Pool Controls Ozone XLM Series User manual

Series
User Manual
for
Ozone with XLM Series Mineral
Chlorinators
Head Office: 58 Prosperity Avenue, Wangara, WA 6065
Phone: [phone]
Web: poolcontrols.com.au
Email: [email protected]
User Manual - User Manual –Ozone XLM 2020.docx

Contents
Manufacturers’ Warranty 1
What’s in the box? 2
How it Works 3
Initial Pool Balance 3
Pool Blanket Covers 4, 14, 18, 21
Installation Guide 5
Cell Connections & Venturi Injector Manifold 8
Front Panel & Operational Buttons 9
Menu System 11
Timer Menu 12
Chlorine Output & Advanced Settings Menu 14
Algorithmic pH Control –the +Acid Menu 15
Status Indicator, Warnings and Safety Shutdowns 17
Maintenance 19
Cell Cleaning 20
Troubleshooting 21
IMPORTANT
If the power cord is damaged the unit must be returned to Pool
Controls for repair.
Always read the instructions and warnings on chemical
containers before using chemicals.
Never add minerals before testing levels
Serial Number........................................
Date of Installation................................
Installed by.............................................

Page 1
Manufacturer’s Warranty
Pool Controls Manufacturer’s Warranty
Pool Controls products come with guarantees that cannot be excluded under the Australian
Consumer Law. You are entitled to a replacement or refund for a major failure and for
compensation for any other loss or damage. You are also entitled to have the goods
repaired or replaced if the goods fail to be of acceptable quality and the failure does not
amount to a major failure. The benefits under this warranty are in addition to other rights
and remedies under a law in relation to the goods.
3 Year Warranty on New Domestic Installations
Pool Controls warrants all its products used in new domestic installations to be free from
defects in material and/or workmanship for a period of 3 years from the original date of
purchase or installation.
2 Year Warranty on Replacement Parts
Pool Controls warrants replacement parts used in domestic installations, including multi-
electrodes (probes), solenoid valves and electrolytic cells (but excluding wearing parts
such as tubing and squeeze tubing) to be free from defects in material and/or workmanship
for a period of 2 years following purchase.
Exclusion for Wearing Parts
This warranty does not extend to wearing parts, in particular the squeeze tubes fitted in
dosing pumps. Squeeze tubes should be replaced every twelve months by a suitably
qualified technician. Pool Controls is not liable for any failure of its products or other
damage caused by failure of a squeeze tube that has been used for more than twelve
months.
WARRANTY OBLIGATIONS OF POOL CONTROLS
If a defect in workmanship or materials in any Pool Controls product covered by this
warranty is discovered during the term of the warranty and provided the warranty holder
follows the procedure set out below, Pool Controls will repair or replace that item at the
option of the warranty holder.
PROCEDURE FOR CLAIMING UNDER THIS WARRANTY
In order to claim under this warranty, the warranty holder must:
•Contact Pool Controls Service as soon as possible after the discovery of the
defect and in any event, within the relevant warranty period;
•Confirm date of installation;
•Confirm that the installation was completed by a suitably qualified technician, as
set out in the installation manual; and
•If required, arrange for the relevant Pool Controls’ product to be returned to Pool
Controls for repair, and the warranty holder is responsible for the cost and risk of
any freight or transportation to and from Pool Controls.

