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Section 3 - Service and Repair
TEMPERATURE CONTROL
SPECIFICATIONS
Double Throw Ice Maker Thermostat
Numbers 4548, AR-19-12, 2636, 2690, 2691,
2717, 2783, 2782, 2781, 2780
These temperature controls are double throw, single pole
controls. The sensing tube is inserted into the ice maker mold
and senses mold temperature. After ice is sensed in the mold,
the 2-3 contacts open (stopping the compressor) and the 2-1
contacts are closed (starting the ice maker motor). The 2-3
contacts close (2-1 contacts open) before the end of the ice
harvest cycle.The hold switch prevents power going back to
the compressor. This prepares the control for the next cycle
.
Figure 11. Temperature Controls - Manual Defrost Ice Makers
YELLOW WIRE
CONNECTION
RED WIRE
CONNECTION
BLUE/BLACK WIRE
CONNECTION
ICE MAKER CONTROL
2
1
3
183-8
22
1
3
1
3
FREEZE POSITION ICE HARVEST POSITION
CYCLE
CLOSED
CIRCUIT
OPEN
CIRCUIT
FREEZE 2 - 1 2 - 3
HARVEST 2 - 3 2 - 1
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