How does an air conditioner cool down a room?
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In very simple terms, you have some medium that is in liquid form but gasous at room temperature.
In thermodynamics, when a medium changes it’s phase from liquid to gas, it needs energy to do that. This energy comes from the heat of the room. So by changing to a gas it removes thermal energy from it’s surroundings.
A pump then moves the gas to the unti outside. There the reverse is happening. A compressor puts pressure on the gas and turns it to a liquid agsin. This releases heat, which is then blown out through the big fans on the unit.
The pump transports the liquid back inside where it all starts over again.
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