HAYWARD EZ-Chem Salt and Swim Electrolyser Owner’s Manual

HAYWARD EZ-Chem Salt and Swim Electrolyser

Product Information

The product is EZ-CHEMTM, which is a chemical monitoring and dispensing system for pools and spas. It comes with a pH probe and an optional ORP (oxidation- reduction potential) probe to measure the level of chlorine in the water. The system dispenses chemicals such as acid and chlorine into the water based on the measurements of the probes to keep the water balanced and clean. It can be configured to operate in different modes of treatment depending on the user’s preference.

Product Usage Instructions

1. Plug the system into a wall socket using a standard electrical plug.
2. Connect the pH probe to the corresponding BNC socket on the system. If you have an optional ORP probe, connect it to its corresponding BNC socket as well.
3. Configure the system by navigating through the menus using the buttons provided on the system. Choose your preferred language, mode of treatment, and other settings as needed.
4. Calibrate the pH probe by dipping it into a pH 7 buffer solution and pressing the button provided on the system.
5. Once the system is configured and calibrated, it will automatically monitor and dispense chemicals into the pool or spa based on the readings from the probes.
6. If you need to perform any maintenance or repairs on the system, always unplug it from the wall socket first.
7. For more information and to register your product, visit www.hayward.fr/fr/espace-services/enregistrez-votre-produit

WARNING: Electrical Hazard. Failure to follow instructions can result in serious injury or death.

FOR USE WITH RESIDENTIAL SWIMMING POOLS.

WARNING

• Carefully read the instructions that appear in this manual and on the device.
• Failure to comply with the instructions can cause injuries. This document must be given to every pool user who should keep it in a safe place.
• All electrical connections must be carried out by a qualified approved electrician in accordance with the standards currently in force in the country of installation.

WARNING

• Check that the device is plugged into a 230 V socket protected against short circuits.
• The device must also be powered via an isolating transformer or a residual current device (RCD) with a nominal operating residual current not exceeding 30 mA.
• Check that the supply voltage required by the product corresponds to the voltage of the distribution network and that the power supply cables are suitable for the product power supply.
• To reduce the risk of electric shock, do not use an extension cable to connect the device to the mains. Use a wall socket.
• The device must not be used if the power cord is damaged. An electric shock could occur. A damaged power cord must be replaced by the after-sales service or similarly qualified persons to avoid danger.
• Unplug the device from the mains supply before any intervention.
• Ensure that children cannot play with the device. Keep your hands and any foreign object away from openings and moving parts.
• The device must not be used, cleaned or maintained by children over eight years of age or people with reduced physical, sensory or mental abilities or lack of experience or know-how until they have received appropriate instructions and without adequate supervision by a responsible adult to ensure safe handling and avoid any risk of danger. This device must remain out of the reach of children.
• Chemicals can cause internal and external burns. To avoid death, serious injury or damage to equipment: Wear personal protective equipment (gloves, goggles, mask, etc.) when servicing or maintaining this device. This device must be installed in an adequately ventilated place.
• Use only original Hayward parts.

REGISTRATION

Thank you for choosing Hayward. This manual contains important information regarding the operation and maintenance of your product. Please retain it for reference.

TO REGISTER YOUR PRODUCT IN OUR DATABASE, GO TO: www.hayward.fr/en/services/register-your- product

For Your Records

Record the following information for your convenience:

1. Purchase Date_____
2. Complete Name ____
3. Address __
4. Zip code__
5. Email Address__
6. Part number__Serial number__
7. Pool Dealer____
8. Address___
9. Zip code____Country____

GENERAL

EZ-Chem is a device for regulating the pH of your pool. With the addition of an ORP kit (optional), it can also regulate both the pH and the liquid chlorine injection to provide you with a complete treatment. EZ-Chem can treat pools up to 90 m3.

INSTALLATION

Disconnect the pool filter pump before starting the installation. The installation must be carried out in accordance with the standards currently in force in the country. The control box must be mounted a minimum horizontal distance of 3.5 m (or more, if required by local regulations) from the pool and within 1 m of a protected outlet.

Preparing the water in the pool

To prepare the pool water, its chemical composition must be balanced. Certain adjustments to the chemical balance of the pool can take several hours. It is therefore necessary to start the procedure well before switching the unit on.

