The state output is set to On if the heating percent command or cooling percent command exceed the fan on threshold, the damper percent command exceeds the minimum oa position by two percent, or fan cycling is False and the occupancy is Occupied or Bypass.
The state output is set to Off if the heating percent command is less than the fan off threshold and the heating purge duration has expired, the cooling percent command is less than the fan off threshold, the damper percent command drops below the min oa position, and the fan cycling is False and the occupancy is Unoccupied or Standby.