed to bear
the AMCA Seal. The ratings shown are based on
tests and procedures performed in accordance
with AMCA Publication 511 and comply with the
requirements of the AMCA Certified Ratings Programs. The AMCA Certified Ratings Seal applies to
air performance ratings only.
Velocity (fpm)
(in. wg)
Velocity (fpm)
50
1000 0.17
1500 0.38
2000 0.67
2500 1.04
3000 1.50
3500 2.05
(in. wg)
.04
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53/8"
5"
Right hand drive is shown
Left hand drive available upon request
LH RH
A
Sleeve Length
Varies
6"
33/4"
11/2" max.
B*
Application Data FSD-212
Actuators and Accessories
Space Envelopes
Externally mounted actuators always require space
outside of the damper sleeve. The “S” dimension
illustrates the clearance required for various
available actuators.
On dampers less than 18 in. (457mm) high,
actuators may also require clearances above and/
or below the sleeve. “B” and “T” dimensions are
worst case clearance requirements for some
dampers less than 18 in. (457 mm) high. All damper
sizes under 18 in. (457mm) high do not require
these worst case clearances. If space availability
above or below the damper sleeve is limited, each
damper size should be individually evaluated.
Actuator Type/Model
FSLF120 (-S) Belimo 31⁄2 in (89mm) 0 6 in. (152mm) NA
FSNF120 (-S) Belimo 123⁄4 in. (324mm) 0 6 in. (152mm) 9 in. (229mm)
FSTF120 (-S) Belimo 31⁄2 in (89mm) 0 6 in. (152mm) NA
ML4XXX Series Honeywell 43⁄4 in. (121mm) 0 6 in. (152mm) NA
MS4X09 Series Honeywell 43⁄4 in. (121mm) 0 6 in. (152mm) NA
MS4120 Series Honeywell 123⁄4 in. (324mm) 0 6 in. (152mm) 9 in. (229mm)
GND-22X.1 Siemens 123⁄4 in. (324mm) 0 6 in. (152mm) NA
FSAF24 (-S) Belimo 123⁄4 in. (324mm) 0 6 in. (152mm) NA
FSLF24 (-S) Belimo 31⁄2 in (89mm) 0 6 in. (152mm) NA
FSNF24 (-S) Belimo 123⁄4 in. (324mm) 0 6 in. (152mm) 9 in. (229mm)
ML8XXX Series Honeywell 43⁄4 in. (121mm) 0 6 in. (152mm) NA
MS8X09 Series Honeywell 43⁄4 in. (121mm) 0 6 in. (152mm) NA
MS8120 Series Honeywell 123⁄4 in. (324mm) 0 6 in. (152mm) 9 in. (229m)
GND-12X.1 Siemens 123⁄4 in. (324mm) 0 6 in. (152mm) NA
FSLF230 (-S) Belimo 31⁄2 in (89mm) 0 6 in. (152mm) NA
FSNF230 (-S) Belimo 123⁄4 in. (324mm) 0 6 in. (152mm) 9 in. (229mm)
ML4XXX Series Honeywell 43⁄4 in. (121mm) 0 6 in. (152mm) NA
MS4X09 Series Honeywell 43⁄4 in. (121mm) 0 6 in. (152mm) NA
MS4620 Series Honeywell 123⁄4 in. (324mm) 0 6 in. (152mm) 9 in. (229mm)
GND 321.1 Siemens 123⁄4 in. (324mm) 0 6 in. (152mm) NA
331-4551 Siemans 71⁄2 in. (191mm) 0 6 in. (152mm) NA
331-2976 Siemens 123⁄4 in. (324mm) 0 6 in. (152mm) NA
331-2856 Siemens 21⁄2 in. (64mm) 0 9 in. (229mm) NA
T*
S
B* T* S
With
RRL, RRL/OCI, or
RRL, RRL/OCI, or
TOR
120 Volt AC
24 Volt AC
230 Volt AC
Pneumatic (25 psi min.)
With
TOR
PiggyBack
No Yes
* For dampers 18 in. (457mm) or more in height these dimensions are 0 in. .
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Application Data FSD-212
50 in.
96 in. (2435mm)
(1270mm)
32 in. (813mm)
Damper Sleeve Dimensional Data
The drawings below and corresponding table show the position of the FSD-212 damper when mounted in a factory sleeve. The
standard mounting locations provide enough space for the mounting of actuators, controls and allow space for installation of
retaining angles and duct connections.
