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5 Installation
5�6 Connection Instructions –
Refrigerant Piping
CAUTION!
• The branching pipe
must be installed
horizontally. An angle
of more than 10° may
cause malfunction.
A
• DO NOT install the
connecting pipe
until both indoor and
outdoor units have been
installed.
• Insulate both the gas
and liquid piping to
prevent water leakage.
Step 1: Cut pipes
When preparing refrigerant pipes,
take extra care to cut and flare them
properly. This will ensure efficient
operation and minimize the need for
future maintenance.
1. Measure the distance between the
indoor and outdoor units.
2. Using a pipe cutter, cut the pipe a little
longer than the measured distance.
3. Make sure that the pipe is cut at a
perfect 90° angle.
90°
Oblique Rough Warped
Oblique Rough Warped
Multi Split Type Air Conditioner / User Manual
WARNING!
careful not to damage, dent,
or deform the pipe while
cutting. This will drastically
reduce the heating efficiency
of the unit.
Step 2: Remove burrs
Burrs can affect the air-tight seal of
refrigerant piping connection. They
must be completely removed.
1. Hold the pipe at a downward angle
to prevent burrs from falling into the
pipe.
2. Using a reamer or deburring tool,
remove all burrs from the cut section
of the pipe.
Point down
Point down
Step 3: Flare pipe ends
Proper flaring is essential to achieve an
airtight seal.
1. After removing burrs from cut
pipe, seal the ends with PVC tape
to prevent foreign materials from
entering the pipe.
2. Sheath the pipe with insulating
material.
3. Place flare nuts on both ends of pipe.
Make sure they are facing in the right
direction, because you can't put them
on or change their direction after
flaring.
Be extra
Pipe
Pipe
Reamer
Reamer
35 / EN
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