Page 2
CALL OUT FEES
•This is a “Back to Base” Warranty, which means that if the Pool Controls product
needs to be serviced, replaced or repaired at a place other than Pool Controls’
premises, a call out fee will be charged to cover the cost of travel by an authorised
Pool Controls technician. Please note that this call out fee will NOT be charged
when the relevant Pool Controls product is returned to Pool Controls for repair.
•If an authorised Pool Controls technician repairs or replaces a Pool Controls
Product and this warranty does NOT apply, a fee for labour and parts supplied will
be charged in addition to the call out fee.
•If the Pool Controls product needs to be returned for repairs under this warranty,
the warranty holder is responsible for the cost and risk of any freight or
transportation to and from Pool Controls.
WARRANTY EXCLUSIONS
•This warranty is for domestic installations only. Where Pool Controls products are
installed for a commercial application this warranty does not apply.
•This warranty extends to the original owner only, beginning on the date of
installation and is not enforceable by any other party without the prior written
consent of Pool Controls.
•Pool Controls is not responsible for any cost of freight or transportation to or from
its Service Department.
•Pool Controls is not liable under this warranty if the installation of the Pool
Controls product was not carried out by a suitably qualified technician.
•To the extent permitted by law, Pool Controls is not liable for:
➢any incidental or consequential loss incurred in connection with the removal or
replacement of the Pool Controls product under this warranty; or
➢product failure resulting from misuse, freezing, accident, negligence, improper
installation or inadequate maintenance.
•To the extent permitted by law, Pool Controls disclaims all other warranties, either
express or implied, including, but not limited to, implied warranties of
merchantability and fitness for a particular purpose with regard to Pool Controls
products, parts and/or any accompanying written materials.
REGISTER YOUR WARRANTY NOW
Go to www.poolcontrols.com.au, click on the warranty registration tab to fill in your details.
CONTACT POOL CONTROLS
Pool Controls is based at 58 Prosperity Avenue, Wangara, WA 6065. We also have service
technicians based in NSW, Queensland and Victoria.
•Service Email: [email protected]
•Service Phone: [phone]
What’s in the box?
•Ozone XLM SeriesPower Supply, Ozone Injector, Cell and Cables
•User Manual
•40/50 Bushes and Mounting hardware (raw plugs, screws and paper template)

Page 3
How it works:
A mineral chlorinator works by putting a dc current through an electrolytic cell in a flow of
mineral salted water. Minerals is mostly made up of magnesium/potassium/sodium and
chloride ions. Electrolysis of these minerals produces chlorine gas, which dissolves almost
instantly to form free chlorine in the water. This free chlorine is a highly effective sanitiser
for your pool. The ozone added by the system is a highly effective oxidiser that destroys
contaminants faster than chlorine, leaving more chlorine to act as a residual sanitiser.
The Ozone XLM Series constantly adds ozone and a dose of chlorine to the water over the
operating period of the system. The amount of chlorine added depends upon the cell
output and the running time.
Generally, a mineral pool is run for around 8 hours per day in summer and 2 to 4 hours per
day in winter. The summer operating periods are usually in the early morning and later
evening. This allows a chlorine residual to build up for pool use during the day.
The filter system should always be running when the pool is being used. If a pool
cover/blanket is used the chlorine demand will be greatly reduced. To avoid over-
chlorination use the Cover Blanket On/Off button. See pages 4, 14, 17 & 20.
pH Control (standard in Ozone XLM unit)
When chlorine is added to water the pH always changes –this is because chlorine is not a
neutral chemical. The pH will slowly rise as chlorine is produced in a mineral water
system. A rise in pH greatly reduces the effectiveness of the chlorine as a sanitiser, so it
is important to ensure that the pH remains in the correct range.
The pH of the water can be lowered by the addition of acid –and if your Ozone XLM Series
has the optional pH control, this can be done automatically. The Ozone XLM Seriesuses a
sophisticated algorithm to calculate how much chlorine has been produced by the cell, and
how much acid needs to be dosed to correct the resultant pH rise.
The algorithm can be adjusted if installed on a concrete/plaster pool. When adjustments
are made it should be in small values with the pool then monitored for effectiveness.
Note: while the algorithmic pH control is effective it does not measure pH.
pH measurement and checking must be done manually to make sure the pH is correct.
Initial pool balance
Before you begin using the Chlorinator, make sure your pool water is balanced as follows:
Minerals –only add minerals after checking the levels
There should be between 900 and 2000ppm of TDS in the pool ideally 1200 - 1600ppm.
This is achieved by adding 10kg of mineral for every 6000 litres (6m3) of pool volume.
The conductivity of minerals is different to pure (sodium) salt. All TDS testers are calibrated
for sodium chloride salt. You will need more weight of hydrated minerals to achieve an
equivalent TDS to salt –follow the mineral instructions.
Note: keep mineral TDS well below 3000ppm to avoid overloading the cell and
causing shutdown. Only add after checking the level.

