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Reading Vitodens 200W B2HA Return Temp.
Any way to read the return water temp in the coding? Ive been logging system data a few times a day since startup and noticed that the return water temp that I read on the boiler gauge I installed has been between 118 and 122 degrees which seems high to me based on boiler temps from 124-129. Not the Delta t I was expecting. But them I don't really know what to expect.
I'm wondering it the gauge is really out of calibration and just want to verify it. With return water temp being such a big deal in condensing boilers I would think it would be monitored in the system at some point. I cant find it in the service manual but it may be called something else .
Out Door Temp, Boiler Temp, Flue Temp and Common Supply Temp (LLH sensor I think) are all right up front under "information", " General".