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HVAC Diagnostics: External Static Pressure (ESP), Airflow & Delta T

Ty Branaman walks through the diagnostic process technicians rely on to properly set up and troubleshoot airflow issues in the field. The conversation starts with external static pressure and clears up one of the most common mistakes techs make: measuring across the entire system instead of getting a true reading of what's outside the equipment cabinet. From there, Ty covers where and how to take accurate readings on both furnaces and air handlers, the tools that make drilling test ports safer, and why checking static pressure across components like filters can reveal hidden restrictions.