Manitowoc STH042 7/15 Technician's Handbook
Also see for NEO UD0140A: Technician's handbookInstallation, operation and maintanance manualTechnician's handbookInstallation, operation and maintenance
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Contents
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10 Part Number STH042 7/15OperationTouch Pad Features . . . . . . . . . . . . . . . . . . . . . . . . . . . 47On/Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Clean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Bin Full. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Ice Making Sequence of Operation . . . . . . . . . . . 50Control Board Timers . . . . . . . . . . . . . . . . . . . . . . 52Safety Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53Energized Parts Chart. . . . . . . . . . . . . . . . . . . . . . 55Operational Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . 57Ice Thickness Check . . . . . . . . . . . . . . . . . . . . . . . 57Ice Thickness Adjustment. . . . . . . . . . . . . . . . . . 57TroubleshootingControl Board Test Mode. . . . . . . . . . . . . . . . . . . . . . 59Operating Ice Machine with Bin and Touch PadRemoved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59Diagnosing an Ice Machine that Will Not Run . 60Ice Machine Does Not Cycle Into Harvest whenWater Loses Contact with the Harvest FloatSwitch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Ice Machine Cycles Into Harvest Before WaterLoses Contact with the Harvest Float Switch. . 63Ice Production Check . . . . . . . . . . . . . . . . . . . . . . . . . 65Installation/Visual Inspection Checklist . . . . . . 67Water System Checklist . . . . . . . . . . . . . . . . . . . . . . . 68Ice Formation Pattern. . . . . . . . . . . . . . . . . . . . . . . . . 69Safety Limit Feature . . . . . . . . . . . . . . . . . . . . . . . . . . 71Analyzing Discharge Pressure . . . . . . . . . . . . . . . . 78Analyzing Suction Pressure . . . . . . . . . . . . . . . . . . 80Harvest Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84Comparing Evaporator Inlet/OutletTemperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88Discharge Line Temperature Analysis. . . . . . . . . 89Refrigeration Component Diagnostics. . . . . . . . 91Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92Final Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93Refrigeration Component Diagnostic Chart 94 |
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This manual is suitable for:
NEO UD0140ANEO UD0140AENEO UD0140WNEO UD0190ANEO UD0190AENEO UD0240ANEO UD0240AENEO UD0240WNEO UD0240WENEO UD0310ANEO UD0310AENEO UD0310WNEO UR0140ANEO UR0140AENEO UR0190ANEO UR0190AENEO UR0240ANEO UR0240AENEO UR0310ANEO UR0310AENEO UY0140ANEO UY0140AENEO UY0140WNEO UY0190ANEO UY0190AENEO UY0240ANEO UY0240AENEO UY0240WNEO UY0240WENEO UY0310ANEO UY0310AENEO UY0310WSTH042 7/15UD0140WEUD0310WEUY0140WEUY0310WE
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