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E: For quick-connect models, please
to the internal machine manual for the
2.9.1 - Step 1: Cut pipes
When preparing refrigerant pipes, take extra care to cut and flare them properly. This will ensure efficient
ation method of the connecting pipe.
operation and minimize the need for future maintenance.
xternal machine manual does not
1. Measure the distance between the indoor and outdoor units.
t the instructions.
2. Cut the piping sections abounding by approximately 3÷4 cm on the length.
connecting refrigerant piping, do not
Use a wheel pipe cutter only to cut the pipes clamping it in short lengths so as not
to crush the pipe.
bstances or gases other than the speci ed
NEVER USE A NORMAL HANDSAW, scraps could fall inside the pipe and enter the circuitry
erant enter the unit. The presence of other
Refrigerant Piping Connection
of the system, damaging the parts severely.
or substances will lower the unit' s capacity,
an cause abnormally high pressure in the
eration cycle. This can cause explosion and
TE: For quick-connect models, please
.
er to the internal machine manual for the
allation method of the connecting pipe.
nection Instructions –
e external machine manual does not
rigerant Piping
eat the instructions.
en connecting refrigerant piping, do not
CAUTION
substances or gases other than the speci ed
3. Make sure that the pipe is cut at a perfect 90°
he branching pipe must be installed
igerant enter the unit. The presence of other
angle.
horizontally. An angle of more than 10° may
es or substances will lower the unit' s capacity,
DO NOT DEFORM PIPE WHILE CUTTING.
ause malfunction.
d can cause abnormally high pressure in the
DO NOT install the connecting pipe until
igeration cycle. This can cause explosion and
both indoor and outdoor units have been
Be extra careful not to damage, dent, or
ury.
nstalled.
deform the pipe while cutting. This will
nsulate both the gas and liquid piping to
drastically reduce the heating efficiency
prevent water leakage.
onnection Instructions –
of the unit.
efrigerant Piping
1: Cut pipes
2.9.2 - Step 2: Remove burrs
preparing refrigerant pipes, take extra
CAUTION
Burrs can affect the air-tight seal of refrigerant piping
o cut and flare them properly. This will
connection. They must be completely removed.
e efficient operation and minimize the
The branching pipe must be installed
1. Hold the pipe at a downward angle to prevent
or future maintenance.
horizontally. An angle of more than 10° may
burrs from falling into the pipe.
cause malfunction.
asure the distance between the indoor
2. Using a reamer or deburring tool, remove all burrs
from the cut section of the pipe.
DO NOT install the connecting pipe until
d outdoor units.
both indoor and outdoor units have been
ng a pipe cutter, cut the pipe a little longer
installed.
n the measured distance.
2.9.3 - Step 3: Flare pipe ends
Insulate both the gas and liquid piping to
ke sure that the pipe is cut at a perfect 90°
Proper flaring is essential to achieve an airtight seal.
prevent water leakage.
gle.
1. After removing burrs from cut pipe, seal the ends
with PVC tape to prevent foreign materials from
p 1: Cut pipes
entering the pipe.
90°
en preparing refrigerant pipes, take extra
Oblique Rough Warped
2. Sheath the pipe with insulating material.
3. Place flare nuts on both ends of pipe. Make sure
e to cut and flare them properly. This will
they are facing in the right direction, because you
ure efficient operation and minimize the
can't put them on or change their direction after
flaring.
d for future maintenance.
EN - 20
Measure the distance between the indoor
and outdoor units.
Using a pipe cutter, cut the pipe a little longer
CAUTION
The branching pipe must be installed
•
DO NOT DEFORM PIPE
horizontally. An angle of more than 10° may
WHILE CUTTING
cause malfunction.
Be extra careful not to damage, dent, or deform
DO NOT install the connecting pipe until
•
the pipe while cutting. This will drastically reduce
both indoor and outdoor units have been
the heating e ciency of the unit.
installed.
Insulate both the gas and liquid piping to
•
prevent water leakage.
Step 2: Remove burrs.
Step 1: Cut pipes
Burrs can a ect the air-tight seal of refrigerant
When preparing refrigerant pipes, take extra
piping connection. They must be completely
care to cut and flare them properly. This will
removed.
ensure efficient operation and minimize the
DO NOT DEFORM PIPE
1. Hold the pipe at a downward angle to
need for future maintenance.
prevent burrs from falling into the pipe.
WHILE CUTTING
1. Measure the distance between the indoor
2. Using a reamer or deburring tool, remove
Be extra careful not to damage, dent, or deform
and outdoor units.
2.
all burrs from the cut section of the pipe.
the pipe while cutting. This will drastically reduce
Using a pipe cutter, cut the pipe a little longer
the heating e ciency of the unit.
than the measured distance.
3. Make sure that the pipe is cut at a perfect 90°
angle.
Step 2: Remove burrs.
Point down
Burrs can a ect the air-tight seal of refrigerant
90°
piping connection. They must be completely
removed.
1. Hold the pipe at a downward angle to
Step 3: Flare pipe ends
prevent burrs from falling into the pipe.
Proper aring is essential to achieve an airtight
2. Using a reamer or deburring tool, remove
seal.
all burrs from the cut section of the pipe.
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.
Point down
3. 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 flaring.
Step 3: Flare pipe ends
Proper aring is essential to achieve an airtight
seal.
1. After removing burrs from cut pipe, seal
Copper pipe
the ends with PVC tape to prevent foreign
materials from entering the pipe.
2. Sheath the pipe with insulating material.
3. Place are nuts on both ends of pipe.
Make sure they are facing in the right
direction, because you can't put them on
a
b
Pipe
Reamer
Oblique Rough Warped
Pipe
Reamer
Flare nut
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