Chemical water balance

The following table summarizes the concentrations recommended by Hayward. It is important to maintain these concentrations to prevent surface corrosion or deterioration and to derive full benefit from your pool. Control your water regularly. Your authorized Hayward dealer or pool suppliers will provide you with the chemicals you need, together with instructions on how to use them, to adjust the chemical balance of the water in your pool.

CHEMISTRY /RECOMMENDED CONCENTRATIONS

stabilizer if necessary
Total alkalinity| 80 to 120 ppm
Water hardness| 200 to 300 ppm
Saturation index| -0.2 to 0.2 (preferably 0)

Saturation index

The saturation index (Si) gives us information about the calcium content and alkalinity of the water; it is a water balance indicator. Your water is correctly balanced if the Si is 0 ± 0.2. If the Si is below -0.2, the water is corrosive and the coating on the pool walls may be damaged. If the Si is above +0.2, stains may appear. Use the following table to determine the saturation index.

Si = pH + Ti + Ci + Ai – 12.1

Use: Measure the pH of the pool water, the temperature, the water hardness and the total alkalinity. Use the table above to determine Ti, Ci and Ai in the above formula. If the Si is equal to 0.2 or more, stains may appear. If the Si is equal to -0.2 or less, corrosion or deterioration may occur.

Composition

EZ-Chem

(Check that screws are included)

E| Injection valve (3/8” GAS).
F| pH probe
G| Probe holder
H| 3 x saddle clamps for acid injection, flow switch and pH probe.
I| pH 7 and pH 4 buffer solutions
L| Injection valve reducers
M| Flow switch
N| Suction tube ballast
O| Fixing plate

ORP kit for EZ-Chem (optional)

(Check that screws are included)

E| Injection valve (3/8” GAS).
F| ORP Probe (Redox).
G| Probe holder
H| 2 x saddle clamps for acid injection and ORP probe.
I| ORP 465 / 468 calibration solution
K| Fixing plate.
L| Injection valve reducers
N| Suction tube ballast

Installation

EZ-Chem only for pH regulation

EZ-Chem with an ORP kit for pH regulation and liquid chlorine injection

WARNING:  Chemicals can cause internal and external burns. To avoid death, serious injury and/or damage to equipment: Wear personal protective equipment (gloves, goggles, mask, etc.) when servicing or maintaining this device. It must be installed in an adequately ventilated room.

Mount the box (or both boxes if the ORP option is chosen) on the wall using the mounting kit supplied. The box must be installed in the equipment room (dry, temperate, ventilated). Caution, acid vapours and/or chlorine can cause irreversible damage to your device. Position the treatment product tanks accordingly.

The flow switch must be installed on the return pipe directly in line with and upstream of the treatment product injection point. Allow a 25 cm straight section before the flow switch. A hole should previously have been drilled in the pipe to allow the flow switch to pass through. Screw the flow switch (M) into the saddle clamp (H) taking care to seal with Teflon. Then install the clamp on the pipe. The flow switch must be installed in the direction of operation to ensure that it is tripped by the flow from the filter pump.

The probes must be installed on the filter outlet pipe to protect them from debris. A hole should previously have been drilled in the pipe to allow the probe to pass through. Fix the saddle clamp and install the probes in the clamp (H) with the probe (G) provided for this purpose. For the probes to operate, they must be vertical, with the cable upward. The probes must always remain wet. If the probes are allowed to dry, they will be permanently unusable (not covered by the warranty). The treatment products must be injected last over the water return line, after any equipment (heater, etc.). A hole should previously have been drilled in the pipe to allow the treatment product to pass through. Install the saddle clamp (H) and screw the injection valve (E) into the saddle clamp using the adapter (L) provided. Seal with Teflon. Connect the pH probe to the corresponding BNC connector. Connect the ORP/RedoX probe to the corresponding BNC connector (if the ORP option is chosen).

