Model SSSMD-201
Smoke Dampers
Stainless Steel 3V Blade
UL 555S Leakage Class I
Model SSSMD-201 meets the requirements for smoke
dampers established by:
National Fire Protection Association
NFPA Standards 92A, 92B, 101 & 105
Application
Model SSSMD-201 is a 304 stainless steel leakage rated smoke
damper with 3V style blades. The SSSMD-201 has been qualified to
2000 fpm (10.2 m/s) and 4 in. wg (1 kPa) for operational closure in
emergency smoke control situations. Model SSSMD-201 may be
installed vertically (with blades running horizontally) or horizontally
and is rated for airflow and leakage in either direction.
IBC International Building Codes
New York City (MEA listing #260-91-M)
CSFM California State Fire Marshal
Leakage (Smoke) Damper Listing (#3230-0981:104)
Ratings
Leakage Class:
Pressure:
l
4 in. wg (1 kPa) - differential
pressure
“UL CLASSIFIED (see complete marking on
product)”
“UL CLASSIFIED to Canadian safety standards
(see complete marking on product)”
Standard 555S (Listing #R13317)
Velocity:
Operational rated to 2000 fpm
(10.2 m/s)
350°F (177ºC) with all actuators.
Higher temperature ratings with
some actuators.
Temperature:
Standard Construction
Frame:
5 in. x 1 in. (127mm x 25mm) 16 ga.
(1.5mm) 304 stainless steel hat
channel with reinforced corners. A
low profile head and sill are used on
sizes less than 17 in. (432mm) high
to maximize free area and
performance.
Greenheck Fan Corporation certifies that the model
SSSMD-201 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
R
requirements of the AMCA Certified Ratings Pro-
grams. The AMCA Certified Ratings Seal applies to
air performance ratings only.
Blades:
16 ga. (1.5mm) 304 stainless steel,
reinforced with 3 longitudinal
structurally designed vee’s.
Flexible 304 stainless steel jamb
seals.
Seals:
Linkage:
Axles:
304 stainless steel - concealed in
jamb.
W*
1/2 in. (13mm) dia. 304 stainless
steel.
Bearings:
304 stainless steel sleeve type.
Size Limitations
Minimum Size:
8 in. W x 6 in. H
(203mm W x 152mm H)
Maximum Size:
Single Section -
32 in. W x 50 in. H
(813mm W x 1270mm H)
36 in. W x 48 in. H
(914mm W x 1219mm H)
144 in. W x 100 in. H
(3658mm W x 2438mm H)
288 in. W x 50 in. H
RH
Multiple Section -
H*
(7315 mm W x 1270mm H)
Optional Features
• OCI (Open closed indication switches)
• Electric or pneumatic actuators to accomplish smoke
management and system functions.
• Fail open
LH
*W&H dimensions furnished approximately 1/4 in. (6mm) undersize.
(Add sleeve thickness for overall sleeved damper dimension)
Right hand drive is shown. Left hand drive is available upon request.
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AMCA 5.2 Pressure Drop
SSSMD-201
5D
Figure 5.2
ꢀ
Pressure Drop
Pressure Drop
Pressure Drop
Pressure Drop
Pressure Drop
Velocity (fpm)
Velocity (fpm)
Velocity (fpm)
Velocity (fpm)
Velocity (fpm)
500
1000
1500
2000
2500
3000
3500
0.04
0.14
0.31
0.55
0.86
1.24
1.69
500
1000
1500
2000
2500
3000
3500
0.02
0.07
0.16
0.29
0.45
0.65
0.89
500
0.01
0.04
0.09
0.16
0.25
0.36
0.49
500
0.01
0.06
0.13
0.23
0.36
0.52
0.70
500
0.03
0.10
0.23
0.41
0.63
0.91
1.24
1000
1500
2000
2500
3000
3500
1000
1500
2000
2500
3000
3500
1000
1500
2000
2500
3000
3500
Greenheck Fan Corporation certifies that the model
SSSMD-201 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.
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AMCA 5.3 Pressure Drop
SSSMD-201
5D
6D
Figure 5.3
Pressure Drop
Pressure Drop
Pressure Drop
Pressure Drop
Pressure Drop
Velocity (fpm)
(in. wg)
Velocity (fpm)
(in. wg)
Velocity (fpm)
(in. wg)
Velocity (fpm)
(in. wg)
Velocity (fpm)
(in. wg)
500
1000
1500
2000
2500
3000
3500
0.02
0.09
0.20
0.36
0.56
0.81
1.10
500
1000
1500
2000
2500
3000
3500
0.01
0.04
0.09
0.16
0.25
0.35
0.48
500
1000
1500
2000
2500
3000
3500
0.01
0.03
0.06
0.11
0.17
0.24
0.33
500
1000
1500
2000
2500
3000
3500
0.01
0.04
0.10
0.17
0.27
0.39
0.53
500
1000
1500
2000
2500
3000
3500
0.02
0.07
0.16
0.29
0.45
0.64
0.88
Greenheck Fan Corporation certifies that the model
SSSMD-201 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.
R
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AMCA 5.5 Pressure Drop
SSSMD-201
Pressure Drop
Pressure Drop
Pressure Drop
Pressure Drop
Pressure Drop
Velocity (fpm)
Velocity (fpm)
Velocity (fpm)
Velocity (fpm)
Velocity (fpm)
500
1000
1500
2000
2500
3000
3500
0.04
0.17
0.38
0.67
1.04
1.50
2.05
500
1000
1500
2000
2500
3000
3500
0.06
0.22
0.50
0.89
1.39
2.00
2.72
500
1000
1500
2000
2500
3000
3500
0.03
0.14
0.31
0.54
0.85
1.22
1.66
500
1000
1500
2000
2500
3000
3500
0.03
0.12
0.26
0.46
0.73
1.05
1.42
500
1000
1500
2000
2500
3000
3500
0.03
0.13
0.30
0.53
0.83
1.19
1.62
Greenheck Fan Corporation certifies that the model
SSSMD-201 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.
