What is the next step after converting the pressure reading to temperature?

After converting the pressure reading to temperature, the appropriate next step involves understanding the relationship between the saturation temperature and the suction line temperature in a refrigeration cycle. The correct step is to subtract the saturation temperature from the suction line temperature.

This process is essential for evaluating system efficiency and determining whether a refrigerant is experiencing subcooling or overheating. By calculating this difference, technicians can assess the performance of the system, noticing if the evaporator or condenser is functioning correctly. A higher suction line temperature indicates an increase in superheat, while comparing it with the saturation temperature helps to identify potential issues in the refrigerant handling and efficiency.

The other choices do not focus on this critical evaluation process, which is fundamental in diagnosing and optimizing HVAC/R systems.