Specifications include, but are not limited to: Dakota County’s Western Service Center has been servicing the residents of western Dakota County since 1989. The Western Service Center currently has one Trane 400 ton water-cooled centrifugal chiller to serve the building; the unit was installed when the building was originally built in 1989. Over the years actual load is closer to 200 tons. With only one unit, there is no redundant capacity in this system. This lack of redundancy makes the building susceptible to a total shutdown of the cooling system should the main chiller fail. Also, a matching Baltimore single cell cross flow cooling tower also installed in 1989, is a potential pain point for the HVAC system as it is aging, and many components are past their useful life. The cooling tower will require a needs assessment to be completed to identify the failing components and bidding documents for that rebuild scope. As mentioned above, this project will alleviate two pain point in the Western Service Center’s HVAC system. The selected design team will evaluate how to add redundancy to the existing cooling system and determine what parts of the existing cooling tower need to be replaced. The team will then create bidding documents for this work and oversee the construction phase through closeout. Since the building will need to be cooled during the summer, constriction will need to be sequenced to allow full use of the cooling system in the warmer months.
