1. Before replacing, it is necessary to check the cause of damage to the original refrigeration compressor and replace the defective parts.Because of the damage of other components will also lead to direct damage to the refrigeration compressor.
2. After the original damaged refrigeration compressor is removed, the system must be cleaned with nitrogen pollution before connecting the new refrigeration compressor system.
3. In the welding operation, in order to avoid the formation of oxide film on the inner wall of copper pipe, it is recommended to pass nitrogen into the pipe, and the lead time of nitrogen should be enough.
4. banned in replacing refrigeration compressor or other parts, the refrigeration compressor machine outside emptying air pipeline as vacuum pump, otherwise it would be burned refrigeration compressor, vacuum pump must be used to vacuum.
5. When replacing the refrigeration compressor, it is necessary to add the refrigerated oil that conforms to the nature of the refrigeration compressor, and the amount of refrigerated oil should be appropriate. Generally speaking, the new original compressor has refrigerated oil.
6. When replacing the refrigeration compressor, the dry filter must be replaced timely.Because the desiccant in the drying filter is saturated, it has lost the function of filtering water.
7. Must take the original system of frozen oil clean, because the new pump has been injected into full production frozen oil, different type of frozen oil won’t mix, otherwise can cause poor lubrication, metamorphism in compressor cylinder, yellowing, burning.
8. When replacing the refrigeration compressor, attention should be paid to prevent excessive refrigerating 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. Do not inject refrigerant too fast, otherwise it will cause liquid shock, resulting in valve disc fracture, resulting in noise and pressure loss in the refrigeration compressor.
10. After installation, check the normal operation of the compressor, such as: suction pressure/temperature, exhaust pressure/temperature, oil pressure differential pressure and other system parameters.If the parameter exceeds the normal value, it must be clear why the system parameter is abnormal.
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Post time: Jul-11-2019
