NATE HVAC Exam Prep 7, Superheat and Subcooling Fundamentals

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: - How to calculate evaporator superheat, total superheat, and condenser subcooling using temperature readings and P-T pressure conversions. - What high and low superheat or subcooling values reveal about system charge, liquid floodback, and operating efficiency. - How to choose between superheat charging for fixed orifice devices and subcooling charging for TXV systems. - How to spot critical exam traps like identifying a liquid line restriction when both high superheat and high subcooling occur. - Why charging targets depend strictly on equipment design and manufacturer data rather than rule-of-thumb estimates. 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