Refrigerant Piping Connections; Prepare Exterior Wall Hole; Unwind Quick Connect® Line Set To Necessary Length - MrCool DIY E Star Series Installation & Owner's Manual

Refrigerant Piping Connection
Step 1: Prepare exterior wall hole
Before the refrigerant piping can be installed and
connected to the indoor and outdoor units, some
additional steps are required to prepare the exterior.
1.
Install finishing ring/cap to exterior portion of the
wall hole.
2.
Place your hand on the underside of the piping
coming through the exterior wall hole (from
indoor unit), close to the wall. With your other
hand, using even pressure, carefully bend the
piping downward toward the wall, being mindful
not to damage or dent the piping in the process.
CAUTION
Be extremely careful not to dent or damage the
piping while bending it down the exterior wall, as
this could negatively affect the performance.
3. Pack the wall hole with the supplied Neoprene
(or Spray Foam can be used) to seal the hole,
filling any space that was not taken up by the
refrigerant piping and lines.
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Step 2: Unwind Quick Connect® Line Set to
necessary length
1.
Use your hands to slowly unwind the copper piping
of one end of the Quick Connect® Line Set. The end
you unwind will connect to the indoor unit piping.
Only unwind as much as necessary for your
application, and allow any excess to remain coiled
(Refer to Fig. 6.1).
MINIMUM BEND RADIUS
When bending connective refrigerant piping, it
needs to have a minimum bend radius of 4 inches
(Refer to Fig 6.1).
CAUTION
If the pipe is repeatedly bent or extended, it will
become hard and difficult to manipulate. Avoid
bending or extending the pipe more than 3 times,
or excessively, as it could break.
Carefully unroll to indoor
handler connection
mrcool.com
Radius
Keep excess coiled
Connect directly to
exterior condensor