Page 4
Chlorine
If it is a new installation, add enough chlorine (liquid or granular) to achieve a reading of
3ppm on an appropriate test kit.
Stabiliser
If the pool is outdoors, it is vital that stabiliser (also known as cyanurate and cyanuric acid)
be added and maintained at 50ppm. This compound reduces chlorine destruction due to
sunlight. However, too much stabiliser will reduce the effectiveness of chlorine and can
result in poor quality water so ensure stabiliser does not exceed 80ppm.
pH
For chlorine to be effective, the pH must be within a certain range. This is usually between
6.8 (fibreglass/liner pools) or 7.2 (concrete/plaster) and 7.8.
Adjust pH down with acid –powder, liquid sulphuric or liquid hydrochloric (preferred). Be
very careful with acid as it can be harmful and corrosive.
Minerals: the magnesium in mineral salts can form a soft scale on the cell even though it
is reversing polarity. This is minimised by keeping the pH at the lower range for your pool
type. The use of hydrochloric acid is recommended for magnesium mineral systems.
Total Alkalinity (TA)
Total alkalinity is also known as carbonate hardness or TA for short. The recommended
level is between 80 and 120ppm.
TA is related to pH in that it stops the pH from varying quickly with small additions of acidic
or alkaline chemicals. When the TA is low it is almost impossible to control the pH. To
raise the TA, buffer (sodium bicarbonate) is added. This must be done slowly as buffer will
also cause the pH to rise. As an approximate rule every increase of 20ppm of TA will also
cause a 0.1 rise in pH. Once buffer is added it should be left to mix in the pool for a few
hours before reducing the pH.
Phosphates and Nitrates
Phosphate and ammonia nitrogen will make your garden green –and they will do the same
thing to your pool. Check for phosphates and add phosphate remover if necessary. Don’t
let fertiliser get into your pool! Phosphates are also in some cleaning products –check the
label if using around your pool.
Pool Cover Blankets
Most of the chlorine demand for a pool comes from the action of sunlight on the chlorinated
water. When a cover blanket is used it is possible for the chlorine residual to build up to a
higher level that can be damaging to the blanket and possibly the pool and fittings.
This unit can adjust the output to compensate for the use of a cover blanket –simply push
the button and the display will flash COVER. While the cover is on the chlorine output will
be reduced. When the cover blanket is removed simply push the button again and the unit
will revert to its normal chlorine output.

Page 5
Installation Guide
Installation Diagrams
For most installations, please refer to the installation diagram on page 7. Pay careful
attention to the Venturi Injector detailed on page 8.
Choosing a good location
The Ozone XLM Series is manufactured from weather resistant materials and is designed
for operation in full sun and rain. However, your Ozone XLM Serieswill benefit if it is
protected from the weather.
Choose a well ventilated area to allow for efficient cooling. Installing the unit in a hot and
closed shed or box may lead to overheating and activate the internal protective thermal
cut-out.
The Ozone XLM Series Power Supply should not be mounted in areas where chemicals
are stored (eg acid and chlorine) as vapours from these chemicals are corrosive and may
damage the electronic controls within the unit.
Insect intrusion (particularly ants) can cause problems with all equipment. Ensure that the
pool equipment area is kept free of insects as much as possible. Insect intrusion is not
covered under the warranty.
Installing the Ozone XLM Series Power Supply
Locate the Ozone XLM Series Power Supply close to the Cell/Housing and filtration pump
so that both may be connected easily.
Mount the Ozone XLM Series Power Supply at least 1.5m above the ground and at least
3m from the pool water. A simple keyhole mount is used, see the back of the unit. When a
position is chosen, attach the 10G to 12G screw to the post or wall and hang the unit. Then
mark a point for the locator at the bottom of the unit and attach a locator screw.
Connect the Ozone XLM Series Power Supply to the mains power outlet of the pool area
and make sure this outlet meets all applicable Australian Standard at the time of
installation.
The PUMP socket outlet in the base of the Ozone XLM Series Power Supply is dedicated
to the filtration pump only. Do not use a double adaptor to connect another pump as this
will overload the system and void warranty.
Installing the Ozone XLM Series Cell
The Ozone XLM Seriescell housing assembly should be plumbed into the pool return line
after all other accessories (and prior to any heating take-offs).
Remember that the cell will need to be removed from its housing periodically for cleaning –
do not place it where its removal will be obstructed.
Note any water flow direction on the cell housing and ensure the cell housing is installed so
that water will flow in this direction.

