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Please see below IBC TABLE OPENING FIRE PROTECTION ASSEMBLIES

The head-box is mounted utilizing threaded rods and unistruts. For power, 120V to motor side of the head-box. The Steel-Tex Fire Shutter (SFS) will release when receiving a signal from fire alarm system (FAS). Push to exit buttons are installed for egress. Leading edge safety sensor option. BMS relay option. Beam Sensor option.
The Hose Stream 120 First Responder is a multibarrel assembly with steel-tex fabric overlap of 24". A building occupant can step through the overlap to the opposing side of the shutter. The inverted T bottom bar holds the overlap in place for the length of the headbox.