
Model FSD-M211
Application
Combination Fire Smoke Dampers
Model FSD-M211 is a combination fire smoke damper with 3V style
blades. The FSD-M211 has been qualified to 10.2 m/s and 1 kPa for
operation and dynamic closure in emergency fire smoke situations.
Model FSD-M211 may be installed vertically (with blades running
horizontal) or horizontally and is rated for airflow and leakage in
either direction.
Model FSD-M211 has also been tested in accordance with BS476 to
4 hours at Warrington Fire, UK, and is approved for fire partitions of
4 hours or less where British Standards are required.
Ratings
UL 555 Fire Resistance Rating
Fire Rating: 1
Dynamic Closure Rating: Actual ratings are size dependant
Maximum Velocity: 10.2 m/s
Maximum Pressure: 1.5 kPa
UL 555S Leakage Rating
Leakage Class: I
Operational Rating: Actual ratings are actuator dependant
Maximum Velocity: 10.2 m/s
Maximum Pressure: 1.5 kPa
Max. Temperature: 177°C —Depending on actuator
BS476 Fire Resistance Rating
Fire Rating: 4 hours
Construction Standard Optional
Frame Material Galvanized steel -
Frame Material
Thickness
Frame Type 127mm x 25mm
Blade Material Galvanized steel -
Blade Material
Thickness
Blade Type 3V -
Linkage Plated steel out of
airstream, concealed
Axle Bearings Bronze -
Axle Material Plated steel -
Blade Seals Silicone -
Jamb Seals 304SS -
Closure Device RRL RRL/OCI, TOR,
Closure
Temperature
Features:
•Framesareconstructedwithreinforcedcorners.Low
profile head and sill are used on sizes less than 432mm
(17 in.) high.
•Bladesarereinforcedwith3longitudinalstructurally
designed vee's.
1
⁄2 Hours
1.5mm
(16 ga.)
(5 in. x 1in.)
hat channel
1.5mm
(16 ga.)
in jamb
74°C
(165°F)
-
-
-
-
Fusible LInk
100°C (212°F),
121°C (250°F),
177°C (350°F)
H
W x H
Inches 8 x 6 32 x 50 or 36 x 48 144 x 96 128 x 100
mm 203 x 152 813 x1270 or 914 x 1219 3658 x 2438 3251 x 2540
Inches 8 x 6 36 x 48 144 x 48 128 x 48
mm 203 x 152 914 x 1219 3658 x 1219 3251 x 1219
Steel 3V Blades
UL 555S Leakage Class I
UL555 11⁄2 Hour Fire Resistance Rating
4 Hour Fire Resistance Rating (BS476)
Model FSD-M211 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
British Standard BS476
Tested to 4 hours at Warrington Fire, UK
“UL CLASSIFIED (see complete marking on
product)”
“UL CLASSIFIED to Canadian safety standards
(see complete marking on product)”
Standard 555 & 555S (Listing #R13317)
Greenheck Kunshan Co. Ltd. and Greenheck Fan
Corporation certifies that the model FSD-M211
shown herein is licensed to bear the AMCA Seal. The
ratings shown are based on tests and procedures
AIR
PERFORMANCE
AIR
MOVEMENT
AND CONTROL
ASSOCIATION
INTERNATIONAL, INC.
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.
®
W
* W & H dimensions
furnished approximately
6mm undersize. (Add
sleeve thickness for overall
sleeved damper dimension)
Right hand drive is shown.
Left hand drive is available
RH
upon request.
LH
Minimum
Size
Single
Section
4 in. wg (1 kPa) pressure
6 in. wg (1.5 kPa) pressure
Maximum Size
Multiple Section
Horizontal Vertical
Installation instructions available at www.greenheck.com

Options and Pressure Drop Data FSD-M211
5D 6D
5D
D
4 (W) (H
)
3.14
Options available on FSD-M211:
• RRL/OCI(OpenClosedIndicationswitches) •TOR(TemperatureLimitedOverride)
• Actuators(24V,230V) •Flanges
• Momentarytestswitch •POCretainingangles
• 69°C fusible link (BS476) •Transitions(R,C)
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 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.

AMCA 5.2 Pressure Drop FSD-M211
D
=
4 (W) (H )
3.14
Figure 5.3
5D
Figure 5.2
VELOCITY VS. PRESSURE DROP
1000
305mm x 305mm
610mm x 610mm
914mm x 914mm
305mm x 1219mm
1219mm x 305mm
610 x 610
914 x 914
1219 x 305
305 x 1219
100
305 x 305
305mm x 305mm
Velocity
(m/s)
2.5 10
5.1 35
7.7 80
10 135
12.6 207
15.5 311
17.8 411
20.8 561
10
PRESSURE DROP- PASCALS
2 5 10 30
FACE VELOCITY- METERS/SECOND
610mm x 610mm
Pressure
Drop (Pa)
Velocity
(m/s)
2.5 5
5.2 17
7.8 42
10.3 72
12.9 115
15.4 162
18.1 224
20.8 296
Pressure
Drop (Pa)
Velocity
Greenheck Kunshan Co. Ltd. and Greenheck Fan
Corporation certifies that the model FSD-M211 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.
AMCA 5.2
914mm x 914mm
Pressure
Drop (Pa)
(m/s)
2.6 3
5.1 10
7.6 22
10.2 42
12.7 65
15.3 95
17.7 127
20.3 167
305mm x 1219mm
Velocity
(m/s)
2.5 3
5.1 15
7.6 32
10.3 57
12.9 90
15.3 125
18 174
20.5 227
Pressure
Drop (Pa)
1219mm x 305mm
Velocity
(m/s)
2.5 8
5.1 27
7.7 57
10.3 105
12.9 164
15.6 242
17.9 316
20.7 424
Pressure
Drop (Pa)

