By-pass condenser for Hi Freq add-on box?

[Alan]

Manual on my Lincoln 500 amp HI-Freq calls for installing a by-pass condenser when used with a transformer welder. The kit came with the box, I didn't acquire the welder. Can an off the shelf condenser (or additional components) be sized to this 500 amp unit?

I didn't install this condenser the first time and something fried. Was told by tech at that time you need to down rate the welder when running AC with Hi-freq, he didn't mention anything about the lack of this by-pass condenser.

Any ideas?

Thanks,

Alan