Harvest Button; Manual Harvest; Unit Check; Clean Cycle - Cornelius XAC 1444 Service Training Manual

HARVEST BUTTON

The Harvest Button is located on the control board (See Figure 5 in the Cleaning Procedures chapter.

Manual Harvest

1. At any time after secondary start up, the machine can be put into the harvest cycle by depressing
the harvest button.
2. Pressing the harvest button will tell the microprocessor to skip directly to the harvest cycle.
3. Once the harvest cycle completes, the machine continues with normal operations.

Unit Check

1. Like manual harvest, any time after secondary start up the microprocessor monitors the harvest but-
ton.
2. If the harvest button is depressed and held for 5 seconds, the unit goes into a diagnostics mode.
3. All outputs are initially turned off.
4. Then the microprocessor powers each output individually for one second.
5. This continues from 10 minutes or until the power is cycled.

CLEAN CYCLE

1. The clean cycle can only be initiated during the 45 second hot gas cycle in Secondary Start Up.
2. The clean cycle starts when the CLEAN button is pressed twice (See Figure 12).
FIGURE 12
3. The hot gas valve opens.
4. The microprocessor monitors the proximity switch circuits, waiting for all circuits to open.
5. Once all circuits have opened, the hot gas valve closes.
6. If all of the proximity switch circuits do not open in 4 minutes, the hot gas valve closes.
7. The fill valve opens.
8. Once the water level reaches the maximum water level, the fill valve closes.
9. The water pump turns on.
10. After 10 minutes the dump valve opens.
11. Once the water reaches the minimum level, the water pump turns off and the dump valve closes.
12. The fill valve opens.
13. Once the water reaches the maximum water level, the fill valve closes.
14. The water pump turns on, and the dump valve opens.
15. Once the water reaches the minimum water level, the water pump turns off and the dump valve
closes.
16. The fill valve opens.
17. Once the water reaches the maximum water level, the fill valve closes.
18. The water pump turns on, and the dump valve opens.
19. Once the water reaches the minimum water level, the water pump turns off and the dump valve
closes.
20. All outputs turn off.
21. The ERROR LED flashes 8 times at 4 second intervals.
22. The machine will not run until the power is cycled off and back on.
TP00952
Clean Button
20
Xtreme Ice Training Manual
October 17, 2005