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Multi Split Type Air Conditioner / User Manual
Indoor unit tubing Flare nut Pipe
Indoor unit tubing
Flare nut Pipe
3. Tighten the flare nut as tightly as possible by
hand.
4. Using a spanner, grip the nut on the unit tubing.
5. While firmly gripping the nut, use a torque
wrench to tighten the flare nut according to the
torque values in above table.
C
Use both a spanner and a torque
wrench when connecting or
disconnecting pipes to/from the
unit.
A
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.
C
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”)
Bend the pipe with thumb
min-radius 10cm (3.9”)
6. After connecting the copper pipes to the indoor
unit, wrap the power cable, signal cable and the
piping together with binding tape.
C
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 flow of the refrigerant between the indoor
and outdoor unit.
A
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).
5 Installation