Sterilor Sel User manual

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AUTOMATIC SALT ELECTROLYSIS WATER TREATMENT SYSTEM
Installation
Instructions
&
User Guide
Please read carefully and keep available for later use
Version 11/2013
SR-12-163-4GB
STÉRILOR Sel

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FOREWORD
Dear Sir/Madam,
You have chosen an automatic STERILOR Sel electrolyser.
We would like to thank you for the confidence that you have placed in us.
Please keep this user guide in a safe place.
It will be your guide for a long time for optimised installation
and operation of all of the equipment for your new electrolyser.
Read it carefully before use in order to fully benefit from all of its functions.
By using STERILOR Sel with a pH that is well regulated around 7, your pool's water will be perfectly
disinfected.
You can regulate your pH manually or automatically,
by having a STERILOR pH installed.
USEFUL ADDRESS
Your local retailer (stamp):

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CONTENTS
1. GENERAL RECOMMENDATIONS................................................................................................................6
2. PRESENTATION..........................................................................................................................................7
2.1 General description ............................................................................................................................7
2.1.1 Operation....................................................................................................................................................7
2.1.2 Supply..........................................................................................................................................................7
2.1.3 Front side of the box...................................................................................................................................8
2.1.4 Lateral sides of the box...............................................................................................................................9
3. INSTALLATION ...........................................................................................................................................9
3.1 Control box ...................................................................................................................................................... 10
3.1.1 Location-attachments.............................................................................................................................. 10
3.1.2 Location.................................................................................................................................................... 10
3.1.3 Electric connections................................................................................................................................. 10
3.2 Electrolysis cell ................................................................................................................................................ 12
3.3 Cover Connection or Servocontrol .................................................................................................................. 12
3.4 Flow rate detector........................................................................................................................................... 13
4. USE...........................................................................................................................................................14
4.1 Memo .............................................................................................................................................................. 14
4.1.1 pH............................................................................................................................................................. 14
4.1.2 Chlorine.................................................................................................................................................... 14
4.1.3 Salt ........................................................................................................................................................... 14
4.1.4 Stabiliser................................................................................................................................................... 15

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4.2 Production setting ........................................................................................................................................... 15
4.2.1 Displaying and adjusting the production ................................................................................................. 15
4.2.2 Production percentage setting procedure............................................................................................... 15
4.3 Automatic Operation or Forced Operation..................................................................................................... 16
4.3.1 Display –Operating the Forced operation............................................................................................... 16
4.3.2 Forced Operation activation and deactivation procedure ...................................................................... 16
4.4 Change in polarity............................................................................................................................................ 16
4.4.1 Displaying the change in polarity............................................................................................................. 16
4.4.2 Operating the change in polarity ............................................................................................................. 16
4.5 Displaying device operating time and hours................................................................................................... 17
4.6 Cover servocontrol –Slow mode .................................................................................................................... 17
4.6.1 Displaying and operating the Slow Mode................................................................................................ 17
4.6.2 Manual setting of the production percentage with the cover in closed position ................................... 18
4.7 Servocontrol to a chlorine analysis ................................................................................................................. 18
4.8 Displaying the diagnoses ................................................................................................................................. 19
5. WINTERISATION ......................................................................................................................................20
6. EARTHING SLEEVE ...................................................................................................................................20
7. UPKEEP INSTRUCTIONS ...........................................................................................................................21
8. STORAGE –TRANSPORT..........................................................................................................................21
9. TECHNICAL CHARACTERISTICS ................................................................................................................22
10. GUARANTEES.........................................................................................................................................22
GUARANTEE CARD.......................................................................................................................................23

