Greenheck Fan SSSMD-201 User Manual
Model SSSMD-201
H*
W*
R
Smoke Dampers
Stainless Steel 3V Blade
UL 555S Leakage Class I
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.
Ratings
Leakage Class: l
Pressure: 4 in. wg (1 kPa) - differential
pressure
Velocity: Operational rated to 2000 fpm
(10.2 m/s)
Temperature: 350°F (177ºC) with all actuators.
Higher temperature ratings with
some actuators.
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.
Blades: 16 ga. (1.5mm) 304 stainless steel,
reinforced with 3 longitudinal
structurally designed vee’s.
Seals: Flexible 304 stainless steel jamb
seals.
Linkage: 304 stainless steel - concealed in
jamb.
Axles:
steel.
Bearings: 304 stainless steel sleeve type.
1
/2 in. (13mm) dia. 304 stainless
Model SSSMD-201 meets the requirements for smoke
dampers established by:
National Fire Protection Association
NFPA Standards 92A, 92B, 101 & 105
IBC International Building Codes
New York City (MEA listing #260-91-M)
CSFM California State Fire Marshal
Leakage (Smoke) Damper Listing (#3230-0981:104)
“UL CLASSIFIED (see complete marking on
product)”
“UL CLASSIFIED to Canadian safety standards
(see complete marking on product)”
Standard 555S (Listing #R13317)
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.
Size Limitations
Minimum Size:
(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)
Multiple Section - 144 in. W x 100 in. H
(3658mm W x 2438mm H)
288 in. W x 50 in. H
(7315 mm W x 1270mm H)
8 in. W x 6 in. H
RH
Optional Features
• OCI (Open closed indication switches)
• Electric or pneumatic actuators to accomplish smoke
management and system functions.
• Fail open
Installation instructions available at www.greenheck.com
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.
Pressure Drop Data SSSMD-201
5D 6D
5D
D
4 (W) (H
)
3.14
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/ft
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.
3
(1.201 kg/m3).
AMCA 5.2 Pressure Drop SSSMD-201
5D 6D
5D
D
=
4 (W) (H )
3.14
Figure 5.3
Figure 5.2
R
Velocity (fpm)
Pressure Drop
(in. wg)
Velocity (fpm)
Pressure Drop
(in. wg)
Velocity (fpm)
Pressure Drop
(in. wg)
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
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)
Velocity (fpm)
Pressure Drop
(in. wg)
5000.03
1000 0.10
1500 0.23
2000 0.41
2500 0.63
3000 0.91
3500 1.24
4000 1.62
48 in. x 12 in. (1219mm x 305mm)
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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