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.
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: 165oF (75oC)
Minimum Size: 6" x 6" (152 x 152)
Maximum Size: 24" x 24" (610 x 610)
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: 350oF (177oC)