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1. GENERAL RECOMMENDATIONS
For correct operation of the device:
Read this instruction manual carefully and completely before using your STERILOR Sel. Do not open
the device, only a skilled technician is authorised to do so.
Check the safety of the device: Make sure that the voltage supplied by your mains power supply
complies with the characteristics repeated in Paragraph 9.
The STERILOR Sel device must operate at the same time as the filtration system, because the water
must absolutely flow in the electrolysis cell.
When adding salt for the first time in the pool, or on each addition, the box and STERILOR Sel must
be switched off for 24 hours, so that the salt is totally dissolved.
The device must be stopped as soon as the water temperature falls below 15 °C.
Effectively, at this water temperature, the titanium electrodes coated with precious metal oxides
produce more o x y g e n and hydrogen than chlorine.
Definition of the synoptics used in these instructions:
Important information
Sensitive point, recommendation to be followed to avoid any equipment damage
or operating problem
Electrical risks, any operations relating to connections or tests may only be carried
out by authorised persons
Earthing mandatory

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2. PRESENTATION
2.1 General description
STERILOR Sel devices automatically
produce Chlorine in the form of Sodium
Hypochlorite ( bleach ) , through salt water
electrolysis between 4 and 5 g/litre.
By maintaining a balanced pH around 7
(neutral pH), and a good level of stabiliser of
the chlorine (30 to 50 mg/l), the waterin your
swimming pool will be perfectly treated
throughout the year without the
unpleasantness of a conventional chlorine
treatment (odours, storage and handling).
2.1.1 Operation
The automatic STERILOR Sel system
operates on the principle of salt water
electrolysis.
Thanks to its microprocessor, STERILOR Sel
controls the emission of a low voltage electric
current towards an electrolysis cell placed on
the backflow of the filtration circuit (after any
analysis electrode as well as any booster
compressor or heat pump, or heating outgoing
cable).
This cell contains several electrodes made
of t i t a n ium and specially treated with
precious metal oxides, in order to withstand
changes in polarity of the production current
and better exchanges between the plates.
The pool water with a very low salt content (4 to 5
g/l), passes into the electrolysis cell and
transforms into sodium hypochlorite
( Bleach ) , which is a powerful steriliser.
STERILOR Sel therefore prevents you from
having to add chlorinated products. All you
have to do is maintain the water's pH between
6.9 and 7.4.
STERILOR Sel is compatible with a l l
current swimming pool liners, and it adapts to
any existing or new filtration systems.
Warning:
Salt is incompatible with metal filtration
systems.
When adding salt to the pool for the first time
or during each subsequent addition, STERILOR
Sel must be switched off for at least 24 hours,
and total dissolution of the salt must be
validated before starting or restarting the
device.
The advantages of STERILOR Sel:
Automatic water treatment
Sterilised and sterilising water
A change of polarity in the production current
which reduces the formation of scale on the
electrodes
Backlit digital display of the production
percentage, device operating times and
countdown of the change of polarity time
A configurable Slow mode function for
swimming pools equipped with covers
A device that can be adapted to all swimming
pools
2.1.2 Supply
This device is supplied with all equipment
necessary for its installation and use. This kit
includes:
A control box with a pre-wired power
supply cable.
An electrolysis cell with its electrode and
cable equipped with quick connectors.
A connecting cable to servocontrol either in
Slow mode or Cover mode for swimming pools
equipped with contact covers or to
servocontrol with a chlorine measurement
A blade flow sensor.
+ A salt analysis kit
+ Installation and user instructions
+ Guarantee form

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2.1.3 Front side of the box
Function keys:
A Automatic operation setting (see p. 15)
F Force operation setting (see p. 15)
P Production setting (see p. 15)
H Time setting (see p. 17)
Lights and display:
Display of the diagnoses
Chlorine production display
between 140 and 200%
Chlorine production display
between 70 and 135%
Chlorine production display
between 0 and 65%
Display of device operating time
Time display
Display of polarity and countdown of
the polarity
Forced Operation indicator
Automatic Operation indicator
Swimming
pool inflow
Swimming
pool
backflow
Earth towards
separate earthing
rod
Towards drains
Towards booster
compressor
heating, robot
Filtration
box
pH-liquid
injection
¾ salt electrolysis
cell installed
STERILOR Sel
GENERAL PRESENTATION OF THE INSTALLATION OF A SWIMMING POOL TECHNICAL ROOM
STEREDOX
control dry
contact
Dry contact:
Slow mode or
Cover mode
control
Filter

