12Install the V-supports.
12-1 Thread a Type C leveling bolt about 1/2 of the way into the outer face of the shortest angle of each Type C V-support.
12-2 Install each V-support to the Cabinet with four Type B screws. Make sure the V-support is just past the window sill.
12-3 Adjust the leveling bolts until the Cabinet tilts slightly downward towards outside. Make sure you have about a 6.4mm(1/4") tilt backwards.
Use a wood block between the leveling bolts and the wall if the wall is weak or if the weight of the Air Conditioner falls between the studs in the wall.