Page 6
Connect the cell cable to the cell connector on the base of the Ozone XLM Series Power
Supply. Ensure that all 3 connections (2 for cell power and 1 for gas sensing) are colour
matched and not loose.
pH Control Feed Line, Ozone Feed Line and Injector
The pH Control and Ozone systems share an Injector. Refer to the installation diagram on
page 7 & 8 for details. Mount the Injector after the Cell –it should be the last item in the
return line. There should be minimum backpressure at the Injector outlet.
Cut a length of tubing that will reach from the base of the peristaltic pump to the base of
the acid drum. Position the acid drum in a safe and secure location, preferably about 2
metres from the Ozone XLM Series. Connect the one end of this tube to the inlet side of
the peristaltic pump (the direction of flow is indicated by an arrow on the front cover of the
peristaltic pump.)
Drill an 8mm hole in the lid of the acid drum and pass the tubing through the hole in the
drum lid. Place a sinker on to the end of the tubing that will be in the drum and then attach
the drum filter. Note that the drum filter incorporates a non-return valve to prevent back-
flow into the chemical drum.
Before placing the tubing into the drum, measure the tubing against the outside of the drum
and wrap several turns of PVC tape around the tubing above the drum lid so that the drum
filter will be 10-15mm above the bottom of the drum. Lower the drum filter and sinker into
the drum and screw on the lid.
Cut another length of tubing that will reach from the base of the peristaltic pump to an
injection fitting loop. Connect one end of the tubing to the outlet side of the peristaltic
pump (the direction of flow is indicated by an arrow on the front cover of the pump.)
Connect the other end of the tube to the injection point loop.
Cut another length of tubing that will reach from the ozone outlet to the other injection
fitting loop. Connect one end of the tubing to the ozone outlet. Connect the other end of
the tube to the injection point loop.
Pool Light Outlet
If your Ozone XLM Serieshas a light power outlet on its base, this can be used to run up to
150W of pool light power supplies. This outlet is timed, allowing pool lights to be set to
come on and turn off automatically.
Auxiliary Power Outlet
If your Ozone XLM Serieshas a third power outlet on its base, this can be used to run
other pool equipment such as a UV unit. This outlet is timed as for the pump outlet, so
accessories can be set to come on and turn off automatically with the pump.

Page 7

Page 8
Cell Cable Connection
The Venturi Injector
The Venturi Injector uses a bypass valve to create pressure across the venturi to produce
a vacuum. Ensure that the water flows in the correct direction.
Any backpressure on the outlet of the Injector will mean that the valve must be closed
further to produce suction.
The Injector Manifold should be installed above the water line. For pools that have the
equipment installed below the water line THE MANIFOLD MUST BE INSTALLED AS HIGH
AS POSSIBLE. This reduces the static backpressure of the pool water.
The Manifold should be installed as the last piece in the return line and should avoid
pressurised return jets. The returns to the pool should be angled downwards to allow the
maximum contact time of the ozone with the water.
The Ozone NRV must be installed between the gas loop and the ozone outlet.
After installation the Injector must be set to create as vacuum. With the pump running the
valve must be closed until a hissing a sound is heard from the venturi. Check the pool
returns for a good amount of air bubbles returning to the pool.

Page 9
The OZONE XLM Series Front Panel
Ozone XLM Series Display
The Ozone XLM Series uses a two line LCD display to provide the user with information.
The first line of the display shows the current time and the cell status and output.
In the example above the time is 10.15am and the Cell is “OFF”. If the Cell is on, the
output of the Cell will be displayed. If the output of the Cell has been set at lower than
100%, “CELL OFF” will be displayed intermittently even while the unit is running as the Cell
regulates output. (See Chlorine Output Menu on page 16 for more details)
The second line of the display shows the automatic timer status.
In the example above, the automatic timer status is “OFF” and the display is telling you that
the Ozone XLM Serieswill turn on again at 17:00 or 5pm.
Note that the Ozone XLM Seriesdisplays the time using a 24 hour clock.
OZONE XLM Series Operational Buttons
Your Ozone XLM Serieshas 5 buttons that allow you to control the various functions
available via the Ozone XLM Series Menu system.
ON Button
Turn the System On Manually: Press ON once to switch the Ozone XLM Seriesand pool
pump on manually. The Ozone XLM Serieswill default back to AUTO and turn itself off
automatically at the end of the next programmed FILTER CYCLE (the time will be
displayed on the LCD).
Increasing Manual Run-time in Hourly Increments: Press ON repeatedly (or hold the
button down) to increase the manual run time in hourly increments. The run time is
displayed on the LCD. When the desired run time has been reached, press ENT to
confirm your selection and the system will commence operation.
Each button is labelled with its primary function
either on the button itself, or adjacent to it.
Secondary functions are labelled within a curved
white outline next to the relevant button. The
buttons are backlit to show which are active at
any given time, although the ESC/OFF button is
always available to take you back to the home
screen.

