Cornelius R-404A manual Operating Characteristics, Operating Unit, Adjusting CO2 Regulators

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Freezing Affects Overrun.

Freezing causes approximately a 10 percent expansion in a dispensed frozen carbonated drink. The degree of freezing is limited because the finished drink is intended to be sipped through a straw. This is not possible if the product is too ‘‘solid’’.

OPERATING CHARACTERISTICS

The product viscosity (product consistency) can be varied by adjustment and secondary CO2 regulator setting from a high overrun light drink to a wet heavy drink. The length of the freezing cycle and the amount of CO2 present in the product combine to create the drink dispensed. The dispensed product will have a normal vari- ance due to the following conditions:

1.If some time has elapsed since the last drink was drawn from a particular freeze cylinder and the compres- sor has not cycled on, the drink dispensed will have a tendency to be wetter, have slightly less overrun than normal for the setting, and will not mound up as high. See Drawing 1.

NOTE: A cylinder freeze-up may be expected under casual draw conditions if an attempt is made to eliminate the drink described above by adjusting viscosity.

2.If product is drawn from the freeze cylinder quite regularly, its viscosity (product consistency) will be main- tained at whatever viscosity setting was made within the normal variance of the compressor off and on cycle. See Drawing 2.

3.If product is drawn continuously from the freeze cylinder and the rate is approaching capacity of the dis- pensing Unit, overrun of the drink will increase just prior to point capacity is exceeded, and drink dispensed will turn slightly wetter (see Drawing 3).

OPERATING UNIT

NOTE: Two-flavor Unit- The No. 1 freeze cylinder is the left-hand cylinder facing the front of the Unit. The No. 2 freeze cylinder is to the right of the No. 1 freeze cylinder.

Four-flavor Unit- The No. 1 freeze cylinder is the left-hand cylinder facing the front of the Unit. The oth- er three freeze cylinders are labeled 2, 11, and 22.

1.Make sure ‘‘H2O OUT’’ fault message is not displayed on the message display. This indicates no water supply to the Unit.

2.Make sure ‘‘CO2 OUT’’ fault message is not displayed on message display. This indicates no CO2 gas sup- ply to Unit.

3.Make sure ‘‘SYRUP 1’’ or ‘‘SYRUP 2’’ fault messages are not displayed on the message display. This indi- cates no syrup supply to the Unit.

4.Make sure both ‘‘BLEND ON/OFF’’ and both “ON” control switches are pressed for normal operation.

5.Place cup under the dispensing valve, then dispense until the cup is full of product.

6.Make sure viscosity (product consistency) is as desired. If not, adjust as instructed.

ADJUSTING CO2 REGULATORS

PRIMARY CO2 REGULATOR

The primary CO2 regulator controls CO2 pressure to the syrup tanks (syrup tanks syrup source system) or to the syrup pumps (bag-in-box syrup source system). If adjustment of this CO2 regulator should become neces- sary, call a qualified Service Person to make the adjustment.

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Contents FCB POST-MIX Dispenser With V4 Features 404A Refrigerant Table of Contents Table of Contents cont’d List of Figures FCB POST-MIX Dispensers with V4 FeaturesThis page Left Blank Intentionally Safety Information This page Left Blank Intentionally Control Panel Keypad Security Control Panel Switches‘‘SYRUP PRIME’’ Switches Operating Controls FOUR-FLAVOR Unit Shown Control Panel Display Messages ‘‘FILL 1’’ and ‘‘FILL 2’’ Fault MessagesDefrost Systems Units Equipped with HOT-GAS Defrost SystemsUnits Equipped with Electric Defrost Systems Dispensing Valves ‘‘SLEEP’’ Sleep Time‘‘WAKE UP’’ Wake UP Time Faceplate Relief ValvesDispensed Product Conditions ‘‘OVERRUN’’, AS Applied to Frozen Carbonated BeveragesDrawing Primary CO2 Regulator Operating CharacteristicsAdjusting CO2 Regulators Operating UnitSyrup Tanks System Adjusting Brix WATER-TO-SYRUP Ratio of Dispensed ProductReplenishing Syrup Supply Secondary CO2 RegulatorsSyrup Flavor Change Replenishing CO2 SupplyBAG-IN-BOX System Daily Cleaning of Unit Cleaning and Sanitizing312030002 312030002 Cleaning Condenser Coil Unit with AIR-COOLED Refrigeration SystemUnit with Remote Condensing Refrigeration Troubleshooting Control Panel Switches and Fault Messages TroubleshootingOperation Troubleshooting Product Blender Tanks and CarbonatorsWater Pump Cycling Troubleshooting Dispensed ProductInstructed Warranty Page One Cornelius Place Anoka, Minnesota 612 800

R-404A specifications

Cornelius R-404A is a synthetic refrigerant blend widely used in various refrigeration and air conditioning applications. Composed primarily of three components—R-125 (44%), R-143a (52%), and R-134a (4%)—this blend is designed to provide effective cooling performance in both commercial and industrial environments. Its popularity can be attributed to its efficient thermodynamic properties, making it a suitable choice for low and medium temperature refrigeration systems.

One of the hallmark features of R-404A is its high energy efficiency. As a refrigerant, it offers excellent performance in heat transfer capabilities, which translates to lower energy consumption and operational costs. R-404A operates effectively within a wide range of evaporating temperatures, allowing it to serve various applications, from refrigerated display cases to cold storage facilities. The refrigerant's low glide temperature helps maintain consistent temperatures in these applications, enhancing food safety and product quality.

R-404A does not belong to the ozone-depleting substances category, making it an environmentally friendly choice. However, it is important to note that R-404A does have a significant global warming potential (GWP) of 3,922, raising concerns regarding its long-term environmental impact. As awareness of climate change increases, industries are shifting towards alternative refrigerants with lower GWPs, but R-404A remains prevalent in many existing systems.

In terms of compatibility, R-404A is non-toxic and non-flammable, making it a safe choice for use in commercial environments. Additionally, it is compatible with oils traditionally used in refrigeration systems, simplifying retrofitting processes when upgrading from other refrigerants. R-404A is also designed to work with standard refrigeration components, ensuring compatibility with existing equipment.

To maximize efficiency and performance when using R-404A, proper system design and maintenance are critical. Regular checks for leaks, appropriate charge levels, and routine maintenance can help extend the life of the system while ensuring optimal performance of R-404A as a refrigerant. As industries continue to adapt to evolving regulations and environmental concerns, the future of R-404A will likely involve the transition to lower-GWP refrigerants, but its robust features and performance continue to make it a staple in the refrigeration landscape.
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