EPA 608 Prep 23, Type II — High-Pressure Refrigerants (R-22, R-410A, R-407C)

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: - That Type II certification covers high-pressure (R-22, R-410A) and very-high-pressure (R-744 CO2) appliances. - Why R-410A's higher operating pressures require dedicated gauges, hoses, and recovery equipment rated for that service. - The proper procedure for charging zeotropic blends like R-407C as a liquid to prevent fractionation. - The mandatory annual leak repair trigger rates for systems over 50 lbs: 10% for comfort cooling and 20% for commercial refrigeration. - Key differences between the phased-out HCFC R-22 and modern HFC refrigerants like R-410A and R-407C. 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