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 . <EOS>