Specifications include, but are not limited to: The intention of the following specifications is to supply and install a prefabricated, self-contained, variable speed, (VFD), 25 HP, horizontal centrifugal pump station with all required electrical connections and service connection, all required water connections, piping, valves, and enclosures. Controls shall be an industrial grade PLC incorporating a color touch screen operator interface with software programming written specifically for this project. Respondent shall also provide a formed and reinforced base platform and enclosure with lockable lid containing all manifolds, pumps, motors and control panels (disconnect mounted externally) to provide an integral unit ready for easy installation, anchored to a concrete pad. Complete in place and ready for use. STANDARD CONTROLS & EQUIPMENT SHALL INCLUDE: • The pump station shall be designed for 480 volt, WYE configured or closed delta balanced 3-phase power. The acceptable range of voltage shall be 455 volts (min) 495 volts (max). Open delta, phase converter, or other forms of unbalanced threephase power will not be accepted. . • External mounted NEMA 3R main disconnect panel • U.L listed control panel • Microprocessor controls with Accu-Ware station software (or approved equal) to maintain constant pressure at variable flow • Virtual Vision III (or approved equal) color Touchscreen operator interface device with active matrix LCD display featuring: Digital flow (GPM) and pressure (PSI) display; Both cumulative and resettable gallons pumped indicators; Pump ready/running status with elapsed run time display per pump; Flow-based pressure regulation to match discharge pressure with irrigation demand; Individual motor overload reporting; Minute by minute data logging saved to a removable flash RAM card; 32MB card to store approximately 12 months of data; Historic & real time X-Y plotting of pump station operation; Filter controls; Alarm log file; Ability to change system parameters such as set point pressure, time delays
