SD505-4AB Silent Knight Is An Addressable Photoelectric Smoke Detector Suited The SD505-4AB Silent Knight and SD505-ADHR/DTS addressable duct smoke detector detects smoke and products of combustion present in air moving through an HVAC duct to prevent re-circulation of smoke into the air handling system.
The SD505-ADHR is a heavy-duty metal housing with a pre-installed detector base and relay module. When smoke is detected in a duct, the unit communicates the condition to the IntelliKnight FACP.
The built-in relay module, in turn, turns off fans, blowers, and other devices. The SD505-4AB Silent Knight is a remote test switch that is used with the SD505-ADHR so you can remote test the Duct Detector. It also provides an LED indication of the status of the SD505-ADHR.
The SD505-4AB Silent Knight is designed to be used with Silent Knight's SD505-APS Photoelectric Smoke Detector and SD505-AIS Ionization Smoke Detector. Engineering Specifications The air duct smoke detector with relay module remote test switch shall be Silent Knight module SD505-ADHR/DTS. The housing shall contain a detector base, model SD505-4AB Silent Knight. The detector base and housing shall be compatible with Sile(more...)
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