residential humidity control through reheat
We have a good number of posts here that have to do with residential humidity control. We have discussions about blower speed control as a mechanism for that. We have occasional posts about whole house dehumidifiers. So far, I have not seen anything to do with desiccant wheels, but was advised by a manufacturer several years ago that they are not practical for residential scale use.
In commercial and manufacturing situations, overcooling and reheating is done all the time as some of you know. I daresay that it is being done in the building I am sitting in right now. The question is, in residential situations, why can't very conventional existing mechanical cooling systems coupled to existing gas furnaces be used to overcool and then reheat to provide comfortable temperature and humidity? Is because there will be too much heating capacity that can not be effectively throttled, or some other engineering aspect. Is it just that there has not been the demand to develop proper controls?
It may not be the most efficient way to do it in a lot of areas where demand for this kind of conditioning is high. In other areas, it might be useful for the limited times where low cooling loads are concurrent with very humid conditions.
Of course, a second "condenser" could be added to the indoor air handler for reheat and that would be more energy efficient at the cost of added equipment.