Summer/Winter Switchover Strategy describes how you want the common heating-cooling coil to determine when to behave as a heating coil and when to behave as a cooling coil. Local Switch (BI) adds a binary input to the application which is normally connected to a temperature switch mounted to the entering water pipe. Network adds a network input that should change state when the heating cooling plant switches modes. Supply Water Temperature adds an analog input that can be used to monitor the coil entering water temperature to determine if heating or cooling is available.