Grundfos Selcoperm SES 125-2000 User manual

Selcoperm SES 125-2000
Electrolysis system for 110-1800 g/h Cl₂ (equivalent)
Installation and operating instructions
Selcoperm SES 125-2000
Installation and operating instructions
(all available languages)
http://net.grundfos.com/qr/i/QR99619753
GRUNDFOS INSTRUCTIONS

Selcoperm SES 125-2000
English (GB)
Installation and operating instructions ..........................................................4
Deutsch (DE)
Montage- und Betriebsanleitung .............................................................48
Español (ES)
Instrucciones de instalación y funcionamiento ...................................................97
Français (FR)
Notice d'installation et de fonctionnement .....................................................149
Ελληνικά (GR)
Οδηγίες εγκατάστασης και λειτουργίας........................................................198
Polski (PL)
Instrukcja montażu i eksploatacji ............................................................248
Português (PT)
Instruções de instalação e funcionamento .....................................................297
Română (RO)
Instrucţiuni de instalare şi utilizare ...........................................................346
Русский (RU)
Паспорт, Руководство по монтажу и эксплуатации.............................................393
Slovensko (SI)
Navodila za montažo in obratovanje .........................................................447
Українська (UA)
Інструкції з монтажу та експлуатації ........................................................494
中文 (CN)
安装和使用说明书 .......................................................................544
日本語 (JP)
取扱説明書............................................................................. 587
China RoHS ...........................................................................631
EU declaration of conformity .............................................................632
UK declaration of conformity .............................................................633
Ukrainian declaration of conformity ........................................................634
Operating manual EAC ..................................................................636
3
Table of contents

English (GB) Installation and operating instructions
Original installation and operating instructions
Table of contents
1. Information for USA, Canada, Mexico.............4
1.1 Limited warranty ...........................4
1.2 Directions for use...........................5
2. General information ........................5
2.1 Scope of this document .......................5
2.2 Target group..............................5
2.3 Hazard statements..........................5
2.4 Notes ..................................6
2.5 Symbols on the product.......................6
2.6 Abbreviations .............................6
3. Information about Selcoperm 125-2000 TÜV
versions and Non-TÜV versions ................6
4. Safety instructions .........................7
4.1 Working with chemicals .......................7
4.2 Electrical hazards ..........................7
5. Storage and handling .......................8
5.1 Storage.................................8
5.2 Transport................................8
5.3 Scope of delivery...........................8
5.4 Unpacking ...............................8
6. Product description ........................8
6.1 Selcoperm electrolysis system...................8
6.2 Selcoperm electrolyser .......................9
6.3 System overview ..........................10
6.4 Piping and instrumentation diagram (PID)...........12
6.5 Safety concept ...........................13
6.6 Process description ........................14
7. Technical data ...........................15
7.1 Selcoperm electrolysis system..................15
7.2 Selcoperm electrolyser ......................16
8. Installation .............................20
8.1 Installation examples .......................20
8.2 Installation requirements .....................25
8.3 Electrical connection........................29
9. Commissioning ..........................30
9.1 Checks before commissioning..................30
9.2 Brine tank commissioning ....................30
9.3 Water softener commissioning..................30
9.4 Checking the mains water supply ................30
9.5 Initial startup ............................31
9.6 Check of voltage, amperage and air flow readings .....32
9.7 Checking and adjusting the air flow...............32
9.8 Alarms ................................32
10. Operation ..............................33
10.1 Display and control ........................33
10.2 Menu structure ...........................34
10.3 Login to service menu / operating hours ............34
10.4 Enter or change values ......................34
10.5 Main menu - F1...........................35
10.6 Messages - F2 ...........................35
10.7 Service menu - F3 .........................35
10.8 Operating hours - F4 .......................37
10.9 Automatic operation ........................38
11. Decommissioning ........................38
11.1 Short-term shutdown (up to 4 weeks) .............38
11.2 Shutdown for periods over 4 weeks ..............38
11.3 Flushing and draining the system ................38
12. Maintenance ............................39
12.1 Safety instructions .........................39
12.2 Recommended service parts...................39
12.3 Special tools ............................39
12.4 Basic maintenance schedule (users) ..............40
12.5 Advanced maintenance schedule (qualified service
persons) ...............................42
13. Fault finding ............................45
13.1 High voltage of electrolysis cell .................45
13.2 Low voltage of electrolysis cell..................45
13.3 Control cabinet temperature failure ...............45
13.4 Temperature of electrolysis cell is too high ..........45
13.5 Ventilation failure MIN .......................45
13.6 Ventilation failure MAX ......................46
13.7 NaClO solution storage tank filling level is too high .....46
13.8 NaClO solution storage tank filling level is too low......46
13.9 Water flow failure..........................46
13.10 Leakage in electrolysis chamber and hydraulic chamber..46
13.11 Leakage NaClO solution tank ..................46
13.12 Degassing column failure (production) .............46
13.13 Degassing column failure (commissioning) ..........46
13.14 System is suddenly switched off.................47
14. Disposing of the product ....................47
1. Information for USA, Canada, Mexico
1.1 Limited warranty
Products manufactured by Grundfos Pumps Corporation (Grundfos)
are warranted to the original user only to be free of defects in
material and workmanship for a period of 24 months from date of
installation, but not more than 30 months from date of manufacture.
Grundfos' liability under this warranty shall be limited to repairing or
replacing at Grundfos' option, without charge, F.O.B. Grundfos'
factory or authorized service station, any product of Grundfos
manufacture. Grundfos will not be liable for any costs of removal,
installation, transportation, or any other charges that may arise in
connection with a warranty claim. Products which are sold, but not
manufactured by Grundfos, are subject to the warranty provided by
the manufacturer of said products and not by Grundfos'
warranty. Grundfos will not be liable for damage or wear to products
caused by abnormal operating conditions, accident, abuse, misuse,
unauthorized alteration or repair, or if the product was not installed
in accordance with Grundfos' printed installation and operating
instructions and accepted codes of good practice. The warranty
does not cover normal wear and tear. To obtain service under this
warranty, the defective product must be returned to the distributor or
dealer of Grundfos' products from which it was purchased together
with proof of purchase and installation date, failure date and
supporting installation data. Unless otherwise provided, the
distributor or dealer will contact Grundfos or an authorized service
station for instructions. Any defective product to be returned to
Grundfos or a service station must be sent freight prepaid;
documentation supporting the warranty claim and/or a Return
Material Authorization must be included if so instructed. Grundfos
will not be liable for any incidental or consequential damages,
losses, or expenses arising from installation, use, or any other
causes. There are no express or implied warranties, including
merchantability or fitness for a particular purpose, which extend
beyond those warranties described or referred to above. Some
jurisdictions do not allow the exclusion or limitation of incidental or
consequential damages and some jurisdictions do not allow
limitations on how long implied warranties may last. Therefore, the
above limitations or exclusions may not apply to you. This warranty
gives you specific legal rights and you may also have other rights
which vary from jurisdiction to jurisdiction. Products which are
repaired or replaced by Grundfos or authorized service center
under the provisions of these limited warranty terms will continue to
be covered by Grundfos warranty only through the remainder of the
original warranty period set forth by the original purchase date.
4
English (GB)

