Flex II Air-Cooled Chiller

Cooling capacity: 55 - 135 kW

  • High part load efficiency
  • Sustainable: very low refrigerant charge microchannel condenser coils
  • High flexibility: ability to connect up to six Flex II units of equal or different capacities to one single FlexMaster controller
  • Partial or total heat recovery (optional)
  • Quiet operation: low vibrations; chillers are available in either low or super low noise version
  • Slim design: ideal to fit in elevators for projects with difficult access

Compact: models just 1 meter wide

Flex II units can be easily lifted and moved. They fit through doorways and into standard elevators, making them a perfect choice for challenging projects involving replacement in older buildings and/or confined spaces.

Ultimate modularity - scalable up to 800 kW cooling capacity

Flex II's modularity is ideal when capacity extension is required as the building demand or process cooling demand evolves. Units can be a combination of chillers and heat pumps.

Superior (seasonal) energy performance

• Low annual operating costs thanks to low electricity usage
• Sustainable HVAC system with low carbon emissions

Large chilled water temperature range

Flex 11 units offer a large operating map to address specific design criteria in applications such as hospitals, office buildings, larger apartment buildings, warehouses and other industrial applications. Leaving chilled water temperatures between -7°C and +25°C.

  • Flex II chillers are available in 11 different cooling capacities. Features can be optimized to suit the building’s size, cooling demand and function.

  • Your Trane Sales Engineer will help you select the right chiller based on your specific performance criteria and available (roof) space.

Technical Specifications

Product name Cooling capacity Heating capacity Eurovent certification ErP Certification
Flex II Air-Cooled Chiller 55-135 kW N/A
Compressor Refrigerants Energy saving Operating mode Data protocols Unit type
R454B | R410A Heat recovery
Cooling only


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