Wiring SWG Transformer To Pool Pump Relay When Heater Is Wired There Too?

Scowman

Active member
Dec 11, 2016
38
cypress tx
Installing new AquaPure 1400 in an AquaLink RS control box. Instructions say to connect SWG transformer (it must weight 25 lbs!!!) to 240v pool pump relay. That makes sense as it will only run when pool pump is on. But my pool heater (standard Pentair gas unit) is already taking up the other side of the 240v load lugs. It seems it's a good idea to synch the pool heater with the filter pump too (ok, makes sense, heater only runs when pool pump is on).

But how do I (mechanically/physically) hook a third 240v load on this relay? Is that really a good idea? What if I have all three going at once? Will that overload the 120v lines coming in? Will it burn up the relay itself? And if all that is ok, how do I physically hook the third wire in? Is there a special lug I can screw into the current lug spot that adds a third wire spot?

This is not my box but similar 240v relay with wires on both sides of lugs. How do I get a third wire on there?
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All ideas and work arounds welcome.

Thanks,

Ken
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
33,578
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Wire nut the wires to the SWG and heater together with a short pigtail and connect the pigtail to the LOAD screws.

It is poor practice to put more then two wires under one screw.
 

Jimrahbe

Mod Squad
TFP Expert
LifeTime Supporter
Jul 7, 2014
25,211
Bedford, TX
Ken,

The only thing that is drawing any real current is the pump, the heater and SWCG don't use a lot of current.

I assume this is a gas heater and not an electric heat pump.

Thanks,

Jim R.
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
33,578
Northern NJ
Pool Size
35000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
So having all three on one relay is not going to overload the line wires or the relay itself?

What is the amperage of the pump CB?

What does the pump motor data plate say the amps required are?

What are the amps from the heater and SWG?

If they all total less then 80% of the CB amps then you are good.