Greenheck Fan Ventilation Hood SMD 301V User Manual

Model SMD-301V  
Smoke Dampers  
Steel Airfoil Blades  
UL 555S Leakage Class I  
Application  
Model SMD-301V meets the requirements for smoke  
dampers established by:  
Model SMD-301V is a vertical blade low leakage rated smoke  
damper. High strength airfoil blades insure lowest resistance to  
airflow in HVAC systems with velocities to 4000 fpm (20.3m/s) and  
4 in. wg (1.0 kPa).  
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)  
UL555S Leakage Rating  
Leakage Class:  
I
Operational Rating  
Maximum Velocity:  
2000 fpm (20.3 m/s) up to  
100 in. x 32 in. H  
(2540mm x 813mm) or  
4000 fpm (20.3 m/s) up to  
50 in. x 32 in. (1270mm x 813mm)  
4 in. wg (1 kPa)  
“UL CLASSIFIED (see complete marking on  
product)”  
“UL CLASSIFIED to Canadian safety standards  
(see complete marking on product)”  
Standard 555S (Listing #R13317)  
Maximum Pressure:  
Maximum Temperature:  
350ºF (177ºC)  
Standard Construction  
Frame:  
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.  
Blades:  
Seals:  
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.  
W*  
Linkage:  
Axles:  
Bearings:  
Concealed in jamb.  
1/2 in. (13mm) dia. plated steel.  
304 stainless steel  
Size Limitations:  
Minimum Size:  
6 in. W x 8 in. H  
H*  
(152mm W x 203mm H)  
Maximum Size:  
Single Section:  
50 in. W x 32 in.H  
(1270mm W x 813mm H)  
100 in. W x 32 in. H  
(2540mm W x 813mm H)  
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  
*W&H dimensions furnished approximately 1/4 in. (6mm) undersize.  
• Sealed transitions and sleeves  
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AMCA 5.2 Pressure Drop  
SMD-301V  
5D  
12x12  
24x24  
* Sizes are in inches.  
12 in. x 12 in. (305mm x 305mm)  
24 in. x 24 in. (610mm x 610mm)  
Velocity  
(fpm)  
Pressure Drop  
(in. wg)  
Velocity  
(fpm)  
Pressure Drop  
(in. wg)  
500  
0.03  
0.12  
0.26  
0.46  
0.72  
1.04  
1.41  
1.84  
500  
0.01  
0.06  
0.12  
0.22  
0.34  
0.49  
0.67  
0.87  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
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AMCA 5.3 Pressure Drop  
SMD-301V  
5D  
6D  
24x24  
12x12  
* Sizes are in inches.  
12 in. x 12 in. (305mm x 305mm)  
24 in. x 24 in. (610mm x 610mm)  
Pressure Drop  
Pressure Drop  
Velocity (fpm)  
(in. wg)  
Velocity (fpm)  
(in. wg)  
500  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
0.01  
0.06  
0.13  
0.23  
0.37  
0.53  
0.73  
0.95  
500  
0.01  
0.02  
0.06  
0.10  
0.16  
0.23  
0.32  
0.42  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
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AMCA 5.5 Pressure Drop  
SMD-301V  
4
24x2  
12x12  
12 in. x 12 in. (305mm x 305mm)  
24 in. x 24 in. (610mm x 610mm)  
Velocity  
(fpm)  
Pressure Drop  
(in. wg)  
Velocity  
(fpm)  
Pressure Drop  
(in. wg)  
500  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
0.04  
0.18  
0.42  
0.75  
1.17  
1.68  
2.29  
2.09  
500  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
0.03  
0.13  
0.29  
0.52  
0.81  
1.17  
1.60  
2.14  
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Transitioned Damper Dimensions  
When a fire/smoke damper is being used in conjunction with round or oval ductwork, the SMD-301V 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.  
D*+  
2 in. (51mm) +T  
s
W*+ 2 in. (51mm)+T  
s
W*+ 2 in. (51mm)+T  
s
D*+ 2 in. (51mm)+T  
s
H*+ 2 in. (51mm)+T  
H*+ 2 in. (51mm)+T  
s
s
H*  
H*  
21/8in.  
21/8in.  
(54mm)  
21/8in.  
(54mm)  
(54mm)  
*
W
W*  
D*  
16 in. (406mm)  
Min.  
16 in. (406mm)  
Min.  
16 in. (406mm)  
Min.  
TYPE R  
TYPE O  
TYPE C  
These dimensions are furnished approximately 1/4 in. (6mm) undersize, except round and oval dimensions which are approximately 1/8 in. (3mm) undersize.  
*
T
= (2)(Sleeve Thickness)  
s
Specifications  
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 92A, 92B, 101 & 105 and shall be  
further tested, rated and labeled in accordance with the  
latest edition of UL Standard 555S. Smoke dampers shall  
be of low leakage design qualified to UL 555S Leakage  
Class I.  
Bearings shall be 304 stainless steel sleeve type 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.  
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 (24  
or 230) volt operation or pneumatic type for 25 psi minimum  
(30 psi maximum) operation.  
Damper must be rated for mounting vertically (with blades  
running vertical) and be UL 555S rated for leakage and air-  
flow in either direction through 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.  
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.  
The basis of design is Greenheck Model SMD-301V.  
Copyright ©2007 Greenheck Fan Corporation  
SMD-301V Rev 3 June 2007  
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