Help - relay wiring on EasyTouch (upgrading from Compool LX100)

[lvrpl]

I'm upgrading my old Compool LX100 to a Pentair EasyTouch and am baffled by something I've found on the relay wiring. On both the old Compool and new EasyTouch boards, there is a connection for wires coming from the filter pump relay (two wires that are connected to a push connector, which then connects to the board).

When I opened up the controller to disconnect the connections from the old LX100 board, it looks like whoever installed the LX100 originally spliced a third wire off of the two wires going into that relay connection on the board. That third wire ran into the ground connection terminal on the board for the spa-side remote (a screw terminal connection - so in this case that third wire from the filter pump relay is spliced off and connects to that screw terminal ground along with the ground wire that actually comes from the spa-side remote).

Why would this have been done? Is it a problem? Should I just connect that third wire again to a ground terminal on the new EasyTouch board i'm installing?

Thanks for any help - I was expecting this to be very straightforward but am quite confused by finding this third wire spliced off of the relay connection before it actually connects to the board, and I don't want to screw anything up.

 

[Jimrahbe]

l,

I have no idea what the third wire is for, but I would not connect it to the EasyTouch board.

Do you use the spa-side remote? If so, I would get everything running without it and then see if the third wire is needed to make the Spa-side remote work. My guess is that you won't need it..

Thanks,

Jim R.

 

[lvrpl]

I do have a spa side remote (although I have the old one and haven't bought the new one yet - was going to try it and see if it works with the old one and, if not, decide if I want to spend the money on a new spa side remote). However, my only worry was whether that third wire was being used to ground the filter pump relay for some reason (and not the spa side remote)....

I guess the other question is that, of the two wires coming from the relay to the board, one is a ground wire, correct? And if so, every single connection on the board (all relays, screw terminals for valves, etc), should all be on the same ground circuit, right?

 

[Jimrahbe]

l,

The two wires from the relay are isolated from ground so that if the connector is plugged into the main board backwards it does not matter. I suspect, but do not know for sure, that all the "grounds" are connected together on the board side of the connection.

Personally, once you get the EasyTouch up and running, I would think about adding ScreenLogic2.. this would allow you to control things remotely with a PC, Tablet, or phone. Costs about $375 bucks.. Makes programming about 10 x easier..

Thanks,

Jim R.

 

[lvrpl]

I got it up and running. Seems to be working correctly so far, although I need to spend some time programming schedules still. Thanks for the help.