The heating system and AC system are in fact separate systems. You do not have to have both. The both of them run off of 120V AC so you do not have to have two inverters. The inverter that we sell can power both systems as well as other electronics throughout your car.
We understand how a standard car’s hearing and cooling system works. The heat is a byproduct from the engine that is circulated by means of antifreeze through the heating core within your dash in your car. The coolant running through the compressor and the condenser circulates through the evaporator in your dash. As a user you can switch from both hot and cold air (or a combination of the two for temperatures in between). The amount of the air is dependent on the fan speed which is determined by user.
You mentioned that “You need an integrated system that can both heat and cool in one unit at the same time”, essentially that is what is happening here. Although you DO NOT need both the heating and cooling system. If you have one without the other you will simply only be able to either cool or heat your cabin.
In terms of clearing out moisture in the air you simply would do exactly like you said, switch to cold air for a bit then back to hot. In the high end cars this is all controlled automatically through a computer. You set the temperature and the computer controls the correct ratio of hot/cold air and at what speed to run the fans.
We have installed these systems in multiple cars and haven’t had any issues with any of the systems. Our customers will assure you that this is more than an “acceptable” solution. Some customers (in warmer climates such as Arizona) only option to install the AC system, where others have chosen only to install the heating system. A majority of customers do in fact install both systems. If you look at our website and the manuals for these components I’m sure you will see that this is the most appropriate way to achieve heating and cooling within your EV. We are working on getting pictures and videos out on the internet, I will post some videos of both systems working soon.
Electric Blue Motors