Hydromatic II Pump BoardThe Hydromatic II is a new and advanced control system for multi-stage marine chillers. It employs the latest technology and CAN Bus networking capabilities, and offers many sensor monitoring and advance control features.The Hydromatic II Pump Board is required to operate both the sea water and loop water pumps (one pump board per multi-stage system).Features:Universal 115/230 VAC 50/60 Hz power supplyDirectly drives AC contactors for sea water and loop water pumpsAuxiliary voltage input allows using contactors with coil voltages different from the main supply voltageLoop Water pressure transducer inputsSea water temperature sensorSeparate common flow switch inputSimple CAN Bus two-wire connection between stage control boards and the pump control board