Greenheck Fan SSFSDR-511 Prospecto

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Copyright © 2008 Greenheck Fan Corporation
SSFSDR-511 Rev. 5 June 2008
3.375 IN.
FUSIBLE LINK 
(standard)
LOCATION
CLEARANCE FOR
EXPANSION
TOP VIEW OF DAMPER 
6 IN. MAX 
SLEEVE LENGTH 
Wall
DUCT 
CONNECTION 
AREA 
AIRFLOW 
1.5 IN.
ACTUATOR
16.00 IN MAX
OPTIONAL BLADE POSITION 
INDICATOR AND/OR ELECTRIC 
LINK. 
DUCT 
CONNECTION 
AREA 
1.5 IN.
1.50 IN. 
Optional 
Second 
Retaining 
Plate 
Do not place retainer 
plate in this groove 
5.375 in.
3.06 in. or 7.43 in.*
* 7.43 in. when OCI, RRL, RRL/OCI,
   TOR, or PRV is selected
Retaining plate
Specificatons
True Round 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 the latest edition of NFPA 80, 
90A, 92A, 92B, 101, & 105.
Damper shall be constructed of 20 ga. (1mm) 304 stainless steel 
frame/sleeve; blades constructed of double skin 304 stainless 
steel round style blade; silicone rubber blade seal; stainless 
steel linkage; ½ in. stainless steel axle; stainless steel bearings. 
Damper is provided with one retainer plate.
Dampers 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. Each damper shall 
be equipped with a heat responsive device, which has been 
tested and approved for use with the damper assembly in 
accordance with UL555. The heat responsive device shall have 
a temperature rating of (specifier select one or the following) 
165°F (74°C), 212°F (100°C), 286°F (141°C), or 350°F (177°C).
Dampers shall be UL labeled for use in dynamic systems. The 
damper shall have a dynamic closure airflow rating equal to or 
greater than the airflow at the dampers installed location and a 
dynamic closure pressure rating of 4 in. wg  (1kPa). All UL555 
and UL555S dynamic closure and leakage ratings shall be 
qualified for airflow and pressure in either direction through
the damper. UL ratings shall allow for mounting damper 
vertically or horizontally.
Dampers shall have a UL555S leakage rating of Class 
I and a temperature rating of 250°F (121°C) 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 (1kPa). 
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 120 or 24 volt operation and 
pneumatic type for 25 psi minimum (30 psi maximum) 
operation. Manufacturer’s submittal data shall indicate 
actuator space requirements around the damper.
The Damper manufacturer’s submittal data shall certify 
all air performance pressure drop data is tested 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.
Basis of design is Greenheck's model SSFSDR-511.