Intermatic Timer with Pump and Pentiar IC-40 SWCG

[EdKuhn]

I've been investigating running my main pump at less-than-24-hrs a day with my Pentair IC-40 SWCG. I had assumed that I could just set the Intermatic timer and that the pump and the IC-40 were connected thru the timer. This weekend I got my SWCG ready for the season and hooked it up today. To my dismay I discovered that the Intermatic timer only controls the pump, not the SWCG. So to summarize, when the pump shuts off via the timer, the SWCG still has power, which I know is not acceptable. I took a look at the wiring in the Intermatic timer box and I have added a photo. In the photo the main power is coming up on the left side, and the wiring to the pump is coming up on the right. You will notice the extra wiring for the freeze protection coming in from the left. Also note that the pump and the SWCG power unit are connected to the same breaker (30 or 50A). To have the pump and the SWCG operate at the same time, I was wondering if I could either just add the wiring for the SWCG power unit and "stack" the wire leads on the timer terminals, or maybe run jumpers from the timer terminals and connect the pump and SWCG power unit together to the jumpers. I know the pump is wired 230 and I'm guessing that the IC-40 power unit is too, since they are off the same breaker? Thoughts/advice/warnings?

 

[Jimrahbe]

Ed,

This is a case where guessing is not allowed...

There is no reason you can't connect your SWCG's power supply to the same load (output) connections that run the pump..

This assumes your IC40 is set to run using 220 volts... I would not guess here, otherwise you will let the smoke out of the IC40. Confirm what voltage the IC40 is using before making any changes...

Thanks,

Jim R.-

 

[ajw22]

Instamatic was a type of Kodak camera. Intermatic makes timers. But I digress ...

Where is the pump and the SWCG power unit connected to the same breaker (30 or 50A)? Post a pic.

According to code pumps are supposed to be on a dedicated circuit. I don't know what code is by you or when this was installed.

Technically you can move the SWG power, if it is 220V, to the load side of the Intermatic timer and then both the pump and SWG will be controlled at the same time. You already have two wires connected to each load terminal. I am not sure what the electrical best practice is to connect 3 wires to one terminal.

 

[EdKuhn]

Instamatic was a type of Kodak camera. Intermatic makes timers. But I digress ...

Where is the pump and the SWCG power unit connected to the same breaker (30 or 50A)? Post a pic.

According to code pumps are supposed to be on a dedicated circuit. I don't know what code is by you or when this was installed.

Technically you can move the SWG power, if it is 220V, to the load side of the Intermatic timer and then both the ppump and SWG will be controlled at the same time. You already have two wires connected to each load terminal. I am not sure what the electrical best practice is to connect 3 wires to one terminal.

Inter Insta potato pahtahto I was wondering the same thing re: 3 wires per terminal. To keep 2 wires on each load terminal I suppose I could disconnect the freeze protection during the pool season and put it back when I disconnect the SWCG in the fall...I'll take a look at the breaker later in the week, but I know that it shuts off both the SWCG and the pump. As far as code I have no idea. I assume this setup was installed at least ten years ago (came with the house that we moved into late '17).

 

[ajw22]

Thinking about it I would tie together 3 wires along with a short pigtail using a properly sized wire nut and then connect the pigtail to the load terminal.

Or use WAGO | 221 to connect 3 wires to a pigtail.