I guess the question is what one of the three would be the most effienct way to make this system. Being that I will have a decent size buffer tank does it really make sense to have a variable speed compressor? Obviously with it being coupled to solar it's the best choice in the long run. But will it be worth the extra cost and control setup.? I guess the way I look at it is with the buffer tanks a one speed system will probably do the job just fine. But it wouldn't be nearly as cool as a solar powered three phase system
Planning the system is something I really want to do and do well. I will only have bits and pieces of time this summer between moving and planning a DIY wedding in our new back yard. But once winter time comes around I should have more free time. I suppose if I found a 3 phase water to water unit that was gator built for the right price would be nice. So if anyone runs across a 2-3 ton 3 phase unit let me know