Daily maintenance method of low temperature chiller

Daily maintenance method of low temperature chiller

Low-temperature chillers are generally used to cool down some reactors such as pharmaceuticals and chemical industries. This type of chiller is generally used all year round. The daily maintenance methods of  low temperature chillers include cleaning condensers and cooling towers, checking pipes and valves, maintaining electrical systems, preventing condensation in condensers, replacing filter screens regularly, paying attention to operating parameters, and regular maintenance and maintenance. These maintenance methods can ensure the normal operation of the unit, prolong the service life, and improve the performance and efficiency of the unit. When performing maintenance, please pay attention to safety, cut off the power and follow the relevant operating regulations.

Routine maintenance of  low temperature chillers is very important, here are some suggested maintenance methods:

1. Clean the condenser and cooling tower: Regularly clean the dust and dirt on the surface of the condenser and inside the cooling tower. The surface of the condenser can be cleaned with a brush or compressed air. Keeping the cooling effect of the condenser can improve the performance of the unit. The inside of the cooling tower can be washed with a high-pressure water gun. Clean cooling towers can help improve cooling efficiency.

2.Check pipes and valves: Regularly check the pipes and valves of the chiller for blockage, leakage or damage, and repair or replace damaged parts to ensure the normal operation of the system.

3.Check the electrical system: Regularly check whether the electrical system of the chiller is normal, including wires, switches, plugs and other components. If there are damaged or aging parts, they need to be repaired or replaced in time.

4. Prevent condensation in the condenser: Condensation often occurs in the condenser of the low-temperature chiller. The condensation water should be removed in time and a good ventilation environment should be maintained to prevent condensation water droplets from entering the unit.

4.Antifreeze: Water-cooled low-temperature chiller (generally the outlet water temperature is set at 0°C to -40°C). When this type of unit is out of service and the ambient temperature is below zero, check the concentration and density of the refrigerant in the evaporator to prevent freezing. The cooling water system can run the cooling pump for 24 hours or drain the cooling water.

6. Regularly replace the filter screen: According to the usage, replace the filter screen of the chiller regularly to keep the water clean and prevent dust and dirt from clogging the pipes and affecting the performance of the unit.

5.Pay attention to the operating parameters: regularly check the operating parameters of the low-temperature chiller, including cooling water temperature, pressure, flow, etc., to ensure that the unit is in normal operation.

6.Regular maintenance and maintenance: routine maintenance of the unit. Generally, the water-cooled low-temperature chiller will be used for one to two years to do a routine maintenance (including replacement of refrigeration oil and oil filter drying filter) to ensure that the unit is more stable and efficient.


The above are some routine maintenance methods for  low temperature chillers which can help maintain the normal operation of the unit and prolong its service life. Please note that when performing maintenance and maintenance, please ensure that the unit has been powered off and follow relevant operating and safety regulations.