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Coach Bus Air Conditioning

Mini Bus Rooftop Air Conditioner AC 520


The AC 520 product family is a series of roof-mounted air conditioners designed for medium-sized city and touring buses – so-called midi buses. The model range embraces different high-output variants between 15 and 30 kW, providing a high degree of application versatility.

The compact size, due to a transversally mounted condenser, as well as standardized interface to the bus roof offers great flexibility to bus manufacturers when integrating the unit into their vehicle. The return air grilles from the passenger compartment can be mounted either in the middle of the unit or at its sides, depending on the interior and roof structure of the bus model.


  • Fresh air option with up to 100% fresh air
  • Brushless blower technology optionally available
  • Proven in hot country climates, maximum operating temperature 55 degrees Celcius
  • Reduced refrigerant charge due to MCHX coil technology (Micro Channel Heat Exchange) 

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