The contractor shall furnish and install a complete fire alarm system with
manual stations, detectors, voice and visual notification appliances, network node panels, remote
power supplies, AHU interfacing, elevator recall interfacing, security system and door interfacing,
kitchen equipment interfacing, etc. to provide a complete building voice evacuation system.
Provide a minimum of 70 dBA sound level, with no ambient background sound, throughout all
rooms and corridors. Provide a minimum Common Intelligibility Scale rating of 0.70. Provide
speaker locations such that speaker spacing is no more than 20 feet between speakers in open
areas. Provide strobes, speakers, and speaker-strobes in all areas and rooms shown on the
drawings. Due to ambient lighting, ceiling mounted strobes shall be spaced at 0.7 times the
spacing indicated in NFPA 72. Provide two (2) speaker/strobes minimum for all elevator machine
and mechanical rooms. Provide strobes only in restrooms with speaker within 5 feet outside
restroom door. Provide synchronization of all strobes per floor and all floors that are visually
connected.