LG GR-051CN user manual download

Languages: English
Pages:10
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Page 1 of 10
SAFETY
PRECAUTIONS
Please
read
the
following
before
servicing
your
refrigerator.
1. Check
if electric
leakage
occurs
in the
set.
2. When
servicing
current
applying
parts,
unplug
prior
to
servicing.
3. If testing
with
power
on,
wear
rubber
gloves
to prevent
electric
shock.
4. Be sure
to
check
regular
current,
voltage,
and
capacity.
5. Don't
touch
metal
products
in a cold
freezer
compartment
with
wet
hands.
It may
cause
frostbite
or
other
injury.
6. Prevent water flowing
to electric elements
in mechanical
parts.
7. When tilting the set, remove any materials
on the set,
especially
thin plate type (ex,: glass plates or books.)
8. When servicing
evaporator
part, wear cotton gloves to
prevent injury by sharp fins of the evaporator.
9. Do not open the sealed refrigeration
system.
It could
cause injury or pollute the
air.
Leave this job to an
autherized
servicer
with the appropriate
refrigerant
recovery equipment.
SERVICING
PRECAUTIONS
AIR RECHARGING
IN COMPRESSOR
Test the refrigeration
system by connecting
it electrically
before begee beginning
refilling operation.
This is
necessary
to ascertain
the function
of the motor-
compressor
and identify defects immediately.
If defects
have been found, empty the old system of R134a residue
by breaking off the end of the extension
piece at its narrow
point. (Figure
1)
Use the appropriate
refrigerant
recovery
equipment.
Replace the filter and any damaged
components.
Unsolder
and pull off the piece remaining
inside the service tube and
then attach an extension
with male Hansen, and last,
solder it to the same tube again. (Figure 2)
It is necessary
to execute
the soldering
operation
with
valve open so that the fumes caused
by oil residue can
come out freely without blowholes
between
two tubes
during heating the point to be soldered.
The extension fitted with the male Hansen is connected
to
the female fitting of the vacuum
pump tube. (Figure 3)
Air evacuating
from the system
begins as soon as the
pump starts. The refrigeration
system must be kept under
vacuum
until the reading on the low-pressure
gauge
indicates
vacuum
(0 absolute,
-1 atm.
-760 mm Hg.)
In
any
case, it is advisable
to keep the pump running for
about 60 minutes. (Figure 4)
POINT TO BE
CHARGE
TUBE
FEMALE
BROKEN
EXTENSION
HANSEN
MALE
HANSEN
SERVICE
TUBE
SOLDERING
EXTENSION
POINT
Figure 1
Figure 2
PRESSURE
GAUGE
Figure 3
Figure 4
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