We just added a tigmate 3 to and old syncrowave 250 at work. I was busy with another project when it came in and someone else installed it and hooked everything up. Yesterday was the first time I have tigged anything since. Well in a hurry and getting late in the day I flipped the welder power on, started to weld and burnt a hole in the hose. Everywere I have ever welded with a tig cooler on the welder, the cooler was left on and pluged into the switched outlet on the welder. The 250 has a switched outlet on it and the cooler is pluged into it. I have checked all the manuals and cannot find anything saying you can leave the cooler power on or not to. Which way should it be done?