I live in Phoenix. We have a packaged heat pump on the roof and needs to
be replaced. I've been quoted a Trane unit and a Carrier unit.
Carrier - 50XT0603TP with Infinity control. 14.5 SEER/11.0 EER/8.0 HSPF
Trane - XL16C with TCONT802. 15.2 SEER/11.5 EER/8.6 HSPF
Which system should I get?