What does AHU-FC01 mean?
The supply fan is at full speed but duct static pressure still isn't reaching its setpoint.
Why does it matter?
Fan can't deliver design flow — every downstream VAV will be starved and compensate with bigger damper openings, masking the issue and burning fan power.
What should you do?
Check filters and coils for fouling (a loaded filter is the #1 cause). Inspect the fan VFD for current limit. Verify the DSP sensor is in a representative location.
How Energy Agent prices a finding
Written by Pelorus Engineering · Brent Waluzak, P.E. (FL), President, Pelorus EngineeringLast updated