EST DUCT DETECTOR WIRING DIAGRAM
EST Fire & Life Safety Intelligent Initiating Devices
PDF fileThe detector assembly cover provides easy access to the smoke sensor, its wiring connections, sample and exhaust tubes, and the smoke chamber itself. Air enters the detector’s sensing chamber through a sampling tube (ordered separately) that extends into the duct and is directed back into the ventilation system through an exhaust tube (included).
Edwards Signaling - SD Series SuperDuct TM Duct Smoke
Wiring between detector and controller, along with wiring between controller and fire alarm panel (if used) is supervised. and a suitable manometer, testing can be carried out with the duct detector fully installed and wired. Test Magnet Used to activate test routine from either a SD-TRM4 Remote Test/Reset Station, or the detector
D4120 Duct Smoke Detector - systemsensor
PDF fileWiring for 4-wire Duct Smoke Detector and Accessories Important Notes on 2:1 Sensor-to-Power Capability • 2:1 sensor-to-power capability is not available for all InnovairFlex models. The feature is only available on the D4120 4-wire conventional models.
INSTALLATION AND MAINTENANCE INSTRUCTIONS D4120 Air
PDF fileApplications (A05-1004), which provides information on detector spac-ing, placement, zoning, wiring, and special applications. This manual is The duct smoke detector latches into alarm state when an alarm occurs. The D4120 and D4P120 LEDs indicate the status of power, maintenance,
Why Are There So Many Contacts on a 4 Wire Duct Detector?
If the duct detector receives power from the fire alarm panel, either the auxiliary resettable power or smoke power has to be used, or some other means of cutting the power temporarily, like a push button switch, has to be used. Four Wire Duct Detector Assembly The air duct smoke detector is a four wire smoke detector, with extra contacts. So