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Installation instructions available at www.greenheck.com.

Model FSD-212

Combination Fire Smoke Damper

Steel 3V Blades

UL 555S Leakage ClassII

UL 555 1 1/2 Hour Fire Resistance Rating

Application

Model FSD-212 is a combination fire smoke damper with 
3V style blades. This model is designed for operation 
and dynamic closure in emergency fire smoke situations. 
It is rated for airflow and leakage in either direction. The 
FSD-212 may be installed vertically (with blades running 
horizontal) or horizontally.

Ratings

UL 555 Fire Resistance Rating
 

Fire Rating:

 1

1

2

 hours 

Dynamic Closure Rating:

  Actual ratings are size 

 

 dependent 

 

Velocity:

  Up to 2,000 fpm (10.2 m/s) 

 

Pressure:

  Up to 6 in. wg (1.5 kPa)

UL 555S Leakage Rating
 

Leakage Class:

 II 

 

Operational Rating:

  Actual ratings are size 

 

 dependent 

 

Velocity:

  Up to 2,000 fpm (10.2 m/s) 

 

Pressure:

  Up to 6 in. wg (1.5 kPa) 

 

Temperature:

  Up to 350°F (177°C) - depending 

 

  upon the actuator

Construction

Standard

Optional

Frame Material

Galvanized steel

-

Frame Material

Thickness

16 ga. (1.5mm)

-

Frame Type

5 in. x 1in.

(127mm x 25mm)

hat channel

-

Blade Material

Galvanized steel

-

Blade Material

Thickness

16 ga. (1.5mm) 

-

Blade Type

3V

-

Linkage

Plated steel out of airstream, 

concealed in jamb

-

Axle Bearings

304SS

-

Axle Material

Plated steel

-

Blade Seals

Silicone 

-

Jamb Seals

304SS

-

Closure Device

RRL

RRL/OCI, TOR, 

PRV, or Fusible 

Link

Closure Temperature

165°F (74°C)

212°F (100°C), 
250°F (121°C), 

350°F (177°C)

Features:

•  Frames are constructed with reinforced corners. Low 

profile head and sill are used on sizes less than 17 in. 
high (432mm).

•  Blades are a double skin airfoil with full length structural 

reinforcement.

*Width and Height dimensions furnished approximately 

1

4

 in. 

(6mm) undersize. Add sleeve thickness for overall sleeved 
damper dimension.

See complete marking on 
product.
UL 555 and UL 555S 
Classification R13317

Model FSD-212 meets the requirements for fire 
dampers, smoke dampers and combination fire smoke 
dampers established by:

National Fire Protection Association

    NFPA Standards 80, 90A, 92A, 92B, 101 & 105

IBC  International 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)

W x H Minimum 

Size

Maximum Size

Single  

Section

Multiple Section

Horizontal

Vertical

4 in. wg (1 kPa) pressure

Inches

8 x 6 

32 x 50 or 36 x 48

144 x 96

128 x 100

mm

203  x 152

813 x 1270 or 

914 x 1219

3658 x 2438 3251 x 2540

6 in. wg (1.5 kPa) pressure

Inches

8 x 6

36 x 48

144 x 48

128 x 48

mm

203 x 152

914 x 1219

3658 x 1219 3251 x 1219

Summary of Contents for FSD-212

Page 1: ... out of airstream concealed in jamb Axle Bearings 304SS Axle Material Plated steel Blade Seals Silicone Jamb Seals 304SS Closure Device RRL RRL OCI TOR PRV or Fusible Link Closure Temperature 165 F 74 C 212 F 100 C 250 F 121 C 350 F 177 C Features Frames are constructed with reinforced corners Low profile head and sill are used on sizes less than 17 in high 432mm Blades are a double skin airfoil w...

Page 2: ...eam and downstream of the damper Figure 5 2 Illustrates a ducted damper exhausting air into an open area This configuration has a lower pressure drop than Figure 5 5 because entrance losses are minimized by a straight duct run upstream of the damper Figure 5 5 Illustrates a plenum mounted damper This configuration has the highest pressure drop because of extremely high entrance and exit losses due...

Page 3: ... 14 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 02 500 0 01 500 0 01 500 0 01 1000 0 09 1000 0 04 1000 0 03 1000 0 04 1500 0 20 1500 0 09 1500 0 06 1500 0 10 2000 0 36 2000 0 16 2000 0 11 2000 0 17 2500 0 56 2500 0 25 2500 0 17 2500 0 27 3000 0 81 3000 0 35 3000 0 24 3000 0 39 3500 1 10 3500 0 48 3500 0 3...

Page 4: ...120 S Belimo 31 2 in 89mm 0 6 in 152mm NA ML4XXX Series Honeywell 43 4 in 121mm 0 6 in 152mm NA MS4X09 Series Honeywell 43 4 in 121mm 0 6 in 152mm NA MS4120 Series Honeywell 123 4 in 324mm 0 6 in 152mm 9 in 229mm GND 22X 1 Siemens 123 4 in 324mm 0 6 in 152mm NA 24 Volt AC FSAF24 S Belimo 123 4 in 324mm 0 6 in 152mm NA FSLF24 S Belimo 31 2 in 89mm 0 6 in 152mm NA FSNF24 S Belimo 123 4 in 324mm 0 6 ...

Page 5: ... within a range of 6 in 152mm to 12 in 305mm for the A dimension Application Data FSD 212 50 in 32 in 813mm 32 in 813mm 64 in 1626mm 50 in 1270mm 1270mm 50 in 1270mm Single Section Double Section 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 an...

Page 6: ...ocation 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 groove...

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