I'm thinking of adding a variable speed pump to my Aqualink PDA since my housing is cracked on my current Jandy Plus HP pump and I don't know how much longer it will last. The motor on the pump probably doesn't have all that long left either. I was going to go with the Ecotech motor when mine burnt up but since I probably will have to replace the housing, it seems better to take the easier approach and go with a VS pump that works directly with the PDA.
So I currently have 1 2.5 hp Jandy Plus HP pump. It seems the Jandy VS pumps only go up to 2hp and they seem to be expensive. It seems my best option is the Pentair VS pump. I've checked my PDA and it shows the Pentair option for VS pumps.
Question 1, if I wanted to go with the Jandy pump, would the VS Jandy 2hp do the job replacing the single speed 2.5 hp pump?
Question 2 and likely the way I would go since the Pentair is 3hp and cheaper is how do I install this thing to my current PDA system. It seems for a 1 speed pump, I'm hooked up to the pump relay. It seems the variable speed pump is supposed to be directly connected so i assume I can just move the wires on the switched side to the unswitched side of the relay so it is connected all the time. Then how do I hook up pentair variable speed pump to the PDA, is there a cable or something? Is it included? I looked at the installation manual and it said nothing about this.