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® Watertight <br /> Duct Smoke Detectors <br /> ' Is your HVAC installation on the rooftop?NEMA 4-rated System <br /> Sensor watertight duct smoke detectors operate in the most <br /> challenging conditions without costly and bulky enclosures. Watertight <br /> System Sensor duct smoke detectors(D4120W conventional, DNRW <br /> intelligent) include a UV-resistant housing that provides protection <br /> against dirt, rain, and other water sources, so you can mount these <br /> detectors on HVAC equipment in harsh environments while saving on <br /> materials and labor. <br /> Watertight Duct Smoke Detectors <br /> D412OW Watertight 4-wire photoelectric duct smoke detector <br /> DNRW Watertight intelligent non-relay photoelectric low-flow duct smoke detector <br /> "Detector head sold separately <br /> • NEMA Type 4 UL listed for non-hazardous indoor <br /> and outdoor applications <br /> • UV Resistant, UL listed housing and cover material <br /> • 4-Wire Photoelectric, integrated low-flow technology <br /> Sensor-to-Power Air velocity rating from 100 ft/min to 4,000 ft/min <br /> Board Configuration (0.5 m/s to 20.32 m/sec) <br /> • Versatile mounting options: square or rectangular configuration <br /> • Plug-in sensor offers the latest sensor technology helps to <br /> prevent false alarms <br /> • Broad ranges for operating temperature(-4°F to 158°F) <br /> and humidity(0%to 95%non-condensing) <br /> • Patented sampling tube installs from front or back of the <br /> detector with no tools required <br /> 1 Increased wiring space with additional 3/4-inch conduit knockout <br /> D4S One easy-access Test/Reset button and improved LED status <br /> l:. Patented interconnect feature for multi-fan shutdown <br /> • New high contrast terminal designations <br /> _ D,120 _ duct smoke detector _ ability • Built-in short circuit protection from operator wiring errors <br /> to power two sensors from _ power board.With its • Field-selectable settings for configuring the detector <br /> sensor-to-powerboard capability,the power board • Two DPDT Form-C relay contacts <br /> of - D4120 may •- used to monitor a second D4S • 24 VAC/DC or 120VAC <br /> sensor -• perfect • applications • Backward compatibility with existing Innovair products, <br /> where monitoring •• •• - • return are required. including remote accessories <br />