LG HPCI-C35E, Service Manual

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(1) Preparation of pipings
1. Cut the pipes and the cable.
• Use the accessory piping kit or the pipes pur-
chased locally.
• Measure the distance between the indoor and
the outdoor unit.
• Cut the pipes a little longer than the measured
distance.
• Cut the cable 1.5m longer than the length of the
pipe.
2. Remove burrs.
• Remove burrs from cut edges of pipes.
• Turn the pipe end toward down to avoid the
metal powder entering the pipe.
3. 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 0.5~1.0mm higher. (See illustration)
• Flare the pipe ends.
4. Tape the flaring portion to protect it from the
dust or damages.
Copper
tube
90
°
Slanted Uneven Rough
Pipe
Reamer
Point down
Bar
Copper pipe
Clamp handle
Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Inclined
Inside is shining without scratches
Smooth all round
Even length
all round
Surface
damaged
Cracked Uneven
thickness
= Improper flaring =
2. Piping and Drainage of Indoor Unit
Outside diameter A
mm inch mm
ø6.35 1/4 0.5~0.8
ø9.52 3/8 0.5~0.8
ø12.7 1/2 0.5~0.8
ø15.88 5/8 0.8~1.0
• If burrs are not removed, they may cause a gas leak-
age.
CAUTION