What is the recommended mechanical air discharge for a system with 2,000 pounds of refrigerant?

The correct choice, 2,900 cfm, reflects the established guidelines and standards for mechanical air discharge related to systems incorporating significant refrigerant quantities, such as 2,000 pounds. When determining the appropriate air discharge rate for cooling systems, it is essential to account for the refrigeration load and ensure that the system can effectively remove heat while maintaining safe operational levels.

In this case, the recommended discharge rate is based on empirical data and practices within the industry that suggest a higher air discharge is necessary to suitably manage the heat exchange required for optimal performance without risking overheating. Therefore, the figure of 2,900 cfm is supported by various engineering standards and safety protocols that take into account the properties of the refrigerant, system design, and intended application.

Other options present values that may not be adequate or may result in insufficient heat removal, leading to potential inefficiencies or operational risks in the system. Ultimately, adherence to the recommended discharge rate is crucial for ensuring the safe and effective operation of the refrigeration system.