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Model/Serial Number LocationThe model and serial numbers are required whenrequesting information from your local <strong>Manitowoc</strong>distributor, service representative, or <strong>Manitowoc</strong> Ice.The model and serial number are listed on theOWNER WARRANTY REGISTRATION CARD. Theyare also listed on the MODEL/SERIAL NUMBERDECAL affixed to the ice machine.Q130/Q170/Q210/Q270MODEL/SERIALNUMBER PLATEMODEL/SERIALNUMBER PLATESV1687GModel/Serial Number Location14 Part Number 80-01111-9 7/10
QM20/QM30MODEL/SERIALNUMBER PLATEMODEL/SERIALNUMBER PLATESV1599QM45MODEL/SERIALNUMBER PLATEMODEL/SERIALNUMBERPLATESV1732Part Number 80-01111-9 7/10 15
Page 1: ManitowocQM20/QM30/QM45SM50Q130/Q17
Page 4 and 5: Read These Before Proceeding:! Caut
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 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
Page 56 and 57: I. Remove the Bin Door• Grasp the
Page 58 and 59: Step 12 Use 1/2 of the sanitizer/wa
Page 60 and 61: QM20/QM30CLEANING AND SANITIZING PR
Page 62 and 63: Step 6 Remove parts for cleaning.A.
Page 64 and 65:
Step 7 Mix a solution of cleaner an
Page 66 and 67:
Step 20 Use half of the sanitizer/w
Page 68 and 69:
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
Page 74 and 75:
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
Page 88 and 89:
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
Page 96 and 97:
Clean (Green)Pressing the “Clean
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This Page Intentionally Left Blank9
Page 100 and 101:
DIAGNOSING ICE THICKNESS CONTROLCIR
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Ice Machine Cycles Into Harvest Bef
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INSTALLATION AND VISUAL INSPECTIONC
Page 106 and 107:
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
Page 124 and 125:
FindingsThe inlet of the harvestval
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DISCHARGE LINE TEMPERATURE ANALYSIS
Page 128 and 129:
REFRIGERATION COMPONENT DIAGNOSTICC
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FINAL ANALYSISThe column with the h
Page 132 and 133:
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
Page 144 and 145:
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
Page 150 and 151:
DISCHARGE PRESSURE HIGH CHECKLISTIm
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ProcedureStep1. Determine the ice m
Page 154 and 155:
Other• Non-Manitowoc components i
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FindingsThe inlet of the harvestval
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ADJUSTING CUBE WEIGHTThe cube weigh
Page 160 and 161:
Bin SwitchQM45/Q130/Q170/Q210/Q270F
Page 162 and 163:
Bin Switch Removal — QM45/Q1301.
Page 164 and 165:
Bin ThermostatQM20/QM30FunctionThe
Page 166 and 167:
SM50FunctionThe bin thermostat stop
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Check Procedure! WarningHigh (line)
Page 170 and 171:
Temperature/Resistance ChartAs the
Page 172 and 173:
ON/OFF/WASH Toggle SwitchFUNCTIONTh
Page 174 and 175:
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
Page 182 and 183:
REFRIGERANT RE-USE POLICYManitowoc
Page 184 and 185:
RECOVERY AND RECHARGING PROCEDURESQ
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NOTE: Manifold gauges must be remov
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ImportantManifold gau ges must be r
Page 190 and 191:
System Contamination CleanupGENERAL
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MILD SYSTEM CONTAMINATION CLEANUPPR
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REPLACING PRESSURE CONTROLS WITHOUT
Page 196 and 197:
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
Page 202 and 203:
Page 204 and 205:
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
Page 216 and 217:
Q270 SELF-CONTAINED WATER-COOLEDNOT
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QM20CAUTION: DISCONNECT POWER BEFOR
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QM30230V/1 Ph/50 HzL1CAUTION: DISCO
Page 222 and 223:
SM50L1CAUTION: DISCONNECT POWER BEF
Page 224 and 225:
Q130/Q170/Q210Danfoss CompressorL1N
Page 226 and 227:
Q270Danfoss CompressorL1NOTE: DIAGR
Page 228 and 229:
QM45/Q130/Q170/Q210/Q270ICE THICKNE
Page 230 and 231:
Tubing SchematicsQM20/QM30 Tubing S
Page 232 and 233:
SM50 Tubing SchematicHEATEXCHANGERE
Page 234:
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