Manitowoc
Manitowoc Manitowoc
Cleaning the Condenser . . . . . . . . . . . . . 43Air-cooled Condenser . . . . . . . . . . . . . 44Water-cooled Condenser and Water Regulating Valve . . . . . . . . . . . 44QM45/Q130/Q170/Q210/Q270 . . . . . . . . . 45Interior Cleaning and Sanitizing . . . . . 45QM20/QM30 . . . . . . . . . . . . . . . . . . . . . . . 60Cleaning and Sanitizing Procedure . . 60SM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67Cleaning Procedure . . . . . . . . . . . . . . 67Sanitizing Procedure . . . . . . . . . . . . . 68Removal of Parts for Cleaning andSanitizing . . . . . . . . . . . . . . . . . . . . . . 69Removal from Service/Winterization . . . 77General . . . . . . . . . . . . . . . . . . . . . . . . 77Air-cooled Ice Machines . . . . . . . . . . . 77Water-cooled Ice Machines . . . . . . . . 78OPERATIONQM45/Q130/Q170/Q210/Q270 . . . . . . . . . 79Initial Start-up or Start-up After Automatic Shut-off . . . . . . . . . . . . . . . 79Freeze Sequence . . . . . . . . . . . . . . . . 79Harvest Sequence . . . . . . . . . . . . . . . 80Automatic Shut-off . . . . . . . . . . . . . . . 80Energized Parts Chart . . . . . . . . . . . . 81QM20/QM30 . . . . . . . . . . . . . . . . . . . . . . . 83Initial Start-up or Start-up After Automatic Shut-off . . . . . . . . . . . . . . . 83Freeze Sequence . . . . . . . . . . . . . . . . 83Harvest Sequence . . . . . . . . . . . . . . . 84Automatic Shut-off . . . . . . . . . . . . . . . 84Energized Parts Chart . . . . . . . . . . . . 85SM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86Initial Start-up or Start-up After Automatic Shut-off . . . . . . . . . . . . . . . 86Energized Parts Chart . . . . . . . . . . . . 88Operational Checks . . . . . . . . . . . . . . . . . 89QM45/Q130/Q170/Q210/Q270 . . . . . 89QM20/QM30 . . . . . . . . . . . . . . . . . . . . 92SM50 . . . . . . . . . . . . . . . . . . . . . . . . . 956 Part Number 80-01111-9 7/10
TROUBLESHOOTINGQM45/Q130/Q170/Q210/Q270 . . . . . . . . . 99Diagnosing an Ice Machinethat Will Not Run . . . . . . . . . . . . . . . . . 99Diagnosing Ice Thickness Control Circuitry . . . . . . . . . . . . . . . . . . . . . . . . 100Ice Production Check . . . . . . . . . . . . . 103Installation and Visual Inspection Checklist . . . . . . . . . . . . . . . . . . . . . . . 104Water System Checklist . . . . . . . . . . . 105Ice Formation Pattern . . . . . . . . . . . . . 106Safety Limit Feature . . . . . . . . . . . . . . 108Analyzing Discharge Pressure . . . . . . 115Analyzing Suction Pressure . . . . . . . . 117Hot Gas Valve . . . . . . . . . . . . . . . . . . . 121Comparing Evaporator Inlet/OutletTemperatures . . . . . . . . . . . . . . . . . . . 125Discharge Line Temperature Analysis 126Refrigeration Component Diagnostic Chart . . . . . . . . . . . . . . . . . . . . . . . . . . 128Final Analysis . . . . . . . . . . . . . . . . . . . 130Refrigeration Component Diagnostic Chart131QM20/QM30 . . . . . . . . . . . . . . . . . . . . . . . . 134Diagnosing an Ice Machinethat Will Not Run . . . . . . . . . . . . . . . . . 134Refrigeration Diagnostics . . . . . . . . . . 135Ice Formation Pattern . . . . . . . . . . . . . 137QM45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139Electrical . . . . . . . . . . . . . . . . . . . . . . . 139Refrigeration Diagnostics . . . . . . . . . . 140Flooding Expansion Valve . . . . . . . . . . 143Starving Expansion Valve/Low Refrigerant Charge . . . . . . . . . . . 143Overcharged System . . . . . . . . . . . . . 143SM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144Diagnosing an Ice Machinethat Will Not Run . . . . . . . . . . . . . . . . . 144Ice Machine Will Not Harvest . . . . . . . 145Ice Quality Is Poor — Cubes are Shallow, Incomplete or White . . . . . . . 146Part Number 80-01111-9 7/10 7
