Pool Controls Ozone Chemigem User manual

User Manual
for
Ozone Chemigem
Water Management System
Head Office: 58 Prosperity Avenue, Wangara, WA 6065
Phone: [phone]
Web: poolcontrols.com.au
Email: [email protected]
2020 Ozone Chemigem User Manual draft.docx

Contents
Manufacturers’ Warranty 1
What’s in the box 2
How it Works 3
Important Safety Measures 3
Basic Requirements –the Pool Owner 4
Use of Minerals 4
Initial Pool Balance 5
Installation Guide & Diagram 6
Front Panel 9
Navigating the Menu System 10
Timer Menu 11
ORP Menu 13
pH Menu 14
Status Indicator, Warnings and Safety Shutdowns 16
Maintenance 18
Troubleshooting 18
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.
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 six 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 six 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, Western Australia. We also
have service technicians based in NSW, Queensland and Victoria.
•Service Email: [email protected]
•Service Phone: [phone]
What’s in the box?
•Ozone Chemigem Controller and Multi-electrode (probe)
•Ozone Chemigem Controller and Mains Cable
•Injection manifold, Ozone Venturi manifold and Tubing
•User Manual and Mounting hardware (raw plugs and screws)

Page 3
How it works:
The Ozone Chemigem adds ozone to the pool water and continuously analyses pool water
chemistry while your pool system is running. The unit has two dosing pumps that feed
liquid chlorine and acid to the pool water flow in response to the water analysis from the
probe. Ozone is a powerful oxidiser and reacts with contaminants faster than chlorine. This
means that the chlorine added is used to maintain a residual rather than oxidise
contaminants. Ozone reduces the chlorine (and hence acid and buffer) usage of the pool
and breaks down more contaminants than chlorine alone.
Note: the filter system should always be running when the pool is being used.
Oxidation Reduction Potential
The Ozone Chemigem measures how much chlorine is in pool water by measuring the
ORP of the water. ORP stands for Oxidation Reduction Potential. Chemicals like chlorine
destroy pathogens (eg harmful bacteria) in water by oxidising them.
The level of oxidation available in the water can be measured chemically with an ORP
sensor contained in the Chemigem multielectrode (probe). This produces a voltage related
to the ORP of the water, which is a measure of the effectiveness of chlorine in the water.
Varying the ORP will affect how long it takes to destroy harmful bacteria in pool water. For
example, if ORP is maintained at 650mV, E-coli type bacteria will be destroyed in around
one second. However, if the ORP is lowered to 550mV, the same organisms may take up
to 2 hours to be eliminated.
pH Control
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 added to the water. 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 your Ozone Chemigem
does this automatically. The Ozone Chemigem multielectrode (probe) measures the pH of
the water and doses the pool with small amounts of acid to keep the pH in the correct
range.
IMPORTANT SAFETY MEASURES:
•Always add concentrated chemicals to water –not the other way around!
•Don’t allow chemicals to mix – dangerous, highly corrosive fumes will be
produced.
•Always wear protective clothing, footwear, gloves and eye protection
when handling pool chemicals to avoid injury.
•If a spill occurs, wash the affected area with fresh water immediately and
seek medical attention.
•Work in a well-ventilated area and avoid inhalation of fumes.
•Read and follow safety instructions on chemical drums.

