OK - let's work down that path, then - sorry, but this is a bit confusing to me.
This starts with me wanting an inside wired keypad - so, based on the above the keypad I need to control my four functions : AQL-WW-P-4, right? Looks like this ...
Some, however, have reported that this device would NOT control their later model PL-P-4 due to a firmware change - it would supposedly mirror what was on the main controller keypad, but NOT change any settings. But, this is when those folks started using P-4 and PS-4 interchangeably ...
OK - so, the one shown above
should work? This means a P-8 should also work - and, would allow me to swap out the main board, add another relay and run at least a solar heating system?
Or, is there some inherent rationale that would dictate I swap the main board to a PL-PS-8, and simply get the same size wired remote for the PS?
Is this making sense?
As always, I appreciate your time!!