Experiences transitioning automotive OEM plants to low GWP refrigerant HFO-1234yf

Abstract

HFO-1234yf is a low GWP refrigerant developed for automotive air-conditioning (A/C) systems to replace HFC-134a. Industry-wide risk assessments found that HFO-1234yf can be safely used in mobile A/C applications with results previously presented. Various global automotive OEMs have transitioned to HFO-1234yf at selected manufacturing sites in different regions. This paper documents critical steps for successful transition, including installation, commissioning and startup of storage and vehicle charging facilities. Observations will also be shared concerning potential pit-falls that have been encountered during new refrigerant implementation at these sites.