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50 in. 

32 in. (813mm)

 

  50 in.

 

32 in. (813mm) 64 in. (1626mm)

50 in. 

96 in. (2435mm)

50 in.

100 in. 

 

(1270mm)

 

(1270mm)

32 in. (813mm)

 (2540mm)

 

(1270mm)

32 in. (813mm)

128 in. (2540mm)

 

(1270mm)

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 (121°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 blades shall be 16 ga. (1.5mm) galvanized steel 3V type with 
three longitudinal grooves for reinforcement. 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.

The Damper Manufacturer's submittal data shall certify all air 
performance pressure drop data is licensed 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. Dampers shall be labeled 
with the AMCA Air Performance Seal.

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. Each damper shall be 
supplied with a 165°F (74°C) RRL. The basis of design is Greenheck 
Model FSD-211.

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.

specifications

Transitioned damper 

dimensions

When a fire/smoke damper is being used in conjunction with round or oval ductwork, the

FSD-211 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)

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.

Single Section

Double Section

Copyright ©2006 Greenheck Fan Corporation

FSD-211 Rev 3 June 2006 

Содержание Combination Fire Smoke Damper FSD-211

Страница 1: ...3658mm W x 2438mm H Vertical 128 in W x 100 in H 3251mm W x 2540mm H Optional Features RRL OCI Open closed indication switches Electric or pneumatic actuators POC retaining angles Smoke detectors Mome...

Страница 2: ...tem AMCA Test Figures Figure 5 3 Illustrates a fully ducted damper This configuration has the lowest pressure drop of the three test configurations because entrance and exit losses are minimized by st...

Страница 3: ...reDrop in wg Velocity fpm PressureDrop in wg Velocity fpm PressureDrop in wg Velocity fpm PressureDrop in wg 500 0 04 500 0 02 500 0 01 500 0 01 1000 0 14 1000 0 07 1000 0 04 1000 0 06 1500 0 31 1500...

Страница 4: ...0 0 48 3500 0 33 3500 0 53 4000 1 44 4000 0 63 4000 0 42 4000 0 70 12in x12in 305mm x 305mm 24in x24in 610mm x 610mm 36in x36in 914mm x 914mm 12in x48in 305mm x 1219mm Velocity fpm Pressure Drop in wg...

Страница 5: ...m PressureDrop in wg Velocity fpm PressureDrop in wg Velocity fpm PressureDrop in wg 500 0 06 500 0 03 500 0 03 500 0 03 1000 0 22 1000 0 14 1000 0 12 1000 0 13 1500 0 50 1500 0 31 1500 0 26 1500 0 30...

Страница 6: ...her locations within a range of 6 in 152mm to 12 in 305mm for the A dimension Application Data 53 8 in 5 in Right hand drive is shown Left hand drive available upon request LH RH A Sleeve Length Varie...

Страница 7: ...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 The Damper Manufacturer s submitta...

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