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RobsonWoese Inc engineered the chilled water plant replacement
for the HSBC Center. These chillers, which utilize environmentally
friendly R-134A refrigerant and are critical to the
conditioning of the bank's computer and data centers,
were approximately 230-ton capacity, each with 300 PSIG
working waterside pressures, because of the high rise
nature of the building. The project consisted of engineering,
scheduling and coordination so that the bank centers
would never be without cooling capacity.
The system is unique in that the bank utilizes a "strainer"
cycle, which allows the chiller's normal heat rejection
devices (i.e. evaporative fluid coolers) to be run in
the colder months, in a dry condition, to supply cool
water to the data center's air handling units instead
of running the electric motor driven chillers (chilled
water). All chillers required customized control modifications
for rapid cold start-up to ensure reliable and dependable
operation.
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