RTU-06 · Packaged RTU / DX

Supply fan running after hours with no call

The fan runs outside the schedule with neither heating nor cooling active.

Capacity-basedBAS trendsLow effortNeeds schedule

What does RTU-06 mean?

The fan runs outside the schedule with neither heating nor cooling active.

Why does it matter?

Fan 'on' instead of 'auto' after hours adds thousands of fan hours a year and pulls in unconditioned outdoor air.

What should you do?

Set the fan to auto during unoccupied periods; check for a manual override or a schedule that never releases.

How Energy Agent prices a finding

Written by Pelorus Engineering · Brent Waluzak, P.E. (FL), President, Pelorus EngineeringLast updated

Screening-level estimates; confirm with measurement and verification before capital commitment.

See these rules run on your building.

Send twelve months of interval data and a BAS trend export. Energy Agent returns a ranked list of what is wasting money, what each item is worth per year at your tariff, and what to do about it.