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Roof-mounted AC system – AC136 AE HP (All-Electric/Heat Pump)

The AC136 AE HP (All-Electric/Heat Pump) with heat-pump Technology combines cooling and heating function in one unit. Special feature: the cooling and heating circuit is reversible. With the AC136 AE HP, Eberspächer Sütrak has succeeded in developing a tailor-made air conditioning system for trolley buses and electric vehicles. Brushless fans, 100% fresh air supply and convestors that ensure maximum efficiency complete the profile of the AC136 AE HP. The modular design ensures rapid and trouble-free installation on the bus roof.



  • System combines heating and cooling in a single device – reversible refrigerant circuit
  • Condenser suitable for tropical conditions in cooling mode
  • Different Heating and cooling performance in a single system
  • Brushless 24 V fans
  • Heat generation is up to three times as efficient than with electrical additional heater
  • Technology and components have been tested with R134a refrigerant
  • 100% fresh air supply