Intelligent Low-Flow Photoelectric Duct Smoke Detectors with FlashScan®

General NOTIFIER FSD-751PL( A) and FSD-751RPL( A) Intelligent Pho- toelectric Smoke Duct Detectors provide low-flow technology that enables duct smoke detection throughout a broad range of airflow environments in HVAC applications. The low-flow tech- nology can detect smoke at air speed velocities of 100 feet per minute ( 0.5 m/ sec) or greater, while continuing the same reliable performance to 4, 000 feet per minute ( 20.32 m/ sec) . The intelli- gent low-flow duct detectors sample air currents passing through a duct and gives dependable performance for shutdown of fans, blowers, and air conditioning systems, preventing the spread of toxic smoke an fire gases through the protected area. FSD-751PL( A) and FSD-751RPL( A) are compatible with all NOTIFIER addressable panels. FSD-751PL( A) and FSD- 751RPL( A) provide a remote alarm output for use with auxiliary devices, such as the RA400Z( A) remote LED annunciator, as well as remote test capability with the RTS451( A) or RTS451KEY( A) Remote Test Stations. Traditional panels support addresses of 0 – 99. The Flash- Scan® protocol supports addresses of 0 – 159. The patented FlashScan communication protocol was developed by NOTI- FIER Engineering, it greatly enhances the speed of communica- tion between analog intelligent devices and the Notifier control panel. Intelligent devices communicate in a grouped fashion. If one of the devices within the group has new information, the panel stops the group poll and concentrates on single points. The net effect is response speed greater than five times that of earlier designs.