Cornelius R-404A manual Dispensed Product Conditions, Drawing

Page 14

DISPENSED PRODUCT CONDITIONS

‘‘OVERRUN’’, AS APPLIED TO FROZEN CARBONATED BEVERAGES

Overrun Defined.

Overrun is product expansion that takes place in the frozen carbonated drink. It is caused primarily by CO2 gas breakout and secondary by freezing.

Low Dispensing Volume Affects Overrun.

When the Unit sits idle for a period of time and no drinks are dispensed, CO2 gas in the system takes a ‘‘set’’. When the first few drinks are drawn off after an idle period, the CO2 gas has less tendency to break out as the drink is dispensed. The result is these casual drinks have less overrun than drinks dispensed during the peak￿ use periods.

DRAWING 1

DRAWING 2

DRAWING 3

Carbonation Level in Liquid Product Affects Overrun.

The higher the specific carbonation level in a given product, the greater the potential for carbonation breakout in the frozen carbonated form of that drink. For example, drinks with 3.0 volume of carbonation will have more gas breakout in frozen carbonated form, and more overrun, than will drinks that contain 2.0 volumes of CO2 gas.

Overrun is a Variable.

The percentage or degree of overrun depends on a number of factors. The specific syrup, BRIX low dispensing volume, carbonation level in liquid product, and freezing, all affect the overrun. After these factors have been considered, desired viscosity (product consistency) adjustment may be made on the Unit. The viscosity adjust- ment adjusts product texture from very wet to light.

Specific Product Ingredients Affect Overrun.

Each syrup has its own specific formulation of makeup. Baume, an important ingredient factor, may fall within an extremely wide range. Fruit flavors contain citric acids that colas do not. Colas also differ in ingredients from one brand to another. Each product formulation has its own peculiarities regarding the way the product will ab- sorb carbonation and the way it will release carbonation.

BRIX Affects Overrun.

Sugar in carbonated drinks is like antifreeze in water. The higher the BRIX in a product, the greater resistance the product has to freezing. Conversely, in products with lower BRIX, freezing takes place at higher tempera- tures than for high-BRIX products. Thus, BRIX affects overrun because the amount of sugar in a drink has a direct bearing on the product’s freezing characteristics.

9

312030002

Page 13 Page 15
Image 14
Page 13 Page 15
Contents FCB POST-MIX Dispenser With V4 Features 404A Refrigerant Table of Contents Table of Contents cont’d FCB POST-MIX Dispensers with V4 Features List of FiguresThis page Left Blank Intentionally Safety Information This page Left Blank Intentionally Control Panel Switches Control Panel Keypad Security‘‘SYRUP PRIME’’ Switches Operating Controls FOUR-FLAVOR Unit Shown ‘‘FILL 1’’ and ‘‘FILL 2’’ Fault Messages Control Panel Display MessagesUnits Equipped with Electric Defrost Systems Defrost SystemsUnits Equipped with HOT-GAS Defrost Systems Faceplate Relief Valves ‘‘SLEEP’’ Sleep Time‘‘WAKE UP’’ Wake UP Time Dispensing ValvesDrawing Dispensed Product Conditions‘‘OVERRUN’’, AS Applied to Frozen Carbonated Beverages Operating Unit Operating CharacteristicsAdjusting CO2 Regulators Primary CO2 RegulatorSecondary CO2 Regulators Adjusting Brix WATER-TO-SYRUP Ratio of Dispensed ProductReplenishing Syrup Supply Syrup Tanks SystemBAG-IN-BOX System Syrup Flavor ChangeReplenishing CO2 Supply Cleaning and Sanitizing Daily Cleaning of Unit312030002 312030002 Unit with Remote Condensing Refrigeration Cleaning Condenser CoilUnit with AIR-COOLED Refrigeration System Troubleshooting Troubleshooting Control Panel Switches and Fault MessagesTroubleshooting Product Blender Tanks and Carbonators OperationTroubleshooting Dispensed Product Water Pump CyclingInstructed 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.
Top Page Image Contents