AMCA 5.3 Pressure Drop FSD-M211
VELOCITY VS. PRESSURE DROP
1000
305mm x 305mm
610mm x 610mm
914mm x 914mm
305mm x 1219mm
1219mm x 305mm
1219 x 305
100
305 x 305
305 x 1219
PRESSURE DROP- PASCALS
305mm x 305mm
Velocity
(m/s)
2.4 5
5.1 22
7.8 52
10.3 92
12.9 145
15.4 209
17.7 274
20.8 379
Pressure
Drop (Pa)
610 x 610
914 x 914
10
2 5 10 30
FACE VELOCITY- METERS/SECOND
AMCA 5.3
610mm x 610mm
Velocity
(m/s)
2.5 3
7.7 22
10.3 40
12.8 62
15.5 92
17.9 122
20.8 167
Pressure
Drop (Pa)
5 10
914mm x 914mm
Velocity
(m/s)
2.5 3
5.1 8
7.6 15
10.1 27
12.8 42
15.3 62
17.7 82
20.3 107
Pressure
Drop (Pa)
305mm x 1219mm
Velocity
(m/s)
2.5 3
5.1 10
7.7 25
10.3 42
12.9 67
15.7 100
18.7 140
20.9 174
Pressure
Drop (Pa)
1219mm x 305mm
Velocity
(m/s)
2.5 5
5.1 20
7.6 40
10.1 72
12.7 112
15.3 164
18 227
20.6 299
Pressure
Drop (Pa)
Greenheck Kunshan Co. Ltd. and Greenheck Fan
Corporation certifies that the model FSD-M211 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.

AMCA 5.5 Pressure Drop FSD-M211
5D 6D
5D
D
4 (W) (H)
3.14
VELOCITY VS. PRESSURE DROP
1000
305mm x 305mm
610mm x 610mm
914mm x 914mm
305mm x 1219mm
1219mm x 305mm
305 x 1219
914 x 914
610 x 610
1219 x 305
100
305 x 305
305mm x 305mm
Velocity
(m/s)
2.5 13
5 55
7.5 122
10.2 222
12.7 349
15.4 508
17.9 688
20.6 907
Pressure
Drop (Pa)
10
PRESSURE DROP- PASCALS
2 5 10 30
610mm x 610mm
Velocity
(m/s)
2.5 8
5 35
7.6 75
10.3 140
12.8 217
15.3 309
17.7 409
20.8 568
FACE VELOCITY- METERS/SECOND
Pressure
Drop (Pa)
Velocity
AMCA 5.5
914mm x 914mm
(m/s)
2.5 8
5.1 30
7.7 67
10.2 115
12.9 184
15.5 269
18.1 354
20.6 471
Pressure
Drop (Pa)
305mm x 1219mm
Velocity
(m/s)
2.6 8
5.1 32
7.7 75
10.2 130
12.7 202
15.5 301
18.1 416
20.6 536
Pressure
Drop (Pa)
1219mm x 305mm
Velocity
(m/s)
2.5 1
5 42
7.7 95
10.3 172
12.7 264
15.3 381
17.9 521
20.8 707
Pressure
Drop (Pa)
Greenheck Kunshan Co. Ltd. and Greenheck
Fan Corporation certifies that the model FSDM211 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.

127mm
A
Sleeve Length
Varies
38mm max
95mm
137mm
Damper Sizing Information
The following figures show maximum damper section size.
Single Section
W
152mm .
H
127mm.
A
*
305mm
Damper Sleeve Dimensional Data
The drawings below and corresponding table show the position of the FSD-M211 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.
38mm max.
95mm
Varies
152mm
LH RH
Right hand drive is shown
Left hand drive available upon request
137mm
A
Sleeve Length
127mm
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 I.
Each damper /actuator combination shall have a UL555S elevated
temperature rating of 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 24 or 230 volt operation.
Damper blades shall be 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. Bearings shall be sintered bronze sleeve type
rotating in extruded holes in the damper frame. Blade edge seals
The "A" dimension is the location of the damper mounted
in a factory sleeve. The table below shows the Standard,
Minimum, and Maximum “A” dimensions.
in. (mm)
All Dampers* 7 3/16 (183) 12 (305)
When H is 11 in. (279mm) or
lesswithOCI,RRL,orTOR
*With the exception of dampers 10 in. high (254mm) or less.
NOTE:Entiredamperframeisnotrequiredtobeinstalledwithinthe
wall. The damper blades, when closed should be contained within
the wall.
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 74°C RRL.
The basis of design is Greenheck Model FSD-M211.
"A" Dimension
Standard Maximum
12 (305) 12 (305)
Copyright © 2010 Greenheck Fan Corporation
FSD-M211 Rev. 8 November 2010