Product Description

Enjoy convenient, automated chlorine production with the Pentair IntelliChlor Plus30 Salt Chlorine Generator Cell. Designed for residential swimming pools up to 30,000 gallons, the Plus30 converts dissolved pool salt into chlorine to help maintain clean, clear, and comfortable water while reducing the need to handle, transport, and store traditional chlorine products.

The updated IntelliChlor Plus platform features a modular construction that makes the controller, sensor module, and cell components easier to inspect and service. Its redesigned conductivity sensor provides more accurate salt-level readings, while the easy-to-read LCD and LED interface displays operating information, diagnostic alerts, water temperature, salinity, cell runtime, and chlorine-output status.

This cell-only model is compatible with the Pentair IntelliChlor PC100 Power Center and select Pentair automation systems. It is also the recommended replacement for the discontinued Pentair iChlor 30 cell, part number 523009.

The package includes the salt cell, two unions with O-rings, an acid-cleaning stand with O-ring, and a retrofit adapter. A compatible power center is required and is not included.

Key Features

• Designed for residential pools up to 30,000 gallons
• Produces up to 1.1 pounds of chlorine every 24 hours at 100% output
• Converts ordinary dissolved pool salt into chlorine
• Updated modular design simplifies electronics and sensor servicing
• Redesigned conductivity sensor improves salt-level accuracy
• LCD and LED interface displays operating and diagnostic information
• More than 20 built-in diagnostics and system warnings
• Adjustable chlorine-output settings
• One-touch Boost mode provides 100% output for 24 hours
• SmartSense technology supports compatible pump and pool-cover functions
• Automatic cycling helps reduce calcium and scale accumulation
• Compatible with the Pentair IntelliChlor PC100 Power Center
• Integrates with compatible Pentair automation systems
• Designed as a retrofit for compatible IntelliChlor and iChlor plumbing
• Includes an acid-cleaning stand and retrofit adapter
• UL Listed and certified to NSF/ANSI 50
• Genuine Pentair replacement cell

Product Benefits

Automatic Chlorine Production

The IntelliChlor Plus30 generates chlorine while the circulation system is operating. Chlorine production can be adjusted by changing the output percentage or the number of hours the cell operates each day.

Clear Operating Information

The integrated display provides access to important system information, including:

• Current chlorine-output percentage
• Measured salinity
• Water temperature
• Cell voltage and current
• Cell runtime
• Flow status
• Chlorination status
• Sensor and controller firmware information
• Diagnostic warnings and service messages

Improved Serviceability

The modular controller and sensor design allows individual components to be serviced without automatically replacing the complete salt chlorine generator.

Built-In Flow Protection

The integrated flow sensor confirms that sufficient water is moving through the cell before chlorine production begins. The unit stops chlorine production when adequate flow is not detected.

Easier Routine Cleaning

An acid wash stand and sealing O-ring are included for cleaning excessive calcium scale from the cell blades when a normal water rinse is not sufficient.

Retrofit-Friendly Design

The Plus30 matches the compact iChlor form factor and includes a retrofit adapter for compatible installations previously using an older Pentair salt cell.

Specifications

Compatibility

The Pentair IntelliChlor Plus30 is designed for compatible residential saltwater pool systems using:

• Pentair IntelliChlor PC100 Power Center
• Compatible Pentair automation systems
• Existing compatible IntelliChlor plumbing
• Existing compatible iChlor plumbing
• 2-inch IntelliChlor-style unions
• Flow rates between 25 and 105 GPM

Recommended Replacement For

• Pentair iChlor 30 cell
• Pentair part number 523009

The included retrofit adapter helps bridge the plumbing space when replacing certain longer, first-generation IntelliChlor cells with the shorter Plus30 cell.

Compatibility should be confirmed using the existing cell model, power center, plumbing dimensions, automation system, and installation requirements. Do not select a replacement cell based only on pool size or appearance.

Power Center Requirement

The 523730 is a cell-only product and cannot operate independently. It requires a compatible Pentair power source, such as:

• Pentair IntelliChlor PC100 Power Center, part number 520556
• An existing approved Pentair power center
• A compatible Pentair automation load center equipped to power the cell

The power center is not included. Customers needing both the Plus30 cell and a power center should select the appropriate complete power bundle rather than the cell-only model.

Package Includes

• Pentair IntelliChlor Plus30 salt chlorine generator cell
• Two 2-inch cell unions
• Two union O-rings
• Acid wash stand
• Acid wash stand O-ring
• Retrofit adapter
• Installation documentation

Not Included

• IntelliChlor PC100 Power Center
• Pool automation controller
• Salt
• Muriatic acid
• Electrical wiring
• Additional plumbing fittings
• Spacer cell
• Pool-water testing equipment
• Installation labor

Installation Information

The salt cell should be installed after the pool filter and heater in the return plumbing. Install the cell at least 3 feet from the heater outlet and provide approximately 12 to 18 inches of straight pipe before the cell inlet for best flow sensing.

The cell can be installed horizontally or vertically. For best performance, vertical installation is recommended with water flowing upward through the cell. When installed horizontally, the control panel must face upward.

The Plus30 requires a minimum flow rate of 25 GPM. Systems operating above 80 GPM should use a properly configured bypass loop to support reliable flow sensing.

