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Section 6 | Electrical System |
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6. HARVEST
The harvest valve(s) remains open and the refrigerant gas warms the evaporator. This causes the cubes to slide, as a sheet, off the evaporator and into the storage bin.
The sliding sheet of cubes swings the water curtain out, opening the bin switch. This momentary opening and closing of the bin switch terminates the Harvest Cycle and returns the ice machine to the Freeze Cycle (steps
The air compressor (when used) remains energized throughout the entire harvest cycle. The air compressor will automatically energize after 60 seconds when the harvest cycle time exceeded 75 seconds in the previous cycle.
L1 |
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| L2 or N |
Ground |
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| Water Valve | (99) | |
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| (20) | (21) | |
| (89) | (55) |
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| (61) | (22) |
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| High |
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| Control Board |
| Harvest Valve |
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| Pressure |
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| (2) |
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(88) | Cutout | (60) | (77) |
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(6) |
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| (80) |
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| Dump Valve | (75) |
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| (1) |
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| (7) |
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| (4) | (57) | Water Pump |
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| (98) |
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| (42) | Trans. |
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Fuse (7a) | (58) | Terminates at |
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| Pin Connection |
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| (59) |
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| L2 |
| Contactor Coil |
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| (25) |
| (56) |
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| (26) | Air Compressor |
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Ice Thickness |
| (9) |
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Probe |
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Water Level Probe |
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| Bin Switch | |
| Low DC |
| (6) |
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| Voltage |
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| Clean |
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| Plug |
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| OFF | ||
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| (2) | ICE |
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| Compressor |
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Contactor | Overload | (Yellow) | (46) | Run Capacitor | |
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Contacts |
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(Black) |
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L1 |
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(51) | (85) | (86) |
| PTCR | |
| Fan Motor | ||||
| Fan Cycle |
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| Control |
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| Run Capacitor | |
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Table |
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| 6. Harvest (Until Bin Switch Activation) |
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Toggle Switch |
| ICE | |
Bin Switch |
| Closed | |
Control Board Relays |
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#1 | Water Pump |
| OFF |
#2 | Harvest Valve (Left) |
| ON |
#3 | Harvest Valve (Right) |
| ON (When Used) |
#4 | Air Compressor |
| ON (When Used) |
#5 | Water Inlet Valve |
| OFF |
#6 | Water Dump Valve |
| OFF |
#7 | Contactor Coil |
| Closed / ON |
#7A | Compressor |
| ON |
#7B | Condenser Fan Motor |
| OFF; May Cycle ON |
Safety Controls (Which could stop ice machine operation) |
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| High Pressure |
| Closed |
| Main Fuse (On Control Board) |
| Closed |
Part Number |