E N E R G Y- E F F I C I E N T S O L U T I O N S F O R H I G H - P E R F O R M A N C E B U I L D I N G S
Moving forward. Panasonic and Sanyo—two companies with a shared commitment to quality, service and environmental sustainability—have now joined forces. Introducing the Panasonic Air Conditioning Group. Going forward, the Sanyo comprehensive line of HVAC solutions will not only carry the Panasonic brand but also the renowned strength of Panasonic product development, manufacturing and distribution. The result? An unprecedented line-up of quiet, powerful and energy-efficient solutions. r 9,000 to 42,000 BTU/hr Single Split and Multi Split air conditioners and heat pump systems. r 36,000 to 288,000 BTU/hr ECOi Variable Refrigerant Flow (VRF) heat pump and heat recovery systems. r Indoor units to include; wall mounted, ceiling suspended, ceiling recessed, one way and four way cassettes, low/medium/high static ducted, plus floor mounted models. To locate your local Panasonic distributor or apply to become a dealer, visit www.panasonic.com/aircon
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February
FEATURES
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Iowa State Laboratory Humidification Yields Results
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2012
Effect building envelope and air handling designs took Effective comfort f most of the way from theory to reality in ISU’s Hach Hall. An existing in-house deionized water supply and a new fogging system finished the task and saved an estimated 22% in humidification costs. — BY JOE ZWERS
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HYDRONICS / BOILERS Gateway City Apartment Building Goes Single-Pipe
This large complex is welcoming a host of new arrivals, from new boilers and chillers to an overhaul of its hydronic strategy. Avoiding a whole lot of drilling was one benefit of their new design choice. Balancing first cost, maintenance costs, and the system itself were additional positives for keeping all 225 units comfortable and affordable. — BY DAN VASTYAN
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PIPING Modular Mechanical Seals Protect HVAC Piping And Duct Systems
How can you really, really seal any gap between your pipe and the rest of the wall that just had a hole put in it to accommodate the pipe’s path? That’s a question we haven’t asked in these pages before. Learn about the available technology, bolt/nut combinations, and more to maintain a safe long-term relationship between these elements of your building systems and your building.
DEPARTMENTS
Advertiser Index . . . . . . . . . . . . . . . . . . 73 Back2Basics. . . . . . . . . . . . . . . . . . . . . 10 Building Automation. . . . . . . . . . . . . . . 42 Case In Point . . . . . . . . . . . . . . . . . . . . 14 Classifieds . . . . . . . . . . . . . . . . . . . . . . 70 Commissioning. . . . . . . . . . . . . . . . . . . 24 Computers & Software . . . . . . . . . . . . 60 Editor’s Note. . . . . . . . . . . . . . . . . . . . . . 8 Glossary . . . . . . . . . . . . . . . . . . . . . . . . 73 Issues & Events . . . . . . . . . . . . . . . . . . 62 Literature . . . . . . . . . . . . . . . . . . . . . . . 69 Products . . . . . . . . . . . . . . . . . . . . . . . . 66 The Facility Files. . . . . . . . . . . . . . . . . . 26 Tomorrow’s Environment . . . . . . . . . . . 74
— BY JAMES E. DELAHOYDE ENGINEERED SYSTEMS (ISSN 0891-9976) is published 12 times annually, monthly, by BNP Media, 2401 W. Big Beaver Rd., Suite 700, Troy, MI 48084-3333. Telephone: (248) 362-3700, Fax: (248) 362-0317. No charge for subscriptions to qualified individuals. Annual rate for subscriptions to nonqualified individuals in the U.S.A.: $115.00 USD. Annual rate for subscriptions to nonqualified individuals in Canada: $149.00 USD (includes GST & postage); all other countries: $165.00 (int’l mail) payable in U.S. funds. Printed in the U.S.A. Copyright 2012, by BNP Media. All rights reserved. The contents of this publication may not be reproduced in whole or in part without the consent of the publisher. The publisher is not responsible for product claims and representations. Periodicals Postage Paid at Troy, MI and at additional mailing offices.
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Paul Ehrlich and Ira Goldschmidt look at the future of lighting control and LED lighting.
4
En gi n e e r e d S y stem s
February 2012
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[email protected].
The Power of Innovation Introducing the only commercial size instantaneous water heater above 250,000 BTU/HR. Once again, AERCO leads the way in commercial water heating technology with the introduction of Innovation, its newest line of premium water heaters. Featuring a tankless design, advanced condensing/ modulating technology, and a scaleresistant heat exchanger, Innovation delivers performance and economic advantages to any system.
Here’s why Innovation stands out from the crowd: • +/-4° temperature control, thanks to feed-forward sensing • Up to 99% efficiency and unmatched turndown • High reliability • Reduced standby • Low NOx and cycling losses • Small footprint
• Available in three sizes: 600, 800 and 1060 MBH
To learn more about the Innovation family of water heaters, visit www.aerco.com/innovation4
AERCO International, Inc. 800.526.0288 • email
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Evans J. Lizardos, P.E. Lizardos Engineering Associates, P.C.
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Howard McKew, P.E., BuildingSmartSoftware.com
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Vincent A. Sakraida, P.E., LEED® AP Western Engineering & Research Corporation
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February 2012
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