Page 4
Operation Following a Power Failure
The Ozone Chemigem unit comes with a timer function built into the operating software
and is backed-up by a Real-Time Clock (RTC) similar to those found in computers.
During a power failure the Ozone Chemigem 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 Chemigem will keep all its settings and will not need to be re-
programmed. The Ozone Chemigem is ideal for use in systems where repeated power
cuts occur, such as off-peak power circuits and Queensland’s Tarriff33 system.
Basic Requirements –the Pool Owner
Your Ozone Chemigem maintains pool water biological safety by controlling the pH and the
ORP (sanitation level). It achieves this by dosing the necessary chemicals into the pool in a
controlled manner. The chemical drums must be checked on a regular basis –empty
drums will lead to poor balance and incorrect operation.
To achieve water safety effectively and efficiently there are other water balance factors that
must be maintained by the pool owner. The most important water balance factors are
described on the next page.
Failure to maintain these aspects of pool water balance can lead to poor water quality and
incorrect/unusual operation of the Ozone Chemigem unit.
In the case of incorrect or unusual operation the pool water must be tested and any
balance problems corrected. After this is done it may also be necessary to clean the Probe
–this is part of the unit maintenance, see page 21.
Minerals –can they be added to the pool?
Your Ozone Chemigem is compatible with minerals (magnesium and/or potassium
chlorides). Liquid chlorine will form small amounts of magnesium hydroxide which is a
flocculant. It is the magnesium hydroxide that acts to keep the water clearer than other
pools and also has the “transdermal health effects” claimed in literature.
As the potassium salt has no obvious benefit it is suggested that magnesium chloride only
need be added to the pool. A magnesium ion concentration of 100ppm is suggested as a
starting point. All magnesium chloride salts readily available are based around magnesium
flakes (the hexahydrate form). To add 100ppm simple use the following formula:
Weight of magnesium flakes = 0.8kg x volume (in 1000’s Litres)
Example: a 30,000L pool will need 0.8 x 30 = 24kg
Note: magnesium sulphate (eg Epsom salts) are NOT RECOMMENDED.

Page 5
Initial pool balance
Before you begin using the Ozone Chemigem make sure your pool water is balanced as
follows:
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 –needs to be 50ppm
If the pool is outdoors, it is vital that stabiliser (also known as cyanurate and cyanuric acid)
be added and maintained at 40ppm to 60ppm. 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.
Good stabiliser level keeps good chlorine levels and reduces maintenance.
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. Be very careful
with acid as it can be harmful and corrosive.
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.
When Controlling a Saltwater Chlorinator
Follow the directions for the initial balance for your SWC unit –the difference is likely to
only be the addition of salt or minerals. Note that the Ozone Chemigem unit will turn the
power to the SWC unit on and off –the SWC unit must be capable of functioning in this
manner and should be set to manual operation only (not automatic).

Page 6
Installation Guide
Choosing a good location
The Ozone Chemigem is manufactured from weather resistant materials and is designed
for operation in full sun and rain. However, your Ozone Chemigem will benefit if it is
protected from the weather. The Ozone Chemigem Power Supply should not be mounted
close to 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 Chemigem Controller
Locate the Ozone Chemigem Controller close to the filtration pump so that it may be
connected easily. Connect the Ozone Chemigem Controller to the mains power outlet of
the pool area and make sure this outlet meets all applicable Australian Standard at the
time of installation.
Mount the Ozone Chemigem Controller 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.
The PUMP socket outlet in the base of the Ozone Chemigem 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.
Your Ozone Chemigem has two other power outlets on its base, which can be used to run
lighting or an SWC unit (or other pool equipment). These outlets are also timed, so
accessories can be set to turn on and off automatically.
Installing the Injection/Probe Manifold –keep the Y-piece close to the
manifold
The injection/probe manifold should be installed on the return (pressure) side of the pump,
after any accessories such as heaters, but before the venturi injector. Make sure the Y-
piece is installed close to the manifold and that gas loops are vertical as this will
trap any gas from chemical mixing.
Installing the Probe into the Injection Manifold
The probe has a bayonet fitting. To install the probe, simply insert it into the injection
manifold and twist to lock the bayonet fitting. Ensure that the o-ring seal is not twisted or
out of place.
Chemical drums
Position the chemical drums in a safe and secure location, preferably about 2 metres from
the Ozone Chemigem. Ensure you have the right chemicals for your pool and that
chemicals have been diluted if necessary (See page 3 for safe chemical handling).
Make sure that the correct pump is connected to the correct chemical drum!

