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Ice Machine Clearance RequirementsSelf-containedAir-cooled*NOTE: The ice machine may be built into a cabinet.There is no minimum clearance requirement for thetop or left and right sides of the ice machine. The listedvalues are recommended for efficient operation andservicing only.Ice Machine Heat of RejectionSelf-containedWater-cooledTop/Sides 5" (127 mm)* 5" (127 mm)*Back 5" (127 mm)* 5" (127 mm)*SeriesIce MachineHeat of Rejection*Air Conditioning**PeakSM50 1145 2300QM20 1450 2100QM30 1600 2350QM45 1750 2600Q130 2100 3300Q170 2200 2600Q210 2400 3400Q270 3800 6000* B.T.U./Hour** Because the heat of rejection varies during the ice making cycle,the figure shown is an average.Ice machines, like other refrigeration equipment, rejectheat through the condenser. It is helpful to know theamount of heat rejected by the ice machine whensizing air conditioning equipment where self-containedair-cooled ice machines are installed.24 Part Number 80-01111-9 7/10
Leveling the Ice MachineQM45/Q130/Q170/Q210/Q2701. Screw the leveling legs onto the bottom of the icemachine.2. Screw the foot of each leg in as far as possible.! CautionThe leg s must be screwe d in tightly to preventhem from bending.t3. Move the ice machine into its final position.4. Level the ice machine to ensure that the siphonsystem functions correctly. Use a level on top ofthe ice machine. Turn each foot as necessary tolevel the ice machine from front to back and sideto side.NOTE: An optional 2-1/2" (6.35 cm) caster assembly isavailable for use in place of the legs on the Q130,Q170, Q210, Q270, or QM45. Installation instructionsare supplied with the casters.THREADLEVELING LEGINTO BASE OFCABINETTHREAD “FOOT”IN AS FAR ASPOSSIBLELeg InstallationSV1606Part Number 80-01111-9 7/10 25
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 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 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
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
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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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This Page Intentionally Left Blank9
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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
Page 160 and 161:
Bin SwitchQM45/Q130/Q170/Q210/Q270F
Page 162 and 163:
Bin Switch Removal — QM45/Q1301.
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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
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
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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
Page 230 and 231:
Tubing SchematicsQM20/QM30 Tubing S
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SM50 Tubing SchematicHEATEXCHANGERE
Page 234:
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