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,SimplexGrinn�e// <br /> A7"yca International Campany <br /> SCOPE OF WORK <br /> ; SimplexGrinnell is renovating the existing fire alarm system.System includes a new smoke detectors,v � <br /> duct detector,and strobes. <br /> ; Installation of peripheral devices shall be per NFPA 72 and the following guidelines. <br /> � ' <br /> Ceilin�Smoke and Heat Detectors: A Smoke detectors shall be as shown on the shop drawings, no <br /> further than 21 feet from any wall and,if wall-mounted,between 4-10 inches from top of device to the <br /> �: ceiling. <br /> Duct Smoke Detectors: Duct detectors shall be 4-wire devices and provided for units that gener�ate <br /> over 2,000 cubic feet per minute(c.f.m.)airflow. One duct detector shall be provided and mounted on <br /> the supply duct per NFPA-90A. <br /> Notification Appliance Devices: Chime/strobes, and strobes will be provided. The chime/strobes and <br /> strobes shall be mounted in the wall and in locations as shown on the shop drawings.All strobe candela , <br /> shall be sized per NFPA-72. <br /> , Theory , <br /> ; This system shall operate existing conditions,as follows: � <br /> Upon activation of a manual pull station or automatic detector the system shall: <br /> activate an audible alarm tone and alarm LED on the FACP , <br /> � activate all designated chime and strobe circuits(on until silence) <br /> ' shutdown all AHU's via the 4-wire duct detectors � <br /> � automatically dial the Owner-contracted UL-listed central monitoring station ' <br /> ! Should a circuit go out of service (i.e.short-or open-circuit,ground,etc.),the system shall: <br /> activate an audible trouble tone and trouble LED on the FACP <br /> ; automatically dial the Owner-contracted UL-listed central monitoring station <br /> � <br />