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2.1.4 Lateral sides of the box
Left side Right side
3. INSTALLATION
For any swimming pool covered with a
polyester, paint or silico-marble liner, the
installation of an EARTH is recommended (see
"Earth" paragraph).
The installation of STERILOR Sel on a
swimming pool treated beforehand with
PHMB (polyhexamethylene biguanide)
requires the pool to be completely emptied
and the filter to be rinsed thoroughly, it is also
advisable to replace the sand.
Connectors –electrolysis cell cable
General power supply fuse holder
T 3.15 A
"ON/OFF" switch of the device
Connection
Cover or Servocontrol
Connection
Flow rate sensor
Swimming
pool inflow
Swimming
pool
backflow
Earth towards
separate earthing
rod
Towards drains
Towards booster
compressor
heating, robot
Filtration
box
pH-liquid
injection
¾ salt electrolysis
cell installed
STERILOR Sel
GENERAL PRESENTATION OF THE INSTALLATION OF A SWIMMING POOL TECHNICAL ROOM
STEREDOX
control dry
contact
Dry contact:
Slow mode or
Cover mode
control
Filter

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3.1 Control box
Dimensions:
Width 250 x Height 340 x Depth 150 mm
3.1.1 Location-attachments
STERILOR Sel
3.1.2 Location
The electronic box must be installed in the technical room protected from sunlight, bad weather and close
to the electrolysis cell (2.5 m cable).
The controls of the box (switch, electrode connection and fuse holder) must remain accessible.
Fix the box securely against a wall via the 4 fixing holes using the screws and plugs supplied.
Necessary equipment:
-Drilling machine and 6 mm drill bit suitable for the support, plugs supplied = plastic expansion plugs (to be
adapted to the support if necessary).
-Phillips screwdriver.
3.1.3 Electric connections
The system operates in parallel with the filtration pump.
It must operate at the same time as the filtration system. A box continuously connected to a separate
socket will annul the guarantee.
Before carrying out any electrical work on the box, this connection requires STERILOR Sel's power
supply to be cut off at the filtration box.
The connection is therefore made on the filtration pump contactors in the existing filtration box,
according to the following diagram:
¾ salt electrolysis
cell installed

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Single-phase filtration box:
Three-phase filtration box:
STERILOR Sel
STERILOR Sel
MONO
Auto Op.
Forced Op.
Circuit breaker
Contactor
Clock
NEUTRAL
PUMP
EARTH
Auto Op.
Forced Op.
Circuit breaker
Contactor
Clock
NEUTRAL
PUMP
EARTH
380 V THREE-PHASE

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3.2 Electrolysis cell
Dimensions:
Length 275 Height 180 mm Depth 152 mm.
Each cell has two PVC end fittings with
inside diameter of 50 and outside diameter of
63. These end fittings must be affixed to the
by-pass on the filtration circuit using PVC glue.
Assemble the electrolysis cell in by-pass as
shown in the diagrams above with three
valves, on the backflow circuit (return to the
swimming pool), after the filter, after any
analysis electrode and any booster
compressor or heating outgoing cable.
However, the cell can be assembled without
by-pass on installations with a pump with
power below 1 hp.
Warning, the bypass valves must be open to
allow the water to pass through the
electrolysis cell before STERILOR Sel is started
up.
The electrolysis cell must be under a flow of
water when STERILOR Sel is operating.
The cell should preferably be installed
horizontally, at 45° towards the top. This
orientation ensures the evacuation of water
that may appear on the cap (condensation,
splashing, etc.)
Effectively, the electrode connectors must not
be in contact with water. Non-compliance
with this guideline may result in premature
corrosion of the connectors and premature
deterioration of the cell.
Titanium electrodes coated with precious
metal oxides:
Place the electrode with its seal in the
electrolysis cell.
Rotate it on its support to wedge it correctly
so that the water circulates between the
electrode's plates as indicated on the diagram
below.
The water must flow between the electrode's
plates. The flow of pool water must arrive on
the section of the plates and not opposite the
plates.
Electrode connections Connect the cable
provided for this purpose to the box, quick
connectors.
3.3 Cover Connection or Servocontrol
Connection:
Quickly connect the connector to the
left-hand lateral connector provided for this
purpose, see point 2.1.4. (Important: this
contact must absolutely be a dry contact - not
connected to the power supply)
Orientation
of the cell
45° from the
vertical

