Position the TurboKOOL with intake grill to the rear.
See Figure #1-A below. With hood removed, place TurboKOOL
over the roof vent frame so it fits flush to the roof
and level with the ground. It is sealed to the top side of
the roof with the verticle flanges facing upwards to form a
dam around the hole in case a water line should leak.(Vehicle
should be relatively level for installation.)
If mounting to a sloped or curved roof,
you will need a plenum, which can be fabricated
from sheet metal, marine plywood or polyethyene.
If necessary, a mounting gussett can be used to lend
rigidity to the mounting serface. It’s made of 1/4” thick
plastic and is usually fixed to the underside of the roof.