Oil, acid & moisture Purger saves $24,000 per year!(Advertisement)

(Approximate Savings for an average Chiller)

Removes Oil, Acid and Moisture from Centrifugal Chiller's refrigerant charge and Returns the Oil to the chiller's oil sump where it belongs.

Redi Controls is pleased to announce the introduction of its new patent pending "OAM Purger." The OAM Purger is designed to remove Oil, Acid and Moisture from a chiller's refrigerant charge (its main purpose is to remove OIL and automatically return it to the chiller's oil sump where it belongs). It is common knowledge that oil build-up occurs in all centrifugal chillers. Oil invariably finds its way into the evaporator where it mixes with refrigerant, degrading system efficiency and capacity. This occurs when the evaporator tubes become coated with oil, heat transfer efficiency is retarded and drastically reduces the cooling effect. In fact, recent studies have identified excess oil on the refrigerant side of a chiller as a leading contributor to chiller inefficiency, and that the problem is widespread.

In one study, ASHRAE Research Project 601-TRP, refrigerant samples were taken from 10 operating chillers and analyzed for oil content. All of the chillers were found to contain excess oil in varying amounts from 3% (enough to significantly degrade performance) to as high as 23%. According to one OEM, as little as 1% (by weight) of oil in refrigerant could result in as much as a 3% loss in chiller efficiency.

Chiller manufacturers recommend oil concentration levels no higher than 0.5% by weight. However, in our conversation with the OEM's we learned that 12% is typical. Thus, for the typical 500 ton chiller, this could mean a 36% loss in efficiency and a penalty to the chiller owner of $24,000 per year in ...