What is location?

The air handler would be in the attic and the condenser (?) outside. It's a one-story villa near Tampa, so having great AC is important. I am not seasonal. One of the Trane estimates offers a 10 yr/parts AND labor (more expensive), but the other said that the main manufacturers were all going to a more expensive extended plan--like $1500 on labor, so then I wonder if the 1st guy is not telling the whole truth. Or maybe the other guy isn't! Oh, are you asking if I am close to the water? No, but not too far from I-75. Thanks.

These appear to be heat pump condensers.

If you want the best dehumidification in AC cooling. Then I would want the Tam7 var speed air handler. If not that, then the Gam5 high eff air hander but not var speed.

The condensers are similar all carrying the 10-10-10 warranty, compressor, coil, and parts. The XR series is quieter than the XB series.

I would lean to the XR13.

5270058 Active Systems XR13 WEATHERTRON TRANE 4TWR3030C1 *AM7A0B30H21 31400 12.50 15.00 29000 9.00 16500 1 HRCU-A-CB 253 646 Yes

According to AHRI Directory, the above system qualifies for small Fed Tax Credit. I would recommend the HW Mdl #8321 thermostat. I assume a small heat strip for your location, probably 5-7 KW size.

Lineset to flushed or replaced. It's important that it is to mfg spec as far as size.

Ext warranty for labor is usually up to 10% of purchase price, no more.

IMO

Thanks, Tigerdunes.

Does the Hyperion or not-Hyperion make a difference in a hot attic? Humidity is a concern, and I did see some problems with the Hyperion in its early days as I researched.

But the non-Hyperion Trane quote was significantly less.

Thanks again.

Absolutely the Hyperion, especially in a hot attic. The Hyperion is positive pressure by design, which means no sucking in hot attic air unlike other air handlers. It is important that your ducts are sealed and insulated well, if this hasn't been addressed already. The variable speed TAM7 is the way to go whether you choose the XB14 or XR13. Other nice features of the TAM7 are the all aluminum coil for better reliability and electronic expansion valve for better efficiency and performance out of your system.

This post was edited by ryanhughes on Sun, Jun 16, 13 at 12:37

Thanks so much. All your advice and information help very much.