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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.
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DO NOT install the connecting pipe until both indoor and outdoor units have been installed.
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Insulate both the gas and liquid piping to prevent condensation.
Step 1: Cut pipes
When preparing refrigerant pipes, take
extra care to cut and are them properly.
minimize the need for future maintenance.
Measure the distance between the
indoor and outdoor units.
•
Using a pipe cutter, cut the pipe a
little longer than the measured
•
distance.
Make sure that the pipe is cut at a
perfect 90° angle.
•
90°
Oblique
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
Step 2: Remove burrs
piping connection. They must be completely
removed.
Hold the pipe at a downward angle to
•
prevent burrs from falling into the pipe.
Using a reamer or deburring tool, remove
•
all burrs from the cut section of the pipe.
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Rough
Warped
Point down
Step 3: Flare pipe ends
Proper aring is essential to achieve an airtight seal.
•
After removing burrs from cut pipe, seal the ends
with PVC tape to prevent foreign materials from
entering the pipe.
•
Sheath the pipe with insulating material.
•
Place are 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
aring.
Flare nut
Copper pipe
•
Remove PVC tape from ends of pipe when ready
to perform aring work.
•
Clamp are from on the end of the pipe. The end
of the pipe must extend beyond the are form.
Flare form
•
Place aring tool onto the form.
•
Turn the handle of the aring tool clockwise
until the pipe is fully ared.
25
Pipe
Reamer
Pipe
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