Mitsubishi Electric U.S. Cooling & Heating Division has made enhancements to the P-Series Hyper-Heating INVERTER (H2i®) heat pump outdoor units for light commercial applications. Featuring H2i technology, the company says its H2i P-Series boasts higher efficiency and performance with improved heating capacity at very low ambient conditions. The units Hot Start process guarantees warm air flow from the start, which is critical in cold climate conditions where heating performance truly counts. Additionally, the P-Series offers multiple fan speeds, and its humidity-reducing dry mode helps to combat excess moisture in rooms.
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.