I have an opportunity to purchase a surplus but new 3 ton central AC (heat pump) system for my home at an attractive price but it has a three phase compressor motor and I have single phase 220V service into my home. As I understand my options, I could replace the motor with a single phase unit or install a phase converter to convert my single phase service to three phase power. I assume that there are advantages to using three phase power but are they lost if I have to go through a converter? If I decide to buy a phase converter, how do I size it? The plate on the unit does not show a HP rating for the compressor motor but it has an RLA of 10.4 and an LRA of 65.5 at 208V. If I decide to go with a conversion to a single phase motor, what size do I need? If I decide to go with a phase converter, should I go for a rotary or digital converter (or are there other options)?