SC200 Installation& Operation Manual
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8
Controls and Adjustments
On-Off Switch:
Used to turn the ice machine on or off.
CAUTION:
Switching the machine “off” does not de-energize all circuits. Always disconnect
power before servicing.
Ice-Clean Switch:
The “Ice” position signals the controller to provide full operation of the ice
machine. The “Clean” position will exclude operation of the compressor and condenser fan
motor (air cooled models) and provide operation required for the cleaning procedure.
Defrost Button:
Push this button anytime lowering the water plate and/or forcing the ice
machine into the defrost mode is desired. The water plate will remain down for four minutes and
then return to normal operation. Pushing the button again, while the plate is down, will
immediately return the machine to normal operation.
Float Switch:
Closes water inlet valve when water sump is full
Evaporator Probe:
Provides evaporator temperature information to the control board to begin
and end the defrost cycle. Adjust the left potentiometer on the control board to determine ice
cube fullness. Turn CW to extend the freeze time and CCW to shorten it.
NOTE: Ice cubes should never be frozen completely full. A small dimple in each cube
indicates a proper adjustment. Making cubes without a dimple will reduce ice machine
capacity and may cause damage to the water plate and operating mechanism.
Bin Probe:
This probe will sense contact with the ice, when the bin is full and turn off the ice
machine. When ice is used and is no longer in contact the probe, it will signal the control to turn
on the ice machine. When the ice machine is off due to a full bin, the code 90 indicator will be lit
on the control board.Contact with ice should turn off the ice machine within one minute.
If adjustment is required, hold ice against the probe. Turn the right side potentiometer on the
control board CCW to shut off the machine within one minute. CW adjustment is required if the
ice machine shutsdown, as if the bin is full, when ice has not contacted the probe.
Plate-Up Switch:
This switch limits the upward travel of the water plate. It opens to de-energize
the actuator motor, by way of an operator,when its shaft is in the full up (closed) position.
This switch also provides a way for the controller to determine that the plate is blocked. When the
plate is closing, the controller provides a time limit for this switch to open. If the time limit is
exceeded, the controller will reopen the water plate to clear it. This will repeat until the surface is
clear.
Plate-Down Switch:
This switch limits the downward travel of the water plate. It opens to de-
energize the actuator motor, by way of an operator,when its shaft is in the full down (open)
position.