Page
10
ESC/OFF Button
Turn the System Off Manually: If the Ozone XLM Seriesand pool pump are running,
pressing this button will turn them off manually. The Ozone XLM Serieswill automatically
turn on again at the start of the next FILTER CYCLE (the time will be displayed on the
LCD).
Return to Home Screen: If you have unintentionally accessed a Menu that you don’t
require, pressing ESC/OFF allows you to return to the home screen.
ENT/Menu Button
Use this button to enter the Ozone XLM SeriesMenu system and access the various Menu
options. Use Y/UP and N/DOWN to scroll through menu options and when your desired
menu option is displayed, press ENT to access that option.
Y/UP Button and Optional Pool Light
In the Menu system Y/UP will scroll upwards through menu options. Some menu options
will prompt a yes or no answer. If you wish to answer “yes”, press Y/UP.
If your Ozone XLM Seriesalso controls your pool lighting (optional), you can turn the lights
on or off manually by pressing the Y/UP button. For multi-coloured lights, hold the Y/UP
button down to cycle through the various colours and release once the desired colour is
reached.
N/DOWN Button and Cover Blanket On/Off
In the Menu system N/DOWN will scroll downwards through menu options. Some menu
options will prompt a yes or no answer. If you wish to answer “no”, press N/DOWN.
Cover Blanket On/Off: When not in the Menu system N/Down will cause the Cover setting
to be toggled –that is it will go from Off to On or On to Off. The Cover setting changes the
amount of chlorine produced. See pages 4, 14 &17.

Page
11
Navigating the OZONE XLM Series Menu System
There are two aspects to the general Ozone XLM SeriesMenu system –the Timer Menu
and the Chlorine Output Menu.
Access the Ozone XLM SeriesMenu system by pressing the ENT button and following the
prompts on the LCD. If you find you have ended up in a part of the Menu system
unintentionally, you can return to the Home Screen by pressing the ESC/OFF button at any
time.
Use the Y/UP and N/DOWN buttons to scroll through the various menu options until the
desired option is displayed on the LCD. Use the ENT button to confirm that you wish to
select that option. Once accessed, use the Y/UP and N/DOWN buttons to adjust
operational settings up or down –and confirm adjustments by pressing ENT. To cancel
any adjustments, simply press ESC/OFF to return to the Home Screen.
Timer Menu
Setting the time
Once you have installed your Ozone XLM Seriesand turned it on, you will need to set the
correct time on the OZONE XLM SERIES Series’ 24 hour clock.
First, access the Menu System by pressing the ENT button. The LCD will display the word
TIMER MENU. Select this by pressing the ENT button once more.
Line 2 on the LCD will now read SET TIME HOURS. Press ENT to select this option and
then use the Y/UP and N/DOWN buttons- to adjust the hours on the LCD. Confirm the
correct hours value by pressing ENT again.
The LCD will now show SET TIME MINUTES. Adjust the minutes using the Y/UP and
N/DOWN buttons. When complete, press ENT to return to normal operation.
Filter Cycles Menu
Your Ozone XLM Serieshas two filter cycles pre-programmed as factory defaults as
follows:
Filter Cycle 1: ON at 07:00 (7am) OFF at 11:00 (11am)
Filter Cycle 2: ON at 18:00 (6pm) OFF at 22:00 (10pm)
You can change the start and finish times of each filter cycle to meet your sanitiser
requirements and to suit your lifestyle.
To adjust filter cycle start and finish times, press ENT to access the Ozone XLM Series
Menu system. Press ENT again to select the TIMER menu and then scroll down using the
N/DOWN button until ADJUST CYCLES is displayed on the LCD.