1.2 Directions for use
Selcoperm SES 125-2000 is a complex device used to create
sodium hypochlorite from salt, water and electricity (provided by the
user).
The following sections within this manual contain the directions for
use.
Related information
8.2 Installation requirements
8.3 Electrical connection
9. Commissioning
10.5 Main menu - F1
10.7 Service menu - F3
11. Decommissioning
12. Maintenance
13. Fault finding
14. Disposing of the product
2. General information
Read this document before you install the product.
Installation and operation must comply with local
regulations and accepted codes of good practice.
The documentation delivered with the Selcoperm electrolysis
system comprises:
• Installation and operating instructions for Selcoperm
• Wiring diagrams (in control cabinets)
The complete documentation package must be available at the
installation location at all times.
2.1 Scope of this document
The Selcoperm electrolysis system comprises a number of
components. The core component is the Selcoperm electrolyser
with control cabinet.
Further components required for the system are:
• brine tank
• NaClO solution storage tank
• ventilation pipework
In addition, a chiller or heater can be required to achieve the
specified water inlet temperature. All mentioned components can be
purchased from Grundfos.
This document contains detailed information on the core
components and their installation, and on general requirements for
additional components and their installation. The requirements for
components and their installation described in this document must
be adhered to, no matter if the components were purchased from
Grundfos or not.
2.2 Target group
2.2.1 Qualification and training
The persons responsible for installation, startup, operation and
maintenance must be appropriately qualified for these tasks. Areas
of responsibility, levels of authority and the supervision of the
persons must be precisely defined by the operating company. If
necessary, the persons must be trained.
Operating company
The company or person who owns the system is referred to as
"operating company" in this document. The operating company has
to coordinate the installation of the system in agreement with
Grundfos. After installation, commissioning must be done by
qualified service persons.
Qualified service persons
The persons responsible for commissioning, parametrisation and
advanced maintenance of the system are referred to as "qualified
service persons" in this document. These persons must be trained
and qualified for these tasks by Grundfos.
Users
The persons responsible for operation and basic maintenance of
the system are referred to as "users" in this document. The users
must be trained for their tasks by qualified service persons.
2.2.2 Obligations of the operating company
• Observe the local safety regulations.
• Make sure that the regulations for the prevention of accidents
are observed at the installation location.
• Keep the documentation package available at the installation
location at all times.
• Prepare the installation location according to the installation
requirements specified in this document.
• Obtain official approval for storing chemicals, if necessary.
• Make sure that the users are trained before operating the
system.
• Provide the stipulated safety equipment and personal protective
equipment.
• Make sure that the labels supplied by the manufacturer with the
system are displayed visibly at the installation location.
• Provide the passwords for the operating software only to the
persons who have received an appropriate technical training.
• Arrange regular maintenance.
Related information
8.1.1 Standard installation example 1
2.2.3 Obligations of the qualified service persons
• Read this manual thoroughly before putting the system into
operation.
• Observe the recognised health and safety regulations as well as
the accident prevention regulations.
• Wear protective equipment in accordance with national health
and safety regulations when working on the system and
handling chemicals.
• Meet the installation requirements specified in this document.
• Perform installation and commissioning in accordance with the
knowledge and documents received during the training at
Grundfos.
• Train the users in performing the user relevant maintenance
tasks mentioned in this document.
• Parametrise the system according to on-site requirements
during commissioning.
Related information
8.1.1 Standard installation example 1
2.2.4 Obligations of the user
• Read this manual thoroughly before putting the Selcoperm
system into operation.
• Read all documents delivered in the documentation package
thoroughly before installation, operation, commissioning,
maintenance, service or storage of the Selcoperm system.
• Obtain instructions from Grundfos specialists on all service work
relating to the system.
• Observe the recognised regulations for health, safety and
accident prevention.
• Wear protective equipment in accordance with the national
health and safety regulations when working on the system and
handling chemicals.
• Keep secret the passwords for the operating software.
2.3 Hazard statements
The symbols and hazard statements below may appear in Grundfos
installation and operating instructions, safety instructions and
service instructions.
DANGER
Indicates a hazardous situation which, if not avoided, will
result in death or serious personal injury.
5
English (GB)

WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious personal injury.
CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate personal injury.
The hazard statements are structured in the following way:
SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning
• Action to avoid the hazard.
2.4 Notes
The symbols and notes below may appear in Grundfos installation
and operating instructions, safety instructions and service
instructions.
Observe these instructions for explosion-proof products.
A blue or grey circle with a white graphical symbol
indicates that an action must be taken.
A red or grey circle with a diagonal bar, possibly with a
black graphical symbol, indicates that an action must not
be taken or must be stopped.
If these instructions are not observed, it may result in
malfunction or damage to the equipment.
Tips and advice that make the work easier.
2.5 Symbols on the product
This symbol indicates a danger of electric shock.
This symbol indicates a potentially explosive atmosphere
(ATEX zone).
All signs and symbols on the product must be observed and
maintained legible.
Observe also the manuals for built-in components.
2.6 Abbreviations
Abbreviatio
nText Description
LEL Lower
Explosive Limit
The lowest concentration
(percentage) of a gas in air capable
of producing a flash of fire in
presence of an ignition source.
NaClO Sodium
hypochlorite
The disinfectant produced by the
Selcoperm system is a sodium
hypochlorite solution.
3. Information about Selcoperm 125-2000 TÜV
versions and Non-TÜV versions
Selcoperm SES 125-2000 systems are available in 2 different
versions:
• TÜV versions: Systems in installations that are in conformity
with TÜV demands can be TÜV certified.
• Non-TÜV versions: Systems in installations that are not in
conformity with TÜV demands cannot be TÜV certified.
Distinguishing features
Selcoperm SES
125-2000 version Features
TÜV version
• with hydrogen hose centering piece
• with air flow measuring piece
• DN 100 ventilation pipework
• Venturi-tee with flange
Non-TÜV version
• without hydrogen hose centering piece
• without air flow measuring piece
• DN 80 ventilation pipework
• Venturi-tee without flange
For TÜV conformity, a hydrogen hose centering piece (11b) and an
air flow measuring piece (12c) must be installed in the ventilation
pipework. See the installation examples and section Piping and
instrumentation diagram (PID).
An annual check of the air flow must be carried out with an external
air flow measuring device.
Further differences:
• The air flow scale values differ. See section Setpoints.
• For Non-TÜV versions, the air flow scale must be corrected after
a reset. See section Adjusting the air flow scaling.
• The information about ATEX conformity in section Safety
concept refers to TÜV versions only. See section Safety
concept.
• The degassing column design differs. See section Selcoperm
electrolyser.
• The outlet flange for the ventilation pipework differs. See section
Hydraulic connections.
Related information
6.3.1 Selcoperm electrolyser
6.4 Piping and instrumentation diagram (PID)
6.5 Safety concept
7.1.6 Hydraulic connections
7.2.1 Setpoints
9.7.1 Adjusting the air flow scaling
6
English (GB)

4. Safety instructions
Non-observance of the safety instructions may have dangerous
consequences for persons, the environment and the product.
4.1 Working with chemicals
WARNING
Chemical hazard
Death or serious personal injury
‐Wear the stipulated personal protective equipment
(protective clothing, goggles, respirator etc.) when
handling chemicals.
‐Observe the chemical manufacturer's safety data
sheets (MSDS) and safety instructions of the used
chemicals.
Make sure that parts in contact with the chemicals are
resistant to the chemicals under operating conditions.
If you have questions regarding the material resistance,
please contact Grundfos.
Make sure that leaking chemicals do not cause personal
injury or damage to property.
The installation of leak monitoring equipment and drip
trays is recommended.
4.1.1 Personal protective equipment
Due to the variety of hazardous chemicals, any information
provided in this section is only general. We recommend to follow
good practice when handling chemicals, to use personal protective
equipment such as ventilated, enclosed goggles, face shields,
chemical aprons, boots and gloves, and to install an eye shower.
4.1.2 Sodium hypochlorite solution
The concentration of the sodium hypochlorite (NaClO) solution
produced by the Selcoperm electrolysis system is below 1 %.
CAUTION
Corrosive substance
Minor or moderate personal injury
‐Sodium hypochlorite is alkaline and causes oxidisation
and bleaching. It is corrosive and can cause damage
to skin or clothing.
‐Always wear protective clothing and goggles when
handling chemicals.
• If splashed onto skin, wash off with fresh water. Remove all
affected clothing.
• If the eyes are affected, rinse them immediately using an
approved eye shower or fresh running water for at least 15
minutes, keeping the eyelid open and rotating the eye. Seek
medical treatment immediately.
• If swallowed, do not induce vomiting. Keep the patient warm and
quiet and seek immediate medical help. If the patient stops
breathing, apply rescue breaths and cardiopulmonary
resuscitation as necessary, until medical help arrives.
Warning notices advising users of the possible dangers should be
prominently displayed wherever sodium hypochlorite is stored,
generated or handled.
WARNING
Chemical hazard
Death or serious personal injury
If acid is mixed with sodium hypochlorite solution, highly
hazardous chlorine gas is released.
‐Keep acid away from the sodium hypochlorite solution
and the degassing and storage tank.
‐Display a warning notice locally.
4.1.3 Hydrogen gas
The electrolytic process of converting brine into sodium hypochlorite
(NaClO) solution generates hydrogen gas, which is diluted and lead
to a safe external discharge point by means of forced ventilation.
The NaClO solution storage tank as well as all vent piping should
be regularly checked to ensure that no gas leakages occur.
DANGER
Danger of explosion
Death or serious personal injury
‐When checking the system for gas leakages, use
hydrogen detectors. Do not use a match or a flame.
Hydrogen is an explosive gas and lighter than air. When liberated in
a room, hydrogen accumulates beneath the ceiling. Ensure natural
ventilation at a high and a low level in the room where the
electrolyser is installed.
A sign that prohibits smoking and naked flames must be displayed
in the room and at the point of discharge to the exterior.
If it is not possible to pipe the hydrogen hose horizontally to the
outside of the building a gas warning system for hydrogen must be
installed at the installation location to stop the Selcoperm
electrolysis system in case of a build-up of hydrogen gas. This
avoids the situation of a user working in a potentially explosive
environment.
4.1.4 Hydrochloric acid
Hydrochloric acid is used to remove deposits from the electrodes
(acid cleaning).
WARNING
Chemical hazard
Death or serious personal injury
‐Wear the stipulated personal protective equipment
(protective clothing, goggles, respirator etc.) when
handling chemicals.
‐Observe the chemical manufacturer's safety data
sheets (MSDS) and safety instructions of the used
chemicals.
• If splashed onto skin, wash off with fresh water. Remove all
affected clothing.
• If the eyes are affected, rinse them immediately using an
approved eye shower or fresh running water for at least 15
minutes, keeping the eyelid open and rotating the eye. Seek
medical treatment immediately.
• If swallowed, do not induce vomiting. Keep the patient warm and
quiet and seek immediate medical help. If the patient stops
breathing, apply rescue breaths and cardiopulmonary
resuscitation as necessary, until medical help arrives.
WARNING
Chemical hazard
Death or serious personal injury
If acid is mixed with sodium hypochlorite solution, highly
hazardous chlorine gas is released.
‐Keep acid away from the sodium hypochlorite solution
and the degassing and storage tank.
‐Display a warning notice locally.
Acid cleaning has to be performed strictly in accordance with the
instructions in this manual.
Related information
12.5.5 Acid cleaning
4.1.5 Brine
Avoid contact with eyes. If the eyes are affected by brine splashes,
rinse them immediately with fresh running water.
4.2 Electrical hazards
DANGER
Electric shock
Death or serious personal injury
‐Before carrying out maintenance or repair work on the
system make sure that the system has been
satisfactorily isolated.
7
English (GB)

