Delta Breez BreezSmart Ventilation Fans - Ceiling Radiation Damper

Delta BreezSmart Series SMT-CRD Ceiling Radiation Damper is UL and cUL listed, and exceeds UL 555C for use in 3-hour fire rated assemblies. SMT-CRD is also Warnock-Hersey certified for use in fire rated floor/ceiling or roof/ceiling assemblies. The damper employs a folded curtain style blade for point-of-origin control of radiant heat in a ventilation system. SMT-CRD installs in the ceiling membrane for floor/ceiling or roof/ceiling assemblies with a re resistance rating up to and including 3 hours. Features: Delta BreezSmart SMT-CRD - Ceiling Radiation Damper helps to limit the radiant heat transfer through an air inlet/outlet opening in the ceiling membrane. SMT-CRD Ceiling Radiation Damper is UL and cUL listed, and exceeds UL 555C for use in 3-hour fire rated assemblies. Galvanized steel frame and sleeve Folded ceramic curtain blade 165°F fusible link High temperature, non-asbestos, reinforced fiber thermal fabric Warnock-Hersey certified for use in fire rated floor/ceiling or roof/ceiling assemblies. W...