Water-cooled screw chillers are widely used in industrial cooling water systems and commercial central air conditioning refrigeration. Its normal operation and regular maintenance are essential to ensure the cooling effect of the chiller, extend the life of the water-cooled screw chiller, and avoid unexpected shutdown of the chiller. Next, Oumal Refrigeration will introduce the maintenance points of water-cooled screw chillers in detail to help users better maintain the equipment and ensure its stable operation.

1. Regular inspection: Perform routine inspections to check for leaks, loose connections, or any signs of wear. Check electrical components, refrigerant levels, and water flow.

2. Regular cleaning

External cleaning: Regularly remove dust and dirt from the outside of the unit, keep the surface clean to ensure heat dissipation, use a soft cloth or vacuum cleaner for cleaning, and avoid using water or chemical cleaners.

Internal cleaning: Regularly check the inside of the condenser and evaporator to remove any dirt or impurities that may have accumulated. Professional cleaning agents and tools can be used to ensure internal cleanliness and prevent blockage.

3. Check the cooling system

Cooling water: Check the quality and concentration of cooling water regularly to ensure that it is within the recommended range. If the cooling water is contaminated or the concentration is too high, it may cause scaling or corrosion in the system.

Water pumps and pipes: Check the operating status of the water pump to ensure that it is operating normally. Check the pipes for leaks or blockages and repair them in time.

4. Check the filter: Clean or better the filter regularly to prevent blockage, which reduces airflow and cooling efficiency. Check the lubrication level and ensure that the bearings and moving parts are fully lubricated as recommended by the manufacturer. Check the control settings, sensors and safety devices regularly to ensure their normal operation.

5. Check the refrigeration system

Refrigerant: Check the amount and pressure of refrigerant regularly to ensure that it is within the normal range. If a refrigerant leak is found, contact a professional immediately for repair.

Compressor: Check the operating status of the compressor, pay attention to whether there is any abnormal noise or vibration, and lubricate and maintain the compressor regularly to ensure its normal operation.

6. Electrical system inspection

Wires and cables, check the integrity of wires and cables to ensure that there is no damage or aging, and check whether the wiring is firm to avoid looseness and poor contact.

Control system: Check the operating status of the control system to ensure it is normal, and regularly calibrate and maintain the control system to ensure its accuracy and stability.

7. Record keeping: Keep detailed records of maintenance activities, repairs and maintenance plans. This information helps track the long-term performance of the chiller and helps troubleshoot potential problems.

The following is the recommended maintenance schedule for screw water-cooled chillers by Oumal chiller.

The maintenance of water-cooled screw chillers is the key to ensuring the normal operation of the equipment and extending its service life. By regularly cleaning, checking the cooling system, refrigeration system and electrical system, and paying attention to other matters, users can effectively maintain the equipment and reduce the failure rate. It is recommended that users cooperate with professional maintenance personnel to perform regular professional maintenance to ensure the popular operating status of the equipment.