Cornelius R-134A Unit Operation, Adjustments, Replenishing CO2 Supply, Replenishing Syrup Supply

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2.Make sure there is a sufficient syrup supply. If not, replenish the syrup supply as instructed in SERVICE AND MAINTENANCE section in this manual.

3.Make sure drip tray and cup rest are clean and are properly installed on the Unit.

UNIT OPERATION

1.Make sure dispensing valves keyed lock-out switch on left side of the Unit is in the “ON”(vertical) position.

2.Press cup or glass against the dispensing valve lever and dispense until the cup or glass is full of product, then release the lever.

3.If water only is desired, hold cup or glass under the dispensing valve with lever on its side, then actuate the lever to dispense water.

ADJUSTMENTS

ADJUSTING CO2 REGULATORS

The CO2 regulators should be checked periodically for proper pressure settings and be adjusted if necessary. Refer to SERVICE AND MAINTENANCE section in this manual for adjustment instructions.

ADJUSTING DISPENSING VALVE WATER FLOW RATE

The water flow rate of the dispensing valves may be adjusted. Refer to SERVICE AND MAINTENANCE section in this manual for adjustment instructions.

ADJUSTING WATER-TO-SYRUP “RATIO” OF DISPENSED PRODUCT

The Water-to-Syrup “Ratio”(Brix) of the dispensed product should be checked periodically and adjusted if necessary. Refer to SERVICE AND MAINTENANCE section in this manual for adjustment instructions.

REPLENISHING CO2 SUPPLY

WARNING: CO2 displaces oxygen. Strict attention must be observed in the prevention of CO2 (carbon dioxide) gas leaks in the entire CO2 and soft drink system. If a CO2 gas leak is suspected, particularly in a small area, immediately ventilate the contaminated area before

attempting to repair the leak. Personnel exposed to high concentration of CO2 gas will experience tremors which are followed rapidly by loss of consciousness and suffocation.

The CO2 supply should be checked daily and replenished if necessary. Refer to SERVICE AND MAINTE- NANCE section in this manual for replenishing procedure.

REPLENISHING SYRUP SUPPLY

The syrup supply should be checked daily and replenished if necessary. Refer to SERVICE AND MAINTE- NANCE section in this manual for replenishing instructions.

CLEANING AND SANITIZING

DAILY CLEANING OF UNIT

The daily cleaning procedure for the Unit should be performed at the end of the daily operation. Refer to SER- VICE AND MAINTENANCE section in this manual for daily cleaning procedure.

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Contents This Document Contains Important Information Installation/Service ManualTable of Contents Table of Contents cont’d Compressor Operates Continuously but does not Form Troubleshooting Refrigeration SystemSafety Information Page This page Left Blank Intentionally Unit Description General DescriptionWarranty Reference Information Theory of Operation Flow Diagram FIVE-FLAVOR Unit with BUILT-IN Cold Carbonator Flow Diagram SIX-FLAVOR Unit with BUILT-IN Cold Carbonator This page Left Blank Intentionally Identification of LOOSE-SHIPPED Parts Unpacking and InspectionCutting Hole in Countertop Installing UnitConnecting Plain Water Source Lines to Unit Selecting LocationSyrup Inlet Supply Line Connections SIX-FLAVOR Unit Shown Connecting Syrup Source Lines to Unit Fill Water Tank and Start Refrigeration System Connecting CO2 Source Line to UnitPreparing Unit for Operation Sealing Unit Base to CountertopUnit Unit OperationAdjust WATER-TO-SYRUP Ratio Brix of Dispensed Product 312027000 Daily PRE-OPERATION Check Operating ControlsReplenishing CO2 Supply AdjustmentsCleaning and Sanitizing Unit OperationSanitizing Syrup Systems Cleaning CO2 GAS Check ValvesChecking ICE Water Bath This page Left Blank Intentionally Periodic Inspection Front Access Panel RemovalPreparing Unit for SHIPPING, STORING, or Relocating Hood and Front Panel RemovalDispenser Components SF-1 Dispensing Valve Adjusting Dispensing Valves Water Flow RateUF-1 Dispensing Valve Adjusting WATER-TO-SYRUP Ratio Brix of Dispensed Product Cleaning DROP-IN Refrigeration Assembly Condenser Coil Cleaning Water Tank Water Tank Flush Syrup Systems Sanitizing POST-MIX Syrup SystemsWash Syrup Systems Water Flush Syrup Systems Sanitize Syrup SystemsPurge Water OUT of Syrup Systems Restore Operation 312027000 Water Strainer Screen and DOUBLE-LIQUID Check Valve Liquid Check Valve Assembly BAG-IN-BOX Syrup System Cleaning CO2 System CO2 GAS Check ValvesSyrup Flavor Change Syrup Tank SystemWiring Schematic for Electronic ICE Bank Control Optional 560001023 301112002 301112002 Wiring Diagram SF-1 Dispensing Valve This page Left Blank Intentionally TOO LOW or TOO High Troubleshooting POST-MIX System SystemWATER-TO-SYRUP Ratio Dispensing Valve Clear But Foams in CUP or Glass Dispensed ProductCarbonation TOO LOW Comes OUTValves Produces Foam AS ITLeaves Dispensing VALVE.CONT’D No Product Dispensed From ALL DispensingTroubleshooting Refrigeration System Agitator Motor not Compressor OperatesContinuously but does Not Form Sufficient ICE BankWarranty Page One Cornelius Place Anoka, Minnesota 612 800
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R-134A specifications

Cornelius R-134A is a refrigerant commonly used in various cooling and air conditioning applications. It belongs to the hydrofluorocarbon (HFC) family and has become a favored alternative to many ozone-depleting substances. Unlike its predecessors, R-12, which has been phased out due to its detrimental effects on the ozone layer, R-134A offers a more environmentally friendly solution, albeit still having global warming potential.

One of the main features of R-134A is its favorable thermodynamic properties. It exhibits a low boiling point of approximately -26.3°C (-15.3°F), making it suitable for various refrigeration applications, including automotive air conditioning, commercial cooling systems, and domestic refrigerators. Its efficiency is regarded as superior, allowing for quick heat absorption and dissipation. This efficiency translates into energy savings, ultimately benefiting both consumers and manufacturers.

R-134A also boasts a relatively high vaporization heat, demonstrating its effectiveness in heat transfer processes. The low toxicity and non-flammability of R-134A further enhance its appeal, as it poses minimal risk during handling and application. This characteristic makes R-134A safer for technicians and users compared to older refrigerants, which presented higher health hazards.

Within modern technologies, R-134A plays a crucial role in both chiller systems and heat pump applications. It is compatible with various lubricants, allowing manufacturers to utilize R-134A in existing systems with minimal modifications. However, it is essential to use the correct type of oil, as mixing different types can lead to system inefficiencies and potential failure.

Despite its advantages, R-134A has a global warming potential of around 1,430 times greater than carbon dioxide, prompting the refrigerant industry to look for alternatives. Newer refrigerants, such as R-1234yf, offer lower environmental impact, driving a shift towards more sustainable options.

In conclusion, Cornelius R-134A remains a widely used refrigerant known for its efficiency, safety, and effectiveness in heat transfer. While it has played a significant role in the refrigeration and air conditioning industries, the ongoing search for eco-friendly alternatives highlights the need for continued innovation and adherence to environmental standards.
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