Product Overview

The Pentair IntelliCenter® i5P Single Body Personality Kit | 521909 is the core control-board package used to configure a compatible Pentair IntelliCenter automation system for a single body of water, such as a pool-only or spa-only installation.

The i5P serves as the base IntelliCenter personality configuration and provides control for four auxiliary circuits plus one dedicated filter pump circuit when installed in a properly equipped IntelliCenter Load Center or Power Center. It is designed for installations where one body of water needs centralized automation of compatible pool equipment such as pumps, heaters, lighting, water features, and other accessories.

Part number 521909 includes the i5P main system motherboard and does not require a separate daughter card. It does not include additional relays; the standard compatible IntelliCenter Load/Power Center supplies the five base high-voltage relays.

This product is a Personality Kit only and is not a complete IntelliCenter automation system. A compatible IntelliCenter Load Center or Power Center and any required communication, wireless, salt-system, or accessory components must be purchased separately.

Key Features

• Genuine Pentair IntelliCenter replacement/configuration component
• Manufacturer Part Number: 521909
• IntelliCenter i5P Personality Kit
• Designed for a single body of water
• Ideal for pool-only or spa-only applications
• Includes the i5P main system motherboard
• No daughter card required
• Supports 4 auxiliary circuits
• Supports 1 dedicated filter pump circuit
• Five total base relay-controlled circuits when paired with the appropriate Load/Power Center
• Part of Pentair's expandable IntelliCenter automation platform
• Compatible with IntelliCenter system programming and equipment control
• Allows centralized management of compatible pool equipment
• Designed for professional IntelliCenter system installation or replacement
• Genuine OEM Pentair component

Product Specifications

Single-Body IntelliCenter Configuration

The 521909 i5P is specifically designed for a single-body installation. This means the automation system is configured to operate either a swimming pool or a spa as one body of water.

For a typical pool-only installation, an IntelliCenter system using the i5P personality can automate compatible equipment such as:

• Variable-speed pool pumps
• Single-speed pumps
• Pool heaters
• Heat pumps
• Pool lighting
• Color LED lighting
• Water features
• Auxiliary equipment
• Compatible chemical-control equipment

The exact equipment that can be controlled depends on the complete IntelliCenter configuration and installed accessories.

Four Auxiliary Circuits + Filter Pump Control

When installed with the appropriate IntelliCenter Load/Power Center, the i5P configuration provides connections for:

FILTER PUMP
AUX 1
AUX 2
AUX 3
AUX 4

This gives the base i5P system four auxiliary circuits in addition to the dedicated filter-pump circuit.

The compatible standard IntelliCenter Load/Power Center is equipped with five high-voltage relays. Part number 521909 itself does not include additional relays.

Important Compatibility Information

The Pentair 521909 is not a complete automation system.

It is intended to be used as part of a compatible Pentair IntelliCenter installation and should not be ordered when a complete Load Center, enclosure, relays, wireless equipment, or other system components are also required.

This model is for:

• Pool-only systems
• Spa-only systems
• Single-body applications

This model is not intended as the personality kit for:

• Shared-equipment pool/spa combinations
• Dual-equipment pool/spa systems

For a shared pool-and-spa equipment configuration, an i5PS, i8PS, or i10PS personality configuration may be required depending on the number of circuits needed.

Always verify the existing IntelliCenter system configuration before ordering.

Expandable IntelliCenter Platform

One advantage of the IntelliCenter platform is its ability to accommodate larger equipment configurations.

Pentair offers several personality configurations, including:

• i5P – 521909: Single body
• i8P – 521910: Single body with additional auxiliary capacity
• i10P – 521911: Single body with additional auxiliary capacity
• i5PS – 521912: Shared pool/spa equipment
• i8PS – 521913: Shared pool/spa equipment
• i10PS – 521914: Shared pool/spa equipment
• i10D – 521915: Dual equipment

Choosing the correct personality kit is important because it determines how the IntelliCenter system is configured to manage the pool equipment.

Frequently Asked Questions

What is Pentair 521909?

Pentair 521909 is the IntelliCenter i5P Single Body Personality Kit used to configure a compatible IntelliCenter automation system for a pool-only or spa-only installation.

Is 521909 a complete IntelliCenter system?

No. This is a Personality Kit, not a complete automation package. A compatible IntelliCenter Load Center or Power Center and other required components are sold separately.

How many circuits does the i5P control?

The i5P provides four auxiliary circuits plus one dedicated filter pump circuit when installed in the appropriate IntelliCenter system.

Does 521909 include relays?

Pentair lists zero additional relays with the 521909 Personality Kit. The standard compatible IntelliCenter Load/Power Center provides the five base relays.

Is this for a pool and spa combination?

Not when the pool and spa share equipment. The 521909 i5P is intended for a single body of water. Shared-equipment pool/spa systems use an appropriate PS personality configuration.

Does this include the IntelliCenter Load Center?

No. The Load Center or Power Center is sold separately.

Is this a genuine Pentair product?

Yes. 521909 is a genuine Pentair IntelliCenter Personality Kit.