The Lowara HV2.022W is a single phase wall mounted variable speed pump inverter with a 2.2kW rating. This Xylem Lowara Hydrovar is an easy to use wall-mounted variable speed drive which modulates the motor speed to satisfy the demand, measured by a pressure transducer. Up to 8 Hydrovar units can be connected with no additional master controller required. These controllers are widely used to control circulator pumps and pressure booster sets. Variable speed drives in general can lead to significant energy savings in applications where the duty is not constant, as well as reducing the wear on the pump components.