Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
In the Fan:VariableVolume object there is a field called Availability Schedule Name. You can create an On/Off or fraction schedule and specify it in this field to turn off the fan whenever the schedule value is 0.
Alternatively, the fan may not be turning off if your minimum flow fraction or fixed minimum air flow rate is greater than zero in the AirTerminal:SingleDuct:VAV:NoReheat object. Setting this field to zero on all the terminal units should turn off the fan when the building is unoccupied and has no heating/cooling load, even if your fan availability schedule is always 1.
