1-1/2 Hour - Static Fire Damper
Installation Instructions
The FD4-C fire damper employs curtain style blades for point-of-origin control of fire in static and dynamic HVAC systems. The FD4-C may be installed in vertical walls or partitions, or horizontally in floors or assemblies with fire resistance ratings up to 2 hours.
Frame: 22 ga. (0.85) galvanized steel.
Blades: 24 ga. (0.7) galvanized steel - curtain.
Fire Closure Device: Fusible link.
Fire Closure Temperature: 165oF (75oC)
Minimum Size: Vertical Mount: 4" x 2" (102 x 76)
Horizontal Mount: 4" x 3" (102 x 102)
Maximum Size: Single Section: Vertical: 46" x 43" (1168 x 1092)
Horizontal: 38" x 35" (965 x 889)
Multiple Section: Vertical: 118" x 75" (2997 x 1905) or
78" x 115" (1981 x 2921)
Horizontal: 78" x 75" (1981 x 1905)
Stainless Steel: Single Section: 38" x 35" (965 x 889)
Multiple Section: Vertical: 78" x 35" (2032 x 914) or
38" x 75" (1981 x 889) or
106" x 21" (2692 x 533)
Horizontal: 78" x 35" (19812 x 889) or
38" x 75" (965 x 1905)
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