Hi!

I have the following setup: Bosch gas boiler controlled by EMS-ESP with underfloor heating and multiple room thermostats.

I am currently trying to set up SAT. It works fine during normal load scenarios, however during low load (apartment is heated up, most room valves closed), the SAT climate entry toggles between "off" and "heating" multiple times per minute. As soon as it turns on, the selected flow temperature goes to 50 and the modulation of the boiler goes to 62%. After a few seconds, it turns "off" again. I assume that this is not ideal for the longevity of the boiler... See the attached screenshots that demonstrate the behavior.

I calculated the OPV as 22° as per the manual method described in another issue.

Any help is greatly appreciated!