One Maritime Plaza

The original decades-old Carrier chillers were still operating reliably at One Maritime Plaza in San Francisco when CBRE, the building management team, began a green initiative, including a plan to replace the legacy chillers with units that use environmentally sustainable R-134a refrigerant, which complies with Environmental Protection Agency (EPA) regulations phasing out ozone-depleting R-11 refrigerant. In addition, management sought the superior energy efficiency provided by contemporary chiller technologies. CBRE chose Servidyne, the Atlanta-based engineering firm, to select chillers to provide comfort cooling to the landmark 26-story office tower in downtown San Francisco.

Project Solution

Servidyne specified two Carrier AquaEdge® 19XRV chillers to provide comfort cooling to the 526,464ft2 office areas within One Maritime Plaza. The 19XRV chillers were chosen because of their high efficiency that deliver efficient energy performance during both part- and full-load operation which provides energy savings and their use of non-ozone depleting R-134a refrigerant. The new cooling system also includes a plate cooler, larger cooling towers and a building automation system (BAS) graphical interface, which resulted in a 27 percent reduction of chiller full-load electric demand. The Carrier chillers also contributed to the award of LEED®¹ Gold status to One Maritime Plaza.

¹LEED is a registered trademark of the U.S. Green Building Council