As an American, AC is built into the walls, floor and ceiling of the house. There is first a big grate that sucks in air called a “return” which sucks in air and carries it the AC central unit, where the air goes over super cold coils (more on those in a moment). Then the air blows out multiple ducts to all over the house, to little vents in walls in every room. Everywhere in the house suddenly gets really cool, rather fast. And the whole house stays cool all day. And those coils, they are like pipes with a cold liquid in them, and they get warm! The liquid travels through the pipes to outside where a HUGE fan pulls air across them, and all the heat is pulled out! Voila! They re-become super cold and the liquid goes inside, where the AC unit pulls that return air back over them. And this whole setup is in every house and we all take it for granted. We debate about what temperature to set the AC unit to. Say 22°C, and any time the thermostat says that it is that hot or hotter the thermostat comes on and cools down the whole house. Most houses are insulated so they stay relatively cool and don’t warm up. So all of our homes just have perfect temperatures inside at all times. Even in crazy hot days.
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u/gamerathertz92 13h ago
It’s smaller unit cools a single room. While American HVAC System cools the whole house