icetro IC-0170A, Technician'S Handbook

Page: 150 / 166

Cycle Times, 24 Hr. Ice Production and
Refrigerant Pressure Charts
These charts are used as guidelines to verify correct ice
machine operation.
Accurate collection of data is essential to obtain the
correct diagnosis.
• Production and cycle times are for dice cube - Half dice
cube cycle times can be 1-2 minutes faster depending
on model and ambient temperature.
• Ice production checks that are within 10% of the chart
are considered normal. This is due to variances in
water and air temperature. Actual temperatures will
seldom match the chart exactly.
• Zero out manifold gauge set before obtaining pressure
readings to avoid mis-diagnosis.
• Discharge and suction pressure are highest at the
beginning of the cycle. Suction pressure will drop
throughout the cycle. Verify the pressures are within
the range indicated.
• Record beginning of freeze cycle suction pressure one
minute after the water pump energizes.
Charts
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