What's the difference in a Carrier 3 ton evaporator coil model CNRVP3617 and model CARVP3614ATA?

Question

I received 2 different quotes to replace my 3 ton furnace and evaporator coil, and I noticed the furnace models were the same on each quote, but the carrier evaporator coil models were slightly different--wondering if one is better than other? Thanks!

Answer 1

The difference is the width.

The first one is 17" wide cased coil R-22 refrigerant and the other is 14" wide uncased coil R-22 refrigerant.

The smaller width uncased must be a mistake. It needs or should match the width of the furnace.

Answer 2

From what i knoiw about the carrier and bryant model numbers the first letter is for Carrier MFG, the 2nd is the shape of the coil either and A or N, the VP I believe is for the expantion device and VP is a valve piston I think, the 36 is for 36,000 (3 tons ) of cooling and the 17 is 17" wide and 14 is 14" wide one of these will fit a 17" wide gas furnace and the other will fit a 14" wide gas furnace, the ATA may be tin plated but Im not up on thet aspect of the model number. Ask the bidder to break it down for you and if they cant ask them when they can get an answer back to you. If they shift around and dont want to provide you with these answers this kind of gives you the expectation of the kind of service you can expect. I could find out for you but the supplier is closed at this time.

Also seems a few months ago the warranty was differant for Tin plated vs Non tin plated coils. I dont know if there is still a differant warranty on them at this time or not.

Also just because the furnace may be bigger (usually 17" wide on 3 ton) the 14" coil can be "blanked off externally and be made to work fine.

Also I assume your going with R22? If these guys didnt bother to tell you about R410A - PURON - Ask them why not. These systems are more efficient and the Refrigerant is allready in the $20/lb range here in Oklahoma and the R22 is around $15 but climbing and wont be made after 2010.