11
CIRCUIT DIAGRAM
Schematic Circuit Diagram
A- PLUG
B- SWITCH
C- LAMP
D- ICE MAKER (PREPARATIVE)
E- VALVE (PREPARATIVE)
F- THERMOSTAT
G- DEFROST
H- THERMOSTAT
I- DEFROST TIMER
J- FUSE
K- FAN
L- FAN
M- OVERLOAD PROTECTOR
N- COMPRESSOR
O- PTC
Brief description of control the principle.
HRF12 is the forced air-cooling refrigerator with two doors. A mechanical type of all the
controls is generally adopted. The thermostat directly controls the starting and stopping of
compressor, and hence the refrigerator’s temperature.
With the low temperature compensation in the above schematic diagram, when the ambient
temperature is below the set temperature, the switch will be closed and the heating will work,
thus ensuring the normal start, and operation of the refrigerator at a lower ambient
temperature. In such cases, the freezer compartment’s temperature can reach a good point.
