CC/CC Buck Schematic (Circuit Help)
The pot nearest the chip sets the open circuit output voltage - with no current flow, the op-amp is out of the deal and feedback is derived from the output via the pot feeding the 1k in parallel with the 1nF. The 47k and other pot are largely out of the equation because the 1k dominates that clump of components.

So, open circuit voltage is the main 20k pot nearest the chip and the 1k that form a potential divider: -



In red are the components that set the open circuit output voltage.

In blue are the components that dictate the current limit.