
630460146
8
October 27, 2003
OPERATION
UNIT SELECTION
1. The unit selection dip switches tell the microprocessor the correct water level difference for harvest and the
number of proximity switch circuits to monitor.
2. The unit selection dip switches are a series of 3 switches that can be placed in either the ON or OFF posi-
tion.
3. The following list shows the dip switch settings for each model:
NOTE: The unit selection switches are preset at the factory to the correct model. Use the chart below if
the control is replaced.
Model Switch 1 Switch 2 Switch 3 Proximity Switch Circuits
500 ON OFF OFF 1
300 OFF OFF OFF 1
600/800/1000 OFF ON OFF 1
1200 ON ON OFF 2
1400/1800 OFF OFF ON 2
NORMAL OPERATIONS
1. Start up sequence.
2. Secondary start up.
3. Dump cycle.
4. Water fill cycle.
5. Pre chill cycle.
6. Freeze cycle.
7. Harvest cycle.
8. Continue with the dump cycle.
9. Fan cycle runs continuously after the secondary start up (88–100_F).
10. The safety features are monitored during the proper cycle.
DEFROST LEVEL (B)
DUMP LEVEL (C)
PRESSURE
LINE
PRESSURE TRANSDUCER
1. During fill, water level rises to (A).
2. During Ice Product cycle, water level lowers
to (B). Defrost cycle initiated.
3. During Defrost cycle, water level lowers to (C).
4. When Proximity Switch(es) close, fill valve
opens and water level rises to (A).
START LEVEL (A)
WATER PAN
FIG. 6
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