Modify pump speed while heater running to maintain temp differential

[kbarber79]

Good afternoon,

I have a separate circuit setup for when the Solar is running, it's slightly higher speed to account for the extra pipe.
I installed a second water sensor onto the return pipe from the heater, which is properly reporting as solarSensor2.

When I'm home and watching the values of the output, I adjust the RPM settings of my solar circuit up or down, trying to keep the temp differential right around 3 degrees.

I created a binding on the 'temps' event to watch for changes every 2 minutes.
I am able to select the pump object and see the circuits, but all the examples that Gemini has suggested, don't seem to exist (be accessible).

Ideally, I would love to have the Solar circuit always start at 1300rpm, and then have this binding adjust the pump RPM until the Solar circuit turns off.

Any advice on how do to that would be appreciated.

-Keith-

[tagyoureit]

Ya, Gemini won't have a clue how to do this. Try the attached. Not validated, but should get you close. Check the readme for setup instructions.

README_SOLAR_DIFFERENTIAL.md
solarDifferentialPumpControl.json