Pentair Posi-Chlor-15 User manual

OWNER’S MANUAL
SALT WATER CHLORINATOR
POSI-CHLOR®
Should the installer or owner be unfamiliar with the correct installation
and/or operation of this type of equipment, please contact the distributor
or manufacturer for the correct advice before proceeding with the
installation or operation of this product.
PENTAIRPOOL.COM.AU

PURCHASED FROM:
PURCHASE DATE:
SERIAL NO:
MODEL NO:
IMPORTANT
Please attach your sales invoice/docket here as proof of purchase should warranty service be
required. Please do not return warranty form to Pentair Australia - Retain for your records.

Posi-Chlor® Salt Water Chlorinator Owner’s Manual 1
TABLE OF CONTENTS
1. GENERAL DESCRIPTION ..................................................................................................2
1.1 Product range .........................................................................................................3
1.2 Technical specifications.......................................................................................... 3
1.3 Recommendations and Safety Precautions ............................................................4
2. PREPARING THE SWIMMING POOL...................................................................................5
2.1 Adding salt to the water ..........................................................................................5
2.2 Chemical balance of the water ................................................................................6
3. INSTALLATION OF THE EQUIPMENT ................................................................................7
3.1 Contents of Package............................................................................................... 7
3.2 Installation of Electrolysis Cell ................................................................................9
3.3 Mounting of the Control Centre ..............................................................................10
3.4 Connection of pH peristaltic pump kit ....................................................................10
3.5 ADVANCED kit (pH/ORP) ......................................................................................... 11
3.6 Hydraulic Connection Diagram...............................................................................12
3.7 Electrical wiring diagram.......................................................................................14
4. START-UP AND ADJUSTMENTS .................................................................................... 16
4.1 Display and Control.................................................................................................16
4.2 Main Menu ..............................................................................................................18
4.3 Configuration .........................................................................................................19
4.4 Chlorine menu ....................................................................................................... 24
4.5 pH Menu (Advanced) .............................................................................................. 25
4.6 pH Menu (predictive algorithm).............................................................................. 27
4.7 Filter Pump ...........................................................................................................28
4.8 Time......................................................................................................................29
4.9 Temperature Probe ...............................................................................................29
5. TROUBLESHOOTING...................................................................................................... 30
5.1 Warning messages and alarms..............................................................................30
5.2 Operation time ...................................................................................................... 33
5.3 Electrolysis cell life ............................................................................................... 33
6. MAINTENANCE.............................................................................................................. 34
6.1 Cleaning the electrolysis cell.................................................................................34
6.2 Checking and maintenance of the ORP probe (OPTIONAL).....................................34
6.3 Checking and maintenance of the pH probe .......................................................... 35
7. SPARE PARTS ................................................................................................................36
7.1 Power Center Spares............................................................................................. 36
7.2 Electrolysis Cell Spares......................................................................................... 37

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1. GENERAL DESCRIPTION
Thank you for purchasing the Posi-Chlor® salt water chlorinator, which will enable you
to enjoy your swimming pool in perfect conditions, without the need to add any chemical
disinfectants.
The salt water chlorination system produces chlorine directly from the pool water by means
of electrolysis of the salt water. “Free chlorine” (hypochlorous acid, HClO) is produced which
is a strong disinfectant.
Saline electrolysis is a reversible process, meaning that once active elements react with
organisms present in the water, it reverts to common salt and water.
The equipment includes an electronic monitoring and regulation control and an electrolysis
cell through which the pool water flows and which is installed in the filtration circuit.
ATTENTION
Before installing the salt water chlorinator, please read this manual carefully.
If you need to clarify any point or have any doubts, please contact your dealer.
Eco Select®
The Eco Select® brand identies our most eco-friendly products
As the global leader in pool and spa equipment, we’ve made a strong commitment to develop
and offer the most environmentally responsible products available.
When you see the Eco Select® brand on one of our products, you’ll know it is our “greenest”
and most ecient product in that equipment category.
These products do the best job of saving energy, conserving water, reducing noise, or other-
wise contributing to a more environmentally responsible equipment system. In every case, a
product that earns the Eco Select brand is clearly our “greenest” and most ecient choice.

