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CONTROL BOX COMPONENTS
Contactor: A definite purpose contactor
connecting the compressor to the power supply.
AutoSentryÔ Control Board
The control board receives input signals from
several sensors and translates them to control the
electrical power supply to the various loads.
The sensors include:
·
Electric eyes to check the ice level in the bin.
·
Conductivity probe to determine if there is water
in the reservoir.
·
Current meter to measure the amp draw of the
auger drive motor.
The loads include:
·
Compressor contactor
·
Auger drive motor
The control board also includes several indicator
lights.
Potential Relay: The compressor start relay.
On/Off (mode) Switch: Manual control for the
machine.
NME454, 654 & FME504, 804
January 2007
Page 12
LED3
LED1
Power Light
Control Board
Auger
Relay
Compressor
Relay
Freeze Light
Bin Full
Light
Water OK Light
Service Light