Before removing oil from a refrigeration system, to what temperature should it be heated to minimize refrigerant leakage?

• A. 100 F
• B. 120 F
• C. 130 F
• D. 140 F

Answer: (C)

Heating the oil in a refrigeration system to approximately 130°F before removal is recommended to minimize refrigerant leakage. At this temperature, the oil becomes less viscous, making it easier to manage and ensuring that trapped refrigerant escapes more effectively. This helps in preventing unwanted release of refrigerants into the atmosphere, which is not only harmful to the environment but is also a violation of EPA regulations.

Maintaining proper practices when handling refrigerants is crucial to adhere to safety guidelines and environmental laws. The temperature of 130°F strikes a balance where the oil is sufficiently fluid to aid in the removal process while also maintaining safe handling standards. It is important to avoid higher temperatures that could lead to degradation of the oil or increased risks during the recovery process. Thus, heating to 130°F is a best practice to aid in both effective recovery and environmental compliance.