There are many good reasons to replace aging chiller plants in the nineteen-nineties. Unfortunately, very few installations were straight-forward in execution because the designers of the origi­nal structures rarely considered the necessity of replacing these machines in the future.

For this reason, building owners and managers have to be alert to opportunities that make the installation process easier and less costly. An example of this quick thinking is the manag­er who had new basement chillers installed through the rloor of a retail tenant whose lease had just expired. Another owner slid new chillers in through the basement foundation wall next to a recently demol­ished building site.

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