One of the first serial rolling stock applications in passenger transportation to be operated with environmentally friendly refrigerant R744 (CO2) The HVAC systems will be delivered to Siemens Mobility through the first half of 2028 Liebherr has reached a major milestone towards more sustainable mobility in Europe: The company supplies heating, ventilation and air- conditioning systems that use the natural refrigerant R744 (CO2). The HVAC system is one of the first solutions of its kind in m
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