Reasons for the high low pressure value of the chiller

Reasons for the high low pressure value of the chiller

In the application of industrial refrigeration, the chiller is used in conjunction with production and processing equipment, so it runs for a long time. If the customer lacks professional maintenance and routine equipment maintenance for the chiller in daily life, and less There are periodic replacement of consumables, even after the installation is complete, the frequency of the chiller failure problem will be very high, so the okmarts.com editor will teach you something about the chiller Troubleshooting methods, for example, if the chiller has high pressure on the low pressure side, how to judge and analyze the possible causes?

1. If the chilled water temperature of the medium on the side that needs to be cooled is too high when the chiller is turned on, it may be hot water above 40℃, then the low pressure value of the refrigerant of the chiller will be very high. The refrigeration continues to run, after the chilled water temperature will slowly drop, the low pressure value of the refrigerant of the chiller will gradually decrease;

　　2. If the refrigerant charge of the chiller is added too much, the high pressure value and low pressure value of the chiller refrigerant will be higher;

　　3. If the capillary tube or expansion valve of the throttling device of the chiller is damaged, and the throttling and pressure reduction of the refrigerant fails, the low pressure value of the refrigerant of the chiller will be higher;

4. If there is no significant change in the high and low pressure values when the chiller is turned on, that is, there is no compression ratio, and the high and low pressure values of the chiller in the shutdown state are similar, it may be that the compression components in the compressor are damaged. The refrigeration compressor cannot be compressed;

　　 The above-mentioned points can summarize the possibility that the chiller has a high low pressure value.