The MRP-2001 is a six-zone FACP for single and dual hazard deluge and preaction applications. The MRP-2001 provides reliable fire detection, signaling and protection for commercial, industrial and institutional buildings requiring water-based releasing. The MRP-2001 is compatible with System Sensor’s I3 detectors which are conventional smoke detectors that can transmit a maintenance trouble signal to the FACP indicating the need for cleaning and a supervisory ‘freeze’ signal when the ambient temperature falls below the detector rating of approximately 45°F (7.22°C). In addition, the control panel is compatible with conventional input devices such as two-wire smoke detectors, four-wire smoke detectors, pull stations, waterflow devices, tamper switches and other normally-open contact devices.