Dynamic Fire Dampers
Dynamic (Fans On) Fire dampers are UL555 tested and labeled devices installed in ducts and air transfer openings or air distribution systems, designed to close upon the detection of heat.
FDD-AOW
Curtain Fire Damper - 1-1/2 Hour - Dynamic - Sleeved - Out of Wall
Product Overview
Model FDD-AOW is a dynamic Out of Wall “OW” curtain fire damper where the damper blades cannot be within the wall plane.
- Dynamic Rated to 2,000 fpm and 4” w.g.
- Sleeve of Various Lengths and Gauges
- Accommodate Grilles Up to 3” Deep
- Vertical Installation Only
- 1 ½ Hour Rating (less than 3 hours assemblies)
- UL 555 File #R25410, ULC S112
