There isn't much information about the software since no website speaks of it nor there are any downloads available on the official website. However, based on the little information I could find, it seems that Tracer TU Balancing Tool is some sort of a configuration app that is used along with a device from Trane to obtain various data and information.
For a proper response to this inquiry, get in touch with the developers through the following email: CDSHelp@trane.com