How do I set "Max Chamber Temperature" on Core One, and make it stick?

I'm using Orca, but I'm not certain that's relevant. When I start prints the C1 always want to cool the chamber if it passes 20c. After I start a print, after it finishes the initialization parade, I can use the physical machine controls to set Tune > Max Chamber Temperature > 55c, but so far I can't find any search results for gcode to select that, or seeing a printer setting to store that, or finding a slicer setting just does "don't care what start temp is, but only lower it if it passes X". The only customized startup gcode I have is commenting out the heat soak G29 G.

Have I just missed something obvious in my passes through settings? I don't want to force heat the chamber to X, I just want to not care unless it passes X.