Weiss Technik GmbH
Greizer Straße 41-49, 35447 Reiskirchen-Lindenstruth, Germany
Refrigerants used in climate chambers today (so-called F-Gases, e.g. R404A) do have a high global warming potential (GWP). Since 2015 they need to be replaced by less harmful variants. We at weisstechnik® strive to build high-performance and still eco-friendly climatic chambers. Since January 2018 all our chambers are shipped with the less-harmful refrigerant R449A.
weisstechnik® and refrigerant-manufacturer Chemours worked together to test and optimize the R449A refrigerant for our climatic chambers. R449A only has one third of the global warming potential of R404A, but its thermodynamic parameters are different. Despite the required changes to the design of our cooling aggregates we have converted all product families to the new refrigerant – also as a signal in the fight against global warming.
With the introduction of our ClimeEvent product family in 2016 we have been first to market with the R449A refrigerant. Now we use this advance in experience for our customers, for example to eliminate mandatory leak checks up to mid-size chamber volumes. Our products are also not affected by the market shortage of R404A and the extreme price increase of this refrigerant.
weisstechnik® Service is retrofitting climatic chambers to long-term compliant refrigerants like R452A already since 2016. The design of our climate chambers allows the exchange without technical adjustments – and the performance of the chamber stays the same, of course. For ultra-low temperature ranges, we do retrofits with our own refrigerant WT77, which replaces R23 with identical performance.
Here you can download details about the current procurement-situation of refrigerants, about the F-gas regulation and its implications on the owners of climatic chambers.