The innovative "star" engine design of the BOCK® StarCO2mpressor opens up new possibilities in electric bus and rail air conditioning: space-saving roof installation thanks to the industry's lowest overall height and lightest weight.The StarCO2mpressor range features features 2 model sizes in 4 & 6 cylinder design with a displacement of 7.3 m³/h and 10.9 m³ (50Hz) - Cooling capacity from 5 to 43 kW/heating capacity from 3 to 35 kW.