Engineered Systems February 2012

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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c

contents

February

FEATURES

 28

Iowa State Laboratory Humidification Yields Results

28

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

 34

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

 38

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.

 42

Paul Ehrlich and Ira Goldschmidt look at the future of lighting control and LED lighting.

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En gi n e e r e d S y stem s

February 2012

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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.

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February 2012

:KR6D\V
Fujitsu’s new Hybrid Flex Inverter line provides individual comfort to up to 8 zones at once. Let’s face it, one temperature does not please all, which is why Fujitsu’s new line of Halcyon Hybrid Flex Inverter (HFI) models allows up to 8 indoor units to be connected to one outdoor unit, providing 8 individual zones of heating or cooling. • • • • •

Up to 17 SEER energy efficient operation lowers utility bills Flare connections make HFI models easier to install One Group Remote Control can control all 8 zones Long piping lengths of up to 230 feet increase installation options Inverter technology regulates the compressor speed to its optimum energy usage, producing higher refrigerant performance with less power consumption

With Fujitsu’s line of Halcyon Hybrid Flex Inverter systems, you really CAN please everyone.

To find out how you can please everyone and how to become a Halcyon Dealer visit

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Editor’sNote BY ROBERT BEVERLY

BOILER RULES: A SLOW SIMMER The prolonged MACT process has hardly been a simple recipe.



With our next Today’s Boiler scheduled for May, I don’t want to wait that long to keep you apprised on the latest in the ongoing saga of finalizing and implementing new boiler regulations. Even last month’s ABMA meeting is not the latest, but ABMA president Randy Rawson has sent his members (including ES) a good summary of the present situation. So with thanks to him, I am providing an excerpt of his update below. If you have trouble keeping up, don’t feel bad. In addition to the presentations at the recently-concluded Annual Meeting of ABMA’s Commercial Systems Group and my comments during the Annual Meeting General Session last Monday, USEPA has responded further to the recent court ruling that vacated the agency’s stay on its Maximum Achievable Control Technology (MACT) rules. “After an initial review of the court’s decision, EPA is not aware of any sources that might be adversely affected,” said Gina McCarthy, assistant administrator for the USEPA Office of Air and Radiation, in a statement. While the EPA will continue to work with permitting authorities and industry members on the boiler MACT rule, initially issued in March 2011 and later halted through a stay provision issued by the USEPA in May 2011, McCarthy also said the agency will soon issue a no action assurance letter to those affected by the MACT rules. USEPA will not enforce any of the administrative notification requirements in the old rules for a period of time, while it works to finalize the rules by the spring of this year, according to McCarthy. The most recent revisions were published in the Federal Register on December 23rd. McCarthy said the USEPA still looks forward to finalizing the rules later this year, noting that the agency intends to keep the health benefits of the original rules, while reducing the cost of compliance to industry. “The standards would focus on the less than one percent of boilers that emit the majority of pollution from this sector,” McCarthy said. ABMA strongly

supports the USEPA in its efforts to bring the current Reconsideration rulemaking process to an end by this spring or early summer. Revisions, stays, and no-action letters, oh my. As Rawson goes on to surmise, the boiler industry and many affected users (along with, I presume, the environment itself) would really appreciate getting this wrapped up. However, he also cites an organized opposition comprising certain users and the congresspeople of their acquaintance, who are pushing yet other proposals to dilute or delay any changes. With a little luck, maybe we’ll be able to share this episode’s exciting conclusion in the May Today’s Boiler. LOGO LOGIC

but I think organizations in general are overdoing this impulse to shorten their names. Sooner or later, we’re going to raise a generation of children who have no idea what KFC stands for. ES

SEPTEMBER 12-13, 2011 Engineered Systems & Building Intelligence Group Falls Church, VA Call For Papers! Deadline is March 31. Submit your abstract at:

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Thanks to the scheduling gods’ sense of humor, I’m writing this at the Palmer House Hilton in Chicago during the winter ASHRAE meeting. One of the noteworthy changes here is the new logo, which was unveiled at their annual press breakfast. Incoming Society president Tom Watson explained that while the new logo simplifies and refreshes the look, it also keeps the familiar hexagonal motif. The color also transitions for just a bit on one side from the traditional blue to green — located on the “leading edge,” you might say … very clever, ASHRAE, I see what you did there. On a side note, they’ll also start referring to themselves simply as ASHRAE, foregoing the full name in general business. Everyone has seen this branding trend in other areas of life. I think it’s probably fine here given its specialized audience (ES has simpy written “ASHRAE” for some time),

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February 2012

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Back 2 Basics Based on Cx-3 ATC/FPT and TAB-3 software Last month, we continued our previous October-NovemberDecember Back2Basics series by introducing the addition of a new dedicated outdoor air system (DOAS) application as an energy conservation measure. We also tested readers on commissioning three of the many automatic temperature control (ATC) sequences of operation. This month’s B2B is to air balance the new system and to test readers on air balancing this system at maximum design air flow. Not included in this test are the following TAB requirements: • Air balance at minimum design airflow of DOAS unit • Air balancing of the exhaust air systems • Air balancing of terminal units receiving dedicated outdoor air to each of these units. • Water balancing of the entire hot water heating system • Water balancing of the DOAS dehumidification sequence of operation • Water balancing of the entire chilled water system • Water balancing of the new energy recovery water system The energy retrocommissioning team continues to include the school’s energy conservation committee, facility manager, ATC operator, commissioning engineer, TAB engineer, and, if possible, a LEED® Accredited Professional. Added to the energy retrocommissioning team last month was the HVAC contractor responsible for the energy conservation measures (ECM) that include the addition of an energy recovery water system and the DOAS unit and associated duct distribution. Going forward, the team, and, more specifically, the facility manager, will be responsible for collecting the incoming utility bills and measure them to the past utility bills to compare the difference in energy usage. In addition, the facility manager should also trend the follow space comfort performance to also demonstrate the benefits achieved from this energy retrocommissioning project: • CO2 levels within the building • Occupied space temperature and humidity levels • Unoccupied space temperature and humidity levels We discussed three prerequisites to pursuing energy retrocommissioning opportunities in the past, which are: • Collect the utility bills and convert the energy used into Btuh/ sq ft/yr • Based on the results, if it makes good business sense, proceed further with a potential energy retrocommissioning opportunity. • Equally important is the documenting of the basis of design (BofD) for the original HVAC design and the future HVAC design (once the energy retrocommissioning solution plan is mutually agreed upon). To complete this month’s TAB tasks, the TAB engineer shall complete the following: • Document the existing central hot water and chilled water system performance so as to be able to benchmark and document water balancing improvements when comparing the existing systems to the new, energy retrocommissioning results.

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En gi n e e r e d Sy stem s

February 2012

BY HOWARD MCKEW, P.E., C.P.E.

• Document the existing exhaust air systems to determine what exhaust fan modifications will be needed with the addition of exhaust air filters and energy recovery water coils. These changes will have been identified in the original ECM assessment and would take into account the changing out of fan motor, motor starter size, etc., based on exhaust fan curves, performance data, and increase in fan system static pressure • Create system flow diagrams for the retrocommissioned hot water and chilled water systems incorporating pertinent operating data (piping pressure drop from pump discharge back to the pump inlet, pipe velocity, pressure drops through equipment, etc.). (Note: not part of this month’s B2B test) • Create air system flow diagrams for the new DOAS installation and the associated exhaust systems incorporating pertinent operating data (static pressure, velocity, pressure drops across equipment components, etc.). Before the TAB engineer can complete the flow diagram, she must also review the new BofD document to clearly understand how the system is to work. It is important to note the TAB engineer must complete the balancing of these retrocommissioned systems before the commissioning engineer can complete his ATC/FPT pass-fail documentation (see last month’s B2B for example). The TAB engineer should review record drawings, existing and new equipment shop drawings, and, if necessary, make a “best guess” as to the original design calculations (e.g., pressure drop across the filter) based on her experience with air and water system pressure drops. This information is inputted into the TAB system flow diagram TAB-3 software to document the estimated “design” pressure drop readings. Next, the TAB engineer picks up the tools and completes the air and water system readings, documenting the “actual” flow, pressure drop, and velocity within the software program. Now the auditors have design-to-actual data to analyze. This month’s test is for you to select the correct answers in each remarks column next to each air pressure drop reading. Refer to the B2B page 2 TAB system flow diagram and note design-toactual findings. The answers can be found at www.esmagazine.com. After documenting the current operating conditions via the ATC/FPT and TAB processes, the energy retrocommissioning team should now begin the performance trending to support the reasons this project was funded and to assist in collection ROI data to justify the client’s investment. When coordinating the ATC/FPT-TAB initiative, the auditors should use an equipment startup checklist to complete a static condition assessment of the new DOAS unit and to document system readiness. The TAB engineer should use her own system readiness checklist which is identified as a pre-TAB checklist. See “The Facility Files” column for sample pre-TAB checklist for an energy recovery coil within ERU. Any installation deficiencies identified via the checklist need to be added to the corrective action log and corrections made before the balancing and commissioning of the new DOAS can proceed.

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 Energy Retro-Cx EF-1

EF-Typical

EF-Last

DE-Typ

DE-Last

DE-1

ERC-Typ

ERC-1

ERC-Last

F-1

F-1

ERSWTT

ERRWTT

F-1 DOAS

D-1

OAT

VFD

Data Pt. 3

Design

Actual

Flow

14,000 CFM

13,985 CFM

Pressure

- 1.4" SP

- 1.8" SP

Velocity

400 FPM

400 FPM

UV-1st

UV-Typ DOATyp

Note: Each UV to be retrofitted to have return air damper open 100% and existing outdoor air damper also open 100% to accept DOA as provided via 2-position air terminal

UV-Last DOALast

RA

Actual 13,985 CFM

Pressure

+ 3.0" SP

+ 3.4" SP

Pressure

+ 2.6" SP

+ 2.6" SP

Velocity

1,000 FPM

1,125 FPM

Velocity

1,800 FPM

1,800 FPM

Data Pt. 5

Design

Actual

Data Pt. 8

Design

Actual

Flow

14,000 CFM

13,985 CFM

Flow

1,200 CFM

1,200 CFM

Pressure

- 2.8" SP

- 3.8" SP

Pressure

+ 0.5" SP

+ 0.6" SP

Velocity

400 FPM

400 FPM

Velocity

800 FPM

800 FPM

Actual

Pressure

- 0.4" SP

- 0.8" SP

Pressure

- 1.8" SP

- 2.8" SP

Velocity

400 FPM

400 FPM

Velocity

700 FPM

700 FPM

- 0.1" SP

400 FPM

heating coil

Design

13,985 CFM

980 FPM

- 1.25" SP

400 FPM

14,000 CFM

Design

- 0.1" SP

- 1.25" SP

Velocity

Flow

14,000 CFM

1,000 FPM

Pressure

Data Pt. 7

Flow

Velocity

1,190 CFM

Actual

Data Pt.4

Pressure

Actual

1,200 CFM

13,985 CFM

13,985 CFM

Actual

Design

Flow

Design

14,000 CFM

13,985 CFM

Data Pt. 9

400 FPM

14,000 CFM

Flow

Design

- 0.35" SP

400 FPM

Flow

Actual

14,000 CFM

- 0.35" SP

Velocity

Data Pt. 6

Design

Flow

Pressure

SD-1

Data Pt. 2

Data Pt. 1

1,190 CFM

RA Direct Outdoor air Supply

TT-3

TT-2

TT-1

SAF-1

CC-1

PHC-1

Actual

1,200 CFM

cooling coil

RHC-1

ERCDOAS

Design

Flow

DOA1st

VFD Outdoor Air

Data Pt. 10

FDPLast

Exhaust From Associated Room Unit Ventilator

ERSP-1

Month 2- The Energy Conservation Opportunity: K-12 School Building With New DOAS and Existing Unit Ventilator System Application — Air And Water Readings And Solution Plan

Month 2: K-12 School with New DOAS and ERU Application Measurement Point 1 Air Intake Plenum

2 At Filter Discharge

3 At Energy Recovery Coil Discharge

4 At Preheat Coil Discharge

5 At Cooling Coil Discharge

6 At Supply Fan Discharge

7 Downstream of Reheat Coil

8 At Furthest Point In SA Duct

9 At Exhaust Air Filter Inlet

10 At Exhaust Air ER Coil Outlet

ANSWERS:

12

Criteria

On-Maximum Cooling

Remarks

Design

Actual

Flow Static pressure (SP) Velocity

14,000 cfm minus 0.1 in. 500 fpm

13,985 cfm minus 0.1 in. 540 fpm

A. OK per design. B. CFM and SP are excessive. Installation needs further review. C. CFM is excessive.Installation needs further review.

Flow SP Velocity

14,000 cfm minus 0.4 in. 500 fpm

13,985 cfm minus 0.8 in. 470 fpm

A. OK per design. B. CFM and SP are excessive. Installation needs further review. C. SP is excessive. Issue PM workorder to change filter.

Flow SP Velocity

14,000 cfm minus 1.4 in. 500 fpm

13,985 cfm minus 1.8 in. 470 fpm

A. OK per design. B. CFM and SP are excessive. Installation needs further review. C. SP is excessive. Issue PM workorder to clean coil.

Flow SP Velocity

14,000 cfm minus 1.8 in. 450 fpm

13,985 cfm minus 2.8 in. 420 fpm

A. OK per design. B. CFM and SP are excessive. Installation needs further review. C. SP is excessive. Issue PM workorder to clean coil.

Flow SP Velocity

14,000 cfm minus 2.8 in. 2,600 fpm

13,985 cfm minus 3.8 in. 2,430 fpm

A. OK per design. B. CFM and SP are excessive. Installation needs further review. C. SP is excessive. Issue PM workorder to clean coil.

Flow SP Velocity

14,000 cfm plus 3.0 in. 1,000 fpm

13,985 cfm plus 3.4 in. 1,125 fpm

A. OK per design. B. CFM and SP are excessive. Installation needs further review. C. SP is excessive. Installation needs further review. (e.g., discharge duct restriction)

Flow SP Velocity

14,000 cfm plus 2.6 in. 1,800 fpm

13,985 cfm plus 2.6 in. 1,800 fpm

A. OK per design. B. CFM and SP are excessive. Installation needs further review. C. CFM is inadequate. Installation needs further review.

Flow SP Velocity

1,200 cfm plus 0.5 in. 800 fpm

1,190 cfm plus 0.6 in. 800 fpm

A. OK per design. B. CFM is inadequate. Installation needs further review. B. CFM and SP are excessive. Installation needs further review.

Flow SP Velocity

1,200 cfm minus 1.25 in. 400 fpm

1,190 cfm minus 1,25 in. 400 fpm

A. OK per design. B. CFM and SP are excessive. Installation needs further review. C. CFM is excessive. Installation needs further review.

Flow SP Velocity

1,200 cfm minus 0.35 in. 400 fpm

1.190 cfm minus 0.35 in. 400 fpm

A. OK per design. B. CFM and SP are excessive. Installation needs further review. C. CFM is excessive. Installation needs further review.

TO VIEW AND DOWNLOAD THIS MONTH'S ANSWERS, VISIT WWW.ESMAGAZINE.COM.

En gi n e e r e d Sy stem s

February 2012

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CaseInPoint Chilled beams maintain comfort, look of historic hall



Energy efficiency and historic preservation are rarely synonymous. More often than not, one must be compromised for the sake of the other. Fortunately, the University of Arkansas found a way around such compromises when it came to the restoration and mechanical renovation of the school’s beloved Peabody Hall. Built nearly one hundred years ago, this soon to be certified LEED® building, with its original tin ceilings and lovingly restored clay tile roof, is the last place you might expect to see chilled beams. However, it was this technology, that actually helped architects and engineers maintain the historic character of the Peabody Hall’s interior spaces. Prior to the 2010 renovation, the building’s HVAC system was horribly ineffective. For decades, the massive, yet poorly ventilated, building had been absorbing moisture into its interiors like a sponge. The existing AHU, supplied with chilled water through the campus’ central plant, was not able to extract enough moisture from the building during the lengthy Fayetteville, AR cooling season. The plaster walls were starting to bubble and, on several occasions, remediation crews were called upon to remove mold from the interior walls. “At that point, we decided ‘okay, it’s a health issue now,’” said Robert Beeler director of design and construction services. “We knew we either had to do some serious renovations or tear the building down. Overwhelmingly, the staff, faculty, and others wanted to keep the building.” The challenge was modernizing the comfort system of the building without completely gutting and destroying its precious historic attributes. So the University hired experts Allison Architects, a firm that specializes in historic restorations, to lead the $8.5 million, all-inclusive renovation project. TME, Inc. (TME) of Little Rock, AR was hired as the mechanical engineer, the firm that also made the unexpected proposal for chilled beams. CHILLED BEAMS? IN THE SOUTH? Architecturally, chilled beams were the perfect choice. They would not only allow Peabody Hall to maintain the integrity of its antique tin ceilings, they would also drastically reduce the amount of invasive duct and pipe work required to update the building’s heating and cooling system. Still, Beeler had his doubts. “I thought, ‘You’ve got to be out of your mind! You’re going to hang a radiator over my head with no drip pan underneath?’ Yes, we were very skeptical,” said Beeler. What Beeler did not yet grasp was the very crucial role that a Semco Pinnacle® Primary Ventilation System would play in the chilled beam application. The Pinnacle unit utilizes advanced heat wheel technology to dehumidify and precondition supply ventilation air — an important part of the puzzle since chilled beams handle sensible load only, not latent (humidity) loads. The combination of the two technologies has been successfully applied in facilities throughout the U.S., including the South. To remove all doubt that the combined systems could meet the university’s needs, Semco invited Beeler and his staff, along with TME to the Semco facility in Columbia, MO where they could speak with the manufacturer’s engineers and actually see and experience for themselves how the two technologies worked together. 14

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A VAV energy recovery system preconditions the air and provides critical humidity control at this historic building.

