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4-3 OLP (OVER LOAD PROTECTOR)
4-3-1 Definition of OLP
(1) OLP (OVER LOAD PROTECTOR) is attached to
Hermetic Compressor and protects Motor by cutting off
current in Compressor Motor by Bimetal in the OLP in
case of over-rising temperature.
(2) When over-voltage flows to Compressor motor, Bimetal
works by heating the heater inside OLP,
and OLP protects Motor by cutting off current which
flows to Compressor Motor.
4-3-2 Role of OLP
(1) OLP is attached to Hermetic Compressor used to
Refrigerator and Show Case and prevents Motor Coil
from being started in the Compressor.
(2) Do not turn the Adjust Screw of OLP in any way for
normal operation of OLP.
(Composition and connection Diagram of OLP)
5. CIRCUIT DIAGRAM
CONTACTING
POINT
COVER
BIMETAL
CONTACTING
POINT
HEATER
TERMINALS
ADJUST
SCREW
HEATER
BIMETAL
Figure 21
NOTE : 1. This is a basic diagram and specifications vary in different localities.