Cornelius R-404A REFRIGERANT Defrost Systems, Manual Defrost System, Automatic Defrost System

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Transparent faceplate, attached to the front of each freeze cylinder, includes a self-closing dispensing valve and a spring-loaded relief valve that protects freeze cylinder from accidental over pressure. The relief valve is also used to bleed CO2 gas pressure from the freeze cylinder to atmosphere when filling the cylinder with product. Electronic sens- ing on each freeze cylinder motor provides a means of adjusting viscosity (consistency) of the dispensed product to suit customer preference.

FIGURE 1. FCB OVERCOUNTER POST-MIX

DISPENSER

DEFROST SYSTEMS

The Unit is equipped with both manual and automatic hot-gas defrost systems. The automatic defrost system may be programmed into the Unit to occur up to nine different times a day with a minimum of two hours between defrost time settings or the system may be completely turned off.

MANUAL DEFROST SYSTEM

The Manual hot-gas defrost system may be activated at any time by pressing the ‘‘DEFROST’’ switch on front of the Unit. Refrigeration compressor will operate for a short time, then both freeze cylinders will go into defrost for approxi- mately 60 seconds. At the end of the manual defrost cycle, the Unit will return to normal operation. Manual defrost may be cancelled at any time by pressing the ‘‘CANCEL DEFROST’’ switch.

AUTOMATIC DEFROST SYSTEM

The automatic hot-gas defrost system may be programmed into the Unit to occur up to nine different times a day with a minimum of two hours between defrost settings. At the start of each automatic defrost cycle, refrigeration compres- sor will operate for 30 seconds to pump freon out of the freeze cylinders evaporator coils.

After freon has been pumped out of the freeze cylinders evaporator coils, No. 1 freeze cylinders only will go into de- frost cycle for approximately 7 minutes, then will return to normal operation. This ends the automatic defrost cycle of the No. 1 freeze cylinder. No. 2 freeze cylinder will defrost 30 minutes after the start of No. 1 freeze cylinder. The next automatic defrost cycle will occur according to the time programmed into the Unit. Automatic defrost may be can- celled at any time by pressing the ‘‘CANCEL DEFROST’’ switch.

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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