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Johnson JCMV2 Manual De Instrucciones página 77

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Connection Instructions –
Refrigerant Piping
CAUTION
The branching pipe must be installed
horizontally. An angle of more than
10° may cause malfunction.
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
DO NOT DEFORM PIPE
WHILE CUTTING
Be extra 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
Step 3: Flare pipe ends
Proper flaring is essential to achieve
an airtight seal.
After removing burrs from cut
1.
pipe, seal the ends with PVC tape
to prevent foreign materials from
entering the pipe.
Sheath the pipe with insulating
2.
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.
Copper pipe
4. Remove PVC tape from ends of
pipe
when
flaring work.
5. Clamp flare form on the end of the
pipe. The end of the pipe must extend
beyond the flare form.
Flare form
31
Pipe
Reamer
Flare nut
ready
to
perform
Pipe
V.2
V.3

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