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3.4 Flow rate detector
STERILOR Sel is equipped with a blade flow
detector. It detects the loss of flow before the
electrolysis cell and stops the production (and
therefore the electrolysis).
It is therefore an additional safety device that
must be installed as close to the electrolysis cell as
possible and on the cell's water inlet. No valves,
check valves or other separation elements must be
inserted between these two devices.
This detector is equipped with a blade
installed perpendicular to the water flow. When the
flow rate is sufficient it pushes the blade, therefore
low flow is no longer detected. When the flow
reduces too much or is stopped, the blade goes
back to its initial position and the loss of flow is
detected.
The sensor only works in one direction, so it is
important to respect the arrow indicating the
sensor's direction of flow. For correct position of
the blade, the arrow must be parallel to the piping
and respect the pool water's direction of flow.
It can be assembled on a horizontal or
vertical pipe. Vertically, the flow rate must be as
high as possible to deactivate the loss of flow
information.
Be careful, to allow the movement of the
blade, a 24 mm diameter hole must be made in the
tube before positioning the saddle tee. To ensure
the watertightness of the saddle tee, mark out the
position of the saddle tee on the tube before
installation to ensure that it is centered on the hole
produced.
Detector connections: Connect the quick
connector to the right-hand side
connector provided for this purpose.
Pool Water Direction of Flow
Pool Water Direction of Flow
Position (H)/Pool
water's direction of
flow (lateral view):
Position
Blade perpendicular
to the pipe (top view):
Position (V)/Pool
water's direction of
flow (lateral view):
Flow rate
detector
Flow rate
detector
Flow rate
detector
Pool Water Direction of Flow
a
a
Position
Saddle tee perfectly
centred on the D24 mm
hole produced in the
tube:
WARNING: DO NOT AFFIX to an ELBOW or T-
FITTING as hydraulic turbulences could trigger it
inadvertently. Allow a minimum of 100 mm
Pre-wired flow rate
sensor:
Indication of the
direction of flow:
Flow rate
detector

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4. USE
4.1 Memo
Carefully check the quality of the water in your
swimming pool. Carry out the recommended
manual analyses on a regular basis.
Every time the device is used, carry out
the following analyses:
Analyses to be
carried out
Ideal level
pH
6.9 to 7.4
Active chlorine
0.3 mg/l (ppm)
Salt
5 g/l or 5 kg/m 3
Stabiliser
30 to 50 mg/l (ppm) maximum
if REDOX level max. 25 ppm
Operate the filtration system during the day
rather than at night. The proliferation of
micro-organisms occurs during the day.
Water
temperature
Daily filtration time
< 10 °C
1 to 3 hours
10 to 25 °C
5 to 8 hours
20 to 25 °C
12 hours
25 to 30 °C
18 hours
> 30 °C
24 hours
Warning, for temperatures below 15 °C,
STERILOR Sel must be stopped.
Wash the filter regularly (approximately once
a week).
4.1.1 pH
The pH of the water must be maintained
between 6.9 and 7.4.
The pH of the water in a swimming
pool varies naturally and continuously, but
always keeps the same trend over time. It
must usually be analysed once or twice a
week.
Correct it by manually adding minus pH or plus
pH in the swimming pool.
Scrupulously follow the indications
regarding the doses and usage precautions
provided by the manufacturers of these
products.
4.1.2 Chlorine
The ideal active chlorine level is around 0.3 to
0.4 mg/l (ppm) as soon as the water
temperature reaches approximately 15 to 20
°C.
Whenever the device is used with
water that does not contain chlorine, carry out
manual chlorination. For 100 m3 of water, 300
g per day for 8 days.
4.1.3 Salt
The salt level must be 5 g/l or 5 kg/m3.
The salt level should be analysed at the
beginning and in the middle of each season. A
salt analysis kit is supplied with the device.
The salt analysis strips are sensitive to
humidity and have an expiry date written on
the box. Add salt if this concentration is below
5 g/l.
Calculating the amount of salt to put in
the swimming pool:
Weight of salt to be added in Kg = (5 –
concentration of salt measured in g/l) x
Swimming pool volume in m3
Example: The analysis detects 3 g/l of salt in
the pool water, which is 80 m3, instead of the
recommended 5g/l.
You need to add: (5g/l ideal level - 3g/l level
analysed = 2 g/l to be added) i.e. 2 kg per m3.
Therefore, you need to add 80 m3 x 2 kg/m3 =
160 kg
Adding salt: If you use conventional salt (salt
for softener, not cooking or road salt), you can
add the stabiliser manually. But be careful,
never exceed 60 mg per litre of stabiliser in
the water. Above this concentration, the
chlorine is consumed by the stabiliser and in
this case you need to empty the swimming

