[EnergyPlus_Support] VAV Fan Avail Sch

["Alan Jackson" <alanjackson7@xxxxxxxxx>]

I have set up quit a detailed Heating and Cooling Thermostat schedule to define the space setpoints during occupied and unoccupied modes throughout the year. I was under the impression that the VAV fan would only operate when there was a call for heating or cooling in that zone but the fan seems to continuously operating during times when, for example, i have set the cooling temp to be 199C so cooling would not turn on when unoccupied but fans are running and bringing in OA. i haven't set an OA schedule because i figured fans would be off so there would be no need.

Is there a way to use the system availability manager to have the VAV fan only turn on during call from thermostat? Did I set something up wrong, because I thought this would be the default operation.

-
aj



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