Manitowoc Ice S1800 Section Maintenance Interior Cleaning and Sanitizing, Cleaning Procedure

Page 27

Section 4

Maintenance

 

 

Interior Cleaning and Sanitizing

GENERAL

Clean and sanitize the ice machine every six months for efficient operation. If the ice machine requires more frequent cleaning and sanitizing, consult a qualified service company to test the water quality and recommend appropriate water treatment. An extremely dirty ice machine must be taken apart for cleaning and sanitizing.

!Caution

Use only Manitowoc approved Ice Machine Cleaner (part number 94-0546-3) and Sanitizer (part number 94-0565-3). It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling. Read and understand all labels printed on bottles before use.

CLEANING PROCEDURE

!Caution

Do not mix Cleaner and Sanitizer solutions together. It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling.

!Warning

Wear rubber gloves and safety goggles (and/or face shield) when handling ice machine Cleaner or Sanitizer.

Ice machine cleaner is used to remove lime scale or other mineral deposits. It is not used to remove algae or slime. Refer to the section on Sanitizing for removal of algae and slime.

Step 1 Set the toggle switch to the OFF position after ice falls from the evaporator at the end of a Harvest cycle. Or, set the switch to the OFF position and allow the ice to melt off the evaporator.

!Caution

Never use anything to force ice from the evaporator. Damage may result.

Step 2 To start cleaning, place the toggle switch in the CLEAN position. The water will flow through the water dump valve and down the drain. The Clean light will turn on to indicate the ice machine is in the Cleaning mode.

Step 3 Wait about two minutes or until water starts to flow over the evaporator.

Step 4 Add the proper amount of Manitowoc Ice Machine Cleaner to the water trough.

Model

Amount of Cleaner

S1800M

9 ounces (266 ml)

Step 5 The ice machine will automatically time out a ten minute cleaning cycle, followed by six rinse cycles, and stop. The Clean light will turn off to indicate the Cleaning cycle is completed. This entire cycle lasts approximately 30 minutes.

Step 6 When the cleaning process stops, move the toggle switch to OFF position. Refer to “Sanitizing Procedure” on the next page.

Step 7

A.The ice machine may be set to start and finish a self-cleaning procedure then automatically start ice making again.

B.You must wait about one minute into the cleaning cycle (until water starts to flow over the evaporator) then move the switch from CLEAN to ICE position.

C.When the self-cleaning cycle is completed, an ice making sequence will start automatically.

Important

After the toggle switch is moved to the ICE position, opening the curtain switch will interrupt the cleaning sequence. The sequence will resume from the point of interruption when the curtain switch closes.

