I just moved into a new home and I have a xv90 furnace w/ xl14i a/c as well as a humidifier. I have no humidistat but the touchscreen stat has 7 wires hooked up at the stat with a y2 terminal being used. I have worked with Trane equipment in the past but only saw humidifiers used with seperate humidistats. Is there a feature in the stat itself that allows me to activate the humidifier and if there us how do I access it? Any feedback is helpful.