5. Storage and handling
Observe the supplier documents for the components. All
supplier documents are part of the documentation
package delivered with the system.
5.1 Storage
• Observe the permissible ambient conditions.
• The storage location must be protected from rain, humidity,
condensation, direct sunlight and dust.
• The system must be drained completely. Observe the special
requirements for the system components specified in the
supplier documents.
• Maximum storage time: 2 years from delivery.
Related information
7.1.3 Ambient conditions
5.2 Transport
• Wear the stipulated personal protective equipment.
• Observe the permissible ambient conditions.
• The system must be drained completely.
• Use appropriate lifting and transporting devices.
• Make sure that the freight does not sustain any point load during
transport.
• Avoid strong impact loads.
• Before lifting check the centre of gravity of the freight.
TM074249
Centre of gravity
• If using forklifts, use forks that are long enough to cover the
entire depth of the freight.
Related information
7.1.3 Ambient conditions
5.3 Scope of delivery
The system is shipped in several packages:
• Selcoperm electrolyser
• Venturi tee
• Hydrogen hose
• Hydrogen hose centering piece
• Air flow measuring piece
• NaClO solution storage tank level sensor
• Warning labels
5.4 Unpacking
• Mount as soon as possible after unpacking.
• Observe the permissible ambient conditions.
Related information
7.1.3 Ambient conditions
6. Product description
6.1 Selcoperm electrolysis system
6.1.1 Applications
The Selcoperm electrolysis system is a modular system for the safe
production of a 0.5 - 0.65 % sodium hypochlorite solution from a
diluted brine solution. The system is suitable for the disinfection of
drinking water and industrial process water. The intended use of the
Selcoperm system comprises the stationary operation either in
continuous or batch processing.
6.1.2 Inappropriate usage
Applications other than those described in section Applications are
not in accordance with the intended use and are not permitted. The
manufacturer, Grundfos, accepts no liability for any damage
resulting from incorrect use.
The system comprises state-of-the-art components and has
undergone safety-related testing.
CAUTION
Unauthorised structural modifications
Unauthorised structural modifications to the system may
result in serious personal injury and damage to
equipment.
‐Do not dismantle, modify, change the structure of,
bridge, remove, bypass or disable components,
including safety equipment.
Related information
6.1.1 Applications
6.1.3 Components
Selcoperm electrolyser
The electrolyser includes:
• A water softener to facilitate a water supply of the correct
specification to the brine tank for providing the brine solution,
and also to the electrolysis cell for dilution of the brine solution
to the correct specific gravity (SG). The softener is water
powered.
• A brine pump to dose the brine solution into the softened water
line to the electrolysis cell.
• An electrolysis cell to convert the brine solution and softened
water into a sodium hypochlorite solution of up to 0.65 %.
• A control cabinet to facilitate the low voltage/high current DC
supply used in electrolysis.
• Operating elements monitoring and controlling the generation of
sodium hypochlorite.
• An electrical fan system to dilute the hydrogen gas generated,
and to force the ventilation of the gas to a safe external
discharge point.
External components
The external components include:
• A brine tank providing a saturated brine solution. The saturated
brine is mixed with soft water for electrolysis, and used for
regeneration of the water softener.
• A NaClO solution storage tank designed to store the sodium
hypochlorite solution. This tank provides the buffer storage
facility from which dosing can take place.
Safety and monitoring equipment
The Selcoperm electrolysis system is fitted with the following safety
and monitoring equipment:
• Main switch on the electrolyser control cabinet which serves as
an emergency stop at the same time. Further emergency stops
can be installed on components or in the room, if necessary.
• Leakage detection
• Transparent cover on electrolysis chamber
• Flow sensors, level sensor and temperature sensors
• Ventilation system with flow sensor for safe hydrogen removal.
8
English (GB)

6.2 Selcoperm electrolyser
6.2.1 Identification
Nameplate
Made in Germany
UK importer:
943795758098SSSSSSSS
1
2
3
4
7
9
8
5
6
TM082260
Pos. Description
1 Type designation
2 Product number
3 Serial number
4 Allowed medium, capacity
5 Voltage, Frequency
6 IP class
7 Factory code and production code (year and week)
8 Country of origin
9 Marks of approval
6.2.2 Type key
Example: SES-250-M/G-GB
Type Nominal capacity [g/h]
125 110
250 220
500 450
1000 900
2000 1800
Connection
Mmetric
Supply voltage, frequency
G220-240 V, 50/60 Hz
K 380-415 V, 50/60 Hz
Software language
GB English
DE German
FR French
ES Spanish
PL Polish
RU Russian
CN Chinese
6.2.3 Warranty
The Selcoperm range is fully guaranteed for a period of two
calendar years from installation and commissioning, provided
optimum operating conditions are as detailed in this manual. The
maximum period for full guarantee is 36 months from delivery. The
electrodes are guaranteed time-dependent a further three years.
Grundfos will replace or refurbish the electrodes during this period
at cost of parts, less a percentage that is equal to the expected life
not obtained from the electrodes. If this option is taken, warranty
conditions current at the time of replacement will apply.
100 %
0 %
50 %
0 1 2 3 4 5
A
B
X
Y
TM048510
Selcoperm warranty diagram
Pos. Description
A Full guarantee (system)
B Time-dependent guarantee (electrodes)
X Years for guarantee
Y Percentage of guarantee
A guarantee claim in accordance with our general terms of sale and
delivery is only valid if the following requirements are fulfilled:
• The system is used in accordance with the information within
this manual.
• The system is not dismantled or incorrectly handled.
• The maintenance is carried out by qualified service persons.
9
English (GB)

