3 Hour - Fire Damper
Installation Instructions
The FD-380 fire damper employs airfoil blades for point-of-origin control of fire in static and dynamic HVAC systems. The FD-380 is qualified to 4,000 ft/min (20.3 m/s) and 6 in.wg. (1.5 kPa) and may be installed in vertical walls or partitions, or horizontally in floors or assemblies with fire resistance ratings up to 4 hours.
Frame: 5" x 1" (127 x 25) galvanized steel at channel with interlocking 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 14" ga. (152 x 2.0) galvanized steel - airfoil.
Axles: 1/2" (13) diameter plated steel hex.
Linkage: Concealed in frame.
Bearings: Stainless steel oilite, sleeve-type.
Seals: Silicone blade edge seals inegrally rolled and mechanically fastened to blades. Flexible metal jamb seals.
Fire Closure Device: Fusible link.
Fire Closure Temperature: 165oF (75oC)
Minimum Size: 8" x 6" (203 x 152)
Maximum Size: Single Section: Vertical: 36" x 48" (914 x 1219)
Horizontal: 32" x 48" (813 x 1219)
Multiple Section: Vertical: 120" x 96" (3048 x 2438)
Horizontal: 64" x 96" (1626 x 1829)
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