Model FSD-171

1-1/2 Hour - Combination Fire Smoke Damper
Tunnel-Type Corridor Ceiling

The FSD-171 combination fire smoke damper employs triple-V blades for point-of-origin control of fire and smoke in static and dynamic smoke management systems. The FSD-171 is qualified to 2,000 ft/min (10.2 m/s) and 4 in.wg. (1.0 kPa) and may be installed in vertical walls or partitions, or horizontally in floors or assemblies with fire resistance ratings up to 2 hours. The FSD-171 may also be installed in horizontal openings of metal stud or wood stud tunnel-type corridor ceilings.

Standard Construction

Frame: 5" x 1" (127 x 25) galvanized steel hat channel with inerlocking corner gusset. Equivalent to 13 ga. (2.4) channel frame. Low profile head and sill are used on sizes less than 13" (330) high.

Blades: 6" x 16 ga. (152 x 1.6) galvanized steel - triple-V.

Sleeve: 16" x 20 ga. (406 x 1.0) galvanized steel.

Axles: 1/2" (13) diameter plated steel hex.

Linkage: Concealed in frame.

Bearings: Stainless steel oilite, sleeve-type.

Seals: Silicone blade edge seals and flexible metal jamb seals.

Actuator: 120 VAC, power-open, spring-close, external mount.

Fire Closure Device:
HS-10 (electric actuators)
PFV (pneumatic actuators)    

Fire Closure Temperature: 165^oF (75^oC)

Minimum Size: 6" x 6" (152 x 152)

Maximum Size: 24" x 24" (610 x 610)

Ratings

UL 555 Fire Resistance Rating:
1-1/2 hour (vertical and horizontal)
1 hour (tunnel-type corridor ceiling)

UL 555S Leakage Class: 1 

Maximum Temperature: 350^oF (177^oC)