Installation instructions available at www.greenheck.com

Model FSD-311V

Combination FIRE SMOKE DAMPERS

Steel Airfoil Blades

APPLICATION

UL 555S Leakage Class I

Model FSD-311V is a vertical blade class I leakage rated combi-

UL555 1 1/2 Hour Fire Resistance Rating

nation fire smoke damper. High strength airfoil blades ensure the

Model FSD-311V meets the requirements for fire

lowest resistance to airflow in HVAC systems with velocities to 4000

fpm (20.3m/s) and 4 in. wg (1.0 kPa).

dampers, smoke dampers and combination fire

 

smoke dampers established by:

Ratings

UL 555 Fire Resistance Rating:

 

Fire Rating:

1½ hours

Dynamic Closure Rating: Actual ratings are size dependent

Max. Velocity:

up to 4000 fpm (20.3 m/s)

Max. Pressure:

4 in. wg (1 kPa)

UL555S Leakage Rating:

 

Leakage Class:

I

Operational Rating:

Actual ratings are size dependent

Max. Velocity:

up to 4000 fpm (20.3m/s)

Max. Pressure:

4 in. wg (1 kPa)

Maximum Temperature: 350°F (177°C)- depending upon

 

the actuator

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:

Double skin airfoil shape of

 

galvanized steel with full length

 

structural reinforcement. 14 ga.

 

(2 mm) equivalent thickness.

Seals:

Extruded silicone rubber blade

 

seals. Flexible stainless steel jamb

 

seals.

Closure Device:

RRL 165°F (74°C)

Linkage:

Concealed in jamb.

Axles:

1/2 in. (13mm) dia. plated steel.

Bearings:

304 stainless steel

Size Limitations:

 

Minimum Size:

6 in. W x 8 in. H

Maximum Size-

(152mm W x 203mm H)

 

Single Section:

50 in. W x 32 in. H

 

(1270mm W x 813mm H)

Multiple Section:

100 in. W x 32 in. H

 

(2540mm W x 813mm H)

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

Sealed transitions and sleeves

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.)

PRV (pneumatic relief valve)

Security Bars

Sealed transitions and sleeves

National Fire Protection Association

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

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)

“UL CLASSIFIED (see complete marking on product)”

“UL CLASSIFIED to Canadian safety standards (see complete marking on product)”

Standard 555 & 555S (Listing #R13317)

W*

H*

*W&H dimensions furnished approximately 1/4 in. (6mm) undersize.

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Greenheck Fan installation instructions Model FSD-311V, Ratings, Standard Construction, Size Limitations

FSD-311V specifications

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