39
1
2
Earth Wire
longer than
others
AC wires
for safety
reason
Terminal
Board
Holder
Indoor and outdoor
cable connection
Indoor Unit
WARNING
This equipment must be properly earthed.
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.
1. To cut
2. To remove burrs
3. To fl are
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.
Improper fl aring
Inclined Surface
damaged
Cracked Uneven
thickness
Bar
Red arrow mark
Handle
Core
Yoke
Clamp
handle
Bar
0 – 0.5 mm
Copper
pipe
Reamer
Point down
Pipe
