Four steps to quickly eliminate the high-pressure failure of a water-cooled chiller
Water-cooled chillers are required to be equipped with cooling towers and pumps. However, high-pressure and low-pressure alarms often occur due to water quality problems or debris entering the refrigeration system during use. How do we deal with them at this time? An experienced chiller is troubleshooting high pressure faults from the following four steps:
1, the general chiller high pressure alarm, the primary task is to check the cooling tower is working properly? Whether the pump is open or not. When the other units of the unit are normal and the cooling tower is not working, a high pressure alarm will occur.
2. If the cooling tower and the pump are operating normally, there is still a high pressure alarm. At this time, we must check whether the capillary / expansion valve is blocked or if there is leakage.
3. If the cooling water circulation system and the capillary/expansion valve are not problematic, if the high pressure alarm still occurs, it is necessary to check whether the water quality is clean and whether the dry filter is clogged with debris. If necessary, add water treatment equipment to the water source, or replace the filter, and clean the condenser.
4, when the above steps are normal, then we have to look at the high / low pressure table prompts the data to determine whether there is leakage of refrigerant, or there is air into.
In general, because of poor water quality, there are fibrous impurities (cotton yarn, straw, leaves, etc.) into the water distribution hole affect the cooling effect of the tower, clean and return to normal. In order to prevent the same problem from occurring, it is recommended that the water quality be treated to prevent debris from entering and affecting the normal operation of the system.