The mechanical Mooij Minimum thermostat is equipped with a capillary. The Minimum thermostat is connected directly to the switch panel. As soon as the temperature drops below the set point, the hatches will be closed and the fans will be stopped. The orange indication lamp on the switch panel will switch on. Also, the message "Minimum thermostat on" is passed to the controller. In this way you can also see from a distance that there is, or has been, a warning.