Page 7

Page 8
Installing the Feed Tubing to the Chemical drums
Cut lengths of tubing that will reach from the base of the valves or dose pumps to the base
of the chemical drum. Make sure the chemical drums are in a safe and secure location,
preferably about 2 metres from the Ozone Chemigem.
Connect one end of a tube to the inlet side of the valve or dose pump (the direction of flow
is indicated by an arrow on a label or the front cover of each dose pump.)
Drill an 8mm hole in the lids of the chemical drums 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.
Connect the correct pump to the correct chemical drum.
Before placing the tubing into the drum, measure the tubing against the outside of each
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.
Connecting the Dose Pumps –Outlet Side
The injection/probe manifold comes with a Y-piece and gas loops already installed.
Cut lengths of tubing that will reach from the base of each dose pump to the injection
manifold tubing. Connect one end of the tubing to the outlet side of the dose 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 one of the loops near the injection manifold.
Make sure the gas loops are vertical as this will trap any gas from chemical mixing.
Installing 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 close to the ozone outlet od the unit.
After installation the Injector must be set to create as vacuum. With the pump running the
valve must be closed until a hissing sound is heard from the venturi. Check the pool
returns for a good amount of air bubbles returning to the pool.

Page 9
The Chemigem Front Panel and Operational Buttons
ON Button
Turn the System on Manually
Press the ON button once to switch the Ozone Chemigem and the pool pump on manually.
The Ozone Chemigem will default back to AUTO and turn itself off automatically at the end
of the next programmed FILTER CYCLE (and this time will be displayed on the LCD).
Increasing Manual Run-time in Hourly Increments
Press the ON button 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 the ENT button to confirm your selection and the system will
commence operation.
ESC/OFF Button
Turn the System Off Manually
If the Ozone Chemigem and pool pump are running, pressing this button will turn them off
manually. The Ozone Chemigem will automatically turn on again at the start of the next
FILTER CYCLE (and this will be displayed on the LCD).
Return to Home Screen
If you have unintentionally accessed an Ozone Chemigem Menu that you don’t actually
require, pressing the ESC/OFF button allows you to return to the home screen at any time.
ENT Button
Use this button to enter the Ozone Chemigem Menu system and to access the various
options in each Menu. Use the Y/UP and N/DOWN buttons to scroll through menu options
and when your desired menu option is displayed on the LCD, press ENT to access that
option.
Y/UP Button and Optional Pool Light
If you have accessed the Ozone Chemigem Menu by pressing the ENT button, press the
Y/UP button to scroll upwards through the various menu options. Some menu options will
prompt a yes or no answer. If you wish to answer “yes”, press the Y/UP button.
If your Ozone Chemigem also controls your pool lighting, 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.
The D10 has 5 buttons that allow you to control its
functions. Each button is labelled with its primary
function. Secondary functions are labelled within
an outline next to the button. Buttons are backlit to
show activity, with the ESC/OFF button always
available to take you back to the home screen.

Page 10
The Ozone Chemigem Display
Line 1 shows the current time and the mode of operation.
In the example above, line 1, tells you that the time is 3:27pm and the Ozone
Chemigem is operating in “Normal Automatic mode”
Note that the Ozone Chemigem displays the time using a 24-hour clock.
Line 2 shows timer information.
In the example above, line 2 tells you that the “unit is turned ON and will turn
OFF automatically at 21:00 (9pm)”
Line 3 displays ORP (Chlorine) information.
In the example above, line 3 tells you that the current ORP is 670mV with the
unit set to provide 650mV
Line 4 displays pH information.
In the example above, line 4 tells you that the current pH is 7.5 with the unit set
to provide 7.6.
Navigating the Ozone Chemigem Menu System
There are three aspects to the general Ozone Chemigem Menu system –the Timer Menu,
the ORP (Chlorine) Menu and the pH Menu. Access the Ozone Chemigem Menu 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.
The D10 uses a four-
line LCD display to
provide the user with
information.

