Transcription
Engineered for EaseUndercounter Ice MachinesQM20 / QM30 / QM45 / SM050Q130 / Q170 / Q210 / Q270Technicians HandbookPart Number 8001119 10/19
Safety NoticesAs you work on Manitowoc equipment, be sure to payclose attention to the safety notices in this handbook.Disregarding the notices may lead to serious injuryand/or damage to the equipment.Throughout this handbook, you will see the followingtypes of safety notices:! WarningText in a Warning box alerts you to a potentialpersonal injury situation. Be sure to read theWarning statement before proceeding, and workcarefully.! CautionText in a Caution box alerts you to a situation inwhich you could damage the equipment. Be sureto read the Caution statement before proceeding,and work carefully.Procedural NoticesAs you work on Manitowoc equipment, be sure to readthe procedural notices in this handbook. These noticessupply helpful information which may assist you asyou work.Throughout this handbook, you will see the followingtypes of procedural notices:ImportantText in an Important box provides you withinformation that may help you perform aprocedure more efficiently. Disregarding thisinformation will not cause damage or injury, but itmay slow you down as you work.NOTE: Text set off as a Note provides you with simple,but useful, extra information about the procedure youare performing.
Read These Before Proceeding:! CautionProper installation, care and maintenance areessential for maximum performance and troublefree operation of your Manitowoc equipment. Ifyou encounter problems not covered by thishandbook, do not proceed, contact ManitowocFoodservice Group. We will be happy to intenanceprocedures outlined in this handbook are notcovered by the warranty.! WarningPERSONAL INJURY POTENTIALDo not operate equipment that has been misused,abused, neglected, damaged, or altered/modifiedfrom that of original manufactured specifications.! WarningPOTENTIAL PERSONAL INJURYSITUATIONThis ice machine contains refrigerant charge.Installation and brazing of the line sets must beperformed by a properly trained refrigerationtechnician aware of the Dangers of dealing withrefrigerant charged equipment. The technicianmust also be US Government EnvironmentalProtection Agency (EPA) certified in properrefrigerant handling and servicing procedures.We reserve the right to make productimprovements at any time. Specifications anddesign are subject to change without notice.
Table of ContentsGENERAL INFORMATIONModel Numbers . . . . . . . . . . . . . . . . . . . . . 11How to Read a Model Number . . . . . . . . . 12Accessories . . . . . . . . . . . . . . . . . . . . . . . 12Bin Caster . . . . . . . . . . . . . . . . . . . . . . 12Manitowoc Cleaner and Sanitizer . . . . 12Model/Serial Number Location . . . . . . . . 14Q130/Q170/Q210/Q270 . . . . . . . . . . . 14QM20/QM30 . . . . . . . . . . . . . . . . . . . . 15QM45 . . . . . . . . . . . . . . . . . . . . . . . . . . 15Ice Machine Warranty Information . . . . . 17Owner Warranty Registration Card . . . 17Commercial Warranty Coverage . . . . . 17Residential Warranty Coverage . . . . . 20INSTALLATIONLocation of Ice Machine . . . . . . . . . . . . . . 23Ice Machine Clearance Requirements . . 24Ice Machine Heat of Rejection . . . . . . . . . 24Leveling the Ice Machine . . . . . . . . . . . . . 25QM45/Q130/Q170/Q210/Q270 . . . . . . 25SM50/QM20/QM30 . . . . . . . . . . . . . . . 26Electrical Requirements . . . . . . . . . . . . . . 27Voltage . . . . . . . . . . . . . . . . . . . . . . . . 27Electrical Specifications . . . . . . . . . . . . . 28Water Service/Drains . . . . . . . . . . . . . . . . 31Water Supply . . . . . . . . . . . . . . . . . . . . 31Water Inlet Lines . . . . . . . . . . . . . . . . . 31Drain Connections . . . . . . . . . . . . . . . . 31Cooling Tower Applications . . . . . . . . . 32COMPONENT IDENTIFICATIONQM45/Q130/Q170/Q210/Q270 . . . . . . . . . . 37QM20/QM30 . . . . . . . . . . . . . . . . . . . . . . . . 39SM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Part Number 8001119 10/195
