Step 1, Choose Mounting Location Install the Charge Controller in an upright position out of direct sunlight, high temperature, and water.
Step 2, Check for Clearance Place the mppt controller in the location where it will be mounted. Verify that there is sufficient room to run wires and that there is sufficient room above and below the controller for air flow.
Step 3, Mark Holes Use a pencil or pen to mark the four mounting hole locations on the wall (mounting surface)
Step 4, Drill Holes Remove the Charge Controller and drill four size able holes in the marked location.
Step 5, Secure Controller Insert all W 5/ 16-18 sheet metal screw through each hole and tighten against the wall.