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1. GENERAL DESCRIPTION
1.1 Product range
You will find various models within our range, depending on its production and features.
1.1.1 Posi-Chlor® BASIC
• Chlorine production from 15 to 35g/h.
• Advanced features and data display through an LCD screen.
• Adjustable output.
• Filtration pump control with built-in battery backed-up timer.
• Upgradeable to Auto-pH or Advanced pH/ORP with optional kit.
1.1.2 Posi-Chlor® PH
• Chlorine production from 15 to 35g/h.
• Advanced features and data display through an LCD screen.
• Adjustable output.
• Filtration pump control with built-in battery backed-up timer.
• Included acid-dosing peristaltic pump.
• Automatic algorithm based dosing of acid to correct pH (no probe).
• Upgradeable to Advanced pH/ORP with optional kit.
1.1.3 Posi-Chlor® AUTO-PH/ORP
• Chlorine production from 15 to 35g/h.
• Advanced features and data display through an LCD screen.
• Adjustable output.
• Filtration pump control with built-in battery backed-up timer.
• Included acid-dosing peristaltic pump.
• pH and ORP readings from included probes.
• Automatic control of chlorinator and pH based on readings from the included probes.
1.2 Technical specications
Models Posi-Chlor®-15 Posi-Chlor®-25 Posi-Chlor®-35
Supply Voltage 230-240VAC, 50Hz
Chlorine Production 15g/hr 25g/hr 35g/hr
Maximum Power 112.5W 187.5W 263W
Cell Current
Dimensions 280x250 x135mm 280x250x135mm 280x250x135mm
Weight 4Kg 4Kg 4Kg
Protection IP65 IP65 IP65
Max. Temperature 40 C 40 C 40 C

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1.2.1 Common features in all Posi-Chlor® equipment
• Adjustment of chlorine production by switched mode power supply
• Power supply performance >90%
• Automatic switch-off owing to lack of water flow.
• Automatic switch-off owing to the accumulation of gas in the cell, with automatic restart
once the water flow is restored.
• Automatic voltage adjustment depending on the concentration of salt and the
temperature, keeping continuous chlorine production.
• Automatic cleaning cycle of electrodes.
• Automatic restart in the event of supply failure.
1.3 Recommendations and Safety Precautions
• The equipment should always be installed by qualified professionals.
• Disconnect the equipment from the mains before performing any
assembly or maintenance operation
• The Posi-Chlor® chlorinator must be connected to a GPO that is supplied through a
residual current device (RCD) having a rated residual operating current not exceeding
30 mA.
• It is important to ensure that the supply cables of the electrolysis cell
are tightly connected, otherwise the equipment could overheat and break down.
• Ensure that the heat-sink wings (in the rear part of the equipment) are not blocked and
that air can easily circulate through them.
• For optimum results, you should ensure the correct hydraulic operation of your
swimming pool equipment.
• Equipment housing has IP65 protection. However, it is highly recommended not to install
the equipment directly exposed to sunlight.
• Corrosive environments may reduce the lifespan of the equipment. Do not leave open
containers with acids or other chemicals near the equipment.
• This appliance is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety.
• Children should be supervised to ensure that they do not play with the appliance.
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent
or similarly qualified persons in order to avoid a hazard.
1. GENERAL DESCRIPTION

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2.1 Adding salt to the water
To ensure that the chlorinator works correctly, a small amount of salt should be added and
the pH level should be suitable.
The recommended salt and pH levels are the following:
Note: When using mineral salts, ensure total salt concentration is as per the above table,
however it is necessary to ensure that mineral salt blend does not allow total magnesium
chloride to exceed 1000ppm.
Although the equipment will start to operate with lower amounts of salt, the optimum
production of salt will be reached with concentrations of over 3000ppm. We recommend
starting with a concentration of 4000ppm to offset small losses of salt occurring when
backwashing the sand filter, the effect of rainfall, spillover, etc.
To calculate the salt to be added, multiply the total volume (m) of your swimming pool x 4kg.
Example: A swimming pool measuring 9m in length x 4m in width x 1.4m in depth, using an
Posi-Chlor®;
9 x 4 x 1.4= 50.4 m (cubic meters)
50.4 x 4 = 201.6 kg
Therefore approximately 200kg of salt needs to be added.
We recommend using salt that is especially prepared for use in salt water chlorination
installations, as it is especially prepared for rapid dissolution and to achieve optimum
results. You can find it at retailers specializing in swimming pool products.
2. PREPARING THE SWIMMING POOL
Salt Concentration
(Range)
Salt Concentration
(Ideal) pH
3000-8000ppm 3500ppm
7.2 - 7.63-8kg/m3 3.5kg/m3
3-8g/L 3.5g/L
ATTENTION
When adding salt to the swimming pool, first disconnect the chlorinator (or
turn it OFF), and start-up the filter for 3 or 4 hours, in order for the salt to fully
dissolve and not to overload the equipment. Once dissolved, switch on the
chlorinator.
It is advisable to add salt to the swimming pool gradually, in 2 or 3 lots, so as not
to exceed the recommended amount. Excess salt can overload the chlorinator,
in which case it will automatically stop working and water will have to be added
to reduce the concentration.
We also recommend not to add salt near the suction points (skimmer, drains), to
avoid undissolved salt from circulating in the water circuit.

