Fantech PRO Ceiling Radiation Damper

PRO Ceiling Radiation Damper UL 555C listed for use in a 1-hour fire-rated wood truss ceiling designs 165 degree Fahrenheit fusible link High-temperature, non-asbestos, reinforced fiber thermal fabric Galvanized steel frame Ceiling Radiation Damper shall be assembled with Energy Star® rated ventilation fans, fan/lights and fans with motion/humidity sensors. CRD shall be UL and cUL listed for wood truss assemblies and meet UL 555C for use in a 1-hour fire-rated ceiling as listed. CRD shall exceed the National Fire Protection Agency NFPA-90A. Because the CRD is in an assembly it can only be rated for 1-hour. When the CRD is by itself it can be rated up to 3-hours but in an assembly, it can only be 1-hour.