This is vaguely interesting.
It’s night time and most of the TRVs have programs that take them to low temperatures. I’m a bit chilly in my office and the schedule is keeping the heat pump off.
I manually set a low flow temp and turned it on.
The control algorithm picked a higher flow temp (because it’s warmish outside) and away we went.
It’s a pretty short run time which fits with our expectation that there is less water volume to work with. We can see the flow temp ramped up quite quickly.
Here’s a similar run starting from the same sort of temperatures in the daytime when more TRVs were fully open.
Hopefully this is interesting to someone. I’m finding the app for exploring experiments to be quite useful.