HVACP

SPR 2018

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Spring 2018 | Volume 6, Issue 1 Industries come together to reduce, prevent legionella growth A recent study conducted by Spartan Bioscience that tested cooling towers of Canadian federal government buildings showed 39 percent of the cooling towers tested positive for legionella DNA levels greater than 100 bacteria per milliliter. A veterans' home in Illinois has had 13 deaths since 2015 attributed to Legionnaires' disease outbreaks. High levels of legionella closed some shower stalls at an army medical center in Germany. These rece nt headlines point to the global concern and challenge of how to prevent more outbreaks. CDC investigations of building-associated outbreaks show the most common places for acquiring the disease are hotels, long-term care facilities and hospitals and cruise ships. In these types of buildings, the sources for spreading water droplets contaminated with legionella can include: showers and faucets of large (potable water) plumbing systems, cooling towers, hot tubs, decorative fountains and aerosolizing water features (source: ashrae.org). Luckily, the industry as a whole is making great strides to stop future outbreaks. Remember when ASHRAE released ANSI/ASHRAE Standard 188- 2015, Legionellosis: Risk Management for Building Water Systems? That was just a few years ago. NSF International, likewise, has followed suit and published a new protocol as part of its commitment to improve building water health — NSF P453: Cooling Towers – Treatment, Operation, and Maintenance to Prevent Legionellosis. The protocol allows owners and managers of buildings with cooling tower water systems to create an actionable plan with specific means and methods to manage risk of the disease. HVAC and plumbing product manufacturers are also doing their part in prevention. For example, Viega SmartLoop, an internal recirculation system, helps maintain water quality by reducing water stagnation. Water remains in constant motion, which reduces the risk of waterborne pathogens such as legionella. The Webstone Water Heater Tempering valve mixes cold water from the supply with the hot output from the heater for greater effective hot water storage. This allows water to be stored at 140 F, mitigating the risk of Legionella bacteria in the tank. Delta Cooling Towers recently introduced a line of towers constructed of antimicrobial resin. The cooling tower's fill and drift eliminator are also made from antimicrobial PVC. The antimicrobial properties prevent the growth of waterborne pathogens. Read more about this in the "Tackling Legionnaires'" case study we feature in this issue. We will continue to keep a pulse on this topic. In the meantime, check out the issue, which includes a recap of AHR Innovation Awards, a focus on products that save energy, time and money, and much more. Enjoy the issue! Michelle Tennis Managing Editor welcome Reducing the Risk STAFF STUART MANN Group Publishing Director smann@informpublishing.com EVAN MANN Publisher emann@informpublishing.com MICHELLE TENNIS Managing Editor mtennis@informpublishing.com RACHEL TULLIO Art Director rtullio@informpublishing.com CHRIS SCHMIDT Editorial Coordinator cschmidt@informpublishing.com PHILLIP SCARANO III Circulation Manager PRINTER Publishers Press, Inc. ADVERTISING STUART MANN Group Publishing Director (480) 361-6300 ext. 15 smann@informpublishing.com DAN BURKE Account Manager (732) 241-6720 dburke@HVACPproducts.com GREGG WILLINGER Account Manager (914) 588-0545 gwillinger@HVACPproducts.com For materials submissions, email to ads@HVACPproducts.com. For all other inquiries, info@HVACPproducts.com. EDITORIAL PURPOSE: HVAC & Plumbing Product News (HVAC/P) provides the reader with insights and information related to all product areas of HVAC and plumbing. SUBSCRIPTIONS: HVAC/P is published four times a year, quarterly, by Inform Publishing Group LLC, 8040 E. Morgan Trail, Ste. 23, Scottsdale, AZ 85258. Annual subscriptions are free for qualified requesters. Non-qualified subscribers will be charged $25 in the United States, $45 in Canada and Mexico and $60 in all other countries. Single copies (prepaid): $9 in the United States (plus postage), $14 in Canada and Mexico (plus postage) and $19 in all other countries (plus postage). POSTMASTER: Send address changes to HVAC/P, P.O. Box 4636, Scottsdale, AZ 85261. OPINIONS NOTICE: The opinions expressed in the articles are those of the authors and do not necessarily reflect those of Inform Publishing Group LLC. Inform Publishing Group LLC assumes no liability for any material published herein. COPYRIGHT: Copyright 2018 by Inform Publishing Group LLC. No part of this publication may be reproduced, stored in a retrieval system, or transmitted by any means, without the prior written permission from Inform Publishing Group LLC. 8040 E. Morgan Trail, Ste. 23, Scottsdale, AZ 85258 p: (480) 361-6300 f: (480) 361-6394 PHOTO: AMBER KELLEY HVACPproducts.com Spring 2018 \ HVAC & Plumbing Product News 3

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