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18. Curious

How does an AC unit get "jumpered" to dehumidify?

ACs removed humidity because the evaporator coil is cold and it sweats, the sweat runs down the coil and into a pan which then drains the water to either an interior drain line or to the outside. Dehumidifiers work the same way, there is a coil and it sweats and the humidity, on cheap ones, drains into a tank that is emptied.

How can it not dehumidify?

I am EPA certified to handle refrigerants and I can not find anything, nor have I heard anything, about SEER rating being changed under the current administration.

The last things that changed is usually called SEER2, which was done in 2023, and t2024, under the last administration and it has nothing to do with how it is calculated which remains BTU/Watt hours. The last changes simply increased the minimum SEER rating that manufactures can produce. and what licensed HVAC contractor can install and under what circumstances.

ACs do not make cold air, they never have, neither does your refrigerator. They move heat, that is all. Refrigerants; ammonia, carbon dioxide, isobutane, and synthetic fluids, such as chlorofluorocarbons move heat through evaporation or condensation, giving you an condensing unit, outside, and a evaporator, inside.

They all work the same, and they all do the same thing.

Very curious how you came across with this statement, am I missing something?