I need to replace my R-22 25 year old Trane High Efficency condensor. My furnace and coil are 6 years old and are Carrier. I am planning to go with a Carrier 4 Ton R-410 13 Seer Condensor unit, so it will all be Carrier.
My house is a single story, 2200 sq ft and is located in Dallas, Texas area.
I just had all my duct work redone and had a new 14" return air vent added...previously only had 1 18" return vent.
Is it advisable to replace the existing slab coil with an "A" or "N" coil? Since the existing coil ran with R-22, it seems like I have heard that there may be some difference in the refrigerant oils that could cause problems once a new R-410 condensor is installed.
What can I expect to pay for the noted condensor (and the "A" of "N" evaporator coil)?