Cornelius R-134A service manual Water Strainer Screen and DOUBLE-LIQUID Check Valve

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WATER LINE TO TANK

WHITE TAPERED GASKET

DOUBLE-LIQUID

CHECK VALVE

ELBOW

PUMP TO MOTOR COUPLING

WATER PUMP

WATER

STRAINER SCREEN

(P/N 315348000)

O-RING (P/N 315349000)

SCREEN RETAINER

FIGURE 9. WATER STRAINER SCREEN AND DOUBLE-LIQUID CHECK VALVE

8.Connect the carbonated water line to the double-liquid check valve.

9.Turn the carbonator primary CO2 regulator adjusting screw to the right (clockwise) until it’s gage indicates pressure setting noted in step 4 of Servicing Water Pump Water Inlet Strainer Screen.

10.Open the water inlet supply line shutoff valve.

11.Pull up on the carbonated water tank relief valve to purge all air from the tank.

12.Install the carbonated water tank access hole cover and secure with screw.

13.Install the Unit hood and secure with screw.

14.Plug Unit power cord into electrical outlet.

15.Test dispense Unit for proper operation.

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.

33

312027000

 

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Contents Installation/Service Manual This Document Contains Important InformationTable of Contents Table of Contents cont’d Troubleshooting Refrigeration System Compressor Operates Continuously but does not FormSafety Information Page This page Left Blank Intentionally General Description Unit 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 Unpacking and Inspection Identification of LOOSE-SHIPPED PartsSelecting Location Installing UnitConnecting Plain Water Source Lines to Unit Cutting Hole in CountertopSyrup Inlet Supply Line Connections SIX-FLAVOR Unit Shown Connecting Syrup Source Lines to Unit Sealing Unit Base to Countertop Connecting CO2 Source Line to UnitPreparing Unit for Operation Fill Water Tank and Start Refrigeration SystemUnit Operation UnitAdjust WATER-TO-SYRUP Ratio Brix of Dispensed Product 312027000 Operating Controls Daily PRE-OPERATION CheckUnit Operation AdjustmentsCleaning and Sanitizing Replenishing CO2 SupplySanitizing Syrup Systems Cleaning CO2 GAS Check ValvesChecking ICE Water Bath This page Left Blank Intentionally Hood and Front Panel Removal Front Access Panel RemovalPreparing Unit for SHIPPING, STORING, or Relocating Periodic InspectionDispenser Components Adjusting Dispensing Valves Water Flow Rate SF-1 Dispensing ValveUF-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 Sanitize Syrup Systems Water Flush Syrup SystemsPurge Water OUT of Syrup Systems Restore Operation 312027000 Water Strainer Screen and DOUBLE-LIQUID Check Valve Liquid Check Valve Assembly Syrup Tank System Cleaning CO2 System CO2 GAS Check ValvesSyrup Flavor Change BAG-IN-BOX Syrup 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 Comes OUT Dispensed ProductCarbonation TOO LOW Dispensing Valve Clear But Foams in CUP or GlassFrom ALL Dispensing Produces Foam AS ITLeaves Dispensing VALVE.CONT’D No Product Dispensed ValvesTroubleshooting Refrigeration System Not Form Sufficient ICE Bank Compressor OperatesContinuously but does Agitator Motor notWarranty 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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