Pentair IntelliCenter

Every IntelliCenter is the same board with a different card in it. That is the single most useful thing to know about the system, and it changes what a quote should look like.

The i5P is always underneath

Pentair's installation guide sets it out plainly. The i5P main system board, part 521909, carries four auxiliary circuits and one dedicated filter pump circuit. Every larger configuration is that board with a personality kit added to it:

Single equipment — one body of water, pool only or spa only:

• i8P, 521910 — three more circuits, for seven plus the filter pump
• i10P, 521911 — five more, for nine plus the filter pump

Shared equipment — a pool and spa on one filtration system:

• i5PS, 521912 — the card that makes a single-body system a pool-and-spa one
• i8PS, 521913 — that, plus three circuits, for seven
• i10PS, 521914 — plus five, for nine

Dual equipment — a pool and spa with separate sets of gear, each with its own temperature:

• i10D, 521915 — nine circuits and two dedicated filter pump outputs, the only card that adds a second

So wanting one more circuit, or wanting to add a spa, is a card in the enclosure already on your wall. It is not a new control system, and a quote that says otherwise is worth a second opinion.

The ceiling is a long way up: 39 auxiliary circuits using up to three expansion enclosures, 16 IntelliFlo pumps, two bodies of water, multiple RS-485 heaters, two indoor panels, and valves expandable to ten with the separate valve expansion kit, 522038z.

Twenty-two SKUs became six in 2026

Pentair published a cross-reference sheet with a blunt opening line: to simplify ordering and inventory, the IntelliCenter lineup has been consolidated from 22 items to 6.

The four current full systems are identical in almost every respect — five relays expandable to ten, salt chlorine generator transformer included, high-powered wireless included, salt cell blank kit included. What separates them is what is in the box for valves:

• 523999 — no valve actuators
• 524000 — two Compool actuators
• 524001 — two IntelliValve actuators
• 524002 — no valve actuators, replacing a different set of legacy items

Then two that the consolidation did not touch, and they are a different animal:

• 523911 — Lite, five relays, no actuators
• 523910 — Lite, five relays, two Compool actuators

Two things follow. First, the personality kit choice has moved: you no longer pick i5 or i8 or i10 at purchase. Every current system ships as five relays expandable to ten, and the capacity decision happens later, as a card. Second, if you are holding an old part number, the sheet maps it — and most of the old catalog, including 521904 and 521907, now lands on 524001.

That last point matters if you are working from the EasyTouch migration list. Pentair's 2023 transition guide told EasyTouch owners to order 521904, 521907, 521903 and the rest. Those are now legacy items on this sheet. The mapping still works; it just has an extra hop.

Load center or power center

The distinction is not marketing, and it decides what your electrician has to do.

A load center has a built-in breaker subpanel. A power center does not — it needs a separate panel to feed it. Pentair's installation guide gives them separate chapters and separate knockout diagrams, and calls out 523910 and 523911 as power centers with their own layout.

Those two are the Lite systems, and the trade is visible on the cross-reference sheet: no breaker subpanel, no salt chlorine generator transformer, and plain Wi-Fi rather than the high-powered wireless the full systems ship with.

The salt transformer being standard on the four full systems is worth pausing on. On the EasyTouch, whether the transformer was fitted was a purchase decision people made once and then discovered years later when they wanted salt. On the current IntelliCenter lineup that fork is gone from the full systems and preserved in the Lite ones.

Whichever you fit, the supply is protected by a 150 A maximum, 240 VAC main breaker.

Three apps in one product's life

Worth knowing if the app is why you are buying it.

The IntelliCenter launched paired with ScreenLogic2, the interface it inherited from the EasyTouch generation. Pentair's 2023 automation transition material described it as pairing with the IntelliCenter2 app. The product page now says the IntelliCenter is a member of the Pentair Pool app family, and that owners can now control their system on the Pentair Pool app.

Three apps across one product's life is not a fault, and the current one is the most capable of them. It is a reason to weigh the hardware on what it does at the pad rather than on the app of the moment — and a reason to be glad of the one specification the EasyTouch never had.

Over-the-air updates, which the last generation did not get

The IntelliCenter takes over-the-air software updates.

Set that against the system it replaced: EasyTouch firmware stopped at version 2.190 in June 2021 and there will not be another. Anything wrong with an EasyTouch today is wrong permanently.

On a control system that talks to pumps, heaters, lights and a chlorinator over a serial bus, and to a phone over the internet, being able to update it is a large part of what you are buying. It is also the least visible thing on the specification sheet.

What Pentair promises on superseded items

Pentair's wording here stops short of what it said about the EasyTouch, and the difference is worth noticing.

The bundle transition guide says products moved to obsolete status will continue to be supported, and that Pentair will replace legacy systems under warranty with comparable equipment while parts are available.

The EasyTouch notice said that too, word for word, and then added a commitment: if the parts needed to fulfill a warranty claim were unavailable, Pentair will provide the IntelliCenter Upgrade Kit for the EasyTouch, EasyTouch Lite and IntelliTouch. There is no equivalent sentence here.

That is a fair difference — an EasyTouch is a decade past its design life and a superseded IntelliCenter SKU is not — but if you are buying a bundle on a closing-out part number, "while parts are available" is the phrase you are relying on.

One number to carry with you if you are: the bundles now ship the IntelliChlor Plus 40, part 523735, in place of the IC40, 520555.