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 to remove the new refrigeration compressor system. 3. During the welding operation, in order not to cause an oxide film 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. It is forbidden to use the refrigeration compressor as a vacuum pump to evacuate the air in the pipeline of the external unit when replacing the refrigeration compressor or other parts, otherwise the refrigeration compressor will be burned, and the vacuum pump must be used to evacuate. 5. When replacing the refrigeration compressor, it is necessary to add freezing oil that matches the nature of the refrigeration compressor, and the amount of freezing oil should be 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, it is necessary to prevent excessive refrigeration oil in the system, otherwise the heat exchange effect of the system will be reduced, which will cause the system pressure to be high 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 piece to break, resulting in 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

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