“We toured the lab in Columbia and saw how the system is put together,” said Beeler. “We’re all engineers here so we understood it once we saw it.” THE (NEW) PEABODY HALL HVAC SYSTEM A single 9,000-cfm Pinnacle VAV energy recovery system was selected to supply pre-conditioned air to approximately 250 chilled beams located throughout the 27,230-sq-ft Peabody Hall and to completely handle the building’s latent load. While the unit provides pre-conditioned air during both the heating and cooling season, it is the cooling mode that is the most critical in terms of moisture control. The Pinnacle unit incorporates both a total energy wheel and a passive dehumidification wheel, along with a heating and cooling coil. In typical cooling mode, supply air is cooled and dehumidified by passing through the total energy recovery wheel, which rotates through the relatively cool, dry exhaust air stream leaving the “passive” dehumidification wheel. The supply airstream is further cooled and dehumidified by passing through the cooling coil. Before it is supplied to the space, the supply air is dehumidified even further, and moderately reheated as needed, by passing it through the passive dehumidification wheel. This air is supplied to the chilled beams, where it mixes with air that has been drawn up and into the chilled beams through induction (room) air. Before this mix occurs, the induced room air is cooled (or heated) via the chilled beam water coils to achieve space setpoints. It then mixes with ventilation air inside the chilled beam and is discharged into the room. Airflow to the active chilled beams is typically one-half to one-third of that required by a VAV or constant volume system at peak cooling conditions. This reduces the size of ductwork and made it possible for Peabody Hall to implement the new system with minimal changes to the building aesthetics. The chilled beams are installed flush with the ceiling and painted to match the tin tiles so that they practically disappear. “We wanted you to be able to walk into this building and feel like you were in a 1914 school building. We did that,” said Beeler, adding that the building occupants have been delighted not only with the renovation but also the comfort.

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CaseInPoint DRYING THINGS OUT After going through an entire cooling system, Beeler is happy to report that the system has actually surpassed their expectations in terms of humidity control. The Pinnacle unit was operated at maximum capacity throughout the first cooling season to remove all the excess moisture in the building.

“We wanted to make sure we got all of the moisture out of the building and also deal with any infiltration through the walls and brick. We found we were able to get the humidity down to 30% to 35% for the entire building by running the unit at maximum capacity. Next year, we’ll back off that and still easily maintain 40% to 45% humidity,” said Hamid Habibi, Man-

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Boilers help North Carolina brewer boost capacity



GUARANTEED.

MINIMUM 90% THERMAL EFFICIENCY AT 160 F. RETURN, 20 F. RISE, MAX. INPUT, TF150-300

aging Principal for TME. “Next year, we think we’ll be able to increase setpoints to 74°F and still maintain comfort while achieving more energy efficiency.” However, when it comes to Peabody Hall, it was never just about the numbers. It was also about restoring a beloved campus icon and keeping an important part of the University’s history in tact. The architectural and engineering firms made that happen, and as a result, students and faculty get to experience that history every day in greater comfort than ever before.

En gi n e e r e d Sy stem s February 2012

The largest craft brewer in North Carolina, Highland Brewing Company has grown considerably since it began operation in Asheville as a basement start-up using retrofitted dairy equipment in 1994. Today, Highland occupies a large, efficient brewery that produces an array of popular ales anticipated to exceed 25,000 barrels this year. Integral to Highland’s expansion was its recent choice of a gas-fired LX-100 boiler from Miura, a manufacturer of ultra-low NOx modular on-demand steam solutions. As Kevin Wheeler, director of operations explains, there are multiple reasons why the Miura LX-100 is an excellent ingredient in Highland’s formula for achieving a combination of improved operational efficiencies, fuel economy, and environmental sustainability. “When we decided to increase our brewing capacity we spoke to other craft brewers and learned of Miura’s great reputation,” Wheeler recalls. “Miura met our needs in terms of energy savings, on-demand steam, low emissions, and a smaller footprint.” Microprocessor-controlled for precision operation, Miura boilers save an average of 20% annually on fuel costs over other boilers for typical installations. This savings is due to Miura’s unique “once through” fintube design, which conserves fuel, water, and physical space. Even with a smaller footprint, however, Miura’s exclusive design produces bhp outputs comparable to much larger units. Utilizing its

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CaseInPoint unique “floating header” design, Miura’s boilers are engineered to go from a cold start to full steam in less than five minutes. This ondemand steam-generation feature enables users to precisely match load fluctuations as they occur, instead of consuming energy while idling a boiler in stand-by. “We use our LX-100 to heat our brewing water (known as ‘hot liquor’), we use it on our keg line for heat/steam/sanitation, and we use it for our boil and our mash in the brewing process,” Wheeler says. “Sometimes we need lots of steam; other times we don’t. A conventional-style boiler would need to run constantly to maintain its peak output level. With the Miura LX-100, however, we can shut it off all weekend, blow it down, drain it out, and save gas. On Monday morning we turn it on and have full steam by the time we walk over to the brew house.” A STRONG ENVIRONMENTAL COMMITMENT Coupled with the lower energy usage of Miura boilers is the reduced emissions of nitrogen oxides (NOx), a major contributor to air pollution, as well as CO2, the most prevalent of greenhouse gases. Miura boilers achieve low-NOx performance by reducing the temperature of the boiler’s flame, which in turn reduces the amount of excited nitrogen atoms available to bond with oxygen to form nitrogen oxides. As a result, NOx emissions are reduced to around one-quarter of what traditional fire-tube boilers emit. This enables Miura boilers to comply with even the most stringent air-quality regulations.

Algae

Leaves

Airborne Particles Pollen

PROBLEM:

Cooling Tower

Heat Exchanger

Rust Water Filter

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Automatic Self-Cleaning

With regard to reduced CO2 emissions, Miura’s technology leverages superior operating efficiency to contribute significant carbon abatement with a payback. Highland reports that its Miura LX100 boiler saves up to $1,200 per month in fuel costs, even with a 20% increase in production, an added keg line that has increased the demand for process steam, and a recent decrease in the price Highland was paying for natural gas. Wheeler notes that the Miura LX-100’s low NOx/low CO2 output is directly in line with the company’s strong commitment to environmental sustainability.

Water filter optimizes heat transfer efficiency

Insects

WATER FILTERS

A new boiler system saved this brewer money on fuel costs and reduced its CO2 emissions.

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Input 105 at www.esmagazine.com/instantproductinfo

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CaseInPoint “We are just an hour from the Great Smoky Mountains National Park, and acid rain is a huge concern for us here,” Wheeler says. “We like to ‘walk the walk’ as well as ‘talk the talk’ about being environmentally responsible, and our Miura boiler helps us do that. This means a lot to us as a company, and we have found that a strong environmental commitment also makes good economic sense. We have saved on our gas bill dramatically with our Miura boiler. We’ve been able to increase production by a third while reducing our energy costs to less than what they were prior to installing this boiler.” MONITORING, DIAGNOSTICS, AND CONTROL Like the rest of the manufacturer’s offerings, the boiler also features Miura’s BL microcontroller, which keeps track of multiple individual monitoring points. An advanced diagnostic system, it can identify any potential challenge to smooth operation and recommend a solution on an easy-to-read display. A “sliding-window feature” records events four seconds before they occur for fast and effective trouble shooting. This system can also be accessed via the Internet (Miura Online Maintenance, or “MOM”) for remote monitoring and diagnostics. “The monitoring and computer control capabilities of the Miura LX-100 were another important selling point,” Wheeler states. “Currently we’re just using the BL Micro Controller interface on the boiler, which is very helpful. We may, however, someday want direct monitoring from Miura’s Atlanta headquarters utilizing the Miura MOM’ service. As Highland grows, we may also want to install a second boiler and use their MI [multiple installation] controller to link the two together. Even though our boiler room is small, we could put two LX-100s in the same footprint as one conventional 70 hp conventional-style boiler.”

Energy audit, personal guarantee sell management on booster system retrofit



Veteran New York plumbing contractor Evan Samouhos was so confident in the potential energy savings offered by a new domestic water booster pump system that he fronted the purchase himself. “We had absolutely no doubt that we could slash half of the operating costs of a commercial domestic water boosting application by using intelligent, demand-based pump technology,” recalls the 32-yr industry veteran and president of West Orange, NJ, Evco Mechanical. “The problem, however, was convincing a price-conscious customer to invest in new technology instead of rebuilding the decades-old pressure boosting pumps and motor drives.” The application supported the domestic water delivery system for half of the Parkview Towers, a 684-unit affordable housing complex in West New York, NJ. Built in 1974, and located blocks from the Hudson River, the pumping station delivers domestic water to one of the twin 24-story apartment building towers. “In recent years, VFD technology has become more affordable and critical in bringing intelligent speed control to a number of commercial pumping applications, including domestic water boosting,” explains Peter Frangiskou, vice president of Dolphin Equipment Corporation, an independent manufacturer’s agent based in Haworth, NJ. “The ability to scale output based on demand was the primary reason we knew we could significantly re-

A new pump system reduced power consumption by 92% at this apartment complex.

duce energy consumption for this building.” Convincing the enduser was not as clear cut, however. “We were initially skeptical of the recommendation to completely replace the system because it was still viable,” recalls property manager Blanca Alvarez, CPO, FHC. “It’s hard to justify capital investments, especially in this economy, for replacing equipment that is operating as designed.” “I told the building owner that if the new boosters didn’t reduce energy consumption by 40% to 50%, they didn’t have to pay me a dime,” says Samouhos, who concedes he had achieved similar head-turning results since he began using the preconfigured boosting stations in 2007. CONTROL THE FLOW Demand for water in multi-story buildings, such as the Parkview Towers can vary significantly throughout the day, and this unpredictable flow places extraordinary demands on pumping equipment. High-rise buildings — including hotels, multifamily, office and other institutional applications –— require pressure boosting equipment to raise incoming municipal water pressure to serve the top floors. Samouhos, a licensed plumbing, electrical, and HVAC contractor serving metropolitan New York, recommended replacing the single building’s existing water pressure boosting system to overcome two system shortcomings: 1) the frequent malfunction of mechanical pressure regulating valves that were prone to clogging; and 2) the inability to match pump/motor output with flow demand. He turned to Dolphin Equipment to help identify an option that would efficiently meet system demand. Samouhos installed the Grundfos BoosterpaQ Hydro MPC, an integrated pressure boosting system that offers up to six vertical multi-stage CR pumps in parallel operation designed to optimize pumping efficiency over a range of flow rates. Ideal for water supply systems as well as industrial and irrigation applications, these integrated pumping systems utilize an advanced controller that along with VFD-controlled motors, adjust pump speed and number of pumps in operation to meet frequently changing system demand. Instead of using constant speed pumps regulated by mainte-

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CaseInPoint nance-prone pressure reducing valves, the new system would deliver the minimal pump output necessary to achieve optimal performance — all without direct human intervention. REDUCING CONSUMPTION The tower’s original pressure boosting system utilized three constant-speed pumps: two 40 hp pumps and a 20 hp backup pump. With no pump-sequencing software in place, the two primary 40 gp pumps operated continuously unless alternated manually by the building engineer during periods of low demand. The new boosting station employs two 15 hp pumps with VFD-controlled motors. A single 15 hp pump is designed to handle the tower’s full pressure load; but if demand exceeds this capacity, the second pump will provide additional pressure. In addition to matching pump output to flow demand, the new duplex boosting station, yielded significant energy savings. “In calculating the flow rate requirements for the building, we determined that we could not only eliminate an entire pump, but also downsize the remaining two — from 100 total hp to 30 hp, without sacrificing performance,” reports Samouhos. “Despite removing 70 hp from this system, the computerized control, demand-based performance of the new pumping station averages just 30% capacity.” Nonetheless, upon seeing the reduced specifications, building management doubted the system could perform as designed. To illustrate the savings of moving from a constant speed pump

to a variable, demand-based platform, Dolphin Equipment commissioned an energy audit of both apartment towers. The audit would compare the power used by the duplex boosting station against the conventional triplex system installed in the companion building. The audit, paid for by Grundfos and Dolphin Equipment, bore out Samouhos’ original intuition, and helped to justify his replacement-versus-repair recommendation. “Our team recorded a 92% drop in power consumption in the building that was fitted with the energy-efficient boosting station over the conventional system installed in the building’s other tower. If we extrapolate the energy used during this one-week period, this level of savings would yield approximately 121,067 kWh annually, or an annual utility cost reduction of nearly $18,160, based on an average area utility rate of $0.15 per kWh, said Tony Sinacore, applications engineer with the energy audit firm SDM Metro, based in Ramsey, NJ. Sinacore estimates that the total project savings over a 15-yr average pump lifespan are just under $275,000. The level of savings, in fact, was so dramatic that the contractor installed similar VSDs in the companion tower to begin matching pump output with demand. “Building management was stunned that we could deliver the same level of performance using just one-third the pumping horsepower of the old system,” recalls Samouhos. “Every day the engineers would come in to see if the system was collapsing under the crushing demand, only to find the Grundfos booster station barely breaking a sweat.”

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CaseInPoint Family-owned business’ production solution runs through new piping



As former commercial fishermen who decided to develop their own line of organic oils, the Barlean family was no stranger to innovation. A manufacturer of nutritional lipids products based in Ferndale, WA, family-owned Barlean’s Organic Oils LLC grew so rapidly that it soon needed its own fish-oil production facility. Building a manufacturing center of this type proved to be no small feat. While not a clean room, the facility needed to be extremely sterile to produce all-organic, non-genetically modified oils for customer consumption across the United States. The new facility also required a precise A/C system as well as a chilled-water piping system to control heat created during the oil-production and gel-capping processes. Additionally, the piping system had to be durable, resistant to pressure and stress cracking, and virtually leak-free. Recognizing the importance of plumbing in an oil-production facility, Mike Fox of CPI Plumbing & Heating (Mount Vernon, WA) was determined to find the right piping-system solution for the Barlean family’s business. NAVIGATING PROJECT CHALLENGES The project’s largest complication was that the new manufacturing facility already was in the finishing stages by the time Fox arrived on site. “All other trades had completed their work, so installing a chilled-piping system was going to be a challenge, to say the least,” Fox recalled. Navigating a suspended ceiling as well as completed wall and floor finishes while trying to install chilled-water piping systems on three oil-production lines was not going to be easy. Fox’s next challenge was choosing a piping material. Because of limited installation room, the facility’s finished interior, and the weight of the pipe, “welded steel was out of the question,” Fox said. Additionally, “steel would require the use of additives, as would copper. I found fault with all of the materials that I or other contractors with whom I had worked had previously installed. Plastic seemed like the obvious choice; however, many PVC systems have failed due to stress cracking.” HEAT FUSION TO THE RESCUE Fox then remembered a phone call from an Aquatherm manufacturers’ representative, Phil Sterlington with Ridgeline Mechanical Sales (Gig Harbor, WA), who recently had used Climatherm polypropylene-random (PP-R) piping in a reclaimed water project. “I remembered his excited explanations of the product, its versatility and ease of installation, and its warranty, which was very important to us,” Fox said. “We wanted a piping system that would last the life of the facility with no worry of warranty issues.” When installed by Aquatherm-trained and certified technicians, the pipe and fittings carry a 10-year, multimillion-dollar warranty covering product liability, personal injury, and property damage. Although Barlean’s maintenance manager, Mark Lemna, had never heard of Aquatherm’s PP-R piping prior to this project, he “solely relied on the recommendations of the installer. The piping

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Heat-fused pipe helped this organic oil business expand its production line.

came highly recommended.” Climatherm piping uses heat-fusion to form connections, a process often used in natural-gas piping because of its reliability. Heat fusion bonds both sides of a joint into a single, homogenous material without the use of chemicals or mechanical connections, which eliminates systematic weaknesses and fail-points in the pipe. The seamless heat-fusion connections, combined with PPR’s resistance to corrosion and abrasion, eased leakage concerns. With a maximum operating pressure of 30 psi, the chilled-water piping system used approximately 1,000 ft of Climatherm, consisting mainly of 3-in.-diameter supply and return chilled-water mains with 2-in.-diameter piping running out to AHUs. Featuring VFD pumps, the system was going to be experiencing pressure changes based on flow requirements — yet another reason Climatherm caught Fox’s eye. “We are confident Climatherm succeeded in resolving any issues we could think of concerning the liquid product used and the pressures the system would encounter,” Fox said. “The Climatherm product seemed like a no-contest decision.” Other mechanical equipment used in the project included a Bry-Air exterior AHU, a Canatal interior vertical floor-mounted AHU, a Carrier chiller, and an EnviroSep pump skid pack. MAKING THE ‘RIGHT CHOICE’ When the project was completed, “we fired the system up, and everything worked perfect,” Fox said, adding that the plumbing aspect of the job came in on budget. “We were able to install the system without a hitch,” he said. “The install was even easier than I had planned. Following the factory procedure for testing, which is very extensive, we were happy to find our system was completely leak-free.” Additionally, Lemna plans on using Aquatherm Climatherm when the facility expands its production lines. “We haven’t had any problems at all with the system,” he said. “It is holding up well.” ES

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Commissioning BY REBECCA ELLIS, P.E.

SINGLE-ZONE AHU Trend Analysis On to a new case after solving a museum mystery …



In this column, I will describe the “issue” disclosed through analysis of the trend graph included in my January 2012 column. I will also introduce a new system and show its trend graph, leaving it up to the reader to discover the operational “issue” illustrated in the graph. The answer will be given at the start of next month’s column.

200.0

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JANUARY 2012 TREND LOG ANALYSIS Last month’s trend graph was 24 hrs in the life of a large museum AHU in a northern climate. The constant volume system delivered constant 55°F supply air to terminal reheat coils serving multiple temperature control zones. These temperature control zones were primarily art galleries open to the public during the day. The AHU consisted of a mixing box with airside economizer, heating hot water preheat coil, chilled water coil, humidifier, and supply fan. The trend graph showed two distinct operating modes: the left side of the graph was in occupied mode when the fan was on, and the right side of the graph was in unoccupied mode when the fan was off. The system clearly went into a shutdown mode between 8:30 p.m. and 6:30 a.m., with the outside air dampers fully closed and the return air, mixed air, and discharge air temperatures essentially equal to each other. Both the heating and cooling coils were commanded closed. All of that was very good from an energy perspective, although the practice of turning off air-handling equipment at any time in a museum is suspect from a collections preservation perspective. During occupied hours, the most distinctive and dismaying feature of the trend graph was the cycling of the heating and cooling valve control signals. This was illustrated by the sawtooth pattern in the red (heating) and blue (cooling) trend lines. In its attempt to maintain a 65° discharge air temperature setpoint, the hot water valve modulated fully open such that the discharge air temperature rose to 75° to 80° before the valve was signaled to close. The high discharge air temperature then caused the chilled water valve to modulate fully open to try to lower the temperature to 65°. The cooling valve opened too quickly and resulted in the discharge air temperature dropping below 55° before being signaled to close. This restarted the cycle with the hot water valve modulating open again. This trend represented a classic out-of-tune control loop that is extremely easy to see in graphical format but very difficult (or painfully time-consuming) to observe in the field. The reheat coils downstream of the supply fan and the large gallery spaces receiving the supply air dampened the effect of the wide swings in discharge air temperature such that space temperatures and relative humidities remained relatively steady. Those were the most important performance requirements of the museum HVAC system and, thus, it was assumed to be working well. The problem uncovered by this trend graph analysis was an insidious type of simultaneous heating and cooling. Every time the heating valve opened too far and overheated the supply air, the cooling valve compensated to remove that excess heat and ended up overcooling the supply air. With outside air temperatures between 50° to 60° during the occupied trend period, the airside economizer should have been

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100.0

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AH-08\HTG-O

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VALUE

AH-08\DAT-SETP VALUE

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-100.0

FIGURE 1.

able to provide the 65° discharge air without any mechanical heating or cooling at all. When the temperature control loop was retuned via software, the elimination of unnecessary heating and cooling resulted in an estimated $12,500/yr in energy savings. NEW SYSTEM This month’s trend graph is of a single-zone, constant volume, mixed AHU with airside economizer, heating hot water coil, and chilled water cooling coil for discharge air temperature control. The discharge air temperature setpoint is reset based on space temperature setpoint. This graph has a selected number of points with two different vertical axes (one on the left and one on the right) to help see and evaluate the pertinent points more easily than with a single shared axis. TRENDS The BAS was used to trend the following sensor and device data at 15-min intervals for a little more than two weeks in the fall of 2011: Left Hand Vertical Axis: • Mixed air (outside air) damper command (blue) • Heating valve command (red) • Outside air temperature (gray) • Mixed air temperature (orange) • Discharge air temperature setpoint (purple) • Discharge air temperature (green) ES Ellis is president of Questions & Solutions Engineering Inc. (Chaska, MN). E-mail her at [email protected].