6.3 System overview
6.3.1 Selcoperm electrolyser
3
8
6
15
7
5
22
22
20
19
17
19
4
14
10
G
H
C
B
D1
E
16b
16a
16c
16d
F
13 13
28
L L
9
22
17
19
C
B
D1
D2
C
N1
N1
N1
B
D1
D2 E
LL
12
A
M
29
TM083049
1 Electrolysis cell 15 Brine injection valve B Soft water outlet to brine tank
2 Degassing column 16a Isolating valve C Mains water inlet
3 Brine pump 16b Isolating valve D1 Brine inlet water softener
4 Water softener 16c Isolating valve D2 Brine inlet dosing pump
5 Water solenoid valve 16d Isolating valve E Waste outlet
6 Flowmeter 17 Internal tray flood switch F Soft water sample valve
7 Non-return valve 19 Air dilution fan G Electrolyte sample valve
8 Water flow adjustment valve 20 Flowmeter switch H NaClO solution sample valve
9 Degassing column level sensor 22 Control cabinet L Ventilation outlet
10 Pressure reducing valve 28 Display and control N1 NaClO solution outlet to tank
13 Air flow sensor 29 Main switch and emergency stop A Hydraulic chamber
14 Brine valve water softener M Electrolysis and degassing chamber
10
English (GB)

6.3.2 NaClO solution storage tank
xxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxx
M1
M1
M3
M2
N2 N2
25
18
18
M
II
M
K
TM074371
M NaClO solution storage tank
M1 Tank cap
M2 Warning label (see figure Area classification in section Safety concept)
M3 Collecting tray
N2 Tank NaClO solution inlet
I NaClO solution overflow
K NaClO solution outlet to point of application
18 Tray flood switch
25 Tank level sensor
Related information
6.5 Safety concept
11
English (GB)

6.4 Piping and instrumentation diagram (PID)
FISA-
LIS+/-
Y01
DP01
LSA+ LSA+
FISA-
FISA+/-
LSA+
F
TSAH
3
21
86 15
7
5
22
194 1410
G
H
C
B
D1
D2
A
I
N1
N2
M
K
E
16b
16a
16c 16d
F
1317
28
L
1 2
29
23
25 18
91120
TT
12
13
11b
12b
12c
11a 12a
30
TM041593
1 Electrolysis cell 13 Air flow sensor A Brine tank
2 Degassing column 14 Brine valve water softener B Soft water outlet
3 Brine pump 15 Brine injection valve C Mains water inlet
4 Water softener 16a Isolating valve D1 Brine inlet water softener
5 Water solenoid valve 16b Isolating valve D2 Brine inlet dosing pump
6 Flowmeter 16c Isolating valve E Waste outlet
7 Non-return valve 16d Isolating valve F Soft water sample valve
8 Water flow adjustment valve 17 Internal tray flood switch G Electrolyte sample valve
9 Degassing column level sensor 18 Tray flood switch of NaClO solution
storage tank H NaClO solution sample valve
10 Pressure reducing valve 19 Air dilution fan I NaClO solution overflow
11 Hydrogen hose 20 Flowmeter switch K NaClO solution outlet to point of
application
11a NaClO solution line 21 Floater valve L Ventilation outlet
11b Hydrogen hose centering piece 22 Control cabinet M NaClO solution storage tank
12 Ventilation line 23 Control lamp of mains supply N1 NaClO solution outlet to tank
12a Venturi tee 25 NaClO solution storage tank level
sensor N2 Tank NaClO solution inlet
12b Tank degassing line 28 Display and control T Ventilation line outlet to atmosphere
12c Air flow measuring piece 29 Main switch and emergency stop
30 Cell temperature switch Interface customer/Grundfos
12
English (GB)

