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.
Delta Breez BreezSmart Radiation Damper, Additional Information: For Use with Folded Ceramic Curtain Blade
Instruction/Installation Manual- 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
- Warnock-Hersey certified for use in fire resistance rated floor/ceiling or roof/ceiling assemblies