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TheFacilityFiles

CARBON FOOTPRINT ❑ Carbon Neutral ✔ ❑ ❑ ❑ ❑

BY AMANDA MCKEW

ENERGY RECOVERY UNIT: ERC-1/ERC-DOAS Date: November 2011 Building: K-12 Educational facility Floor: Ground floor Year installed: 2011 Inspected by: AEM Serial number: 1110101028 Equipment Type: ERV with water-to-water energy recovery coil Manufacturer: X-Y-Z Model: ERCP Size: 80 gpm Hp: 30 hp Volts: 460/3/60

McKew is a senior project engineer with InterPro Solutions. Reach her at [email protected].

EXISTING CONDITIONS AND DEFICIENCIES

Y

N NA

Y

N

NA

❑

✔ ❑

❑

Is a high-efficiency motor installed?

❑

Is there a localized disconnect?

HVAC

✔ ❑ ❑

❑

ELECTRICAL

Is unit in good condition? Is there sufficient capacity/water flow?

✔ ❑ ❑

❑

Is there sufficient capacity/airflow?

❑

❑

Has pressure testing of pipe distribution been completed?

❑

✔ ❑ ❑

❑ ❑

✔ ❑ ❑ ✔ ❑ ❑

❑ ❑ ❑ ❑

❑ ✔ ❑ ✔ ❑ ✔ ❑

❑

✔ ❑ ❑

✔ ❑ ❑ ❑

✔ ❑

✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑

✔ ❑ ❑

Does the pump have a VSD? Are the electrical starters (pump and unit) labeled?

Does the pump/piping system show signs of water leaks?

PLUMBING

Does the unit casing show signs of air leaks? Is the insulation installation complete for piping? Is the insulation installation complete for coil casing and unit?

Are there localized drains near the equipment? Is there a manual propylene glycol fill and remote holding tank installed?

Equipment and piping labeled with applicable tag and flow arrows?

MAINTENANCE

Flow sensors installed and monitoring flow? Temperature sensors installed and functioning? Is the piping installed per detail? Is there access around equipment? Is there any excess vibration at the energy recovery pump?

✔ ❑ ❑ ❑ ❑

System flow diagram mounted by unit? O&M manual secured at unit or on file? Workorder completed? Is there a service contract for the pump and unit?

Is there any excess vibration at the energy recovery unit? All ATC devices appear in good condition?

END OF EQUIPMENT USEFUL SERVICE LIFE (USL)

USL (YRS) 1

USL (YRS) Motor is x yrs old

20

Motor USL benchmark is _

New

Controls are new DDC

16

Controls USL benchmark is _

New

Unit is new serving existing HVAC system

20

Unit USL benchmark is _

STANDARDS AND CODE ISSUES

Y N NA ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑

Y N NA ✔ ❑ ❑ ❑

Does unit meet current codes?

Does unit/system meet current energy code?

Is emergency power a requirement?

ENERGY CONSERVATION

Y

N NA ✔ ❑ ❑ ❑ ✔ ❑ ❑ ❑

Y End of USL, replace with new VSD high-efficiency pump? Can unit/system be retrofitted to meet latest energy code?

❑ ❑

N

NA ✔ ❑ ❑ ❑

❑

N

NA

✔ ❑ ❑ ✔ ❑ ❑

❑ ❑

Consider DDC to optimize control system management Rebalance water system

NOTES

Y

N NA

✔ ❑ ❑ ✔ ❑ ❑ 26

❑ ❑

Y 1. Can equipment be readily renovated? 2. Unit basically operates 24/7/365.

En gi n e e r e d Sy stem s

February 2012

3. Are unit controls interactive with building ATC/computer? 4. Are there energy meters (gpm, etc.)?

Input 82 at www.esmagazine.com/instantproductinfo

Effective building envelope and air handling designs took comfort 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

C

hemistry laboratories are high-energy affairs. In addition to the equipment they contain, they need plenty of outside air to remove chemical fumes, which adds significantly to the heating, cooling, and humidification loads. Iowa State University’s (ISU) new Hach Hall is an exception. Opened in the fall of 2010, the $52 million research facility incorporates numerous features to reduce its environmental footprint including rainwater capture, separation of laboratory spaces from classrooms, and the use of a fogging system for humidification, rather than a traditional boiler. “It is a complicated building by its very nature and consumes a lot of resources,” says Mark Stephenson, ISU’s construction manager for facilities planning and management. The building received LEED® Gold certification, “something which is hard to do on a chemistry building or a laboratory.”

SEALING THE ENVELOPE Starting out as Iowa Agricultural College and Model Farm in 1858, the college now enrolls 28,000 students from more than 100 countries, hosts a Department of Energy research laboratory, and has one of the ten largest undergraduate engineering programs in the country. Iowa State’s Department of Chemistry serves more than 4,000 students each semester, and its graduate program in analytical chemistry is ranked among the top 20 in the country by U.S. News and World Report.

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ISU’s 259,000-sq-ft Gilman Hall has housed the Chemistry Department since 1916. But to meet expanding needs, the university decided to build a second chemistry building, Hach Hall, just north of Gilman Hall. The 136,000-sq-ft structure, designed by OPN Architects of Cedar Rapids, IA, in collaboration with laboratory design consultants Ellenzweig (Cambridge, MA) has three floors above ground and one below, along with a mechanical penthouse that holds the air handling and other equipment. The ground floor hosts the main public functions including teaching laboratories and pre-lab classrooms. The two higher floors contain research laboratories and faculty offices, while vibration and light sensitive research laboratories are in the basement. As with other new buildings on campus, ISU was interested in energy efficiency. Its College of Design already had King Pavilion, the first higher education building in the state to receive LEED Platinum certification. One key factor for Hach Hall was ensuring that the building envelope was well sealed. “The construction manager on the job brought in someone to analyze those envelope details,” says Stephenson. “The contractors worked well together, and the details that usually are problematic were resolved.” They put this to the test during the construction, once the exterior wall and window systems were in place and the crews commenced work on the interior details. Stephenson says that based on calculations, they installed three temporary heaters to maintain the temperatures in the building. But through the winter, they never

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1257(&‡QRUWHF#KXPLGLW\FRP Input 144 at www.esmagazine.com/instantproductinfo

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Certificate No. 002419

Iowa State Laboratory Humidification Yields Results

needed to run more than one of the heaters. “The building is well insulated and extremely tight,” he says. “There was very little air infiltration, which is a credit to the people who provided the building envelope.” CONTROLLING THE TEMPERATURE Designers desired similar efficiencies for the permanent heating. Laboratories are contained in one section, with the offices, conference rooms, and lobby all on the west side of the building. This allowed one set of HVAC systems for the laboratories containing chemical fumes and another set for those the spaces where human health and comfort were the primary considerations. The laboratories, in addition to the normal room ventilation systems, have more than 260 fume ventilation hoods. “The air system is primarily for ventilation, not heating or cooling,” says Matt Jesson, project manager for Waldinger Corp, which installed the AHUs. “If they were only dealing with the thermal load, there would be much less air going through there, but because of the exhaust, they have to use 100% outside air.” Henneman Engineering’s Iowa City office designed the air-handling system. A single custom Phoenix Manufacturing, Inc.(PMI) air handler provides the heating and cooling to the lobby, conference rooms and other spaces on the west side of Hach Hall. The laboratory portion of the building is divided into four quadrants — northeast, northwest, southeast, and southwest. A separate 60,000-cfm PMI air handler is used for each of the quadrants. In order to reduce energy usage, each of these four AHUs included a plate heat exchanger to recover heat from the laboratory air before it was exhausted from the building. By using heat exchangers that were more efficient than ASHRAE minimum standards, together with zone presence sensors and VAV systems on the fume hoods, Henneman Engineering projected that the air-handling system would use about half the energy of a base code-compliant laboratory building. The four AHUs that service the laboratories include reheat coils and operate around the clock throughout the year. The heating and cooling are controlled by thermostats that modulate dampers in a mixing box for the zone. Taking an example of where the room thermostat is set at 68°F, when the AHU is in cooling mode and the room temperature is above 68°, the return air thermostat controls the air handler supply temperature by modulating it between 57° and 65°. If the return air temperature is 79°, the supply air will be 57°; if the return air is 74°, the supply air will be 65°. In heating mode, again assuming a 68° setting, the air handler supply air temperature will be 65° and the room thermostat will turn on the reheat coil to maintain 68° in the room. AHU5, which services the offices, uses a mixed air system rather than 100% outside air and operates similarly in the cooling mode. Since there are no reheat coils, however, the supply air is set at 85° and the flow modulated by the return air thermostat. Normal operating hours are 7 a.m. to 7 p.m. Monday through Friday. During the off hours, the system will maintain the room temperature so it doesn’t go below 65° or above 80°. MAINTAINING MOISTURE Because the laboratories use 100% outside air, it greatly increases the amount of humidification needed during the cold months. “In the winter in Iowa, bringing in the cold air and heating it

30

En gi n e e r e d Sy stem s

February 2012

up you end up with very dry air,” says Jesson. “The humidity in the building would be 5% without the humidification.” To achieve a design relative humidity of 30%, the humidification system needs to operate about 3,500 hrs/yr. Not all of this is at full capacity; the full load humidifier’s hours per year were calculated at 1,767. For the 200 hrs/yr the ambient temperatures were below zero, 4,600 to 4,800 lbs water/hr are required for the four main AHUs. As outside temperatures rose, the need for humidity gradually drops until, at 45°, the humidity load is only 740 lbs/hr. To provide the humidity in the most efficient manner, ISU decided to use a high-pressure fogging system. “The user required a percentage of relative humidity, and our research indicated fogging was the most effective way,” says Stephenson.

By using heat exchangers that were more efficient than ASHRAE minimum standards, together with zone presence sensors and VAV systems on the fume hoods, Henneman Engineering projected that the air-handling system would use about half the energy of a base code-c compliant laboratory building. To provide 4,800 pounds of steam per hour, a gas boiler system would need 6,792 MBtuh (thousands of Btuh). For the 1,767 full load hours required per year, this would translate to an estimated 13,677,004 MBtuh/yr, including flushing and distribution losses. At $1 per 100 cu ft (CCF) this would cost $136,770 per year. A high-pressure fogging system from Mee Industries Inc. (Irwindale, CA) sized to produce 4,800 lbs of humidity/hr, would use 10 kW, or 17,670 kWh/yr. At an electricity price of $0.065/kWh, the total price would be a projected $1,149/yr. However, because the fogging system would lower the air temperature, requiring additional heat input, the total cost comes to $106,703/yr, or about $30,000 less in energy costs than using a gas boiler. Stephenson says that one other factor that led to selecting a fogging humidification system was that the chemistry building already had a system for producing deionized water. “Producing clean water is one of the key pieces of producing a trouble-free humidifier,” he says. “Because the science lab already had that system in place, we were able to double use it, cutting the cost.” KEEPING COMFORTABLE ISU installed a single Mee high-pressure fogging system to service all five air handlers. The system uses two 5-hp CAT Pumps model FM-700-B1051P triplex (three piston) pumps with ceramic plungers, each producing 7 gpm at 1,000 psi, together with Baldor Electric Company motors with VFDs, CAT pumps Prrrrr-O-Lator pulsation dampeners, Rockwell Automation Allen-Bradley SLC 500 programmable controllers, and Danfoss A/S Nessie VDHT 2/2 way solenoid

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tridium.com Input 157 at www.esmagazine.com/instantproductinfo

Iowa State Laboratory Humidification Yields Results

valves. For redundancy, there is an additional pump in case one of the two primary units goes down or is being serviced.

“Prod duciing g cllean watter is one of the key pieces of producing a trouble-ffree humidifier,” Stephenson says. “Because the science lab already had that system in place, we were able to double use it, cutting the cost.” ” The fogging system, like the rest of the HVAC system, is tied into the campus’s Johnson Controls Metasys BAS. Depending on the need for humidity in one of the quadrants, the appropriate number of solenoid valves open up, allowing the water to flow through a series of 0.75- and 0.50-in. stainless steel pipes to the nozzle arrays in the air handler. Each of the arrays consists of nine 0.50-in. lines with a total of 94 fogging nozzles. “We had a fairly limited space in terms of fitting the humidifiers into the AHUs,” says Jesson. “There was just enough room between

the heating coils and cooling coils to insert these humidifiers.” The two active pumps work in conjunction to serve all five air handlers and a zone panel at each AHU provides the ability to vary the capacity at each air handler. Initially, one of the pumps will operate, and then as the demand grows, the second pump kicks in. “Both pumps are on a variable-frequency drive, so it doesn’t take very long for the second pump to kick in, then they will both operate at a lower speed just to maintain the 1,000 psi in the line,” says Don Stanek, president of Millennium Technology, Mee’s local representative who helped Henneman Engineering write out the project. “Then as you have more nozzles open up, and more humidity delivered to the air handler, the line pressure drops, so the VFD picks up speed on the pumps in parallel and provides more water flow to maintain 1,000 psi.” Construction on Hach Hall was completed in 2010, and the building was dedicated in October. Stephenson says that he has been in the laboratories with the ventilation hoods running and is satisfied with the way the air handling system works. “It’s actually quite comfortable,” says Stephenson. “It works well.” ES Zwers is a freelance writer based in Glendale, CA, who specializes in business and technology.

Input 183 at www.esmagazine.com/instantproductinfo

32

En gi n e e r e d Sy stem s

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VapaVoid by Vapac

Learn more about Vapavoid Input 316 at www.esmagazine.com/instantproductinfo

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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

W

hen it’s initial cost vs. operating costs of any mechanical system replacement or overhaul, there’s almost always a trade-off. For large apartment buildings, whether heating and cooling costs are included in the rent or billed separately, it will ultimately be on the tenant’s dime. Low operating costs are important, but that usually conflicts with the owner’s main goal: limiting initial cost. In the interest of keeping units occupied and renter turnover low, comfort and controllability needn’t be ignored. But you can’t have the best of all worlds. Or can you? In early 2010, designers at Jarrell Mechanical Contractors devised a successful, all-encompassing solution for a mechanical retrofit at Council Tower apartment building in St. Louis. After careful research and consideration, they settled on a plan to install a single-pipe heating and cooling system. “Finding a single-pipe solution was the key, but we found an answer during the design process that worked theoretically. The single-pipe mechanical recipe had solved problems at some of our other smaller jobsites, so we focused our attention on that,” said Dewayne Jefferson, P.E., and vice president of engineering at Jarrell Mechanical Contractors. The multi-phase mechanical system retrofit for the 27-story,

34

En gi n e e r e d Sy stem s

February 2012

180,000-sq-ft building and its 225 apartments hinged on successful installation of Taco’s LoadMatch single-pipe hydronic system. The LoadMatch-operated pipe network is connected to all terminal fancoil units, an effort that draws to a close later this year. LESS IS MORE “Not having to drill new holes through 26 concrete floors was pretty good incentive to give a one-pipe system fair consideration at Council Tower,” said Jefferson, who earned his M.S. in mechanical engineering from the University of Illinois at Urbana-Champaign in 1990. “We saved ourselves the time and hassle of drilling an additional 400 holes.” Jarrell has 100 service trucks in the greater St. Louis area. With over half a century in the industry, the firm capably handles a wide range of commercial HVAC, plumbing, and sheetmetal work. Although they’re based in Missouri, the firm’s technicians have completed projects as far away as Hawaii, Puerto Rico, Texas, and Washington. “The original hydronic heating and cooling systems — installed in 1969 when the building was constructed — was a two-pipe changeover system which shared basic supply and return lines to fancoil units,” said Jefferson. “At any given time, the entire building was either in heating or cooling mode. With the two existing floor

Input 62 at www.esmagazine.com/instantproductinfo

Gateway City Apartment Building Goes Single-Pipe

FIGURE 1. The Council Tower building in St. Louis underwent a major upgrade with the installation of a single-pipe heating and cooling system designed to save money and increase tenant comfort.

penetrations — and now with new technology that permits heating or cooling using only two pipes — we’re able to run one heating and one cooling pipe to more than 400 fancoil units without the need to drill new holes.” Since the old heating and cooling system shared the same pipes, shoulder seasons weren’t comfortable for tenants at Council Tower, especially during those days when the sun was baking the south and west walls of the building. Swapping back and forth from heating to cooling on days with broad temperature swings was out of the question. With an entire building in heating or cooling mode, temperature control within living spaces was largely at the mercy of the building manager’s discretion. “Tenants were continually calling the maintenance department,

