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SYSTEM SENSOR' 2 -Wire Photoelectric Duct Smoke Detector The InnovairFlex Series are the only duct smoke detectors flexible enough to fit configurations from Innovairftwe square to rectangular and everything in between. Features The InnovairFlex D2 2 -wire photoelectric duct smoke detector features a pivoting housing that fits various applications: both square • Photoelectric, integrated low -flow technology and rectangular footprints mount to round or rectangular duct work. • Air velocity rating from 100 ft/min to 4,000 ft/min (0.5 m/s to 20.32 m /sec) This new duct smoke detector senses airflow speeds ranging • Versatile mounting options in square or rectangular configuration from 100 to 4,000 feet per minute with proven System Sensor with modular construction precision.The enhancements built into this model improve false alarm immunity (with plug -in sensor head); broaden operating • Plug -in sensor temperature (-4 °F to 158 °F) and humidity (0 to 95 percent non- • Superb false alarm immunity with the latest sensor technology condensing) ranges; while simplifying installation and maintenance. • Broader ranges for operating temperature ( -4 °F to 158 °F) and These advance features can detect smoke even in the harshest duct humidity (0% to 95% non - condensing) applications. • Patented sampling tube installs from front or back of the detector The new design provides more wiring space with an added 3 /4 inch with no tools required conduit knockout. Numbers and labels for terminal designations are • A cover tamper feature to indicate a trouble condition for removed consistent with previous Innovair models. The new sampling tube or improperly installed sensor cover can be clicked into position with one smooth motion from either the • Increased wiring space with a newly added 3 /4 inch conduit front or the back of the detector. knockout The InnovairFlex D2 duct smoke detector has signals to indicate Improved LED status trouble and maintenance conditions. Additionally, a cover tamper • 24 VDC feature is incorporated to indicate a trouble condition for removed • Backward compatibility with existing Innovair products, including or improperly installed sensor cover. An improved cover design, with remote accessories an integrated the low -flow feature, isolates the sensor head from the low -flow technology for simple maintenance. The InnovairFlex series is designed for greater flexibility and reliable smoke detection to simplify installation and maintenance.The new InnovairFlex product line is backward compatible to existing Innovair models, including remote test accessories WARNING: Duct smoke detectors have specific limitations. Agency Listings DUCT SMOKE DETECTORS ARE: NOT a substitute for an open area smoke detector, NOT a substitute for early warning detection, and NOT a replacement for a building's regular fire detection system. Refer to NFPA 72 and 90A for additional duct smoke detector LISTED application information.