Well it still applies. We get 100 up here too, but if you size the unit (fixed capacity) on the high side, you may end up with this very problem. This is especially an issue with "lower cost" units using an orifice/ piston instead of a TXV
I'm not sure what you're arguing. All I said was "If an AC system is sized properly, there's no reason it shouldn't easily maintain mid-70's inside when over 100 outside."
