AEC AP Series Large Dehumidifying Dryer - Manual (Page 42)

Large Dehumidifying Dryers Controls 41
o In addition to temperature setback, close the optional air damper
valve.
Air Balance
o Requires the optional air damper valve.
o Opens the air damper valve when the difference between the return air temperature and
the “Return Air. Temperature Set point” is less than the “Open Deviation” value and
keeps it open until the difference is more than the “Close Deviation” value.