EPA 608 Prep 38, Brazing and System Opening — Recover First, Always
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: - Always recover refrigerant to 0 psig before applying heat or opening a system to prevent phosgene gas formation and explosions. - During brazing, you must flow a low-pressure purge of dry nitrogen through the tubing to prevent internal oxidation and scale. -…
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