Hi, Eaton bought Powerware in 2004 and assumed the service for Best Power products. Here is the URL for legacy UPS products like the Unity/I: http://powerquality.eaton.com/Products-services/Legacy/Legacy-Products.asp You'll need to scroll down to the very end of the UPS section. In regards to parts and service, here is the contact info:
Toll Free: 1 800 843 9433
International: +1 919 871 1800
E-mail:
[email protected]