xindacool Original Factory of Refrigeration Equipment | Key Points for Selecting Refrigerant Oil, Distinction between Mineral Oil, POE, and PVE Oils, Consequences of Incorrect

xindacool Original Factory of Refrigeration Equipment | Key Points for Selecting Refrigerant Oil, Distinction between Mineral Oil, POE, and PVE Oils, Consequences of Incorrect Matching of Refrigerant and Lubricating Oil in the System Core Conclusion: Refrigerant oil must be strictly matched with the refrigerant. Mixing or mismatching will result in oil precipitation, lubrication failure, pipe fouling, direct damage to the compressor, and random substitution of the selection is not allowed. Refrigeration Refrigerant Oil is divided into mineral oil, POE polyol ester oil, and PVE polyethylene ether oil. Traditional refrigerants are mostly compatible with mineral oil; most low GWP new refrigerants are only compatible with POE/PVE synthetic oil and cannot use mineral oil. The mutual solubility of refrigerants and oils is insufficient, resulting in oil precipitation from the refrigerant, formation of an oil film on the inner wall of the heat exchanger, a 20-35% decrease in heat exchange efficiency; long-term operation of the pipeline will be carbonized and clogged, blocking the filter and expansion valve, and causing lubrication failure of the compressor. xindacool Newly manufactured machines have been filled with corresponding refrigerant oil based on the refrigerant model; when replacing the compressor for maintenance, the original factory-specified model oil must be used. It is strictly prohibited to mix different types of refrigerant oil. Mixing mineral oil with POE oil will cause oil deterioration. POE synthetic oil has extremely strong water absorption and should be added as soon as the cover is opened. Exposure to air will quickly absorb water into the system, causing ice blockage and acid erosion risks. Operation and Maintenance Key Points: The viscosity grade of the oil cannot be randomly replaced either; after the system is flooded with water or the compressor burns out, only replacing the compressor is not enough. The pipeline needs to be thoroughly flushed to remove the residual deteriorated oil. Overseas export models should be matched with corresponding refrigerant oil specifications based on local refrigerant usage habits. Refrigerant oil should be stored in a sealed, cool, and dry place. It should be used up as soon as it is opened. Many causes of on-site compressor damage are not the compressor body itself, but the long-term hidden dangers caused by using the wrong refrigerant oil model during maintenance. FAQ 1. Can new refrigerants be mixed with mineral oil? Most low GWP refrigerants are incompatible with mineral oil. 2. What are the characteristics of POE oil? It has good lubrication performance, but it has strong water absorption. Open the container and add it as soon as possible. 3. Can different refrigerants be mixed? It is prohibited to mix mineral oil with POE oil directly. 4. What consequences will oil separation bring? It will cause the oil film on the heat exchanger to be disrupted, the heat exchange to deteriorate, and the valves to be prone to clogging. 5. Can replacing the compressor alone solve the problem of compressor burnout? The pipeline will still contain deteriorated oil, and the system needs to be flushed. 6. Can the viscosity grade be changed at will? It must be according to the specified viscosity by the manufacturer. It is not allowed to replace it randomly.