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pool in order to reduce all or part of this dose.
Reminder: Always switch off STERILOR Sel
before adding salt.
Leave the filtration system to operate by
directing the backflow nozzles downwards to
dissolve the salt better.
Wait for the salt to be completely dissolved
before switching STERILOR Sel back on.
Every time salt is added to the swimming pool,
the device must be switched off for 24 hours,
so that the salt dissolves completely. Carry out
a new salt analysis after 24 hours, and add
more if necessary.
4.1.4 Stabiliser
The level of stabiliser must be between 30 and
50 mg/l (ppm).
The level of stabiliser should be analysed at
the beginning and in the middle of each
season.
Ask your installer to analyse the level of
stabiliser, which must not exceed 60 mg/l
(ppm). Above this concentration, the chlorine
is consumed.
The stabiliser helps to maintain the level of
chlorine produced by protecting it from being
destroyed by UVs.
4.2 Production setting
4.2.1 Displaying and adjusting the
production
The amount of Chlorine produced
depends on the salt level, water temperature
and quality, and the device's operating time,
i.e. the filtration time.
The consumption of chlorine depends
on the water quality, contamination of the
pool, its level of use, the environment and the
climatic conditions.
Average operating settings, in water at
25 °C and with 5g/l of salt:
The settings recommended below must
be refined depending on the region, the
climatic conditions and the level of use, and
only regular monitoring will guarantee correct
swimming pool treatment. Standard settings
cannot be defined because each pool is
specific due to its dimensions, its location and
its level of use.
Swimming pool
volume
Production
percentage
0 to 40 m3
30-50 %
40 to 60 m3
50-80 %
60 to 100 m3
80-120%
100 to 120 m3
120 to 135%
120 to 160 m3
135 to 160 %
4.2.2 Production percentage setting
procedure
Production is regulated by keeping the
P key pressed down and using the +/- keys,
and the percentage increases or decreases in
5% increments over a 30 to 180% range.
Held
down

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Warning: as the production is
regulated in cover mode, you need to validate
the position of the cover before setting (see
Chapter 4.5) to be certain to adjust the
production percentage in normal mode, green
LED on - cover open.
4.3 Automatic Operation or Forced
Operation
4.3.1 Display –Operating the Forced
operation
Forced operation uses the maximum power of
the electrolyser to carry out shock
chlorination.
Reminder: this shock chlorination is only
intended to treat situations where water
quality has been lost and under no
circumstances should become the normal
mode. It must only be used to manage periods
of very high use of treatments or to resolve a
situation where treatment has not been
carried out enough.
To optimise this Shock Chlorination, the
pH must be adjusted to between 6.9 and 7.4
beforehand.
The filtration box must also be in manual
operation position for 24 hours to guarantee
the continuity of this shock treatment.
4.3.2 Forced Operation activation and
deactivation procedure
The forced operation is activated by
pressing on the Forced Operation key (F key)
for 5 seconds. The red Forced Operation light
comes on and the "Forced Operation" text
appears. The production then changes to
200%.
Leave the equipment to operate for a
maximum of 24 hours, and carry out manual
analysis of the level of chlorine, in order to
stop the shock chlorination if necessary and
revert back to automatic mode.
Comment: the forced operation will
disconnect automatically after 24 hours of
operation to revert back to automatic mode.
The forced operation can be deactivated at
any time by pressing on the Automatic
Operation key (A key) for at least 5 seconds
4.4 Change in polarity
4.4.1 Displaying the change in polarity
The display indicates the position of the
polarity: either on the right electrode or on
the left electrode.
E.g.: left Polarity work
4.4.2 Operating the change in polarity
This occurs automatically every 90
minutes and lasts 5 minutes.
During this change in polarity phase,
the keys are blocked, no actions are possible.
5 sec.
5 sec.

