A basic actuating device for adjusting a heat transfer fluid flow of a heating or cooling installation, for example for air conditioning a building or for the treatment, in particular thermal treatment, of food such as for pasteurising milk, comprising - a control valve, - an actuator attached to the control valve for moving the control valve and - a process controller which is mounted or installed on the control valve or the actuator, which generates a valve control signal by means of a control algorithm on the basis of at least one heating or cooling installation operating variable, such as temperature, pressure, flow rate, and has a control signal output for transmitting the valve control signal to the actuator, wherein the process controller has at least one additional control signal output, such as an actuator control signal output, for transmitting a control signal to at least one further actuator, in particular a pump or a further actuator, of the heating or cooling installation, characterized by the memory unit for at least one predefined operation variable, in particular at least one actual temperature, and/or values determined by at least one operation variable, such as basic actuating device state data, in particular diagnosis data, preferably a number of stroke movements of the control valve, a number of approach and/or distancing procedures, wherein at least one process control configuration, in particular for a predefined heating or cooling installation type and/or at least one target operating variable, in particular a series of target operating variables for controlling the process controller depending on of a series of conditions attributed to the target operating variables, in particular target times or other target operating variables, being stored on the memory unit. - a control valve, - an actuator attached to the control valve for moving the control valve and - a process controller which is mounted or installed on the control valve or the actuator, which generates a valve control signal by means of a control algorithm on the basis of at least one heating or cooling installation operating variable, such as temperature, pressure, flow rate, and has a control signal output for transmitting the valve control signal to the actuator, wherein the process controller has at least one additional control signal output, such as an actuator control signal output, for transmitting a control signal to at least one further actuator, in particular a pump or a further actuator, of the heating or cooling installation, characterized by the memory unit for at least one predefined operation variable, in particular at least one actual temperature, and/or values determined by at least one operation variable, such as basic actuating device state data, in particular diagnosis data, preferably a number of stroke movements of the control valve, a number of approach and/or distancing procedures, wherein at least one process control configuration, in particular for a predefined heating or cooling installation type and/or at least one target operating variable, in particular a series of target operating variables for controlling the process controller depending on of a series of conditions attributed to the target operating variables, in particular target times or other target operating variables, being stored on the memory unit.