The D4120 and JD4P120 detectors are designed to operate on 24 VDC/VAC or 120 VAC. Alarm and supervisory relay contacts are available for control panel interface (alarm initiation), HVAC …

The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork.

Important Notes on 2:1 Sensor-to-Power Capability all InnovairFlex models. The feature is only available on the D4120 4-w 2:1 sensor-to-power capability can be enabled using one D4120 …

The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork.

A plug-in sensor head offers superior false alarm immunity. These features, plus a NEMA 4 rating, allow operators to mount the detector to rooftop HVAC equipment or use the detector in other …

View and Download System Sensor D4120 installation and maintenance instructions manual online. Air Duct Smoke Detector with Extended Air Speed Range. D4120 smoke alarm pdf …

The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints. Because the detector mounts to round or …

InnovairFlex™ 4-Wire Duct Smoke Detector provides reliable smoke detection in HVAC ducts, ensuring safety and compliance in commercial buildings.

This unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 ft/min, temperatures of -4 F to 158 F, and a humidity range of 0 to 95% non-condensing. …

The System Sensor D4120 Duct Smoke Detector 4 Wire provides reliable detection of smoke in HVAC ducts. This device is crucial for preventing the spread of smoke and fire through a …