0907S005V0
Chapter 5 Circuit diagram
5-1. Brief principle diagram
Brief Description of Control Principle
HRF12 is the forced air cooling refrigerator with two doors. A mechanical type of all the control is
generally adopted. The thermostat directly controls the start and stop of compressor, and hence the
refrigerator temperature.
Low Temperature Compensation in the above schematic diagram, When the ambient is below the set
temperature, the switch will be closed and the heating will work, thus ensuring the normal start, and
operation of refrigerator at lower ambient temperature, in such case, the freezer compartment temperature
can reach a good point.
A =plug B=switch C=lamp D=ice maker (preparative) E=valve (preparative)
F=thermostat G=defrost timer H =thermostat I=defrost heater J= fuse
K=fan motor L=fan motor M=overload protector N=compressor O= (PTC)
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