This is the th-8320 thermostat by Honeywell, visionpro 8000. I looked up the website and noticed the wiring diagram shows wires for Y2 and w2. I remembered only seeing the 4 wires from our old stat when he went to install the new one. I thought nothing of it and didn't watch to see how or if he programmed it (didn't realize it required all that).

After seeing the diagram I went and checked and I think I am only wired to run the stages off the furnace, that the stat isn't doing anything special as is. Am I correct? The hvac co is sending out a field supervisor to check it. What is the
Lint of this stat if it is not wired for stages?
I'm trying to figure out to post pic I took on my iPad....
Thoughts?