Greenheck Fan Ventilation Hood FSD 331 User Manual

model Fsd-331  
Combination Fire smoke dampers  
APPLICATION  
Steel Airfoil Blades  
Model FSD-331 is a high performance combination fire smoke damper  
with extremely low leakage. High strength airfoil blades ensure the  
lowest resistance to airflow in HVAC systems with velocities to 2000  
fpm (10.2 m/s) and pressures to 4 in. wg (1 kPa). Model FSD-331 may  
be installed vertically (with blades running horizontal) and is rated for  
airflow and leakage in either direction.  
UL 555S Leakage Class I  
UL555 3 Hour Fire Resistance Rating  
Model FSD-331 meets the requirements for fire  
dampers, smoke dampers and combination fire  
smoke dampers established by:  
RATINgs  
National Fire Protection Association  
UL 555 Fire Resistance Rating  
NFPA Standards 80, 90A, 92A, 92B, 101 & 105  
Fire Rating:  
3 hours  
IBC International Building Codes  
ICBO uniform Building Codes  
CsFm California state Fire marshal  
Fire Damper Listing (#3225-0981:103)  
Leakage (Smoke) Damper Listing (#3230-0981:104)  
New York City (MEA listing #260-91-M)  
Dynamic Closure Rating: Actual ratings are size dependent  
Max. Velocity:  
Max. Pressure:  
up to 2000 fpm (10.2 m/s)  
4 in. wg (1 kPa)  
UL555S Leakage Rating  
Leakage Class:  
I
Operational Rating:  
Max. Velocity:  
Max. Pressure:  
Actual ratings are size dependent  
up to 3000 fpm (15.2m/s)  
4 in. wg (1 kPa)  
Maximum Temperature: 350°F (177°C)- depending upon the  
actuator  
“uL CLAssIFIed (see complete marking on  
product)”  
“uL CLAssIFIed to Canadian safety standards  
(see complete marking on product)”  
Standard 555 & 555S (Listing #R13317)  
sTANdARd CONsTRuCTION  
Frame:  
5 in. x 1 in. (127mm x 25 mm)  
galvanized steel hat channel with  
reinforced corners. A low profile head  
and sill are used on sizes less than  
17 in. (432mm)  
Greenheck Fan Corporation certifies that the  
model FSD-331 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  
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.  
Concealed in jamb.  
AMCA Certified Ratings Programs. The  
R
AMCA Certified Ratings Seal applies to air  
performance ratings only.  
Linkage:  
Closure Device:  
Axles:  
RRL 165°F (74°C)  
12 in. (13mm) dia. plated steel.  
Bronze sleeve type.  
Bearings:  
sIze LImITATIONs:  
minimum size:  
8 in. W x 6 in. H  
(203 mm W x 152mm H)  
maximum size (Vertical Only):  
Single Section:  
32 in. W x 36 in.H  
(813mm W x 914mm H) or  
30 in. W x 48 in. H  
(762mm x 1219mm)  
120 in. W x 96 in. H  
(3048mm W x 2438mm H)  
Multiple Section:  
LH  
OPTIONAL FeATuRes:  
H*  
• RRL/OCI (Open closed indication switches)  
• 165ºF (74°C), 212ºF (100°C), 250ºF (121°C), 350ºF (177°C) RRL's  
available  
• TOR (remote override closure allows damper to perform smoke  
management functions during a fire emergency.)  
• Electric or pneumatic actuators to accomplish smoke management  
and system functions.  
W*  
• POC retaining angles  
RH  
• Smoke detectors  
• Momentary Switch  
*W&H dimensions furnished approximately 1/4 in. ( 6 mm) undersize.  
(Add sleeve thickness for overall sleeved damper dimension)  
Right hand drive is shown. Left hand drive is available upon request.  
Transitions (R, C, O)  
• PRV (pneumatic relief valve)  
• Security Bars  
• Sealed transitions and sleeves  
 
