Freeze Cycle; Harvest Cycle; Dump Cycle; Fan Control - Cornelius Xtreme ICE Series Owner's/Operator's Manual

FREEZE CYCLE

1. Ten seconds after the fill valve turns off, the microprocessor records the water level.
2. Using the recorded high water level, the calibration level and the ice thickness level, the microprocessor
calculates a harvest level.
3. The microprocessor monitors the water level until it reaches the harvest level.
As ice builds on the evaporator the water level in the water pan drops. This is called batch harvesting.

HARVEST CYCLE

1. The hot gas solenoid opens.
2. The microprocessor monitors the proximity switches waiting for the circuit to open.
3. Once all of the proximity switch circuits have opened, the hot gas solenoid closes.
4. The microprocessor monitors the proximity switches to close.
5. Once all the proximity switch circuits close, the harvest cycle terminates.
NOTE: When the pressure inside, the pressure sensor pick up lowers to a predetermined value, the
pressure transducer starts the harvest cycle.

DUMP CYCLE

1. The dump cycle can be changed by moving the setting on the dump cycle dip switches.
2. If both switches are off, the machine dumps water after each cycle. This is the factory set point.
3. If switch 1 is on an switch 2 is off, the machine dumps after every third harvest.
4. If switch 1 is off an switch 2 is on, the machine dumps after every seventh harvest.
5. Once the water reaches the minimum level, the dump valve de–energizes and the pump turns off.

FAN CONTROL

1. Fan control operates when the hot gas solenoid is closed.
2. The fan turns off when the condenser temperature is below 88_F.
3. The fan turns on when the condenser temperature is above 100_F.

ADJUSTING BRIDGE THICKNESS

For optimum ice production and maximum cube separation, the ice connecting the individual cubes should be a
minimum of 1/8I (.32cm) thick.
FIG. 7
BRIDGE 1/8I (0.32 cm)
Should a different thickness of the bridge be desired, it will be required to adjust the ice thickness "POT", lo-
cated on the circuit board, as follows:
1. Thinner Bridge – turn the ice thickness "pot" adjustment screw C.W. one full turn. Allow two cycles before
determining if additional adjustments are required.
2. Thicker Bridge – turn the ice thickness "pot" adjusting screw C.C.W. one full turn. Allow two cycles before
determining if additional adjustments are required.
NOTE: Never judge the thickness of the ice from the first batch of the ice produced – the first cycle is
a balance cycle. Always wait for the second cycle before making any adjustments.

TOTAL ICE CAPACITY

Ice capacity of any ice maker is affected by many operating conditions, such as water and air temperature and
location factors. Please review the capacity tables in this manual for average 24-hour capacity under various
conditions.
All printed capacity ratings are  10% except 50 HZ units. These products have 12% increase
NOTE:
in cycle time and capacity decrease of approximately 17%.
December 22, 2005
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