36

En gi n e e r e d Sy stem s

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complaining about the heating and cooling systems,” said Phil Krull, senior vice president and project manager at E.M. Harris Construction, the general contractor on the project. “Some would call and say it was too hot while others would call, complaining that it was too cold, literally minutes apart.” “We’ve hired Jarrell as a sub before,” said Krull. “When the bids came in, Jarrell’s looked great. Their experience is hard to beat, too.” “What we really needed was a system that would be able to efficiently and simultaneously deliver heat to one area of the building and cooling to another,” said Jefferson. “We needed to accomplish this while, at the same time, limiting installation time and cost — these were the deciding factors. The one pipe LoadMatch system really fit the bill.” The system is the union of two old ideas enhanced by new technology. The old ideas are singlepipe distribution and primarysecondary pumping. The new technology consists of the use of maintenance-free wet rotor circulators. The primary distribution system is a single-pipe loop; the secondary distribution system is a decoupled secondary piping loop for each terminal unit in the system. Within the system that Jarrell employees installed, wet rotor circulators provide the specified flow to each terminal unit at all times. At Council Tower, 300 cfm fancoils use approximately 2.5 gpm, and the 600 cfm units use 4.5 gpm. Although the Council Tower jobsite is the first time Jarrell has used LoadMatch for air conditioning, they’ve used the system for several heating jobs. “We were certain we wanted to go with a single-pipe system for this job,” said Jefferson, “When Walt Steiner, president of our manufacturer’s rep firm, Behrmann Company, invited Mike Jarrell and me to tour Taco’s manufacturing facility in Cranston, RI, it reaffirmed our decision.” “We learned a lot from experts there while on our tour of the facility. A key interest for us was to learn even more about LoadMatch technology,” said Jefferson. “I was surprised to learn just how much the flow of chilled water must increase as it makes its way downstream.” The temperature difference between the chilled water supply temperature and the entering air temperature decreases as water travels through more fancoil units. Obviously, this decreases the latent, or dehumidification, capacity of the coil. To offset this, as the chilled water supply temperature increases along the system, the flow rate going to the fancoil unit must be increased in order to get the latent capacity out of the coil. Depending on the capacity curves of the fancoils being used, this increase could be as much as 100% for a given unit size. This increased gpm also causes an increase in pressure drop through the fancoil unit. These two things must be considered to determine whether the individual fancoil unit should be increased in size in order to gain the required latent load, as well as keep the pressure drop to a level that can be easily handled by the LoadMatch pump. HIGH PERFORMANCE “We’re keeping an average of eight guys on the job,” continued Jefferson. During phase one, Jarrell’s crew installed a 275-ton Trane chiller on the ground level. Through the use of eight, 3-in. risers and a 25-hp Taco KV vertical inline pump, chilled water is delivered to all the fancoils throughout the building. The chiller is designed

for 598 gpm of 40°F water. Outdoor design temp is 95° drybulb, 76° wetbulb. The heating distribution is almost identical, aside from its much lower volume. Water from two, 1.5 million Btu gas-fired, modulating condensing boilers is piped through eight, 2-in. risers and pressurized with 15-hp pumps. At the outdoor design temp of 0°, each boiler is designed to supply 72 gpm of 160°. “Both boilers include two separate heat exchangers,” said Jefferson. “Depending upon the building’s heating requirement, this allows for better part load efficiency.” Using existing floor penetrations, the chilled and hot water lines, both well insulated, run up the building in parallel. Both hot and chilled water lines are equipped with Taco 4900 Series air and dirt separators; 4 in. for the heating side, 6 in. for cooling. The device is equipped with stainless steel “pall” rings and basket assemblies to remove system water micro-bubbles while separating out dirt particles from the flow, easily flushed through a blow-down valve. “One challenge we faced at the jobsite was keeping the existing systems online as long as possible,” said Steiner. “One remedy was to break the project into four phases.” The first, and by far the lengthiest, phase included installation of the new chiller and boilers. The building was split into four vertical sections. This limited the number of risers that were out of commission at any one time. The remaining phases will go more quickly, without the large amounts of mechanical equipment to remove and replace. While primary heating or cooling is off to a given area, Jarrell supplied window air conditioning with electric heaters. Domestic hot water is supplied by two 600-MBtuh boilers that heat a 650-gal storage tank. Two sets of booster pumps located in the basement keep pressure high as the hot water loop heads toward the top floor. “We have one set of duplex booster pumps for the cold water and a separate set for domestic hot water,” said Jefferson. “All four pumps are 7.5 hp units.” Since the heating and domestic boilers are both located in the basement, using natural-draft boilers would have been more difficult to install. Getting the flues up and out of the building and having to bring the required combustion air into the mechanical room for the boilers would have proved troublesome. Each high-efficiency boiler used for the heating only required a 6–in. PVC pipe for the flue and a 6-in. PVC pipe for combustion air. The domestic DHW boilers each required 4-in. pipes. CIRCULATING FOR SUCCESS The LoadMatch single-pipe system replaces all the control valves and most balancing valves with small, low-kW LoadMatch circulators. The circulators deliver the water to where it needs to go, as opposed to forcing the water to go where it isn’t needed. The savings in raw material, installation costs, and energy consumption are substantial. The system is self-balancing, reducing many start-up, commissioning, and operational problems because all zones get their required amount of flow at all times. In addition to the energy savings typical with hydronic systems, the approach reduces head loss by eliminating many control and balancing valves, as well as some pipe. The result is lower pump head and less energy consumption to move the water. “The Airtherm fancoils being installed are custom made for the

FIGURE 2. Two vertical inline pumps, located in the basement, circulate chilled water throughout the building.

job,” said Patrick Taff, president of E.J. Taff Sales Company, Inc., manufacturer’s representative for Airtherm. “LoadMatch pumps can be sweated directly to the pipe, eliminating the large flanges. Without that option, it would have been nearly impossible to get the circulators to fit inside the fancoil cabinets.” After the engineers at Airtherm did a mock-up, over 800 circulators were shipped to Airtherm’s Arkansas manufacturing facility. Two circulators were installed in each fancoil cabinet, further reducing the amount of on-site piping work needed at the jobsite. Council Tower has only studio and one-bedroom apartments, calling for 300-, 400-, and 600-cfm fancoil units. “Not only are operating and maintenance costs low, but we’ve found that the LoadMatch system is approximately 10% to 15% less initial cost than a conventional four-pipe system for this type of building,” Jefferson said. “It won’t be long before all the tenants can move back in,” said Jefferson. “This time around, we’re sure that front desk personnel won’t be plagued with phone calls from irate, uncomfortable tenants. We’re certain they’ll also be happier with their utility bills.” ES

Vastyan is an account manager and writer for Common Ground, a trade communications firm based in Manheim, PA. He graduated from PSU with a Bachelor of Science Degree in 2008 and since then has researched and written about state-of-the-art mechanical systems. Contact him at [email protected].

w w w. esmag a zin e. co m

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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. BY JAMES E. DELAHOYDE

O

riginally developed to isolate and dampen vibration in hydraulic hoses within steel housings, modular mechanical seals are now used to permanently seal and protect pipes passing through concrete walls, floors, ceilings, and other barriers. They can be used to seal ductile iron, concrete, metal, and plastic pipes within the holes they traverse, accommodating piping up to 144 in. in diameter and providing hydrostatic sealing up to 20 psig, or 40 ft of static head. These devices are installed around the external circumference of the pipe, sealing it more quickly and effectively than leadoakum joints or hand-fitted flashings, mastics, or casing boots (Figure 1). The seals expand when tightened to fill the annular space between the pipe and the cored or formed penetration, which is defined as half the difference between the inside diameter of the penetration and the outside diameter of the pipe. Modular mechanical seals consist of a series of links with five components: an elastomeric sealing element, two pressure plates, and a bolt/nut combination. The sealing element (Figure 2) is usually made of virgin ethylene propylene diene monomer

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(EPDM), a synthetic rubber with a typical Shore A hardness of 50 +5%. Seals for thin-wall piping and ductwork are made of softer EPDM with a Shore A hardness of 40 +5%. This lowerdurometer rubber makes it possible to effect a seal at lower torque, thereby avoiding deformation of the piping or ducts. Some seals are made of virgin nitrile rubber for resistance to oils, gasoline, and solvents, as well as synthetic silicon rubber for steam applications. The elastomer formulation and dimensions of the sealing element are designed to provide even, uniform volumetric expansion. Virgin rubber is used to ensure the sealing element is evenly vulcanized into a consistent, expandable unit. Recycled rubber and synthetic fillers are sometimes used to control costs, but at the expense of consistent, uniform expansion. Because the seals are supplied on belts, it is imperative that they be as close to the same hardness or durometer as possible. For example, if a belt of seals with different hardness values goes into the same penetration and the same torque is applied to each link, they will not expand uniformly and the seals can be compromised.

The seals have a bolt hole cavity on each side of which are molded cones, which are forced inward as torque is applied to the bolt, increasing air pressure inside the cavity. A molded compression-assist boss on each side of the pressure plate permits increased compression loading, preventing liquids from entering the cavity for better corrosion control (Figure 3). It should be noted that the shoulder volume or the thickness of the rubber surrounding the bolt-hole cavity must be sufficient to prevent the bolt from tearing through the seal when it is tightened. Modular mechanical seals used to have pressure plates made of a combination of steel plate and PVC (Figure 4). The bolt was threaded through the steel plates and the torque applied to it was distributed through the plates and PVC housings. After extensive service in the field, it was determined the PVC material was not only prone to cracking but also exhibited cold flow around the steel portion of the pressure plates causing the seals to loosen over time. Finite element analysis of the seals by the University of Michigan resulted in replacement of the steel pressure plates with plates made of a reinforced nylon composite. Injection molded with ribs, the redesigned pressure plates distribute torque more evenly, while providing higher dielectric strength and improved corrosion resistance. BOLT/NUT COMBINATIONS Various bolt/nut combinations have been used with modular seals, ranging from vanilla cadmium-plated carbon steel to today’s more exotic metric two-part zinc dichromate sub-coatings per ASTM B-663 under a propriety organic outer coating for superior corrosion resistance. To benchmark the corrosion resistance of these different combinations, four bolts were continuously immersed in tap water for four years, the results of which are shown in Figure 5. The bolt labeled A is a cadmium-plated carbon steel, B is cadmium-plated carbon steel with an anti-corrosion coating, C is two-part zinc dichromate coated carbon steel with an organic corrosion-resistant coating, and D is Type 316 stainless steel. Note the increasing corrosion-resistance from bolt A to bolt D. In addition, modular seals using bolts with organic corrosionresistant coatings over zinc dichromate sub-coatings were subjected to 1,470 hours of salt spray per ASTM B117-97 without exhibiting significant corrosion. The diameters of both the bolt and bolt cavity provide for only for minimal clearance, so the sealing element expands to fill the annular space between the pipe and penetration rather than the space between the bolt and bolt cavity. The bolts are lubricated, those made of Type 316 stainless with a PTFE-based lubricant to prevent galling or seizing during tightening. On most modular seals the nut applies torque to the pressure plates through two planes of distribution (Figure 6). Modular mechanical seals must be installed so as not to create a path for liquids within the penetration. As noted, the seals are supplied in belts of the appropriate size and number of links for a specific application. These belts are tightened to hold the hardware in place so it arrives at the job site without missing pieces. The belt containing the links should be loosened so all crevasses, the areas where the sealing elements come together, are closed (Figure 7). Otherwise they can create a

FIGURE 1. Modular mechanical seals permanently seal piping passing through concrete barriers by expanding to fill the annular space between the pipe and penetration.

FIGURE 2. The elastomeric sealing element is designed to provide consistent, uniform volumetric expansion.

FIGURE 3. Note the molded-in compression-assist boss for increased compression loading and corrosion control.

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Modular Mechanical Seals Protect HVAC Piping And Duct Systems

FIGURE 4. Pressure plates are now made of a robust reinforced nylon composite.

FIGURE 5. Four different bolt/nut material/plating combinations were tested for corrosion resistance.

FIGURE 6. Note the planes through which the torque applied by the nut is distributed to the pressure plates.

liquid path through the seal itself. The horizontal center of each pressure plate in the seal should be aligned with the tangent of the pipe, so the torque from tightening the bolt is uniformly distributed to the sealing element. The axis of the pipe should be parallel to the axis of the penetration and centered in the opening. The pipe should be adequately

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FIGURE 7. Spaces between the individual links must be closed to prevent liquids from passing through the seal.

supported on both ends, since modular seals are not designed to support the weight of the pipe. Once the belt of individual seals is connected around the pipe, all bolt lengths protruding from the rear pressure plates should be of equal length so the seal can be tightened uniformly. All surfaces of both the pipe and penetration should be free of dirt and debris. If weld beads are encountered within the footprint of the seal, they should be removed per the piping manufacturer’s recommendations before installing the seal. After the seal is fastened to itself around the pipe, normal sag or slack may be noticed. Some installers are inclined to remove what appear to be extra links so the seal slides smoothly into the penetration. However, modular seal assemblies are supplied with the correct number of properly sized seals for the penetrations in which they are to be installed. Removing links can alter the volume/void relationship, impairing the effectiveness of the seals. On smaller-diameter pipe the links may have to be stretched. In addition, pressure plates must be aligned so their outermost surfaces are all on the same vertical plane. HOLE FORMING While proper seal selection and installation are critical, consideration must also be given to proper hole forming. Holes through poured concrete walls can be saw cut or formed with steel or thermoplastic sleeves. If saw-cut, there must not be any voids in the footprint of the installed seal, and the penetration must be free of dust and dirt. The modular seal can then be installed directly into the penetration. If the hole is to be formed with a steel wall sleeve, the outside diameter of the sleeve must be fitted with a 2-in. collar around its entire circumference to anchor it into the concrete wall and prevent water from migrating around the outside of the sleeve. This collar must be continuously welded on both sides to ensure that water will not run under it, and the wall sleeve must be round, clean and free of weld slag. Thermoplastic wall sleeves have molded-in water stops with textured surfaces to better adhere to the concrete. These sleeves must be able to withstand the forces poured concrete exerts on them without going out-of-round. Reinforcing ribs and end caps that fit into the sleeves help position them and maintain their concentricity (Figure 8). Thermoplastic wall sleeves too must be round, clean and free of mold burrs.

Low-durometer EPDM seals can be used to seal round ductwork into foundation walls. However, it is important that equal force be maintained around the ducts as the seals are tightened. The seals should be tightened in a clockwise direction, and no bolt should receive more than two turns, rather than the standard four, during each successive pass. In addition, heat tracing can be sealed into a poured concrete wall using another penetration parallel to the heating/cooling water piping. The seal is sized for the dimensions of the heat trace and installed in the adjacent penetration. The expansion and contraction of steam piping present a number of sealing challenges. Variations in temperature and the diameter of the pipe must be taken into account in sizing seals for these applications. The seal is correctly sized if the minimum and maximum pipe diameters are within its published size range. If the seal is not correctly sized, it will have a tendency to creep and eventually “walk” out of the penetration. Installing loosely fitting flange faces into both sides of the penetration wall will prevent this from occurring, and is now accepted industry practice. All modular seals can accommodate some angular misalignment, which varies with the relationship between the size of annular space to be filled and the size range of the seal. The closer the annular space is to the middle of this range and the thicker the seal, the more misalignment it can tolerate. If misalignment of the pipes through a wall is a design factor, consideration should be given to oversized sleeves or cored penetrations that can accept larger seals. Modular seals can also provide a modicum of vibration dampening if the minimum and maximum movement of the pipe falls within their range. EPDM sealing elements used in HVAC applications take on a compression set of approximately 15% of their expanded range (based on being subjected to a temperature of 158°F/70°C for 22 hrs) Take for example a seal with an expanded-state thickness of 1.87 in. and a static-free-state thickness of 1.43 in. The difference between these leaves an expandable range of 0.44 in., 15% of which is 0.064 in. Subtracting this loss in the seal’s expandable range from the expanded-state thickness yields a value of 1.80 in. If the annular space of the penetration is greater than this value, the seal cannot be reused. If the annular space is between 1.43 in. and 1.79 in. it can be. The smaller the seal, the less expandable range it has, limiting the possibility of reuse. Modular mechanical seals have evolved substantially since they were first developed 45 yrs ago. Among the enhancements for improved performance is an internet-based calculator to identify which type of seal would provide the optimum sealing pressure, vibration dampening and ease of installation for a given penetration. Bolts and pressure plates have been standardized, with bolts for smaller seals changed from hex head to Allen head to facilitate installation in smaller annular spaces. In addition, pressure plates have been redesigned to provide 15% more strength (Figure 9). Properly designed and installed modular mechanical seals offer one of the most cost-effective and reliable methods of sealing piping or duct work into floor or wall penetrations. There are numerous suppliers these seals, some of which are still using technology dating to the 1980s. Ultimately, it will fall to the

FIGURE 8. Thermoplastic wall sleeves are reinforced to keep them from going out-of-round and feature integral water stops to prevent liquid leakage.

FIGURE 9. Redesigned pressure plates provide 15% more strength.

HVAC engineer to review all pipe and duct penetrations and select the seal that best meets the requirements of a particular project. ES

Delahoyde, northeastern regional sales manager with PSI/Pikotek, an EnPro Industries company, has spent most of his career in sealing and flange isolation to protect piping systems from corrosion. He holds and has been instrumental in the granting of several patents in the field of corrosion, and for the past 10 years has developed many refinements to elastomeric modular mechanical seals. He is a graduate of the University of Wisconsin.

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BuildingAutomation BY PAUL EHRLICH, P.E., AND IRA GOLDSCHMIDT, P.E.

FUTURE OF Lighting Control and LED Lighting Ready for a solid-state bulb with an IP address?



There have been dramatic changes to the building controls market over the last 20 to 30 years. The “energy crisis” of the 1970s (along with the development of the microprocessor) sent the “Big 5” dominated pneumatics market into an energy management system (EMS) orbit that was joined by several dozen other manufacturers by the mid-1980s. Then, with the ever-increasing challenges of producing technologically advanced BAS, along with new millennium’s dominance of open protocols, the market attrition and consolidation has brought it back to earth. The expectations for improved energy efficiency and the requirements in the new energy codes are driving a need for improved lighting control. On many projects, lighting control has not had the same focus as HVAC control, due to challenges with budgets, division of design labor, and convention. But all of that is starting to change and we should be looking toward lighting control as a part of future new construction and retrofit projects. The basic concepts of energy efficient lighting control are fairly straightforward: deliver the required amount of light for safety and productivity. To do this, there are two fundamental strategies: • Occupancy-based control. Bring lights on when areas are occupied and turn them off when they are not occupied. This can be achieved using time-based scheduling, or with the use of occupancy or vacancy sensors that turn lights on or off based on motion. • Daylight harvesting. Increase or decrease lighting levels when natural light is present. Traditionally, lighting control solutions have been provided as part of the BAS or from a specialized lighting control system. These solutions have continuously improved, providing for options for open systems integration, modular installation, and new tools for reducing the cost of installation and programming. So what does the future hold for lighting control? We are starting to see a number of new solutions coming on the market that are designed around integrated lighting control for LED or solid-state lighting. Here are a few examples: • Digital lumens. Integrated solution primarily for high bay industrial applications that offers an LED fixture with integrated controls for occupancy sensing and daylight harvesting. Fixtures can communicate wirelessly for monitoring, programming, and coordination. • Redwood systems. Providing a DC wiring infrastructure for 42

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Greenc Gree nchi hip p fr from om NXP is a ne new w tech te chno nolo logy gy tha hatt ca can n be bui uilt lt int nto o soli so lidd st stat ate e an and d CFL lamp ps to give each h one an IP add ddre dd ress ss and d wir irel eles less s comm co mmun unic icat atio ions ns. Mo Movi ving ng con ontr trol ol and comm co mmun unic icat atio ions ns int nto o lo long ng lif ife e bu bulb lbs s coul co uld d be a “ga game me chang hanger er” ” in in all al llo lowi wing ing for int nteg tegra ated d ligh ghti ting g conttrol ol. solid-state lighting that includes both power and controls in a single cable bundle. • Greenchip from NXP. A new technology that can be built into solid-state and CFL lamps to give each one an IP address and wireless communications. Moving control and communications into long life bulbs could be a “game changer” in allowing for integrated lighting control. Moving to solid-state lighting offers many other benefits in addition to improved control. These include reduced energy usage and less heat, as well as long bulb life. There is a lot of work going on to bring the cost of this technology down, and it is anticipated to become dominant within the next 10 yrs. As this transition occurs, control will come along as part of it and as system designers, we need to be ready for this change. ES Paul and Ira first worked together on a series of ASHRAE projects including BACnet committee and “Guideline 13 – Specifying DDC Controls.” The formation of Building Intelligence Group provided them the ability to work together professionally providing assistance to owners with the planning, design, and development of Intelligent Building Systems. Building Intelligence Group provides services for clients worldwide including leading universities, corporations, and developers. More information can be found at www.buildingintelligencegroup.com.

