21 Configuration and Operation
© 2020 MacroAir Technologies Toll Free: 866 668 3247 Fax: 909 890 2313 www.macroairfans.com
Controller 4 Operation Manual 90-30027-00 Rev A-01 Date: 032720
Motor Calibration
Press the Motor Calibrate button. The screen will display a warning. If the motor is cold, press
the Calibrate Motor button again.
The screen will ask if the motor has run recently. If it has, press the Yes button. Calibration will
not occur, and you must wait until the motor is cold to perform the calibration. If the motor has
not run recently, press the No button. The fan will perform a calibration of the motor. The motor
will make a loud noise while calibrating; this is normal. If the motor calibration fails, log into the
technical support website and file a case, you will receive a call from Technical Support. The
Technical Support address is: https://MacroAirFans.com/Techsupport
Once motor calibration is done, press the lower left arrow to get to the address screen. Change
to the desired address and press the Reset button. If you do not need to change the address,
press the arrow in the lower left until you are at the fan control screen. You may now operate
your fan as desired.
Motor Type: Displays motor type.
Calibrate Motor: Calibrates the fan (not applicable to the AVD 370).
Left Arrow: Takes you to the Address screen.
Right Arrow: Takes you to the Fan Diameter screen.
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