What are the mounting clearances required between two PowerFlex 525 drives if they need to be vertically stacked?

For vertical stacking, there is no clearance required between frames A through D. However, for frame E, a minimum of 95 mm (3.7 in) clearance from sides must be maintained when the Fan Kit is installed. Additionally, an extra 12 mm clearance around specific components as noted on page 4 should be ensured. (Page 4)