RDFU Broan-NuTone Premium Radiation Damper

BNRDFU MFG #: RDFU
BNRDFU
  • Manufacturer Name: Broan-Nutone
  • Specifications
  • Documents
  • Description
  • For use in 1, 2 and 3 hour rated floor-ceiling and roof-ceiling constructions
  • Galvanized steel frame
  • High temperature, non-asbestos, reinforced fiber thermal fabric
  • Stainless steel closure springs
  • 165F fusible link
  • Removable damper allows complete fan and damper serviceability without disturbing the surrounding ceiling material
  • Meets or exceeds NFPA-90A
  • UL Classified (UL-555C)
  • Same grilles that come with standard fans and fan/lights can be used
Many codes require that exhaust fans installed in multi-family fire-rated ceilings must be Protected by dampers, which, in case of fire, Protect against the spread of heat and flame. Broan offers a variety of radiation/fire damper solutions to meet most any need. When the air temperature passing through the damper exceeds 165F the fusible link melts, triggering the thermal fabric to automatically close across the damper. Airflow is interrupted by a flame and heat barrier, preventing the rapid spread of fire to other areas.