Hi ! If you already have a 480 v electrical system in place, you might want to keep/use it. If you ever want to consider a variable speed drive in the future for energy savings, there are standard drives available from the chiller manufacturers and others. A higher voltage VSD is available from...
Is there a simple method to determine the energy saved by raising the central plant's chilled water operating temperature ? The assumption here is that the new environment served by the building air handlers, can withstand higher (temperature and relative humidity) operating conditions.