Variable refrigerant flow

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Popular variable refrigerant flow solution across the world

Variable Refrigerant Flow systems (VRF) are quickly becoming popular for air conditioning solutions across the world. VRF systems not only provide flexible and energy efficient air conditioning, but also heating and hot water for residential and commercial applications.

Some of the features of this type of an air conditioning system with variable refrigerant flow include:

  • Cooling only, or reversible for heating, including heat recovery options
  • Air or water cooled systems
  • Variable capacity compressors
  • Optimised for a number of conventional and environmental refrigerants
  • Up to 64 indoor units with individual metering

Features and benefits

Compact, space-saving components

High energy efficiency

Optimized for environmentally friendly, low GWP refrigerants

Reduced applied costs and short payback times

Dedicated technical and customer service around the world

Eco labelling options

Variable refrigerant flow components in a typical system:

Variable refrigerant flow diagram - Danfoss
Variable refrigerant flow with inverter - Danfoss

Additional resources

Variable refrigerant flow with variable speed technology offers humidity control and greater comfort.

Related products

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    Compressors for air conditioning & heating

    Compressors for air conditioning, providing enhanced comfort, efficiency and sustainability for rooftops and chillers, commercial applications with refrigerants R410A, R407C, R134a and R22.

  • NRV refrigeration check valves - Danfoss
    NRV refrigeration check valves

    NRV and NRVH can be used in liquid, suction and hot gas lines in refrigeration and air conditioning plants with fluorinated refrigerants. NRV and NRVH can be supplied with flare and solder connections. They are also available with oversize solder connections providing flexibility in the use of check valves.

  • ETS electric expansion valve - Danfoss
    ETS electric expansion valves

    ETS is a series of electric expansion valves for precise liquid injection in evaporators for air conditioning and refrigeration applications. The valve piston and linear positioning design is fully balanced, providing bi-flow feature as well as solenoid tight shut-off function in both flow directions. ETS valves are compatible with electronic control solutions from Danfoss and other manufacturers.

  • GBC shut-off ball valves - Danfoss
    Shut-off ball valves for refrigeration, GBC

    GBC ball valves are manually operated shut-off valves suitable for applications where bi-directional flow is a requirement.  GBC valves are approved for applications in liquid, suction, and hot gas lines in refrigeration and air conditioning systems.

  • Solenoid valves for HVAC
    Solenoid valves for HVAC-R

    Solenoid Valves for refrigeration applications, standard types for fluorinated refrigerants and ammonia (R717) as well as solenoid valves for water and brine. The category also contains solenoid valves in stainless steel, gas powered valves and pulse solenoid valves.

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