Specifications include, but are not limited to: The Massachusetts Convention Center Authority is seeking written proposals for the Hynes Air Handling Units (AHUs) and Switchgears. MCCA has conducted an assessment of the existing AHUs, current control systems, and existing Electrical Switchboard infrastructure, and has determined that the best approach to conducting the upgrades is through a phased approach. The proposed 9-phased approach will be to replace internal parts of the AHUs and the current control systems, as well as completely replace the switchboards, starting in June 2024 through March 2029. Due to current event obligations, the Authority has identified available periods with no events and full building available for construction, which will be phased. The MCCA will use the CM at Risk, M.G.L. c. 149A for this procurement. The facility has a total of 27 Air Handler Units (AHUs) serving all major spaces in the building which are reaching the end of their useful life. In addition, the facility has two transformer vaults, serving a total of 11 switchboards which are ~35 years old with replacement parts no longer manufactured. The estimated cost is $35,000,000.