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Ruskin launches new CFD7T-SR UL Classified ceiling radiation dampers for wood truss construction. Unlike other ceiling dampers designed and tested for wood truss applications, the CFD7T-SR is supplied as a Ruskin CFDR7T damper factory mounted on top of an R6 insulated steel plenum. 

Meeting the requirements

Model CFD7T-SR meets the requirements for fire/radiation dampers established by: 

  • National Fire Protection Association NFPA Standards 80, 90A, 92A, 92B, and 101
  • ICC International Building Codes
  • CSFM California State Fire Marshal Listing (3225-0245:0123)
  • UL Classified ULC Listed: UL555C Listing R8039

UL Fire Resistance Directory Approved Ceiling Design Numbers:

The CFD7T-SR is a UL Classified Ceiling Fire Damper listed for installation in wood truss floor/ceiling and roof/ceiling designs L528, L546, L558, L574, L585, L586, L592, P533, P545, P548, P572, and H502. These designs are also similar to the fire-resistance-rated ceiling construction described in the International Building Code.

Model Application

The CFD7T-SR is UL approved for installation with duct connection below the membrane penetration. CFD7T-SR is designed to accept a grille with an OBD up to a maximum of 3” in depth without volume control and 2 1/2” grilles with volume control.

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