With the arrival of spring and warmer weather, now is the time when HVAC/R technicians will likely be servicing AC units. When you’re called upon to charge a unit with new refrigerant, you’ll use a vacuum pump to remove system contaminants first. But where do those contaminants go? Directly into the pump oil, said Totaline® Category Manager Ken Rando.

“Vacuum pump oil is one of the most rigorously used oils, and it’s used in a tough environment,” Rando said. “Vacuum pumps are designed to remove moisture and air, as well as contaminants, from the system. The accumulation of contaminants in the vacuum pump oil is normal.” Because of this, Rando said that it’s important to change the vacuum pump oil after each and every use.

“The pump oil is like the life blood of the vacuum pump,” Rando added. “In addition to providing all the lubrication and sealing of the pumping components, it also collects all the moisture and contamination of the system.”

“Because the vacuum pump oil holds the contaminants in suspension, they float around in the vacuum pump system. If you don’t remove them, they can significantly shorten the life of your vacuum pump, which is why you should change the oil every time,” Rando said, adding that replacing a vacuum pump can be a hefty expense – a new one can cost between $300 and $400.

For best results, Rando recommends running the pump for at least 15 minutes before changing the oil. “The reason for that is to get the moisture and contaminants floating around and suspended, rather than leave them laying at the bottom of the tank.” He also said that it is imperative to use a good quality vacuum pump oil, and make purchases in quart and gallon sizes.

Where can technicians find vacuum pump oil? Totaline sales centers offer the top brands, including Totaline, Yellow Jacket, and Calgon vacuum pump oil. “These are three good names, and you can be assured you’re getting a quality vacuum pump oil,” Rando said.

Don’t forget – when you shop Totaline sales centers for your vacuum pump needs, you can get FREE STUFF. During 2009, when you purchase an F.A.P. product and any Totaline vacuum pump or Totaline refrigerant recovery unit all on invoice, you’re eligible to receive a FREE pair of Totaline safety shades. Check out www.totaline.com for more details.

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