- Page 1: ManitowocQM20/QM30/QM45SM50Q130/Q17
- Page 4 and 5: Read These Before Proceeding:! Caut
- Page 8 and 9: Freeze Cycle Is Long, Low Ice Produ
- Page 10 and 11: CHARTSCycle Times, 24 Hr. Ice Produ
- Page 12 and 13: How to Read a Model NumberCube Size
- Page 14 and 15: Model/Serial Number LocationThe mod
- Page 16 and 17: SM50MODEL/SERIALNUMBER PLATE16 Part
- Page 18 and 19: LaborQ130/Q170/Q210/Q2701. Labor re
- Page 20 and 21: RESIDENTIAL WARRANTY COVERAGEWhat D
- Page 22 and 23: How State Law AppliesThis limited w
- Page 24 and 25: Ice Machine Clearance RequirementsS
- Page 26 and 27: SM50/QM20/QM30After moving the ice
- Page 28 and 29: Electrical SpecificationsQ130/Q170/
- Page 30 and 31: QM20/QM30/QM45 Air-cooled Ice Machi
- Page 32 and 33: COOLING TOWER APPLICATIONSWater Coo
- Page 34 and 35: QM20/QM30LocationIce MakingWater In
- Page 36 and 37: This Page Intentionally Left Blank3
- Page 38 and 39: ON/OFF/WASHTOGGLESWITCHCONDENSER AI
- Page 40 and 41: ON/OFF/WASHTOGGLESWITCHQM20 Ice Mac
- Page 42 and 43: WATERPUMPEVAPORATORWATERSHUTTERASSE
- Page 44 and 45: AIR-COOLED CONDENSERA dirty condens
- Page 46 and 47: Step 1 Set the toggle switch to the
- Page 48 and 49: D. Remove the Ice Thickness Probe
- Page 50 and 51: Disassembly• Twist both of the in
- Page 52 and 53: F. Remove the Float Valve• Turn t
- Page 54 and 55: H. Remove the ice damper.Q130• Gr
Cleaning the Condenser . . . . . . . . . . . . . 43Air-cooled Condenser . . . . . . . . . . . . . 44Water-cooled Condenser and Water Regulating Valve . . . . . . . . . . . 44QM45/Q130/Q170/Q210/Q270 . . . . . . . . . 45Interior Cleaning and Sanitizing . . . . . 45QM20/QM30 . . . . . . . . . . . . . . . . . . . . . . . 60Cleaning and Sanitizing Procedure . . 60SM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67Cleaning Procedure . . . . . . . . . . . . . . 67Sanitizing Procedure . . . . . . . . . . . . . 68Removal of Parts for Cleaning andSanitizing . . . . . . . . . . . . . . . . . . . . . . 69Removal from Service/Winterization . . . 77General . . . . . . . . . . . . . . . . . . . . . . . . 77Air-cooled Ice Machines . . . . . . . . . . . 77Water-cooled Ice Machines . . . . . . . . 78OPERATIONQM45/Q130/Q170/Q210/Q270 . . . . . . . . . 79Initial Start-up or Start-up After Automatic Shut-off . . . . . . . . . . . . . . . 79Freeze Sequence . . . . . . . . . . . . . . . . 79Harvest Sequence . . . . . . . . . . . . . . . 80Automatic Shut-off . . . . . . . . . . . . . . . 80Energized Parts Chart . . . . . . . . . . . . 81QM20/QM30 . . . . . . . . . . . . . . . . . . . . . . . 83Initial Start-up or Start-up After Automatic Shut-off . . . . . . . . . . . . . . . 83Freeze Sequence . . . . . . . . . . . . . . . . 83Harvest Sequence . . . . . . . . . . . . . . . 84Automatic Shut-off . . . . . . . . . . . . . . . 84Energized Parts Chart . . . . . . . . . . . . 85SM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86Initial Start-up or Start-up After Automatic Shut-off . . . . . . . . . . . . . . . 86Energized Parts Chart . . . . . . . . . . . . 88Operational Checks . . . . . . . . . . . . . . . . . 89QM45/Q130/Q170/Q210/Q270 . . . . . 89QM20/QM30 . . . . . . . . . . . . . . . . . . . . 92SM50 . . . . . . . . . . . . . . . . . . . . . . . . . 956 Part Number 80-01111-9 7/10
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