E2S Warning Signals has developed a SIL 2 version of its flagship BEx range of explosion proof alarm horn sounders and Xenon strobe beacons. The company says its new IECEx and ATEX certified BEx horns and are designed and tested to ensure a 99.9% reliability rate, bringing plant safety to new levels.
Greenheck has expanded its packaged rooftop ventilation line with the addition of Model RV(E)-120, a pre-engineered system featuring increased performance capabilities for larger dedicated outdoor air systems, multi-zone VAV systems, and single-zone VAV systems.
Armstrong Fluid Technology has launched a new control product developed to improve the energy efficiency of chiller plants. Interfacing with an existing building or chiller plant automation system, the Armstrong OPTI-VISOR™ controls the key components of a chiller plant, providing the optimal operating settings for equipment such as water-cooled variable speed chillers, variable flow cooling towers, and variable speed pumps on the chilled water and tower water circuits.
Baltimore Aircoil Co., has unveiled its new and improved series 3000 Cooling Towers. The company says the towers have capacity increases of up to 16%, expanded selection flexibility, and reliable year-round operation.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.