User manual

 Solutions:
- Clean then calibrate the pH sensor (see chapter 8 / ‘pH & ACL sensors
cleaning’ and 4.1 / ‘pH sensor calibrating procedure’).
- Replace the pH 7,5 buffer solution, then calibrate the pH sensor.
- Check the selected value for pH set point.
- Check the pool size setting (see chapter 4.3 / ‘Setting the pool size’).
- If necessary, replace the pH sensor.
10.3/ PH ERROR
 Meaning:
- The peristaltic pump of the TRi PRO module has operated for full dosage
cycles without achieving the defi ned set point (displayed on the LCD screen).
- The peristaltic pump of the TRi PRO module has not operated since more
than 72 hours.
 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
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.
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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 ‘).
- 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.
10.6/ ACL ERROR
 Meaning:
- TRi PRO salt water chlorinator has produced chlorine for more than 30
cumulative hours without reaching the ACL set point (displayed onto LCD
screen).
- TRi PRO salt water chlorinator has not operated for more than 30 cumulative
hours.
 Possible causes:
Water pH is not correct (too high or too low).
Total alkalinity (TAC) is too low, which means an unstable pH.
Unsuitable chlorine generation regarding to pool’s chlorine demand (wrong
ACL set point).
ACL sensor needs to be cleaned and calibrated.
ACL sensor is faulty.
TRi electrode is scaled or worn (chlorine generation too low).
 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’).
- Adjust 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.
- Check TRi electrode (see TRi salt water chlorinator user manual)
 Hold the
button for 3 seconds to erase an error code (when it blinks).
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