Consulting-Specifying Engineer - September 2007 - (Page 54)

Product Spotlight Engineered systems for K-12 projects BY BARBARA HORWITZ-BENNETT, Contributing Editor B H elow is a sample of products and technology solutions that help engineers build schools that are more efficient with effective design options. American School & University magazine’s “32nd Annual Official Education Construction Report” says that school construction spending is estimated to be $80 billion next year, which presents many opportunities for engineers to apply new designs and technologies. To learn more about building systems for schools, see “Back to School with New Systems, Ideas” on p.47. Control device helps keep humidity in check by providing full capacity modulation for all sizes of direct-expansion AC systems by continuously and automatically matching AC system capacity/output to changing load conditions. The device modulates the AC system’s capacity by varying refrigerant flow according to suction pressure, which changes with the temperature of air crossing the evaporator coil, as opposed to end-type controls such as thermostats and humidistats. (APR410 Control by Rawal Devices) www.rawal.com Input #1 at www.csemag. com/QuickResponse Static air-to-air heat exchanger transfers heat and H moisture from the exhaust air to the outside air. As a result, humidity is controlled and heating and cooling capacity is reduced. Utilizing new material technology, the equipment is said to require no maintenance. Heat exchanger is also designed to transfer more moisture at part-load conditions than a number of conventional products on the market. (ConsERV by Dais Analytic Corporation) aldehydes and VOCs, some of the main contaminants found in classrooms, offices, gymnasiums and cafeterias. The unit can be retrofitted into any existing system. (Purafilter OA by Purafil) www.purafil.com #4 www.conserv.com H #2 UVC kit makes retrofitting a packaged terminal air conditioning (PTAC) unit fast and easy. Kit includes a UVC emitter, power supply and the necessary hardware for retrofitting the PTAC coil. In addition to controlling mold and microbial growth, the UVC emitter saves energy and reduce A/C coil cleaning costs. (UVC Kit by Steril-Aire) www.sterilaire.com #5 H H A i r- c o o l e d s c r e w compressor chiller has its own factory-installed pump package mounted right on the chiller base. This way the hassle of installing separate external pumps and connecting them to the chiller is eliminated. In Fan coil units have dedicated outside air coils and come pre-piped from the factory for fast installation. With the air coils outside, units are suitable for classrooms that have little to no ceiling space for ductwork. (Fan coil unit by TempSpec Corporation) www.tempspec.com #3 H Filter protects classrooms from outdoor air contaminants emanating from nearby loading docks and waste disposal units outside the school. The combination particulate and chemical filter utilizes a unique media to remove gases such as hydrogen sulfide, sulfur dioxide, ozone, Control device Filter Air-cooled screw compressor chiller 54 Consulting-Specifying Engineer • SEPTEMBER, 2007 http://www.purafil.com http://www.conserv.com http://www.rawal.com http://www.tempspec.com http://www.csemag.com/QuickResponse http://www.csemag.com/QuickResponse http://www.sterilaire.com

Table of Contents Feed for the Digital Edition of Consulting-Specifying Engineer - September 2007

Contents M/E Roundtable Cover Story: Airborne Superbugs Third-Party Liability Back to School Product Spotlight Codes & Standards Professional Practices How To New Products Jobs/Cliassifieds Specifier’s Notebook Pure Power Supplement New Technologies, Same Old Transmission Problems Wireless Battery Recharging Solar Concentration Renewables Tracking System A Mighty Wind The Importance of Load Bank Testing Quality Power for Security Systems

Consulting-Specifying Engineer - September 2007

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