I'm researching a new hvac system to replace a 14 year old Carrier Weathermate, and I'm leaning toward a Carrier Infinity. I'm in Charleston, SC with high humidity, and the Infinity humidity controls are an appealing feature. The model I've been quoted on is the ANA7, which is a two stage reciprocating model, but I've read that in general a scroll compressor usually has fewer problems over the long term. The next model up is the ANA1, which is a two stage scroll compressor, but does anyone know when it should be available? I don't need to change anything immediately, but I would like to get it changed out before it starts getting hot next season. I'll need a 4 ton unit. Does anyone know if these will be available by Spring? Thanks.