Hayward CAT-2000 Support Question
Hayward CAT-2000 Support Question
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Question posted by lemboet on February 1st, 2022
Ph Readings Bounce Up And Down. Don't Stay Constant
We have a Cat 2000 controller installed for pool water balance control.We use liquid chlorine and Co2 for ph control. The pH reading bounce from 7.2 to 7.7 all the time.lately I have raised the alkalinity level to 120 ppm try to solve the issue but unfortunately it is doing the same.Can some advise or help me with this issue ??
Current Answers
Answer #1: Posted by SonuKumar on February 2nd, 2022 7:25 AM
SonuKumar
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May 9th, 2021 Points: 16,667,050
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May 9th, 2021 Points: 16,667,050
Troubleshooting Section 12.
https://www.hayward-pool.com/assets/documents/pools/pdf/manuals/HCC-Manual-CDR7.pdf
Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful.
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Sonu
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Related Hayward CAT-2000 Manual Pages
CAT 2000 - Page 2
... pumps, heaters, etc.
ALL RIGHTS RESERVED need to be used to answer any filtration system component, all tools required before beginning installation. Remember that your new CAT controller is located below water level, additionally adjust all valves required to eliminate pressure from the CAT 2000 line of automated controllers should have the tools and knowledge to perform the...
CAT 2000 - Page 4
...CAT AUTOMATED CONTROL
CONTENTS COPYRIGHT 2010 HAYWARD INDUSTRIES, INC. The CAT 2000 continuously monitors pH and sanitizer activity, constantly adjusting the feeding of chemical usage and costs. CHEMICAL AUTOMATION WITH THE CAT 2000
A pool operator typically checks and adjusts pool or spa water chemistry hourly at best. The following graph (Illustration 1.) compares typical chlorine levels...
CAT 2000 - Page 5
..., corrosion of chemical residual levels.
The CAT 2000 controller unit scans and interprets the signals from the pH and ORP probes, displays water quality readings in digital format, and activates chemical feeders in a typical CAT 2000 controller system:
The Professional-Series pH Sensor samples water from the factory to the pool or spa surface can occur. If pH is preset from the filtration...
CAT 2000 - Page 8
... 5. Thread sensors into the sample stream port.
7. C. Drill and tap a 1/4" NPT port at a location subject to a successful flow cell installation is required to allow clean, untreated water to create a pressure-suction "loop" line.
1.
D. Securely mount Controller or PVC Backboard on vertical wall.
4. Cut a 3" to pool or spa operator.
ALL RIGHTS RESERVED
CAT 2000 - Page 9
...
CAT CO2 or
pH Control
Flow Cell / Flow Sensor Bypass Line Flow
Solenoid
Flow
WASTE
or Erosion Feeder
Solenoid
PUMP
FILTER
RETURN LINE
Flow
ALL CHEMICALS MUST BE INJECTED DOWN STREAM FROM HEATER & FLOW CELL
Pressure Differential Resume filtration system operation and check for future use. never cut or splice.
10. CAT 2000 INSTALLATION DIAGRAM WITH FLOWCELL
pH Sensor
CAT 2000...
CAT 2000 - Page 10
...or bypass inlet valve.
8. INSTALLATION WITH BYPASS LINE
CAT recommends the use of a bypass line should only be performed by experienced technicians familiar with the procedures for all recreational water applications.
Construction of a CAT Flowcell and Rotary Flow Sensor for plumbing with flexible tubing and Tru-seal connectors. Securely mount the CAT 2000 controller on bypass inlet and...
CAT 2000 - Page 11
...the filtration system and check for future use . NOTE: Sensor cables are to the controller unit as labeled.
16. Connect chemical feeders to the controller unit as labeled. CAT 2000 INSTALLATION DIAGRAM WITH BYPASS LINE
CAT 2000
CAT 2000 CONTROLLER
Chemical Pump
pH Sensor Sensor Adaptor
ORP Sensor Sensor Adaptor
Chemical Pump
CAT CO2 or
pH Control
Solenoid Flow Cell / Flow Sensor...
CAT 2000 - Page 12
... CAT water quality controllers maintain sanitizer levels (chlorine, bromine, ozone, etc.) based on and setting up the CAT 2000. TEST
pH
MINIMUM
7.2
Free Chlorine (PPM)
1
Bromine (PPM)
2
Cyanuric Acid (PPM)
0
ORP (mV)
650
Total Alkalinity
80
Calcium Hardness
200
IDEAL
7.5 2 3 - The ORP setpoint will need to be tested and adjusted prior to initiating automated control of the pool...
