This might sound petty. But it’s just turn me off when company and sometimes people refer evaporative cooler as air conditioner. While yes, both device usage is to cool the temperature down, but they both achieve it with entirely different mean. Evaporative Cooler basically use moisture pad, the pad absorb the heat with both cooling and moisturizing the air which being recirculating with the fan, which similar effect when you are near waterfall.
One of the hand, air conditioner work by …. Well to be honest it’s very complex system, I barely understand it. but all you need to know, there two important parts evaporator (the thing that inside the room) and condenser (the thing that outside the room). The refrigerant in liquid and gas state move through a copper coil into evaporator which absorb all of the heat from the room turn all of them into gas state. Then it move again through copper coil into compressor that well, compress the refrigerant turn it into liquid state compressing the refrigerant will increase the temperature due to decreasing of the volume.
Then it move into the condenser which release the heat into the surrounding air (outside of the room), it then again move into expansion valve, in which restricting the flow of refrigerant turn it into gas liquid state, since the temperature of the gas liquid state lower then liquid state refrigerant, it natural move into the valve that turn it into gas and then it back again into evaporator which the circle repeat. Confused? Don’t worry, I barely even understand the stuff and that’s the best way I can describe it.
And this why? calling Evaporative Cooler as “air conditioner” is turn me off. They very different to each other. It’s like calling Microwave Oven as Stove, yes they both cool the food. But they do it the different way.