Silent Knight SD505-ADHR 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 Silent Knight 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 IntelliKnght FACP. The built-in relay module, in turn, turns off fans, blowers, and other devices.
The Silent Knight SD505-ADHR is designed to be used with Silent Knight’s SD505-APS Photoelectric Smoke Detector and SD505-AIS Ionization Smoke Detector.
The air duct smoke detector with relay module test switch shall be Silent Knight module SD505-ADHR. The housing shall contain a detector base, Silent Knight model SD505-4AB. The detector base and housing shall be compatible with Silent Knight smoke detectors models SD505-APS and SD505-AIS. Alarm Relay rated at 10A @ 120/240 VAC and 24 VDC to control HVAC power. The module shall have separate LEDs that indicate normal or alarm conditions. The module shall have a momentary key switch for testing the duct detector.
Features / Specifications
- Two-wire connection to SLC
- LED alarm indication and communication on the sensor head
- Rugged steel backbox with clear plastic cover
- Installation template included
- Large terminal connection screws
- Operating Voltage: 24 VAC/VDC; 120/240 VAC
- Humidity: 10 to 85% RH
- Ambient Temperature: 32°F to 100°F (0°C to 37°C)
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