6.5 Safety concept
This section refers to the figure in section Selcoperm electrolyser.
A reliable safety concept for the operation of the whole system is
mandatory, because hydrogen is produced as a by-product in the
electrolysis cell.
Before even entering the internal degassing column (2), most of the
hydrogen is led through the hydrogen hose (11) to the outside of the
building where it is released into the atmosphere. In the degassing
column (2), the residual hydrogen is separated and led away into
the atmosphere as well.
The whole Selcoperm electrolysis system is monitored permanently.
Several sensors at the system ensure a safety shutdown of the
whole system in the event of a failure.
The safety concept is evaluated with technical report by a third-
party expert from TÜV SÜD Product Service GmbH. It ensures safe
operation without any additional explosion protection at the
installation location.
Hydrogen (H2) characteristics
Parameter Value Note
Vapour density under
standard conditions
(0 °C, 1013 mbar)
0.0899 kg/m3
Relative vapour density (air
= 1) 0.0695 Significantly lighter than air
Lower explosive limit 4.0 % by
volume in air
4.65 % by volume in
oxygen
Upper explosive limit 77 % by
volume in air
93.9 % by volume in
oxygen
Ignition temperature 560 °C
Temperature class T1
Explosion group IIC
Max. H2 generation rate in
electrolysis process 0.066 m3/kg chlorine equivalent
Conformity with ATEX directive
The ATEX directive covers devices that can be used in a potentially
explosive atmosphere and/or may contain a potentially explosive
atmosphere. However, the ATEX directive is only applicable, if the
device has a potential source of ignition in its internal zoned area.
The Selcoperm system has internal zoned areas, but the ignition
sources inside the system have been eliminated by design. The
Selcoperm system is not intended for operation in a potentially
explosive atmosphere. Therefore, the Selcoperm system is not
subject to the ATEX directive and must not be ATEX marked. A
declaration of conformity in accordance with the directive is not
applicable.
The following guidelines and standards have been applied:
• Machinery Directive 2006/42/EC
• EN ISO 12100 for the risk analysis
• DIN EN 1127-1 and DIN EN 13463-1 for the identification of
explosion hazards and ignition sources
• (EX-RL) BGR 104, TRBS2152 and DIN EN 60079-10-1 for
zoning and security measures
Furthermore, the explosion safety is ensured by several measures.
Explosion protection by avoiding the explosive zones:
• Preventing or limiting inside the unit
- Piping design and level sensors to ensure liquid filled parts
- Internal degassing column to avoid hydrogen in the NaClO
solution
- Parts containing hydrogen are dual-contained either by the
tight electrolyser housing or by the ventilation line.
• Preventing or limiting to the facility
- All connections are designed as permanently technically
sealed according to DIN EN 1127-1:2011 Appendix B and
TRBS 2152 Part2 2.4.3
- Organisational measures by 100 % FAT, leakage test and
leakage sensors
- If required by local legislation, permanent monitoring of
hydrogen leakage by hydrogen sensors with safety shutdown
• Reduction of the zones through ventilation
- Parts containing hydrogen are dual-contained and forced-
ventilated
- Exhaust gas is diluted outside the building with air down to 1
% by volume. Correct air flow is monitored and leads to
shutdown in case of failure.
SES type
Capacity level
(Cl2 equivalent)
Max. H2
generation
rate
Dilution air to
reach less than 1
% by volume H2
(25 % of LEL)
[g/h] m3/h m3/h
SES-125 110 0.066 6.6
SES-250 220 0.132 13.2
SES-500 450 0.270 27
SES-1000 900 0.540 54
SES-2000 1800 1.080 108
Explosion protection by avoiding ignition sources
• An ignition source analysis and earthing concept was carried out
for the system. All ignition sources inside the system were
eliminated by design. During operation, cell and piping of the
system are filled with liquid. No electrical or moving mechanical
components are implemented.
Safety facts
• Unique safety concept, evaluated with technical report by a
third-party expert from TÜV SÜD Product Service GmbH
• Technically permanently sealed components and thus no zone
in the installation room
• Ignition sources inside the system eliminated by design
• Forced ventilation to dilute H2 by-product inside the system
- Monitoring of the ventilation system
- Pressureless system; no valves after the cell; dangerous
pressure build-up is impossible.
- High quality standard: Every Selcoperm electrolyser is
checked for 100 % performance and tightness at the factory
- Internal degassing column to separate residual hydrogen
from the NaClO solution
- Alarm and safe automatic shutdown of the installation in case
of an error, e.g. drop of flow for dilution
Acceptance test by TÜV is possible for a complete system installed
on site.
Labelling recommendations
The required warning labels are delivered with the system.
A warning label is placed on the outside of the NaClO solution
storage tank near the inspection opening. The purpose of the sign
is to warn people of an explosive atmosphere, so that they can take
the necessary precautions.
Another warning label must be placed at the outlet of the ventilation
line to inform people of the zone radius. This label is delivered with
the system.
SES type
Radius of zone 2 around ventilation line
outlet
[m]
All 0.5
A sign is also placed from the factory on the hydrogen hose
centering piece (11b) in which the hydrogen hose ends and the air
dilution happens. The hydrogen hose centering piece is usually
outside the building.
13
English (GB)

Area classification
1
4
2
3
TM074261
Pos. Description
1 Exhaust-air outlet to atmosphere: Zone 2
2 Inside degassing and storage tank: Zone 2
3 Installation room: no Zone
4 Inside hydrogen hose centering piece: Zone 1
Related information
6.3.1 Selcoperm electrolyser
6.6 Process description
For locating the components, see figures in sections Selcoperm
electrolyser and Piping and instrumentation diagram.
Related information
6.3.1 Selcoperm electrolyser
6.4 Piping and instrumentation diagram (PID)
6.6.1 Selcoperm system
Sodium hypochlorite (NaClO) solution is prepared in a simple batch
process, initiated by the level within the NaClO solution storage
tank (M).
The water for the electrolyser should be supplied to mains water
supply (C) via a double non-return valve. Water enters the system
via an isolating valve (16a). The water passes through a pressure
reducing valve (10) to ensure a regulated pressure throughout the
system. All water then passes through a water softener (4).
Softened water passes into the brine tank (A), via isolating valve
(16b) to produce a brine solution. This is regulated by the floater
valve (21) within the brine tank (A). Saturated brine is then available
for regeneration of the softener (4) via isolating valve (16c), and for
the brine pump (3) via isolating valve (16d).
The process is initiated by the level sensor (25) in the NaClO
solution storage tank (M). When the NaClO solution level falls
below the start-fill level, the water solenoid valve (5) opens, and
allows softened water to flow through the flowmeter (6). When this
water flow raises the magnetic float within the flowmeter (6) the
flowmeter switch (20) is triggered and starts the brine pump (3). The
pump doses saturated brine into this water flow via the injection
valve (15). The resulting diluted brine solution of 20-30 g/l NaCl
passes through the electrolysis cell (1). If no fail safe is triggered, a
voltage is applied across the electrolysis cell (1). When the
electrolysis cell (1) is completely filled with liquid, and the degassing
column level sensor (9) is activated by the liquid, a current flows.
The resulting NaClO solution leaves the electrolysis cell (1) and
enters the transparent degassing column (2). Then it flows into the
NaClO solution storage tank (M).
When the NaClO solution reaches the stop-fill level in the NaClO
solution storage tank (M), the process is stopped. The process is
restarted when the NaClO solution level in the tank (M) falls below
the start-fill level. The process can also be started manually via
control (28).
While the unit is generating the NaClO solution, hydrogen gas
produced in the process is removed in the degassing column (2)
and is passed through a dual-contained seamless pipe (11) to a
safe ventilation discharge point. An air dilution fan (19) is fitted to
dilute the hydrogen gas to a maximum dilution of 25 % of the LEL
(Lower Explosive Limit). The air is blown continually through the
electrolysis and degassing chamber and through the dual-contained
pipework to prevent localised accumulation of hydrogen. An air flow
sensor (13) is fitted to shut down the electrolyser in case of a
blockage or restriction in the ventilation line (12), or if the sealing
cover of the electrolysis and degassing chamber is removed.
The electrolyser is fail safe. In case of faults the display on the
control (28) shows reasons and initiates a potential-free contact for
an output alarm.
6.6.2 Water softener
Hard water contains calcium and magnesium. The water softener
(4) contains resin beads, which hold sodium ions. When hard water
passes through the resin beads inside the water softener, the beads
attract and hold the calcium and magnesium ions in exchange for
sodium. After this ion exchange process, the water is soft.
Once the resin beads are loaded with calcium and magnesium ions,
they must be regenerated so that they can continue to soften water.
The salt in the brine tank (A) mixes with soft water to wash the resin
beads. Only clean, soft water must be used to make the brine. The
brine loosens the hardness minerals that have accumulated on the
resin beads, then the system backwashes and flushes the hardness
minerals away trough waste outlet (E).
Leaky taps and pipes should be repaired to ensure proper
performance of the water softener.
6.6.3 Brine tank
The brine tank is used for preparation and storage of brine.
6.6.4 NaClO solution storage tank
The NaClO solution storage tank is a mandatory component of the
Selcoperm electrolysis system.
The sodium hypochlorite solution can be dosed directly from the
tank to the point of application. In this case, the volume of the tank
must be selected according to the demand of sodium hypochlorite
solution of the individual application. It is also possible to pump the
sodium hypochlorite solution from the NaClO solution storage tank
into separate storage tanks.
14
English (GB)