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2. PREPARING THE SWIMMING POOL
2.2 Chemical balance of the water
The effectiveness of chlorination and the quality of water for healthy bathing, depends
largely on the pH of the water. Therefore, it should be checked regularly and adjusted as
necessary.
There are other parameters which should be considered for the correct operation of the salt
water chlorinator. We recommend an in-depth analysis of the water when installing a salt
water chlorinator.
Parameter Units Minimum Value Maximum Value
PH 7.2 7.6
Free Chlorine ppm 1.0 4.0
Combined Chlorine ppm 0.0 0.6
Total Bromine ppm 3.0 6.0
ORP mV 650 750
Cyanuric Acid
(Stabiliser) ppm  <30
Total Alkalinity ppm 80 120
Calcium Hardness ppm 200 500
Copper ppm 0.0 0.1
Iron ppm 0.0 0.1
Phosphates ppm 0.0 0.1

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3. INSTALLATION OF THE EQUIPMENT
3.1 Contents of Package
3.1.1 Posi-Chlor Basic Kit
The pH Kit or pH/ORP kit can be added to any Posi-Chlor® series basic unit. The following
figures show the parts of the Basic kit.
3.1.2 Posi-Chlor pH Kit
The Auto pH/ORP kit can be added to any Posi-Chlor® series pH unit. The following figures
show the parts of the Posi-Chlor® series pH unit.
1 2
1 2
4 5 6
7
3
8

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1 2
9
4 5 6
7
3
8
10
11
12 13
14 15
3.1.3 Posi-Chlor Auto pH/ORP Kit
3. INSTALLATION OF THE EQUIPMENT
3.1.4 Parts
1. Posi-Chlor® Control Centre
2. Electrolysis Cell
3. Peristaltic Pump (For Acid Delivery)
4. Suction Tube (Flexible)
5. Injection Tube (Rigid).
6. Saddle Clamp (For Acid Delivery).
7. Suction lter (place vertically on the bottom of the acid container)
8. Injector (place with the arrow facing downwards)
9. pH Probe
10. ORP Probe
11. Probe Holders
12. Saddle Clamp (For pH Probe).
13. Saddle Clamp (For ORP Probe).
14. pH4 Calibration Liquid
15. pH7 Calibration Liquid

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3. INSTALLATION OF THE EQUIPMENT
3.2 Installation of Electrolysis Cell
• Place the chlorine cell in a vertical position with electrical connections on the top. If
this is not possible, it can be assembled in a horizontal position, with the addition of the
optional flow switch.
• Place the chlorination cell in the highest position possible of the filtration circuit and
always after the filter.
• If there is a heater present, install the chlorination cell after the heater, with a check
valve before the cell.
• For below water installation, ensure there are corresponding shut-off valves to facilitate
maintenance of the cell.
• Do not place the pH or ORP probe after, or too near, the chlorinator cell, as faulty
readings could be made owing to the proximity of the electrolysis circuit.
• The pH and ORP probes should be installed after the filter.
• If it is not possible to keep probes a minimum distance from the cell, after the filter they
can be installed before the filter. However, in this case more frequent maintenance of
the probe may be required (see "Maintenance" for further info).
• A good earth connection is essential. Ensure equipotential bonding of pool structure,
bond beam, metal pool fencing and any pool equipment that is not double insulated to
water circuit (e.g. heaters).
WATER
IN
WATER
IN
WATER
OUT
WATER
OUT
OK WITH
FLOW SWICH

