These events didn't happen in PAD's run. Banner and the Hulk were separated via the Nutrient Bath in IH #315, which was done by John Byrne. His run was IH #314 - 319. He left and Al Milgrom took over with #320 and stayed until #330 (not counting the PAD fill-in with issue #328).
Milgrom remerged the two in #323, the color change from green to gray in #324 and the Rick Jones Hulk in #325.
When PAD took over, he spent his initial issues tying up loose ends from the Byrne/Milgrom issues (writing off the Hulkbusters, curing Rick, etc.) and going into his own, like the Ground Zero storyline.