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Earth wire shall be Yellow/Green (Y/G) in colour and longer than other AC wires for safety reason.
11.3.6
Piping Insulation
1
Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit Installation
Diagram. Please wrap the insulated piping end to prevent water from going inside the piping.
2
If drain hose or connecting piping is in the room (where dew may form), please increase the insulation by
using POLY-E FOAM with thickness 6 mm or above.
11.3.6.1
Cutting and Flaring the Piping
1
Please cut using pipe cutter and then remove the burrs.
2
Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end
down to avoid the metal powder entering the pipe.
3
Please make flare after inserting the flare nut onto the copper pipes.
Pipe
Point down
1. To cut
2. To remove burrs
Indoor and outdoor
cable connection
This equipment must be properly earthed.
Handle
Reamer
Bar
Clamp
handle
Red arrow mark
3. To fl are
Terminal
Board
1
2
Earth Wire
longer than
others
AC wires
for safety
reason
Holder
Indoor Unit
WARNING
0 – 0.5 mm
Bar
Yoke
Core
Copper
pipe
39
Improper fl aring
Inclined Surface
Cracked Uneven
damaged
thickness
When properly fl ared, the internal surface of the
fl are will evenly shine and be of even thickness.
Since the fl are part comes into contact with the
connections, carefully check the fl are fi nish.
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