Greenheck Ceiling Radiation Damper UL Classified for Wood Truss Assemblies

November, 2017

Greenheck’s new line of ceiling radiation dampers are UL classified for installation in wood truss floor/ceiling assemblies. Model CRD-1WT is designed with a plenum box for side inlet or outlet duct connections. Model CRD-2WT’s inlet or outlet duct connection is made on top of the damper. Manufactured of galvanized steel, both models feature a standard fusible link closure device to minimize pressure drop. An optional volume controller provides the functionality of a balancing damper and enables easy positioning of the blades. Hanger or base mounting options allow for quick installation. Tested and listed in accordance with UL Standard 555C with ratings up to one hour, Models CRD-1WT and CRD-2WT are ideal for use in retirement facilities and nursing homes.

Greenheck, the worldwide leader in manufacturing and distributing air movement, conditioning and control equipment, offers the most UL certified dampers and the largest selection of AMCA licensed dampers in the industry.

For more informaiton about Greenheck products, visit or contact Greenheck, P.O. Box 410, Schofield, WI 54476-0410, (715) 359-6171, FAX (715) 355-2399.

To obtain more information about this Greenheck announcement you may:

  1. Request information via e-mail
  2. Contact your local Greenheck Representative
  3. Phone us at (715) 359-6171 or fax us at (715) 355-2399
  4. Write us at Greenheck, P.O. Box 410, Schofield, WI 54476-0410
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