You will notice similar efficiency and cooling capacity when switching from R404A to R448/449A or R452A.
However, if you select the correct piping, settings, valve dimensions, and condensing and evaporating sizes, it’s possible to improve seasonal and part-load efficiency in new installations.
On top of the A1 class and natural refrigerants, A2L refrigerants offer even higher GWP reductions with good performance and efficiency.
The refrigeration systems need to be designed to comply to the requirements for flammable refrigerants. Please only use components which are approved for your specific refrigerant. To ensure best performance and reliable operation of your new A2L installation, please use Coolselector for component and pipe size selection.
-> For more information about the impact on system performance and components, access the Retrofit Tool in Coolselector.