Section 6 | Electrical System |
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2.REFRIGERATION SYSTEM START-UP
The compressor starts after the 45- second water purge, and it remains on throughout the Freeze and Harvest cycles.
The water fill valve is energized at the same time as the compressor.
The harvest valve(s) remains on for the first 5 seconds of the initial compressor
At the same time the compressor starts, the condenser fan motor (air- cooled models) is supplied with power throughout the entire freeze and harvest sequences.
The fan motor is wired through a fan cycle pressure control, and may cycle on and off. (The compressor and the condenser fan motor are wired through the contactor. Any time the contactor coil is energized, the compressor and fan motor are supplied with power.)
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) |
| (76) | |
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| (7) |
| (81) |
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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 |
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| Contactor Coil |
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| (25) |
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| Air Compressor |
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Ice Thickness |
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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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| Run Capacitor | |
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Contactor | Overload |
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Contacts (Black) |
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L1 |
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(51) | (85) | (86) |
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| 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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| 2. Refrigeration System Start Up (5 Seconds) |
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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 | ON |
#6 | Water Dump Valve | OFF |
#7 | Contactor Coil | Closed / ON |
#7A | Compressor | ON |
#7B | Condenser Fan Motor | OFF |
Safety Controls (Which could stop ice machine operation) |
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| High Pressure | Closed |
| Main Fuse (On Control Board) | Closed |
Part Number |
