EPA 608 Prep 22, Small Appliance Refrigerants — R-134a, R-12, and Hydrocarbons

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - The critical 1995 manufacturing year that distinguishes R-12 (CFC) systems from R-134a (HFC) systems on the exam. - The environmental trade-offs between R-12 (high ODP), R-134a (high GWP), and R-600a (low GWP). - Why the primary safety concern for modern hydrocarbon refrigerants like R-600a is their A3 flammability classification. - The specific EPA charge limit for flammable refrigerants in domestic appliances is a tiny 57 grams. - The number one rule for technicians is to always verify the refrigerant type on the appliance nameplate before service. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep