To determine whether the vacuum level of the chiller is normal, the following methods can be used:
Check the instruction manual
Different models of chillers have different requirements for vacuum level, so you should first refer to the instruction manual to understand the standard range of vacuum degree for this type of chiller.
Use professional testing instruments:
Capillary pressure method
This is a relatively simple method that provides a rough judgment of the vacuum level in a refrigeration system. By measuring the pressure change in the system, it is possible to get an overview of the vacuum level.
Mass spectrometry
This is a more sophisticated detection method that accurately measures the vacuum level in a refrigeration system. Using a mass spectrometer, the composition and concentration of the gas in the system can be accurately detected to determine whether the vacuum level is normal.
Observe the operating status of the unit
If the vacuum level of the chiller is insufficient, it may lead to a series of problems, such as reduced cooling effect, increased compressor load, increased current, etc. Therefore, it is possible to indirectly judge whether the vacuum degree is normal by observing the operating status of the unit, such as the refrigeration effect, compressor current, condenser temperature and other parameters.
Simple judgment method
If you want to check whether the vacuum degree is normal after adding refrigerant, you can make a simple judgment by observing whether the evaporation saturation temperature and condensation saturation temperature of the unit are equal to the water temperature, or the difference is within 0.3 °C.
It should be noted that the above methods are for reference only, if you need more accurate judgment results, it is recommended to ask professionals for testing and maintenance. At the same time, in order to ensure the normal operation of the chiller, the vacuum level should be checked and maintained regularly.
