I appreciate the help on this one in advance. Pool builder installed EasyTouch 4 Pool & Spa with 4 Relays. As the electrician was wiring he and I both realized that I'll need 7 relays to achieve what I want - aka the EasyTouch 8 Pool & Spa. I called the pool builder and they wanted to charge more than I'm willing to pay for the board upgrade with the additional relays.
The current EasyTouch 4 board is PN#520659. My question is, and I think this will work, if I replace just the circuit board with the EasyTouch 8 board (PN#520657) and buy additional relays (PN#520106) this would work?
I can save a LOT of money by buying outside of the builder. I just wasn't sure if there were additional headers or cables needed that connect the control unit to the circuit board for the EZ8 vs the EZ4.