Cx Associates was retained by the Town of Shelburne, VT to provide design and construction phase commissioning for the town’s 16,000 SF new Pierson Library and renovated Historic Town Center project. Commissioned systems included the heating, ventilation and air conditioning system (HVAC), domestic hot water, and lighting and lighting controls. Designed with sustainability and high-performance in mind, the building incorporates many energy efficiency features such as a roof rainwater collection, passive daylighting, and energy-efficient HVAC equipment. Designed for net-zero energy use, the new library and town center was awarded the 2020 Efficiency Vermont Best of the Best Honor Award – Large Commercial, as well as the 2020 People’s Choice Award at Efficiency Vermont’s Better Buildings by Design Conference.

Cx Associates completed construction and occupancy phase commissioning of a full renovation for the three-story, 60-plus-room Bread Loaf Inn. The renovation included winterizing the building with new mechanical equipment, an improved shell, and a commercial-grade kitchen. Our work uncovered a number of issues while the contractors were still onsite, resulting in minimized corrective costs and impact on the people and building systems.

Cx Associates provided commissioning for the renovation of the historic building that is used as Middlebury College’s president’s residence. The building has been recognized for its energy efficiency, winning Efficiency Vermont’s top award for a major renovation of a commercial building. As a result of our early involvement in the project, we were able to identify an opportunity for the engineer to modify sequences and piping to ensure the heating boiler was not damaged by missing logic. Our follow up on the issue resolved a lack of communication that could have resulted in a voided boiler warranty.

Cx Associates was retained by Champlain College to commission the college’s renovation of Roger H. Perry Hall. Built in 1859 by lawyer and diplomat Edward Phelps, it is one of only 11 houses in the South Willard Street Historic District that predates the Civil War and is an Italianate-style brick home with elements of Greek revival. The college’s plan for the building included energy-efficient climate control systems, including a geothermal pump from Perry Hall's deep wells. The building was renovated to LEED standards which recognize performance in five key areas of human and environmental health: sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality.

Cx Associates provided commissioning services for the renovation of this three-story historic mansion. The systems included in our commissioning were HVAC, domestic hot water, lighting and lighting controls. We identified a number of issues during the commissioning process, including variable refrigerant flow controls that didn’t meet specified sequences of operation, an isolation damper that was not opening properly to allow outside air into the heat recover unit, and water pooling around the roof top units. The identified issues were resolved, removing the potential for future issues.