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Applying Insulation Tape
Locate the four precut pieces of black foam tape included with the system. There should
be two larger pieces and two smaller pieces. Once you have attached the flange pieces to
the unit, peel back the white-paper adhesive covering and place on the corresponding size
of flange. The large pieces are applied to the top and bottom of the unit and the smaller
pieces to the right and left side flanges. This foam creates a tight seal between the flange
and the wall.