Forewarning, I am using the latest IC2 build for MC 1.8.9 (running it on a personal modpack).
I found some blocks, called Reactor Coolant Injector (RSH) and Reactor Coolant Injector (LZH), and was super excited, but I can't figure out a way to use them. They don't accept any items (that I've tried) into the 9 slot center grid, and the "I" in the upper left corner of the GUI says that the only upgrade it accepts is a Pulling Upgrade.
Basically, I can't figure out how they work, and there aren't any wiki pages (ftbwiki, ftb.gamepedia, wiki.industrial-craft, etc.) on them except for the old ones from Advanced Repulsion Systems.
Any help would be greatly appreciated.