Oil Sight Glasses
Oil sight glasses used to view the status of refrigerant:
1. to observe the refrigerant is normal, colors, normal should be clear and transparent. Such as opacity, black indicates internal wear causing dirt and needs cleaning and replacement of refrigerant.
2. observation of moisture content. Some sight in the mirror, provided with a moisture content of instruction. According to mark the label judgment.
3. to observe the refrigerant flow. There should be no air bubbles under normal working condition, air bubbles indicates lack of refrigerant.
(And many of the company's units are basically this gives province, leading to the direct consequence is that the water was supposed to replace the filter drier, but do not know, ultimately water acid, corrosion compressor systems, affecting the life of the whole system)