Cornelius R-404A REFRIGERANT service manual 312028000

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19.Press ‘‘AUTO BLEND 1’’ switch to fill No. 1 product blender tank with sanitizing solution. Carbonator water pump will start and begin pumping carbonated water into product blender tank, which will dilute sanitizing solution also entering tank.

20.After carbonator water pump cycles off, completely fill No. 1 freeze cylinder with sanitizing solution by re- peatedly pulling and releasing relief valve knob on freeze cylinder faceplate and until sanitizing solution comes out of relief valve port. Open dispensing valve until sanitizing solution flows from valve, then close valve. Open product blender tank sample valve until sanitizing solution flows from valve, then close valve.

21.Press ‘‘WASH 1’’ switch to start No. 1 freeze cylinder beater. Allow sanitizing solution to remain in freeze cylinder for no less than 10 and no more than 15 minutes (max) contact time.

22.When sanitizing solution contact time has elapsed, press ‘‘OFF 1’’ switch to stop No. 1 freeze cylinder beater.

23.Hold appropriate container under dispensing valve and dispense until soft drink tank containing sanitizing solution is empty and all sanitizing solution has been dispensed from freeze cylinder. As sanitizing solution level lowers in freeze cylinder, partially close valve to avoid spurting. Dispose of sanitizing solution in a safe way.

24.Place waste container under No. 1 system product sample valve. Slowly open valve and purge remaining sanitizing solution out of product blender tank, then close valve.

25.Disconnect empty sanitizing solution tank from No. 1 syrup system.

26.Connect soft drink tank containing syrup into No. 1 syrup system.

WARNING: Flush residual sanitizing solution from syrup system as instructed. Residual solution left in system could create a health hazard.

27.Press ‘‘FILL 1’’ switch to fill No. 1 syrup system syrup float switch with syrup. ‘‘SYRUP 1’’ fault message on message display will go out indicating syrup float switch has been filled with syrup.

28.Press ‘‘AUTO BLEND 1’’ switch to fill No. 1 product blender tank with product. Carbonator water pump will start and begin pumping carbonated water into product blender tank along with syrup to make product.

29.After carbonator water pump cycles off, completely fill No. 1 freeze cylinder with product by repeatedly pull- ing and releasing faceplate relief valve and until product comes out of relief valve port. Open dispensing valve until product flows from valve, then close valve. Open No. 1 system product sample valve until prod- uct flows from valve, then close valve.

30.Press ‘‘WASH 1’’ switch to start No. 1 freeze cylinder beater. Allow beater to operate for five minutes, then press ‘‘OFF 1’’ switch to stop beater.

31.Disconnect soft drink tank containing syrup from No. 1 syrup system.

32.Connect clean empty soft drink tank into No. 1 syrup system.

33.Hold appropriate container under dispensing valve and dispense until all product has been dispensed from freeze cylinder. As product level lowers in freeze cylinder, partially close valve to avoid spurting.

34.Place waste container under No. 1 system product sample valve. Slowly open valve and purge remaining product out of product blender tank.

35.Disconnect empty soft drink tank from No. 1 syrup system and install tank containing syrup.

36.Press ‘‘FILL 1’’ switch to fill No. 1 syrup system syrup float switch with syrup. ‘‘SYRUP 1’’ fault message on message display will go out indicating syrup float switch has been filled with syrup.

37.Press ‘‘AUTO BLEND 1’’ switch to fill No. 1 product blender tank with product. Carbonator water pump will start and begin pumping carbonated water into product blender tank along with syrup to make product.

CAUTION: Do not relieve freeze cylinder pressure too fast or product will foam excessively in cylinder and lose carbonation.

