Did you look at the manual I linked? That unit came with a single regulator.
There's only one pressure to "look for" regarding setting the pressure to the keg, and you set it by turning the big shiny regulator knob and watching the low pressure gauge, which if your regulator matches the one in the manual for your kegerator, is the one at 12 o'clock. As long as the other gauge reads a few hundred psi with the tank valve wide open you're good to go.
Honest, this really isn't that complicated...