System sensor d4120 duct detector manual

Read the System Sensor Guide for Proper Use of Smoke Detectors in Duct. Applications (A05-1004), which provides information on detector spac- ing, placement, fileslib. How does a duct detector work? How Do They Work? Duct detectors sample currents in the air handling equipment to determine if smoke or fumes are present . If smoke is detected, the device will close dampers, stop fans and blowers, and trigger an audible and visible signal at the fire control panel, Kapparos explains. How do you test duct detectors? Spray aerosol smoke into the duct through the ¼ inch hole for five seconds. Wait two minutes for the duct smoke detector to alarm . If the duct smoke detector alarms, air is flowing through the detector.
System Sensor D4120 Duct Smoke Detector, D4S Sensor Component, D4P120 Power Board Component. File preview. Click below to download immediately for free.
Free System Sensor® Duct Smoke Detector, 24 VAC Power Source, 0 to 95% Humidity, -4 to 158 deg F Operating, 14.38 in L x 5 in W x 2.5 in D Rectangular/7.75 in L Dimensions: 14.38 in L x 5 in W x 2.5 in D Rectangular/7.75 in L x 9 in W x 2.5 in D Square Operating Temperature: -4 to 158 deg f