I was hoping that someone would know the answer to my questions about Pentair Easytouch transformers. Mine is bad and I am on the hunt for a replacement. In my search I found 2 part numbers... 520653 and 521233. They appear to be close to identical except for the differences shown in the attached pictures. The difference in price online is about $70-$80. I'm always a fan of saving money and I can easily reuse my bracket so I was thinking I could buy the 521233 and just simply hack off one of the "feet" or just drill 4 new holes in my bracket to use the "feet" as is. Anyway, am I missing something? All the wire colors are the same, the connectors appear to be the same, and the inputs and outputs appear to be the same (In:115/230VAC, Out: 12/18/24VAC). Thanks.
Pentair Easytouch Transformer
- Thread starter xperimental
- Start date
- Nov 12, 2017
- 12,636
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Hopefully Jim will have the answer. But ETs are sold with different transformers for different things (one for the board, another for the SWG, for example), so you can't go by the picture or the wire colors, I would think. You need to see the spec's.
Either transformer will work, so you can get the 521233 part number. The voltage outputs are the same on both... 12vac is converted to dc and runs the board, 18vac is converted to dc and drives the relays, and 24vac drives the valves.
Pentair changed where they mount the transformer and started using the one with the "feet", and I think it was at the same time they re-organized the low-voltage breakers on the control panel bezel. You've probably got the older style with a rectangular cutout for three breakers in a row (and the transformer on the bracket behind the easytouch bezel)... the new style has a square cutout for 4 breakers in a 2x2 grid and they moved transformer down into the load center part of the box.
The new style bezel:
The old style bezel:
Pentair changed where they mount the transformer and started using the one with the "feet", and I think it was at the same time they re-organized the low-voltage breakers on the control panel bezel. You've probably got the older style with a rectangular cutout for three breakers in a row (and the transformer on the bracket behind the easytouch bezel)... the new style has a square cutout for 4 breakers in a 2x2 grid and they moved transformer down into the load center part of the box.
The new style bezel:
The old style bezel:
- Nov 12, 2017
- 12,636
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Thanks ogdento. But you reminded me...
I really hate my ET 4... those pictures aren't helping.
I really hate my ET 4... those pictures aren't helping.Thanks Ogdento. I bought one today, cut the "feet" off (it's a single flat plate), and installed it. It works perfect. The picture shows the new one installed in the old bracket.
Now I should mention why I needed a new one...
I doubt I'm the only one who's done this, but I had mistakenly connected all three input wires to power (black, purple, and yellow) which is a no no. It should be black/purple for 115V or black/yellow for 230V. Right after I turned the power on everything was working fine. Later that day I realized something was wrong and realized what I had done. A couple of TFP posts I found indicated that I may have fried the transformer and it surely did. Fortunately it didn't hurt the main board. I got away cheap this time. Live and learn. Thanks again.
Now I should mention why I needed a new one...
I doubt I'm the only one who's done this, but I had mistakenly connected all three input wires to power (black, purple, and yellow) which is a no no. It should be black/purple for 115V or black/yellow for 230V. Right after I turned the power on everything was working fine. Later that day I realized something was wrong and realized what I had done. A couple of TFP posts I found indicated that I may have fried the transformer and it surely did. Fortunately it didn't hurt the main board. I got away cheap this time. Live and learn. Thanks again.
x,
I was out of town and did not get a chance to answer your original post, but my initial thought was...
In my 50 years working in electronics, I have never seen a power transformer bad, unless it was mis-wired...
I was going to ask why you thought it was bad, but now I know the "Rest of the Story"
I'm glad you got it working..
Jim R.
I was out of town and did not get a chance to answer your original post, but my initial thought was...
In my 50 years working in electronics, I have never seen a power transformer bad, unless it was mis-wired...
I was going to ask why you thought it was bad, but now I know the "Rest of the Story"
I'm glad you got it working..
Jim R.