070 HPM 1115

HPM November 2015

WWW.HPMMAG.COM Got a story? Ring us on 01732 748041 or e-mail twood@unity-media.com BOILERS:LIGHTCOMMERCIAL Magnetic filtration in three million homes Rob Hill, business development manager at ADEY, considers how despite being unfamiliar territory for some, the use of magnetic filters can play an instrumental role in improving the efficiency of commercial systems too... Magnetic filtration for the HVAC industry was introduced to the market ten years ago by ADEY Professional Heating Solutions and has since become integral to the ongoing maintenance and protection of domestic central heating systems. However, the commercial sector of the industry is still in its relative infancy, having only been part of the market for four years. A decade of product innovation, independent research and hands-on experience from installers has proven the benefits of magnetic filtration technology in three million households in the UK. While the industry has become confident adopting magnetic filtration as part of a comprehensive water treatment programme for domestic systems, we know that while engineers maintaining commercial systems might face bigger and different challenges, the core message around protecting these systems should be the same. AVOIDING THE PROBLEM Engineers have difficultly guarding against the effects of corrosion which can cause damage to boilers, chillers, heat exchangers, pumps, pipework, valves and heat interface units. The size and scale of these systems simply makes the problem more severe and repairing these damaged component parts more expensive, so it makes good financial sense to provide as much protection as possible. If not properly protected, Magnetic filters have an instrumental role to play in improving the efficiency of commercial systems commercial systems can be hugely expensive to maintain so engineers usually see the benefit of installing a proven filter, but when maintenance budgets are being squeezed so tightly, something has to give. Finance teams often don’t appreciate the long-term benefits and cost savings the installation of an effective commercial magnetic filter can bring. This is why we need to provide engineers with the information and tools to demonstrate why it’s worth investing in from the outset. As with the domestic market, being able to demonstrate the effectiveness of a filter is key to getting buy-in. That’s why we’ve invested in a test rig which will allow us to show the effectiveness of our MagnaClean Commercial filter clearly, what it captures at different flow rates and potentially its benefits versus basket filters and dirt separators. The evidence it is providing will help us build a case for using our product over more traditional forms of filtration. Traditionally, many systems rely on basket filters and/or dirt separators for plant protection, but we believe magnetic filtration is a more effective solution for tackling black iron oxide sludge. Often a dirt/air separator will be installed in the wrong place, on the flow rather than the return, while a basket filter will be rendered less effective if the majority of the debris is magnetite, which is likely to be the case in most commercial systems. When a customer plans to have a new commercial boiler installed, we encourage the engineer to fit a filter beforehand to purge the system of magnetite. This, along with a water treatment programme, ensures that the system is ready for the new boiler, and the results generally speak for themselves. In fact, even if there’s no new boiler installation, any commercial system will benefit from retrofitting a magnetic filter and the results will be seen in the immediate removal of magnetite and, therefore, a more efficient and effective plant room. ONGOING PROTECTION As with the translation of magnetic filters from the domestic to commercial market, the same can also be said for the role that chemicals have to play as part of a total solution to water treatment. It’s important to treat the heating system as a whole and not just focus on the boiler, using chemicals and magnetic filtration together for maximum benefits. The use of a premium chemical cleaner which has been specially formulated to work with the flushing process will help provide a thorough system clean. Dosing the system with a chemical inhibitor after a magnetic filter has been installed will also provide ongoing protection. However, it’s important to have confidence in the quality, so chemical protectors with BuildCert CIAS Approval are essential as these will at least ensure the minimum level of product performance is delivered. Yet, even with this accreditation, some chemicals on the market may not have been tested outside the laboratory. To ensure good product performance, it’s essential to do your homework and know what you’re buying. For example, ADEY’s protectors have to pass more than 20 separate performance tests inside and outside laboratory conditions before reaching the market. From factories to office blocks, hospitals to leisure facilities, holiday complexes to universities and churches to housing association properties, ADEY’s magnetic filters are now helping the broadest range of demanding applications cope with the complex demands of their large scale heating systems and importantly, to maintain efficiency. ADEY’s MagnaClean Commercial filters provide protection from black iron oxide build-up 70 NOVEMBER 2015 HEATING & PLUMBING MONTHLY enquiry number 152


HPM November 2015
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