MOTORIZED SMOKE & ALPHADUCT

USC - Alphaduct for Use in Static Systems, Model MFD

USC - Alphaduct for Use in Dynamic Systems, Model MFDD

USC - Combination Fire and Smoke Dampers, Model NFSD

USC - Smoke Dampers, Model MSD

Model MFD dampers are of Motorized multibladed type construction for vertical and horizontal installation for static applications. Blades are of single skin 3V blade type construction and parallel blade operation.

Model MFDD dampers are of Motorized multibladed type conatruction for vertical and horizontal inetallation for Dynamic applications. Blades are of single skin 3V blade type construction and parallel blade operation.

Model MFSD dampers are of Motorized fire and smoke damper multibladed type construction for vertical and horizental installation. Blades are of single skin 3V blade type construction and parallel blade operation.

Model MSD dampers are of Motorized smoke dampers multibladed type construction for vertical and horizontal installation. Blades are of single skin 3V blade type construction and parallel blade operation.

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 930A.

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

Products designated USC have been investigated using requirements contained in UL 555 and UL 5558.