I am going to take you on a magic walk-thru of a system we just did that has all the fixings.
Daikin 5 TON "FIT" Modulating Air Conditioner, Daikin Modulation HE Gas Furnace, Honeywell EAC, Rheme Halo LED, Honeywell and EWC Zoning. PLUS, a lonely water heater, lol.
Before I forget, here is a video of the crawlspace: • CRAWL SPACE (I describe the "whys" of what is going on down there)
Come on! Lets check it out together!