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H. Remove the ice damper.Q130• Grasp left side of ice damper and applypressure against the right-hand ice dampermounting bracket.• Pull forward on the ice damper until the lefthandmounting pin disengages.STEP 2STEP 1SV1731FInstallation• Grasp the right side of ice damper and placeleft hand pin in the mounting bracket.• While applying pressure against the left-handmounting bracket push the damper until theright-hand mounting pin engages.STEP 1STEP 2Q170/Q210/Q270SV1731G54 Part Number 80-01111-9 7/10
• Grasp ice damper and apply pressure towardthe left hand mounting bracket.• Apply pressure to the right hand mountingbracket with thumb.• Pull ice damper forward when the right handice damper pin disengages.STEP 3STEP 2STEP 1SV1742AInstallation• Place ice damper pin in left hand mountingbracket and apply pressure toward the lefthand mounting bracket.• Apply pressure to the right hand mountingbracket with thumb.• Push ice damper toward evaporator until righthand damper pin engages.STEP 2STEP 1STEP 3SV1742HPart Number 80-01111-9 7/10 55
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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 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 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
Page 70 and 71: WATER SHUTTERSThe water shutter is
Page 72 and 73: SUMP DRAIN OVERFLOW TUBE1. Remove c
Page 74 and 75: SPRAY BAR, WATER PUMP AND HOSE! War
Page 76 and 77: ! WarningWear ru bber gloves an d s
Page 78 and 79: WATER-COOLED ICE MACHINES1. Perform
Page 80 and 81: HARVEST SEQUENCE5. HarvestThe water
Page 82 and 83: ICE MAKINGSEQUENCE OFOPERATIONHarve
Page 84 and 85: HARVEST SEQUENCE4. Harvest CycleThe
Page 86 and 87: SM50INITIAL START-UP OR START-UP AF
Page 88 and 89: ENERGIZED PARTS CHARTSM50Self-conta
Page 90 and 91: Water Level CheckThe float valve is
Page 92 and 93: QM20/QM30Routine adjustments and ma
Page 94 and 95: 5. Remove the two screws holding th
Page 96 and 97: Clean (Green)Pressing the “Clean
Page 98 and 99: This Page Intentionally Left Blank9
Page 100 and 101: DIAGNOSING ICE THICKNESS CONTROLCIR
Page 102 and 103: Ice Machine Cycles Into Harvest Bef
Page 104 and 105:
INSTALLATION AND VISUAL INSPECTIONC
Page 106 and 107:
ICE FORMATION PATTERNEvaporator ice
Page 108 and 109:
SAFETY LIMIT FEATUREIn addition to
Page 110 and 111:
Safety Limit Notes• A safety limi
Page 112 and 113:
Safety Limit ChecklistThe following
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Safety Limit #2Harvest time exceeds
Page 116 and 117:
Discharge Pressure High ChecklistIm
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ProcedureStep1. Determine the ice m
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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:
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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
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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 162 and 163:
Bin Switch Removal — QM45/Q1301.
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
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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
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:
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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:
Page 214 and 215:
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
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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
Page 230 and 231:
Tubing SchematicsQM20/QM30 Tubing S
Page 232 and 233:
SM50 Tubing SchematicHEATEXCHANGERE
Page 234:
This Page Intentionally Left Blank2
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