Lower GWP refrigerant on water-cooled heat pump chillers

The WFGN and WFGI water-cooled chiller and heat pumps are now available with the option of using R515B, a lower GWP HFO refrigerant that has an A1 non-flammable classification.
 
Originally both series of chillers were developed with optimised compressors and heat exchangers, enabling them to use R1234ze, a low GWP A2L (mildly flammable) refrigerant and achieve a higher SEER value.