In a 75 Ton chilled system for a skating rink, what type of glycol or brine should be used?

In a 75 Ton chilled system for a skating rink, consulting with the manufacturer for the suitability of either ethylene or propylene glycol is essential. This approach is recommended because the choice of glycol can significantly impact the system's performance, efficiency, and safety.

Both ethylene glycol and propylene glycol serve as effective heat transfer fluids in chillers and refrigeration systems, but each has different properties and potential applications. Ethylene glycol is more commonly used due to its lower cost and high heat transfer capabilities; however, it is toxic and can present safety concerns if leaks occur. Propylene glycol, on the other hand, is generally classified as safer and is often the preferred choice in systems where food safety or human contact is a concern, such as in recreational ice rinks.

The manufacturer will provide specifications and recommendations based on the system design, environmental conditions, and any regulatory requirements. Hence, consulting with them ensures that the chosen glycol aligns with the system's operational demands and safety standards, thereby maximizing efficiency and preventing potential issues down the line.

Looking at the other options, stating only ethylene glycol or only propylene glycol does not account for situations where one may be more suitable than the other based on the specific system or application requirements. A saltwater