MAINTENANCEIce Machine Inspection . . . . . . . . . . . . . . 43Exterior Cleaning . . . . . . . . . . . . . . . . . . . 43Cleaning the Condenser . . . . . . . . . . . . . 43Air-cooled Condenser . . . . . . . . . . . . . 44Water-cooled Condenser and WaterRegulating Valve . . . . . . . . . . . . . . . . 44QM45/Q130/Q170/Q210/Q270 . . . . . . . . . 45Interior Cleaning and Sanitizing . . . . . 45QM20/QM30 . . . . . . . . . . . . . . . . . . . . . . . 60Cleaning and Sanitizing Procedure . . 60SM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67Cleaning Procedure . . . . . . . . . . . . . . 67Sanitizing Procedure . . . . . . . . . . . . . 68Removal of Parts for Cleaning andSanitizing . . . . . . . . . . . . . . . . . . . . . . 69Removal from Service/Winterization . . . 77General . . . . . . . . . . . . . . . . . . . . . . . . 77Self-contained Air-cooled Ice Machines 77Water-cooled Ice Machines . . . . . . . . 78OPERATIONQM45/Q130/Q170/Q210/Q270 . . . . . . . . . 79Initial Start-up or Start-up After AutomaticShut-off . . . . . . . . . . . . . . . . . . . . . . . . 79Freeze Sequence . . . . . . . . . . . . . . . . 79Harvest Sequence . . . . . . . . . . . . . . . 80Automatic Shut-off . . . . . . . . . . . . . . . 80Energized Parts Chart . . . . . . . . . . . . 81QM20/QM30 . . . . . . . . . . . . . . . . . . . . . . . 83Initial Start-up or Start-up After AutomaticShut-off . . . . . . . . . . . . . . . . . . . . . . . . 83Freeze Sequence . . . . . . . . . . . . . . . . 83Harvest Sequence . . . . . . . . . . . . . . . 84Automatic Shut-off . . . . . . . . . . . . . . . 84Energized Parts Chart . . . . . . . . . . . . 85SM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86Initial Start-up or Start-up After AutomaticShut-off . . . . . . . . . . . . . . . . . . . . . . . . 86Energized Parts Chart . . . . . . . . . . . . 886Part Number 8001119 10/19
Operational Checks . . . . . . . . . . . . . . . . . 89QM45/Q130/Q170/Q210/Q270 . . . . . . 89QM20/QM30 . . . . . . . . . . . . . . . . . . . . 92SM50 . . . . . . . . . . . . . . . . . . . . . . . . . . 95Delay Start . . . . . . . . . . . . . . . . . . . . . . . . . 96Repeat Delay Period Every 24 Hours . 96TROUBLESHOOTINGQM45/Q130/Q170/Q210/Q270 . . . . . . . . . . 99Diagnosing an Ice Machinethat Will Not Run . . . . . . . . . . . . . . . . . 99Diagnosing Ice Thickness Control Circuitry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100Ice Production Check . . . . . . . . . . . . . 103Installation and Visual Inspection Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104Water System Checklist . . . . . . . . . . . 105Ice Formation Pattern . . . . . . . . . . . . . 106Safety Limit Feature . . . . . . . . . . . . . . 108Analyzing Discharge Pressure . . . . . . 115Analyzing Suction Pressure . . . . . . . . 117Hot Gas Valve . . . . . . . . . . . . . . . . . . . 121Comparing Evaporator Inlet/OutletTemperatures . . . . . . . . . . . . . . . . . . . 125Discharge Line Temperature Analysis 126Refrigeration Component Diagnostic Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128Final Analysis . . . . . . . . . . . . . . . . . . . 130Refrigeration Component Diagnostic Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131QM20/QM30 . . . . . . . . . . . . . . . . . . . . . . . . 134Diagnosing an Ice Machinethat Will Not Run . . . . . . . . . . . . . . . . . 134Refrigeration Diagnostics . . . . . . . . . . 135Ice Formation Pattern . . . . . . . . . . . . . 137QM45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139Electrical . . . . . . . . . . . . . . . . . . . . . . . 139Refrigeration Diagnostics . . . . . . . . . . 140Flooding Expansion Valve . . . . . . . . . . 143Starving Expansion Valve/Low RefrigerantCharge . . . . . . . . . . . . . . . . . . . . . . . . . 143Overcharged System . . . . . . . . . . . . . . 143Part Number 8001119 10/197
