Product Overview

The Hayward CAT 2000 Professional Package | CAT-PP2000 is a commercial-grade automated water chemistry control system designed to continuously monitor and control pH and sanitizer activity (ORP) in swimming pools, spas, fountains, and commercial aquatic facilities.

The CAT 2000 uses professional-grade pH and ORP sensors to continuously analyze water chemistry. When readings move away from programmed setpoints, the controller automatically activates compatible chemical-feed equipment in proportion to demand, helping maintain consistent water quality while reducing manual chemical adjustments.

The Professional Package upgrades the standard CAT 2000 configuration with a machined acrylic flow cell and rotary flow sensor, providing a durable, professional installation for demanding commercial aquatic applications.

Automated pH Control

The Professional Series pH sensor continuously samples the circulation water and sends pH readings to the CAT 2000 controller.

When the pH moves outside the programmed setpoint, the controller can automatically activate compatible acid or base chemical-feed equipment until the desired chemistry is restored.

The factory control platform is designed around the ideal commercial pool pH range, with programmable adjustment available for individual applications.

ORP Sanitizer Control

The CAT 2000 uses oxidation-reduction potential (ORP) to monitor sanitizer activity.

Rather than simply measuring the amount of chlorine present, ORP indicates the oxidizing effectiveness of the sanitizer in the water. The controller can activate compatible chlorine, bromine, or salt-chlorination equipment when additional sanitizer is required.

This provides demand-based chemical control instead of relying solely on timed chemical feeding.

Key Features

Automatic pH and ORP monitoring and control

Commercial-grade microprocessor-based controller

Advanced proportional chemical-feed control

Professional Series pH sensor

Professional Series ORP sensor

Machined acrylic flow cell

Rotary flow sensor

CNC-machined PVC mounting backboard

Bright LED digital display

Adjustable pH and ORP setpoints

Compatible with chlorine and bromine chemical-feed systems

Compatible with salt chlorine generation systems

Dry-contact outputs for salt chlorine generator integration

Acid or base pH-feed capability

High and low pH alarms

High and low ORP alarms

Flow-loss protection

pH priority-feed capability

Supplemental sanitizer-feed modes

Chemical overfeed timeout protection

pH interlock capability

RS232 serial communication interface

Remote alarm dry-contact output

Factory settings stored in memory

NSF/ANSI Standard 50 certified

Designed for commercial pool and aquatic applications

Benefits

Professional Package Advantage

The primary difference between the CAT 2000 Standard and Professional packages is the water-sampling and flow-monitoring assembly.

CAT 2000 Professional Package – CAT-PP2000:

• Machined acrylic flow cell
• Rotary flow sensor
• Professional Series pH and ORP sensors
• PVC mounting backboard

CAT 2000 Standard Package – CAT2000:

• Injection-molded flow cell
• Float-style flow sensor
• pH and ORP control platform

The CAT-PP2000 Professional Package is an excellent choice for commercial installations where a more robust flow-cell assembly and professional rotary flow monitoring are preferred.

Specifications

What's Included

The CAT-PP2000 Professional Package includes:

• Hayward CAT 2000 water chemistry controller
• Professional Series pH sensor
• Professional Series ORP sensor
• Machined acrylic flow cell
• Rotary flow sensor
• CNC-machined PVC mounting backboard
• Installation hardware
• Required sensor and flow-cell components
• Installation and operation documentation

Chemical-feed pumps, chemical storage tanks, CO₂ systems, and salt chlorine generators are sold separately unless otherwise specified.

Warranty & Compatibility

Safety & Protection Features

The CAT-PP2000 incorporates multiple safeguards for commercial chemical automation, including:

• High pH alarm
• Low pH alarm
• High ORP alarm
• Low ORP alarm
• Flow alarm
• pH priority feed
• pH interlock
• Supplemental feed modes
• pH overfeed timeout
• ORP overfeed timeout
• Manual feed modes
• Remote alarm capability

The flow-monitoring system helps prevent chemical feeding when proper sample-water flow is not present.

Chemical Feed Compatibility

The CAT 2000 can interface with a variety of compatible chemical-feed equipment, including:

• Liquid chlorine feeders
• Sodium hypochlorite feed systems
• Bromine feeders
• Acid-feed pumps
• Base-feed pumps
• CO₂ pH-control systems
• Salt chlorine generators
• Commercial chemical metering pumps

Actual chemical feeders and tanks are selected separately based on the pool size, sanitizer system, chemical demand, and facility requirements.

Customer-Facing Q&A

Q: What does the CAT-PP2000 control?
A: The CAT-PP2000 automatically monitors and controls pH and ORP/sanitizer activity by operating compatible external chemical-feed equipment.

Q: What makes CAT-PP2000 the Professional Package?
A: The Professional Package includes a machined acrylic flow cell and rotary flow sensor instead of the molded flow cell and float-style sensor supplied with the Standard Package.

Q: Does CAT-PP2000 include pH and ORP sensors?
A: Yes. The Professional Package includes Hayward Professional Series pH and ORP sensors.

Q: Does it include chemical-feed pumps?
A: No. Chemical-feed pumps, tanks, CO₂ systems, and chlorine generators are generally sold separately and selected according to the installation.

Q: Can CAT-PP2000 control a salt chlorine generator?
A: Yes. The controller provides dry-contact outputs designed for integration with compatible salt chlorine generation equipment.

Q: Does the CAT 2000 display chlorine PPM?
A: The CAT 2000 primarily controls sanitizer based on ORP measured in millivolts, rather than directly measuring free-chlorine PPM.

Q: Is CAT-PP2000 NSF certified?
A: Yes. The CAT 2000 control system is listed to NSF/ANSI Standard 50.

Q: What is the warranty?
A: Hayward specifies: Controller: 5-Year Limited Warranty; Sensors: 2-Year Warranty; Wearable Items: 1-Year Warranty. Warranty coverage is subject to Hayward's current commercial warranty requirements and installation conditions.