On-Line Catalog : UL Rated Fire, Smoke and Ceiling Radiation Dampers > Ceiling Radiation Dampers > Wood Truss Systems > Steel Outlet Box > CFD-521
Model CFD-521 1 hour - ceiling radiation damper butterfly style blade
Application
The CFD-521 ceiling radiation damper employs butterfly style blades for point-of-origin control of radiant heat in HVAC systems. The CFD-521 is installed horizontally in the ceiling membrane of combustible floor-ceiling or roof-ceiling assemblies with fire resistance ratings up to and including 1 hour.Documents
