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Bin Switch Removal — QM45/Q1301. Disconnect power to the ice machine at servicedisconnect.2. Disconnect bin switch wires in control box.3. Depress tab on right side of evaporator withthumb.4. Slide bin switch to right to remove.5. Pull wiring into evaporator compartment.BIN SWITCHTABBin Switch RemovalSV1731H162 Part Number 80-01111-9 7/10
Bin Switch Removal — Q170/Q210/Q2701. Disconnect power to the ice machine at servicedisconnect.2. Disconnect bin switch wires in control box.3. Insert a small screwdriver through the holelocated in the top of the bin switch, and depressmounting tab slightly.4. While depressing mounting tab roll bin switch toright to release.5. Pull wiring into evaporator compartment.INSERTSCREWDRIVER ANDDEPRESS TABBin Switch RemovalBIN SWITCHSV1695BPart Number 80-01111-9 7/10 163
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ManitowocQM20/QM30/QM45SM50Q130/Q17
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Read These Before Proceeding:! Caut
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Cleaning the Condenser . . . . . .
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Freeze Cycle Is Long, Low Ice Produ
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CHARTSCycle Times, 24 Hr. Ice Produ
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How to Read a Model NumberCube Size
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Model/Serial Number LocationThe mod
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SM50MODEL/SERIALNUMBER PLATE16 Part
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LaborQ130/Q170/Q210/Q2701. Labor re
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RESIDENTIAL WARRANTY COVERAGEWhat D
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How State Law AppliesThis limited w
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Ice Machine Clearance RequirementsS
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SM50/QM20/QM30After moving the ice
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Electrical SpecificationsQ130/Q170/
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QM20/QM30/QM45 Air-cooled Ice Machi
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COOLING TOWER APPLICATIONSWater Coo
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QM20/QM30LocationIce MakingWater In
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This Page Intentionally Left Blank3
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ON/OFF/WASHTOGGLESWITCHCONDENSER AI
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ON/OFF/WASHTOGGLESWITCHQM20 Ice Mac
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WATERPUMPEVAPORATORWATERSHUTTERASSE
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AIR-COOLED CONDENSERA dirty condens
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Step 1 Set the toggle switch to the
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D. Remove the Ice Thickness Probe
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Disassembly• Twist both of the in
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F. Remove the Float Valve• Turn t
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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
Page 112 and 113: Safety Limit ChecklistThe following
Page 114 and 115: Safety Limit #2Harvest time exceeds
Page 116 and 117: Discharge Pressure High ChecklistIm
Page 118 and 119: ProcedureStep1. Determine the ice m
Page 120 and 121: Suction Pressure Low ChecklistImpro
Page 122 and 123: Hot Gas Valve AnalysisThe valve can
Page 124 and 125: FindingsThe inlet of the harvestval
Page 126 and 127: DISCHARGE LINE TEMPERATURE ANALYSIS
Page 128 and 129: REFRIGERATION COMPONENT DIAGNOSTICC
Page 130 and 131: FINAL ANALYSISThe column with the h
Page 132 and 133: Q130/Q170/Q210/Q270 Ice Machines On
Page 134 and 135: QM20/QM30DIAGNOSING AN ICE MACHINET
Page 136 and 137: QM30The QM30 ice machines have a ve
Page 138 and 139: Ice Production CheckThe QM20/QM30 d
Page 140 and 141: REFRIGERATION DIAGNOSTICSImportant:
Page 142 and 143: 5. Install thermometer thermocouple
Page 144 and 145: SM50DIAGNOSING AN ICE MACHINETHAT W
Page 146 and 147: ICE QUALITY IS POOR — CUBES ARE S
Page 148 and 149: ICE MACHINE RUNS AND NO ICE IS PROD
Page 150 and 151: DISCHARGE PRESSURE HIGH CHECKLISTIm
Page 152 and 153: ProcedureStep1. Determine the ice m
Page 154 and 155: Other• Non-Manitowoc components i
Page 156 and 157: FindingsThe inlet of the harvestval
Page 158 and 159: ADJUSTING CUBE WEIGHTThe cube weigh
Page 160 and 161: Bin SwitchQM45/Q130/Q170/Q210/Q270F
Page 164 and 165: Bin ThermostatQM20/QM30FunctionThe
Page 166 and 167: SM50FunctionThe bin thermostat stop
Page 168 and 169: 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
Page 186 and 187: NOTE: Manifold gauges must be remov
Page 188 and 189: ImportantManifold gau ges must be r
Page 190 and 191: System Contamination CleanupGENERAL
Page 192 and 193: MILD SYSTEM CONTAMINATION CLEANUPPR
Page 194 and 195: REPLACING PRESSURE CONTROLS WITHOUT
Page 196 and 197: Q270 Condenser Fan Motor Replacemen
Page 198 and 199: MAX. 1300°F(700°C)SV30714. Apply
Page 200 and 201: High Pressure Cutout (HPCO) Control
Page 202 and 203: This Page Intentionally Left Blank2
Page 204 and 205: QM20 SELF-CONTAINED AIR-COOLEDNOTE:
Page 206 and 207: QM45 SELF-CONTAINED AIR-COOLEDNOTE:
Page 208 and 209: SM50 SELF-CONTAINED AIR-COOLEDNOTE:
Page 210 and 211: 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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