Technical specifications

Electrical connection

1. BNC connector for the pH probe
2. BNC connector for the ORP probe. Must only be connected if the ORP option is chosen (the probe is in the ORP kit).
3. Empty container sensor connection (optional).
4. Liquid chlorine peristaltic injection pump connection (only if the ORP option is chosen).Connect the phase of terminal block 6 to the right-hand terminal of terminal block 4 to perform the bridging. Connect the neutral of the peristaltic pump to the neutral of terminal block 6 and connect the phase to the left-hand terminal of terminal block 4.
5. Flow switch connection. Only the blue and brown wires should be connected. Do not connect the black wire.
6. Main power supply connection (230 V 50 Hz) in conformance with the local standard currently in force.
7. On/Off switch located on the right-hand side of the box.

CONFIGURATION

• To configure the device, simultaneously press and for 5 seconds to display the following screen.

Setting the language

• press then twice, then enter using .
• Select the language using or and confirm with .

Setting the flow switch

• press , then and enter using .
• The parameter must be set to On.
• This parameter must never be set to OFF.

WARNING:  injecting a treatment product when the filter pump is stopped can cause irreversible material damage and/ or serious injuries.

Setting the treatment mode

This device is used to set:

• pH only: pH mode
• disinfectant only (ORP): Redox mode
• both pH and disinfectant (ORP): pH + Rx mode

The Redox or pH+Redox mode can only be activated with the ORP option sold separately. If you do not have the ORP option, please set the device to pH mode only.

To select the treatment mode

• Press then enter using .
• Select the treatment mode using or and confirm with .

Setting the pH set point

• The device must be in pH mode or pH+Rx mode.
• Press three times then enter using .
• Set the pH set point using or and confirm with.
• Ideally, the pH must be set to between 7.2 and 7.6.

Setting the ORP set point (only with the ORP option)

• The device must be in pH+Rx mode.
• Press five times then enter using .
• Set the ORP set point using or and confirm with .
• Ideally, ORP must be set to between 650 and 850.

_ Note: _press twice only in “Redox” mode to set the ORP set point.

Priming the pumps

• Hold down the button to prime the pH pump.
• Hold down the button to prime the disinfectant (Chlorine) pump (only with the ORP option).

Calibrating the probes

pH probe

• Use pH 7 and pH 4 buffer solutions (check expiry date).
• Rinse your probe with tap water before immersing it in the pH 7 solution.
• Hold down the button until the menu appears, then confirm with .
• The menu appears.
• Soak your probe in the pH 7 buffer solution and press .
• Wait until the countdown finishes (60 s) and the screen appears.
• If the quality of the measurement is not 100%, repeat the calibration or replace the probe.
• Rinse your probe with tap water before immersing it in the pH 4 solution.
• Press the button.
• The menu appears.
• Soak your probe in the pH 4 buffer solution and press .
• Wait until the countdown finishes (60 s) and the screen appears.
• If the quality of the measurement is not 100%, repeat the calibration or replace the probe.

ORP Probe (Only with the ORP option)

• Use the 465 / 468 mV calibration solution (check expiry date).
• Rinse your probe with tap water before immersing it in the 465 / 468 mV solution.
• Press when the calibration of the pH probe is finished.
• When the following screen appears confirm with .
• The menu appears.
• Soak your probe in the 465 / 468 mV calibration solution and press .
• Wait until the countdown finishes (60 s) and the screen appears, then confirm with .
• If the quality of the measurement is not 100%, repeat the calibration or replace the probe.

Full configuration overview – Review of the different parameters

• On the  screen, press .
• Press to set the time after which the device will go into alarm mode if the pH set point has not been reached (OFA). Select the time (or off by default) using or and confirm with .
• Press to obtain and press to set the type of corrective product (acid (pH-) or alkaline (pH+)), then confirm with .
• Press to obtain and press to set the pH set point.
• If you have connected the ORP kit (pH + Rx mode), press to obtain and press to set the time after which the device will go into alarm mode if the ORP (Redox) set point has not been reached (OFA). Select the time (or off by default) using or and confirm with .
• Press to obtain and press to set the ORP (Redox) set point using or and confirm with . Ideally, ORP must be set to between 650 and 850.