Page 11
Timer Menu
Setting the time
Once you have installed your Ozone Chemigem and turned it on, you will need to set the
correct time on the Chemigem 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.
ADJUST CYCLES Sub-Menu
Your Ozone Chemigem has two filter cycles pre-programmed as factory defaults as
follows:
Filter Cycle 1: ON at 07:00 (7am) OFF at 10:00 (10am)
Filter Cycle 2: ON at 18:00 (6pm) OFF at 21:00 (9pm)
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 Chemigem
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.
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 Advanced
Settings Menu. For details on how to access this menu, please refer to the Advanced
Settings Manual (available to download from www.poolcontrols.com.au).

Page 12
Optional LIGHT Timer Sub-Menu
You can use your Ozone Chemigem to 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 Chemigem Menu 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 Chemigem is 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.
Running Times
We recommend your system be operated for at least 4 hours per day and always run
the system when using the pool.
As sunlight destroys chlorine, it is recommended that the Ozone Chemigem 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. 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
ORP (Chlorine Menu)
Accessing the ORP Menu
Access the Chemigem Menu System by pressing ENT. Use the Y/UP or N/DOWN button
to scroll through the main menu until ORP MENU is displayed on the LCD. Press ENT to
select.
Manual Feed
Having accessed the ORP menu, the LCD will ask “Manual Feed Y/N?”. Press Y/UP to
select and (on solenoid valve models) the display will read “FEED 5 Sec/50mL”. On
dosing pump models the display with read “FEED 5 mins/75mL”
You can increase the amount of the dose by pressing the Y/UP button until the desired
dose amount is displayed. (Note: the dose volume displayed is an estimate only)
Press ENT and (depending on which model you have) either the solenoid valve or the dose
pump will commence feeding liquid chlorine.
Adjusting the Set Point
The ORP Set Point is the value in millivolts that the Chemigem will adjust your pool water
to. You can adjust the ORP Set Point via the ORP Menu.
Enter the ORP Menu as described above and press the N/DOWN button when asked
whether you wish to do a manual feed and then again when asked if you wish to do a
superchlorination (not all units). The LCD will then read “ADJUST SET POINT Y/N?”
Press Y/UP to select this option and then the LCD will display the current set point. Adjust
this using the Y/UP or N/DOWN buttons. Confirm the adjusted set point by pressing ENT.
The new set point will then be displayed on the right-hand side of line 3 of the LCD.
SWC (AUX) Settings –for control of a Saltwater Chlorinator
The SWC (AUX) is off by default. To turn it ON simply press Y/UP. You will then be
prompted to keep the chlorine dose pump ON too. If you only require the SWC unit to be
enabled press N/DOWN to disable the automatic chlorine dosing pump –note that it is still
available for manual dosing. Otherwise press Y/UP to allow automation of both systems.
There is a Delay value that can be adjusted from 0 to 60 minutes (default 30 minutes) –
this delays the activation of the dose pump for a period after the unit starts.
When both systems are enabled the chlorine dosing is designed to only dose after the
delay period and when the ORP has fallen far below the set point. This means that the
chemical dosing will occur at times of high demand or very low residual.
Adjust ORP Control On or Off
To disable the ORP System (or re-enable it if it has been disabled) you need to access the
ORP menu and work your way through the MANUAL FEED, SUPER CHLOR and ADJUST
SET POINT questions –pressing the N/DOWN button in response to each question.
The LCD will then read “ADJUST ORP CONTROL TURN OFF? Y/N” (if the system is ON)
or ADJUST ORP CONTROL TURN ON? Y/N” (if the system is OFF). If you press Y/UP,
the system will turn on (or off depending on its current status). If you answer N/DOWN to
either question, the LCD will return to the home screen.

