Thanks for your experience (BTW - I can’t see the jpeg - maybe the link was edited so it doesn’t act as a like anymore, just text). Your experience kind of verifies some of the guidance @MaheshAtSense gives on detecting AC units.
Unless you delete the device, the old AC model hangs out associated with your house, and similar looking on-signatures might trigger the old model instead of encouraging Sense to come up with a new model. I replaced my AC units but kept the old device around. Seems like it is confusing Sense a bit.