Variable refrigerant flow

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Popular 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
  • Optimized 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 application diagram

Highlighted products

  • if (isSmallPicture) { Danfoss' family of compressors for air conditioning and heating; } else if (isBigColumns) { Danfoss' family of compressors for air conditioning and heating } else { Danfoss' family of compressors for air conditioning and heating }
    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.

  • if (isSmallPicture) { Product photo of the Danfoss line of solenoid valves for HVAC; } else if (isBigColumns) { Product photo of the Danfoss line of solenoid valves for HVAC } else { Product photo of the Danfoss line of 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.

  • if (isSmallPicture) { Micro plate heat exchangers - Danfoss; } else if (isBigColumns) { Micro plate heat exchangers - Danfoss } else { Micro plate heat exchangers - Danfoss }
    Micro Plate™ technology

    The next step in application-focused, high-performance heat exchanger
    design, Micro Plates™ are a revolutionary technology, specially created for
    district energy solutions and for use in heat pumps, chillers, and close control
    systems for cooling capacities up 800 kW / 225 TR.

  • if (isSmallPicture) { Product photo of the various ball valves available by Danfoss; } else if (isBigColumns) { Product photo of the various ball valves available by Danfoss } else { Product photo of the various ball valves available by Danfoss }
    GBC shut-off ball valves

    Manually controlled, bi-directional shut-off valves for refrigeration, available with or without an external access port.

  • if (isSmallPicture) { Product photo of the NRV refrigeration check valves by Danfoss; } else if (isBigColumns) { Product photo of the NRV refrigeration check valves by Danfoss } else { Product photo of the NRV refrigeration check valves by 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.

Contact us

For further information, please contact us.