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3. INSTALLATION OF THE EQUIPMENT
3.3 Mounting of the Control Centre
• It is highly recommended that the control centre unit be installed where it is protected
from the elements. Although inherently protected from rain (IP rated), continued expo-
sure to rain and sunlight will accelerate the aging of the unit.
• It should also be mounted in a position where it is away from accidental water spray.
• The unit should be installed so that adequate air ow can circulate freely around the
control centre and allow it to perform eciently.
• The control centre is to be mounted at least 800mm above ground level.
• If the control centre is installed in an enclosed room, acid and other chemical containers
should not be present in the same room, unless the room is adequately ventilated.
1. A printed template is included in the Posi-Chlor kit. Place the template on the wall where
you wish to mount the control centre.
2. Using a pencil or pen, mark the position of the four mounting holes.
3. Drill holes in the wall using a suitable drill bit for the wall material (e.g. timber, brick, plas-
terboard, fibre-cement).
4. Insert plugs into holes for all wall types except timber.
5. Insert screws with screwdriver until screw head is approximately 5mm from the wall.
6. Place Posi-Chlor power centre over the four screws taking care to line up with the
mounting holes.
7. Let the power centre drop to lock into the slots above mounting holes.
3.4 Connection of pH peristaltic pump kit
Once the equipment from section 3.2 and 3.3 is installed, the following connections should
be done.
1. Place the saddle clamp (6) on the pipe as indicated in the hydraulic connection diagram
(3.6.3). The saddle clamp corresponds to the injector and should be connected after the
electrolysis cell. Make sure the o-ring is in the groove on the top of the clamp, sealing
the pipe to the saddle clamp.

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3. INSTALLATION OF THE EQUIPMENT
2. When the saddle clamp is in position, drill a hole in the PVC pipe. Using the threaded port
as a guide. Use a 10mm drill bit, careful not to touch the threads.
3. Connect one end of the suction tube (4) to the peristaltic pump (3) inlet.
4. Connect the other end of the suction tube (4) to the suction filter (7).
5. Place the suction filter (7) inside the ACID drum.
6. Connect one end of the injection tube (5) to the peristaltic pump (3) outlet.
7. Place the pipe adaptor and injector (8) inside the saddle clamp's threaded port.
8. Connect the other end of the injection tube (5) to the injector (8).
3.5 ADVANCED kit (pH/ORP)
The equipment continuously measures the bactericide level of water through this probe, by
means of an "ORP" probe. Simply adjust the required level and the equipment automatically
maintains the level of disinfection by adjusting the production of chlorine to the real needs
of the swimming pool. The screen shows the ORP level (bactericide capacity) present in the
swimming pool.
The ORP (Oxidation Reduction Potential) is the electrical voltage that indicates the oxidation
capacity or reduction of a solution. In swimming pools, the oxidation capacity is directly
related to the bactericide power of the water, which is directly related to the concentration
of free chlorine in the pool. This probe enables you to adjust the equipment in AUTOMATIC
operating mode.
1. Place the saddle clamp (12) in the pipe as indicated in the hydraulic connection diagram.
The saddle clamp (12) corresponds to the PH probe and should be connected before the
electrolysis cell and after the filter. Make sure the o-ring is in the groove on the top of
the clamp, sealing the pipe to the saddle clamp.
2. When the saddle clamp is in position, drill a hole in the PVC pipe. Using the threaded port
as a guide. Use a 10mm drill bit, careful not to touch the threads.
3. Place the probe holder (11) inside the flange (12).
4. Place the PH probe (9) inside the probe holder (11).
5. Place the PH probe (9) connector in the BNC connector on the base of the control centre.
6. Place the saddle clamp (13) in the pipe as indicated in the hydraulic connection diagram.
The saddle clamp (13) corresponds to the ORP probe and should be connected before the
electrolysis cell and after the filter. Make sure the o-ring is in the groove on the top of
the clamp, sealing the pipe to the saddle clamp.
7. When the saddle clamp is in position, drill a hole in the PVC pipe. Using the threaded port
as a guide. Use a 10mm drill bit, careful not to touch the threads.
8. Place the probe holder (11) inside the flange (13).
9. Place the ORP probe (10) inside the probe holder (11).
10. Place the ORP probe (10) connector in the BNC connector on the base of the control
centre.

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3. INSTALLATION OF THE EQUIPMENT
3.6 Hydraulic Connection Diagram
3.6.1 Basic Unit, No Heater
3.6.2 Basic Unit, With Heater
From pool
skimmer /
main drain
To pool
returns
Backwash
to sewer
Backwash
to sewer
Check-valve
To pool
returns
From pool
skimmer /
main drain

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3. INSTALLATION OF THE EQUIPMENT
3.6.3 Advanced Unit, No Heater
3.6.4 Advanced Unit, With Heater
From pool
skimmer /
main drain
To pool
returns
Backwash
to sewer
Pool
Acid
pH
Sensor
ORP
Sensor
Acid
Injection
Dosing
Pump
Backwash
to sewer
Check-valve
From pool
skimmer /
main drain
pH
Sensor
ORP
Sensor
To pool
returns
Pool
Acid
Acid
Injection
Dosing
Pump

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3. INSTALLATION OF THE EQUIPMENT
3.7 Electrical wiring diagram
1 3 5 7 9 11 13
2 4 6 8 10 12 14
N L SW1 SW2 pH1 pH2 RLY OUT FILTER
CELL
Terminal Description Notes
Earth Earth Connections Pre-wired in factory.
N, L 230-240VAC Supply Pre-wired in factory.
SW1, SW2 On/Off Switch Input
Bypassed in factory. Remove loop
between SW1 and SW2, to connect
automation.
pH1, pH2 Acid Pump Output (230VAC) Connection for acid dosing pump.

