What are the precautions for laser chillers when injecting refrigerant?

As is well known, refrigerant is used in refrigeration systems to transfer heat energy and produce refrigeration effects. It is an intermediate substance in the refrigeration process. It first receives the cooling amount of refrigerant to cool down, and then cools other cooled substances. The refrigerant used in air conditioning is well-known. In fact, our laser chiller is also the same. As a refrigeration equipment, refrigerant is also a necessary substance. So, what are the precautions when injecting refrigerant into a laser chiller?

Before adding refrigerant to the laser chiller, it is necessary to vacuum and maintain pressure. The purpose of vacuum pumping is to ensure that there is no air or moisture in our system. In addition, when we draw, we must look at this pressure gauge to draw. If it is not completely drawn, we add refrigerant. If there is air inside, the pointer of our gauge will shake very badly. If we add refrigerant again, it is easy to cause ice blockage. Vacuum pumping, we usually use this type of vacuum pump to draw. The larger the vacuum pump, the faster it draws. After the other pumps are completed, we start adding refrigerant. When adding refrigerant, it is also important to note that there is air in this section of the tube. Therefore, when adding refrigerant, it is generally necessary to release some of it and let it drain the tube thoroughly before adding it to ensure its cooling effect.

Generally speaking, in actual use, it is not recommended for customers to inject refrigerant themselves under the operation of non professional technical personnel. If there are any problems, it is recommended to consult the purchasing manufacturer in a timely manner.