Regularly inspect and maintain the electric air conditioning compressor, replace wearing parts, clean the cooling system, and check the refrigerant. It can ensure that the electric ac compressor maintains good operating condition, improves the energy efficiency of the equipment, ensures the safety of the electric compressor and extends its service life. And it can avoid equipment failure or damage during operation and improve the reliability and stability of equipment.
✔ Regular inspection: Check the pipelines for leaks every month, check the oil level and coolant level, clean the oil return filter, etc. Conduct a comprehensive inspection every year, including replacing lubricating oil and oil-gas separator filter elements, replacing air filter elements, etc.
✔ Lubrication and maintenance: Regularly check whether the lubricating oil inside the compressor is sufficient. If the lubricating oil is insufficient, add it in time.
✔ Replace wearing parts: Regularly replace air filters, lubricating oil filters, oil and gas separators and other wearing parts.
✔ Clean the cooling system: Clean the cooling system regularly, including heat sinks, cooling fans, etc., to maintain good cooling effects.
✔ Check the refrigerant: Regularly check whether the refrigerant charge is sufficient. If the refrigerant is insufficient, it needs to be recharged in time.
✔ Check electrical components: Regularly check whether the electrical components of the compressor are working properly, including motors, wiring terminals, etc.
✔ Check the safety protection device: Regularly check whether the safety protection device of the compressor is sensitive. If there is a problem, it needs to be replaced or repaired in time.
✔ Storage and Transportation: When not in use for a long time, it is recommended to store the electric air conditioning compressor in a dry, well-ventilated place and avoid direct sunlight. During transportation, severe vibrations and collisions should be avoided.
1. Regularly check whether the lubricating oil inside the compressor is sufficient. If the lubricating oil is insufficient, add it in time.
2. Check whether there is oil leakage in the compressor crankcase. If there is oil leakage, the seals need to be replaced or reassembled in time.
3. Check whether the refrigerant charge is sufficient. If the refrigerant is insufficient, it needs to be recharged in time.
4. Check whether there is abnormal noise or vibration in the compressor. If there is any abnormality, troubleshoot the problem in time.
5. Check whether the temperature of the compressor is too high. If the temperature is too high, stop the machine immediately and check whether the cooling system is normal.
6. Regularly clean the external dust and internal pipes of the compressor to keep the compressor clean and hygienic.
7. Check whether the compressor circuit is aged or damaged. If these problems exist, they need to be replaced or repaired in time.
8. Check whether the compressor's anchor screws are loose or fallen off. If there is a problem, tighten or replace the screws in time.
9. Check whether the pressure gauge of the compressor is working properly. If there is a problem, the pressure gauge needs to be replaced or repaired in time.
10. Check whether the safety protection device of the compressor is sensitive. If there is a problem, the safety protection device needs to be replaced or repaired in time.
▶ Clean anti-rust oil, paint, rust, sludge, and other dirt on the surface of the compressor.
▶ Use a soft scraper, fine cloth, and cleaning agent to scrub the surface of the compressor.
▶ Use kerosene to clean the compressor until it is clean.
▶ After the cleaning is completed, clean it again with clean uncontaminated gasoline until it is clean.
▶ After the compressor cleaning is completed, reinstall the compressor according to the steps and test run the air conditioner to ensure that the installation is accurate.
★ Before cleaning, you need to turn off the power of the air conditioner first, then close the air conditioner control valve, and discharge all the refrigerant in the air conditioner.
★ Appropriate tools must be used when disassembling the compressor cover and internal pipe covers to avoid damage to components caused by using excessively violent or inappropriate tools.
★ When cleaning the inside of the compressor, you need to use a brush, dry cloth, etc. to remove dust on the compressor and clean debris and sediment inside the pipes.
★ After cleaning is completed, spray the compressor casing with clean water or detergent and blow dry with a dry cloth or fan. Be careful not to use too strong detergents or chemical reagents to avoid corrosion or damage to the surface or internal parts of the compressor. .
★ Check whether the parts are damaged or severely worn and need to be replaced in time to ensure the normal operation of the compressor.
★ When assembling, you need to pay attention to the strength and sequence of tightening screws to avoid damage caused by uneven stress on components or over-tightening.
★ When charging refrigerant, you need to follow normal procedures to avoid compressor failure or poor cooling effect caused by over or undercharging.
• Compressor sticking: It may be caused by poor or no lubrication, or it may be caused by slipping of the clutch or drive belt.
• Leakage: Including oil leakage and air leakage. In minor cases, only refrigerant is leaked; in serious cases, both refrigerant and refrigeration oil are leaked. If there are cracks in the cylinder of the compressor causing leakage, the compressor should be replaced.
• Poor operation: If the lubricating oil supply of the compressor is insufficient or the refrigerant pressure is too high, it will lead to poor operation and even excessive operating current. At this time, the compressor will produce a higher steam temperature, causing the refrigeration oil to burn and causing the compressor to be scrapped.
• Abnormal noise: It may be caused by slipping when the clutch is combined or caused by loose or worn transmission belt. It may also be caused by poor lubrication of the transmission pulley bearing.
• Insulation fault: such as motor coil damage, high joint damage, etc.
• Refrigeration failure: For example, the air conditioning system cannot provide high pressure or normal cooling, etc.
• High and low voltage short circuit: It may be that the controller is damaged, IGBT is damaged, etc.
• Leakage of refrigerant: The sealing ring may be damaged, etc.
Maintenance intervals for electric air conditioning compressors vary depending on usage. Generally speaking, simple maintenance is performed every 2 to 3 months, including checking the pipeline for leaks, checking the oil level and coolant level, cleaning the oil return filter, etc. Carry out comprehensive maintenance once a year, including replacing lubricating oil and oil-gas separator filter elements, replacing air filter elements, etc.
In addition, for electric air conditioning compressors that have not been used for a long time, it is recommended to start them every six months to maintain their good operating condition.
The maintenance cycle of electric air conditioning compressors needs to be determined based on actual conditions. It is recommended to conduct regular inspections and maintenance to maintain the good operating condition of the equipment, extend its service life, improve energy efficiency, and ensure safety.
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