The Rocky Mountain Regional VA Medical Center currently uses shell-and-tube heat exchangers with lead/lag redundancy, requiring two heat exchangers for pre-heat and re-heat. Failures have caused gasket leaks, leaving only one working heat exchanger and reducing redundancy and service sustainability during outages. The contractor must provide all installation materials, including gaskets, bolting, supports, and appurtenances. After installation, the contractor must confirm valve orientation, clearance, accessibility, and operability. The contractor must also perform leak or pressure testing of the affected piping section per site requirements before returning the system to service.