Question 206Refrigeration & AC - Assistant Engineer

The correct answer is C) vapor recovery. The vapor recovery method is recommended to minimize the loss of oil during the recovery of refrigerant from small appliances like a water cooler. This method focuses on recovering the refrigerant in its vapor state, which helps prevent the loss of lubricating oil that can occur with liquid recovery. Vapor recovery is the most efficient and environmentally-friendly approach for handling refrigerant in small systems, as it reduces the risk of oil contamination and ensures the safe disposal or recycling of the recovered refrigerant. The other options are less suitable for this application. Liquid recovery could lead to oil loss, vapor-liquid recovery is more complex for small systems, and initial recovery does not address the specific goal of minimizing oil loss.