Replacing Air Conditioner

Wavesprite wrote:
... and to the thermostat and be good to go.

In many cases A/C installed in a hybrid (because of it's size) would often be direct blow, in which case thermostat control over the unit would be part of the A/C's ceiling unit. Do you know for a fact that the A/C unit previously installed was not direct blow but instead ducted and therefore controlled by a wall mount thermostat? And if that's the case it would then only make sense to select the same model A/C that was originally installed - i.e. if the thermostat is a Coleman then chances are the A/C itself was also a Coleman unit, or DuoTherm if it's a DuoTherm thermo. Mixing one A/C brand with a thermostat intended for a different brand of A/C could introduce complications you don't need to be dealing with. Even then it wouldn't seem to make a lot of sense to continue using a simple bi-metal thermostat when a digital version would offer much tighter control over temperature variations. Given all the aforementioned I'd be inclined to install a direct blow A/C and replace the existing bi-metal thermostat with a home digital version that will control the furnace much more accurately. JMO, but if you take the time to familiarize yourselves with the details you won't have to make this project any more complicated than it needs to be. ;)