Made of 91.1 per cent R1234ze(E) and 8.9 per cent R227ea, R515B as a A1 safety refrigerant is classified according to DIN EN378-1 and has been graded as being neither toxic nor flammable. In terms of thermodynamics, R515B reacts similarly to pure R1234ze(E). The R227ea it contains suppresses the flammability. The refrigerating capacity and performance statistics are, however, almost the same as pure R1234ze(E).

With a GWP of 299, R515B has a global warming potential that is 80 per cent less than that of R134a. R515B is therefore particularly interesting for screw compressor applications for which R134a was being used until now and which can not be changed to use flammable, low-GWP refrigerants such as R1234ze(E) or R1234yf for the most diverse of reasons.

With the BITZER software, BITZER offers users a reliable instrument for selecting suitable components for their respective systems. Its newest update makes it possible to calculate performance data for even more components in the BITZER product range. Users can access the BITZER software online (www.bitzer-software.com) or download it directly for use offline (https://www.bitzer.de/shared_media/files/BitzerWinSetup_6-15-2-2501.exe).

As an independent specialist for refrigeration and air conditioning technology, BITZER is present all over the world: with products and services for refrigeration, air conditioning and process cooling as well as transport, BITZER ensures optimum temperature conditions for trade in goods, industry processes and indoor climate control – always considering highest possible energy efficiency and quality. BITZER is represented all over the world with 72 sites in 37 countries, including its sales companies and production facilities. Trade and service partners included, the BITZER network of manufacturing, development and sales extends to almost all countries in the world. In 2019, 3,800 employees generated a turnover of €808 million; expenditure for research and development totalled €46 million.

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