LG HMC036KDT1 Service Manual - Page 44

Piping, Drainage, indoor

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Installation (2) Piping and Drainage of indoor Unit 1) Preparation of pipings 1. Cut the pipes and the cable. • Use the accessory piping kit ❑r the pipes purchased 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. Pipe cutter 90° X Slanted Rough 0 Pipe Reamer 0 Caution: If burrs are not removed, they may cause a gas leakage. Point down 3. Flaring the pipes. • Insert the flare nuts, mounted on the connection ports of both indoor and outdoor unit, onto the copper pipes. Some refrgerant 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 illustration) • Flare the pipe ends. 4. Tape the flaring portion to protect it from the dust or damages. "A"; o12.7 mm (1/2") 0-0.5 mm o9.52 mm (3/8") > 0-0.5 mm e6.35 mm (1/4") )- 0-0.5 mm Bar Bar Copper pipe Clamp handle Handle Yoke Cone 0 0 Red arrow mark Inclined = Improper flaring = r( Surface damaged Cracked Uneven thickness When properly flared, the internal surface flare will evenly shine and be of even thickness. Since the flare part comes into contact with the connectors, carefully check the flare finish. 44 MPS Multi Air Conditioner

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Installation
(2)
Piping
and
Drainage
of
indoor
Unit
1)
Preparation
of
pipings
1.
Cut
the
pipes
and
the
cable.
•
Use
the
accessory
piping
kit
❑r
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.
Caution:
If
burrs
are
not
removed,
they
may
cause
a
gas
leakage.
3.
Flaring
the
pipes.
•
Insert
the
flare
nuts,
mounted
on
the
connection
ports
of
both
indoor
and
outdoor
unit,
onto
the
copper
pipes.
Some
ref
rgerant
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
illustration)
•
Flare
the
pipe
ends.
4.
Tape
the
flaring
portion
to
protect
it
from
the
dust
or
damages.
Pipe
cutter
X
90°
Slanted
Rough
0
0
Point
down
Pipe
Reamer
"A";
o12.7
mm
(1/2")
0-0.5
mm
o9.52
mm
(3/8")
>
0-0.5
mm
e6.35
mm
(1/4")
)-
0-0.5
mm
Bar
Bar
Copper
pipe
Clamp
handle
Handle
Yoke
Cone
0
0
Red
arrow
mark
=
Improper
flaring
=
r(
Inclined
Surface
Cracked
Uneven
damaged
thickness
When
properly
flared,
the
evenly
shine
and
be
of
even
Since
the
flare
part
comes
in
tors,
carefully
check
the
flare
internal
surface
flare
will
thickness.
to
contact
with
the
connec-
finish.
44
MPS
Multi
Air
Conditioner