Page
12
Select this option by pressing ENT and the LCD will show the start (ON) time of the filter
cycle being adjusted. Use the Y/UP and N/DOWN buttons to adjust the start time. Press
ENT to confirm your selection and then the LCD will show the end (OFF) time for that filter
cycle. Adjust the OFF time in the same way as the ON time and press ENT to confirm.
After ON and OFF times for the first filter cycle have been adjusted, the ON time for the
second filter cycle is shown on the LCD. This can be adjusted in the same way, or if you
do not wish to make any changes, simply press ENT to confirm the time shown on the
LCD. Follow the same process to either adjust or confirm the OFF time for the second
filter cycle, and once this has been confirmed the LCD will display the home screen.
Note: an additional 2 filter cycles can be enabled and programmed via the Advance
Settings Menu. For details on how to access this menu, please refer to the Advance
Setting Manual (available to download from www.poolcontrols.com.au) or call Pool
Controls Service on 1300 550 010.
Running Times
We recommend your system be operated for at least 8 hours per day and always run
the system when using the pool.
The amount of chlorine being added to the pool each day is determined by the cell size,
the chlorine output settings (See Chlorine Output Menu below) and the number of hours
that the Ozone XLM Series is operated. As sunlight destroys chlorine, it is recommended
that the Ozone XLM Series be run mostly in the evening.
Chlorine is added for sanitation but the filter is needed to remove pollutant particles (dust,
sand etc) and keep the water looking good. The filter must operate for a reasonable
number of hours per day to remove pollutants.
In very hot weather and/or with large bather loads, the pool may need to run for even
longer and if necessary, extra chlorine should also be added manually. If there are
adverse local conditions –such as windborne dust and debris - the chlorine demand will be
higher than normal and you will likely need to operate the system for longer periods to
adequately filter the water.

Page
13
Light Timer Menu
You can use your Ozone XLM Seriesto turn your pool or garden lighting on and off
automatically, you can set the ON and OFF times using the light timer menu.
Press ENT to access the Ozone XLM SeriesMenu system. Press ENT again to select the
TIMER menu and then scroll down using the N/DOWN button until LIGHT MENU is
displayed on the LCD.
Line 2 on the LCD will now read “AUTO? Y/N”. To enable automatic light operation press
the Y/UP-button. Line2 will read “Auto ON” for short period before displaying “ON hh:mm”.
Adjust the ON time using the Y/UP and N/DOWN-buttons and confirm by pressing ENT.
The LCD will now prompt you to set the OFF-time, which is accomplished using the Y/UP
and N/DOWN-buttons as before. Press ENT-to confirm the new OFF-time and the LCD
will return to the home screen.
To disable automatic light operation, access the LIGHT menu in the way described above
and when asked “AUTO? Y/N” - press the N/DOWN button. Line 2 will read “Auto OFF” for
short period then the system will return to normal operation and the light can only be
operated manually (see below for how to do this).
Manual Light Operation
If the Ozone XLM Seriesis turned on, the light can be turned on or off manually by
pressing the Y/UP-button.
If you have multi-coloured LED lights that cycle through different colours and requiring a
power pulse to change effects, you can hold down the Y/UP-button to cycle through the
options and release when the desired colour or effect is achieved.
Controlling the Chlorine Residual
There are two ways of controlling the amount of chlorine entering the pool –by altering the
running times and by reducing the Ozone XLM Series Output. If the pool chlorine residual
tests high you can reduce the operating time and/or decrease the Output. If the chlorine
residual tests low and the output is already at maximum you will need to increase the
operating time and/or add supplementary chlorine.
Ozone XLM Series Output Control
Ozone does not form a residual in the pool, this is why it is running with a chlorinator. The
ozone system is on whenever the pump is on. The LCD display usually shows the amount
of chlorine being produced by the Cell as a percentage of its maximum.
However, this is the not the same as the Ozone XLM Series Output. The Output Control
turns the Cell ON/OFF over a short period of time. The Output setting determines how long
the ON time is –for example if the Output setting is 60% the Cell will be ON for 60% of the
period and OFF for 40% of the period. This is why the Cell will turn ON/OFF if the Ozone
XLM Series Output is below 100%.

