There are at least four projects that are in various stages of development that I am aware of, it could be useful if the people who are working on their projects could describe what they would like a controller to do...
As for myself, I would like a GSHP controller that, as a very minimum requirement would:
- Provide for a startup delay of the compressor
- Monitor the output of the evaporator HX
- If evaporator HX output temp was equal to or less than 37F the compressor would shut down for a selectable period off time (10 minutes for starters) while the water pumps keep running
-AC