making the room cooler do you....

I turn the ac down in my central air in the house to make it cooler. However I turn up the air in the car to make it cooler.

That’s just the way it is.

c. Turn down the thermostat.

Wife of a former HVAC person checking in…

I had to be broken in (at least, by the industry standards here in east and central Texas) about this, lo some twenty-odd years ago, but according to him, it’s “turn it down” if you want it colder. Gah. I’d be shot if I did the reverse anymore.

Um – I turn ON the air conditioner.

For me, I use up or down to mean the direction I want the temperature to go, but I know that this is ambiguous. Usually I try to fix this by specifying “turn the thermostat up” or something like that.

Systems may vary somewhat, but in general you are not changing the work done/power consumed or the rate at which it cools. You are only changing how long it continues running. Most heating and cooling systems aren’t on some kind of “throttle” but just work at full capacity until they reach the target temperature.

Yes, but that wasn’t the question.

We call it wind. As in, “Can you make more wind?” Strange I know. But we have all these odd metaphors for common things. AC is one of them.

I voted “turn down the air conditioner”, but what I really mean is I turn down the thermostat.

Turn the air con up, ie crank it up to make it colder, turn that baby all the way up to blizzard (inset tim the tool man grunting)