I have the same system as you, I am able to put the spa into spliiover mode 2X a day for an hour.
Don't mean to continue asking the same questions but I just spoke to the builder about the way the 3 way valve and actuator are working and I don't think he is in agreement about the possibilities. He is supposed to come today and I want to make sure that what I posted is clear so I have the correct information when he comes.
I have a three way valve with pump supply in the center, spa return on one end and pool return on the other. The valve rotates 180 degrees, Pointed down, the spa returns are closed. Pointed up, the pool returns are closed. And in between variable between pool and spa. There is a GVA-24 Hayward valve installed.
Prior to the actuator, I would manually move it around, typically setting the spa off unless we wanted the spillover for effect or for refreshing the water which I would do a couple of times/day.
Plumber added the actuator, programmed the control and says I will no longer be able to have the spillover AND pool features going at once. That either I will be in the pool mode (with returns active to both spa and pool) or spa mode (with returns shut off to pool and fully open to the spa) So, no matter what mode, the spa returns would always be on.
So the actuator has full 180 degree motion using the switch but not from the control. Plumber said I would have to flip the toggle to go past where it stops from the control. Builder on the phone seems to agree with the plumber.
If I was already fully understood, sorry for continuing to ask and ask. I don't much time to sort anything out before the builder comes and just want to make sure what I am wanting and think yall are saying is possible can be done. And I just saw some prior posts that I did not realize were there. Will look at them later when I have more time.
And Jeff, thanks for sharing your post. I don't claim to have any expertise in this field but some issues could be easily avoided if there was more thought and oversight.