LG HMC030KD1 Service Manual - Page 45

Balance, refrigerant, valve, Procedure

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2) Balance refrigerant of the 3-way valve (Gas leakage) Indoor unit c ) ( --russ% -11117, Liquid side -7\ 3-Way valve Open ''t Outdoor unit ( -1-1-E% Gas side -.) 1_722F .1 3-Way valve 1 Open 00 } L OPEN CLOSE 1 • Procedure (1) Confirm that both the liquid side and gas side valves are set to the back seat. (2) Connect the charge set to the 3-way valve's port. - Leave the valve on the charge set closed. Connect the charge hose to the service port. (3) Open the valve (Lo side) on the charge set and discharge the refrigerant until the gauge indicates 0 kg/cm2G. - If there is no air in the refrigerant cycle (the pressure when the air conditioner is not running is higher than 1 kg/cm2G), discharge the refrigerant until the gauge indicates 0.5 to 1 kg/cm2G. if this is the case, it will not be necessary to apply a evacuatin. Discharge the refrigerant gradually; if it is discharged too suddenly, the refrigeration oil will also be discharged. - 45 -

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2)
Balance
refrigerant
of
the
3
-way
valve
(Gas
leakage)
--russ%
Liquid
side
Indoor
unit
3
-Way
c
-
11117,
-7\
)
(
valve
Open
(
.1
—
1-1-E
%
Gas
side
-.)
1_722F
00
3
-Way
valve
OPEN
CLOSE
1
Open
Outdoor
unit
}
L
''t
1
•
Procedure
(1)
Confirm
that
both
the
liquid
side
and
gas
side
valves
are
set
to
the
back
seat.
(2)
Connect
the
charge
set
to
the
3
-way
valve's
port.
—
Leave
the
valve
on
the
charge
set
closed.
Connect
the
charge
hose
to
the
service
port.
-
45
-
(3)
Open
the
valve
(Lo
side)
on
the
charge
set
and
discharge
the
refrigerant
until
the
gauge
indi-
cates
0
kg/cm
2
G.
—
If
there
is
no
air
in
the
refrigerant
cycle
(the
pressure
when
the
air
conditioner
is
not
running
is
higher
than
1
kg/cm
2
G),
discharge
the
refrig-
erant
until
the
gauge
indicates
0.5
to
1
kg/cm
2
G.
if
this
is
the
case,
it
will
not
be
neces-
sary
to
apply
a
evacuatin.
Discharge
the
refrigerant
gradually;
if
it
is
dis-
charged
too
suddenly,
the
refrigeration
oil
will
also
be
discharged.