AC4ME asked (in another thread),
>>Can I ask a different question about the Thermastor product?
>>How do you make it work in conjunction with the main system
>>that has dehumidification mode built in? Thanks
Let an amateur try his hand at the answer. I believe you are speaking of the Thermastor model which is not free-standing but connected to the central AC ductwork. This question could equally apply to any of the other brands of central dehumidification.
I believe it will pretty much operate independently of the central AC dehumidification function, neither will interfere with the other but each will lessen the work the other is asked to do. Probably with typical settings the dehumidifier will do most of the work and the central AC will seldom be called for reasons other than temperature control. Of course during mild humid weather, you will get good humidity reduction with this equipment, something you cannot do without overcooling if you rely on the AC alone.
The downside of course is you have to pay for a pretty fancy dehumidifier in addition to your central AC. But you already know that<g>.
If any of the real board experts can add to what I said, or correct me, that will simply make things more interesting.
Hope this helps -- C44