Manitowoc Ice S1800 Maintenance Section Guardian, Installation, Sachet Replacement Frequency

Page 26

Maintenance

Section 4

 

 

Guardian™

Slime is a leading cause of ice machine breakdowns and biological growth is a health concern. The Guardian™ system releases chlorine dioxide on a controlled basis to inhibit the growth of bacteria and fungi that form slime and cause malodors in the food zone of ice machines. The Guardian™ will not control mineral or other water borne buildup. Your water quality will determine the length of time before mineral buildup affects ice machine performance. Mineral buildup must be removed as often as necessary to ensure trouble-free operation of the ice machine.

INSTALLATION

If the Guardian system has been ordered, install the sachet holder in the inside of the front panel.

1.Loosen the left screw and open the left front door. The right front panel does not need to be removed.

Loosen

Screw

Screw Location

2.Inside the front panel there are two thumbscrew holes covered by stickers, pierce the sticker with a screwdriver.

3.Attach the sachet holder to the front panel by inserting the thumbsrews through the holes in the sachet holder and tightening the thumbscrews

4.Remove the new sachet packet from foil package and install into holder. Removing the foil package allows moisture in the air to activate the sachet contents.

5.Close the left front door and tighten the screw.

Inside Left

Front Door

SACHET REPLACEMENT FREQUENCY

Sachet packet(s) require replacement every thirty (30) days or whenever they come in direct contact with water. Refer to chart below for requirements.

Ice Machine

Sachet Use

S1800M

1 or 2*

*Although one sachet is recommended, extreme conditions may necessitate using two sachet packets.

Guardian™ sachet packets are available through your local Manitowoc ice machine dealer.

SACHET REPLACEMENT PROCEDURE

1.Loosen the left screw and open the left front door. The right front panel does not need to be removed.

2.Remove and discard spent Guardian sachet packets.

3.Remove the new sachet packet from foil package and install into holder. Removing the foil package allows moisture in the air to activate the sachet contents.

4.Close the left front door and tighten the screw.

5.Discard the use sachet packet in the trash.

CLEAN UP PROCEDURE FOR DAMAGED PACKET

1.Remove all ice from bin/dispenser and discard.

2.Initiate a cleaning and sanitizing sequence on the ice machine (see next pages).

3.Clean the bin/dispenser. Flush the drain thoroughly to prevent future drain blockage.

4.Sanitize the bin/dispenser.

5.Install a replacement sachet packet and reinstall all panels.

