How low could moisture removal be depending on ambient air conditions and the quantity of air crossed the evaporator?

The correct choice regarding moisture removal based on ambient air conditions and the quantity of air crossing the evaporator is 325 cfm per ton. This value is significant because it reflects an optimal efficiency level for specific cooling systems under standard operating conditions.

When evaluating moisture removal, several factors come into play, including the humidity of the air entering the system, the temperature of the evaporator, and the volume of air that passes through it. The figure of 325 cfm per ton suggests a balance where sufficient air is circulated to extract the necessary moisture while maintaining adequate cooling capacity.

In general, as the air quantity increases, the system can handle more moisture, but it also needs to be considered alongside the cooling load. Therefore, the rated airflow of 325 cfm per ton represents a practical expectation for efficient moisture control in many HVAC systems, ensuring that they can dehumidify without being excessively energy-intensive or inefficient.

The other figures provided are less typical and may indicate scenarios that either require higher energy inputs or reflect conditions not generally observed in proper system configurations for effective moisture management. Understanding the implications of airflow rates and dehumidification capacities is crucial for HVAC professionals in performing energy audits and designing efficient cooling systems.