The standard location of a damper mounted in a factory sleeve ("A" dimension) is shown below. The damper can be
positioned at other locations within a range of 6 in. (152mm) to 12 in. (305mm) for the "A" dimension.
11/2" max.
"A" Dimension
Standard Maximum
12 (305) 12 (305)
LH RH
Right hand drive is shown
Left hand drive available upon request
in. (mm)
33/4"
6"
Varies
53/8"
A
Sleeve Length
5"
All Dampers* 73⁄16 (183) 12 (305)
When H is 11 in. (279mm) or less
with OCI, RRL, or TOR
*With the exception of dampers 10 in. high (254mm) or less.
NOTE: Entire damper frame is not required to be installed
within the wall. The damper blades, when closed should be
contained within the wall.
Damper Sizing Information
Dampers larger than maximum single section size are supplied as a factory assembly of two or more sections of equal size. The
following figures show maximum damper section size and assembly configurations for multi-section dampers.
Single Section
50 in.
(1270mm)
32 in. (813mm)
Double Section
50 in.
(1270mm)
32 in. (813mm)
64 in. (1626mm)
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Transitioned Damper Dimensions FSD-212
When a combination fire smoke damper is being used in conjunction with round or oval ductwork, the FSD-212 can be
supplied in a factory sleeve with round or oval transitions on both ends of the sleeve. Dampers should be ordered to the
duct dimensions. Drawings below show overall damper size.
D* +
2 in. (51mm) +T
s
W*
+ 2 in. (51mm)+T
s
W* + 2 in. (51mm)+T
s
D* + 2 in. (51mm)+T
s
(406mm)
Minimum
16 in.
TYPE R
2 1/8 in.
(54mm)
D*
H* + 2 in. (51mm)+T
s
16 in.
(406mm)
Minimum
Specifications
Combination Fire Smoke Dampers meeting the following
specifications shall be furnished and installed where
shown on plans and/or as described in schedules.
Dampers shall meet the requirements of NFPA 80, 90A,
92A, 92B, 101 & 105 and further shall be tested, rated
and labeled in accordance with the latest edition of UL
Standards 555 and 555S. Dampers shall have a UL555
fire rating of 1½ hours and be of low leakage design
qualified to UL 555S Leakage Class II.
Each damper /actuator combination shall have a UL555S
elevated temperature rating of 250°F (121°C) minimum
and shall be operational and dynamic rated to operate
at maximum design air flow at its installed location. Each
damper shall be supplied with an appropriate actuator
installed by the damper manufacturer at the time of
damper fabrication. Damper actuator shall be (specifier
select one of the following) electric type for 120, 24, or
230 volt operation or pneumatic type for 25 psi minimum
(30 psi maximum) operation.
Damper blades shall be 16 ga. (1.5mm) galvanized steel
3V type with three longitudinal grooves for reinforcement.
Damper frame shall be galvanized steel formed into a
structural hat channel shape with reinforced corners.
W
TYPE O
H* + 2 in. (51mm)+T
H*
2 1/8 in.
(54mm)
*
These dimensions are furnished approximately 1/4 in. (6mm)
*
undersize, except round and oval dimensions which are
approximately 1/8 in.(3mm) undersize.
Ts = (2)(Sleeve Thickness)
s
16 in.
(406mm)
Minimum
W*
TYPE C
2 1/8 in.
(54mm)
H*
Bearings shall be 304SS type rotating in extruded holes
in the damper frame. Blade edge seals shall be silicone
rubber designed to inflate and provide a tighter seal
against leakage as pressure on either side of the damper
increases. Jamb seals shall be stainless steel compression
type. Blades shall be completely symmetrical relative to
their axle pivot point, presenting identical resistance to
airflow in either direction or pressure on either side of the
damper.
The Damper Manufacturer's submittal data shall certify
all air performance pressure drop data is licensed in
accordance with the AMCA Certified Ratings Program for
Test Figures 5.2, 5.3, and 5.5. Damper air performance
data shall be developed in accordance with the latest
edition of AMCA Standard 500-D. Dampers shall be
labeled with the AMCA Air Performance Seal.
Damper must be rated for mounting vertically (with blades
running horizontal) or horizontally and be UL 555S rated
for leakage and airflow in either direction through the
damper. Each damper shall be supplied with a 165°F
(74°C) RRL.
The basis of design is Greenheck Model FSD-212.
Copyright © 2017 Greenheck Corporation
FSD-212 Rev. 12 February 2017
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