HVAC Air Distribution Practice Questions - HVAC Excellence Professional - Air Distribution (Written Examination) Exam

What does external static pressure (ESP) represent for a residential air handler?

The pressure drop across the indoor coil only The total static pressure the blower must overcome in the duct system outside the equipment cabinet The atmospheric pressure surrounding the unit The velocity pressure measured at the supply diffuser

Correct Answer:

The total static pressure the blower must overcome in the duct system outside the equipment cabinet

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