FD4D-IMB

1-1/2 Hour - Dynamic Rated - Fire Damper

Overview

The FD4D-IMB fire damper employs out of the air stream cutain style blades and a factory installed integral mounting angle for point-of-origin control of fire in static and dynamic HVAC systems. The inegral mounting angle is designed and approved to be fastened directly to the fire separation and may be installed under the drywall in metal stud construction. The FD4D-IMB is qualified to 4,000 ft/min (20.3 m/s) and 4 in.wg. (1.o kPa) and may be installed in vertical walls or partitions with fire resistance ratings up to 2 hours.

Resources

Product Sheets

PDF FD4D-IMB Product Sheet

Installation Instructions

PDF FD4-IM Installation Instructions.pdf
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Accessories

PDF FD Operation and Maintenance

Standard Construction

Sleeve/Frame: Integral 12" x 20 ga. (305 x 1.0) galvanized steel with 1-1/2" x 20 ga. (38 x 1.0) galvanized steel inegral single side mounting angle.
Blades: 24 ga. (0.7) galvanized steel - curtain style.
Fire Closure Device: UL Listed fusible link.
Fire Closure Temperature: 165^oF (75^oC)
Minimum Size: 6" x 4" (152 x 102)
Maximum Size: Single Section: Vertical: 36" x 44" (914 x 1118)

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