Page 14
pH Menu
Accessing the pH Menu
Access the Chemigem Menu System by pressing ENT. Use the Y/UP or N/DOWN button
to scroll through the main menu until pH MENU is displayed on the LCD. Press ENT to
select.
Manual Feed
Having accessed the pH menu, the LCD will ask “Manual Feed Y/N?”. Press Y/UP to
select and the display (on solenoid valve models) will read “FEED 5 Sec/50mL”. On
dosing pump models the display with read “FEED 5 mins/75mL”
You can increase the amount of the dose by pressing the Y/UP button until the desired
dose amount is displayed. (Note: the dose volume displayed is an estimate only).
Press ENT and (depending on which model you have) either the solenoid valve or the dose
pump will commence feeding.
Adjusting the Set Point
The pH Set Point is the pH that the Chemigem will adjust your pool water to. You can
adjust the pH Set Point via the pH Menu.
Enter the pH Menu as described above and press the N/DOWN button when asked
whether you wish to do a manual feed. The LCD will then read “ADJUST SET POINT
Y/N?” Press Y/UP to select this option and then the LCD will display the current set point.
Adjust this using the Y/UP or N/DOWN buttons. Confirm the adjusted set point by pressing
ENT. The new set point will then be displayed on the righthand side of line 3 of the LCD.
Calibration and Re-setting Factory Defaults
If your Chemigem consistently displays a pH reading different from that obtained by
manual testing with a quality test kit, it may be necessary to re-calibrate the multi-electrode
(probe). The instructions below assume the probe is measuring a pH of 7.8.
Caution: do NOT re-calibrate the probe until identical pH readings have
been obtained from at least three tests from around the pool. You will need
to calibrate the probe to the pH value obtained from these test kit results.
Enter the pH menu as described previously and press the N/DOWN button when asked
whether you want to do a manual feed, and then again when asked whether you wish to
adjust the set point.
The LCD will then read “CALIBRATE PROBE?”. Press Y/UP to select this option and the
LCD will read “PROBE Ph = 7.8 ADJUST TO +0.0”. Use the Y/UP button to increase the
adjusted value to the required level. Press ENT to confirm the adjustment and after a few
seconds the Chemigem will revert to normal operation and the home screen will display the
new pH value.
Adjust pH System On or Off
To disable the pH System (or re-enable it if it has been disabled) you need to access the
pH menu and work your way through the MANUAL FEED, ADJUST SET POINT and
CALIBRATE PROBE questions –pressing the N/DOWN button in response to each
question.
The LCD will then read “ADJUST pH CONTROL TURN OFF? Y/N” (if the system is ON) or
ADJUST pH CONTROL TURN ON? Y/N” (if the system is OFF). If you press Y/UP, the

Page 15
system will turn on (or off depending on its current status). If you answer N/DOWN to
either question, the LCD will return to the home screen.
Note: Turning off the supply of acid is not normally necessary and could lead to
unbalanced pool water that is unsafe to swim in. Pool Controls recommends that you seek
advice from a qualified professional prior to disabling the pH system –or call Pool Controls
Service on [phone].

Page 16
Ozone Chemigem Status Indicators, Warnings and Safety
Features
Normal Operation –Green Status Indicators
When the Ozone Chemigem is operating normally and ORP and pH readings are within
the correct range, a green status indicator will be illuminated and the LCD will indicate the
readings.
Note: it is the pool owner’s responsibility to monitor the pool and periodically
confirm the Chemigem readings with a good quality test kit. Remember that the
Chemigem is only able to balance pH and Chlorine levels –but you need to ensure
other factors such as stabiliser levels and total alkalinity are within the correct range
(see page 5 for details).
Low Chlorine
If the ORP falls significantly below the set point, this indicates that the chlorine levels in the
pool have fallen and dangerous pathogens in the water are not being destroyed rapidly.
The Ozone Chemigem will warn of low chlorine/ORP with a red status indicator and the
word “low” will be displayed on the ORP line (line 3) of the LCD.
Possible causes include:
•An empty chlorine drum
•Faulty dose pump
•Low levels of stabiliser
•High pH
•Filter requires backwashing
•The multi-electrode (probe) may require cleaning (see page 21 for details)
If each of these factors is addressed, the Ozone Chemigem will dose the pool with chlorine
until the set level is achieved –at which point the status indicator will revert to green and
the warning will no longer be displayed on the LCD.
High Chlorine
If the ORP rises significantly above the set point, a red status indicator will be illuminated
and the word “High” will appear on the ORP line (line 3) of the LCD.
Possible causes include:
•Manual overdosing
•Faulty dose pump –check the squeeze tubes
•The multi-electrode (probe) may require cleaning (see page 22 for details)
•Low pH (too much pool acid)
•High Total Dissolved Solids (TDS)
There is no simple way to reduce high chlorine levels quickly. However, chlorine levels will
eventually reduce over a few days, particularly if the pool is exposed to sunlight.

