I am updating my aqua cal heater (SuperQuiet-SQ166R) and adding the new HP9 board so that I can control both heating and cooling from my phone (iaqualink). Currently it is on the 2 -wire function and I can only control heating. I connected the board as the written instructions/video tutorial on aqua cal's website instructed; however, I can only still heat the pool with the app and not cool. I had the 2-wire (from aqua link) connected to the HP9 board (Y and Z) and no cooling. I then I was planning to connect the Yellow and Bluish Green wire to the BUS Port B on the HP9 board and connect the Yellow and Bluish Green wire to the 2 middle slots of the 4-pin connector at the aqua link panel and switch the aqua cal to SMART. I didn't get a chance to try it, because my pool pump died. So while I'm getting that fixed, I want to check to see if anyone else has done this upgrade before and the connections they had to make in order to get heating and cooling from their app versus just heating capabilities. Thanks.