Sorry I was confused when you said “if not for the heat then to at least remove the moisture”. When your insulation is being used to keep heat out, your heat ex

Sorry I was confused when you said “if not for the heat then to at least remove the moisture”. When your insulation is being used to keep heat out, your heat exchanger would operate in reverse to use extract air to cool incoming air, some MVHR units have optional precooling of incoming air. I expect a modern standard AC unit will be doing some cold recovery as well to improve efficiency. But ideally a fabric first approach will keep a lot of heat out when combined with external blinds and brise soliel to keep high angle summer sun out.