Chiller model efficiency is steadily improving because of significant advancements such as unit designs, refrigerants and controls. However, though industrial chillers continue to evolve, there is still a need for chiller maintenance and check-up services to prevent critical situations and chiller malfunctions. Here is some advice on how to maintain and check chillers, to ensure their continued effectiveness and quality.
1. Make use of the Operation Log
The performance of the chiller should be documented on a daily basis. This record can be used to compare the chiller’s performance, to detect if there are any issues or problems with the unit.
The log can also be checked in the future to analyse the cause of any malfunction. On the other hand, it can also serve as warning for any future problems that may occur.
2. Check for Leakage on the unit
One of the major faults that prevent a chiller from performing at its best is leaking. If the chiller is leaking, air and moisture can enter the condenser. As a result, the chiller may reduce its efficiency and cooling capacity. When moisture gets stuck in the condenser, it can develop acids that may corrode the motor and other bearing parts. There is also a possibility of rust build up on the tubes which can destructively affect the heat transmission capability of the unit.
3. Maintain Clean Tubes
Tubes that are rusting can affect the efficient temperature distribution in industrial chillers. This can also be as a result of residue inside the tubes. Therefore, regular cleaning and maintenance of the condenser and evaporator tubes is needed.
4. Maintain Water Treatment
Water in the chillers is responsible for the transfer of heat. The water should be regularly treated to avoid issues like corroding, biological growth and scaling. For closed water system chillers, a single chemical treatment is advisable, while a continuous chemical treatment is suitable for open water systems.
5. Regularly analyse the refrigerant and the oil
Another effective tip, to ensure that the chiller works at its best, is to conduct a chemical analysis of the refrigerant and the oil. This can be done once a year to detect if there are any contaminations. Some chiller manufacturers offer refrigerant and oil analysis with their products.
Still not satisfied with the chiller’s performance? Call 1COLD on 01564 702 269 and arrange a comprehensive performance check.