Part Number STH098 06/19 157
Cycle Times, 24 Hr. Ice Production and
Refrigerant Temperature Charts
These charts are used as guidelines to verify correct ice
machine operation.
• Accurate collection of data is essential to obtain the
correct diagnosis. Eliminate all non refrigeration
problems before diagnosing the refrigeration system.
• Perform a visual inspection for clearances, drains, dirty
condenser/filter and water filter replacement.
• Verify water flow is even across the entire evaporator.
• Verify ice fill pattern - Mineral build-up on the
evaporator assembly will cause water tracking and
an erratic ice fill pattern. Descale with Manitowoc
Ice Machine cleaner/descaler to remove any mineral
buildup.
• Check ice thickness bridge - Bridge should be 3 mm.
• 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.
• Refer to “Refrigeration diagnostics” for the list of data
that must be collected for refrigeration diagnostics.
Charts
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