Hvac Duct Static Pressure Measurement

Simply put static pressure refers to the resistance to airflow in a heating and cooling system s components and duct work.

Hvac duct static pressure measurement.

This conversation might expose some comfort problems that they are experiencing. The result of measuring static pressure is the ability to prescribe duct renovation work. Collapsed duct liner or a closed damper can be found with static pressure strategically measured across portions of the duct system. Hvac static pressure is the measurement of the force the air inside your ductwork.

Contrary to what we might imagine air is really heavy. You begin to see that the duct system is what controls comfort and efficiency. The pressure reading at the furthest air register from the furnace or air handler must be equal to the pressure measured at the closest one. The push of the air must be greater than the resistance to the flow or no air will circulate through the ducts.

Measuring static pressure is a fundamental part of diagnosing how a duct system is performing. Static pressure is a measurement of how hard a fan has to work to move airflow through a duct system. Static pressure is one of the most important factors in hvac design. One pound of air at sea level is the size of a cube measuring 2 5 square feet on each side.

It s kind of like getting your blood pressure tested when you go to the doctor at this point in time david pulled a digital manometer with two static pressure probes out of his instrument bag. If there are issues with the duct system let the homeowner know. Hvac static pressure checklist.