I am a student working on my thesis, I must evaluated the robustness of a building with OS (using 2.7.0) The system is a ground heat exchanger with a heat pump (floor heating) and floor cooling with flow to flow heat exchanger. I have the following problem when I run my simulation with a maximum water flow of 0.0004m^3/s.
Water is becoming to hot by cooling and by heating to cold and I do not understand how that can be. (all pumps are set intermittent because that was a suggestion found on unmethours)
some one knows how to solve it? you can find the file here. this how the system is modelled