Acl Low; Acl High - Zodiac TRiPRO Notice De Montage

 Possible causes :
The pH minus container is empty.
pH sensor needs to be cleaned and calibrated.
pH sensor is faulty.
Selected pool size setting is too low
The peristaltic pump is defused.
 Solutions :
- Replace the pH minus container if it is empty.
- Clean, then calibrate the pH sensor (see chapter 8 / 'pH & ACL sensors cleaning' and 4.1 / 'pH sensor
calibrating procedure').
- Check the pool size setting (see chapter 4.3 / 'Setting the pool size').
- Check the peristaltic pump operation (see chapter 3.8 / 'Testing / Priming the peristaltic pump').
 Hold the (SELECT) button for 3 seconds to erase an error code (when it blinks).

10.4/ 'ACL LOW'

 Meaning :
Water disinfectant poser is too low (ACL). Free chlorine level into pool's water is probably too low. A
manual free chlorine analysis should be done before proceeding.
 Possible causes :
Water pH is too high.
Total alkalinity (TAC) is too low, which means an unstable pH.
ACL set point is too low.
A high bather load has generated a high chlorine demand.
ACL sensor needs to be cleaned and calibrated.
ACL sensor is faulty.
 Solutions :
- Manually check the pH value to be sure that pH regulation operates correctly.
- Check total alkalinity (TAC) and adjust it if necessary (see chapter 7 / 'Water balance').
- Increase the ACL set point (see chapter 4.5 / 'ACL set point ').
- Clean, then calibrate the ACL sensor (see chapter 8 / 'pH & ACL sensors cleaning' and 4.1 / 'pH sensor
calibrating procedure').
- Replace the ORP 700 mV buffer solution, then calibrate the ACL sensor.
- If necessary, replace the ACL sensor.

10.5/ 'ACL HIGH'

 Meaning :
Water disinfectant poser is too high (ACL). Free chlorine level into pool's water is probably too high. A
manual free chlorine analysis should be done before proceeding.
 Possible causes :
Water pH is too low.
Total alkalinity (TAC) is too low, which means an unstable pH.
ACL set point is too high.
Swimming pool has been covered and/or unused during a long period (cover, shelter, cold climate...).
ACL sensor needs to be cleaned and calibrated.
ACL sensor is faulty.
 Solutions :
- Manually check the pH value to be sure that pH regulation operates correctly.
- Check total alkalinity (TAC) and adjust it if necessary (see chapter 7 / 'Water balance').
- Decrease the ACL set point (see chapter 4.5 / 'ACL set point ').
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