7. Technical data
7.1 Selcoperm electrolysis system
7.1.1 General data
Sodium hypochlorite concentration 5 - 6.5 g/l (depending on the capacity level)
Salt consumption 4 - 4.5 kg NaCl per kg of Cl2 (equivalent)
Power consumption (AC) Approx. 5.5 - 6.5 kWh per kg of Cl2 (equivalent)
Water consumption 140-170 litres per kg of Cl2 (equivalent)
Water inlet pressure 3-10 bar
Water inlet temperature 10-20 °C (for higher or lower temperatures an external chiller or heater is required)
Soft water quality for operation Drinking water quality, softened to: 1 °dH / 17.8 ppm CaCO3 and less
Max. pressure inside electrolysis cell 0.2 bar
7.1.2 Approvals
The Selcoperm system is certified according to CE, EAC and
Rostechnadzor.
7.1.3 Ambient conditions
Permissible transport temperature [°C]1) -10 to +50
Permissible storage temperature [°C]1) +0 to +40
Permissible operating temperature [°C] +5 to +40
Max. relative humidity, non-condensing [%] 80
Max. altitude above sea level [m] 2000
1) The system must be drained. For storage temperatures below +5 °C, the
whole system including water softener, lines and external components
must not contain any water.
7.1.4 Water quality specification
Make sure that the water supply conforms to the required standard
of drinking water given in the specification below. Ask your local
water supplier for the specific values.
Parameters Value (maximum unless stated
otherwise)
Colour [mg/l Pt/Co] 20
pH value 6.5 - 10.0
Iron Fe [μg/l] 200
Manganese Mn [μg/l] 20
Fluoride F [mg/l] 2
Turbidity [NTU] 4
Max. particle size [μm] 100
7.1.5 Salt specifications
Use food-grade granular/pellet salt (98.5 % NaCl) according to EN
14805 type 2 with following minimum requirements:
Parameter Symbol Max. mass fraction for
dry salt [mg/kg]
Iron Fe 10.0
Manganese Mn 10.0
Bromide Br 100.0
Calcium Ca 100.0
Magnesium Mg 100.0
7.1.6 Hydraulic connections
Selcoperm electrolyser connections
Position of connections see figure in section Selcoperm
electrolyser.
Connection
External pipe
diameter
[mm]
Ventilation outlet (L) for TÜV versions 110
Ventilation outlet (L) for Non-TÜV versions 90
Water inlet (C) 20
Soft water outlet (B) 20
Brine inlet (D1, D2) 20
Waste outlet (E) 32
NaClO solution outlet (N1) 32
NaClO solution storage tank connections
Position of connections see figure in section NaCIO solution
storage tank.
Connection
External pipe
diameter
[mm]
Tank NaClO solution inlet (N2) 32
NaClO solution outlet to point of application (K) 25
Tank level sensor connection 25
Brine tank connections
Position of connections see figure in section Brine tank installation.
Connection
External pipe
diameter
[mm]
Soft water inlet (B1) 20
Brine outlets (D) 20
Related information
6.3.1 Selcoperm electrolyser
6.3.2 NaClO solution storage tank
8.2.4 Brine tank installation
15
English (GB)

7.1.7 Brine tank data
Salt capacity
[kg]
Diameter
[mm]
Height
[mm]
Gravel
requirement
[kg]
Weight (tank +
gravel)
[kg]
Total weight (filled with gravel,
salt and water)
[kg]
150 500 740 25 36 250
300 550 1020 50 73 470
500 770 1030 75 112 810
1000 1050 1040 175 231 1630
7.1.8 NaClO solution storage tank data
Tank volume
[l]
Collecting tray
(height × width × depth)
[mm]
Total height
[mm]
Weight (empty)
[kg]
Weight (filled)
[kg]
300 500 × 1180 × 790 1218 60 350
500 590 × 1300 × 910 1368 81 560
1000 680 × 1600 × 1200 1448 134 1100
2 × 500 670 × 2150 × 915 1503 143 1150
7.2 Selcoperm electrolyser
The Selcoperm electrolyser is available in five capacity levels.
Type Capacity level Cl2 (equivalent)
[g/h]
SES-125 110
SES-250 220
SES-500 450
SES-1000 900
SES-2000 1800
7.2.1 Setpoints
The table shows typical values expected upon commissioning. These values may have to be adjusted due to salt, water and power quality or
availability on site.
No. Setpoint SES-125 SES-250 SES-500 SES-1000 SES-2000
1 Water meter flow [l/h] 19 38 75 140 285
2Adjusted water pressure (at pressure
reducing valve (10)) [bar] 3-4 3-4 3-4 3-4 3-4
3 Water temperature [°C] 10-20 10-20 10-20 10-20 10-20
4Brine flow [l/h]2) 1.7 - 2.1 3.4 - 4.2 6.8 - 8.2 12 - 15.5 24-30
5 Specific gravity of electrolyte [g/ml] 1.02 - 1.022 1.02 - 1.022 1.02 - 1.022 1.02 - 1.022 1.02 - 1.022
6 Conductivity of electrolyte [mS/cm] 44-46 44-46 44-46 44-46 44-46
7 Total sodium hypochlorite solution flow [l/h] 20.7 - 21.1 41.4 - 42.2 81.8 - 83.2 152 - 155.5 309-315
8 Amperage [A] 22-25 44-46 85-95 170-190 310-340
9Voltage [V]3) 27-30 27-30 27-30 27-30 27-30
10 Low-volt alarm [V] 22 22 22 22 22
11 High-volt alarm [V] 34 34 34 34 34
12 Sodium hypochlorite solution strength [g/l] 5-6 5-6 5-6 5.5 - 6.5 5.5 - 6.5
13 Dilution air flow [m3/h] 50-195 50-195 50-195 80-195 110-195
14 Air flow scale (TÜV versions) [m3/h]4) 230 230 230 230 230
15 Air flow scale (Non-TÜV versions) [m3/h] 202 202 202 202 202
2) The brine flow can be different, depending on the saturated brine concentration. It is important to adjust the right salinity.
3) The voltage can be different, depending on the water temperature and the brine temperature.
16
English (GB)

