Cornelius R-404A REFRIGERANT service manual Syrup Flow Regulators, Dispensing Valves, Drawing

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SYRUP FLOW REGULATORS

The syrup flow regulators located behind the front access door (see Figure 2 and Figure 12), are adjustable regulators that control syrup flow rate to the product blender tanks for desired BRIX of dispensed product. Adjust syrup flow regulators for desired BRIX as instructed in the SERVICE AND MAINTENANCE section.

DISPENSING VALVES

Self-closing dispensing valves (see Figure 5)), located on faceplates on front of Unit, are operated one at a time or simultaneously to deliver product to the customer.

DISPENSED PRODUCT CONDITIONS

‘‘OVERRUN’’, AS APPLIED TO FROZEN CARBONATED BEVERAGES

Overrun Defined.

Overrun is product expansion that takes place in the frozen carbonated drink. It is caused primarily by CO2 gas breakout and secondary by freezing.

Overrun is a Variable.

The percentage or degree of overrun depends on a number of factors. The specific syrup, BRIX, low dispensing volume, carbonation level in liquid product, and freezing, all affect overrun. After these factors have been considered, desired viscosity (product consistency) adjustment may be made on the Unit. The viscosity adjust- ment adjusts product texture from very wet to light.

Specific Product Ingredients Affect Overrun.

Each syrup has its own specific formulation of makeup. Baume, an important ingredient factor, may fall within an extremely wide range. Fruit flavors contain citric acids that colas do not. Colas also differ in ingredients from one brand to another. Each product formulation has its own peculiarities regarding the way the product will absorb carbonation and the way it will release carbonation.

BRIX Affects Overrun.

Sugar in carbonated drinks is like anti-freeze in water. The higher the BRIX in a product, the greater resistance the product has to freezing. Conversely, in products with lower BRIX, freezing takes place at higher temperatures than for high-BRIX products. Thus, BRIX affects overrun because the amount of sugar in a drink has a direct bearing on the product’s freezing characteristics.

DRAWING 1

DRAWING 2

DRAWING 3

Low Dispensing Volume Affects Overrun.

When Unit sits idle for a period of time and no drinks are dispensed, CO2 gas in the system takes a ‘‘set’’. When first few drinks are drawn off after an idle period, CO2 gas has less tendency to break out as drink is dispensed.

The result is these casual drinks have less overrun than drinks dispensed during peak￿use periods.

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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 DuringList of Figures Defrost Cycle does not Cancel After Pressing ‘‘CANCELFreeze Cylinder Automatic Defrost Cycle does not Table of Contents cont’d General Description Unit DescriptionTheory of Operation AccessoriesService Tools Generic Flavor TabsAutomatic Defrost System Defrost SystemsManual Defrost System ‘‘SLEEP’’ Sleep Time ‘‘WAKE UP’’ Wake UP TimeFlow Diagram This page Left Blank Intentionally Unpacking and Inspection Identification of LOOSE-SHIPPED PartsHZ Unit Electrical Power RequirementsSelecting Location 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 LineElectrical BOX Connecting City Plain Water Source Line to UnitConnecting Electrical Power Circuit to the Unit 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 DisplayMain Menu Selections Programming ‘‘DEFROST’’ Automatic Settings Into UnitMenu Selections Programming ‘‘SLEEP’’ Sleep Time Into Unit Switch FunctionDIP Switch Functions 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 BeveragesReplenishing Syrup Supply Operating CharacteristicsOperating Unit 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 Sanitizing Syrup Systems Product Carbonation AdjustmentDaily Cleaning of Unit 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 Syrup Flavor Change Service and Maintenance SectionReplenishing CO2 Supply 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
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