NFPA 90A|UL 555C

• 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 degF fusible link Separate outer frame allows complete fan and damper serviceability without disturbing the surrounding ceiling material For use with fans and ENERGY STAR qualified fan/lights Sensor and light cable extensions required on this model. Purchase Model RDJUMPU separately for fans with incandescent or fluorescent lights. Purchase Model RDJUMPU1 separately for fans with LED lights

The Broan-NuTone® RDFU Radiation Damper prevents the rapid spread of fire to other areas of a home during a fire. Many codes require that exhaust fans installed in multi-family homes, with fire-rated ceilings, must be protected by radiation dampers. When the air temperature passing through the damper exceeds 165 degF, 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 of the home.