Lancaster Pump’s VARIOspeed® series of constant pressure controls are economical, pre-engineered solutions for variable speed pumping applications for booster and irrigation pumps. Energy savings can be achieved by the drive’s ability to automatically adjust the pump speed to maintain a constant pressure as flow demand conditions change in the plumbing system. Including a user-friendly keypad and 4-line LCD back-lit display, the interface is designed with the pump end user in mind. Programming parameters use pump terminology to allow non-VFD experts a greater comfort level with the drive. The controls are designed using a single factory-programmed variable frequency drive with indoor or indoor/outdoor rated enclosures.