I have an Aquarea J heat pump in a vacation home I have controlled via the App for a couple of years. Now I want to make the basic operation independent of the App. The Siemens Logo! Is used to control all pumps, switching valves, etc for heating (underfloor + Fancoils) and cooling (fancoil only). The heat pump also supplies domestic hot water. I have a buffer tank with temperature sensor and the CS-NS4P expansion card)
What I want to do should be very simple but I have searched the Panasonic documentation and the web, but with little success. I would greatly appreciate if someone could help how to wire so I can control the following from the logo:
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Signal so I can turn the Aquarea on, but only producing domestic hot water
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Signal so the heat pump heats/cools the buffer tank to the temperature I need for heating or cooling so it is ready when demand comes (assume I can use CN210 3+4 contacts for heating/cooling switch)
The deltaT on the buffer tank is a challenge since I do not pass any other temperature sensors to the heat pump.
I’m hoping to make this bulletproof without App, but it may also not be a recommended way to run a heat pump and that is the reason it is not covered (which means I probably need to go to more complex 0-10v demand logic).
I would greatly appreciate any input.