4) Standard values after a reset of the system.
7.2.2 Electrical data
SES-125 SES-250 SES-500 SES-1000 SES-2000
1-phase 1-phase 3-phase + N 3-phase + N 3-phase + N
Voltage [V] 1 × 220-240, ± 10 % 1 × 220-240, ± 10 % 380-415, ± 10 % 380-415, ± 10 % 380-415, ± 10 %
Frequency [Hz] 50/60 50/60 50/60 50/60 50/60
Max. power consumption [kW] 2.2 3.1 4.4 5.8 9.6
Enclosure class IP54 IP54 IP54 IP54 IP54
Protection class I I I I I
Pollution degree 2 2 2 2 2
Switching status of relay outputs
Signal Relay open Relay closed
Running signal System stopped System running
System fault Fault No fault
Leakage signal Liquid in collecting tray of electrolyser or NaClO
solution storage tank
No liquid in collecting tray of electrolyser or NaClO
solution storage tank
Remote stop signal System stopped System running
Emergency stop signal System stopped System running
7.2.3 Materials
System frame PP
Chamber covers PVC, clear
Electrolysis cell tube PVC-U, clear
Internal pipes PVC-U, grey
Seals EPDM / FKM / PVC
Pump dosing heads PVC-U, grey
7.2.4 Water softener
Regeneration
Salt used [kg] 0.45
Regeneration time [min] 11
Water used per cycle [l] 18.9
General data (filled with resin beads)
Shipping weight [kg] 18
Inlet/Outlet connections [inch] 1/4 BSP (male)
Hardness ranges and meter discs
Meter disc number Hardness range Litres between regeneration
cycles
ppm CaCO3 (US) °dH (Germany)
2 92-181 4-8 1103
3 182-269 8-11 736
4 (built in at factory) 270-356 11-15 552
5 357-442 15-19 441
6 443-524 19-23 368
7 525-607 23-27 315
7.2.5 Weight
Selcoperm SES-125 SES-250 SES-500 SES-1000 SES-2000
Empty [kg] 206 208 210 225 235
Filled [kg] 256 258 260 285 295
17
English (GB)

7.2.6 Dimensional drawing
712 1138
1755
92
288
465
207
1570
170
245
320
620
TM083050
18
English (GB)

7.2.7 Field wiring diagram
Product tank and collecting tray
Tray flood switch of Product tank
24 VDC +
Signal
X30:7+
X30:7
Product tank level sensor
24 VDC + (WH)
Signal (GN)
GND (BN)
PE
X40:2+
X40:2
X40:2-
X40:4
Selcoperm control panel
Tray flood switch of Product tank
X3:7+
X3:7
24 VDC +
Signal
Product tank level sensor
X4:2+
X4:2
X4:2-
X4:4
24 VDC + (WH)
Signal (GN)
GND (BN)
PE
110 VAC + / 240 VAC +
110 VAC + / 240 VAC -
Earth
X1:L1
X1:N
X1:PE
Mains power supply
Remote stop 24 VDC+
Remote stop signal
Emergency stop 24 VDC+
Emergency stop signal
Running signal common
Running signal (NO)
System fault common
System fault (NC)
X3:4+
X3:4
X3:5+
X3:5
X5:1
X5:2
X5:3
X5:4
To Customer
telemetry
Single-phase
Three-phase
Selcoperm control panel
Product tank and collecting tray
Tray flood switch of Product tank
24 VDC +
Signal
X30:7+
X30:7
Product tank level sensor
24 VDC + (WH)
Signal (GN)
GND (BN)
PE
X40:2+
X40:2
X40:2-
X40:4
Product tank level sensor
X4:2+
X4:2
X4:2-
X4:4
24 VDC + (WH)
Signal (GN)
GND (BN)
PE
Tray flood switch of Product tank
X3:7+ 24 VDC +
Signal
X3:7
415V + X1:L1
415V +
415V +
415V -
Earth
X1:L2
X1:L3
X1:N
X1:PE
Remote stop 24 VDC+
Remote stop signal
Emergency stop 24 VDC+
Emergency stop signal
Running signal common
Running signal (NO)
System fault common
System fault (NC)
X3:4+
X3:4
X3:5+
X3:5
X5:1
X5:2
X5:3
X5:4
Mains power supply
To Customer
telemetry
TM041495
19
English (GB)

8. Installation
8.1 Installation examples
8.1.1 Standard installation example 1
A
A
A : A
500 - 750
500 - 750
1
7
8
3
2
3
4
≥ 600
≥ 150
≥ 700
11b
12
11
12b
12c
12a
11a
11a
TM041502
(measurements in mm)
1 Dosing pump 11 Hydrogen hose
2 NaClO solution storage tank and collecting tray 11a NaClO solution line
3 Selcoperm electrolyser 11b Hydrogen hose centering piece
4 Brine tank 12 Ventilation line
7 Safe ventilation area 12a Venturi tee
8 Drill hole for ventilation pipework 12b Tank degassing line
12c Air flow measuring piece (for manual measurement)
20
English (GB)