I have 8 Delaire 18-24 volt Solenoids with a 8 port manifold, a board with 8 DPDT 12 volt relays. Also has some kind of logic board and cannot find any information on how it functions.
I have checked that the solenoids work and the relays work. The 8 port manifold has one nib broken off and the broken part is still in the tubing, this could be glued back onto the manifold.
The logic board had a bad 5 volt regulator and is replaced now.
All I could glean from how this function was you supply 24 volts DC and itr would power the relays, solenoids and logic board, but I would rewire the power to 12 volt DC for the logic board and relays and 24 volt DC wall wort for the solenoids. The relays activate the solenoids.
Price $75.00 + PPF and shipping.