I replaced my system earlier this year with the following Trane system:
XL16i 3-ton HP 4TWX6036B1000AA
XV80 100k BTU/hr furnace TUD100R9V3K (2 stage, variable speed)
Outdoor temp sensor
Aprilaire M-700 Power Humidifier
Aprilaire 2200 Media Filter
After research on this great site, I've spoken with my contractor about replacing the 803 t-stat with the VisionPro IAQ. Actually, I've been talking to my contractor about this switch since I had the initial install, but he wasn't familiar with the IAQ and it's advantages over the 803 until a recent install.
Previously, I remember reading about some important changes that were included in Version #2 of the IAQ that weren't included in Version #1. Is that correct and what are the differences? How do I insure that I get a Version #2 model?
I don't want to shell out the $$ to replace a perfectly good new 803 T-stat if the IAQ replacement won't provide the extra controls (dual fuel control, dehumidification control, and 2-stage gas furnace control).
Thanks for any help you can provide.