Greenheck Steel Airfoil Blades FSD-311V Specification Sheet

APPLICATION
Model FSD-311V is a vertical blade class I leakage rated combi-
nation fire smoke damper. High strength airfoil blades ensure the
lowest resistance to airflow in HVAC systems with velocities to 4000
fpm (20.3m/s) and 4 in. wg (1.0 kPa).
RATINgs
UL 555 Fire Resistance Rating:
Fire Rating:
Dynamic Closure Rating: Actual ratings are size dependent
Max. Velocity:
Max. Pressure:
UL555S Leakage Rating:
Leakage Class:
Operational Rating:
Max. Velocity:
Max. Pressure:
Maximum Temperature: 350°F (177°C)- depending upon
sTANdARd CONsTRuCTION
Frame:
Blades:
seals:
Closure device:
Linkage:
Axles:
Bearings:
sIze LImITATIONs:
minimum size:
maximum size-
Single Section:
Multiple Section:
OPTIONAL FeATuRes
• OCI (Open closed indication switches)
• Electric or pneumatic actuators to accomplish smoke
management and system functions.
• Transitions (R, C, O)
• POC retaining angles
• Momentary Switch
• Sealed transitions and sleeves
• RRL/OCI (Open closed indication switches)
• 165ºF (74°C), 212ºF (100°C), 250ºF (121°C), 350ºF (177°C) RRL's
available
• TOR (remote override closure allows damper to perform smoke
management functions during a fire emergency.)
• PRV (pneumatic relief valve)
• Security Bars
• Sealed transitions and sleeves
Combination
1½ hours
up to 4000 fpm (20.3 m/s)
4 in. wg (1 kPa)
I
Actual ratings are size dependent
up to 4000 fpm (20.3m/s)
4 in. wg (1 kPa)
the actuator
5 in. x 1 in. (127mm x 25mm)
galvanized 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.
Double skin airfoil shape of
galvanized steel with full length
structural reinforcement. 14 ga.
(2 mm) equivalent thickness.
Extruded silicone rubber blade
seals. Flexible stainless steel jamb
seals.
RRL 165°F (74°C)
Concealed in jamb.
/ in. (13mm) dia. plated steel.
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304 stainless steel
6 in. W x 8 in. H
(152mm W x 203mm H)
50 in. W x 32 in. H
(1270mm W x 813mm H)
100 in. W x 32 in. H
(2540mm W x 813mm H)
FIRe smOKe dAmPeRs
UL555 1 1/2 Hour Fire Resistance Rating
Model FSD-311V 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
ICBO uniform 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)
"uL CLAssIFIed (see complete marking on
product)"
"uL CLAssIFIed to Canadian safety standards
(see complete marking on product)"
Standard 555 & 555S (Listing #R13317)
H*
*W&H dimensions furnished approximately
Installation instructions available at www.greenheck.com
model Fsd-311V
Steel Airfoil Blades
UL 555S Leakage Class I
W*
1 / in. (6mm) undersize.
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