Part Number 80-1634-3

4-3

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Contents Service Manual Personal Injury Potential Read These Before ProceedingTable of Contents Table of Contents Section Ice Machine Operation Section MaintenanceSection Before Calling For Service Section Refrigeration System Table of Contents Section Electrical SystemTable of Contents Self-Contained Water-Cooled How to Read a Model NumberModel Numbers Ice Cube SizesGeneral Information Section Accessories Model/Serial Number Location Section General Information Model/Serial Number LocationWarranty Coverage General Ice Machine DimensionsWidth, Depth, and Height Dimensions Electrical and AuCS DimensionsSeries Heat of Rejection Ice Machine Air Conditioning Installation Instructions Section Location of Ice MachineIce Machine Heat of Rejection S1800M Water-CooledElectrical Requirements Section Installation Instructions Electrical ServiceVoltage Minimum Circuit AmpacitySelf Contained ICE Machine 230/1/50 For United Kingdom OnlySelf Contained ICE Machine 115/1/60 or 208-230/1/60 Self Contained ICE Machine 208-230/3/60Drain Connections Cooling Tower ApplicationsWater Supply Water Inlet LinesCondenser Installation Instructions SectionTypical Water Supply Drain Installation Water Supply and Drain Line SIZING/CONNECTIONSSection Installation Instructions Installation Check List Potential Personal Injury Situation AuCS Automatic Cleaning SystemComponent Identification Section Ice Machine OperationInitial START-UP or START-UP After Automatic SHUT-OFF Ice Machine Operation Section Sequence Of OperationAutomatic SHUT-OFF 7. Automatic Shut-Off Safety TimersHarvest Sequence 5. Water Purge HarvestIce Thickness Check Ice Machine Operation Section Operational ChecksWater Level ICE Thickness CheckHarvest Sequence Water Purge Water Purge AdjustmentThis page Intentionally Left Blank Ice Machine Operation SectionAlphaSan→ Exterior CleaningIce Machine Inspection Water-Cooled Condenser Water Regulating ValveSachet Replacement Procedure Maintenance Section GuardianInstallation Sachet Replacement FrequencyStep Section Maintenance Interior Cleaning and SanitizingCleaning Procedure Model Amount of CleanerMaintenance Section Sanitizing ProcedureSolution Type Water Mixed With Sanitizer Solution Type Water Mixed With Removal of Parts for CLEANING/SANITIZINGWater Curtain Water Curtain Removal Ice Thickness ProbeIce Thickness Probe Removal Water Distribution Tube Water TroughWater Distribution Tube Removal Water Level Probe Water PumpWater Pump Removal Water Dump Valve Dump Valve DisassemblyDrain Line Check Valve Evaporator Tray RemovalWater Inlet Valve Maintenance Section Removal from Service/Winterization Pry Open the Water Regulating Valve AUCS→ AccessorySELF-CONTAINED WATER-COOLED ICE Machines Problem Possible Cause To Correct ChecklistSafety Limit Feature Before Calling For Service SectionEnergized Parts Charts Section Electrical SystemSELF-CONTAINED WATER-COOLED Models Self-Contained Water Purge SELF-CONTAINED ModelsInitial Start-Up or Start-Up After Automatic Shut-Off Water PurgeRefrigeration System Start Up 5 Seconds Toggle Switch Refrigeration System START-UPSelf-Contained Refrigeration System Start-Up Self-Contained Pre-Chill Self-Contained Models Electrical System SectionFreeze Sequence PRE-CHILLToggle Switch Bin Switch Control Board Relays FreezeSelf-Contained Freeze Self-Contained Models Harvest Sequence Harvest Automatic Shut-Off Automatic SHUT-OFFSelf-Contained Automatic Shut-Off Wiring Diagram Legend Section Electrical System Wiring DiagramsControl Board S1800 SELF-CONTAINED 1 PhaseS1800 SELF-CONTAINED 3 Phase Main Fuse SpecificationsCheck Procedure BIN SwitchWater Curtain Removal Notes SymptomsDiagnostic Aids Continuity TestDetermine if the Compressor is Seized Compressor Electrical DiagnosticsCheck Resistance Ohm Values Check Motor Windings to GroundPtcr Diagnostics What is a PTCR?Compressor Start Sequence During Start-Up First .25 1.0 Seconds Troubleshooting PTCR’sWHY a Good Ptcr MAY Fail To Start the Compressor Model Automatic Shut-Off and RestartPart Number Checking the PtcrManitowoc Ptcr Model Manitowoc Cera-Mite RoomRelay Operation Check Diagnosing Start ComponentsCapacitor RelaySwitch Setting Terminals Ohm Reading ICE/OFF/CLEAN Toggle SwitchControl Board Electronic Control BoardInputs Safety LimitsHarvest Light Freeze Time LOCK-IN FeatureIce Thickness Probe Cleaning HOW the Probe WorksMonitoring of Harvest Light Correction Diagnosing ICE Thickness Control CircuitryFreeze Cycle Circuitry Water Inlet Valve Safety SHUT-OFFElectrical System Section Water Level Control Circuitry Water Level Probe LightProblem Water Trough Overfilling During Freeze Cycle Diagnosing Water Level Control CircuitryWait until the freeze cycle starts On or OFF Step Check Self Contained 1 Phase with Terminal Board Freeze Cycle Refrigeration Sequence SELF-CONTAINED Water -COOLED ModelsRefrigeration System Section S1800 SELF-CONTAINED Tubing Schematic General Times are in minutes Before Beginning ServiceWeights are in pounds ICE Production CheckINSTALLATION/VISUAL Inspection Checklist Water System ChecklistPossible Problem Corrective Action ICE Formation Pattern Extremely Thin at Evaporator OutletNormal Ice Formation No Ice Formation Extremely Thin at Evaporator InletSafety Limits Safety Limit IndicationAnalyzing Why Safety Limits May Stop the Ice Machine Possible Cause Check/Correct Safety Limit NotesSection Refrigeration System Analyzing Discharge Pressure During Freeze or Harvest Cycle ProcedureFreeze Cycle Discharge Pressure High Checklist Freeze Cycle Discharge Pressure Low ChecklistAnalyzing Suction Pressure During Freeze Cycle Step Example Using SY1004A Model Ice MachineFreeze Cycle Suction Pressure Low Checklist Freeze Cycle Suction Pressure High ChecklistHarvest Valve Temperature Check General Harvest Valve AnalysisFindings Comments Discharge Line Temperature Analysis General Column 3 TXV Flooding Final AnalysisColumn 1 Harvest Valve Leaking Column 2 LOW CHARGE/TXV StarvingModels Dual Expansion Valve Ice Machine Model Number Refrigeration System Operational Analysis TablesHigh Pressure CUT-OUT Hpco Control Operating Pressures S1800 SeriesSelf-Contained Water-Cooled Cycle Times Hour Ice ProductionConnections SELF-CONTAINED RECOVERY/EVACUATIONCharging Connections Self-Contained Charging ProceduresDetermining Severity Of Contamination System Contamination CLEAN-UPSevere System Contamination Cleanup Procedure Mild System Contamination Cleanup ProcedureSection Refrigeration System 10. Using Pinch-Off Tool Drier End Part Model Connection Size Number FILTER-DRIERSTotal System Refrigerant Charges Series Version Charge S1800M48 oz Recycle RecoverNew Product Specifications Refrigerant DefinitionsReclaimed Refrigerant Recovered or Recycled RefrigerantRefrigerant RE-USE Policy New RefrigerantHFC Refrigerant Questions and Answers This page Intentionally Left Blank Page Attend a Manitowoc Factory Service School
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