7
FACE VELOCITY
The microprocessor controls the fan speed to maintain a constant face velocity
across the sash irrespective of its position. The value will fluctuate slightly during
normal operation, this is normal and is an indication that the fan is operating normally
and is under control. By default, the units displayed are set to M/Sec. If preferred the
units displayed can be changed to ft/min. in the Supervisor Settings (see page 11).
CONTROL BUTTONS
Light On / Off
Reduce Brightness
Increase Brightness
Fan On
Fan Off
Settings - access to settings menu
Information - Cabinet and filter information