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Control for heating/cooling heat pump with radiant zones and set point air handler?
I am hoping to get some advice on what controller I should use for an Allerton redo as in, eliminating the Allerton because this is merely a one family home that wants some control over their climate situation. It is a Passive house with heating/ cooling via solar thermal and/or heat pump through a 2 coil tank. 4 radiant zones and a fan coil that kicks on when demands are high. Plus, I would like 2 way communication through mod bus or bac net. Maybe Tekmar 557? Anyone ever had a situation like this or any hits or misses I should know about?