Electrical question?

[hemiblas]

I know you can tie the grounds together, because a ground is a ground is a ground and they are all happy being tied together. I'm not sure you can tie the 2 output neutrals together though as they serve as the return path for the hot leg. Maybe just get a neutral from the panel directly and use two transformers to step down each 220v leg?

On second thought if the neutrals are fed from different phases then they can be shared, I'm just not sure what would happen since they are on the output of a transformer.