The British companies behind the development of the first chillers to
run on the new "fourth generation" HFO refrigerants are forging ahead
with their plans despite claims from Danfoss Turbocor that its
compressor has not been validated to use with these new gases.
Our story on this ground-breaking development was the talk of this
week's ASHRAE conference and AHR show in Las Vegas, with some people
there questioning the truth and accuracy of our information.
Doug Bishop, vice-president of sales at Danfoss Turbocor, manufacturers
of the oil-less compressor used in the new Turbomiser chiller, told ACR
News that his company did not offer an HFO1234ze or 1234yf compressor.
But, today, Klima-Therm and Cool-Therm, the British companies who
developed the chiller in association with Italian manufacturer Geoclima,
stood by the story.
A company statement said: "We understand that Danfoss Turbocor has not
yet given an official green light for use of HFOs with Turbocor.
However, this is a rapidly developing area, and there is sometimes a lag
between those pioneering the application of new technology and those
carrying out detailed validation. We believe this will follow in the
normal course of events, and that HFOs will become established as a long
term viable option for the future."
However, a spokesman for the companies did add that is now thought that
HFO1234yf may not be suitable for use with the current generation of
Turbomiser machines, due to the particular properties of the
refrigerant. He would not be drawn on what these were but said that
development work in this area continues.