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Oil in the refrigeration circuit

The main objective of the oil for lubrication of the compressor; in addition, sealing and cooling for the oil-filled types. Oil specified by the manufacturer of the compressor should be used whenever possible. Various mineral and synthetic base oils such as Rice. 5.1 gives some indication of their suitability for this type of refrigerant. A blank indicates that the type of oil, as a rule, are not suitable. It should be emphasized that oil types shown, each of which is a family of products that can be used to reduce viscosity, and you must use the class or family of products. For example, polyester (POE) oils are specified as suitable for hydrocarbons, but a higher viscosity class, as a rule, demand for hydrocarbon raw materials in comparison with that used for HFCs. In addition, specific additives to improve lubricants or act as inhibitors may be present in branded products, and, therefore, compressor manufacturer should be consulted in regard to the modification of oil for a particular compressor.

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