So the key to this was to reverse the polarity. This is what I used to get it to work. A half second inching setting in the respective relays is all that you need.
You can only do three solenoids per 4 station Pro. The first one is used to send a "close" pulse to all the channels at once...
After much reading I managed to get one solenoid to work. The polarity has to be switched to open and close a DC solenoid. AC solenoids are different in the sense that it stays open as long as there is power.
DC only needs a pulse with +- in one direction and -+ to close. So you use two relays...
Getting very close- I am getting a time delay relay tomorrow which is able to pulse the solenoid at 250ms. This is a key step in making the DC solenoid work. I will post a more comprehensive set of instructions once I have it working.
<<Update>>
The time delay relay had nothing to do with this...
This assumes that the AC wiring is the same as DC? AC solenoids have two red wires- you can take anyone but the DC solenoids have a black (negative) and red (positive) wire. This is the tricky part, how to wire the DC power side of things into this DC only setup.
Currently there are three Samsung lithium 18650's. They provide ample power and phase two I will add a small sun panel with a voltage regulator to keep it topped up.
I had a Hunter XC Hybrid that ran off a 9V battery for 10 years on three DC solenoids with a PGP valve.
Then suddenly it started draining my batteries in less than a week where it use to be a year.
Contacted Hunter but they gave me no hope of getting this looked at. This accelerated my move into...