This is rather baffling to me. What exactly is it doing to ‘condition’ the air? What does cooling the air have anything to do with conditioning it? and how is that different from heating the air?
We call a device that heats up a room a heater- this makes sense. Something that heats.
But a device to cool a room is called an air conditioner. We have the word ‘cooler’ but instead of giving it a logical use we decided to use the word to mean an insulated box to put ice and beverages in. I fail to see how ‘conditioned’ has any connotations to ‘cool/cold’. When I walk outside at 7 AM, I don’t say, “Boy, it sure is a conditioned morning today!”
All I can say is, blue for cold, red for warm. If my car’s console has taught me anything, its that