Restoring the factory settings

Switch the device off and then on again by pressing the and buttons simultaneously.
The menu appears. Press to confirm.
The device is now in its factory configuration. The factory configuration is as follows:

• Treatment mode: pH only
• Language: French
• pH set point: 7.4
• Type of corrective product: Acid
• pH OFA alarm: Off
• Flow switch: On

Troubleshooting guide

As most malfunctions are related to a poor water balance, we advise you to check it before handling the product (see chemical water balance).

“Flow” flashing

|

Insufficient flow or no flow

| Check the operation of the flow switch; if the contact is closed, “FLOW” remains steady, otherwise it flashes.|

The fault automatically disappears once the problem is resolved

Check that the filter pump is working correctly
Check the operating periods on the programming clock
Ensure that all the valves are open
Ensure that the water flows freely in the pipes

OFA Alr (pH)

| Setting time too low| Increase the pH OFA alarm time (20 minutes to 240 minutes)|

Press CAL Enter to remove the fault

Or set the pH OFA alarm to OFF.

Acid container empty| Replace the acid container
Rigid injection pipe blocked or pinched| Inspect the acid injection pipe, replace if necessary

Peristaltic pump problem

| Check pump operation, press the (+) button to force it to operate, replace the pump if faulty
Inspect the membrane, replace if necessary
Difficulty reading the pH or unstable pH| Check the water balance and recalibrate the pH probe
OFA STOP (pH)| pH level not reached after 3 cycle times| See recommendation for pH OFA Alarm| Press CAL Enter to remove the fault

OFA Alr (Rx)

| Setting time too low| Increase the Redox OFA alarm time (20 minutes to 240 minutes)|

Press CAL Enter to remove the fault

Or set the Rx OFA alarm to OFF.

Chlorine container empty| Replace the liquid chlorine container
Rigid injection pipe blocked or pinched| Inspect the chlorine injection pipe, replace if necessary

Peristaltic pump problem

| Check pump operation, press the (-) button to force it to operate, replace the pump if faulty
Inspect the membrane, replace if necessary
Difficulty to read Redox| Check the water balance and recalibrate the ORP probe|
OFA STOP (Rx)| Redox level not reached after 3 cycle times| See Rx OFA Alr recommendation| Press CAL Enter to remove the fault

Parameter error

|

System error

| Restore the default settings|

N/A

Electronic problem, replace the device

Error 7 pH

| pH probe calibration problem| Repeat the calibration|

The fault automatically disappears once the problem is resolved

pH probe faulty| Check the pH probe connection with the BNC connector on the housing, inspect the probe and the cable
pH buffer solution out of date| Obtain a new solution

Error 4 pH

| pH probe calibration problem| Repeat the calibration
pH probe faulty| Check the pH probe connection with the BNC connector on the housing, inspect the probe and the cable
pH buffer solution out of date| Obtain a new solution

Error 465 mV

| Rx probe calibration problem| Repeat the calibration

Rx probe faulty

| Check the connection of the Rx probe with the BNC connector on the housing, inspect the probe and the cable
Rx buffer solution out of date| Obtain a new solution

USE ONLY HAYWARD GENUINE REPLACEMENT PARTS.

LIMITED WARRANTY

• All HAYWARD products are covered for manufacturing defects or material defects for a warranty period of 2 years as of date of purchase. Any warranty claim should be accompanied by evidence of purchase, indicating date of purchase. We would therefore advise you to keep your invoice.
• The HAYWARD warranty is limited to repair or replacement, as chosen by HAYWARD, of the faulty products, provided that they have been subjected to normal use, in compliance with the guidelines given in their user guides, provided that the products have not been altered in any way, and provided that they have been used exclusively with HAYWARD parts and components. The warranty does not cover damage due to frost and to chemicals. Any other costs (transport, labour, etc.) are excluded from the warranty.
• HAYWARD may not be held liable for any direct or indirect damage resulting from incorrect installation, incorrect connection, or incorrect operation of a product.
• In order to claim on a warranty and in order to request repair or replacement of an article, please ask your dealer.
• No equipment returned to our factory will be accepted without our prior written approval.
• Wearing parts are not covered by the warranty.

HAYWARD POOL EUROPE

• 1070 Allée des Chenes – CS 20054 Saint Vulbas – 01154 Lagnieu Cedex – France

Hayward is a registered trademark of Hayward Industries, Inc.
© 2015 Hayward Industries, Inc.

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