46
NE2572O Installation Guide
6.
Gently
slide
the
air
‐
duct
unit
side
flanges
into
the
card
guides
until
the
unit
is
seated
firmly.
Make
sure
that
the
foam
strip
is
oriented
on
top.
7.
Secure
the
air
‐
duct
unit
to
the
air
‐
duct
brackets
with
the
two
M4
thumbscrews.
M4
thumbscrews
Side flanges
Card guides
Foam