Product Line SummaryAire Technologies Ceiling Radiation Dampers (CRDs) are engineered and tested to prevent heat from radiating into the truss or joist space in a floor-ceiling or roof-ceiling assembly. Our CRDs are offered in rectangular and round configurations as well as multiple True Truss™ enclosure types.
WOOD TRUSS APPROVED ENCLOSURESSeries 50 with boot or box, Series 51 with boot or box, Series 57, and Series 58 are approved for floor/ceiling UL L-587 and roof/ceiling P-556 designs, among others. Further information about L-587 and P-556 can be found in the UL Product iQ. These assemblies are comparable to L-521, L-550, L-562, L-563, P-522, P-544, among others. For individual listing approvals, see product submittals. Contact Aire Technologies for assistance in selecting the right ATI device for your application.
CERTIFICATIONS AND APPROVALSATI Ceiling Radiation Dampers are UL 555C Classified for use in installations rated up to 3 hours. ATI True Truss™ dampers are UL 263 certified for combustible assemblies rated up to 1 hour. ATI CRD’s have been approved by the New York City Department of Buildings MEA Division and by the California State Fire Marshal.
Series 50Read more
Series 50 With Boot | True Truss™Read more
Series 50 With Box | True Truss™Read more