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The display shows 90 60. The first two
digits indicate the minutes (90) and the
second two digits indicate the seconds (60)
being 60 seconds. The seconds count down to
zero. When the seconds are at zero, the
countdown of the minutes starts changing to
89 and so on for 90 minutes. E.g. 90 60
becomes 90 59 then 90 58, etc., then 89 60
then 89 59, etc. Until 00 00.
At the end of counting, i.e. 00 00, the
right and left polarity displays show 00 00 as
well as the chlorine production display. The
electrode electrically discharges slowly. This is
depolarisation. This operation prevents micro-
short-circuits between the electrodes.
Therefore, they last longer. This stage lasts 5
minutes. The 2 displays are incremented from
00 00 to 04 59.
After counting these minutes, the
production percentages increase until the
value initially saved is displayed. The display
then indicates 90 60 and the countdown starts
again. The polarity is changed automatically
every 90 minutes.
4.5 Displaying device operating time and
hours
STERILOR Sel indicates the time and is also
equipped with an operating time counter.
To set the time, press on the H button
(hours, minutes) for 5 seconds: the hours
display flashes. Press on + or –to change
them. Press again on H (hours, minutes) and
the minutes flash. Press on + or –to change
them. Finally, press on H to store the time in
memory.
4.6 Cover servocontrol –Slow mode
4.6.1 Displaying and operating the Slow
Mode
STERILOR Sel is equipped with the Slow
Mode option, for modulating the production
of chlorine according to the open or closed
position of the cover.
For this, the run stop contact of the
cover must be connected to the connection
intended for this purpose and using the cable
supplied.
(Important: this contact must
absolutely be a dry contact not connected to
the power supply)
The cover connection is located to the left of
the box.
Chlorine production servocontrol in Slow
Mode:
Activation of the cover mode or slow mode:
If bubbles appear around the Chlorine
production text, the slow mode is active:
If there are no bubbles, the device is in
chlorine regulation mode:
You need to hold down the + and –at the
same time until the bubbles reappear.
When the cover is open, chlorine is produced
based on the setting that you defined in
normal production mode.
When you close the cover, STERILOR
Sel automatically reduces the production
value by half. You can also adjust this value
manually.
Held down

18
4.6.2 Manual setting of the production
percentage with the cover in closed
position
Production is regulated as in normal
mode by keeping the P key pressed down and
using the +/- keys.
Take care to validate the adjustment made
by opening and closing the cover to prevent
any over or under-chlorination due to an
operating error. Effectively, the input value
becomes the reference value.
4.7 Servocontrol to a chlorine analysis
Before any use, validate the level of
stabiliser. It must be below 25 ppm, the ideal
level being 15 ppm in order to be compatible
with a redox measurement.
STERILOR Sel is equipped with the
chlorine measurement servocontrol option,
for modulating the production of chlorine
according to the redox potential measured in
the swimming pool.
For this, the dry contact from the
chlorine regulation box, e.g. STÉREDOX, must
be connected to the connection intended for
this purpose (left-hand lateral side of the
device).
Activation of the Chlorine Regulation mode:
Press on the + and –keys at the same time
until the bubbles around the Chlorine
production text disappear, the chlorine
measurement servocontrol mode is activated:
Active chlorine
Servocontrol mode
Inactive chlorine
Servocontrol mode
When the chlorine analysis (redox or
other) is below the threshold configured, the
Electrolyser will be used, and the electrolyser's
production changes from zero to the
percentage set.
Warning, the production percentage must be
boosted in relation to the normal percentage
because the operation is no longer
continuous but regulated.
Servocontrol of the chlorine production to the
chlorine analyser (for example STÉREDOX):
When the chlorine analysis is below the set
threshold, the Electrolyser will be used, the
electrolyser's production changes from zero to
the percentage set.
When the value measured is above the
regulation threshold, the box stops the
electrolyser's production, switches to 0%
without switching off the electrolyser, the
display therefore remains active.
Held
down
Held down

