In general, a Salt Chlorine Generator (SCG) is designed to only operate when water is flowing (pump on) and when the water is flowing at an acceptable flow rate. This could be seen as a problem with a variable speed pump. When the pump is operating below the operating RPM threshold required for minimum water flow, the SCG should be turned off. The Century 270 Variable Speed (VS270) motor has a built-in Auxiliary Load relay that can be programmed to control the operation of a SCG. This guide shows you how to wire and program the Century 270 Variable Speed (VS270) motor to turn off a 115V SCG when the VS270 is operating below the RPM threshold required for the SCG. A SCG configured to run on 230V is wired differently to the VS270. See "How To Wire a 230V SCG to a Century Variable Speed 270 Motor". Note: the AUX load feature in the VS270 can be used to power any other 115V unit (heater).