In the air-cooled version, this series includes an energy-saving control based on dew point-dependent control of the refrigerant compressor in conjunction with a temperature and pressure control. This ensures an extremely stable dew point under all operating conditions and a power consumption proportional to the applied thermal load. Both the air-cooled and the water-cooled versions are equipped with an electronic level-controlled condensate drain on the heat exchanger, which ensures a safe condensate drainage without loss of compressed air.