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3. INSTALLATION OF THE EQUIPMENT
Terminal Description Notes
RELAY OUT Filter Pump Output (230VAC) Pre-wired in factory.
FILTER Not Used in Australian Version Pre-wired in factory.
1 & 2 Acid level sensor Not Used.
3 & 4 Pool cover input Connection from pool cover control
(optional).
5 Water Sensor / Gas Sensor Connection to water sensor in cell
(white cable).
5 & 6 External Flow Switch
Connection to external ow switch
(optional). Also, activate in the
conguration menu.
7 & 8 Temperature Probe Connection to water temperature
sensor (optional)
9 & 10 ORP Sensor Pre-wired in factory.
11, 12, 13, 14 Not used
Class A Equipment:
This device is classified as Class A equipment
Warning: Operation of this equipment in a residential environment could cause radio
interference.

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4. START-UP AND ADJUSTMENTS
4.1 Display and Control
Once the Posi-Chlor® salt water chlorinator has been installed, you can start up your salt
water chlorination equipment. Follow the instructions carefully.
The following sections detail the operation of different models.
4.1.1 Display and Main Screen
The Posi-Chlor® series equipment has an LCD screen, in which you can view and configure
all operations of the equipment. On starting up the equipment, a screen will be displayed
with the main parameters.
a
h
c
f
g
b
e
i
Cl: 0% 0.0V 19øC
ORP: 750mV Manual
pH: 7.0 F.Pump OFF
>Menu 12:12
d
OK
Cl: 0% 0.0V 19øC
ORP: 750mV Manual
pH: 7.0 F.Pump OFF
>Menu 12:12
3
4
3
1
2

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When browsing through the menus, an arrow is displayed on the left hand side >which
indicates the selected line.
When there is more than one line to select, the buttons enable you to move the arrow
up or down to select the required option. The OK button confirms selection.
When a value has to be adjusted, for example the time or level of chlorine, the buttons
enable you to increase or decrease the value. Press the OK button to confirm the value.
4. START-UP AND ADJUSTMENTS
Key Description Notes
1Alarm Light Will ash when there is an alarm condition. It may
also ashes briey during menu selections.
2LCD Screen For setting and displaying parameters. Also see a-j.
3 Up and Down Buttons Used for navigating the menu's and altering values.
4OK Button Entering Menu. Conrming selections.
aChlorine Production Level Displays the current product level 0-100%.
bCell Voltage Displays the cell voltage.
cWater Temperature Displays the current water temperature (with
optional water temperature sensor).
dOperating Mode Displays the selected operating mode; manual,
semi-auto or auto. Default is Manual
eFilter Pump Status Displays the status of the lter pump On or Off.
fORP Level Displays the current ORP reading (with advanced
pH/ORP kit only).
gpH Level Displays the current pH reading (with advanced pH/
ORP kit only).
hMenu Press OK to access menu.
iClock Displays the current time.

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4. START-UP AND ADJUSTMENTS
4.2 Main Menu
The following table shows how to organise the configuration menu of the equipment:
Main Menu Sub Menu Default Notes
Conguration
Language English Use to change display
language.
Control Manual (Basic & pH).
Auto (Adv. pH/ORP).
Cleaning 6 Hours Use to select cleaning
cycle (reversing) time.
Volume 20m3 Use to select pool
volume.
Outdoor / Indoor Outdoor Use to select pool
location.
Cover N Use to select option pool
cover input switch.
Flow Switch N Use to select optional
ow switch.
Acid Alkali This option cannot be
changed.
pH Alarm Y Use to select optional pH
alarm.
Chloride Alarm N Alarm detects if there is
no change in ORP after 2
hours of SCG operation.
Buzzer N Turns on audible buzzer
with associated alarms.
Chlorination % of production 50% Select chlorine output of
cell 0-100%.
Max ORP / Cl 700 ORP set point value.
Super chlorination Off Super-chlorination
function.
pH pH +/- 7.3 pH set point value.
Probe Calibration For probe calibration on
initial start-up.
Manual Pump Priming Press to manually run pH
dosing pump