View and Download Edwards 3100738 manual online. SuperDuct Signature Duct Smoke Detector. 3100738 smoke alarm pdf manual download.. Model D4120 and D4S Duct Smoke Detectors utilize 4-wire photoelectric tech-nology for the detection of smoke. This detection method, when combined with an efficient housing, samples air passing through the duct allowing de-tection of a developing hazardous condition.
Product description The SuperDuct Conventional Two-Wire Duct Smoke Detector detects the presence of smoke in a building's HVAC system under extended temperature ranges. Its primary purpose is to provide early warning of an impending fire and to prevent smoke from circulating throughout the building.. Related documents Install the duct smoke detector on a flat section of HVAC duct between For information regarding duct smoke detector installation, testing, and six and ten duct widths from any bends or obstructions.