Model FSD-171-OP

1-1/2 Hour - Combination Fire Smoke Damper
Actuator in the Airstream - Out-of-Partition

The FSD-171-OP combination fire smoke damper employs triple-V blades for point-of-origin control of fire and smoke in static and dynamic smoke management systems. These specialty dampers are approved for installation with the closed plane of the blades up to 14-1/2" (368) outside the fire rated partition and come standard with the actuator in the airstream allowing for direct service access from the face of the damper through the HVAC grille. The FSD-171-OP 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-OP 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: 20 ga. (1.0) galvanized steel with 1" (25) flange and factory installed thermal insulation on four sides.

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, internal mount.

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

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

Minimum Size: 10" x 6" (254 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)