Engineered Systems - June 2008 - (Page 81)

Glossary Here are some common abbreviations and terms found in the pages of Engineered Systems. A 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 E EMS – energy management system EPA – U.S. Environmental Protection Agency ERV – energy recovery ventilator P PFPT – prefunctional performance test PM – preventive maintenance PID – proportional, integral, derivative F fpm – feet per minute FPT – functional performance test R rh – relative humidity RFP – request for proposal RFS – request for submittal ROI – return on investment RO – reverse osmosis RTD – resistance temperature detector G gpm – gallons per minute B 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 H HEPA – high-efficiency particulate air HTML – hypertext markup language HTTP – hypertext transfer protocol HWR – hot water return HWS – hot water supply S SA – supply air scfm – standard cubic feet per minute T TAB – testing and balancing TES – thermal energy storage I IAQ – indoor air quality IS – information systems IT – information technology C 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 U UL – Underwriter's Laboratory USGBC – U.S. Green Building Council UV – ultraviolet 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 V VAV – variable-air volume VFD – variable-frequency drive VOIP – voice-over Internet protocol VSD – variable-speed drive 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 M MEC – mechanical, electrical, communication MEP – mechanical, electrical, plumbing MERV – minimum efficiency rating value X XML – extensible markup language O O&M – operations and maintenance oBIX – Open Building Information Exchange OEM – original equipment manufacturer OA – outside air R owner s pro OPR – owner’s project requirements W WAN – wide area network wb – wetbulb wc – water column wg – water gauge Take the HVAC CHALLENGE ™ June solution from page 18. Air Cooling and Dehumidifying Coils It’s what your boiler would choose Visit www.topog-e.com to learn more about the world’s most popular molded rubber handhole and manway gaskets. Contact us to receive FREE: ● STEAM TEMPERATURE SLIDE RULE ● TECHNICAL SPECIFICATION AND USAGE GUIDE ● SAMPLE GASKET ● CONTACT DETAILS FOR YOUR LOCAL DISTRIBUTOR For further information and a quotation: 1224 North Utica . Tulsa . Oklahoma 74110 (800) 587 7123 . tel 918 587 6649 fax 918 587 6961 sales@topog-e.com . www.topog-e.com Input 18 at www.esmagazine.com/instantproductinfo w w w. esmag a zine . c o m ESM03071Topog-E.indd 1 81 2/19/07 10:39:02 AM http://www.topog-e.com http://www.topog-e.com http://www.topog-e.com http://www.esmagazine.com/instantproductinfo http://www.esmagazine.com

Table of Contents Feed for the Digital Edition of Engineered Systems - June 2008

Engineered Systems - June 2008 Contents Editor’s Note Letters To The Editor Back2Basics HVAC Challenge Case In Point Commissioning Efficiency Incentives HydroTech Building Automation Energy Wiz HVACR Designer Tips Notre Dame Tackles the Heat State Of The Arts Time For A Transplant? Project Delivery: What Can IPD Do For You? Issues & Events Computers & Software Products Application Checklist Glossary Classifieds Advertiser Index Tomorrow’s Engineer

Engineered Systems - June 2008

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