LG LRTN09314SW, Руководство по обслуживанию

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14
5. Adjustments
1- COMPRESSOR
1-1 Function
The compressor sucks low pressure
evaporated gas from the evaporator
and compresses it into high
temperature/high pressure gas and
sends it to the condensor.
1-2 Composition
The compressor includes the
compressing system, a motor, and an
enclosure. The PTC (thermistor) and
OLP (Overload Protection Device) are
attached to its exterior. Handle and
repair the compressor with care. It
includes parts manufactured to 1
micron tolerance, and is hermetically
sealed to exclude dust or humidity
after fabrication. Dust, humidity, or
flux getting into the refrigeration cycle
could clog it or otherwise affect the
cooling.
1-3 Use notes.
(1) Protect your refrigerator from over
currents or overloads.
(2) Do not bump or jar the
compressor. If it is bumped or
forced (dropping or careless
handling,) it could damage the
compressor or cause noise or
undesirable operation.
(3) Use only exact replacement parts
when repairing the compressor. If
the terminals become corroded, it
could affect operation. If the
replacement parts are of incorrect
values, operation and safety will
be compromised.
2- PTC
2-1 PTC Composition
(1) The PTC (Thermistor) is a
semiconductive starting
component that is made with
BaTiO .
3
(2) The higher the temperature, the
higher the resistance value will be.
This characteristic is used for
starting the motor.
2-2 PTC Function
(1) The PTC is attached to the
hermetic compressor and its used
for its starting.
This household refrigerator uses a
single induction motor. During
normal operation, the motor starts
with current flowing through both
the main and the auxiliary
windings. After the motor starts,
current to the auxiliary winding is
cut off.
2-3 PTC- Electric Diagram
According to motor starting method.