What is the correct practice for handling refrigerant oil containers?

The practice of opening a refrigerant oil container only when necessary and capping it immediately after is essential to maintaining the integrity of the oil. This approach prevents contamination from moisture and debris that could compromise the performance of the refrigerant oil. Refrigerant oils are hygroscopic, meaning they can absorb moisture from the air, and exposure to open air can lead to oxidation or contamination, which may cause operational issues in the A/C system.

By minimizing the time the container remains open, you effectively reduce the risk of these problems, ensuring that the refrigerant oil remains clean and effective for its intended use. This practice contributes to better system performance and longevity, as using contaminated oil can lead to component wear and reduced efficiency in HVAC systems.