In just 2minutes and 30 seconds, Paul Rhodes https://www.linkedin.com/in/paul-rhodes-b855572b/ explains the requirements in changing an older refrigerant system to the new A2L refrigerant. He shares the importance in this because older models, including R410A, R438, and older, are decreasing in availability. He provides training on the difference in replacing the new system vs the old systems in a short, precise explanation.