Cornelius R-134A service manual Selecting Location, Installing Unit, Cutting Hole in Countertop

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SELECTING LOCATION

CAUTION: This Unit is intended for indoor installation only. Do not install this Unit in an outdoor environment which would expose it to the outside elements.

This Unit may be island-mounted or installed on a front or rear counter. Locate the Unit so the following requirements are satisfied:

DANGER: To avoid possible fatal electrical shock or serious injury to the operator, it

is required that a GFCI (ground fault circuit interrupt) be installed in the electrical circuit for the domestic Units. It is required that an ELCB (earth leakage circuit breaker) be

installed in the electrical circuit for the export Units

1.The Unit must be installed near a properly grounded electrical outlet with proper electrical require- ments.The electrical circuit must be properly fused (slow-blow type fuse) or the circuit must be connected through an equivalent HACR circuit breaker.The electrical outlet must be accessible for ease of connecting and disconnecting the Unit power cord. No other electrical equipment should be connected to this circuit.

REFER TO UNIT NAMEPLATE FOR THE REQUIRED POWER CIRCUIT OPERATING VOLTAGE, HZ, AND THE MINIMUM CIRCUIT AMPACITY OF THE UNIT. ALL ELECTRICAL WIRING MUST CONFORM TO NATIONAL AND LOCAL ELECTRICAL CODES.

CAUTION: Do not place or store anything on top of the Unit.

2.A minimum of 15-inches clearance must be maintained above the Unit to the nearest obstruction (shelf, cupboard, ceiling, etc.) and 6-inches clearance between back-side of the Unit and the wall. The front grille of the Unit must be unobstructed to allow air to enter the hood.

3.Close to a permanent drain to route drip tray drain hose and water tank drain hose.

INSTALLING WATER ONLY LEVER KIT (P/N 3297) ON UF-1 DISPENSING VALVE

The WATER ONLY LEVER KIT, UF-1 DISPENSING VALVE (item 10) is loose-shipped with all six-flavor Dispensers equipped with UF-1 dispensing valves. Installation of this kit on the dispensing valve allows plain or carbonated (depending on which dispensing valve the kit has been installed on) water only to be dispensed. If desired, the kit may be installed at this time following instructions included with the kit.

INSTALLING UNIT

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.

CUTTING HOLE IN COUNTERTOP

Place Unit in location on the countertop flush with the countertop edge. Mark Unit center line on edge of the countertop, then move Unit off to one side. Starting at center line mark on edge of the countertop, measure back 8-inches for location of the 2-1/2-inch diameter hole to be cut in the countertop. Cut a 2-1/2-inch hole in the countertop where indicated. Place the Unit in position over the hole.

CONNECTING PLAIN WATER SOURCE LINE(S) TO UNIT

(see applicable Figure 2 or 3 and Figure 4)

NOTE: IMI Cornelius Inc. recommends that a water shutoff valve and water filter be installed in the plain water inlet supply line (see applicable Figure 2 or 3) . A Cornelius Water Filter (P/N 313860000) and Quick Disconnect Set (P/N 313867000) are recommended.

312027000

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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 OperationCleaning CO2 GAS Check Valves Checking ICE Water BathSanitizing Syrup Systems 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 Sanitizing POST-MIX Syrup Systems Wash Syrup SystemsFlush 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 Troubleshooting POST-MIX System System WATER-TO-SYRUP RatioTOO LOW or TOO High 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.