Here's a link I ran across with some FAQs on your system that may or may not be beneficial to you.
Click on the PCC2000 link to see the manual as well.
PCC2000 in-floor cleaning system FAQ.
www.1paramount.com
Since your IFCS pump runs within the pool pump runtimes, I'd just leave the automation as is for now.
No idea what the iAqualink infloor setting does.
It does sound like you may have an issue with the water valve though. It should rotate thru the zones. Do the heads ever retract with the IFCS pump on? Open up the water valve and see if there is a problem with the internals.
Does the pool have any returns on the walls (not popups)? The manual Jandy valve at the water valve may control return water to the water valve and those possibly wall returns
In post #1 you said
I understand how the JVA valve cycles every 20 minutes but what valve cycles?
Then in post #13 commemt #8
No JVA cycles every 20 minutes (that is what I wonder about how the iAquaLink InFloor settings “enabled/not enabled functions”
Not sure what you mean by this statements.
Why would an actuator cycle every 20 minutes?
There look to be 3 actuators....
1 on the pool/spa suction
1 on the pool spa return
1 on what I think is the solar valve
The water valve should rotate thru each zone anytime the IFCS pump is on and the water valve has sufficient pressure to run the system.
The PCC2000 is probably one of the most over complicated IFCS that I've seen.