HFO1234ze prototypes finally released

The prototype is said to be suitable for outdoor air-cooled chiller applications
Early in 2011, the British companies Klima-Therm and Cool-Therm first announced that they were making available a chiller developed in association with Italian manufacturer Geoclima, and using a Turbocor compressor running on HFO1234ze, but they very soon had to retract their announcement after Danfoss Turbocor made it clear that its compressor had not been verified for use with HFOs.
Klima-Therm and Cool-Therm accepted that further developmental work and testing were required before these products could be introduced to the market. Klima-therm later developed a chiller running on HFO1234ze using Frascold semi-hermetic compressors, which went on trial at a Waitrose supermarket in Bromley, Kent, UK, late 2011.

But in late January 2011, exactly a year after the initial announcement, Danfoss finally presented its revolutionary oil-less Turbocor compressor running on the HFO refrigerant. The prototype, named TG310, is said to be suitable for outdoor air-cooled chiller applications and is made available to original equipment manufacturers, before being offered to chiller manufacturers for shipment in April 2012.
HFO1234ze has a GWP of 6 and a Turbocor spokesperson described it as “highly energy-efficient and environmentally progressive”.