When should oil be tracked in a refrigeration system?

Tracking oil in a refrigeration system is essential for maintaining its efficiency and ensuring that the system operates smoothly. The correct choice emphasizes the importance of monitoring oil levels whenever it is added or removed from the system.

When oil is added, it may indicate that there was a loss of oil due to leaks or other issues that need to be addressed. Conversely, when oil is removed, it often indicates a need for maintenance or repair, such as when a component is replaced or during system servicing. This practice helps technicians identify potential problems early, maintain proper lubrication of the compressor, and ensure that the system operates as intended without risking damage caused by insufficient oil levels.

Tracking oil only during maintenance, at the beginning of the season, or every week, as suggested by the other choices, does not provide the same level of detail or proactive monitoring and could lead to oversights in oil management, ultimately jeopardizing the efficiency and reliability of the refrigeration system.