Main Question or Discussion Point
I'm trying to understand the concept of free cooling. I've found that this is the production of chilled water without the use of chillers, i.e. the use of cool air. But what I don't get is that if the temperature outside is low, isn't the need for cooling pretty much not there? I only see this to be useful for rooms which have a major internal heat production, like server rooms and such. Is this correct?