Equinix is the world’s largest IBX data center and colocation provider. The Equinix AT4 design project was an upgrade to the existing UPS and cooling equipment. The upgrade also includes transforming the electrical distribution topologies to provide enhanced reliability and capacity to meet the demands of a modern data center. Vanderweil provided the MEP/FP engineering design services.

The second-floor IT load feeds from two main distribution systems. The first system is composed of a 1200 kW traditional centralized bypass N+N dual bus topology. The upgraded system relocated to the basement in order to make room for additional racks. The other system, already located in the basement, is an isolated redundant topology composed of end-of-life 500 kVA 9315 UPS and a non-automatic open transition throw-over scheme. Both systems feature a make-before-break fully automatic block redundant catcher system composed of state-of-the-art Eaton 9395 UPS and static switches providing dual paths of power to the IT loads.

Additionally, two 400-ton chillers were upgraded to two 600-ton chillers, providing an N+2 redundant plant. 72x 30-ton units with 28x 60-ton Liebert units were replaced with the I-COM controls for energy management. The intent was to provide capacity for future tenants.