HVACP

FALL 2017

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N E W S Y O U N E E D , P R O D U C T S Y O U W A N T F or Jim Cater, project engineer at Combustion Service & Equipment Company in Pittsburgh, Pennsylvania, the most reliable way to find effective solutions for his customers is to personally test them. After servicing and repairing equipment from many customers with failed heat exchangers, clogged electronically commutated motor pumps and blown- out boilers, Cater took matters into his own hands. He wanted to find the cause of these breakdowns and develop long-term solutions to manage the health of commercial hydronics systems. DETECTIVE WORK "In our many boiler service agreements, we've seen an increase in failures due to scaling," says Cater. Seeking a total solution, CS&E analyzed the scale from failed equipment and discovered that, in many cases, it was largely composed of iron oxide, or magnetite. After testing different filters and chemical formulas, CS&E addressed the issue by partnering with Adey, a manufac- turer of magnetic filtration systems. AN IMPORTANT DISCOVERY Cater already knew that high-efficiency equip- ment operates best with clean incoming water, so the fact that this equipment was being affected by water containing magnetite wasn't surprising. What was surprising was the damage pattern. "It's seasonal," says Cater. "When you keep a boiler at higher temperatures during the heating season, you're keeping out oxygen. When you lower the water temperature and then, months later, raise it for a seasonal changeover, oxygen is first absorbed and then released out of solution. When water and oxygen contact steel piping, iron oxide is produced. Once you turn things back on, it's pushed into the system and circulated. That's when you get the most debris." THE SOLUTION: MAGNACLEAN After months of research, Cater had the answers. Now it was time to test a solution. He installed an Adey MagnaClean Professional 2XP, designed for larger residential or small commercial heating sys- tems with 1 ¼-inch NPT fittings. Because the system at CS&E is meticulously main- tained (no surprise from a company whose business is maintaining hydronics systems), Cater admits, "I didn't actually expect to find magnetite. But we've had about 3/8-inch accumulation around the magnetic rod inside the filter both times we've cleaned it." Cater says he'll recommend MagnaClean to customers struggling with magnetite. Besides effec- tively combating iron oxide, he adds, "MagnaClean installed and cleaned easily. Other brands are dif- ficult to disassemble. With MagnaClean, the lid easily twists off and, once you remove the plastic sheath on the magnetic rod, the magnetite just falls away." For Cater, the need for MagnaClean filters is clear. With the growing prevalence of ECM pumps and other HE equipment, which normally feature a lower water content and narrower waterways — plus an energy-efficient temperature cycle that mimics the magnetite-producing temperature fluctuation of seasonal changeovers — Cater predicts an increased need for the economical and effective solution of- fered by MagnaClean. CHECK OR CIRCLE #162 Seasonal changeover solution for scale in hydronics systems Working for Scale Combustion Service & Equipment Co. installed a MagnaClean Professional 2XP to test its ability to combat iron oxide. It worked, and to date the magnetic rod has twice accumulated 3/8 inch of iron oxide, successfully removing it from the system. > The MagnaClean Professional 2XP is made for 1-inch copper or 1 ¼-inch NPT pipework and features rapid in-line installation, in-line inlet and outlet ports with bi-directional fl ow. case study /hydronics NEWS YOU NEED, PRODUCTS YOU WANT Learn more about featured products at HVACPproducts.com/ market HVACPproducts.com/subscribe HVACPproducts.com HVAC & Plumbing Product News \ Fall 2017 34

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