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FL 3/16 <br />DIGITAL, ADDRESSABLE FIRE-ALARM SYSTEM 283111 - 5 <br />D. Initiating-Device, Notification-Appliance, and Signaling-Line Circuits: <br />1. Pathway Class Designations: NFPA 72, Class B. <br />2. Pathway Survivability: Level 0. <br />E. Notification-Appliance Circuit: <br />1. Audible appliances shall sound in a three-pulse temporal pattern, as defined in NFPA 72. <br />2. Where notification appliances provide signals to sleeping areas, the alarm signal shall be <br />a 520-Hz square wave with an intensity 15 dB above the average ambient sound level or <br />5 dB above the maximum sound level, or at least 75 dBA, whichever is greater, measured <br />at the pillow. <br />3. Visual alarm appliances shall flash in synchronization where multiple appliances are in <br />the same field of view, as defined in NFPA 72. <br />F. Elevator Recall: <br />1. Elevator recall shall be initiated only by one of the following alarm-initiating devices: <br />a. Elevator lobby detectors except the lobby detector on the designated floor. <br />b. Smoke detector in elevator machine room. <br />c. Smoke detectors in elevator hoistway. <br />2. Elevator controller shall be programmed to move the cars to the alternate recall floor if <br />lobby detectors located on the designated recall floors are activated. <br />3. Water-flow alarm connected to sprinkler in an elevator shaft and elevator machine room <br />shall shut down elevators associated with the location without time delay. <br />a. Water-flow switch associated with the sprinkler in the elevator pit may have a <br />delay to allow elevators to move to the designated floor. <br />G. Door Controls: Door hold-open devices that are controlled by smoke detectors at doors in <br />smoke-barrier walls shall be connected to fire-alarm system. <br />H. Remote Smoke-Detector Sensitivity Adjustment: Controls shall select specific addressable <br />smoke detectors for adjustment, display their current status and sensitivity settings, and change <br />those settings. Allow controls to be used to program repetitive, time-scheduled, and automated <br />changes in sensitivity of specific detector groups. Record sensitivity adjustments and <br />sensitivity-adjustment schedule changes in system memory. <br />I. Transmission to Remote Alarm Receiving Station: Automatically transmit alarm, supervisory, <br />and trouble signals to a remote alarm station. <br />J. Primary Power: 24-V dc obtained from 120-V ac service and a power-supply module. Initiating <br />devices, notification appliances, signaling lines, trouble signals, supervisory and digital alarm <br />communicator transmitters and digital alarm radio transmitters shall be powered by 24-V dc <br />source. <br />1. Alarm current draw of entire fire-alarm system shall not exceed 80 percent of the power- <br />supply module rating. <br />K. Secondary Power: 24-V dc supply system with batteries, automatic battery charger, and <br />automatic transfer switch. <br />2.5 MANUAL FIRE-ALARM BOXES <br />A. Manufacturers: Subject to compliance with requirements, provide products by one of the <br />following: <br />1. Faraday. <br />2. Fire-Lite Alarms, Inc.; a Honeywell International company. <br />3. Gamewell - FCI by Honeywell. <br />4. Notifier. <br />5. Siemens Industry, Inc.; Fire Safety Division. <br />6. Silent Knight. <br />B. General Requirements for Manual Fire-Alarm Boxes: Comply with UL 38. <br />1. Single-action mechanism, pull-lever type; with integral addressable module arranged to <br />communicate manual-station status (normal, alarm, or trouble) to fire-alarm control unit. <br />DocuSign Envelope ID: 40CF07BE-0F08-4B66-B4FD-884A0A07C01C