Page
14
Chlorine Output Menu
To adjust the chlorine output on your OZONE XLM SERIES Series, press ENT to access
the Ozone XLM SeriesMenu system. Scroll down using the N/DOWN button until
CHLORINE OUTPUT is displayed. Press ENT again to select this menu and then used
the Y/UP and N/DOWN buttons to adjust the output level. Confirm the adjusted settings by
pressing ENT once more.
Superchlorination
When bathers enter a pool there is a reaction between nitrogen/ammonia compounds from
the bathers and the chlorine in the pool. These reactions form chloramines (also called
combined chlorine) which are responsible for the “chlorine” odour and for some minor
irritations. Ozone helps to destroy these compounds.
These compounds can also be broken down by adding free chlorine to a level above 5ppm
by the addition of a shock dose of chlorine –also known as superchlorination.
Levels of chlorine immediately adjacent to the Ozone XLM Series Cell anodes far exceed
5ppm and so a lot of chloramines are destroyed as water passes the Cell.
If the chloramine levels still become high, simply add a shock dose of chlorine or run the
Ozone XLM Series for a long period overnight.
Cover Blanket On/Off –when chlorine demand is reduced
To adjust the chlorine output to compensate for the use of a cover blanket the unit must be
made aware that a cover blanket is in place over the pool. Simply push the N/DOWN
button for on and off selection. When the system is on COVER will flash in the display and
the chlorine output will be reduced.
Advanced Settings Menu
If you are interested in learning more about additional functionality of your Ozone XLM
Series, a detailed Advanced Settings Manual is available to download from the Pool
Controls website –www.poolcontrols.com.au –or call Pool Controls Service on 1300 550
010 for further information.
Advanced Settings comprise:
•WATER TEMP - allows you to compensate for cold water
•SYSTEM DATA - shows service information
•FILTER CYCLES - allows for up to 4 Filter Cycles to be activated and is very
useful for seasonal timer adjustments.
•LIGHT controls automatic light operation

Page
15
Navigating the +Acid Menu –the pH Control
As chlorine is produced the pool pH will go up slowly. This can be offset by small doses of
acid added to the pool. An algorithm calculates the amount of acid per dose that is needed
to maintain the pH, and once the system has been adjusted to suit your pool, maintenance
should be minimal. Note that the pH must be adjusted correctly for the controller to
maintain it.
However, it is vital that the system is initially adjusted to suit your pool and that pool
pH is checked regularly.
Accessing the +ACID Menu
It is only possible to access the +ACID MENU when a dosing device is attached. Press
ENT to access the Menu system and use the Y/UP or N/DOWN buttons to scroll through
the menu until the LCD Line1 reads “hh:mm +ACID MENU” – press ENT to select.
Acid Dosing System –Turning it ON and OFF
The default setting is for the acid dosing system to be ON.
To turn the Acid Dosing System OFF, access the +ACID MENU as described above and
Line 2 of the LCD will read “ADJUST Man DOSE?”. Press the N/DOWN button to answer
“no”.
The LCD will now show “ADJUST AutoDOSE?” Press N/DOWN to answer “no” and the
LCD will ask “DOSER OFF? Y/N”. Press Y/UP if you wish to turn the Acid Dosing System
off.
To turn the Acid Dosing System back on, access the +ACID MENU as described above
and Line2 of the LCD will read “DOSER ON? Y/N”. Press Y/UP to answer “yes” and the
Acid Dosing System will be enabled.
Adding Acid Manually –the ADJUST Man DOSE Sub-Menu
When you first ENTer the Acid Dosing System, the LCD will ask “ADJUST Man DOSE?”
This sub-menu allows you to adjust the amount of acid added as a manual (immediate)
dose. Adjustment is from 0mL (OFF) to 750mL in 15mL increments. This function is
useful for priming acid lines after an acid drum change, and for adding a large dose of acid
after adding buffer.
If you wish to make a manual dose, or adjust settings, press Y/UP to access this sub-
menu.
Line1 of the LCD will display: “hh:mm Man DOSE”;
Line2 of the LCD will display: xxx mL”
Use the Y/UP and/or the N/DOWN buttons to adjust the amount of acid to be dosed
manually. Press ENT to confirm and return to the Home Screen. Dosing should begin in
approximately 5 seconds.

