Nidec Motor Corporation (NMC) has launched the U.S. MOTORS® brand 3-10 hp electronically commutated (EC) motor with an IE4 (Super Premium efficiency) rating integrated with a tuned VFD. The product is available for variable torque pumps, fans, blowers, farm vents, and hydronic pumps. This motor is a member of the ACCU-SERIES line of variable speed products.
Mammoth has launched a new water source heat pump line, HydroBank MS, designed specifically for developer, new construction, and replacement markets where compact design and a low first cost are primary considerations. The company says its new HydroBank MS design is characterized by its small cabinet size and by features that make it easy to install and service.
Bryant Heating & Cooling Systems has released its Legacy Line Energy Recovery Ventilator, which the company says provides application flexibility through direct mounting to furnaces or ductwork without requiring a separate wall control.
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.