FIRE DAMPER DYNAMIC

USC -Fire Damper for Use in Static Systems, Model FD

USC -Fire Damper for Use in Dynamic Systems, Model FDD 

Model FD dampers are of curtain blade type construction for vertical and horizontal installation for static applications.

The dampers are intended for use in heating, ventilating and air conditioning duct systems passing through fire resistive walls, partitions, and floors in accordance with the Standard for Installation of Air Conditioning and Ventilating Systems, NFPA 90A.

TECHNICAL CONSIDERATIONS (NOT FOR FIELD REPRESENTATIVE’S USE):

Products designated USC have been investigated using requirements contained in UL 555.