1-1/2 Hour - Static Fire Damper
Installation Instructions
The FD4-A fire damper employs curtain style blades for point-of-origin control of fire in static dynamic HVAC systems. The FD4-A may be installed in vertical walls or partitions, or horizontally in florrs or assemblies with fire resistance 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 4" (102 x 102)
Horizontal Mount: 6" x 6" (152 x 152)
Maximum Size: Single Section: Vertical: 48" x 48" (1219 x 1219)
Horizontal: 40" x 40" (1016 x 1016)
Multiple Section: Vertical: 120" x 80" (3048 x 2032) or
80" x 120" (2032 x 3048)
Horizontal: 80" x 80" (2032 x 2032)
Stainless Steel: Single Section: 40" x 40" (1016 x 1016)
Multiple Section: Vertical: 80" x 40" (2032 x 1016) or
40" x 80" (1016 x 2032) or
108" x 24" (2743 x 559)
Horizontal: 80" x 40" (2032 x 1016) or
40" x 80" (1016 x 2032)
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