Page 17
Low pH –(Excess Acid)
If the pH of the water drops below the set point, a red status indicator will be illuminated
and the words “LOW pH” will be displayed on the LCD.
Safety Shutdown
If the pH falls below 5.8 the Chemigem will shut down pump operation to ensure no more
acid gets into the pool.
The Chemigem will automatically prevent any further acid being added to the pool until the
pH is brought back into the correct range by the addition of sodium carbonate or sodium
bicarbonate.
Possible causes include:
•Manual overdosing
•Excessive rainfall
•Faulty solenoid valve or dose pump
•The multi-electrode (probe) may require cleaning (see page 21 for details)
•Low Total Alkalinity
•Poor pool water circulation
High pH –(Insufficient Acid)
If the pH rises significantly higher than the set point, a red status indicator will be
illuminated and the words HIGH pH will be displayed on the LCD.
Note that a high pH can drastically reduce the ORP of the pool water, and therefore reduce
the effectiveness of the sanitiser. It is important to restore the pH balance as soon as
possible by adding acid to the pool.
Possible causes include:
•The acid drum is empty
•The pool has been superchlorinated recently
•The pool has a new plaster lining (very alkaline) demanding more acid than can
be supplied by the Chemigem
•Faulty solenoid valve
•Filter requires backwashing
•Multi-electrode (probe) may require cleaning (see page 21 for details)
•Injector nozzle is blocked
•Venturi system (if fitted) is blocked
If each of these factors is addressed, the Ozone Chemigem will dose the pool with acid
until the set level is achieved –at which point the status indicator will revert to green and
the warning will no longer be shown on the LCD.

Page 18
Maintenance
Like all equipment the Ozone Chemigem will look better and last longer if it is maintained
and operated in accordance with these instructions.
The Ozone Chemigem Power Supply
The Power Supply has been designed for operation in full sun and weather. However, it will
benefit from being under cover. There is little maintenance required however –some Do’s
and Don’ts –
Don’t:
•Install it in a small sealed enclosure (so it does not overheat)
•Install it in a very hot unventilated shed (so it does not overheat)
•Allow insects to nest in the unit (because they will prevent it from functioning)
•Install chemical drums under or close to the unit (to prevent corrosion)
•Forget about the unit once installed –it should be checked regularly to ensure
that it is working for you
Do:
•Install it as per the instructions
•Check it regularly
•Make sure the pool balance is checked regularly
Cleaning the Multi-electrode (Probe)
If the Ozone Chemigem is consistently giving readings different from those obtained from a
test kit, it may be necessary to clean the multi-electrode. To do this:
•Remove the probe from the injection point by twisting the bayonet (or if fitted with
a tapping band, by unscrewing the retaining nut) and remove the o-ring.
•Holding the cable, gently swirl the probe in a dilute solution of hydrochloric acid
(pool acid) for two minutes
•Rinse the probe in clean water and then replace it in the injection point, making
sure that the “o-ring” is in place.
•Twist bayonet to lock (or tighten nut with fingers)
Troubleshooting
Before requesting service, you may wish to run through the check list below but feel free
to call Pool Controls Service on [phone] or log a service call via our website –
www.poolcontrols.com.au.
If there appears to be low or no Chlorine Residual:
1. Check stabiliser level is 40ppm –60ppm. Add if necessary and wait for it to dissolve.
2. Have you added any chemical additives recently?
3. Check pool for phosphates and remove if necessary
4. Is the unit turned on and operating the filter pump?
5. If the unit is not running at all, check the fuse in the bottom of the unit.