I have two of these units. They and all the electrical panels/controls/pumps were in working condition and maintained well. The plant closed approximately 10 years ago and a company was brought in to take them offline. They are located just east of Knoxville, TN, three miles from interstate 40. I know nothing about chillers but will do my best to answer your questions.There are dozens of control/electrical boxes with each unit. The item "Trane Water Cooled Centravac Chiller With All Panels Accessories" is in sale since Friday, April 15, 2016. This item is in the category "Business & Industrial\HVAC\Other HVAC". The seller is "mdi19772013" and is located in Albany, Kentucky. This item can't be shipped, the buyer must pick up the item.