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This project was a co-location computer room facility to serve various tenants in hosting their business servers and networks with direct, high-security fiber optics communication links around the world. This critical environment facility features
67,000 square feet of raised floor computer room (30” high) and accommodates very high density heat gain (90-watts/sf throughout) with 24x7 coverage. The project included 48-hour backup systems,
40,000 square foot support areas and 10,000 square foot high security areas.
The mechanical systems included 2,400-tons of air-cooled chillers/pumps and (60) chilled water computer room units (nominally 50-tons each) all sized with N+1 backup. Humidity control is delivered through a centralized ventilation and humidification system with 100% redundancy. The fuel system features 60,000-gallons of underground fuel storage designed to serve (6) kVA Rotary Power units with diesel generators to accommodate the servers and (3) 2,000 kVA standby diesel generators to accommodate the mechanical equipment. The fire protection includes (6) pre-action zones with smoke detection above and below the floor to serve the critical environments. An AnaLASER HSSD system (high sensitivity smoke detection) is piped to each computer room air handler with detection. The project was extremely fast-track allowing only (6) months to both design and install the systems with a (2) month commissioning duration. The underground fuel system was the largest installed within the City of Tukwila and was preplanned and approved without loss time. The jobsite had approximately 500,000 square feet of similar facilities being built concurrently along with this project – and therefore imposing a challenge to sequence the mobilization, staging and coordination of all deliveries. McKinstry pre-fabricated most all of the piping systems to mitigate this risk. |
AboveNet Communications
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