By CAT Controllers, Inc.



Part # W3CATPP2000

Warranty 5 Year

Alternate Part #'s HAYW3CATPP2000

Product Description

The CAT 2000 Professional Package is a complete, factory-assembled automation system which includes a CAT 2000 controller, Professional Series sensors, machined acrylic flow cell, rotary flow sensor and PVC backboard.

The CAT 2000 Professional Package automated controller is the water quality solution for pools, spas, waterparks and a multitude of other water treatment applications world-wide.

The powerful microprocessor-based design makes simple science of water chemistry maintenance under even the most challenging conditions. Constantly monitoring pH and sanitizer activity (chlorine, bromine, even salt systems) and implements chemical dosing in proportion to demand.  This proportional feed capability ensures precise water conditioning without overfeeding.

And for superior bacteriological water quality, CAT controllers operate utilizing the Oxidation-Reduction Potential (ORP) method of water analysis.  ORP is the only reliable method proven to ensure rapid deactivation of such waterborne pathogens as E. Coli in swimming pool water.

With the power to meet the demands of virtually any application, the price to please the fiscally conscious, and the simplicity to assure success in the field, the CAT 2000 is the no-compromise solution to your water chemistry control requirements..

The CAT 2000 is compatible with existing chemical feeding equipment, and is shipped complete with sensors, installation hardware, and a comprehensive installation and operation guide.


  • Digital, microprocessor-based design with flash technology
  • Advanced Control Features including proportinal feed
  • Weatherproof membrane switch front panel interface
  • All factory settings are permanently stored in memory
  • Simple installation, setup and operation
  • Compatible with all types of chemical feed equipment
  • Dry-contact outputs provided for salt-chlorine systems
  • Profession Series sensors with Teflon reference junctions
  • 5 year manufactures warranty


Display Range pH 1.0 - 9.95
ORP 5 - 995 mV
Setpoint Range pH 7.0 - 8.0
ORP 200 - 995 mV
Control Accuracy pH +/- 0.1 pH
ORP +/- 5.0 mV
Mode Selections pH Automatic / Off / Manual
Proportional or Direct Feed
ORP Automatic / Off / Manual
Proportional or Direct Feed
pH Feed Acid or Base Feed
pH Mode Auto / Set / Calibrate
ORP Mode Auto / Set
Safety Systems pH Audible / Visual Safeguard Alarms
Adjustable Overfeed Timer
pH Priority Control
ORP Audible / Visual Safeguard Alarms
Adjustable Overfeed Timer
Controller Unit Diagnostic Self-Test
Required Rotary or Pressure Flow Sensor
Optional Remote Alarm
Outputs pH Feed 4 Amp, 120/230 VAC
4 Amp, Dry Contact
ORP Feed 4 Amp, 120/230 VAC
4 Amp, Dry Contact
Remote Alarm 4 Amp Dry Contact
Serial RS232 Serial Interface
Power Requirements USA 15 Amp, 120 VAC 60 HZ
International 10 Amp, 230 VAC 50/60 HZ

Product Specifications

Profession Series sensors w/ Teflon Junctions

?     Asked on 5/13/2019by Boy Scouts of America

Have a cat 2000 controller. Problem PH pump won't run in Auto or Manual. Tested Pump runs on extension cord, tested with meter fuses have continuity, Tested no power at terminal block in Auto or Manual. Tested unplug PH probe dropped reading to .3 plug probe back shows 7.4.. Ideas on the problem?

A  Answered on 10/15/2019 by InyoPools Product Specialist Steve M.

We apologize for the inconvenience, however, we are not certified by Hayward to troubleshoot this system. We suggest speaking to them directly. You can call them at 800.429.9273.