Water-cooled chillers with R452B option
Kaltra is the latest manufacturer to offer refrigerant R452B as a lower-GWP alternative to R410A in its chillers.
The German manufacturer is offering R452B across its Easystream-M range of modular water-cooled chillers with scroll compressors.
According to Kaltra, the new R452B chillers demonstrate similar or 2-5% higher efficiencies than those using R410A, and are able to operate with a wider range of evaporation temperatures.
A more eco-friendly alternative to R410A and a rival to R32, R452B is an A2L “mildly flammable” gas with a GWP of 676. Like R410A – a blend of R32 and R125 – this new refrigerant uses the same two components but with the addition of 26% R1234yf to 67% of R32 and only 7% R125.
The modular design of Easystream-M chiller, in sizes from 50-500kW, combined with new control software allow the use of multiple chillers virtually as a single system, thus optimising part load efficiencies.