Cornelius R-134A service manual General Description, Unit Description

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GENERAL INFORMATION

IMPORTANT: To the user of this manual - This manual is a guide for installing, operating, and main- taining this equipment. Refer to the Table of Contents for page location for detailed information per- taining to questions that arise during installation, operation, service, or maintenance of this equipment.

GENERAL DESCRIPTION

This section gives the Unit description, theory of operation, and design data for the five and six-flavor Ventures Post-Mix Dispensers with Built-In Cold Carbonators (hereafter referred to as Units).

This Unit must be installed and serviced by a qualified Service Person. This Unit contains no User serviceable parts.

UNIT DESCRIPTION

The Units are compact with high-impact and corrosion-resistant moulded lower housings and may be island- mounted or installed on a front or rear counter. Their refrigeration assemblies are the 1/3 H.P. drop-in type that can be easily removed for service and maintenance. The Units are equipped with built-in cold carbonators with their carbonated water tanks located inside the Units lower housings water tanks. Adjustable syrup flow regulators, located on the electrically operated dispensing valves, are easily accessible to control water-to-syrup “Ratio”of the dispensed product.

Installation of the Unit on a countertop, installation of LOOSE-SHIPPED PARTS, connection of plain water and syrup supplies, adjustment of CO2 regulators, filling water tank with water, and plugging the Unit power cord into an electrical outlet is all that is required for operation.

NOTE: Optional 4-inch Legs (P/N 314744000) that will elevate the Unit 4-inches above the countertop are available. When ordering legs, order a quantity of four.

CAUTION: Before shipping, storing, or relocating this Unit, the syrup systems must be

sanitized and all sanitizing solution must be purged from the syrup systems. All water must also be purged from the plain and carbonated water systems. A freezing ambient

environment will cause residual water in the Unit to freeze resulting in damage to internal components.

FIGURE 1. VENTURE SIX-FLAVOR POST-MIX DISPENSER

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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 PartsInstalling Unit Connecting Plain Water Source Lines to UnitSelecting Location Cutting Hole in CountertopSyrup Inlet Supply Line Connections SIX-FLAVOR Unit Shown Connecting Syrup Source Lines to Unit Connecting CO2 Source Line to Unit Preparing Unit for OperationSealing Unit Base to Countertop Fill Water Tank and Start Refrigeration SystemUnit Operation UnitAdjust WATER-TO-SYRUP Ratio Brix of Dispensed Product 312027000 Operating Controls Daily PRE-OPERATION CheckAdjustments Cleaning and SanitizingUnit Operation Replenishing CO2 SupplySanitizing Syrup Systems Cleaning CO2 GAS Check ValvesChecking ICE Water Bath This page Left Blank Intentionally Front Access Panel Removal Preparing Unit for SHIPPING, STORING, or RelocatingHood and Front Panel Removal 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 Cleaning CO2 System CO2 GAS Check Valves Syrup Flavor ChangeSyrup Tank System 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 Dispensed Product Carbonation TOO LOWComes OUT Dispensing Valve Clear But Foams in CUP or GlassProduces Foam AS IT Leaves Dispensing VALVE.CONT’D No Product DispensedFrom ALL Dispensing ValvesTroubleshooting Refrigeration System Compressor Operates Continuously but doesNot Form Sufficient ICE Bank 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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