Combining VF drive and microprocessor control, Technovar adjusts power consumption for optimal system performance, thereby reducing power costs and mechanical load. Models rated 1-30 hp offer 4 control methods: system curve, constant pressure, constant flow, and constant speed. Design also supports multipump staging and sequencing of up to 4 pumps. User-friendly, multilanguage OI permits quick configuration of over/undervoltage protection, overload/overhead protection, acceleration/deceleration, and high-temperature alarms.