How a structured RCx process uncovers hidden issues, improves comfort, and delivers measurable energy savings.

What Is Retro-Commissioning (RCx)? Retro-commissioning (RCx) is the systematic process of evaluating and optimizing the performance of an existing building’s systems—HVAC, controls, air distribution, hydronic systems, and supporting equipment. Unlike major capital upgrades, RCx focuses on improving what you already have. Over years of operation, buildings drift: schedules change, sensors lose calibration, economizers get overridden, […]