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ISSUES & EVENTS

USGBC lists states with most LEED®certified projects per capita The USGBC has released its 2011 list of top 10 states for LEED®certified commercial and institutional green buildings per capita, based on the U.S. 2010 Census information. The District of Columbia leads the nation, with more than 31 sq ft of LEED-certified space per person in 2011, with Colorado being the leading state, with 2.74 sq ft per person in 2011. Other top states include Illinois, Virginia, and Washington, with 2.69, 2.42, and 2.18 sq ft of LEED-certified space per person, respectively. The top LEED states per capita, including the District of Columbia: Sq ft of space to earn LEED-certification in 2011

Per capita

District of Columbia

18,954,022

31.50

Colorado

13,803,113

2.74

Illinois

34,567,585

2.69

Virginia

19,358,193

2.42

Washington

14,667,558

2.18

Maryland

11,970,869

2.07

Massachusetts

13,087,625

2.00

Texas

50,001,476

1.99

California

71,551,296

1.92

New York

36,538,981

1.89

Minnesota

9,591445

1.81

“Looking past the bricks and mortar, people are at the heart of what buildings are all about,” said Rick Fedrizzi, president, CEO, and founding chair, USGBC. “Examining the per capita value of LEED square footage in these states allows us to focus on what matters most — the human element of green buildings.” LEED counts more than 44,000 projects commercial projects participating internationally, comprising over 8 billion sq ft of construction space in all 50 states and 120 countries. In addition, more than 16,000 homes have been certified under the LEED for Homes rating system, with more than 67,000 more homes registered. “Our local green building chapters from around the country have been instrumental in accelerating the adoption of green building policies and initiatives that drive construction locally,” continued Fedrizzi. “These states should be recognized for working to reinvent their local building landscapes with buildings that enliven and bolster the health of our environment, communities, and local economies.” “This is a great accomplishment for the D.C. metropolitan region and a testament to the drive, commitment, and leadership of all those who live, work, and play in our community,” said Mike Babcock, board chair of the National Capital Region Chapter of USGBC. “We also realize there is still more to do and hope to effectively guide the effort by engaging, educating, and encouraging the dialogue around the value of sustainability.” “Being in the top three is a testament to the diversity of stakeholders from across Illinois who understand the significant environmental, economic, and social benefits related to LEED certification,”

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said Doug Widener, executive director of the Illinois Chapter of USGBC. “I applaud Illinois’ diverse green building community on this outstanding achievement.” Notable newly certified projects in 2011 include the Treasury Building in Washington, which is distinguished as the oldest LEED-certified project in the world; the LEED-Platinum Casey Middle School in Boulder, CO; the iconic Wrigley Building in Chicago; Frito-Lay in Lynchburg, VA, which earned LEED Gold for the operations and maintenance of an existing building; the LEED Silver Hard Rock Café in Seattle; Anne Arundel Medical Center in Annapolis, MD; Yawkey Distribution Center of The Greater Boston Food Bank in MA; the LEED Gold Austin Convention Center in TX; SFO’s LEED Gold Terminal 2 in San Francisco; the LEED-Platinum Hotel Skylar in Syracuse, NY; and the LEED Platinum Marquette Plaza in Minneapolis. In December 2011, USGBC announced that LEED-certified existing buildings outpaced their newly built counterparts by 15 million sq ft on a cumulative basis. A focus on heightened building performance through green operations and maintenance is essential to cost-effectively driving improvements in the economy and the environment. For the full list of LEED-certified projects visit: usgbc.org/press.

USGBC, partners release recommendations to government for green building action Along with 15 partners, the USGBC have released a report that recommends nearly three dozen executive actions across 23 agency programs where the Obama Administration can drive the economic and environmental benefits of green building without new legislation. The report, “Better Buildings Through Executive Action: Leveraging Existing Authorities to Promote Energy Efficiency and Sustainability in Multifamily, Residential and Commercial Buildings,” builds on a 2010 report that identified nearly 100 legal authority opportunities across 30 existing federal programs worth more than $72 billion to improve energy efficiency in U.S. building stock. Partners included The Real Estate Roundtable, HDR, Schneider Electric, Johnson Controls, Enterprise Community Partners, Natural Resources Defense Council, United Technologies Corporation, Lennar Homes, Energy Foundation, Ingersoll Rand, Siemens, National Association of State Energy Officials, The Center for American Progress, National Housing Conference, and Building Owners and Managers Association (BOMA) International. “In the time since we distributed this original report in 2010, the unemployment crisis has deepened and Congress has become further paralyzed by partisan gridlock and concerns over the deficit. We felt it was important to once again draw attention to the potential to create jobs and accelerate economic growth through energy efficient and sustainable buildings,” said Roger Platt, senior vice president, Global Policy & Law, USGBC. “This potential only takes root when matched by supportive federal policies, such as the Administration’s Better Buildings Initiative, which encourages investment in high-performance buildings.” USGBC and the partner organizations worked closely with federal government officials to identify new executive policymaking opportunities to achieve greener buildings. Since the first report

ISSUES & EVENTS

in April 2010, there has been significant progress in implementing several proposals, including the Administration’s Better Buildings Initiative, improving the Energy Efficiency Commercial Building Tax Deduction using Department of Energy loan guarantees, and utilizing Small Business Administration financing programs to support energy efficiency retrofits at commercial buildings. Specifically, the report identifies significant new opportunities within programs and legal authorities. Some of the most promising opportunities include: • Releasing updated guidance on the use of Section 179D, the deduction for energy-efficient commercial buildings • Overcoming obstacles for building owners to capture aggregated data of tenant energy consumption in multi-tenant structures • Facilitating the use of widely recognized residential energy efficiency labels • Integrating building energy efficiency and sustainability into pro grams managed by the U.S. Department of Commerce’s Economic Development Administration • Better utilizing the Department of Defense’s procurement and research authorities to promote green buildings • Implementing all cost-effective retrofits identified through audits carried out by federal agencies, using energy savings performance contracts (ESPCs) or other innovative financing

The report also provides a summary of progress and major developments, including: • The Administration’s Better Buildings Initiative, which contains many elements of the 2010 report, such as improving the Energy Efficiency Commercial Building Tax Deduction, using Department of Energy loan guarantees, and utilizing Small Business Administration financing programs to support energy efficiency retrofits at commercial buildings • An interagency effort to establish uniform energy efficiency standards across federal housing programs and to require the use of “green capital needs assessments” to identify and encourage energy efficiency or sustainability improvements in federally assisted housing • Reforms that give energy efficient and sustainable housing an edge in a number of competitive solicitations managed by the Department of Agriculture and the Department of Housing and Urban Development • A joint initiative by the Department of Energy and the Appraisal Foundation to promote fair appraisal standards and practices with respect to energy efficient and sustainable buildings • A proposed commercial building energy performance rating program sponsored by the Department of Energy HPB

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Historic hotel installs wireless monitors, enters new century

DE-SCALE

When Hudson River Partners 1, LP acquired the Historic Thayer Hotel in 1999, this majestic property had lost much of its stately appeal. Originally established to accommodate personnel and guests of the U.S. Military Academy, managing general partner Rick Minicozzi (USMA, Class of ’86) and his group were determined to reestablish its proper place as a world-class hotel and conference center. Paying tribute to the hotel’s historical beauty was critical, but Minicozzi also understood the importance of 21st-century amenities and sustainable operation. One major aspect of the renovation focused on installing efficient upgrades that reduce energy costs without compromising historic hotel features or the overall guest experience. These upgrades include lighting control throughout the property and guest room HVAC controls that are tied directly into the front desk.

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GUEST ROOM LIGHTING SAVES ENERGY AUTOMATICALLY Guest rooms are notorious energy hogs, and lighting control is making the biggest difference in these spaces. Before the room renovations, the lights, televisions, and air conditioners were typically left on all day whether the guest was in the room or not. Not only does this compromise the development’s group commitment to environmental responsibilities, but it plays havoc with energy bills. Now, both the lighting and the TVs in each room automatically respond to occupancy sensors that turn them off when these spaces are vacant. For additional energy savings, the HVAC system is linked by Ethernet to the front desk, and when guests check out at the end of their visit, air conditioning levels are automatically raised to ensure that energy is not spent heating or cooling an unoccupied room. When the next guest checks in, front desk personnel make sure the temperature controls are reset, and the guests adjust according to their own preferences. “Wireless technology allowed us to install lighting controls in each guest room without rewiring,” explains Minicozzi, “These historic rooms were not built to accommodate overhead lights, but we didn’t want to incur the expense of rewiring to install occupancy sensors in each room or to detract from the room décor. It’s also critical that our guests are not inconvenienced or uncomfortable. We’re very committed to sustainable practices, but our first commitment is to the comfort of our patrons.” Wireless solutions made installation easy and operation automatic. When guests leave their rooms, lights turn off. Each television is plugged into an appliance module that also responds to the sensor, so when the room is vacant, the TV turns off as well. Wireless bedside controls allow guests to adjust lighting right from the comfort of their bed, and again, no rewiring was necessary. EFFICIENT CONTROL SOLUTIONS THROUGHOUT The hotel is also home to the Thayer Leader Development Group, which provides world-class leadership and ethics training to a wide variety of corporate entities. Known for its experiential, multi-pronged approach to executive leadership, and its ability to attract high-profile keynote speakers from the highest echelons of business and politics, the development group is confident that its unique setting and beautiful facilities are also key contributors to their success.

CASE IN POINT

Automatic shading systems, daylight and occupancy sensors, preset lighting control, and digital fluorescent ballasts help make the most of the facility’s incredible location. Banks of floor-to-ceiling windows invite daylight into the space all day. The partners chose the shading and light control systems to preserve the view while eliminating unpleasant glare and heat gain. Blackout shades are also incorporated to ensure maximum visibility during A/V presentations. Daylight sensors allow electric light to be dimmed when daylight is sufficient, and occupancy sensors ensure that the lighting is off when a space is vacant. Preset control at speaker podiums and at other key location in the conference rooms allow speakers to have total control of the lights and shades without disrupting their presentations. Each space has been designed with both energy-savings and comfort as top priorities. These same strategies are also widely used in the bar areas and the fitness center, which is open 24/7 for guest convenience. RESULTS The owners already see a significant reduction in energy use as a result of the automatic light controls, and the seamless integration of the new controls hasn’t been noticed by guests at all. Lutron shade controls in the conference facilities generate energy savings, while ensuring that guests are never isolated from one of the hotels’ most impressive assets: its prime location on the grounds of West Point, and on the banks of the Hudson River.

Wireless sensors and controls saved this hotel money in energy costs.

According to Minicozzi, “The setting is a major advantage for our conference center and a wonderful attraction for our guests. The entire hotel renovation was planned and executed to pay tribute to the hotel’s history and to sustain its place as an iconic part of this venerable institution for the future.” HPB

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Bradford White Water Heaters Product Quality & Customer Support Key to Bradford White’s Top Ranking

B

radford White’s Water Heaters is the tank type water heater brand most purchased by contractors according to an independent water heater study conducted by Clear Seas Research. Not only that, but Bradford White is also the brand most recommended by contractors to consumers. Bradford White has held this top position for five consecutive years in both categories; brand most purchased and brand most recommended, since the categories became part of the study. So what is it that Bradford White is doing right? In this internet era where companies are constantly “reinventing” themselves online in the race to win the favor of friends and followers on Facebook or Twitter, Bradford White is engaging customers, staying relevant and “friending” people the old fashioned way – by making great products, supporting its customers with accessible, efficient service, and staying true to a business philosophy that helped the company become the industry leader it is today. “When you look at the reasons contractors prefer Bradford White, you realize that our philosophy to provide a premium product and to back that product with unequaled service and support is right on target,” said Bradford White’s Bruce Carnevale, Senior Vice President – Sales and Marketing. “We make a great product, there’s no denying that. Manufacturing those products for wholesale distribution only is a critical reason we enjoy strong brand loyalty from plumbing and heating contractors.”

CONTACT INFORMATION: Bradford White Water Heaters www.bradfordwhite.com

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24/7 Call Center It was this focus on the customer support that led Bradford White to open the water heater industry’s first ever 24 hour a day, seven day a week warranty and technical service support center at its Middleville, MI manufacturing facility. The new center is fully staffed with both warranty specialists and technical service experts. The entire staff has completed a rigorous and extensive training program. "This is an exciting move for Bradford White and we are proud to have very knowledgeable people ready with the solutions our customers need whenever they need them," said Dustin Bowerman, Bradford White’s Director of Technical Services. "Bradford White has always been a company that put a premium on customer service. Our continued volume growth in recent years increased our call volume at a similar rate. This new state-of-the-art facility puts our customers first and will provide them with the best service and support in the business." OnGuard RMT™ - Water Heater Management System In the coming months, Bradford White will introduce its OnGuard RMT™ System, a remote monitoring technology and service available for commercial gas powered water heaters. OnGuard RMT™ combines proprietary hardware, alert status notification, 24/7 factory-based technical support, and fast service dispatch to give customers the ultimate level of awareness, protection, and peace of mind. When connected to the OnGuard RMT™ communication gateway, the status of the water heater is communicated directly to Bradford White technicians. This assisted monitoring protocol frees customers from monitoring their water heater’s operational status. Bradford White technicians do the status monitoring and contact the customer in the event the water heater indicates a fault or requires service. These same technicians then contact an authorized service contractor to perform any required repair or maintenance. And just as important, Bradford White covers the cost of the service calls and repair. In addition to the monitoring, live technical support and service dispatching, customers also get fault alert notification via email or phone call, and the tracking, reporting and data collection of unit performance. This data provides a record of burner cycles, burner run hours, and approximate fuel usage. The OnGuard RMT™ System also has the ability to monitor up to four water heaters with one communication gateway and provide statistical data on each unit. To learn more about Bradford White water heating products, please visit our website at www.bradfordwhite.com.

For the fifth straight year, Bradford White is the tank water heater brand most purchased by professional contractors. And again, we are the most recommended brand.

www.bradfordwhite.com

“We made the switch to Bradford White almost 15 years ago when we started having problems with another brand. Our reputation depends on the products we recommend so quality and reliability are critical. We couldn’t be happier. Bradford White is loyal to the plumbing profession. Their products and people are top notch.” Kevin and Ryan Carney - Carney Plumbing – Heating – Cooling, Line Lexington, PA

The results of the 2010

And now our support for you gets

CLEAReport*, an independent water

even better. Bradford White has

heater study by Clear Seas

just opened a 24/7, factory-based

Research, revealed that product

call center.

quality, service, technical support,

This fully staffed technical service

and the fact that Bradford White is

team is there when you need it,

not sold in retail stores were the

anytime day or night.

most important factors to

We’re making it easy for you to

contractors when selecting a

be a Bradford White contractor.

brand of tank type water heater.

|

Built to be the Best™

|

To Find A Wholesaler Call

800.523.2931

Input 128 at www.esmagazine.com/instantproductinfo *Ranking is based on the 2006, 2007, 2008, 2009 and 2010 CLEAReports by Clear Seas Research. Please visit www.clearseasresearch.com for additional information. © 2011, Bradford White Corporation. All rights reserved.

absolute comfort case by case The Challenge: Installing a new cooling system and upgrading the heating system in Maryland’s oldest synagogue without affecting the synagogue’s aesthetics.

Daikin’s Energy Efficient Heat Pumps Satisfy Preservationists’ Guidelines

Daikin’s Solution: Daikin’s intelligent, energyefficient VRVIII system delivers both cooling and heating while remaining virtually unnoticeable to visitors. Daikin’s intelligent energy-efficient Variable Refrigerant Volume (VRV) heat recovery comfort system delivered both heating and cooling to successfully replace a boiler/hot water radiator system and no cooling system in the 145-year old building. Initially, the team looked into conventional comfort systems that would have required installing – and trying to hide – ductwork in the historic space. But it would have involved having to alter the space to accommodate the system. Daikin’s solution would both heat and cool the space as well as provide a streamlined alternative for a historic preservation. Less Obtrusive Than Old Radiators Daikin’s system consists of two twinned 10-ton outdoor VRVIII condensing units supplying 20 tons

of capacity to the upper level of the space. Another unit supplying 8 tons of capacity to the lower level and 21 floor console models line the interior walls of both floors. The Daikin FXLQ floor console models that fit neatly under the low historic synagogue windows are actually less obtrusive than the radiators that had previously been there. The three outdoor condensing units provide 28 tons of capacity and are “tucked away” in a narrow alley right behind the building. Several of the HVAC alternatives investigated would have required placing the outdoor equipment on the roof, which would not have been accepted by the historic preservationists. According to John Lederer, the installing contractor the operation of the Daikin system has been impressive. “Even in freezing weather, the heat production as well as the acoustical performance, has been just tremendous,” he said. “The balance of air conditioning in the summer in every corner of the synagogue has been remarkable, as well.”

he said. For example, when the sun streams in south-facing windows, the units can run at higher capacity than those on the opposite side, where the space is cooler. In addition, multiple consoles on each floor are controlled by a centralized intelligent 7-day programmable controller, which gives the synagogue overall control of the comfort within the space. The Lloyd Street Synagogue is also located very close to Baltimore’s Inner Harbor and very close to sea level. Since after doing a thorough study, the design/ build team knew the Daikin system control logic would help manage the discomfort caused by high humidity levels better than standard on/off systems.