SM50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144Diagnosing an Ice Machinethat Will Not Run . . . . . . . . . . . . . . . . . 144Ice Machine Will Not Harvest . . . . . . . 145Ice Quality Is Poor — Cubes are Shallow,Incomplete or White . . . . . . . . . . . . . . 146Freeze Cycle Is Long, Low Ice Production. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147Ice Machine Runs and No Ice Is Produced. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148Analyzing Discharge Pressure . . . . . . 149Discharge Pressure High Checklist . . 150Freeze Cycle Discharge Pressure LowChecklist . . . . . . . . . . . . . . . . . . . . . . . 150Analyzing Suction Pressure . . . . . . . . 151Hot Gas Valve . . . . . . . . . . . . . . . . . . 154COMPONENT CHECK PROCEDURESMain Fuse . . . . . . . . . . . . . . . . . . . . . . . . .Function . . . . . . . . . . . . . . . . . . . . . . .Specifications . . . . . . . . . . . . . . . . . . .Check Procedure . . . . . . . . . . . . . . . .Bin Switch . . . . . . . . . . . . . . . . . . . . . . . .QM45/Q130/Q170/Q210/Q270 . . . . . .Bin Thermostat . . . . . . . . . . . . . . . . . . . .QM20/QM30 . . . . . . . . . . . . . . . . . . . .SM50 . . . . . . . . . . . . . . . . . . . . . . . . .Liquid Line Thermistor . . . . . . . . . . . . . .QM20/QM30/SM50 . . . . . . . . . . . . . . .Diagnosing Start Components . . . . . . . .Capacitor . . . . . . . . . . . . . . . . . . . . . .Relay . . . . . . . . . . . . . . . . . . . . . . . . .ON/OFF/WASH Toggle Switch . . . . . . . .Function . . . . . . . . . . . . . . . . . . . . . . .Specifications . . . . . . . . . . . . . . . . . . .Check Procedure . . . . . . . . . . . . . . . .QM45/Q130/Q170/Q210/Q270 . . . . . .QM20/QM30 . . . . . . . . . . . . . . . . . . . .Ice Thickness Probe . . . . . . . . . . . . . . . .QM45/Q130/Q170/Q210/Q270 . . . . . .Ice Thickness Check . . . . . . . . . . . . 172172173173174174175Part Number 8001119 10/19
Compressor Electrical Diagnostics . . . . 176Check Resistance (Ohm) Values . . . . 176Single Phase Compressors . . . . . . . . . 176Check Motor Windings to Ground . . . . 176Compressor Drawing Locked Rotor . . 177Compressor Drawing High Amps . . . . 177Fan Cycle Control . . . . . . . . . . . . . . . . . . . 178QM45/Q130/Q170/Q210/Q270 . . . . . . 178High Pressure Cutout (HPCO) Control . . 179QM45/Q130/Q170/Q210/Q270 . . . . . . 179Filter-Driers . . . . . . . . . . . . . . . . . . . . . . . . 180Liquid Line Filter Drier . . . . . . . . . . . . . 180Refrigerant Recovery/Evacuation . . . . . . 181Definitions . . . . . . . . . . . . . . . . . . . . . . 181Refrigerant Re-use Policy . . . . . . . . . . 182Recovery and Recharging Procedures 184System Contamination Cleanup . . . . . . . 190General . . . . . . . . . . . . . . . . . . . . . . . . 190Determining Severity of Contamination 190Mild System Contamination CleanupProcedure . . . . . . . . . . . . . . . . . . . . . . 192Severe System Contamination CleanupProcedure . . . . . . . . . . . . . . . . . . . . . . 193Replacing Pressure Controls withoutRemoving Refrigerant Charge . . . . . . . 194Q270 Condenser Fan Motor Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196Brazing Procedures for Danfoss Valves 197COMPONENT SPECIFICATIONSMain Fuse . . . . . . . . . . . . . . . . . . . . . . . . . 199Bin Switch . . . . . . . . . . . . . . . . . . . . . . . . . 199QM45/Q130/Q170/Q210/Q270 . . . . . . 199Bin Thermostat . . . . . . . . . . . . . . . . . . . . . 199QM20/QM30/SM50 . . . . . . . . . . . . . . . 199ON/OFF/WASH Toggle Switch . . . . . . . . . 199Fan Control Cycle . . . . . . . . . . . . . . . . . . . 199QM45/Q130/Q170/Q210/Q270 . . . . . . 199High Pressure Cutout (HPCO) Control . . 200Filter-Driers . . . . . . . . . . . . . . . . . . . . . . . . 200Liquid Line Thermistor . . . . . . . . . . . . . . . 200QM20/QM30/SM50 . . . . . . . . . . . . . . . 200Total System Refrigerant Charge . . . . . . 201Part Number 8001119 10/199
