Mission Critical/Data Centers

This project involved a complete turnkey design and installation of four (4) new dual coil DX/CHW CRAC units to provide a redundant B side cooling solution to support the data center on a catastrophic failure of the chilled water system. It also included installation of a new equipment door to facilitate rigging of new CRAC units into the data center, a new security fence to incorporate the existing generator, and new condensers to provide secure access to the heat rejection equipment. The design incorporated the evaluation of single points of failure for electrical feeds to the new equipment. We provided 100% design and documentation for installation of new equipment and permits, procured new equipment, and provided access floor modifications as required to accommodate new CRAC units. On the mechanical design side, we provided new refrigerant piping for each unit, and new condensate piping and modifications to chilled water valves. We also handled construction administration services, assisting with coordination of the schedule for equipment installation, testing, and commissioning, and reviewed as-built documentation from contractor mark-ups and development of record condition drawings.

The scope of this project involved the design of the “B” side UPS distribution to provide a maximum capacity of 180kW of redundant UPS power. We performed a site survey to identify existing conditions, locate and detail equipment locations, and survey conduit runs. Our team provided single line diagrams and floor plans for installation of equipment, documented the replacement of four existing circuit breakers, and provided wiring details to connect new equipment to the existing site monitoring system. In addition, we provided mechanical and electrical engineering for a 3 Ton Liebert Mini-mate to support the base building electrical distribution closet, including an indoor air handler and outdoor condensing unit.

Our client planned the construction for a new Technical Operations Center (TOC) as part of an expansion in one of their sectors. The TOC supports broadcasting equipment, including server and equipment racks that support their television show. Our MEP team coordinated with the broadcast designer for all physical, power, and cooling requirements, and designed the cable tray systems to support the new structured cable plant. The TOC consisted of the following areas: two (2) fully fit out rooms with raised floors (for low voltage cable only), cable tray, in-row cooling units, static transfer switches, and FDCs in predetermined designed locations. The design included one (1) TOC room for future fit out and one (1) electrical room for future fit out. Core and shell design for these rooms was included. Each of the two (2) rooms was a minimum of 3,000 square feet. The additional electrical rooms totaled approximately 2,500 square feet designed to house two (2) new electrical switchboards for the TOC services and a future Sector H expansion of approximately 30,000 square feet. All of the aforementioned rooms for the TOC and electrical room were located on the first floor. A second floor structural mezzanine was also designed and constructed above the new TOC. The MEP design included the power requirements for normal, UPS, and emergency power to accommodate the sector expansion (for both first and second floors) as the infrastructure for the TOC was designed. This project also included structural design to allow the client the option to raise the roof over this newly created area in the future. All design, bidding, and construction administration services were included, and we also provided a computational fluid dynamics model for the TOC to assist with the evaluation of hot aisle versus cold aisle containment.

We provided one (1) Liebert CRV Air Cooled Precision Cooling System and one (1) Liebert 115 Ambient Direct Drive Air Cooled Condenser (ACC), as well as startup and testing. Demolition of the existing piping was necessary to accommodate the new installation. We performed the electrical installation of the new CRV and ACC in accordance with all codes and standards, and provided new feeder breakers in the existing panelboards to feed the new CRV and ACC. In addition, we provided new piping runs for the ACC to the roof, and programming and startup of the new unit.