Mircom MDH-SL2000P Photoelectric Duct Detector

The Mircom MDH-SL2000P is a 4-wire, Conventional low-flow photoelectric duct smoke detector designed for early detection of smoke moving through HVAC ductwork. It supports a wide air velocity range, provides front-access testing and reset, and includes terminals for common remote accessories to simplify service and annunciation. Key Specifications: Type: 4-wire low-flow photoelectric duct smoke detector Core Function(s): Detects smoke in HVAC ducts to help prevent smoke recirculation and enable shutdown of air handling equipment Loop/Protocol: Conventional; relay contact outputs for alarm and trouble Power: 230 VAC, 115 VAC, 24 VAC, or 24 VDC (standby currents: 12 mA @230 VAC, 22 mA @115 VAC, 55 mA @24 VAC, 14 mA @24 VDC) Indicators/UI: Green pilot and red alarm indicators; flashing LED on detector head for normal operation; front reset switch that also functions as an alarm test; magnet test capability; cover removal trouble indication Operating Range: Air velocity 100 to 4,000 ft/min; ambient temperature 32°F to 140°F (0°C to 60°C); 85 ±5% RH non-condensing/non-freezing Compatible Accessories: MSTN-1.0 – Sampling tube for 12 in or less duct width MSTN-2.5 – Sampling tube for 6 in to 2.5 ft duct width MSTN-5.0 – Sampling tube for 2.5 ft to 5.0 ft duct width MSTN-10.0 – Sampling tube for 5.0 ft to 10.0 ft duct width MRTS-KAPR – Remote station with alarm LED, pilot LED, and key-operated test/reset System Compatibility: Compatible with building automation and conventional fire alarm systems using on-board alarm and trouble contacts