AmCA 5.2 Pressure drop  
Fsd-331  
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 FSD-331 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  
Fsd-331  
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  
(in. wg)  
Velocity (fpm)  
(in. wg)  
Velocity (fpm)  
(in. wg)  
Velocity (fpm)  
(in. wg)  
Velocity (fpm)  
(in. wg)  
Velocity (fpm)  
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 FSD-331 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  
Fsd-331  
*
36x36  
48x12  
12x12  
12x48  
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  
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 FSD-331 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 sleeve dimensional data  
The drawings below and corresponding table show the position of the FSD-331 damper when mounted in a factory sleeve.  
The standard mounting locations provide enough space for the mounting of actuators, controls and allow space for  
installation of retaining angles and duct connections.  
The standard location of a damper mounted in a factory sleeve ("A" dimension) is shown below. The damper can be  
positioned at other locations within a range of 6 in. (152mm) to 12 in. (305mm) for the "A" dimension.  
1
1
/2" max.  
"A" Dimension  
in. (mm)  
All Dampers*  
Standard  
Maximum  
12 (305)  
12 (305)  
33/4"  
7 3/16 (183)  
12 (305)  
When H is 11 in. (279mm) or  
less with OCI, RRL, or TOR  
*With the exception of dampers 10 in. high (254mm) or less.  
NOTE: Entire damper frame is not required to be installed within the  
wall. The damper blades, when closed should be contained within  
the wall.  
6"  
Varies  
53/8"  
LH  
RH  
A
5"  
Sleeve Length  
T*  
Right hand drive is shown  
Left hand drive available upon request  
Actuators and Accessories  
S
space envelopes  
Externally mounted actuators always require space  
outside of the damper sleeve. The “S” dimension  
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 sleeve. “B” and “T” dimensions are worst case  
clearance requirements for some dampers less  
than 18 in. (457 mm) high. All damper sizes under  
18 in. (457mm) high do not require these worst case  
clearances. If space availability above or below the  
damper sleeve is limited, each damper size should be  
individually evaluated.  
B*  
B*  
T*  
Actuator Type/Model  
S
With  
With  
RRL, RRL/OCI, or TOR RRL, RRL/OCI, or TOR  
120 Volt AC  
ML-4XXX Series Honeywell  
MS-4XXX Series Honeywell  
MS-4120 Series Honeywell  
5¼ in. (133mm)  
6 in. (152mm)  
6 in. (152mm)  
¾ in.(19mm)  
3/8 in. (10mm)  
3/8 in. (10mm)  
6 in. (152mm)  
6 in. (152mm)  
6 in. (152mm)  
24 Volt AC  
ML-8XXX Series Honeywell  
MS-8XXX Series Honeywell  
MS-8120 Series Honeywell  
5¼ in. (133mm)  
6 in. (152mm)  
6 in. (152mm)  
¾ in.(19mm)  
6 in. (152mm)  
6 in. (152mm)  
6 in. (152mm)  
6 in. (152mm)  
6 in. (152mm)  
Pneumatic (25 psi min.)  
331-4551 Powers  
331-2976 Powers  
MK2-7121 Invensys  
1 in. (25mm)  
2 3/8 in. (60mm)  
3 3/4 in. (95mm)  
6¼ in. (159mm)  
12 1/8 in. (308mm)  
16½ in. (419mm)  
6½ in. (165mm)  
9¼ in. (235mm)  
10 in. (254mm)  
* 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 maximum damper section size and assembly configurations for multi-section dampers.  
Double Section  
Single Section  
48 in.  
(1219mm)  
36 in.  
(914mm)  
30 in. (762mm)  
60 in. (1524mm)  
32 in. (813mm)  
When a fire/smoke damper is being used in conjunction with round or oval ductwork, the  
Transitioned damper  
dimensions  
FSD-331 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)  
These dimensions are furnished  
*
21/8in.  
(54mm)  
(54mm)  
approximately 1/4 in. (6mm) undersize,  
except round and oval dimensions  
which are approximately 1/8 in.(3mm)  
undersize.  
*
W
W*  
D*  
16 in. (406mm)  
Min.  
16 in. (406mm)  
Min.  
16 in. (406mm)  
Min.  
T
= (2)(Sleeve Thickness)  
s
TYPE R  
TYPE O  
TYPE C  
specifications  
Combination Fire Smoke Dampers meeting the following  
Damper blades shall be of the double skin airfoil type and shall  
have an equivalent thickness of 14 ga. (2mm) . Damper frame shall  
be galvanized steel formed into a structural 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 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.  
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, and 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 3 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 350° F (177°C) minimum and shall be  
operational and dynamic 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  
horizontal) and be UL 555S rated for leakage and airflow in either  
direction through the damper. Each damper shall be supplied with  
a 165°F (74°C) RRL. Testing and ratings to be in accordance with  
AMCA standard 500-D.  
The basis of design is Greenheck Model FSD-331.  
Copyright © 2008 Greenheck Fan Corporation  
FSD-331 Rev 1 March 2008  
 

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