Control Operation - Scotsman CU1526 Service Manual

CU1526, CU2026, CU3030
Service Manual

Control Operation

Standard control:
•
Electronic controller operating from a 12 AC volt power supply. Will operate within a voltage range
between 10 and 15.5.
•
Indicator lights, four visible on outside of control box: Power, Status, Water, De-scale/Sanitize.
•
Accessible On - Off switch. Switch makes or breaks power to the controller - Discontinued 2/2012.
•
Code Display: Displays letters and numbers to indicate cycles and diagnostic codes.
•
Manual Harvest switch: Use to trigger harvest at any time.
•
Clean switch: Use to initiate and finish the de-scale or sanitizing cycles.
•
Component Operation Indicator Lights: Indicate the status of certain components; water level;
ready for harvest; curtain switch position.
•
Power Light: On when power is being supplied to the controller.
•
Status Light: Green when machine is in ice making mode and is operating correctly. Blinks red
when a machine malfunction has been detected.
•
Water Light: Blinks red when reservoir does not fill within allowed time period.
•
De-scale / sanitize: Yellow when the controller has determined it is time to de-scale and sanitize
the machine. Use clean process to reset light. Time is determined by power up time and
controller's setting. Standard setting is 6 months. See adjustment process
Controller Connections:
•
J1 – Ground and Power Supply
•
J2 – High voltage power harness to loads
•
J3 – Factory use
•
J4 – Optional board connector
•
J5 - Communications port
•
J6 – Thermistor connection
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J7 – Curtain switch
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J8 – Curtain switch
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J9 – Water sensor
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J10 – Ice thickness sensor
•
J11 – Bin thermostat. Not applicable to this model..
February 2012
Page 23