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.
Johnson Controls has introduced its Luxaire® brand of mini-split air conditioners and heat pumps. Company officials said these recent additions to the Luxaire Acclimate™ and LX Series product lines increase the number of heating and cooling options for commercial building operators.
Johnson Controls has added ductless mini-split air conditioners and heat pumps to its York® Affinity™ Series and LX Series product lines to provide more heating and cooling options to homeowners and commercial building operators. These compact, energy-efficient units deliver cooling or heating to structures without installing air handlers and ductwork, providing a solution for buildings without ductwork or room for remodels.
The Trane® Advantage VRF™ variable refrigerant system features variable-speed compressor technology and offers customizable solutions for temperature control and occupant comfort. The new systems from Trane adopt ‘smart inverter’ compressors and feature an upgraded vapor injection system, providing improved performance over previous versions.
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.