I answered my question, but it seemed hard to find so I’m posting. I couldn’t see anywhere in the configuration docs that labeled the order of the terminals for the HVAC wiring. I thought I was going to have to take it apart to read the labels on the PCB, but found I could just read them looking at it from an angle below. They are from left to right with the Pi on top: C(N), R(L), W(W), Y(H), G(Hum), W2.
It is up an running the basics though so I can move on to trying to figure out how to configure it fully.