CHARTSCycle Times, 24 Hr. Ice Production andRefrigerant Pressure Charts . . . . . . . . . .QM20 Self-contained Air-cooled . . . . .QM30 Self-contained Air-cooled . . . . .QM45 Self-contained Air-cooled . . . . .QM45 Operating Temperatures . . . . .SM50 Self-contained Air-cooled . . . . .Q130 Self-contained Air-cooled(Before Serial Number 310047287) . .Q130 Self-contained Air-cooled(After Serial Number 310047287) . . . .Q130 Self-contained Water-cooled . .Q170 Self-contained Air-cooled . . . . .Q210 Self-contained Air-cooled . . . . .Q210 Self-contained Water-cooled . .Q270 Self-contained Air-cooled . . . . .Q270 Self-contained Water-cooled . .DIAGRAMSWiring Diagrams . . . . . . . . . . . . . . . . . . .QM20 . . . . . . . . . . . . . . . . . . . . . . . . .QM30 . . . . . . . . . . . . . . . . . . . . . . . . .QM30 . . . . . . . . . . . . . . . . . . . . . . . . .QM45 . . . . . . . . . . . . . . . . . . . . . . . . .SM50 . . . . . . . . . . . . . . . . . . . . . . . . .Q130/Q210 . . . . . . . . . . . . . . . . . . . . .Q130/Q170/Q210 . . . . . . . . . . . . . . . .Q270 . . . . . . . . . . . . . . . . . . . . . . . . . .Q270 . . . . . . . . . . . . . . . . . . . . . . . . . .Electronic Control Boards . . . . . . . . . . .Tubing Schematics . . . . . . . . . . . . . . . . 8219220221222223224225226227230Part Number 8001119 10/19
General InformationModel NumbersThis manual covers the following 70AQR0271WQD0272AQD0273WQY0274AQY0275W*QM Models – the suffix E represents 230 volt/1 ph/50 hz machine.! WarningAn ice machine contains high voltage electricityand refrigerant charge. Repairs are to beperformed by properly trained refrigerationtechnicians aware of the dangers of dealing withhigh voltage electricity and refrigerant underpressure.Part Number 8001119 10/1911
How to Read a Model NumberCube SizeCapacityCondenserTypeSeriesQ R 0130 AA - Air-cooledW - Water-cooledR - RegularD - DiceY - Half-dice0 - Regular, Air-cooled1 - Regular, Water-cooled2 - Dice, Air-cooled3 - Dice, Water-cooled4 - Half-dice, Air-cooled5 - Half-dice, Water-cooledAccessoriesContact your Manitowoc distributor for these optionalaccessories:BIN CASTERReplaces standard legs.MANITOWOC CLEANER AND SANITIZERManitowoc Ice Machine Cleaner and Sanitizer areavailable in convenient 16 oz. (473 ml) and 1 gal(3.78 l) bottles. These are the only cleaner andsanitizer approved for use with Manitowoc products.Cleaner Part Number16 oz94-0456-3*16 oz0000000841 Gallon4-0580-3Sanitizer Part Number16 oz94-0565-31 Gallon 94-0581-3* This cleaner must be used with all SM50 ice machines. Evaporatordamage will result with repeated use or high concentrations of P/N94-0565-3 cleaner with SM50 ice machines.12Part Number 8001119 10/19
! CautionUse only Manitowoc approved Ice MachineCleaner (part number 94-0546-3 original greenice machine cleaner or 000000084 clear metalsafe ice machine cleaner) and Sanitizer (partnumber 94-0565-3). It is a violation of Federallaw to use these solutions in a mannerinconsistent with their labeling. Read andunderstand all labels printed on bottles beforeuse.NOTE: The Manitowoc Automatic Cleaning System(AuCS ) accessory cannot be used with Undercounterice machines SM50, QM20, QM30, QM45, Q130,Q170, Q210, or Q270.QM20, QM30, QM45 ice machines do not have awater curtain covering the evaporator. Q130, Q210,Q170, Q270 have an ice damper that performs thefunctions of the water curtain see Ice DamperRemoval/Installation for Details.Part Number 8001119 10/1913
Model/Serial Number LocationThe model and serial numbers are required whenrequesting information from your local Manitowocdistributor, service representative, or Manitowoc 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 Location14Part Number 8001119 10/19
