Scotsman Prodigy Plus D Series Service Manual - Manual (Page 23)

N0422, F0522, N0622, F0822, N0922, F1222, N1322, F1522
Air, Water or Remote Service Manual
December 2014
Page 23
Electrical Component Details
Compressor
• Operated by the compressor contactor.
Contactor
• Operated by the controller. Line voltage coil. When
energized the Compressor indicator light will be ON.
Fan Motor(s)
• Operated by the contactor
High pressure cut out
• All models have a high pressure cut out switch that
signals the controller if the discharge pressure is too
high. It is an automatic reset.
Low pressure switch
• On remote models it controls the compressor
contactor. Will close on pressure rise, pressure rises
when liquid line valve opens.
Opens at a lower pressure.
• Air and Water cooled models use a low pressure cut
out.
Liquid line valve
• Remote only. Opened by the controller to start ice
making. Closed to shut unit off. Line voltage coil.
Controller
• Senses water, ice making, discharge pressure,
low side pressure, and auger amps. Controls
compressor contactor, fan motor, and auger motor.
Indicates status and component operation.
Transformer
• 12 volt secondary, supplies power to controller only.
The Power light will be ON when the transformer
has provided 12 volts AC to the controller.
Water Level Sensor
• Two probe conductivity sensor. When water touches
it the Water Present light will be ON.
Auger Motor
• Four pole, split phase motor that operates the gear
reducer. When operating, the Auger indicator light
will be ON. The gear reducer lowers the input speed
from about 1500 RPM to 11. Auger rotation is CCW
when viewed from above.
Photo-electric eyes
• An LED emitter and photo transistor receiver set.
Pulsed infrared light is continuously emitted and
received to detect ice in the chute.
Lower light and switch panel
• Used only on Prodigy Plus D series. Duplicates
controller lights and switches.