
Determine the path the
lineset will follow from
the indoor unit to the
outdoor unit and draw a
chalk line for reference.
Start the installation by
attaching the base of the
wall inlet at the lineset
starting location,
predrilling where
necessary.
Measure, cut, and attach
additional duct bases
along the path. It may be
necessary to trim the
duct length for a proper
t. After nalizing the
location, use screws to
secure the ducts to the
exterior wall through the
punch outs. Please allow
room for seasonal
expansion and
contraction.
Secure the ACR /
communication wires to
the duct bases with clips
and ties.
Complete the
installation by attaching
the top cover of the line
guard into place making
sure it clicks. Afterward,
snap the rest of the
pieces along the path to
cover the remaining
duct bases. Secure any
unions or elbows using
the included screws.
You may need to add
unions, elbows or
additional duct bases to
complete the ductwork
along the chalk line
reference.
MRCOOL® LineGuard® Installation
www.mrcool.com
®
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