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Automatically Dose Acid –the ADJUST AutoDOSE Sub-
MENU
Note: fibreglass and liner pools are unlikely to need adjustment of auto dose
amounts.
This sub-menu allows you to adjust the amount of acid added as an
automatic dose. Adjustment of the DOSE# is in increments of 10.
PressY/UP when Line 2 of the LCD asks “ADJUST Auto DOSE?” to enter
this sub-menu.
Line1 of the LCD will display: “hh:mm Auto DOSE”
Line2 of the LCD will display: “<90> 90 DOSE#” (note that <nn>
denotes the default value)
Use the Y/UP and/or the N/DOWN buttons to adjust the amount of acid to
be dosed automatically. The value will be used by the algorithm to
determine how much acid and when to add it automatically.
Press ENT to confirm and return to the Home Screen and normal operation.
Priming the Dosing Pump
To prime the acid feed line –go to the +ACID Menu and do a manual feed
of 100mL (or more if necessary due to length of feed tube). Note: the
dosing pump will only start after the filtration system has been running for 2
minutes’ “start delay”. Once the dosing pump is running, double check the
pump rotor direction and ensure it is correct (otherwise water will be
pumped into the acid drum.)
Adjusting the pH Control for Dilute Acid (Advanced Settings Menu)
If a unit has been installed with the pH Control Dose Pump this setting has likely already
been made by the installer.
To enter the Advanced Settings Menu hold the OFF-button down for approximately 4
seconds and when Advanced appears in the display press ENTer. Use Y/UP or N/DOWN
buttons to scroll through the menu until LCD Line2 shows “ACID Dilution” and press
ENTer. The LCD will show:
“Dilution NO”
“Dilution Y/N?” Press Y/UP for dilute acid use.
There are three possible dilution rates to select from using the Y/UP and N/DOWN buttons:
“Acid approx 10%” “Acid approx 14 - 16%” “Acid approx 20%”
“1 Acid : 2 WATER” “1 Acid : 1 WATER” “2 Acid : 1 WATER”
Note that undilute acid is generally 28 –32%. Note also that dose pump run times are
longer when dilute acid is used.

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OZONE XLM Series Status Indicator, Warnings and Safety
Shutdowns
There is a STATUS indicator on the front panel that simply shows green (OK) and red
(WARNING). The reason for any WARNING will be written on the LCD display. Possible
warnings are explained below.
Low Water Temperature & TDS
Low water temperature and lower than recommended mineral levels can both cause low
conductivity of the water to be detected.
The Ozone XLM Serieswill, however, continue to function and will display this without a
red warning indication. Simply check the TDS level and make sure it is well above 800ppm
(ideally around 1000ppm or a little more).
Check the temperature of the water, and if it is lower than 20ºC, you may wish to adjust the
Water Temperature setting using Advanced Settings Menus (information on Advanced
Settings available via www.poolcontrols.com.au or by calling Pool Controls Service on
1300 550 010.
Gas Detection & Dry-Run Pump Shutdown
This is an important safety feature of the Ozone XLM Seriesas a build-up of chlorine gas
can be dangerous.
The display above left shows the Cell being turned OFF after chlorine gas is detected for
approximately 10 seconds. If gas is still detected after approximately 2 minutes the pump
will also be turned OFF –and the display will read as shown above right.
To re-start the pump, simply press the ON-button (as instructed by the display). This will
reset the warnings and allow the pump to run (for a maximum of 3 minutes if gas is still
detected).

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High TDS
Too much mineral in the water results in high conductivity and the Ozone XLM
SeriesCell may overheat. The Ozone XLM Serieswill shut down to prevent this.
If the above warning is present, the Ozone XLM Serieswill have shut down to avoid an
overload (mandated by electrical standards).
Check the salinity/TDS and water temperature. Salinity/TDS should be kept below
3000ppm, and ideally will be above 900ppm.
The Ozone XLM Series is not designed for operation in seawater or brine.
Cover Blanket On/Off
When the cover blanket is on the display will alternate between time and COVER:
The Status LED will alternate orange (red + green) when COVER is displayed.
Operation Following a Power Failure
The Ozone XLM Series unit comes with a timer function built into the operating software.
The timer is a 24-hour type with quartz-crystal control. This Timer is backed-up by a Real-
Time Clock (RTC) similar to those found in computers.
During a power failure the Ozone XLM Series will keep time and maintain AutoMode
functions.
If a Filter Cycle is active when power is returned the pump will be turned ON within 1
minute. The Ozone XLM Series will keep all its settings and will not need to be re-
programmed.
The Ozone XLM Series is ideal for use in systems where repeated power cuts occur, such
as off-peak power circuits and Queensland’s Tarriff33 system.