Add Fan Airflow to Static Pressure Readings in Four Simple Steps

摘要

When you measure static pressure, duct system problems that were previously hidden become obvious. Static pressure is a foundational cornerstone of air diagnostic testing, but it can be inconclusive unless you know fan airflow. Let's look at how you can add this valuable piece of information to your static pressure measurements and greatly improve your airflow diagnostic skills. FAN AIRFLOW TESTING The good news is that once you measure static pressure, you can estimate fan airflow in less than 30 seconds with the right information. Once technicians understand that static pressure testing gets them to fan airflow, they will see why it is important to measure it on every call. Once you have a total external static pressure (TESP) reading, there are four steps you must perform to determine fan airflow. Please note: If you skip just one of these steps, you'll likely end up frustrated because your results won't make sense.