Finally, the whole fluid should be discharged using “PUMP_ (3)” The Application I/O Signal List.Then using the MIXER for mixing the fluid for 30 Sec.Then the HEATER should operate till the thermostat reaches the set point.Once the level of the fluid reaches to the HIGH_LEVEL_SWITCH, “PUMP_ (1)” should turn off. Fig.By pressing the start push button, “PUMP_ (1)” which is responsible for filling the tank, should turn on to start the filling operation.