D i s in f e c t i on
The equipment is compatible with all types of water disinfection. Disinfection can be with or without chemicals.
Disinfection Control
3.6.4.1.1 Controlled by ORP
ORP control is available for controlled disinfection. A sensor is required to perform the control. The water condition sensor type varies,
depending on the chemical method used for treatment.
Treatment Option
pH + liquid chlorine injection; chlorine or bromine tablets
pH + salt water system
pH+ORP sensor is required, correctly installed as per 3.6.2 Installing the Water Condition Sensor.
Dosing is only commanded during programmed filtration cycles. Dosing will start 30 minutes after start of a filtration cycle.
Proportional-integral control logic allows for very safe operations and avoids the risk of overdosing.
If "chlorine" or "bromine" disinfection algorithm is chosen, maximum possible time assuming filtration is running continuously
will be 11 hours 50 minutes.
If "salt" (for salt water chlorinator) disinfection algorithm is chosen, maximum possible time assuming filtration is running
continuously will be 19 hours 40 minutes.
The relay AUX 6 is protected and injection will be stopped in the case of loss of flow, loss of pressure, pump off securities,
etc. for safety.
If required, disinfection can be stopped due low water temperature (useful to ensure chlorinator cell life).
If necessary, disinfection can be temporarily suspended when pH is on alert (low or high), giving priority to pH control. See
5.4.2 pH Control. This feature is only operational when disinfection is based on ORP only, not when FAC is in Control mode.
An alert that the control is inefficient will be generated if:
ORP does not increase after 20 successive injections (algorithm "Chlorine" or "Bromine").
•
ORP does not increase after 5 successive production cycles (algorithm "Salt").
•
As a security, if the measured ORP is out of limits (lower than 100mV or higher than 990mV) for more
As soon as the ORP re-enters the range 100mV to 990mV, injection may restart.
Configure ORP control in the
Always wear correct chemical resistant hand protection when handling chemicals.
Always wear correct eye protection when handling chemicals.
ORP measurement and control is not compatible with copper/silver ionization.
than approximately 40 minutes, ORP control is stopped and an Alert is displayed.
WATER AND TREATMENT
P o o l C o p E v o l u t i o n M a n u a l : E V 4 4 M A N U S
WEAR HAND PROTECTION:
EYE PROTECTION:
Sensor Required
pH+ORP Pt Sensor kit
pH+ORP Au Sensor kit
NOTE:
NOTE:
menu, program
ORP CONTROL
Sensor Reference
SO4902
SO4903
(See 5.4.3).
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