Do you mean by dry mount, you glew your prints to carton?
I use the dry mounting presses just to flatten my fiber prints, but I know this press was originally meant for glewing original prints or anything really, to carton. I press my prints flat at roughly 90 degrees and I have the tension of the presses set up not too tight. It means the time of pressing is anywhere from 2 to 5 minutes. Gives me time to do other things at the same time. Different brand presses have a different heat intensity, so there's no general parameter. My presses are a Büscher for 50X60 and a Seal for 40X50 and smaller. The Seal heats up much faster, but the Büscher maintains the high temperatures longer . . .
Unless someone has experience with the kallitypes, I would experiment and try to get good results, with the least tension of your press.
Alternatively, if you are actually mounting to carton why not fix them to carton with acid free photocorners?