The
- Design of a new central system water-source heat pump loop for the floors, including removal of an existing cooling tower and supporting steel structure on the 12th floor roof and the installation of a new 1000-ton cooling tower on new steel framing. New mechanical systems have been designed on the 11th floor, including condenser water pumps, plate-and-frame heat exchangers, variable speed heat pump loop pumps and piping distributed to the floors.
- Design of a new hot water fin tube radiation heating system, which involved removal of all existing steam heating systems on the floors, installation of new electric hot water generators on the 11th floor and new hot water heating pumps, piping and perimeter fin tube to the floors. All mechanical equipment on the 11th floor has been installed on raised structural support framing with spring-type inertia base equipment pads because of the limited floor loading capacity of the floor and to reduce vibration transmission into the existing structure.
- New ventilation systems were incorporated into the building by installing 100% outside air and relief air handling units on the 14th floor of the building, which previously housed large sprinkler and domestic water gravity storage tanks. The air handling units have been carefully designed and are sectionalized to permit rigging from
- Ventilation and relief air risers have been provided from the units through central utility shafts for tenant connection
- Design of new domestic water risers, sanitary/vent risers and condensate wet column risers in discrete locations for tenant connection.
- Design of new energy management and tenant electrical metering systems.
- Additional busduct power distribution was designed for the new tenant floors.
- Fire alarm, telecommunication and lighting control systems were extended to new tenant floor.
- Fire alarm, telecommunication and lighting control systems were extended to new tenant floor.
- This project has been submitted to the USGBC for LEED Gold rating under Existing Building Core and Shell.
