Learn how an oil purger can help you regain lost chiller capacity in your refrigeration system and save thousands of dollars each year.
Oil enters the chiller's refrigerant charge as the refrigerant is circulated through the chiller's compressor. On low pressure chillers -- typically those that use R-11, -113, -114 and -123 refrigerants -- the oil is used as a lubricant for the centrifugal pump, and it seeps through the compressor's seals and becomes entrained in the refrigerant charge. This same process occurs with high pressure centrifugal chillers, which most commonly use R-12, -22 and -134a refrigerants. High pressure screw chillers, which also use R12, -22 and -134a refrigerants, utilize oil for lubrication, as a coolant and as a sealing mechanism on screw rotary tips. This oil inevitably finds its way into the refrigerant charge.