Manitowoc NEO UD0140A, Technician'S Handbook

Page: 71 / 260

Part Number 000014797 Rev02 05/18 71
CONTROL BOARD TIMERS
• The ice machine is locked into the freeze cycle for 6
minutes before a harvest cycle can be initiated.
• The freeze time lock in feature is bypassed on the
initial cycle (manual start or after a full bin/safety limit
condition).
• If the harvest float switch is in the down position for
10 continuous seconds during the start of a freeze
cycle, a harvest sequence is initiated.
• The maximum freeze time is 45 minutes at which time
the control board automatically initiates a harvest
sequence.
• The maximum harvest time is a total of 7 minutes.
If the bin switch does not activate within 3.5 minutes,
the harvest cycle extends another 3.5 minutes. If 7
minutes is exceeded a Harvest Assist Cycle starts.
• The water fill valve is de-energized 1 minute after the
freeze cycle starts. The control board will energize the
water inlet valve one more times 3 minutes into the
freeze cycle.
Control boards with thermistor and firmware version
before 2.70
The water trough thermistor performs the following
function in the freeze cycle:
• When the temperature of the water reaches 34° F the
water pump de-energizes for 25 seconds,
then re energizes.
• When the water pump restarts the water inlet
solenoid energizes for 7 seconds.