Interesting. I just toured a fresh air modular datacenter. They raise temps to remove humidity. I suppose that's different than condensation, as yes, iced drinks form condensation quick in warmer air in my experience.
If air has a very high *relative* humidity then raising its temperature makes it less likely to condense on things, but only as long as the things are warmed up too. There is only scope for that if the original air temperature is not too high. Otherwise, the warm air has to be run through an air conditioner to dehumidify it by actually removing water, and you have to keep the fresh air out of the building.
Edit: then it is fairly obvious that the cold air straight out of the air conditioner is saturated (high relative humidity) and it has to be allowed to warm a little before being allowed into electrical equipment. So you would see condensation if you ducted air conditioner output straight into a server.
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