The Right Filter – Don’t Guess at Pressure Drop
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In Manual D®, the duct design process has you fill out a friction rate worksheet. In step two, you are required to record component losses. Filters count as one of those losses. So, are you looking up the pressure drop of the filters you are using? If not, it could be the cause of many systems having insufficient airflow.
Manager of HVAC Design Education at ACCA
Ed Janowiak is ACCA's Manager of HVAC Design Education and can be reached at ed.janowiak@acca.org or 703-824-8878.
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Posted In: Aside, Manual D, Technical Tips, Training
