LG LP-E5020CL, Service Manual

Page: 28 / 79

6.3 Piping of indoor unit
1) Preparation of pipings
¤
Cut the pipes and the cable
• Use the accessory piping kit or the pipes
purchased locally.
• Measure the distance between the indoor and the
outdoor unit.
• cut the pipes a little longer than measured
distance.
• Cut the cable 1.5m longer than the pipe length.
¤Ł
Remove burrs.
• Remove burrs from cut edges of pipes.
• Turn the pipe end down to avoid the metal powder
entering the pipe.
Caution:
If burrs are not removed, they may cause gas
leakage.
¤Ø
Flaring the pipes.
• Insert the flare nuts, mounted on the connection
ports of both indoor and outdoor unit, onto the
copper pipes. Some refrigerant gas may leak,
when the flare nuts are removed from the indoor
unit, as some gas is charged to prevent the inside
of the pipe from rusting.
• Fit the copper pipe end into the Bar of flare tool
about 0~0.5mm higher. (See illustaration)
• Flare the pipe ends.
¤Œ
Tape the flaring part to protect it from dust or
damages.
– 28 –
4 3 2 1
= Improper flaring =
Inclined Cracked Surface
damaged Uneven
thickness
Bar
0~0.5mm
Copper
pipe
Clamp handle
Bar
Handle
Yoke
Cone
Red arrow mark
Pipe
Point down
Reamer
90
°
Pipe cutter
Slanted Rough