Lowering the vacuum level of a chiller is not actually a routine operation, as generally we want to keep the vacuum level within an appropriate range to ensure the proper operation of the chiller. If the vacuum is too low (i.e., the pressure in the system is too high), it can lead to a series of problems, such as reduced cooling efficiency, increased energy consumption, equipment damage, etc.
If you notice that the vacuum in your chiller is too low, it could be caused by:
Leaks in the refrigeration system
This is a common cause of a drop in vacuum level. You can restore the vacuum level by checking and repairing the leaks.
Excessive non-condensable gases accumulate inside the refrigeration system:
these gases can come from outside the system or enter the system through leaks. You can remove these gases by vacuuming and recharging the refrigerant.
To restore and increase the vacuum level of your chiller, you can do the following:
Use a vacuum pump
Connect a vacuum pump to the refrigeration system and run it to pump non-condensable gases and moisture out of the system. This helps to reduce the pressure within the system and increase the level of vacuum.
Check and fix leaks
Use leak detection tools, such as leak detectors or electronic leak detectors, to find and fix leaks in your system. Ensure all connections, seals, and piping are intact to prevent gas leaks.
Refrigerant Charge
After the leak has been removed and the system has been repaired, recharge the refrigerant according to the manufacturer’s recommendations. Ensure that the correct type and amount of refrigerant is filled to restore the normal operation of the system.
Regular maintenance:
Perform regular maintenance on the chiller, including cleaning the condenser, checking refrigerant levels, replacing filters, etc. This helps to keep the system in good shape and performance.
Please note that it is important to follow the manufacturer’s guidelines and safety operating procedures when handling chillers and refrigeration systems. If you’re not sure how to do it, consult a professional or contact the device manufacturer’s technical support department.
