Greenheck Fan Ventilation Hood SMD 302M User Manual

Model SMd-302M  
Smoke dampers  
Steel Airfoil Blades  
UL 555S Leakage Class II  
APPLICATION  
Model SMD-302M meets the requirements for  
smoke dampers established by:  
Model SMD-302M is a leakage rated modulating smoke damper  
with class II leakage. The SMD-302M serves the function of both  
a control damper and smoke damper. High strength airfoil blades  
insure lowest resistance to airflow in HVAC systems with velocities  
to 2000 fpm (10.2m/s) and 4 in. wg (1 kPa) Model SMD-302M may  
be installed vertically (with blades running horizontal) or horizontally  
and is rated for airflow and leakage in either direction.  
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)  
UL 555S Leakage Rating  
Leakage Class:  
Operational Rating  
Maximum Velocity:  
Maximum Pressure:  
II  
2000 fpm (10.2m/s)  
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 Temperature:250ºF (121ºC)  
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  
Greenheck Fan Corporation certifies that the  
model SMD-302M shown herein is licensed  
to bear the AMCA Seal. The ratings shown  
are based on tests and procedures performed  
in accordance with AMCA Publication 511  
and comply with the requirements of the  
AMCA Certified Ratings Programs. The  
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.  
R
AMCA Certified Ratings Seal applies to air  
performance ratings only.  
Linkage:  
Axles:  
Bearings:  
Concealed in jamb.  
1/2 in. (13mm) dia. plated steel.  
Bronze sleeve type.  
SIze LIMITATIONS:  
Minimum Size:  
8 in. W x 6 in. H  
(203mm W x 152mm H)  
Maximum Size:  
Single Section:  
32 in. W x 50 in.H  
(813mm W x 1270mm H)  
128 in. W x 100 in. H  
(3251mm W x 2540mm H)  
Multiple Section:  
LH  
Optional Features:  
• Galvanized steel sleeves.  
• Stainless steel bearings  
H*  
• OCI (Open closed indication switches)  
• Electric or pneumatic actuators to accomplish smoke  
management and system functions.  
W*  
Transitions (R, C, O)  
• POC retaining angles  
• Momentary Switch  
RH  
• Smoke detectors  
• Sealed transitions and sleeves  
1
*W&H dimensions furnished approximately /4 in. (6mm) undersize.  
Right hand drive is shown. Left hand drive is available upon request.  
Damper also may be rotated 180° in the field for opposite side drive.  
(Add sleeve thickness for overall sleeved damper dimension)  
 
AMCA 5.2 Pressure drop  
SMd-302M  
5D  
36x36  
12x48  
48x12  
12x12  
24x24  
* Sizes are in inches.  
12 in. x 12 in. (305mm x 305mm)  
24 in. x 24 in. (610mm x 610mm)  
36in. x 36 in. (914mm x 914mm)  
12in. X 48 in. (305mm x 1219mm)  
48 in. x 12 in. (1219mm x 305mm)  
Velocity  
(fpm)  
Pressure Drop  
(in. wg)  
Velocity  
(fpm)  
Pressure Drop  
(in. wg)  
Velocity  
(fpm)  
Pressure Drop  
(in. wg)  
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  
500  
0.01  
0.06  
0.12  
0.22  
0.34  
0.49  
0.67  
0.88  
500  
0.01  
0.05  
0.12  
0.21  
0.33  
0.48  
0.65  
0.85  
500  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
0.02  
0.08  
0.18  
0.33  
0.51  
0.74  
1.00  
1.31  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
Greenheck Fan Corporation certifies that the  
model SMD-302M shown herein is licensed  
to bear the AMCA Seal. The ratings shown  
are based on tests and procedures performed  
in accordance with AMCA Publication 511  
and comply with the requirements of the  
AMCA Certified Ratings Programs. The  
AMCA Certified Ratings Seal applies to air  
performance ratings only.  
R
 
AMCA 5.3 Pressure drop  
SMd-302M  
5D  
6D  
24x24  
12x12  
36x36  
48x12  
12x48  
* Sizes are in inches.  
12 in. x 12 in. (305mm x 305mm)  
24 in. x 24 in. (610mm x 610mm)  
36in. x 36 in. (914mm x 914mm)  
12in. X 48 in. (305mm x 1219mm)  
48 in. x 12 in. (1219mm x 305mm)  
Pressure Drop  
Pressure Drop  
Pressure Drop  
Pressure Drop  
Pressure Drop  
Velocity (fpm)  
(in. wg)  
Velocity (fpm)  
(in. wg)  
Velocity (fpm)  
(in. wg)  
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  
500  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
0.01  
0.02  
0.05  
0.09  
0.14  
0.21  
0.29  
0.38  
500  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
0.01  
0.02  
0.06  
0.10  
0.16  
0.24  
0.33  
0.43  
500  
0.01  
0.04  
0.10  
0.18  
0.29  
0.42  
0.57  
0.74  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
Greenheck Fan Corporation certifies that the  
model SMD-302M shown herein is licensed  
to bear the AMCA Seal. The ratings shown  
are based on tests and procedures performed  
in accordance with AMCA Publication 511  
and comply with the requirements of the  
AMCA Certified Ratings Programs. The  
AMCA Certified Ratings Seal applies to air  
performance ratings only.  
R
 
