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5. While rmly gripping the nut, use a torque
wrench to tighten the are nut according
to the torque values in above table.
NOTE: Use both a spanner and a torque wrench
when connecting or disconnecting pipes to/from
the unit.
CAUTION
Ensure to wrap insulation around the piping.
•
Direct contact with the bare piping may
result in burns or frostbite.
Make sure the pipe is properly connected.
•
Over tightening may damage the bell mouth
and under tightening may lead to leakage.
NOTE ON MINIMUM BEND RADIUS
Carefully bend the tubing in the middle
according to the diagram below. DO NOT bend
the tubing more than 90° or more than 3 times.
Bend the pipe with thumb
min-radius 10cm (3.9")
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6. After connecting the copper pipes to the indoor
unit, wrap the power cable, signal cable and the
piping together with binding tape.
NOTE: DO NOT intertwine signal cable with
other wires. While bundling these items
together, do not intertwine or cross the signal
cable with any other wiring.
7. Thread this pipeline through the wall and
connect it to the outdoor unit.
8. Insulate all the piping, including the valves of
the outdoor unit.
9. Open the stop valves of the outdoor unit to
start the ow of the refrigerant between the
indoor and outdoor unit.
CAUTION
Check to make sure there is no refrigerant leak
after completing the installation work. If there is
a refrigerant leak, ventilate the area immediately
and evacuate the system (refer to the Air
Evacuation section of this manual).
NOTE:
After connecting the piping, please wrap
the connecting pipe head with the insulation pipe
in the accessory package.
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