19
A regulation module inside the electrolyser
means that there may be an offset in time
between the signal emitted by the chlorine
analyser (STÉREDOX) and the electrolyser's
start (or stop) of production. Offset of 0 to 2
minutes.
Measurement < Regulation threshold
Case of STÉREDOX: "Regulation" LED is flashing
% Electrolyser Production = change from 0% to the percentage set
Measurement ≥ Regulation threshold
Case of STÉREDOX: "Regulation" LED is off.
% Electrolyser Production = change from 0%, DEVICE REMAINS SWITCHED ON
D0rP DIAGNOSIS appears.
4.8 Displaying the diagnoses
After a certain operating time, a diagnosis appears. This diagnosis indicates that the electrode
needs to be checked.
See table below:
CODE
Diagnosis
Possible causes
Solutions
D001
This analysis
appears when the
device recognises
poor conductivity
between the
electrodes. It then
displays ‘---‘ on the
chlorine production
display.
The cell is disconnected
or not connected
properly, or oxidised
Check the connection
The electrodes are
scaled up
Clean the electrodes
(ACIDULOR
recommended cleaning
fluid)
The amount of salt in
the water is too low
Check the salt level 5g/l
D0033
After 6,000 hours of
operation of the
device, this analysis
appears.
It tells you that the
electrode needs to be
checked or replaced.
To cancel this analysis,
press on the A and F keys
at the same time.
D004
Flow rate sensor
fault
No flow,
sensor jammed,
valves closed
Check the flow of
water at the sensor, if
necessary
D0rP
The Stéredox box is
not in active
regulation, the
electrolyser is not
requested and the
production is at 0%
This diagnosis has just been established to justify this change
of production to 0% to the user, there is no malfunction.

20
Cancelling the diagnosis signal:
Before cancelling this signal, always check what caused it and correct it by following the instructions in
this manual
5. WINTERISATION
As soon as the temperature of the pool water
falls below 15 °C, stop STERILOR SEL.
Effectively, at these temperatures, Chlorine
production becomes practically zero, and the
titanium electrodes wear out much more.
Protecting from frost
During winter, if you stop the filtration for a
long period, add a common winterisation
product, following the manufacturer's dose
levels.
The swimming pool operates throughout the
winter
Stop STERILOR SEL below 15 °C:
Use a common winterisation product,
following the manufacturer's dose levels.
Then filter for 1 to 3 hours a day.
Early morning filtration limits the risks of
freezing at dawn.
Correct the fairly low pH, between 6.8
and 7.0 once or twice a month.
6. EARTHING SLEEVE
A large number of swimming pools are
currently constructed with electrically
insulating materials. Embedded parts, wall
crossings, pipes, valves and pump housings are
made of PVC, ABS or other plastics. The linings
are often made of polyester, PVC liner, or
painted. These types of swimming pools, of
which all of the components are made of
plastic, have the characteristic of storing static
electricity.
Also, the pump turbines create fairly
significant static currents. A filtration pump
thus creates a variable voltage of
approximately 3 to 4 Volts. The same applies
for counter-current pool motors. Therefore,
there is always a voltage of 3 to 8 volts in the
swimming pool's water.
This voltage can reach 12 volts during a storm.
A poorly balanced pH destabilises the mineral
salts contained in the pool water. The mineral
salts in ionic form and with a positive charge
then react with the bottom or sides of the
pool, on the parts that are statically the most
negatively charged. Bonds are then produced
between the molecules, causing
grey to black disparate stains, or even making
the whole lining turn a greyish colour.
The installation of an earthing sleeve prevents
these phenomena by earthing the residual
electrical currents. These stains cannot be
eliminated by rubbing, and only an acidic
medium will make them disappear.
Assembling earths: (Earths exist in 1’’1/2, or
2’’)
For maximum efficiency, screw the Earthing
sleeve on the pump output