Model SSDFD-155
Dynamic Rated Fire Dampers
1
1 /2 Hour Fire Resistance Rating
100% Free Area - Sealed for High Pressure Systems
APPLICATION
Model SSDFD-155 is approved for use in walls, floors and
partitions with fire resistance ratings less than 3 hours.
This model carries a 11/2 hour UL fire damper label. UL
555 classifies dynamic rated fire dampers for use in HVAC
systems that are operational in the event of fire .
Model SSDFD-155 meets the requirements for fire dampers
established by:
National Fire Protection Association
(NFPA Standards 80, 90A & 101)
Underwriters Laboratories Standard 555 (Listing #R-13317)
BOCA National Building Codes
IBC International Building Codes
RATINGS
UL555 Fire Resistance Rating
Fire Rating: 1 1/2 hours
Dynamic closure rating
ICBO Uniform Building Codes
Maximum Velocity: 2000 fpm (10.2 m/s) vertical mount
Maximum Pressure: 4 in. wg (1 kPa)
SBCCI Standard Building Codes
New York City (MEA listing #260-91-M)
California State Fire Marshall
(Listing #3225-981:102)
CONSTRUCTION
Stainless steel (in gauges required by UL listing R-13317)
INSTALLATION
“UL CLASSIFIED (see complete marking on product)”
“UL CLASSIFIED to Canadian safety standards (see
complete marking on product)”
All fire damper installations require the use of sleeves,
angles and methods described in Greenheck Fire Damper
Installation Instructions #452763, included with every
damper shipment. Sleeves can be field fabricated or
factory furnished as a complete damper/sleeve assembly.
See Factory Sleeve Option below for details.
Standard 555 (Listing #R13317)
W*
FEATURES
• Stainless steel closure springs
• Fusible links (165ºF (74ºC) standard, 212ºF (100ºC)
available.
H*
• Vertical or horizontal mount available
OPTIONAL FEATURES
• Sealed transitions and sleeves
• Security bars
• One piece retaining angles (POC)
• Transitions (C, CO, CR, R)
Vertical mount
311
/16 in.
(94mm)
These dimensions are furnished approximately 1/4in. (6mm) undersize.
*
Sleeve
FACTORY SLEEVE OPTION
SSDFD-155 Fire Dampers are available in factory furnished sleeves.
Sleeves are galvanized steel and are available in 10 thru 20 ga.
(1mm- 3.5mm) thicknesses and lengths up to 36 in. (914mm).
“K” dimension specifies location of damper within the sleeve.
Minimum is 4 in. (102mm), maximum is “L” less 4 in. (102mm),
which allows for mounting angle installation and duct connection at
each end of the sleeve. If “K” dimension is not specified, it will be
provided as one half of “L” dimension (damper centered in sleeve).
Damper
H*
Note: If using access doors, the door should be installed on the “K”
side of the damper.
K
Damper
Location
C Damper Frame
L
W*
L
Overall Sleeve Length
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