The wide range of cooling capacity and the available versions, make possible the use and the combination of diverse components on the refrigeration and hydraulic circuits in the MAXIMO Free-Cooling chillers range from RC Group.

The MAXIMO series is a type of liquid chillers equipped with a built-in additional coil making Free Cooling using the outdoor air as cooling media. The free-cooling system installed on these chillers has been designed and applied by RC GROUP for the first time in the early 70's and the today's series is the result of more than 40 years experience. These chillers allow to achieve remarkable energy savings when installed in cold and temperate climate zones.

The components completeness together with the wide range of available optional accessories allow very quick and easy installation operations; the units simply need electrical and hydraulic connections.


Cooling Capacity 19.4 - 263.0 kW

Free cooling liquid chiller equipped with scroll compressors & axial condenser fans.


Cooling Capacity 21.4 - 289.0 kW

Free cooling liquid chiller equipped with scroll compressors & plug condenser fans.


Main Components

  • Housing in epoxy painted galvanized steel sheet
  • Scroll compressors
  • Axial condenser fans with EC motor (MAXIMO)
  • Plug condenser fans with EC motor (MAXIMO PF)
  • Welded plate heat evaporator
  • Pump down stop system
  • Proportional free cooling system
  • MP.COM microprocessor control
  • Electrical box in separate compartment
  • Main switch with door lock safety

Optional Accessories

  • Pumping group
  • Integrated water tank
  • LNO kit for noise reduction
  • ELN kit for extreme noise reduction
  • Partial heat reclaim
  • Water flow safety switch
  • Brine kit for glycol solution for water temperatures down to -12 deg C
  • Serial port