John is currently a business development manager focused on utility programs and end user strategy at Danfoss. Previously, he worked as an energy and sustainability policy analyst in the office of Maryland Governor Martin O’Malley before earning an MBA from the Robert H. Smith School of Business at the University of Maryland, College Park in 2014. John lives in Baltimore with his wife, Zoey, and his son, Sam.

A building’s hydronic HVAC system is rarely just the sum of its parts. The system is comprised of chillers, boilers, pumps, VFDs, AHUs, and valves that create a loop through which water is circulated to control the building’s temperature and its occupants’ comfort.

As the HVAC market continues to expand and Variable Refrigerant Flow (VRF) technologies continue to evolve, the demand for professionals with VRF expertise will only grow. This presentation provides thorough insight into the requirements, advantages and opportunities associated with specifying VRF systems and addresses the common misconceptions professionals may encounter in the field. Additionally, the speakers will detail VRF-specific concepts including simultaneous heating and cooling as well as how VRF fits within building industry trends such as Strategic Electrification.

Engineered Systems Magazine

2019 June

Engineered Systems magazine’s June 2019 issue examines the role of HVAC systems and power in colleges and universities via the decentralization of a Missouri college’s central boiler plant, an examination of ventilation considerations in Group R-2 facilities, the steps engineers should consider when overcoming unanticipated boiler room setbacks, common calculations and considerations regarding NFPA 92, and much more.

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John Sheff

ARTICLES

The Synchronized Hydronic Loop

Engineered Systems Magazine

2019 June