A2L Unit coolers: How to manage the light flammability of A2L refrigerants thanks to risk analysis.

The introduction of the F-gas European directive came into force in January 2015 and aims to limit the use of HFCs, to help reduce global warming. Refrigerants with a GWP (Global Warming Potential) higher than 2500 have been banned from January 2020 in new installations and others will have their availability limited by falling production quotas.

There is an increased interest for lower GWP refrigerants and, as a consequence, we all see the market seeking for alternative solutions. In the quest for alternative solutions, R-744 has become the preferred refrigerant in high capacity refrigeration installations thanks to its extra low GWP (1) and its good thermophysic properties.

However, for smaller systems, the choice is not as obvious. R-744 is of course an option, but other alternatives such as A2L refrigerants are available. A2L refrigerants are very attractive as they provide a similar technology than HFCs ; while having a lower GWP. However another important aspect of A2L refrigerants must be taken into account: their light flammability.

What does this light flammability imply, what solutions can be put in place to work in secure conditions? Guillaume Munier, is working as refrigeration product manager at Lennox EMEA for 3 years. He has been in charge of the upgrade of our commercial unit coolers for A2L refrigerants and is our specialist regarding refrigerants & European regulations. Guillaume will share with you some insights about:
• The impact of the F-Gas on the European market.
• The link between flammability & GWP.
• The flammability & how to manage it.
• What is a risk analysis, who should do it & what tools can be used ?
• The implementation of the risk analysis on FRIGA-BOHN unit coolers.
If you are an Installer, a planner or OEM this presentation will help you understand the impact of lightly flammable refrigerants on the products, their integration within your installation/products and get more insights regarding the European regulation.