How do you change a belt on an Air Handling Unit?

To change a belt on an Air Handling Unit (AHU), first, ensure the unit is powered off and locked out to prevent accidental operation. Remove the access panel to reach the belt and motor assembly. Loosen the tensioner or motor mount to relieve tension on the old belt, remove it, and install the new belt, ensuring proper alignment with the pulleys. Finally, adjust the tension as needed and reassemble the access panel before restoring power to the unit.