8.If freeze cylinder is not full of product, repeatedly pull and release the faceplate relief valve to slowly bleed

CO2 from the freeze cylinder and allow product to fill the cylinder. Do not relieve freeze cylinder pressure too fast or the product will foam excessively in the cylinder and lose carbonation.

BAG–IN–BOX SYSTEM

1.Press applicable ‘‘OFF’’ switch on the control panel to stop the applicable freeze cylinder beater and refrig- eration system.

2.Disconnect syrup outlet tube from empty bag-in-box container, then remove empty container.

3.Open flap on full bag-in-box container.

4.Pull bag-in-box container connector from the container, then remove dust cap from the connector.

5.Rinse syrup outlet tube in warm water.

6.Connect syrup outlet tube to full bag-in-box container. Make sure syrup outlet tube is securely connected to the container.

7.Press applicable ‘‘SYRUP PRIME’’ switch to fill applicable No. 1 or No. 2 syrup system syrup float switch with syrup.

8.Press applicable “BLEND ON/OFF’’ switch to fill applicable No. 1 or No. 2 system product blender tank with product.

9.Press applicable ‘‘ON’’ switch to start the refrigeration system and beater in applicable No. 1 or No. 2 freeze cylinder.

10.If freeze cylinder is not full of product, repeatedly pull and release the faceplate relief valve to slowly bleed

CO2 from the freeze cylinder and allow product to fill the cylinder. Do not relieve freeze cylinder pressure too fast or the product will foam excessively in the cylinder and lose carbonation.

SYRUP FLAVOR CHANGE

The Unit syrup system that the syrup flavor change will be made on must be sanitized before connecting new flavor syrup to the system. It may be necessary to readjust BRIX (Water-To-Syrup) “Ratio” of the dispensed product after making a syrup flavor change.

REPLENISHING CO2 SUPPLY

The Unit and it’s syrup supply source may be connected to either a bulk CO2 supply or to a CO2 cylinder. If your Unit is connected to a CO2 cylinder, proceed as follows to replenish the 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.

NOTE: When indicator on primary CO2 cylinder regulator assembly 1800-psi gage is in shaded (‘‘change CO2 cylinder’’) portion of the dial, CO2 cylinder is almost empty and should be changed.

1.Fully close (clockwise) CO2 cylinder valve.

2.Slowly loosen CO2 regulator assembly coupling nut allowing CO2 pressure to escape, then remove regula- tor assembly from empty CO2 cylinder.

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Cornelius R-404A manual Syrup Flavor Change, Replenishing CO2 Supply, BAG-IN-BOX System
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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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