Guardian

Guardian™ Location

4-2

Part Number 80-1634-3

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Contents Service Manual Read These Before Proceeding Personal Injury PotentialTable of Contents Section Before Calling For Service Table of Contents Section Ice Machine OperationSection Maintenance Table of Contents Section Electrical System Section Refrigeration SystemTable of Contents Ice Cube Sizes How to Read a Model NumberModel Numbers Self-Contained Water-CooledGeneral Information Section Accessories Section General Information Model/Serial Number Location Model/Serial Number LocationWarranty Coverage Electrical and AuCS Dimensions Ice Machine DimensionsWidth, Depth, and Height Dimensions GeneralS1800M Water-Cooled Installation Instructions Section Location of Ice MachineIce Machine Heat of Rejection Series Heat of Rejection Ice Machine Air ConditioningMinimum Circuit Ampacity Section Installation Instructions Electrical ServiceVoltage Electrical RequirementsSelf Contained ICE Machine 208-230/3/60 For United Kingdom OnlySelf Contained ICE Machine 115/1/60 or 208-230/1/60 Self Contained ICE Machine 230/1/50Water Inlet Lines Cooling Tower ApplicationsWater Supply Drain ConnectionsWater Supply and Drain Line SIZING/CONNECTIONS Installation Instructions SectionTypical Water Supply Drain Installation CondenserSection Installation Instructions Installation Check List AuCS Automatic Cleaning System Potential Personal Injury SituationSection Ice Machine Operation Component IdentificationIce Machine Operation Section Sequence Of Operation Initial START-UP or START-UP After Automatic SHUT-OFFHarvest Safety TimersHarvest Sequence 5. Water Purge Automatic SHUT-OFF 7. Automatic Shut-OffICE Thickness Check Ice Machine Operation Section Operational ChecksWater Level Ice Thickness CheckWater Purge Adjustment Harvest Sequence Water PurgeIce Machine Operation Section This page Intentionally Left BlankWater-Cooled Condenser Water Regulating Valve Exterior CleaningIce Machine Inspection AlphaSan→Sachet Replacement Frequency Maintenance Section GuardianInstallation Sachet Replacement ProcedureModel Amount of Cleaner Section Maintenance Interior Cleaning and SanitizingCleaning Procedure StepSolution Type Water Mixed With Sanitizer Maintenance SectionSanitizing Procedure Removal of Parts for CLEANING/SANITIZING Solution Type Water Mixed WithIce Thickness Probe Removal Water CurtainWater Curtain Removal Ice Thickness Probe Water Distribution Tube Removal Water Distribution TubeWater Trough Water Pump Removal Water Level ProbeWater Pump Dump Valve Disassembly Water Dump ValveEvaporator Tray Removal Drain Line Check ValveWater Inlet Valve SELF-CONTAINED WATER-COOLED ICE Machines Maintenance Section Removal from Service/WinterizationPry Open the Water Regulating Valve AUCS→ Accessory Checklist Problem Possible Cause To CorrectBefore Calling For Service Section Safety Limit FeatureSELF-CONTAINED WATER-COOLED Models Energized Parts ChartsSection Electrical System Water Purge SELF-CONTAINED ModelsInitial Start-Up or Start-Up After Automatic Shut-Off Self-Contained Water PurgeSelf-Contained Refrigeration System Start-Up Refrigeration System Start Up 5 Seconds Toggle SwitchRefrigeration System START-UP PRE-CHILL Electrical System SectionFreeze Sequence Self-Contained Pre-Chill Self-Contained ModelsSelf-Contained Freeze Self-Contained Models Toggle Switch Bin Switch Control Board RelaysFreeze Harvest Sequence Harvest Self-Contained Automatic Shut-Off Automatic Shut-OffAutomatic SHUT-OFF Section Electrical System Wiring Diagrams Wiring Diagram LegendS1800 SELF-CONTAINED 1 Phase Control BoardS1800 SELF-CONTAINED 3 Phase BIN Switch SpecificationsCheck Procedure Main FuseContinuity Test SymptomsDiagnostic Aids Water Curtain Removal NotesCheck Motor Windings to Ground Compressor Electrical DiagnosticsCheck Resistance Ohm Values Determine if the Compressor is SeizedCompressor Start Sequence Ptcr DiagnosticsWhat is a PTCR? Model Automatic Shut-Off and Restart Troubleshooting PTCR’sWHY a Good Ptcr MAY Fail To Start the Compressor During Start-Up First .25 1.0 SecondsModel Manitowoc Cera-Mite Room Checking the PtcrManitowoc Ptcr Part NumberRelay Diagnosing Start ComponentsCapacitor Relay Operation CheckICE/OFF/CLEAN Toggle Switch Switch Setting Terminals Ohm ReadingElectronic Control Board Control BoardSafety Limits InputsHOW the Probe Works Freeze Time LOCK-IN FeatureIce Thickness Probe Cleaning Harvest LightDiagnosing ICE Thickness Control Circuitry Monitoring of Harvest Light CorrectionWater Level Probe Light Water Inlet Valve Safety SHUT-OFFElectrical System Section Water Level Control Circuitry Freeze Cycle CircuitryWait until the freeze cycle starts Problem Water Trough Overfilling During Freeze CycleDiagnosing Water Level Control Circuitry On or OFF Step Check Self Contained 1 Phase with Terminal Board SELF-CONTAINED Water -COOLED Models Freeze Cycle Refrigeration SequenceRefrigeration System Section S1800 SELF-CONTAINED Tubing Schematic General ICE Production Check Before Beginning ServiceWeights are in pounds Times are in minutesPossible Problem Corrective Action INSTALLATION/VISUAL Inspection ChecklistWater System Checklist Normal Ice Formation ICE Formation PatternExtremely Thin at Evaporator Outlet Extremely Thin at Evaporator Inlet No Ice FormationAnalyzing Why Safety Limits May Stop the Ice Machine Safety LimitsSafety Limit Indication Safety Limit Notes Possible Cause Check/CorrectSection Refrigeration System Freeze Cycle Discharge Pressure Low Checklist ProcedureFreeze Cycle Discharge Pressure High Checklist Analyzing Discharge Pressure During Freeze or Harvest CycleStep Example Using SY1004A Model Ice Machine Analyzing Suction Pressure During Freeze CycleFreeze Cycle Suction Pressure High Checklist Freeze Cycle Suction Pressure Low ChecklistFindings Comments Harvest Valve Temperature Check GeneralHarvest Valve Analysis Discharge Line Temperature Analysis General Column 2 LOW CHARGE/TXV Starving Final AnalysisColumn 1 Harvest Valve Leaking Column 3 TXV FloodingRefrigeration System Operational Analysis Tables Models Dual Expansion Valve Ice Machine Model NumberHigh Pressure CUT-OUT Hpco Control Hour Ice Production S1800 SeriesSelf-Contained Water-Cooled Cycle Times Operating PressuresSELF-CONTAINED RECOVERY/EVACUATION ConnectionsSelf-Contained Charging Procedures Charging ConnectionsSystem Contamination CLEAN-UP Determining Severity Of ContaminationMild System Contamination Cleanup Procedure Severe System Contamination Cleanup ProcedureSection Refrigeration System 10. Using Pinch-Off Tool FILTER-DRIERS Drier End Part Model Connection Size Number48 oz Total System Refrigerant ChargesSeries Version Charge S1800M Refrigerant Definitions RecoverNew Product Specifications RecycleNew Refrigerant Recovered or Recycled RefrigerantRefrigerant RE-USE Policy Reclaimed RefrigerantHFC Refrigerant Questions and Answers This page Intentionally Left Blank Page Attend a Manitowoc Factory Service School
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