Lederer pointed out that each individual Daikin console has a built-in intelligent return air sensor helping vary the flow of refrigerant to provide increased comfort exactly where and when it’s needed. “It acts independently in its own little zone,”

The Daikin Details: s289104*5(EAT0UMP626)))2!nTWINNED289104*5 s289104*5(EAT0UMP626)))2! s&8,1-6*5&LOOR3TANDING)NDOOR5NIT s&8,1-6*5&LOOR3TANDING)NDOOR5NIT s&831-6*5#ONCEALED)NDOOR5NIT s$#3#$#3!)NTELLIGENT 4OUCH#ONTROLLERWITHWEBOPTION s$-3""!#NET® Gateway (128 groups) s"2#$ $AY0ROGRAMMABLE#ONTROLLER

JMI-0107

JQA-1452

Daikin AC offers North America intelligent heating and cooling solutions with superior energy performance and sophisticated design. These advanced systems fall under the Quaternity, Altherma, VRV and SkyAir product names. The company located in Carrollton, Texas is owned by the Japanese based Daikin Industries, Ltd. For more information, call 866-4DAIKIN or visit www.daikinac.com.

accelerate with #1

DAIKIN LEADS. OTHERS FOLLOW. PERFORMANCE. COMFORT. INNOVATION.

We’re #1 in HVAC Sales Worldwide for a Reason. HVAC is our core competency and our core business. Daikin is advancing air conditioning and heating in North America with some of the most innovative, technologically, and aesthetically advanced solutions ever introduced. 30 years ago we brought the world’s first VRF system to market, and we called it VRV. Since then, we have continued to lead the HVAC industry with our range of inverter driven solutions such as VRV, Quaternity and SkyAir Split Systems, Multi-Split Systems, and Daikin Altherma Air to Water Heat Pump systems to name a few. Let us show you the advantages of working with #1. We are Daikin AC — Absolute Comfort.

VISIT DAIKINLEADS.COM OR CONTACT YOUR LOCAL DAIKIN REPRESENTATIVE OR DISTRIBUTOR Input 310 at www.esmagazine.com/instantproductinfo

Total Installed Costs

Providing a More Complete Picture for HVAC-System Comparisons

Total Installed Costs

Space Usage

Equipment Costs

Installation Costs

Design Costs

0U[OLZWLJPÄJH[PVUHUKKLZPNUVMJVTTLYJPHS/=(*systems, equipment usually is considered the most important cost factor. However, even the seemingly lowest-cost options often contain hidden costs that add up quickly. For example, chillers, variable-air-volume (VAV) systems, and ground-source heat pumps may be considered relatively affordable based on equipment costs alone. But their weight, number of required air handlers, piping and / or ductwork, secondary equipment, water- or ground-loop considerations, and power \WZPaPUNHUKYPNNPUNJHUZPNUPÄJHU[S`PUJYLHZLHJ\Z[VTLY»ZIV[[VTSPULJVZ[Z 4P[Z\IPZOP,SLJ[YPJ»Z[^VWPWL]HYPHISLYLMYPNLYHU[ÅV^(VRF) zoning systems are unlikely to require rigging, are easy to install, need fewer connections, and often result in lower electrical loads. The systems also eliminate [OLI\PSKPUN[LHYKV^UI\PSK\WVM[YHKP[PVUHSVW[PVUZZH]LJ\Z[VTLYZTVUL`HUKKLSP]LYOPNOLYLMÄJPLUJ`HUK ease of maintenance. Space Usage Considerations Mitsubishi Electric systems give you more design option. With features like 3-inch piping instead of 4-inch, compact units, air handlers with many placement options, lightweight piping, and more, you can JVUÄN\YLV\YZ`Z[LTZ[VÄ[`V\YHLZ[OL[PJ rather than designing your space around your HVAC.

Equipment Costs Mitsubishi Electric systems can reduce the amount of ancillary equipment and

processes required, thereby reducing the overall cost of the system. For instance, our systems can be designed without ductwork, pumps, water piping or dampers, HUKV[OLYHPYÅV^HJJLZZVYPLZ

ZPTWSPÄLKHUKÅL_PISLJVUKLUZPUN\UP[Z and air handlers, minimal space required in mechanical cases and rooms and ease of system scaling as your building needs grow and change.

Installation Costs and Considerations

The Mitsubishi Electric Advantage

Mitsubishi Electric VRF systems are simple to get up and running. They require only one type of copper pipe, reducing weight-based costs and standardizing insulation requirements. Compact indoor and outdoor units can be transported in standard elevators with no need for expensive rigs and lifts or reinf-orcement of roofs or other structures.

When you research HVAC systems, be sure to talk to Mitsubishi Electric, the leader in INVERTER-driven split-ductless and ducted comfort systems and VRF solutions in the U.S. We will show you how our zoning solutions can save you money on total installed costs. And when you consider the many other advantages of a Mitsubishi Electric system — precise JVTMVY[aVUPUNLULYN`LMÄJPLUJ` scalability, simultaneous cooling and heating, low service requirements, and more — you soon will discover why we are the smart choice for just about any application.

Design Costs and Considerations Mitsubishi Electric equipment can help resolve a number of design issues, such as placement and routing of ductwork,

Want to know more about how our smart solutions can help you save money on total installed costs? Just visit www.totalinstalledcosts.com or call 1-800-433-4822.

Input 87 at www.esmagazine.com/instantproductinfo

COMPANY

SPOTLIGHT

AAON Industry leading 19 SEER AAON RQ Series light commercial rooftop units

A

AON RQ series rooftop units are engineered for high efficiency, flexibility, serviceability, and energy savings. The RQ series cabinet is insulated with injected foam insulation, similar to high efficiency homes and office buildings. Supply fans are direct drive - eliminating the undesirable qualities of belt driven systems including: continuous maintenance and belt tightening, noise due to the slipping of the belt, belt debris that clogs filters and energy lost transferring energy from the motor to the fan. Variable capacity and two step compressors are available on the RQ series, offering precise load matching capability. Single zone variable air volume (VAV) systems combine a variable speed fan and variable capacity compressor to match load requirements, allowing the system to work only as hard as conditions require. Single zone VAV eliminates the problem of over sizing equipment and getting too little dehumidification – the compressor capacity and fan speed automatically adjust to match the load and dehumidify the space. Standard RQ series features include stainless steel piano hinges, color-coded wiring

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diagrams, labeled components, slide out filter access and isolated controls and compressor compartments for ease of maintenance. AAON RQ series units are highly customizable with a wide variety of available options and features. RQ units are available as air-cooled packaged rooftop units, air-source, water-source, or geothermal heat pumps, 100% outside air units, and chilled water or non-compressorized air handlers. Heating is available in high performance hot water, steam, electric, and gas heating configurations. Options include high efficiency variable speed fans and variable capacity compressors, energy recovery wheels, and economizers. Multiple unit efficiency options are available to meet a variety of energy standards including ASHRAE 90.1, ASHRAE 189, CEE Tier 1 and CEE Tier 2. RQ Series units are available with efficiencies up to 19 SEER! Since 1988 AAON has been leading the HVAC industry in designing and manufacturing high quality and high performance equipment. AAON creates value for engineers, architects, owners, and operators by providing specific and unique solutions to new and retrofit HVAC challenges. AAON manufactures rooftop units from 2-240 tons, self-contained units from 2-70 tons, chillers from 5-540 tons, condensers and condensing units from 2-230 tons and custom and cataloged air handling units from 800-48,000 cfm.

COMPANY

SPOTLIGHT

ebm-papst Inc. ebm-papst sets the bar on Fan Efficiency Grade (FEG) standards with EC RadiCal, EC Plenum and EC HyBlade® fans

F

armington, CT— With fans now consuming an astounding 23 percent of the world’s energy*, designers and facility managers of commercial, industrial and institutional buildings need ways to reduce the drain their air moving systems place both on the ‘grid’ and on their bottom line. Enter ebm-papst’s generation of aerodynamic commercial fans that exceed the rigorous energy-conservation standards in both the U.S. and the European Union for the next decade. The company’s GreenTech philosophy takes a complete systems approach — from electrical input to airflow output. ebm-papst Greentech fans have a highly efficient airflow-to-watt ratio. Their EC RadiCal, EC HyBlade® and EC Plenum fans offer precise controllability for load matching and efficiency superior to traditional fans with AC motors. “A fan efficiency grade (FEG) is a numerical rating that classifies bare-shaft fans by their aerodynamic ability to convert mechanical shaft power to air power,” said Armin Hauer, advanced technology manager for ebm-papst Inc. “Our EC RadiCal, EC HyBlade® and EC Plenum fans use very advanced aerodynamics to meet or exceed FEG minimums required by the pending revision of ASHRAE 90.1 Energy Standard for Buildings and the forthcoming 2012 International Green Construction Code (IgCC). FEGs are based on the Air Movement and Control Association International (AMCA) Standard 205-10.” Because FEGs do not take into account motor heat, electronic drive inefficiencies and mechanical transmission losses, system designers and users are usually left to estimate these variables on their own. Therefore, ebm-papst creates and documents efficiencies for the complete fan assembly. Each EC GreenTech fan is rated for overall fan efficiency. It accounts for the motor, the integrated variable speed drive and the impeller components. “Our efficiencies are measured air horsepower output over electrical input power,” said Hauer. In sync with worldwide efforts to reduce CO2 emissions, ebm-papst EC GreenTech fans meet the European Commission’s ErP2015 directive. Their EC fan motors also exceed IE4 Super Premium Efficiency levels set by the International

Electrotechnical Commission (IEC). ebm-papst Greentech fans support future-proof building designs around the world. ebm-papst’s intelligent, single or 3-phase, AC line powered EC drive motors can attain full speed efficiency to 90 percent and maintain their high efficiency when operated at greatly reduced speeds. The EC motors are controllable and maintenance-free. A single motor design can drive several fan types, including axial impellers up to 1250mm (49”), backward-curved radial impellers up to 710mm (28”) and forward-curved centrifugal wheels up to 450mm (17.7”). The product line ranges up to 6kW (8hp). On larger axial and centrifugal EC models, fan communication is possible via free motor control software available for a laptop and/or PDA/smartphone. This allows users to easily set a fixed motor speed or to program a closed-loop feedback system to maintain a constant set point. Fans can be equipped with an integrated PID (Proportional-Integral-Derivative) controller, external sensor input for speed modulation, sensor power supply, and RS485 Bus interface for programming and diagnostics.

CONTACT INFORMATION: ebm-papst Inc. 860-674-1515 [email protected] www.ebmpapst.us w w w. esmag a zin e. co m

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COMPANY

SPOTLIGHT

Evolv Industrial High Temp. Hot Water Boiler

T

his market sector needed better technology. EVOLV INDUSTRIAL High Temperature Hot Water boilers have emerged from the groundbreaking foundation and innovative 5 pass tangential tube membrane design. So superior in construction, performance and maintainability, EVOLV rules in comparison to the old style D, O or A type units. The EVOLV high performance low water volume heat exchanger design will allow for useable medium in under 10 minutes from a cold start and respond to swing loads faster than any other unit in it’s class! Performance and Reliability is why major sporting arenas, hospitals, military installations and other critical use facilities depend on our high performance, High Temperature Hot Water boiler systems. EVOLV staff always look forward to custom designed applications. Our engineers stand ready to assist in the application and design of the EVOLV boiler that will specifically meet Evolv Industrial the ultimate client’s 518-344-7490 needs. EVOLV boilers can be field erected by our factory personnel. For more information, please contact us any way you choose! Our website is www.Evolvindustial.com www.evolvindustrial.com

CONTACT INFORMATION:

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COMPANY

SPOTLIGHT

Harsco Industrial Patterson-Kelley

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acked by over 130 years of industry expertise, Harsco Industrial Patterson-Kelley fabricated systems offer a single-source solution for hydronic heating, pool heating, domestic hot water or combination heating systems. All system components – including pumps, piping and boilers – are factory skid mounted and engineered to work together for optimal performance. Fabricated systems come delivered with piping and wiring in place and require only a single point electrical connection and connection to utilities to get them up and running. Our fabricated systems are appropriate for both new construction and retrofit projects. Thoughtful design features, such as forklift holes and round holes in the base that can be used to lift and transport the unit, make it convenient to maneuver the equipment where it needs to be. A standard skid size of 32” x 92” allows our fabricated systems to be arranged in a variety of ways to meet the requirements of your space – “T” shape, “L” shape, parallel or end-to-end – because one size does not fit all. Challenging applications can be met especially well with fabricated systems. Our solutions can be as simple as a low-profile primary pump skid, as complex as a multi-boiler skid system of up to 16 boilers, or as unique as our new offering – the MACH ‘n’ Roll™ system. The MACH ‘n’ Roll™ system is a one-ofa-kind creation from Harsco Industrial Patterson-Kelley that pairs our popular high efficiency MACH® condensing boiler with our DURATION™ condensing water heating system in one, compact design. Since the MACH ‘n’ Roll™ system can be piped to satisfy both domestic hot water and hydronic heating needs, it is a perfect solution for applications where space is at a premium, such as apartment buildings in New York City. For more information about fabricated systems, contact [email protected] or visit www. harscopkahr.com. Be sure to follow Harsco Industrial Patterson-Kelley on Twitter at www. twitter.com/harscopk for industry news, links to interesting articles, and product updates.

C O N TA C T I N F O R M AT I O N : Harsco Industrial Patterson-Kelley www.harscopkahr.com w w w. esmag a zin e. co m

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COMPANY

SPOTLIGHT

ATOM V2.0

– New Features

Acquisition & Total Optimisation Management December 2011

Ź IS YOUR BUILDING COSTING YOU MONEY?

Innotech Control Systems are proud to announce the release of ATOM V2.0. ATOM is Innotech’s Acquisition and Total Optimization Management solution for Building Services such as: Ź Ź Ź Ź

Electrical Water Gas Thermal Energy

ATOM HOME PAGE

Do you need a simple, intuitive interface to analyze your building performance and cost? ATOM ensures early detection of system inefficiencies, creates ongoing savings and helps reduce your total carbon footprint.

Ź PRODUCT FEATURES Ź Data Acquisition, Analysis and Reporting Ź A Billing utility using Crystal Reports for:

Ź Ź Ź Ź Ź Ź Ź Ź Ź

x Electrical x Water x Gas x Thermal Energy x Hour’s Run (With Activity Statement) Individual Carbon emissions and totalization People Counter Interface Single or web-based multi-user license with no ongoing licensing fees Real-time monitoring of performance Historical Analysis, comparisons and ambient conditions Forecast performance based on current and historical trends High Level Integration with BACnet, Modbus, M-Bus and other industry standard protocols Save on installation costs by creating meters and adding or subtracting existing meters Guarantee data integrity, and email or SMS for critical services errors, database size or if user defined targets are exceeded

ATOM MONTHLY REPORT

ATOM may be utilized in conjunction with an existing Building Management System (BMS), or incorporated within a complete Innotech BMS solution. ATOM incorporates complex SQL queries and real-time data to create a solution suitable for clients, consultants or Facility Managers.

Ź CONTACT For more information about ATOM, and Innotech’s extensive range of products, please call Innotech America on +1 360 892 1299 or visit Innotech America on-line to find a Distributor or Dealer near you. © 2011Innotech Control Systems Australia

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COMPANY

SPOTLIGHT

Taco, Inc. TACO COMPLETES ITS BIM PRODUCT CATALOG HVAC Manufacturer’s Entire Product Line is Now BIM-Ready & Database Driven

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aco, Inc., a leading manufacturer of hydronic-based equipment and systems for use in commercial and institutional buildings, began its association with Autodesk® Seek in August 2009 and declared its intention to make all of its commercial products available as Revit® files for use by mechanical design engineers using BIM. At that time Taco was the first pump manufacturer to begin offering Revit files to the MEP engineering community. Tom Lawrence, Taco’s Senior Vice President, Commercial Sales & Marketing, commented then: “One of the reasons we’re so eager to get our products onto the Autodesk Seek web service is that our products will literally be at the fingertips of design engineers as they are designing in their applications. As more architects and design engineers adopt the BIM process, it’s vitally important for Taco to be part of that trend, and as early as possible. “In short, Taco needs to be where HVAC design engineers are going with BIM.” Going into 2012 Taco is definitely standing alongside design engineers in their use of Revit MEP, having completed its conversion of all its commercial pumps, heat transfer products and air controls to Revit file formats – over 900 individual products in all, encompassing 24 separate product groups. In a further move into the BIM arena, Taco initially selected CADworks’ BIMXchange, a powerful search and configuration tool which inside of Revit and provides clients with direct access to content right in their design, and has subsequently added the complementary functionality of Catalog Data Solutions’ BIM Content Management Solution, including its multi-format CAD modeling engine, in order to bring additional capabilities and reach to Taco’s management of its growing library of detailed product information. CADworks is an Autodesk MEP technology partner. Catalog Data Solutions (CDS) is a leading provider of online product selection tools for industrial and building product manufacturers. CDS helps grow sales and strengthen customer loyalty for its clients through interactive online catalogs, eCommerce, automated CAD & BIM model delivery and product configuration solutions. Customers can access the best Revit MEP content at a variety of destinations, starting with the Taco website (www.taco-hvac. com), which serves as the most authoritative source for Taco product information and where the CADworks BIMXchange is accessed, and also through Autodesk Seek.

C O N TA C T I N F O R M AT I O N : Taco, Inc. www.taco-hvac.com

With the implementation of CDS’ powerful BIM Content Management platform, Taco can ensure that its large library of BIM models remains current and accurate wherever customers discover them. Not only is Taco able to provide additional formats to support popular mechanical design applications (ProE, SolidWorks and others), but customers know that the files they download are the most current revisions and of minimal size, providing them with just what they need for their projects. w w w. esmag a zin e. co m

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Computers&Software  FIRE ALARMS

 CFD

The company has released PS-TOOLS, an upgraded time-saving software tool designed to simplify fire alarm system installs and service while building a database of information on each installation. The program assists users in system configuration, including component selection and panel programming. It also helps with remote diagnostics and can be used with nearly every one of the company’s addressable and conventional control panel on the market today. — Fire Lite F O R F R E E I N F O R M AT I O N C I R C L E : 7 0 0

 MANAGEMENT TOOLS The company’s Signature 2010 r2 includes new refrigerant tracking, a service estimator, and a customer relationship management (CRM) accelerator for construction that streamline business processes users need. Features include the functions and tools tailored to the requirements of specific organizational roles; integration with Microsoft Dynamics CRM to manage bids; and SQL SSRS with enhanced interoperability with other reporting tools, including PowerPivot.

