I've recently taken over service at a local catholic church and school. They are remodeling the caffeteria and it has three split 5 ton heat pumps that i've moved but have not started up yet. I was thinking about staging them so they could save a little money when room wasn't being used which is a bout 70% of the time. If i wanted two of them on first stage and the other on stage two could I do this by running off of one 75 or 100 va transformer or should I go about this differently. I've never staged three systems before so I want to make sure the control side won't get overloaded.