David Sellers, P.E., Senior Engineer, Facility Dynamics Engineering, Portland, Ore.

A Mechanical Engineer’s Perspective on Electrical System Commissioning

An unexpected power failure and the ensuing recovery can wreak havoc on a building and its systems, generating complaints, loss of environmental control, quality control problems, and occasionally, debris. But one often overlooked aspect of power systems failure is the effect on HVAC and building automation systems, and the problems that can ensue from loss of power.