Engineered Systems - March 2009 - (Page 10)

Back 2 Basics Based on Cx-3 ATC/FPT and TAB-3 software Engineering in the Warranty Phase • The design engineer should continue to monitor the project during the warranty phase by requesting that the facility manager e-mail the system trending data to confirm basis of design compliance. • The design engineer should make a point of calling the facility manager on a design day (heating season and cooling season) to confirm system performance. • Enhance the standard office specifications to reflect today’s business tools when addressing energy management capabilities in the design phase. The design engineer needs to work closely with the facility engineer to determine what metering and control components are required for the facility engineer to efficiently and effectively do his job. The same can be said for specifying the expanding of an existing CMMS system so that planned maintenance workorders are available on day one of occupancy. • If energy simulation software is used for determining the optimum system selection and/or for life cycle analysis, this month-by-month energy consumption data should be forwarded to the facility manager for benchmarking trending data during the warranty phase of the project. This simulation exercise can be used to confirm and obtain two to ten LEED® credit points based on computer output. • Like any quality process, data collection and data analysis are the foundation of peak facility management as it relates to energy consumption, operating cost, and maximizing useful equipment service life. Using a graphical presentation to present BAS trending can be invaluable to the facility management striving to educate others who need to know what O&M is responsible for. A picture is worth a 1,000 words, and a BAS computer graph can be worth even more. • The facility engineer should have PM workorders in place and completed along with a monthly report documenting any open workorders (e.g., waiting parts). This report can help ensure the warranty phase responsibilities of the building owner are being met. BY HOWARD MCKEW, P.E., C.P.E. • Along with the system flow diagrams, the TAB engineer should also have the fan curve marked up with the design-to-actual points on the curve and also should document the 100% flow, maximum design flow, and minimum flow points on the fan curve. • Whether the project is to be LEED-certified or not, a 10-month meeting should be held between the commissioning engineer, TAB engineers, and facility group to review the commissioning process corrective action log, owner’s project requirements, basis of design, design criteria, warranty issues, trending data, and PM workorders. In addition, there should be a lessons-learned discussion for everyone’s benefit in preparation for future construction projects. Any edits to the operator handbook should also be discussed and revisions made immediately following the meeting. Log on to www.buildingsmartsoftware.com for the complete Commissioning 1-2-3 process and also refer to “HVACR Designer Tips” for the equipment startup checklist and the “Application Checklist” for the system selection scorecard. “Back2Basics” is now available electronically and in CD-ROM format! To order an individual series or the entire collection of “Back2Basics,” go to www.esmagazine.com. Back 2 Basics The Back2Basics library has grown. Series 28 — 42 are now available. Or if you are missing a few series of “Back2Basics,” copies are available by contacting Jill DeVries at BNP Media, 248-244-1726 or by e-mail at devriesj@ bnpmedia.com. You can also order “Back2Basics” at www.esmagazine.com. Series Series Series Series Series 031-037 (Tests 182-202): 001-008 (Tests 001-048): 001-014 (Tests 001-084): 001-018 (Tests 001-108):. 001-030 (Tests 001-181):. . . . . . . $69.95 . $59.95 $104.95 $129.95 $209.95 Third-Party Cx and TAB Engineering in the Warranty Phase • The commissioning team during the warranty phase for deferred seasonal FPT demonstration (e.g., heating system demonstrated in the heating season) is the same team who participated in the construction phase. Pertinent trending data will be invaluable leading up to this deferred test demonstration. Once completed, each document should be laminated and posted in the associated equipment room. • The TAB engineer will include all actual-to-design pertinent flow and pressure, pressure drop, and temperature in the TAB-3 system flow diagram when testing, adjusting, and balancing an air-handling system. Once completed, this flow diagram and TAB documentation is accepted by the design engineer should be laminated and posted in at the specific primary equipment (e.g., adjacent to equipment). Series 001-037 (Tests 001-202): . $269.95 10 En gi neer ed S y stem s March 2009 http://www.buildingsmartsoftware.com http://www.esmagazine.com http://www.esmagazine.com

Table of Contents Feed for the Digital Edition of Engineered Systems - March 2009

Engineered Systems - March 2009 Contents Editor’s Note Back2Basics Case In Point Commissioning Building Automation HVACR Designer Tips Application Checklist Teaching An Old School New Tricks Basics For Absorption Chillers A New Haven For Sustainable Schools Glossary Classifieds Advertiser Index Tomorrow’s Environment

Engineered Systems - March 2009

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