MEMSIC Inc. has created its MEMS based pressure sensor designed for VAV damper control as well as HVC applications such as room pressure monitoring, fume hood controls, furnace press switches, heat recovery systems, burner control, fan control, filter monitoring, and many others.
Larson Electronics has released the 15 KVA power distribution panel system that converts three-phase 480 volts AC to single-phase 120 volts AC. The MGS-15KVA-120X8O-2X208Y power distribution system is designed to provide a safe and effective way for operators in industrial settings to tap into and utilize power sources independently of the work area. This unit is designed to operate with 480 VAC which then steps down to 120 VAC single phase and 208Y three phase.
Larson Electronics has released a Class 1 Division 1 explosion proof fan/blower designed for use on a 220 volts AC electrical power system. This explosion proof blower meets UL and ATEX standards for hazardous locations and provides high 4,450+ cfm output for effective airflow in larger spaces.
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.