Greenheck Fan FSD-311V Manual De Usuario

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Transitioned damper dimensions
When a combination fire smoke damper is being used in conjunction with round or oval ductwork, the FSD-311V 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.
*  
These dimensions are furnished approximately 
1
/
4
 in. (6mm) undersize, except round and oval dimensions which are approximately 
1
/
8
 in. (3mm) undersize. 
Ts = (2)(Sleeve Thickness)
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 NFPA 80, 90A, 92A, 92B, 101 & 105 and further 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 and be of low leakage design qualified to UL 555S 
Leakage Class I.
Each damper /actuator combination shall have a UL555S elevated 
temperature rating of 250°F (121º C) minimum and shall be rated to 
operate at maximum design air flow at its installed location. Each 
damper shall be supplied with an appropriate actuator installed by 
the damper manufacturer at the time of damper fabrication. Damper 
actuator shall be (specifier select one of the following) electric type 
for 120 (or 24) Volt operation or pneumatic type for 25 psi minimum 
(30 psi maximum) operation.
Damper blades shall be of the double skin airfoil type and shall have 
an equivalent metal thickness of 14 ga. (2mm). Damper frame shall 
be galvanized steel formed into a structural hat channel shape with 
reinforced corners. Bearings shall be 304 stainless steel rotating 
in extruded holes in the damper frame. Blade edge seals shall be 
silicone rubber designed to inflate and provide a tighter seal against 
leakage as pressure on either side of the damper increases. Jamb 
seals shall be stainless steel compression type. Blades shall be 
completely symmetrical relative to their axle pivot point, presenting 
identical resistance to airflow in either direction or pressure on 
either side of the damper. 
Damper must be rated for mounting vertically (with blades running 
vertical) and be UL 555S rated for leakage and airflow in either 
direction through the damper. Each damper shall be supplied with 
165°F (74°C) RRL.
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. 
The basis of design is Greenheck Model FSD-311V.
specifications
D*  +  2 in. (51mm) +T  s 
D* 
TYPE  R 
 
16 in. (406mm) 
Min. 
8
 in.
D*  +  2 in. (51mm)+T  s 
TYPE  O 
H* 
W* 
  
+  2 in. (51mm)+T s 
H*  +  2 in. (51mm)+T s 
W* 
H* 
TYPE  C 
  
H*  +  2 in. (51mm)+T s 
 
(54mm)
16 in. (406mm) 
Min. 
8
 in. 
(54mm)
16 in. (406mm) 
Min. 
W* +  2 in. (51mm)+T s 
(54mm)
8
 in.
Copyright ©2007 Greenheck Fan Corporation 
FSD-311V Rev. 3 June 2007