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Contents To the Installer Table of Contents Table of Contents cont’d Water Strainer Screen and Double Liquid Check Valve Programming Main Menu Selections Onto Message DisplayVIS Read Actual Viscosity Readout of Product Preparing Unit for SHIPPING, STORING, or RelocatingTroubleshooting Control Panel Switches and Fault Product Carbonation AdjustmentDaily Cleaning of Unit Sanitizing Syrup Systems ‘‘ERROR 1’’ or ‘‘ERROR 2’’ Fault Message Goes on DuringFreeze Cylinder Automatic Defrost Cycle does not Defrost Cycle does not Cancel After Pressing ‘‘CANCELList of Figures Table of Contents cont’d General Description Unit DescriptionTheory of Operation AccessoriesService Tools Generic Flavor TabsManual Defrost System Defrost SystemsAutomatic Defrost System ‘‘SLEEP’’ Sleep Time ‘‘WAKE UP’’ Wake UP TimeFlow Diagram This page Left Blank Intentionally Unpacking and Inspection Identification of LOOSE-SHIPPED PartsSelecting Location Electrical Power RequirementsHZ Unit Installing Drip Tray Supports Item 7 and Item Installing UnitInstalling Leveling Legs Installing Drip Tray Drain Hose KIT ItemInstalling Primary CO2 Regulator Assembly on CO2 Cylinder Connecting CO2 Source Line to Unit CO2 Inlet LineConnecting Electrical Power Circuit to the Unit Connecting City Plain Water Source Line to UnitElectrical BOX Adjusting Product Blender Tanks Secondary CO2 Turning on Electrical Power to UnitAdjusting Primary CO2 Regulator Adjusting Carbonator Secondary CO2 RegulatorHidden Security Switch Message Display Control Panel ASS’YFilling Freeze Cylinders with Product Checking Unit for SYRUP, CO2, or Plain Water LeaksAdjusting Beater Motor Current Either Side Placing Unit in Operating LocationSetting Clock Time of DAY Programming Main Menu Selection Onto Message DisplayMenu Selections Programming ‘‘DEFROST’’ Automatic Settings Into UnitMain Menu Selections DIP Switch Functions Switch FunctionProgramming ‘‘SLEEP’’ Sleep Time Into Unit Programming ‘‘WAKE UP’’ Wake UP Time Into Unit Programming Point of Sale Message DisplayAdjusting VIS SET Product Viscosity of Dispensed Product Master and Relay Circuit Board ‘‘VOLTAGE’’ Displayed Voltage Readout 312028000 Brix Totals Menu Commands DescriptionSyrup Minutes Side Gallons = a X Syrup MinutesDisplayed Error Conditions Programming Proper Refrigerant Type Into Unit ElectronicsDisplayed Error Conditions Control Panel ASS’Y Switches and Displayed Messages Control Panel ASS’Y SwitchesControl Panel Assembly Display Messages ‘‘SECURITY SWITCH.’’Freeze Cylinders Manual or Automatic Defrost Systems Product Sample Valves ‘‘SLEEP’’ Sleep Time OperationFaceplate Relief Valves Product Shutoff ValvesDispensed Product Conditions Syrup Flow RegulatorsDispensing Valves ‘‘OVERRUN’’, AS Applied to Frozen Carbonated BeveragesOperating Unit Operating CharacteristicsReplenishing Syrup Supply Product Flavor Change Cleaning and SanitizingCleaning Condenser Coil Checking CO2 SupplyAdjustments Adjusting ‘‘VIS SET’’ Product Viscosity of Dispensed Product Cleaning CO2 GAS Check Valves TOP Panel Preparing Unit for SHIPPING, STORING, or RelocatingPeriodic Inspection Back PanelOpening Front Access Door Opening and Closing Front Access DoorFront Access Panel Closing Front Access DoorOperating Controls Unit Internal Components SELF-CLOSING Dispensing Valve 312028000 Adjusting Plain Water Pressure Regulator Adjusting Carbonated Water Flow RateFreeze 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 Daily Cleaning of Unit Product Carbonation AdjustmentSanitizing Syrup Systems To disconnect soft drink tank from Unit syrup system 312028000 Yearly or After Water System Disruption Servicing Carbonator Water Pump Water Strainer ScreenLiquid Check Valve Assembly Servicing Carbonator Water Pump Double Liquid Check ValveReplenishing Syrup Supply Replenishing CO2 Supply Service and Maintenance SectionSyrup Flavor Change Water Strainer Screen and Double Liquid Check Valve Serviced Replacing Freeze Cylinder Beater Drive MotorAdjusting Carbonator Tank Liquid Level Ments in Small IncrementsCarbonator Liquid Level Control Switch Adjustment Refrigeration Flow Diagram Wiring Diagram This page Left Blank Intentionally Troubleshooting Control Panel Switches and Fault Messages ALL Fault Messages not a Control Panel SwitchesPoorly Illuminated Display ONE or More Fault Cannot be Deactivated‘‘H2O OUT’’ Fault Message ALL Fault Message not‘‘CO2 OUT’’ Fault Message Fault Message Goes onTroubleshooting Product Blender Tanks and Carbonator Troubleshooting Dispensed Product Excessively Frozen ProductConsistency Varies FREEZE-UPIllustrated Parts Breakdown Unit Part NumbersOvercounter 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