EPA 608 Prep 9, Recover Before Opening — The 0 psi Rule

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: - Before opening any high-pressure refrigerant system for service or disposal, you must recover the refrigerant until the pressure reaches a minimum of 0 psig. - Intentionally venting refrigerant is a federal crime under Section 608 of the Clean Air Act; never cut a charged line. - Understand the critical difference between 0 psig (atmospheric pressure) and a deep vacuum; the exam will test this distinction as a common trap. - For small appliances using system-dependent recovery, you must recover 90% of the charge (working compressor) or 80% (inoperative compressor), and may need to apply heat to reach the target. - Proper documentation of refrigerant recovery is required for appliance disposal, and new recovery cylinders must be evacuated before their first use. 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