On-Line Catalog : UL Rated Fire, Smoke and Ceiling Radiation Dampers > Ceiling Radiation Dampers > Wood Truss Systems > 90° Plenum > CFD-521-90
Model CFD-521-90 1 hour - ceiling radiation damper 90° Plenum - butterfly style blade
Application
The CFD-521-90 ceiling radiation damper employs butterfly style blades for point-of-origin control of radiant heat in HVAC systems. The CFD-521-90 is installed horizontally in the ceiling membrane of combustible and non-combustible assemblies with a fire-resistance rating up to and including 1 hour.
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