Trane is now offering its Air-Fi™ wireless technology for building controls. The company reports that Air-Fi wireless replaces the need for wired building controls, allowing installations to be completed quickly with less disruption to occupants in existing buildings, while also providing greater reliability, simplified installation, and more flexibility as building spaces change.
Extech’s new RD300 detects all existing refrigerants used in various air-conditioning, cooling, and refrigeration systems. Designed to increase reliability in the field, the replaceable sensor tip has a built-in LED light with on/off switch to provide illumination in dimly lit areas.
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.