The salt chlorine generator and pool pump must be wired so that the cell can only receive power while the circulation pump is operating. Incorrect installation may allow chlorine gas to accumulate inside the plumbing.

Installation and service should be completed by a qualified pool professional according to Pentair instructions and all applicable plumbing and electrical codes.

Recommended Water Conditions

For proper operation:

• Maintain salinity near 3,600 ppm
• Maintain free chlorine according to the pool professional’s recommendation
• Balance pH, total alkalinity, calcium hardness, and stabilizer
• Maintain sufficient circulation and filtration
• Confirm salt readings with an independent, reliable test method
• Do not operate the cell without water flowing through it

Chlorine production may be reduced when salinity falls below approximately 3,000 ppm. The cell stops producing chlorine at very low salt levels and when the water temperature drops below approximately 52°F.

High salt levels above approximately 4,500 ppm may damage pool surfaces, plumbing, and other equipment.

Operation

Adjustable Chlorine Output

Use the output controls to adjust the percentage of time the cell produces chlorine while the circulation pump is running. Available output should be adjusted according to water temperature, pool usage, weather, sunlight, and measured free-chlorine levels.

Boost Mode

Boost mode increases chlorine production to 100% for the next 24 operating hours. It can be used after heavy swimming activity, significant rainfall, or other temporary increases in chlorine demand.

Boost mode does not replace proper water testing or corrective water treatment when chlorine levels are severely low.

Automation Control

When connected to a compatible Pentair automation system, the chlorine-output percentage may be controlled through the automation interface. Some controls on the cell are disabled while output is being managed remotely.

Maintenance

Inspect the cell blades for calcium scale or debris at least every two months and more frequently in pools with hard water or recurring scale conditions.

Begin with a clean-water rinse. Do not use a pressure washer, screwdriver, brush, or other mechanical tool on the blades because these may damage the protective coating.

Acid cleaning should only be performed when excessive scale remains after rinsing. Unnecessary or frequent acid cleaning can shorten cell life.

When acid cleaning is required:

• Disconnect power to the pump, automation system, and salt cell
• Wear chemical-resistant gloves and eye protection
• Work in a well-ventilated area
• Always add acid to water
• Never add water to acid
• Never use undiluted acid
• Never submerge the complete cell in acid
• Do not leave acid inside the cell for more than 30 minutes
• Rinse the cell and cleaning stand thoroughly after service

Follow the Pentair maintenance guide for the correct dilution ratio and complete cleaning procedure.

Winterization

Freezing water can severely damage the salt cell. In freezing climates, either maintain continuous circulation according to the pool professional’s winter-protection plan or remove the cell after draining the plumbing.

Pentair spacer cell 523102 can be installed in place of compatible LT15, LT25, and Plus30 cells during winterization.

Frequently Asked Questions

Is the power center included?

No. Part number 523730 is the Plus30 cell-only configuration. A compatible Pentair IntelliChlor power center is required.

What size pool is the Plus30 designed for?

It is rated for residential pools up to 30,000 gallons.

How much chlorine does it produce?

The Plus30 produces up to 1.1 pounds of chlorine during 24 hours of operation at 100% output.

Does it replace the Pentair iChlor 30?

Yes. Pentair identifies 523730 as the replacement for the discontinued iChlor 30 cell, part number 523009.

Can it replace an older IntelliChlor cell?

The Plus30 is designed for compatible Pentair salt-system retrofits. The included adapter can bridge the additional plumbing space left by certain longer IntelliChlor cells. Verify the existing power center, plumbing, cell capacity, and automation compatibility before ordering.

Are plumbing unions included?

Yes. Two 2-inch unions and union O-rings are included.

Is the acid cleaning kit included?

Yes. The package includes an acid wash stand and sealing O-ring. Muriatic acid and protective equipment are not included.

Can the cell be installed horizontally?

Yes. It may be installed horizontally or vertically. When installed horizontally, the control panel must face upward. Vertical installation with upward flow is preferred.

What is the minimum required flow rate?

The cell requires at least 25 GPM to produce chlorine.

Does it work with variable-speed pumps?

Yes, provided the pump is operated at a speed that supplies the required flow through the cell. Confirm that the cell’s flow indicator remains active.

Does the cell monitor the pool’s chlorine level?

No. The cell produces chlorine but does not directly monitor or maintain the pool’s free-chlorine concentration. Water must be tested regularly, and output must be adjusted as needed.

What salt level is recommended?

Pentair recommends maintaining the pool near 3,600 ppm salinity.

Why has the cell stopped producing chlorine in cold water?

The Plus30 automatically stops chlorine production when the water temperature falls below approximately 52°F. An alternative chlorination method may be required until the water warms.

Can the cell be cleaned with a pressure washer?

No. High-pressure water and mechanical tools can damage the blade coating. Use the maintenance procedures approved by Pentair.

Important Safety Information

Never energize the salt chlorine generator unless the pool pump is operating and sufficient water is flowing through the cell. Improper wiring or operation without flow can result in chlorine gas accumulation, equipment damage, serious injury, or death.

Disconnect power to the pool pump, power center, automation system, and salt cell before installation or service. Completely relieve filter pressure before opening or modifying pool plumbing.