CoolitDC v5.0 adds a new highly accurate turbulence flow model finetuned for data center modeling, and implements rack data import from Excel, and from CAD files. The result is faster, easier, and more efficient model building. In addition, optimized grid generation enhances the user experience and creates more robust models, and the intuitive user interface makes it is easy to learn for engineers with no product training. — Daat Research Corp.

— WennSoft F O R F R E E I N F O R M AT I O N C I R C L E : 7 0 1

 STEAM SYSTEMS

F O R F R E E I N F O R M AT I O N C I R C L E : 7 0 2

 ALARM HISTORY MANAGEMENT The company has upgraded both its Environet and Racknet solutions. Version 3.4 features a new streamlined alarm and history configuration Environet. Racknet now includes the ability to export and import device templates and export values via SNMP or BACnet. The more efficient alarm and history configuration is designed to save setup time and cost associated with the configuration. — Geist

Th The company’s ’ HVAC Solutions S l i has been rebranded with the new name Steam DesignPro. The software was created as a visual design tool through an easy, drag-and-drop method for designing and modeling HVAC steam systems. The intuitive Windows®-based software allows for easy modeling of steam generation, steam distribution, steam utilization, and condensate-handling systems. — Spirax Sarco

F O R F R E E I N F O R M AT I O N C I R C L E : 7 0 4

 ENERGY ASSESSMENT The company has released Virtual Energy Assessment™ (VEA) — a data analytics solution designed to determine actionable energy savings opportunities without stepping on-site or installing specialized hardware. Using only a building’s address and its energy consumption interval data, VEA enables utilities, energy service providers, and others to rapidly prioritize a portfolio of commercial buildings and cost-effectively identify potential energy efficiency improvements related to heating, cooling, lighting, building controls, and more.

F O R F R E E I N F O R M AT I O N C I R C L E : 7 0 3

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— Retroficiency F O R F R E E I N F O R M AT I O N C I R C L E : 7 0 5

Building on its tradition of industry leadership, Carrier is bringing together some of the world’s thought leaders to create a vision for the future at the 2012 Global Engineering Conference. The event features a mix of keynote addresses and concurrent workshops focused on rethinking current practices, restoring natural resources and developing regenerative initiatives. Keynote speakers include Rick Fedrizzi, president, CEO and founding chair, U.S. Green Building Council (USGBC), David Gottfried, founder of the World Green Building Council, and other leaders of the green building movement.

For additional details and registration information, visit www.2012GEC.com.

Presented by:

Sponsored by:

Issues&Events AHRI publishes standard for VFDs



The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) has published an industry-first standard for VFDs. As with all AHRI Standards, 1210 (I-P)-2011 and 1211 (SI)-2011, Performance Rating of Variable Frequency Drives, are available free of charge on AHRI’s website. “What began in 2006 as a small group of members working toward a new Air-Conditioning and Refrigeration Institute (AHRI’s predecessor organization) product section has led to a standard that will level the playing field and lead to yet another world-class AHRI certification program,” said Stephen Yurek, AHRI’s president and CEO. Yurek added that the certification program is expected to launch this summer. Once considered a “high-tech” option for only the most elaborate HVACR systems, VFDs have been in the mainstream for several years, providing better efficiency with improved reliability. VFDs produce fast-rising, high frequency pulses of electrical energy to control and power motors. The section includes the following member companies: ABB, Danfoss, Emerson Climate Technologies, Honeywell, Johnson Controls, McQuay International, Schneider-Electric, and Trane.

New date for 2012 ISH China & CIHE



ISH China & CIHE, the China International Trade Fair for Sanitation, Heating, Ventilation & Air-Conditioning, has announced a change in date for its 2012 show, which will now be held at Beijing’s New China International Exhibition Center from April 4-6, 2012. Previously the show, organized by Messe Frankfurt (Shanghai) Co Ltd and B&D Tiger Exhibition Co Ltd and supported by international and domestic industry associations, was scheduled to open from April 2-4, 2012. Explaining the change of show date, Richard Li, deputy general manager of Messe Frankfurt in China said, “The Chinese government has just decreed that the national Tomb Sweeping public holiday will be extended into our original show date. To accommodate these new and additional public holidays, we have changed our show dates. With this change, the new date will be more convenient for exhibitors and visitors, and we will ensure that our various services, publicity, and promotion work will support both exhibitor and visitor objectives.” Li added that more than 700 exhibitors have already signed up for ISH China & CIHE, with 40% percent of exhibitors having bigger booths at the 2012 show, compared with the 2011 show. “As a result, 90% of the total 70,000-square-meter exhibition area has already been sold,” Li said. “Our 2012 exhibitors include leading industry names such as A.O. Smith, BDR Therma, Bosch, Devotion, Grohe, Huida, Immergas, Joyou, Kohler, Marley & Weil-McLain, Micoe, Riello Group, TECE, Vaillant, Vanward, and Zehnder.” BDR Therma, a heating and hot water system manufacturer and distributor, operates in 70 countries, including China. Xie Xintian, commercial general manager for BDR Thermea China said, “BDR Thermea is one of Europe’s three leading heating groups owning some famous brands as BAXI, CHAPPEE,

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and De-Dietrich. We are now investing more into the Chinese market to bring more energy-efficient, heating products to our Chinese clients, as well as offering a better professional service team. At the powerful platform of ISH China & CIHE, we are looking forward to showcasing our comprehensive and updated low carbon products which help to protect the environment.” American brands Marley and Weil-McLain will be exhibiting again at the show. ISH China & CIHE is part of Messe Frankfurt’s architecture and technology fairs, headed by the biennial ISH event in Frankfurt taking place March 12-16, 2013. For more information, visit www.ishc-cihe.com or email [email protected].

ASHRAE recognizes outstanding achievement with awards, Fellows



Thirty-six people were recognized by ASHRAE for their contributions to the Society and the building industry at the Society’s 2012 Winter Conference. The Hall of Fame honors deceased members of the Society who have made milestone contributions to the growth of HVACR technology. The recipient is Presidential Member Roderick Kirkwood, Fellow ASHRAE, Life Member. Fellow ASHRAE is a membership grade that recognizes distinction in the arts and sciences of environmental technology and is earned through achievement as a researcher, designer, educator, or engineering executive. The Society elevated 13 members to the grade of Fellow ASHRAE: • Constantinos Balaras is research director, Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Greece. • Van Baxter is senior research and development engineer, Oak Ridge National Laboratory, Oak Ridge, TN. • Vin Gupta is senior principal engineer, 3M Company, St. Paul, MN. • Mark Modera is professor, civil environmental engineering, mechanical and aerospace engineering, and director, Western Cooling Efficiency Center, University of California at Davis. • Darin Nutter is associate professor of mechanical engineering, University of Arkansas, Fayetteville. • Tom Phoenix is principal and vice president, Moser Mayer Phoenix Associates, Greensboro, NC. • Arshad Sheikh is owner/principal consultant, SES Consulting Engineers, Lahore, Pakistan. • Edward Vineyard is group leader, building equipment research, Oak Ridge National Laboratory, Oak Ridge, TN. • Iain Walker is scientist, Lawrence Berkeley National Laboratory, Berkeley, CA. • Brian Warwicker is consultant, Brian Warwicker Partnership, Ltd., London, U.K. • Bill Worek is professor and director, Energy Technology Laboratory, University of Illinois-Chicago. • Xudong Yang is Chang-Jiang professor and deputy director, Institute of Built Environment, School of Architecture, Tsinghua University, Beijing, China • Jianshun Zhang is professor and director, building energy and environmental systems lab, department of mechanical

Issues&Events engineering and aerospace engineering, Syracuse University, Syracuse, NY. The ASHRAE Technology Awards recognize outstanding achievements by members who have successfully applied innovative building designs, which incorporate ASHRAE standards for effective energy management and IAQ. Six projects received first-place ASHRAE Technology Awards: • Roland Charneux, P.Eng., ASHRAE Fellow, ASHRAE Certified Healthcare Facility Design Professional, Pageau Morel & Associates, Montreal, Quebec, Canada in the new commercial buildings category for Mountain Equipment Co-op, Longueuil, Quebec, Canada. The building is owned by the co-op. • Ken Sonmor, Ecovision Consulting, Montreal, Quebec, Canada in the existing commercial buildings category for the IKEA Brossard Distribution Center,

Quebec, Canada. The building is owned by IKEA Distribution Services. • René Dansereau, Dessau, Longueuil, Quebec, Canada the new educational facilities category for the Université de Sherbrooke – Campus de Longueuil, Quebec, Canada. The building is owned by the university. • Paul Marmion, Stantec Consulting, Ltd., Vancouver, British Columbia, Canada in the new health care facilities category for Abbotsford Regional Hospital and Cancer Centre, British Columbia, Canada. The building is sponsored by Laing Investments Management Services and owned by the hospital. • Blake Ellis, P.E., Burns & McDonnell, Kansas City, MO in the new industrial facilities or professes category for thermal energy storage at Texas Meidcal Center, Houston. The owner is Thermal Energy Corp. • Luc Simard, Compressor Systems Control (CSC), Inc., Les Coteaux, Quebec,

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Issues&Events Canada in the existing industrial facilities or presses category for the Arena Marcel Dutil, St-Gédéon-de-Beauce, Quebec, Canada. The building is owned by the Municipalite St-Gédéonde-Beauce. The ASHRAE Student Design Project Competition challenged teams of students to create an integrated sustainable building design as well as select and design HVACR systems for the Drake Well Museum located in Titusville, PA, the site where Edwin L. Drake drilled the world’s first oil well in 1859 and launched the modern petroleum industry. First place in HVAC System Design was awarded to Holly Brink, Michael Crabb, James Dougherty, Andrew Gilliam, and Gina Halbom of University of NebraksaOmaha. First place in HVAC System Selection was awarded to Lynn Gualtieri, Evan Oda, Kristin Porter, Navid Saiidnia, Jeffrey Wong, and Cameron Young of California Polytechnic State University, San Luis Obispo, CA. First place in the Integrated Sustainable Building Design was awarded to Qi Te, Zhang Qiqi, and Chen Yuanyi of Tianjin University, China. The John F. James International Award is given to an ASHRAE member who has done the most to enhance the Society’s international presence. The recipient is Edward Ka Cheung Tsui, managing director, Intelligent Technologies, Ltd., Hong Kong. The E.K. Campbell Award honors outstanding achievements by engineering educators and is presented by the ASHRAE Life Mem-

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bers Club. The recipient is Wayne Helmer, Ph.D., P.E., professor of mechanical engineering, Arkansas Tech University, Russellville, AR.

Two Italian solar HVAC companies launch joint U.S. venture



Kloben, Italy’s largest manufacturer of solar thermal equipment, and Universal, one of Italy’s largest solar integration companies, have formed KU Solar to distribute their solar HVAC systems in the U.S. KU Solar, located in Kansas City, is introducing a scalable product line of units ranging in size from 3 to 20 tons and will stock packaged systems, components, and all the necessary equipment to support the market. In addition, the company will provide engineering, install support and training from the Kansas City office. According to Massimo Galli, KU Solar’s chief operating officer, “Over the last five years, we have participated in the evolution of the world-wide renewable energy business. In Italy, which has become the largest solar market in the world, we have earned a leadership position because of our recognized expertise. Our business approach enables us to enter the North American market with a proven solar cooling and heating solution that performs. We intend to make the appropriate investments in our Kansas City operations to ensure our dealers and installers receive the highest quality of support and are successful.” “Kansas City was chosen to locate this business because of its ability to support our supply chain, leadership in green building, a growing solar industry, and access to a technical and after-sales assistance network,” said Galli. Solar HVAC systems use solar thermal collectors which are designed to take energy from the sun and produce a cooling effect in the summer and a heating effect in the winter. These systems can eliminate the increasing cost of purchasing of electricity and natural gas to power conventional HVAC equipment. In addition, these systems are eligible for the 30% Federal Investment Tax Credit and Modified Accelerated Cost-Recovery System (MACRS) and Bonus Depreciation. Other financial incentives may be available depending upon location. ROI ranges from four to eight years and depends upon local utility rates and incentives, according to the manufacturers.

EE Global Forum to highlight, influence next generation of energy efficiency



EE Global will be held March 27-29, 2012, at The Peabody Resort in Orlando, FL. Co-hosted by the Alliance to Save Energy and its affiliated Southeast Energy Efficiency Alliance, EE Global 2012 is the latest annual gathering of influential energy efficiency professionals from around the world. The forum will focus on how policy,

Issues&Events innovation, implementation, and integration of the latest technologies are shaping a more energy-efficient world. Testimonials from corporate CEOs whose companies participated in EE Global 2011 in Brussels, Belgium, speak to the conference’s value in advancing energy efficiency. This year’s conference, located in the Southeast region of the United States, will explore how energy efficiency policies and practices are making a difference for businesses, in municipalities and internationally, as governments optimize efficiency to increase economic security and universal access to energy efficiency. The conference’s Solutions Showcase allows companies to display their newest energy-efficient products and systems, whether for business, industrial or consumer applications. EE Global draws hundreds of senior- and executive-level professionals from the government, business and nonprofit sectors, providing a wealth of opportunities for cross-sector partnerships and networking. Energy efficiency visionaries Sen. Mark Warner (D-VA) and Jeff Drees, Schneider Electric U.S. president co-chair the conference’s planning committee. The list of confirmed speakers continues to grow, including the following names that illustrate the scope and diversity of expertise to be found at EE Global’s “Executive Dialogue” and plenary sessions: • Amit Bando, secretariat, International Partnership for Energy Efficiency Cooperation (IPEEC) • Kateri Callahan, president, Alliance to Save Energy • Faren Dancer, executive director, Unicopia, Inc. • Thomas Dreessen, chairman and CEO, Energy Efficiency Project Investment Company, Ltd. • Mark Hopkins, director of international energy efficiency, UN Foundation • Ben Jones, director, Bucks County Water & Sewer Authority • Kenji Kobayashi, president, Asia-Pacific Energy Research Centre • Jean Lupinacci, head of the Energy Star Program, U.S. Environmental Protection Agency • Dr. James McMahon, Lawrence Berkeley National Laboratory • Michael Mills, president, Southeast Energy Efficiency Alliance • James Morozzi, president and CEO, Gridwise Alliance • Hon. Bruce Oreck, U.S. Ambassador to Finland • Boris Palmer, Lord Mayor, Tuebingen, Germany • Fernando Pinto Dias Perrone, head of Energy Efficiency Project Department, Electrobras • Hon. Jackalyne Pfannenstiel, assistant secretary for energy, installations and environment, U.S. Department of the Navy • Ed Pinero, Independent Chair, ISO 50001 • Dr. Thomas Reddoch, executive director, Electric Power Research Institute • Roland Risser, building technologies program manager, U.S. Department of Energy • Dr. Lisa Ryan, senior energy economist, International Energy Agency • Kim Saylors-Laster, vice president of energy, Wal-Mart International • Dr. Beth Stevens, senior vice president, Environmental Affairs, Disney • Robert Tromop, energy analyst, International Energy Agency • Robert Wilkins, vice president of public affairs, Danfoss • Wang Yanjia, professor, Tsinghua University Energy Science

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ProductsInFocus  TEMPERATURE MONITORS

 PIPING

The Delta D T Alert™ is a self-contained temperature monitoring device that attaches magnetically to elecmonito enclosure covers, revealing differences between trical e the temperature inside the electrical enclosure th and the ambient temperature in the room containing the enclosure. — Delta T Engineering

The company’s Ecoflex® pre-insulated pipe is available in 1-, 1¼- and 1½-in. ASTM sizes. Ideal for commercial and residential applications that require insulated underground piping, ASTM Ecoflex features hePEX™ plus barrier tubing surrounded by closedcell, PEX-foam insulation and covered by a waterproof, corrugated HDPE jacket, making it ideal for direct-burial applications.

FREE INFO: CIRCLE NO. 300

 WATER MANAGEMENT SYSTEMS The company’s water management systems feature a controls system that performs input/output commands, runs on-board diagnostics, and integrates with most BAS. The system comes with a programmable touchscreen and remote access capability via Ethernet. All components are skid-mounted, prewired, pre-piped, and sized to meet project parameters and systems can be customized for specific applications.

— Uponor —A Aquanomix i

FREE INFO: CIRCLE NO. 301

 BOILERS

FREE INFO: CIRCLE NO. 302

 GAS DETECTORS The company’s Nanotechnology Metal Oxide Semiconductor hydrogen sulfide gas (NTMOS H2S) detector has earned approval for use in locations that require an ingress protection rating of IP66/67. In addition, the NTMOS boasts a life-saving, speed-of-response performance that detects H2S in six seconds and delivers a proper detection solution in challenging environments where electrochemical sensing technologies are not preferred.

The company’s watertube boilers provide up to 100 ton/hr of steam (6,000 bhp) and feature state-of-the-art membrane wall welding technology. Applications include large multi-national food processing companies, chemical companies, and power generation plants, as examples. These industrial watertube boilers are also used in the waste heat recovery market for power plants and large factories. — Fulton

— Det-Tronics FREE INFO: CIRCLE NO. 304

 VOLTAGE MEASUREMENTS The AEGIS™ Shaft Voltage Test Kit allows users to measure and document damaging VFD-induced voltages while there is still time to head off bearing damage and equipment downtime. The kit can test every VFD-controlled motor wherever it is operating, providing a tool for anyone who needs to determine and convince others that a motor is or is not subject to stray shaft voltages great enough to harm motor bearings. — Electro Static Technology (EST) and Fluke Corporation

FREE INFO: CIRCLE NO. 303

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ProductsInFocus  LIQUID ALARMS

 CONTROLLERS The company’s Liquid Alarm can be used to detect when drums, tanks, flasks, or beakers are close to overfilling. It’s the perfect reminder for unattended filling of any container. The moment a solution touches the sensor, the alarm sounds and a red LED flashes continually until the liquid no longer touches the sensor. — Control Company

FREE INFO: CIRCLE NO. 306

 HEAT PUMPS The company’s Infinity® 20 heat pump with Greenspeed™ intelligence has an HSPF efficiency rating up to 13. The new heat pump fluidly adjusts its output within a range of up to 40% to 100% of capacity to match any heating or cooling requirement. The Infinity heat pump delivers up to 69% higher heating efficiency in the three-ton size. In addition, the pump can be utilized with an upgraded Infinity control software package that constantly monitors a wider range of critical system parameters.

