International. BITZER presents efficient and sustainable solutions for HVAC systems in trains. European regulation accelerates the transition to natural refrigerants in mobile applications, boosting their use in railway heating and air conditioning.
Faced with stricter regulations, such as the F-Gas Regulation 2024/573 and potential PFAS bans under REACH, manufacturers must adapt to a new reality. In this context, BITZER, a specialist in compressors and refrigeration technologies, offers solutions that combine sustainability, efficiency and reliability for the European rail sector.
Compressors designed for the future
With decades of experience in the use of natural refrigerants, BITZER has developed reciprocating and scroll compressors specifically designed for demanding train HVAC systems. These solutions seek to match – and even exceed – the energy efficiency of traditional systems, while reducing operating and maintenance costs.
The longevity of rail vehicles makes it essential to rely on long-term sustainable technologies. In this sense, components must meet high standards of reliability and performance, as these have a direct impact on overall operating costs.
Propane: Performance and Efficiency
One of the most promising refrigerants is propane (R290), thanks to its excellent thermodynamic properties and low environmental impact. BITZER has developed the SPEEDLITE ELV52 PRO scroll compressor series, an ultra-compact, quiet and up to 50% lighter option than conventional models. Equipped with a gas-cooled permanent magnet motor for aspiration, these compressors offer outstanding performance and adaptability ideal for demanding railway environments.
For its part, the ECOLINE PRO series of reciprocating compressors, also designed for the transport sector, incorporates mechanical capacity regulators that allow almost continuous control. This feature makes them especially efficient in part-load conditions, optimizing energy consumption throughout the year.
In addition to propane, carbon dioxide (CO₂/R744) is presented as an environmentally friendly solution. BITZER CO₂LITE compressors have been designed with efficiency and lightness in mind, two key factors for roof-mounted systems in trains. With a height of only 257 mm and a weight of less than 80 kg, they offer high performance even at low ambient temperatures.
One of the most prominent advantages of the CO₂LITE is its installation versatility: it can be placed horizontally or rotated 90 degrees, giving greater flexibility to railway HVAC system designers.
European regulatory pressure and a commitment to sustainability are redefining the rail transport landscape. BITZER solutions demonstrate that it is possible to move towards greener refrigeration without compromising efficiency or reliability. Betting on natural refrigerants is not only a response to current standards, but a strategic investment for the future of rail transport in Europe.
