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RDFQFPremium Radiation Damper for QT Series Ventilation Fans

  • Overview
  • Specifications
  • Reviews
  • Answers
  • 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. NuTone offers a variety of radiation/fire damper solutions to meet most any need.

    When the air temperature passing through the damper exceeds 165°F 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.

    • 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
    • 165°F 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

    RDFQF for use with the following ventilation fan models:

    QTXEN050, QTXEN080, QTXEN110, Smart-Sense

  • Can this be used in rated assembly that has not been previously tested with a damper?

    Asked by: Franco
    Thank you for your question. Please contact the Technical Service Department at 888-336-6151 for assistance.
    Answered by: NuToneCustomerService
    Date published: 2015-01-05
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