The AspectFTNexus™ area controller is designed to integrate and manage a wide array of HVAC, monitoring, and systems while giving critical building syste the user the power and convenience of modern web technologies. With the AspectFT-Nexus, users get the horsepower of a server with additional ports for building automation applications. Through the use of the AspectFT® technology, a standard web browser can be used to access web pages designed to display critical building information, including historical trends, alarms, and energy data. — American Auto Matrix®

— Carrier FREE INFO: CIRCLE NO. 307

 INSULATION

FREE INFO: CIRCLE NO. 308

 TEMPERATURE CONTROLS The SMART SYSTEM™ Multi Temperature Loop Control (MTLC) is designed to simplify the integration of KNIGHT Heating Boilers into multiple temperature hydronic heating systems. The unit can control up to three separate space heating loop temperatures, while maximizing the efficiency of the heating boiler as a primary function. The new MTLC works in conjunction with the on-board SMART SYSTEM Control on all KNIGHT XL Commercial Heating Boilers.

Superwool® Plus™ high temperature fiber insulation is suitable for repairing and lining aluminum furnaces. As an added benefit, all Superwool® insulating fibers are non-wetting to molten aluminum. This reduces the concerns about metal adherence and penetration into the fibers, which is particularly useful in aluminum smelting and casting operations where molten metal is present. — Morgan Thermal Ceramics

— Lochinvar FREE INFO: CIRCLE NO. 310

 HEAT PUMPS The Versatec™ Base is a water source heat pump for water loop geothermal applications. The unit exceeds ASHRAE 90.1 and geotherma efficiencies, ciencie while utilizing environmentally friendly R410A refrigerant. Available in a wide selection of capacities refr (018 to 070 MBtuh output), the heat pump features a reciprocating single-capacity compressor paired with a PSC blower motor to provide high efficiency while ensuring quiet operation and a wide range of airflow selections. w — WaterFurnace International, Inc.

FREE INFO: CIRCLE NO. 309

FREE INFO: CIRCLE NO. 311

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ProductsInFocus  SMOKE DETECTORS

 FANS

The FAAST™ Fire Alarm Aspiration Sensing Technology model 8100 detector eliminates the need for technicians to create a separate parallel data network to identify the location of an initiating device. FAAST’s TCP/IP connectivity is achieved through its onboard Ethernet port. Beyond email notifications, this interface enables facility managers to monitor the detector from any Internet browser, smart phone, or mobile device with VPN capability. — System Sensor FREE INFO: CIRCLE NO. 312

 DESCALING SYSTEMS The ScaleBlaster descaling system produces an oscillating electronic field to remove hard water (scale) from pipes, fixtures, and heat transfer surfaces. The complex modulating frequency wave form produces an inaudible sonic impulse that changes the electrical and physical properties of the calcium carbonate crystals and other minerals, resulting in the calcium to repel, rather than adhere. The system is designed for any pipe, cooling tower, or boiler application.

The Whisper Quiet Fan for the PT2 Cooling Tower provides 12-15 dBA sound reduction, has CTI certified thermal capacity, and is ASHRAE 90.1 compliant. The fan itself is a chemical resistant, durable, high solidity, single piece, molded fan made out of fiberglass reinforced polyester. The fan is fully factory-installed and aligned, requiring no field installation. — Baltimore Aircoil Company

— Clearwater Enviro Technologies FREE INFO: CIRCLE NO. 313

 THERMOCOUPLES

FREE INFO: CIRCLE NO. 314

 SIGNAL CONDITIONING The Endevco® is a 16-channel power supply and piezoelectric signal conditioner designed to accept inputs from ISOTRON® or other piezoelectric transducers and remote charge converters (RCC) within a high-impedance measurement system. Each channel of the Endevco® model 2793 offers constant current excitation, either 4 mA or 10 mA for the transducer or RCC, with all outputs buffered for driving long cables. — Meggitt Sensing Systems

The company introduces its thermocouple/voltage input USB data acquisition module, the OM-DAQUSB-2401 Series. This module is user programmable for type J, K, T, E, R, S, B, N thermocouples or voltage input and features eight differential or 16 single-ended analog inputs, 24 bit resolution with up to 1,000 samples/ sec throughput.

FREE INFO: CIRCLE NO. 316

 HEATING AND COOLING SYSTEMS

— Omega Engineering

The company provides a full range of combination heating and cooling systems from 50°F to 600°. Combined with a chiller, the company’s heat transfer fluid system integrates the benefits and features of both products into a self-supporting unit providing heating and cooling in one compact package. These systems are suited for applications including jacketed vessels, mixers and reactors; multiple-zone processes; and installations where rapid cooling is required. — Mokon FREE INFO: CIRCLE NO. 317

FREE INFO: CIRCLE NO. 315

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Literature&Catalogs  MOTORS

 WLAN COVERAGE

The company has released its 2012 catalog of low voltage brushless DC and intelligent servo motors. The expanded catalog includes detailed specifications on custom configurable BLDC motors, controls, gearheads, brakes, encoders, and accessories and is now available for complimentary download at the company's website or by email request for hard copies. — Dunkermotor FREE INFO: CIRCLE NO. 400

The company has published a large wall poster, measuring 24- x 36-in., which includes channel frequencies and appropriate worldwide channel selections for 802.11a/b/g/n, typical indoor WLAN coverage range with data rates, key term definitions, and more. — Fluke

 FANS The company’s Model SP and CSP centrifugal ceiling and cabinet exhaust fans, designed for clean air applications requiring low sound levels, are featured in an updated 24-page catalog. AMCA certified and Energy Star™ rated fan models are highlighted, along with new grilles and lighted grille lens options. The catalog includes standard construction features, detailed configurations, control, filters, and discharge accessories information, and typical specifications. — Greenheck

FREE INFO: CIRCLE NO. 402

FREE INFO: CIRCLE NO. 401

 ASSEMBLIES

 CONTROLS This brochure contains over 100 full-color pages of the latest state-of-the art products from the company’s automation line including programmable logic controllers, smart relays, enclosures, process measurement and control devices, motion control sensors, human machine interface, pushbuttons, proximity sensors, relays and timers, and wire connections. Also included is a user-friendly index for easy product search, economical choices, popular models, and accessories. — Omega Engineering

A new brochure highlights updates to the company’s ProServe® Design, Assembly, and Marking suite. ProServe® consists of free professional-grade software, as well as plotters/printers that combine design and engineering tasks with WAGO’s 25,000 products to create assemblies. Revisions include new 6.0 software that utilizes a high-performance SQL server database, and expanded marking/design conveniences. — WAGO FREE INFO: CIRCLE NO. 403

FREE INFO: CIRCLE NO. 404

 HEAT PUMPS This book is designed to provide the reader with a comprehensive overview of the basic heat pump system, as well as its operations and principles. The intent of the book is to offer technicians information to build upon, in order to enhance their knowledge of the air conditioning and heating field, and more specifically, heat pumps. This book covers problems and provides solutions to refrigerant charging, indoor airflow calculation, and methods of preventing unnecessary heat pump malfunctions. — Esco Group FREE INFO: CIRCLE NO. 405

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ENERGY-EFFICIENT SOLUTIONS FOR HIGH-PERFORMANCE BUILDINGS

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A-J Manufacturing www.ajmfg.com 800-247-5746 Page 65 Info #13 AAON, Inc. www.aaon.com Page 54, BC Info #35 Aerco International, Inc. www.aerco.com 800-526-0288 Page 5 Info #69 Airius www.theairpear.com 888-AIR-PEAR Page 45 Info #304 Bradford-White www.bradfordwhite.com 800-523-2931 Page 48-49 Info #128 Bryan Boilers www.bryanboilers.com 765-473-6654 Page 16 Info #9 Building Automation Products www.bapihvac.com/voc 608-735-4800 Page 64 Info #316

CAMUS Hydronics www.camus-hydronics.com Page 23 Info #198 Carrier Corporation www.2012GEC.com Page 61 Contemporary Controls www.basrouter.com Page 63 Info #27 Daikin AC www.daikinleads.com Page 50-51 Info #310 E-MON www.emon.com/es212.asp 800-334-3666 Page 32 Info #183 ebm-papst Inc. www.ebmpapst.us Page 11, 55 Info #129

Goodway www.goodway.com/descaler 888-364-3441 Page 46 Info #34

Orival Inc. www.orival.com 800-567-9767 Page 18, 47 Info #105, 405

Tridium www.tridium.com www.niagarasummit.com Page 21, 31 Info #57, 157

Harsco Industrial www.harscopk.com Page 13, 57 Info #125

Panasonic www.panasonic.com/aircon Page IFC Info #308

Unilux www.uniluxam.com 518-344-7490 Page 27 Info #82

Innotech www.innotechamerica.com 360-892-1299 Page 25, 58 Info #85

Parker Boiler www.parkerboiler.com 323-727-9800 Page 46 Info #16

Vapac www.vapachumidification.com Page 33 Info #316

Mars Air Systems www.marsair.com 800-421-1266 Page 63 Info #137

Schneider Electric www.SEreply.com key code k706v Page 9 Info #110

Weil-McLain www.weil-mclain.com Page 3 Info #63

Semco www.semcohvac.com Page 17 Info #35

Zoo Fans www.zoofans.com 859-918-9978 Page 20 Info #311

Mitsubishi Electric www.totalinstalledcosts.com 800-433-4822 Page 52-53 Info #87 Nortec www.humidity.com 866-NORTEC1 Page 29, 43 Info #144, 244

Evolv www.evolveindustrial.com 518-344-7490 Page 56 Info #301

Onicon www.onicon.com 727-447-6140 Page 35 Info #62

Fujitsu www.fujitsugeneral.com Page 7 Info #92

Shortridge Instruments, Inc. www.shortridge.com 480-991-6744 Page 65 Info #49 Taco www.tacohvac.com Page 15, 59 Info #83

Sales Staff E. Moran  Peter Publisher

Dimitrieski  Dean Midwest Advertising Manager

e-mail: [email protected] phone: 914-882-7033 • fax: 248-502-1052 address: 3949 Old Post Rd., Suite 200-D Charlestown RI 02813

Burriss  Vic Eastern Advertising Manager

e-mail: [email protected] phone: 248-244-6469 • fax: 248-786-1419 address: 2401 W. Big Beaver Rd., Suite 700 Troy, MI 48084

Michael O’Connor Classified Manager e-mail: [email protected] phone: 610-354-9552 • fax: 610-354-9390

Barone, Jr.  Russell West Coast Advertising Manager

e-mail: [email protected] phone: 610-436-4220 • fax: 248-502-2078 address: 600 Willow Brook Lane, Suite 610 West Chester, PA 19380

e-mail: [email protected] phone: 219-464-4464 address: 5 Washington Street Valparaiso, IN 46383

Glossary Here are some common abbreviations and terms found in the pages of Engineered Systems.

A

E

P

A/C – air conditioning ach – air changes per hour AE – architectural and engineering; or architect and engineer AFD – adjustable-frequency drive AHJ – authority having jurisdiction AHU– air-handling unit ASD – adjustable-speed drive ASHRAE – American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. ATC – automatic temperature control

EMS – energy management system EPA – U.S. Environmental Protection Agency ERV – energy recovery ventilator

PFPT – prefunctional performance test PM – preventive maintenance PID – proportional, integral, derivative

F

R

B

H

fpm – feet per minute FPT – functional performance test

G gpm – gallons per minute

rh – relative humidity RFP – request for proposal RFS – request for submittal ROI – return on investment RO – reverse osmosis RTD – resistance temperature detector

BACnet – a data communication protocol for building automation and control networks BAS – building automation system bhp – boiler horsepower; also, brake horsepower BMS – building management system BofD – basis of design

HEPA – high-efficiency particulate air HTML – hypertext markup language HTTP – hypertext transfer protocol HWR – hot water return HWS – hot water supply

S

I

C

IAQ – indoor air quality IS – information systems IT – information technology

TAB – testing and balancing TES – thermal energy storage

CAD – computer-aided design cfm – cubic feet per minute CHW – chilled water CMMS – computerized maintenance management system CO2– carbon dioxide COP – coefficient of performance CRAC – computer room air conditioner

D D-B – design-build db – drybulb DDC – direct digital controls DID – design intent document DOAS – dedicated outdoor air system DOE – U.S. Department of Energy DR – demand response DX – direct expansion

L LAN – local area network LEED® – Leadership in Energy and Environmental Design, a designation by the U.S. Green Building Council LEED® AP – LEED Accredited Professional

M MEC – mechanical, electrical, communication MEP – mechanical, electrical, plumbing MERV – minimum efficiency rating value

O O&M – operations and maintenance oBIX – Open Building Information Exchange OEM – original equipment manufacturer OA – outside air OPR – owner’s project requirements

SA – supply air scfm – standard cubic feet per minute

T U UL – Underwriter's Laboratory USGBC – U.S. Green Building Council UV – ultraviolet

V VAV – variable-air volume VFD – variable-frequency drive VOIP – voice-over Internet protocol VSD – variable-speed drive

X XML – extensible markup language

W WAN – wide area network wb – wetbulb wc – water column wg – water gauge

w w w. esmag a zin e. co m

73

Tomorrow’sEnvironment BY HOWARD MCKEW, P.E., C.P.E.

COMMISSIONING Of Infection Control It’s time for an organized focus on vigilance in patient environments.



Back in January 2011, I wrote in this column about hospitalacquired infection based on my introduction to this serious problem and my participating as a steering committee member for the Hospital Associated Infection Organization (HAIO). Along with volunteering to participate in the HAIO, I have learned a lot more about hospital HVAC design considerations, as well as routine hospital activities associated with patient care. This year, I have partnered up with Dr. Stephanie Taylor, Taylor Healthcare Commissioning, Inc., to pursue a new business venture focused more specifically on the patient’s environment through third-party commissioning of infection control. The thinking is that we should be more aggressively pursuing infection control (IC) in sync with HVAC design engineering, startup, commissioning, building automation, and maintenance to the same level as the pharmaceutical industry achieved their clean room compliance. During numerous conversations with other HAIO volunteers, we’ve come away with the belief (right or wrong) that the pharmaceutical industry is far more concerned with the quality of their service/product compared to the health care industry. What I mean by this is that pharmaceutical facilities continuously design, build, operate, and maintain a clean environment to ensure that each of their products are protected from the work environment prior to leaving the facility. That isn’t always the case with hospitals for a long list of reasons, many of which are valid, along with not-so-valid reasons that need to change due to progressive thinking, insurance reimbursement, and to ensure the patient will leave the hospital healthier than when they entered. In other words, there needs to be a culture change or as they said in the 1980s a “paradigm shift” from current health care standards and enforcement of environment health policy and procedure.

THE NEXT ADVENTURE Based on my years of health care engineering and system troubleshooting experience, I’ve always been aware that many hospitals do not hold their HVAC systems up to the standards set by the pharmaceutical industry. What I have recently learned is that IC within medical facilities does not always achieve the same quality control standards as the pharmaceutical industry, either. Many in the health care industry may dispute my assessment, but my partnering physician has referred me to enough articles (e.g., “Adverse Events in Hospitals: National Incidence Among Medical Beneficiaries,” Department of Heath and Human Services, November 2010) supporting the concerns with IC that include and go well beyond the HVAC systems. This issue, which I’ve been keenly interested in for just over two years, got me to thinking that we have commissioning (Cx) of building systems and we have Cx of building envelopes, so why not Cx of IC? Thus, my next great adventure is working with Dr. Taylor, who just happens to have multiple professional IC certifications, in pur-

74

En gi n e e r e d S y stem s

February 2012

Cx ser ervi vice ces s ha have ve ext xten ende ded d ou outt to tele te leco comm mmun unic icat atio ion n, sec ecur urit ity y, lif ife e safe sa fety ty,, et etc. c.,, an and d ha have ve in re rece cent nt yea ears rs begun begu n to to inc ncllud lude de the he bui uild ild ldiing ing enve en velo lope pe.. No Now, w, we wa want nt to Cx the heal he alth th car are e fa faci cili lity ty hum uman an fac acto tor r beca be caus ca use us e al almo most mo st 100 00,0 ,000 ,0 00 peo eopl ple pl e di die e each h year from infecti f tions. suit of third-party commissioning of IC policies and procedures. Like my own Commissioning 1-2-3 building system process, we are formatting a Cx IC 1-2-3 that is being built on standardization, quality control, and time management. Of course, the Cx IC process and its documents being developed are significantly different than building system Cx, but the approach will be the same beginning with data collection and communication, data analysis, solution planning, solution implementation, monitoring, measuring, benchmarking, and training. With each project, we can include monitoring, measuring, and benchmarking using the 21st-century touchscreen approach that will efficiently assist in protecting health care facilities from those who would see IC (or lack of IC) documentation as an opportunity to financially benefit from this tragic situation. Our business plan is to embrace the use of handheld technology, iPods and iPads, in sync with the facility’s CMMS system to achieve continuous monitoring and reporting associated with IC. Almost 100,000 people die each year from infections, with one report stating that an estimated 13.5% of hospitalized Medicare beneficiaries experienced adverse patient events (APE) during their hospital stays. New health care laws are already focused on the financial liabilities associated with this broad range of APEs and, as the pharmaceutical industry learned a long time ago, money talks. If a pharmaceutical company is to survive and prosper, they must provide a clean room environment for research, product development, and manufacture of their products. Health care has a far more important and more sensitive product, and we believe Cx IC will help to eliminate APEs and contribute to better design, operation, and maintenance of health care facilities. ES You can reach McKew at [email protected] for business development planning advice and and D-B/IPD facilitator services. For more online publications, visit www.buildingsmartsoftware.com.

Save $200 with Super Early Bird Registration! Expires 5/31/12 September 12-13, 2012 • The Westin Tysons Corner • Falls Church, VA

Make High-Performance Buildings part of your 2012 Plans Save the Date: September 12-13, 2012 Join Engineered Systems and Building Intelligence Group at the High-Performance Buildings Conference where we will deliver industry leadership and expertise to help solve today’s building systems challenges. In this accessible and interactive forum, building professionals learn about the latest technologies and practices to deliver high performance and energy efficiency. The conference addresses the full spectrum of mechanical and electrical buildings systems for both new construction and existing buildings. Attendees will benefit from exceptional networking with presenters and peers at this live engineered systems experience.

Call for Presentations Reap the benefits of your hard work and share how you are succeeding in today’s challenging and changing environment.

Submission of abstracts: March 31, 2012 Submit your abstract at www.esmagconference.com

GET YOUR COMPANY INVOLVED SO THAT YOU CAN STAY AHEAD OF THE COMPETITION! We offer several sponsorship opportunities to extend your conference exposure. Contact your rep to learn more! Peter Moran 914-882-7033 [email protected]

Jeff Seewald 651-210-8967 [email protected]

Paul Ehrlich 651-210-0105 [email protected]

Vic Burriss 610-436-4220 x8523 [email protected]

Russell Barone, Jr. 219-464-4464 [email protected]

Dean Dimitrieski 248-244-6469 [email protected]

w w w. e s m a g c o n f e r e n c e . c o m CONFERENCE PRODUCERS

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