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Application Data
Damper Sideplate and Sleeve Dimensional Data
The drawings below illustrate the factory standard sideplate and sleeve mountings for the SSSMD-201. The standard "A"
dimensions listed in the table provide adequate space for the mounting of actuators and controls.
3
If space constraints are a problem the "A" dimension can be varied between 5 ⁄8 in. (136mm) and 12 in. (305mm).
3
38mm max
Sleeve
Sideplate
"A" Dimension
in. (mm)
Standard
7 3/16 in. (183)
12 (305)
Maximum
12 (305)
12 (305)
All Dampers*
95mm
When Height is
11 in. (279) or less
with OCI
152m. m
*With the exception of dampers 10 in. high (254mm) or less.
Varies
137mm
NOTE: Entire damper frame is not required to be installed
within the wall.
127.mm
127mm
A
A
*
305mm
Sleeve Length
T*
S
Space Envelopes Required for
Actuators and Accessories
Externally mounted actuators always require space outside
of the damper sideplate or 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
sideplate or sleeve. “B” and “T” dimensions are worst case
clearance requirements for some dampers less than 18
in. (457mm) 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.
B*
Actuator
Type/Model
B*
T*
S
With OCI
With OCI
120 Volt AC
5 1/4 in. (133mm) 3/4 in. (19mm)
ML4XXX Series Honeywell
MS4XXX Series Honeywell
MS4120 Series Honeywell
6 in. (152mm)
6 in. (152mm)
6 in. (152mm)
6 in. (152mm)
6 in. (152mm)
3/8 in. (10mm)
3/8 in. (10mm)
24 Volt AC
5 1/4 in. (133mm) 3/4 in. (19mm)
ML8XXX Series Honeywell
MS8XXX Series Honeywell
MS8120 Series Honeywell
6 in. (152mm)
6 in. (152mm)
6 in. (152mm)
6 in. (152mm)
6 in. (152mm)
3/8 in. (10mm)
3/8 in. (10mm)
Pneumatic (psi)
331-4551 Siemens
331-2976 Siemens
MK2-7121 Invensys
1 in. (25mm)
6 1/4 in. (159mm)
6 1/2 in. (165mm)
2 3/8 in. (60mm)
3 3/4 in. (95mm)
12 1/8 in. (308mm) 9 1/4 in. (235mm)
16 1/2 in. (419mm) 10 in. (254mm)
* For dampers 18 in. (457mm) or more in height these dimensions are 0 in. .
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Damper Sizing Information
Dampers larger than maximum single section size are supplied as a factory assembly of two or
Damper Sizing
Information
more sections of equal size.
The following figures show damper sections and assemblies that have been qualified for operation
with a single actuator. Larger sizes can be accommodated using multiples of these assembles.
Single Section
Multi Section
50 in.
(1270mm)
50 in.
(1270mm)
32 in. (813mm)
64 in. (1626mm)
32 in. (813mm)
Transitioned Damper
Dimensions
When a fire/smoke damper is being used in conjunction with round or oval ductwork, the
SSSMD-201 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
H*+ 2 in. (51mm)+T
H*+ 2 in. (51mm)+T
s
s
H*
H*
21/8in.
21/8in.
(54mm)
21/8in.
(54mm)
(54mm)
*
W
W*
D*
16 in. (406mm)
Min.
16 in. (406mm)
Min.
16 in. (406mm)
Min.
TYPE R
TYPE O
TYPE C
These dimensions are furnished approximately 1/4 in. (6mm) undersize, except round and oval dimensions which are approximately 1/8 in. (3mm) undersize.
*
T
= (2)(Sleeve Thickness)
s
Specifications
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 92A,
92B, 101 and 105 and further shall be tested, rated and labeled in
accordance with the latest edition of UL Standards 555S. Dampers
shall be UL labeled for use in dynamic systems.
with three longitudinal grooves for reinforcement. Blades shall be
completely symmetrical relative to their axle pivot point, presenting
identical resistance to airflow and operation in either direction
through the damper (blades that are non-symmetrical relative to
their axle pivot point or utilize blade stops larger than 0.5 in. are
unacceptable).
Dampers shall have a UL555S leakage rating of Class I and a
temperature rating of 250ºF (121ºC) minimum. Dampers shall have a
UL555S operational airflow rating equal to or greater than the airflow
at its installed location and an operational pressure rating of 4 in. wg
(1 kPa). Damper actuators shall be factory mounted and qualified for
use with the damper in accordance with UL555S. Damper actuators
shall be (specifier select one of the following) electric type for 120V,
24V, 230 volt operation or pneumatic type for 25 psi minimum (30 psi
maximum) operation. Manufacturer’s submittal data shall indicate
actuator space requirements around the damper.
Damper frames shall be 16 ga. (1.5mm) 304 stainless steel formed
into a structural hat channel shape with reinforced corners. Bearings
shall be stainless steel type rotating in extruded holes in the damper
frame. Jamb seals shall be stainless steel compression type.
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 shall be developed in accordance with the
latest edition of AMCA Standard 500-D.
The basis of design is Greenheck’s model SSSMD-201.
Damper blades shall be 16 ga. (1.5mm) 304 stainless steel 3V type
Copyright ©2006 Greenheck Fan Corporation
SSSMD-201 Rev 5 July 2006
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