Consulting-Specifying Engineer - September 2007 - (Page 55)

Product Spotlight Condensing boilers Constant-volume rooftop unit Building automation system Building management system addition to easy installation and a smaller footprint, the chiller’s aerodynamic fan blades and single rotor screw compressor enables quiet operation, making it a great fit for schools. (Model AGS air-cooled screw compressor chiller by McQuay) www.mcquay.com #6 H Condensing boilers offer energy-efficiency and reliability. Available in six different sizes with modulating capabilities from 6:1 to 23:1, depending on the unit, to maximize seasonal operating efficiency, boilers operate at less than 50 dBz, so they can be located next to classrooms, if necessary. By incorporating several independent 151,500 BTU/h, preassembled thermal modules housed in a common enclosure, the system is designed to maintain its load if one module is in need of maintenance or repair. Each module has its own dedicated controller with a combustion safeguard, variable-speed fan, modulating gas valve, electronic ignition, modulating burner, flow temperature sensor, thermostat and heat exchanger. (Modulex line of condensing boilers by AERCO) www.aerco.com #7 H Constant-volume rooftop unit now available with the EnergyX system. EnergyX offers a fully factory-integrated and certified energy recovery system that utilizes exhaust air to exchange energy with fresh intake air. This preconditioning of air allows higher operating efficiencies and increased comfort control and IAQ while reducing the cooling and heating capacity requirements of the Centurion leading to installation cost savings. The combined efficiency by ARI Guideline V can be higher than 19.0. (Centurion EnergyX by Carrier) www.carrier.com #8 A A Building automation system is designed to connect building systems on an enterprise, or school district level. With simple, web-based access to multiple buildings, facility staff can regularly monitor building systems and review the software’s daily operations such as reporting on status of buildings, systems and equipment; scheduling by room, building or enterprise; data collection, analysis and troubleshooting; and alarm management. (Tracer ES Enterprise Solutions by Trane) www.trane.com #9 E Standby generators operate on natural gas or liquid propane and are available in sizes between 20 kW and 150 kW. The natural gas gensets offer quieter operation, reduced emissions and unlimited fuel supply with no storage, making them ideal for school settings, especially those with emergency power code requirements due to their designation as an emergency shelter. (QT Series by Generac) www.generac.com #11 E Automatic transfer switches are single- or dualoperator, available in 2-, 3- or 4-pole configurations, for emergency power systems in 600-volt class applications. ATS have positive mechanical interlocking and provide high-speed, quick-break, quick-make preloaded transfer by means of a simple electrical operator, backed up by a safe manual operator. The switches offer an effective design solution for K-12 institutions with backup power requirements. (Models RMT and RMTD automatic transfer switches by Russelelectric) www.russelectric.com #12 E H Air-conditioned cabinet, with integrated (Continued on page 57) Upgraded building management system A offers greater interoperability, reliability and ease-ofuse. The system is certified for interoperability with all BACnet devices, regardless of their manufacturers, and the system’s network-control engine combines an IP-based supervisory controller with an adaptive, self-tuning DDC controller and a Web-based user interface. Improved field equipment controllers have optional integrated displays for monitoring and control in the field. (Metasys 3.0 by Johnson Controls) www.johnsoncontrols. com #10 Controls software ties a school’s fire, communication, security and building control systems together, making building operation much more efficient and organized. Possible configurations include programming the school’s fire control panel to communicate directly with the paging speakers and phone system; reducing hallway lighting levels when classes are in session and/or reducing heating or cooling once the building is no longer hosting school activities. (BuildingConnect by Siemens) www.sbt.siemens.com/bau/ inquiry Consulting-Specifying Engineer • SEPTEMBER, 2007 55 http://www.mcquay.com http://www.generac.com http://www.trane.com http://www.carrier.com http://www.russelectric.com http://www.sbt.siemens.com/bau/inquiry http://www.johnsoncontrols.com http://www.aerco.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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