Quote Originally Posted by ssmoore View Post
I called Miller several times and was told the issue with the coolmate version was getting it to transform any of the various voltages as well as 1 or 3 phase power and make it small enough to fit into the 280 case without blocking all the air flow. I decided I wouldn't wait for the coolmate version as I felt that non coolmate version would have better airflow regardless and its not that big of a deal for me to plug it into the wall
So it does sound very much like there is an aux inverter board inside the water cooled version of the Dyn 280 to provide the 120vac for the coolmate..

wish one of the TECHNICAL folks at Miller could clarify and shed more light on this.....

sounds more like a "FIX" rather than a component that was planned for and integrated into the overall design from the beginning..