QM20/QM30MODEL/SERIALNUMBER PLATEMODEL/SERIALNUMBER PLATESV1599QM45MODEL/SERIALNUMBER PLATEMODEL/SERIALNUMBERPLATEPart Number 8001119 10/19SV173215
SM50MODEL/SERIALNUMBER PLATE16Part Number 8001119 10/19
Ice Machine Warranty InformationOWNER WARRANTY REGISTRATION CARDGeneralWarranty coverage begins the day the ice machine isinstalled.ImportantComplete and mail the OWNER WARRANTYREGISTRATION CARD as soon as possible tovalidate the installation date.If the OWNER WARRANTY REGISTRATION CARD isnot returned, Manitowoc will use the date of sale to theManitowoc Distributor as the first day of warrantycoverage for your new ice machine.COMMERCIAL WARRANTY COVERAGEGeneralThe following Warranty outline is provided for yourconvenience. For a detailed explanation, read thewarranty bond shipped with each product.Contact your local Manitowoc representative orManitowoc Ice, if you need further warrantyinformation.PartsQ130/Q170/Q210/Q2701. Manitowoc warrants the ice machine againstdefects in materials and workmanship, undernormal use and service for three (3) years fromthe date of original installation.2. The evaporator and compressor are covered byan additional two (2) year (five years total)warranty beginning on the date of the originalinstallation.SM50/QM20/QM30/QM451. Manitowoc warrants the ice machine againstdefects in materials and workmanship, undernormal use and service for three (3) years fromthe date of original installation.Part Number 8001119 10/1917
LaborQ130/Q170/Q210/Q2701. Labor required to repair or replace defectivecomponents is covered for three (3) years fromthe date of original installation.2. The evaporator is covered by an additional two(2) year (five years total) labor warranty beginningon the date of the original installation (Q130/Q170/Q210/Q270 only).SM50/QM20/QM30/QM451. Labor required to repair or replace defectivecomponents is covered for three (3) years fromthe date of original installation.ExclusionsThe following items are not included in the icemachine’s warranty coverage:1. Normal maintenance, adjustments and cleaningas outlined in this manual.2. Repairs due to unauthorized modifications to theice machine or use of non-standard parts withoutprior written approval from Manitowoc Ice.3. Damage caused by improper installation of the icemachine, electrical supply, water supply ordrainage, or damage caused by floods, storms, orother acts of God.4. Premium labor rates due to holidays, overtime,etc.; travel time; flat rate service call charges;mileage and miscellaneous tools and materialcharges not listed on the payment schedule.Additional labor charges resulting from theinaccessibility of equipment are also excluded.5. Parts or assemblies subjected to misuse, abuse,neglect or accidents.6. Damage or problems caused by installation,cleaning and/or maintenance proceduresinconsistent with the technical instructionsprovided in this manual.7. This warranty is intended exclusively forcommercial application. No warranty is extendedfor personal, family, or household purposes.18Part Number 8001119 10/19
Authorized Warranty ServiceTo comply with the provisions of the warranty, arefrigeration service company qualified and authorizedby your Manitowoc distributor, or a Contracted ServiceRepresentative must perform the warranty repair.Service CallsNormal maintenance, adjustments and cleaning asoutlined in this manual are not covered by thewarranty.Part Number 8001119 10/1919
RESIDENTIAL WARRANTY COVERAGEWhat Does this Limited Warranty Cover?Subject to the exclusions and limitations below,Manitowoc Ice (“Manitowoc”) warrants to the originalconsumer that any new ice machine manufac
Use only Manitowoc approved Ice Machine Cleaner (part number 94-0546-3 original green ice machine cleaner or 000000084 clear metal safe ice machine cleaner) and Sanitizer (part number 94-0565-3). It is a violation of Federal law to use these solutio
