Liebherr supplies propane-based HVAC systems for ÖBB FLIRT Akku trains

Liebherr-Transportation Systems will supply heating-, ventilation- and air-conditioning (HVAC) systems that use propane (R290) as natural refrigerant for 16 battery electric multiple unit (BEMU) FLIRT Akku trains. The trains in three car-configuration are manufactured by Stadler Bussnang AG (Switzerland) and the initial delivery of Liebherr’s three saloon and two driver’s cab HVAC units will take place during this summer.

The battery trains will be operated by the ÖBB and shall replace parts of the Austrian Federal Railway’s existing diesel train fleet. The FLIRT Akku trains with a seating capacity of 160 passengers each are intended foremost for use on non-electrified or only partially electrified lines along the Kamptalbahn in Lower Austria.

Roland Friedrich, Global Key Account Manager for Stadler, commented: « We are very thankful for the trust Stadler Bussnang has placed in us. With our propane-based HVAC system we offer vehicle manufacturers and operators an efficient solution for a more sustainable mobility. For us as an Austrian based company, we are looking forward to further support our customers and local operators applying and servicing propane-based HVAC systems. »

Propane: Maximum cooling performance with minimal energy consumption

The HVAC technology developed by Liebherr using propane as refrigerant is easy to service and guarantees rail vehicle operators a reliable product solution with low downtime. The concept takes all relevant safety requirements, such as the flammability for the refrigerant, into account.

Propane (R290) is a natural alternative to conventional, environmentally harmful refrigerants. In terms of pressure, it is very similar to the refrigerant R134. Up to the climate condition and configuration with a GWP of up to three, it provides a low greenhouse potential as well as maximum cooling performance with minimal energy consumption.