This contract includes the HVAC scope of work only. The electrical, GC, plumbing will be by others. Mechanical contractor to take the lead in the coordination with the other trades. This project is in fully occupied facilities. Building 101, 701 & 702 – scope per building - (4) air handling units, four (4) hot water heating distribution pumps, cleaning of the interiors of ductwork, the existing humidifier will be removed, and a new carbon monoxide detection system in conformance with current building codes. Building 101 -replacement of two gas boilers, and tie-in to the existing control system. Building 701 - removal of the existing air-cooled chiller and chilled water pumps, installation of four (4) D-X condensing units, replacement of controls system Building 702 - replacement of controls system