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When the high and low pressure of the chiller are higher than normal pressure, one reason is that there is air or excessive refrigerant added to the system. At this time, it is necessary to vacuum again and add an appropriate amount of refrigerant to solve the problem. Building a platform for employees and creating value for customers is the core value of the company.
Another hot summer is the peak period for enterprises to operate refrigeration equipment. Of course, frequent operation of industrial refrigeration equipment inevitably leads to minor malfunctions.
Some companies are reluctant to seek solutions from the company that originally purchased the equipment when their chillers have expired. Below, we will introduce some operation and maintenance tips for industrial refrigeration equipment. Understanding them can not only solve small equipment problems in a timely manner, but also save equipment maintenance costs.
1. When the high pressure of the chiller is low and the low pressure is high, it is impossible for the chiller to achieve normal cooling effect. The reason is likely due to wear and tear inside the chiller pump, resulting in a decrease in power. At this point, it is necessary to replace the compressor.
2. When the chiller is working, the pressure gauge shakes: it indicates that there is water in the system. At this time, it is necessary to vacuum again, and the pumping time should not be less than fifteen minutes. If necessary, replace the drying filter to completely eliminate the water in the refrigeration system.
3. When the high and low pressure of the chiller are higher than normal pressure, one reason is that there is air or excessive refrigerant added to the system. At this time, it is necessary to vacuum again and add an appropriate amount of refrigerant to solve the problem. Another situation is poor heat dissipation, especially when the ambient temperature is relatively high, which often leads to even worse heat dissipation. The cause of this fault is usually blockage, dirt on the heat sink, insufficient fan speed, etc. Try cleaning the heat sink of the condenser.
4. When the high and low pressure of the chiller are lower than normal pressure, one possible reason may be that the refrigeration system is blocked, causing throttling at the blocked area. There will be a significant temperature difference at the throttling area, which can be detected by hand. Another reason is refrigerant leakage, which leads to insufficient refrigerant. This situation is more common, and a chiller detector must be used to identify the leaking area and replace it.
The above are some troubleshooting methods for chiller units, hoping to be helpful to everyone.
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