Cornelius R-404A REFRIGERANT service manual Water Strainer Screen and Double Liquid Check Valve

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O-RING (P/N 315349000)

SCREEN RETAINER

SCREEN (P/N 315348000)

WATER PUMP MOTOR

WATER PUMP

WATER PRESSURE SWITCH

CARBONATED WATER

FLOW REGULATOR (2)

SYRUP FLOW

REGULATOR (2)

LIQUID CHECK

VALVE (4)

DOUBLE LIQUID

CHECK VALVE ASS’Y

WHITE TAPERED

GASKET

WATER PRESSURE

REGULATOR

CARBONATED WATER

SOLENOID VALVE (2)

SYRUP SOLENOID

VALVE (2)

SYRUP SOLD-OUT

FLOAT SWITCH (2)

FIGURE 12. WATER STRAINER SCREEN AND DOUBLE LIQUID CHECK VALVE

312028000

56

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Contents To the Installer Table of Contents Table of Contents cont’d Preparing Unit for SHIPPING, STORING, or Relocating Programming Main Menu Selections Onto Message DisplayVIS Read Actual Viscosity Readout of Product Water Strainer Screen and Double Liquid Check Valve‘‘ERROR 1’’ or ‘‘ERROR 2’’ Fault Message Goes on During Product Carbonation AdjustmentDaily Cleaning of Unit Sanitizing Syrup Systems Troubleshooting Control Panel Switches and FaultDefrost Cycle does not Cancel After Pressing ‘‘CANCEL Freeze Cylinder Automatic Defrost Cycle does notList of Figures Table of Contents cont’d Unit Description General DescriptionGeneric Flavor Tabs AccessoriesService Tools Theory of OperationDefrost Systems Manual Defrost SystemAutomatic Defrost System ‘‘WAKE UP’’ Wake UP Time ‘‘SLEEP’’ Sleep TimeFlow Diagram This page Left Blank Intentionally Identification of LOOSE-SHIPPED Parts Unpacking and InspectionElectrical Power Requirements Selecting LocationHZ Unit Installing Drip Tray Drain Hose KIT Item Installing UnitInstalling Leveling Legs Installing Drip Tray Supports Item 7 and ItemConnecting CO2 Source Line to Unit CO2 Inlet Line Installing Primary CO2 Regulator Assembly on CO2 CylinderConnecting City Plain Water Source Line to Unit Connecting Electrical Power Circuit to the UnitElectrical BOX Adjusting Carbonator Secondary CO2 Regulator Turning on Electrical Power to UnitAdjusting Primary CO2 Regulator Adjusting Product Blender Tanks Secondary CO2Control Panel ASS’Y Hidden Security Switch Message DisplayChecking Unit for SYRUP, CO2, or Plain Water Leaks Filling Freeze Cylinders with ProductPlacing Unit in Operating Location Adjusting Beater Motor Current Either SideProgramming Main Menu Selection Onto Message Display Setting Clock Time of DAYProgramming ‘‘DEFROST’’ Automatic Settings Into Unit Menu SelectionsMain Menu Selections Switch Function DIP Switch FunctionsProgramming ‘‘SLEEP’’ Sleep Time Into Unit Programming Point of Sale Message Display Programming ‘‘WAKE UP’’ Wake UP Time Into UnitAdjusting VIS SET Product Viscosity of Dispensed Product Master and Relay Circuit Board ‘‘VOLTAGE’’ Displayed Voltage Readout 312028000 Gallons = a X Syrup Minutes Totals Menu Commands DescriptionSyrup Minutes Side BrixProgramming Proper Refrigerant Type Into Unit Electronics Displayed Error ConditionsDisplayed Error Conditions Control Panel ASS’Y Switches Control Panel ASS’Y Switches and Displayed Messages‘‘SECURITY SWITCH.’’ Control Panel Assembly Display MessagesFreeze Cylinders Manual or Automatic Defrost Systems Product Shutoff Valves ‘‘SLEEP’’ Sleep Time OperationFaceplate Relief Valves Product Sample Valves‘‘OVERRUN’’, AS Applied to Frozen Carbonated Beverages Syrup Flow RegulatorsDispensing Valves Dispensed Product ConditionsOperating Characteristics Operating UnitReplenishing Syrup Supply Checking CO2 Supply Cleaning and SanitizingCleaning Condenser Coil Product Flavor ChangeAdjustments Adjusting ‘‘VIS SET’’ Product Viscosity of Dispensed Product Cleaning CO2 GAS Check Valves Back Panel Preparing Unit for SHIPPING, STORING, or RelocatingPeriodic Inspection TOP PanelClosing Front Access Door Opening and Closing Front Access DoorFront Access Panel Opening Front Access DoorOperating Controls Unit Internal Components SELF-CLOSING Dispensing Valve 312028000 Adjusting Carbonated Water Flow Rate Adjusting Plain Water Pressure RegulatorFreeze Cylinder Cutaway View Servicing Beater Motor Drive SHAFT/SEAL Assembly Beaters and Scraper Blades Installation Adjusting CO2 Regulators Adjusting Brix WATER-TO-SYRUP ‘‘RATIO’’ of Dispensed Product Product Carbonation Adjustment Daily Cleaning of UnitSanitizing Syrup Systems To disconnect soft drink tank from Unit syrup system 312028000 Servicing Carbonator Water Pump Water Strainer Screen Yearly or After Water System DisruptionServicing Carbonator Water Pump Double Liquid Check Valve Liquid Check Valve AssemblyReplenishing Syrup Supply Service and Maintenance Section Replenishing CO2 SupplySyrup Flavor Change Water Strainer Screen and Double Liquid Check Valve Replacing Freeze Cylinder Beater Drive Motor ServicedMents in Small Increments Adjusting Carbonator Tank Liquid LevelCarbonator Liquid Level Control Switch Adjustment Refrigeration Flow Diagram Wiring Diagram This page Left Blank Intentionally Troubleshooting Control Panel Switches and Fault Messages Cannot be Deactivated Control Panel SwitchesPoorly Illuminated Display ONE or More Fault ALL Fault Messages not aFault Message Goes on ALL Fault Message not‘‘CO2 OUT’’ Fault Message ‘‘H2O OUT’’ Fault MessageTroubleshooting Product Blender Tanks and Carbonator Troubleshooting Dispensed Product FREEZE-UP Frozen ProductConsistency Varies ExcessivelyUnit Part Numbers Illustrated Parts BreakdownOvercounter FCB POST-MIX Dispenser FCB POST-MIX Dispenser FCB POST-MIX Dispenser cont’d Name Secondary CO2 Regulator Components Secondary CO2 Regulator ASS’Y CO2 Regulator Assembly Blender and Tubing Components Tubing Assembly Carb Water Tubing Assembly Water Solenoid to Blender Solenoid Valve Assembly Blender Components Control BOX and Display Panel Components Faceplate Assembly Dispensing Valve Assembly Carbonator Components Carbonator Tank and Linkage Assembly Pump and Motor ASS’Y Beater Motor Drive SHAFT/SEAL ASS’Y Warranty This page Left Blank Intentionally One Cornelius Place Anoka, Minnesota 612 800