Before replacing the compressor, remember to do 10 things first, remember

Before replacing the compressor, remember to do 10 things first, remember 1. Before replacing, you must check the cause of the damage to the original refrigeration compressor and replace the defective parts. Because damage to other components will directly cause damage to the refrigeration compressor, remember! 2. After the original damaged refrigeration compressor is removed, the system must be blown with nitrogen before it can be connected to the new refrigeration compressor system. 3. During the welding operation, in order to prevent the oxide film from forming on the inner wall of the copper pipe, it is recommended to pass nitrogen gas, and the time for the nitrogen gas to pass should be sufficient. 4. When replacing the refrigeration compressor or other parts, it is forbidden to use the refrigeration compressor as a vacuum pump to evacuate the air in the external unit pipeline, otherwise the refrigeration compressor will be burned, and the vacuum pump must be used to draw a vacuum. 5. When replacing the refrigeration compressor, it is necessary to add freezing oil that matches the nature of the refrigeration compressor, and the appropriate amount of freezing oil is appropriate. Generally speaking, new original compressors have freezing oil. 6. When replacing the refrigeration compressor, the drying filter must be replaced in time. Because the desiccant in the desiccant filter is saturated, the water filtering function is lost. 7. The refrigeration oil in the original system must be cleaned, because the new pump has been injected with sufficient production of refrigeration oil, and different brands of refrigeration oil cannot be mixed, otherwise it will deteriorate and cause poor lubrication, causing the refrigeration compressor to pull the cylinder and turn yellow. , Burnt. 8. When replacing the refrigeration compressor, pay attention to prevent the excessive amount of freezing oil in the system, otherwise it will cause the heat exchange effect of the system to be reduced, which will make the system pressure higher and damage the system and the refrigeration compressor. 9. Don't fill the refrigerant too fast, otherwise it will produce liquid shock, which will cause the valve slice to break, causing pressure loss in the refrigeration compressor. 10. After the installation is completed, the compressor should be checked for normal operation, such as: suction pressure/temperature, discharge pressure/temperature, oil pressure differential pressure and other system parameters. If the parameter exceeds the normal value, the cause of the abnormal system parameter must be clarified.