Stepper Motor; Compressor Ptc (Positive Temperature Coefficient) - LG LMX21981 Series Training Manual

LMX21981xx

STEPPER MOTOR

COMPRESSOR PTC (Positive Temperature Coefficient)

LMX21981xx
Blue to Black – Pulsing mV
while operating (400 Ω)
Yellow to Red – Pulsing mV
while operating (400 Ω)
120 V loads switching relays
AC
The PTC (Positive Temperature
Coefficient) is a non-contact ceramic
semiconductor that uses BaTiO
resistance increases as the temperature
increases. This part is attached to the
compressor case and used to start the
compressor and to prevent starting when
conditions require. The compressor is a
single-phase induction motor.
The PTC allows current to energize both
the start and main windings to start the
motor.
Page 54
REFRIGERATOR
@ 75Hz
DC
@ 75Hz
DC
. The
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TRAINING MANUAL