Danfoss Adds to Its Portfolio of Low-GWP Compressors

Danfoss has added to its portfolio of low-GWP compressors by introducing an option to use R-513A, and expanded its operating map range to cover low lift applications for the TT Series compressor family.

Danfoss Turbocor compressors are engineered and manufactured in Tallahassee and deployed around the world to help buildings reduce energy consumption and costs.

Low-GWP refrigerant option

R-513A is a low-GWP, non-flammable (A1) alternative refrigerant to R-134a that allows chiller manufacturers to meet future HFC regulations, such as the European Union F-gas regulation. All Turbocor TT Series compressors produced starting in December 2017 with compressor firmware version 4.1 will be compatible with both R-134a and R-513A. Existing Turbocor TT Series compressor revision F models using R-134a can be retrofitted to use R-513A by changing the electronic controllers.

This refrigerant option broadens the Danfoss portfolio of Turbocor compressors using low-GWP refrigerants. In addition to the TT Series compressors, Danfoss offers the Turbocor TG Series compressors that use ultra-low-GWP refrigerant HFO-1234ze. Similar to R-513A, HFO-1234ze allows chiller manufacturers to be in compliance with upcoming refrigerant regulations that restrict the use of HFC refrigerants.

In summary, the following Danfoss Turbocor compressors now use low-GWP refrigerants:

  • Available with HFO-1234ze: Danfoss Turbocor TG Series Compressors – 40 to 150 tons
  • Available with R134a and R513A: Danfoss Turbocor TT Series Compressors – 60 to 200 tons

Low lift capabilities

Danfoss also has expanded the operating range of its Turbocor TT Series compressors to support low lift applications such as air-cooled heat pumps, enabling chiller manufacturers to expand their product offering to cover more air-conditioning and process applications. The low lift operating range allows chillers to start and operate at low condenser water temperatures that are common during cold ambient temperature conditions and gives manufacturers the flexibility to eliminate the use of economizers on chillers.

“By expanding the use of low-GWP refrigerants, including the low-GWP R-513A refrigerant option and the existing ultra-low GWP HFO-1234ze refrigerant, Danfoss Turbocor TT Series compressors can continue to be an environmentally-friendly solution that complies with evolving refrigerant regulations and standards around the world, including the European Union F-gas regulation. And with the expanded low lift capability, chiller manufacturers have the flexibility to benefit from the high-efficiency variable speed, oil-free operation of Turbocor TT Series compressors in more air conditioning applications,” says Jose Alvares, vice president, sales and marketing, Danfoss Turbocor Compressors.

“Danfoss is committed to taking a proactive approach to energy-efficiency, sustainable technologies by offering several low-GWP refrigerant options,” Alvares says. “The low-GWP refrigerant offering combined with oil-free, magnetic bearing technology provide a solution for our customers to meet environmental regulations today and in the future.”

For more information about Danfoss Turbocor Compressors, visit the website.

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