122 Part Number 80-1505-3 6/11
Safety Timers
The control board has the following non-adjustable safety
timers:
• The ice machine is locked into the freeze cycle for 6
minutes before a harvest cycle can be initiated.
• The maximum freeze time is 60 minutes at which time
the control board automatically initiates a harvest
sequence (steps 5 & 6).
• The maximum harvest time is 3.5 minutes at which time
the control board automatically ends the harvest cycle.
When the bin switch is closed a freeze sequence initiates
(steps 3 & 4). When the bin switch is open an automatic
shutoff sequence initiates.
• The maximum water fill is 6 minutes.
Water Assist Harvest Feature
Twin & Quad Evaporators Only:
Typical duration of a Harvest sequence is less than 2.5
minutes. When the Harvest sequence time reaches 4
minutes, the following occurs:
4 minutes into a Harvest sequence: The water fill valve will
energize to fill the trough with water.
5 minutes into a Harvest sequence: The water pump will
energize and flow water over the evaporators.
The water fill valve and water pump remain on until all bin
switches have been activated, or until the 7-minute Harvest
sequence time limit is reached.
Warm Water Rinse Cycle
Single & Twin Evaporators Only:
Closing the back of the evaporator allows ice to build up on
the rear of the evaporator and the plastic evaporator frame
parts. After 200 freeze/harvest cycles have been complete
the control board will initiate a warm water rinse.
After the 200th harvest cycle ends:
• The Clean and Harvest LED’s energize to indicate the ice
machine is in a warm water rinse.
• The compressor and harvest valve remain energized.
• The water pump energizes.
• The water inlet valve energizes until water contacts the
water level probe.
• The compressor and harvest valve warm the water for 5
minutes, then de-energize.
• The water pump remains energized for an additional 5
minutes (10 minute total on time) then de-energizes.
The warm water rinse cycle can be terminated by moving the
toggle switch to the OFF position, then back to ICE.
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