CAT 2000 - Page 13
... causes the pH to automatically maintain pH and sanitizer levels. Button designations appear in the acid feed mode (when pH exceeds the setpoint, the pH chemical feeder is preset from most liquid test standards. SETTING AND OPERATING THE CAT 2000
Once desired start up chemistry parameters have been established, you must select base feed mode. SECTION 8. The controller will...
CAT 2000 - Page 14
... to meet Health Department standards for a particular pool or spa, the ORP setpoint may be changed to maintain a desired sanitizer level by the controller. 3. The chemical feeder will automatically return to the normal operating mode after twenty seconds, storing any changes. Changing the pH Setpoint The CAT 2000 is the level you wish to maintain.
2.
CONTENTS COPYRIGHT 2010...
CAT 2000 - Page 15
... the pH Channel Mode Selection Button (#5) until the red "OFF" LED is highly valuable in maintaining precise control of the ORP chemical feeder press the ORP Channel Mode Selection Button (#9) until the green "AUTO" LED is illuminated. This feature is illuminated. About Proportional Feed The CAT 2000 features an advanced proportional feed algorithm which constantly...
CAT 2000 - Page 17
... the prompt on , the controller displays the pH feed mode and firmware version number. Enhanced No-Flow Alarm The no Flo
Power On Display At power on the LED displays, in addition to make a selection. SECTION 9. Advanced (Dealer) Setup Options
Beginning with the 2008 model year, the CAT 2000 controller incorporates an advanced programming menu...
CAT 2000 - Page 19
... be reset if the controller is indicated. The pH feed output will resume automatically when the measured pH value returns to within the non-alarm range.
6.8 Use the UP and DOWN buttons to the off and then back on continuously for a period of time. 15 Minutes. 30 Minutes. 60 Minutes (1 Hour). 120 Minutes (2 Hours). 180 Minutes...
CAT 2000 - Page 20
... control.
CONTENTS COPYRIGHT 2010 HAYWARD INDUSTRIES, INC. OFF
Off. The ORP overfeed alarm will resume automatically when the measured pH value returns to within the non-alarm range.
8.2 Use the...if the controller is turned on continuously for the overfeed time limit, rather than the pH alarm low value.
When Off is turned off and then back on for the pH channel. ...
CAT 2000 - Page 21
...automatically when the measured ORP value returns to within the non-alarm range.
525 Use the UP and DOWN buttons to place the ORP channel in the manual feed state...controller operating parameters to select a value between 200 and 995
pH. ORP Overfeed Timer -
The value must be cleared and feed will remain on for an unlimited amount of time. 15 Minutes. 30 Minutes. 60 Minutes (1 Hour). 120...
CAT 2000 - Page 23
... green LED is illuminated whenever the controller is outside of the various LED indicator lights on . SECTION 10.
Setpoint adjustment is allowed only when this red indicator is accompanied by an audible alarm and indicates that pH is in the pH setpoint adjustment mode. Calibration of the pool or spa water (as calibrated) passing through the...
CAT 2000 - Page 26
MAINTENANCE
CAT 2000 CONTROLLER The CAT 2000 controller unit is important to note that changes in need of the enclosure, front panel and flow cell can be used to calibrate pH using a quality manual test kit. Cleaning of cleaning.
To maintain a consistent sanitizer residual in pool or spa water, the sensors may also be performed using a clean, soft cloth moistened with a soft tooth ...
CAT 2000 - Page 27
... conditions will cause the sensor tips to storing or transporting the CAT 2000 controller unit. CONTROLLER STORAGE The controller unit is filled with the original storage solution or clean water. WINTERIZATION The sensors should be protected from freezing temperatures. SENSOR REPLACEMENT CAT Professional Series pH and ORP sensors are freeze-resistant, they must be drained prior...
CAT 2000 - Page 28
... adequate, and water chemistry is selected. 3. Check chemical feeders for damaged power cord or connector. Ensure that sensors and power cables are properly connected to the highest quality standards and then thoroughly tested before leaving the factory. Make sure "auto" pH feed mode is in balance. 2. TROUBLESHOOTING
Each CAT 2000 controller is in balance. Both pH and ORP...
CAT 2000 - Page 29
... frequent calibration. 1. pH or ORP readings are properly connected to the pool or spa. 2. pH or ORP feeding overshoots the setpoint. 1. If sensors continue to provide unstable readings after cleaning, replace sensors.
pH, cyanuric acid concentration, total dissolved solids, and use of any chemicals recently added to their respective BNC connectors on the controller unit. Check and...
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