Refrigeration Flow Diagram | Cornelius R-404A REFRIGERANT specification

ELECTRONIC

EXPANSION VALVE (2)

HOT-GAS DEFROST

SOLENOID VALVE

ASS’Y (2)

CONDENSER COIL

FAN ASS’Y

FREEZE CYLINDER (2)

EVAPORATOR

STRAINER/DRYER

COMPRESSOR

RECEIVER TANK

ACCUMULATOR

FIGURE 15. REFRIGERATION FLOW DIAGRAM

312028000

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Cornelius R-404A REFRIGERANT service manual Refrigeration Flow Diagram

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 Fault Freeze Cylinder Automatic Defrost Cycle does not Defrost Cycle does not Cancel After Pressing ‘‘CANCELList of Figures Table of Contents cont’d Unit Description General Description Generic Flavor Tabs AccessoriesService Tools Theory of Operation Manual Defrost System Defrost SystemsAutomatic Defrost System ‘‘WAKE UP’’ Wake UP Time ‘‘SLEEP’’ Sleep Time Flow Diagram This page Left Blank Intentionally Identification of LOOSE-SHIPPED Parts Unpacking and Inspection Selecting Location Electrical Power RequirementsHZ Unit Installing Drip Tray Drain Hose KIT Item Installing UnitInstalling Leveling Legs Installing Drip Tray Supports Item 7 and Item Connecting CO2 Source Line to Unit CO2 Inlet Line Installing Primary CO2 Regulator Assembly on CO2 Cylinder Connecting Electrical Power Circuit to the Unit Connecting City Plain Water Source Line to UnitElectrical BOX Adjusting Carbonator Secondary CO2 Regulator Turning on Electrical Power to UnitAdjusting Primary CO2 Regulator Adjusting Product Blender Tanks Secondary CO2 Control Panel ASS’Y Hidden Security Switch Message Display Checking Unit for SYRUP, CO2, or Plain Water Leaks Filling Freeze Cylinders with Product Placing Unit in Operating Location Adjusting Beater Motor Current Either Side Programming Main Menu Selection Onto Message Display Setting Clock Time of DAY Menu Selections Programming ‘‘DEFROST’’ Automatic Settings Into UnitMain Menu Selections DIP Switch Functions Switch FunctionProgramming ‘‘SLEEP’’ Sleep Time Into Unit Programming Point of Sale Message Display Programming ‘‘WAKE UP’’ Wake UP Time Into Unit Adjusting 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 Brix Programming Proper Refrigerant Type Into Unit Electronics Displayed Error Conditions Displayed Error Conditions Control Panel ASS’Y Switches Control Panel ASS’Y Switches and Displayed Messages ‘‘SECURITY SWITCH.’’ Control Panel Assembly Display Messages Freeze 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 Conditions Operating Unit Operating CharacteristicsReplenishing Syrup Supply Checking CO2 Supply Cleaning and SanitizingCleaning Condenser Coil Product Flavor Change Adjustments Adjusting ‘‘VIS SET’’ Product Viscosity of Dispensed Product Cleaning CO2 GAS Check Valves Back Panel Preparing Unit for SHIPPING, STORING, or RelocatingPeriodic Inspection TOP Panel Closing Front Access Door Opening and Closing Front Access DoorFront Access Panel Opening Front Access Door Operating Controls Unit Internal Components SELF-CLOSING Dispensing Valve 312028000 Adjusting Carbonated Water Flow Rate Adjusting Plain Water Pressure Regulator Freeze 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 Servicing Carbonator Water Pump Water Strainer Screen Yearly or After Water System Disruption Servicing Carbonator Water Pump Double Liquid Check Valve Liquid Check Valve Assembly Replenishing Syrup Supply Replenishing CO2 Supply Service and Maintenance SectionSyrup Flavor Change Water Strainer Screen and Double Liquid Check Valve Replacing Freeze Cylinder Beater Drive Motor Serviced Ments in Small Increments Adjusting Carbonator Tank Liquid Level Carbonator 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 a Fault Message Goes on ALL Fault Message not‘‘CO2 OUT’’ Fault Message ‘‘H2O OUT’’ Fault Message Troubleshooting Product Blender Tanks and Carbonator Troubleshooting Dispensed Product FREEZE-UP Frozen ProductConsistency Varies Excessively Unit Part Numbers Illustrated Parts Breakdown Overcounter 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