Orbia Fluor & Energy Materials has announced new global service procedure standards for its next-generation refrigerants, Klea Edge 444A and Klea 456A. The updated guidelines are designed to help service technicians safely and effectively handle these refrigerants, supporting optimal system performance and environmental goals.
The procedures detail how to retrofit vehicles from R-134a (A1) to Klea 456A (A1) and from R-1234yf (A2L) to Klea Edge 444A (A2L). They include specific instructions on refrigerant recovery, system retrofitting, charging methods by pressure or weight, and leak testing. For example, vehicles should be evacuated with certified recovery equipment, and the refrigerant should be charged either to a specified pressure or weight, depending on system conditions and specifications. Equipment originally used for R-134a or R-1234yf can be repurposed if properly adapted.
In servicing vehicles already equipped with Klea 444A or Klea 456A, Orbia recommends using dedicated service stations to recover refrigerant and recharge systems. The standards advise recovering via the liquid valve, vacuum testing for leak integrity, and precise recharging using both recovered and virgin refrigerant where needed. All procedures emphasize compliance with SAE standards such as J639 and J2842.
“Proactively setting these service procedure guidelines is crucial for the successful adoption of R-444A and R-456A in the automotive aftermarket,” said Chuck Abbott, Global Marketing Manager, Orbia Fluor & Energy Materials. “By providing clear guidelines, we are supporting technicians and the entire industry in safely transitioning to lower GWP refrigerants.”
Special notes in the standards highlight compatibility considerations: R-444A is compatible with R-1234yf systems, and R-456A with R-134a systems, including lubricant compatibility. Orbia also advises consulting vehicle warranties and local regulations before servicing.