- Page 1: ManitowocQM20/QM30/QM45SM50Q130/Q17
- Page 6 and 7: Cleaning the Condenser . . . . . .
- 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
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I. Remove the Bin Door• Grasp the
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Step 12 Use 1/2 of the sanitizer/wa
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QM20/QM30CLEANING AND SANITIZING PR
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Step 6 Remove parts for cleaning.A.
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Step 7 Mix a solution of cleaner an
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Step 20 Use half of the sanitizer/w
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4. Wait until the Clean light flash
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WATER SHUTTERSThe water shutter is
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SUMP DRAIN OVERFLOW TUBE1. Remove c
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SPRAY BAR, WATER PUMP AND HOSE! War
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! WarningWear ru bber gloves an d s
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WATER-COOLED ICE MACHINES1. Perform
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HARVEST SEQUENCE5. HarvestThe water
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ICE MAKINGSEQUENCE OFOPERATIONHarve
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HARVEST SEQUENCE4. Harvest CycleThe
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SM50INITIAL START-UP OR START-UP AF
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ENERGIZED PARTS CHARTSM50Self-conta
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Water Level CheckThe float valve is
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QM20/QM30Routine adjustments and ma
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5. Remove the two screws holding th
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Clean (Green)Pressing the “Clean
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DIAGNOSING ICE THICKNESS CONTROLCIR
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Ice Machine Cycles Into Harvest Bef
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INSTALLATION AND VISUAL INSPECTIONC
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ICE FORMATION PATTERNEvaporator ice
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SAFETY LIMIT FEATUREIn addition to
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Safety Limit Notes• A safety limi
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Safety Limit ChecklistThe following
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Safety Limit #2Harvest time exceeds
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Discharge Pressure High ChecklistIm
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ProcedureStep1. Determine the ice m
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Suction Pressure Low ChecklistImpro
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Hot Gas Valve AnalysisThe valve can
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FindingsThe inlet of the harvestval
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DISCHARGE LINE TEMPERATURE ANALYSIS
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REFRIGERATION COMPONENT DIAGNOSTICC
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FINAL ANALYSISThe column with the h
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Q130/Q170/Q210/Q270 Ice Machines On
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QM20/QM30DIAGNOSING AN ICE MACHINET
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QM30The QM30 ice machines have a ve
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Ice Production CheckThe QM20/QM30 d
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REFRIGERATION DIAGNOSTICSImportant:
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5. Install thermometer thermocouple
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SM50DIAGNOSING AN ICE MACHINETHAT W
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ICE QUALITY IS POOR — CUBES ARE S
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ICE MACHINE RUNS AND NO ICE IS PROD
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DISCHARGE PRESSURE HIGH CHECKLISTIm
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ProcedureStep1. Determine the ice m
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Other• Non-Manitowoc components i
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FindingsThe inlet of the harvestval
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ADJUSTING CUBE WEIGHTThe cube weigh
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Bin SwitchQM45/Q130/Q170/Q210/Q270F
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Bin Switch Removal — QM45/Q1301.
- Page 164 and 165:
Bin ThermostatQM20/QM30FunctionThe
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SM50FunctionThe bin thermostat stop
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Check Procedure! WarningHigh (line)
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Temperature/Resistance ChartAs the
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ON/OFF/WASH Toggle SwitchFUNCTIONTh
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Ice Thickness ProbeQM45/Q130/Q170/Q
- Page 176 and 177:
Compressor Electrical DiagnosticsTh
- Page 178 and 179:
Fan Cycle ControlQM45/Q130/Q170/Q21
- Page 180 and 181:
Filter-DriersLIQUID LINE FILTER DRI
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REFRIGERANT RE-USE POLICYManitowoc
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RECOVERY AND RECHARGING PROCEDURESQ
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NOTE: Manifold gauges must be remov
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ImportantManifold gau ges must be r
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System Contamination CleanupGENERAL
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MILD SYSTEM CONTAMINATION CLEANUPPR
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REPLACING PRESSURE CONTROLS WITHOUT
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Q270 Condenser Fan Motor Replacemen
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MAX. 1300°F(700°C)SV30714. Apply
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High Pressure Cutout (HPCO) Control
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QM20 SELF-CONTAINED AIR-COOLEDNOTE:
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QM45 SELF-CONTAINED AIR-COOLEDNOTE:
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SM50 SELF-CONTAINED AIR-COOLEDNOTE:
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Q130 SELF-CONTAINED AIR-COOLED(Afte
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Q170 SELF-CONTAINED AIR-COOLEDNOTE:
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Q210 SELF-CONTAINED WATER-COOLEDNOT
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Q270 SELF-CONTAINED WATER-COOLEDNOT
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QM20CAUTION: DISCONNECT POWER BEFOR
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QM30230V/1 Ph/50 HzL1CAUTION: DISCO
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SM50L1CAUTION: DISCONNECT POWER BEF
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Q130/Q170/Q210Danfoss CompressorL1N
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Q270Danfoss CompressorL1NOTE: DIAGR
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QM45/Q130/Q170/Q210/Q270ICE THICKNE
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Tubing SchematicsQM20/QM30 Tubing S
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SM50 Tubing SchematicHEATEXCHANGERE
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