Hecu CO2

Real capacity modulation for CO₂ condensing units

Hecu sistema is the CAREL high efficiency solution for condensing unit for commercial refrigeration. It has now evolved to work with natural refrigerants by integrating management of DC inverter compressors for CO2 refrigerant. 
By using DC inverter compressors, Hecu sistema can offer real modulation of cooling capacity, so as to achieve low energy consumption above all at part loads. Such very high performance attainable with CO2 means the system both complies with the Eco-design directive on energy performance and exceeds the limits set by the F-Gas Regulation for condensing unit applications.
Hecu sistema also stands out for its real-time communication with the refrigeration units, allowing implementation of advanced system optimisation logic, with dynamic set points and extremely stable control so as to ensure perfect food preservation and reduce food waste.

Main Benefits

ico hygiene

New efficiency frontier

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Innovation suitable for all

  • Availability of DC inverter compressors for CO2 refrigerant
  • Wide and real capacity modulation to maximise efficiency at partial load
  • Self-optimisation through real time communication with indoor units


  • System solution in compact, fully-integrated equipment
  • Intuitive programming and fast commissioning procedure
  • Compact dimensions and weight, considerable reduction in TCO


ico hygiene
NO food waste

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Always connected

  • Reliable performance with precise envelope compressor control
  • No system down-time for oil return issues with advanced software feature
  • Stable product temperature thanks to modulating device and floating setpoint
  • Total connection with tERA system from smartphone, tablet and PC
  • Performance monitoring, full settings management and periodical reports
  • Benchmarks, dashboards and business intelligence tools applied to commercial refrigeration plants