What percentage of capacity does R-410A lose for each pound of pressure that drops?

The correct response addresses a fundamental principle of refrigeration and HVAC systems, specifically regarding the performance of refrigerants like R-410A. When there is a drop in pressure within the system, it directly impacts the refrigerant's ability to absorb and transfer heat.

For every pound of pressure that decreases in an R-410A system, it results in a loss of approximately 0.6% of the refrigerant’s capacity. This means that as the pressure decreases, the performance of the system diminishes correspondingly. Understanding this relationship is crucial for technicians and engineers working with HVAC systems, as it helps in diagnosing performance issues, optimizing system efficiency, and ensuring proper maintenance.

The other percentages presented in the options do not align with the commonly accepted loss of capacity associated with pressure drop for R-410A. Acknowledging the specific rate helps in making more accurate assessments about system performance under various operating conditions.