AMCA 5.5 Pressure drop  
SMd-302M  
36x36  
48x12  
12x12  
12x48  
24x24  
12 in. x 12 in. (305mm x 305mm)  
24 in. x 24 in. (610mm x 610mm)  
36in. x 36 in. (914mm x 914mm)  
12in. X 48 in. (305mm x 1219mm)  
48 in. x 12 in. (1219mm x 305mm)  
Velocity  
(fpm)  
Pressure Drop  
(in. wg)  
Velocity  
(fpm)  
Pressure Drop  
(in. wg)  
Velocity  
(fpm)  
Pressure Drop  
Velocity  
(fpm)  
Pressure Drop  
(in. wg)  
Velocity  
(fpm)  
Pressure Drop  
(in. wg)  
(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  
500  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
0.03  
0.12  
0.27  
0.48  
0.75  
1.08  
1.48  
1.93  
500  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
0.03  
0.12  
0.27  
0.49  
0.77  
1.11  
1.51  
1.97  
500  
1000  
1500  
2000  
2500  
3000  
3500  
4000  
0.03  
0.14  
0.32  
0.57  
0.89  
1.28  
1.75  
2.29  
Greenheck Fan Corporation certifies that the  
model SMD-302M shown herein is licensed  
to bear the AMCA Seal. The ratings shown  
are based on tests and procedures performed  
in accordance with AMCA Publication 511  
and comply with the requirements of the  
AMCA Certified Ratings Programs. The  
AMCA Certified Ratings Seal applies to air  
performance ratings only.  
R
 
Application data  
damper Sideplate and Sleeve dimensional data  
The drawings below illustrate the factory standard sideplate and sleeve mountings for the SMD-302M. The standard "A" di-  
mensions listed in the table provide adequate space for the mounting of actuators and controls.  
3
If space constraints are a problem the "A" dimension can be varied between 5 /8 in. (136mm) and 12 in. (305mm).  
Sleeve  
1
1
/2" max.  
Sideplate  
"A" dimension  
in. (mm)  
Sleeve  
Standard  
Sideplate  
Maximum  
12 (305)  
All Dampers*  
7 3/16 (183)  
6 3/16 (157)  
33/4"  
When height is  
11 in. (279) or  
less with OCI  
11 3/16  
(284)  
12  
(305)  
10 3/16  
(259)  
6 in.  
*With the exception of dampers 11 in. (279mm) high or less (12 in.  
(305mm)high or less if width is greater than 64 in. (1625mm)) with OCI  
option.  
Varies  
53/8"  
** On dampers 11 in. (279mm) high or less (12 in. (305mm)high or less if  
width is greater than 64 in. (1625mm)) with OCI option, sideplate is 16 in.  
(406mm)  
5 in.  
A
5"  
Sleeve Length  
A
12 in.**  
Space envelopes Required for Actuators  
T*  
S
and Accessories  
Externally mounted actuators always require space  
outside of the damper sideplate or sleeve. The “S” dimen-  
sion illustrates the clearance required for various available  
actuators.  
On dampers less than 18 in. (457mm) high, actuators may  
also require clearances above and/or below the sideplate  
or sleeve. “B” and “T” dimensions are worst case clear-  
ance requirements for some dampers less than 18 in.  
(457mm) high. All damper sizes under 18 in. (457mm) high  
do not require these worst case clearances. If space avail-  
ability above or below the damper sleeve is limited, each  
damper size should be individually evaluated.  
B*  
B*  
T*  
Actuator Type/Model  
S
With OCI, RRL,  
or TOR  
With OCI, RRL,  
or TOR  
24 Volt AC  
MS7520A2015/B  
MS7520A2213/B  
6 in. (152mm)  
3/8 in. (10mm)  
6 in. (152mm)  
* For dampers 18 in. (457mm) or more in height these dimensions are 0 in.  
 
damper Sizing Information  
Dampers larger than maximum single section size are supplied as a factory assembly of two or more sections of equal size.  
The following figures show damper sections and assemblies that have been qualified for operation with a single actuator.  
Larger sizes can be accommodated using multiples of these assemblies.  
Double Section  
Single Section  
50 in.  
(1270mm)  
50 in.  
(1270mm)  
32 in. (813mm)  
64 in. (1626mm)  
32 in. (813mm)  
Transitioned damper When a fire/smoke damper is being used in conjunction with round or oval ductwork, the  
SMD-302M 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.  
dimensions  
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*  
These dimensions are furnished  
*
D*  
16 in. (406mm)  
Min.  
16 in. (406mm)  
Min.  
16 in. (406mm)  
Min.  
approximately 1/4 in. (6mm) undersize,  
except round and oval dimensions  
which are approximately 1/8 in. (3mm)  
undersize.  
TYPE R  
TYPE O  
TYPE C  
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 require-  
ments of NFPA 92A, 92B, 101, and 105 and further shall  
be 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 II.  
shall have an equivalent metal thickness of 14 ga. (2mm)  
Damper frame shall be galvanized steel formed into a struc-  
tural hat channel shape with reinforced corners. Bearings  
shall be sintered bronze sleeve type rotating in extruded  
holes in the damper frame. Blade edge seals shall be sili-  
cone 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 with silicone rubber backing. Blades shall be complete-  
ly 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 24 Volt  
operation.  
Damper must be rated for mounting vertically (with blades  
running horizontal) or horizontally and be UL 555S rated for  
leakage and airflow in either direction through the damper.  
Damper blades shall be of the double skin airfoil type and  
The basis of design is Greenheck Model SMD-302M.  
Copyright ©2007 Greenheck Fan Corporation  
SMD-302M Rev. 6 April 2007  
 

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