Lutz-Jesco EASYZON Dd Series User manual

Dosing
Conveying
Control
Liquids
Gases
Systems
Original operating instructions
© Lutz-Jesco GmbH 2020
BA-62010-01-V01
Read the operating manual!
The user is responsible for installation and operation related mistakes!
Chlorine Dioxide System
EASYZON Dd
Operating Instructions
62003001_3
Hauptansicht EASYZON Dd-D Compact
Chlordioxid-Bereitungsanlage
62003014_4
Hauptansicht EASYZON Dd-D
Chlordioxid-Bereitungsanlage

Table of Contents 3
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200922
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Chlorine Dioxide System EASYZON Dd Operating Instructions
Table of Contents
1 Notes for the Reader ..........................................................4
1.1 General non-discrimination......................................................4
1.2 Explanation of the signal words ................................................4
1.3 Explanation of the warning signs ..............................................4
1.4 Identification of warnings.........................................................4
1.5 Identification of action instructions ...........................................4
2 Safety .................................................................................5
2.1 General warnings.....................................................................5
2.2 Hazards due to non-compliance with the safety instructions .....7
2.3 Working in a safety-conscious manner .....................................7
2.4 Personal protective equipment.................................................7
2.5 Personnel qualification.............................................................7
3 Intended use ......................................................................9
3.1 Notes on product warranty .......................................................9
3.2 Intended purpose.....................................................................9
3.3 Principles ................................................................................9
4 Product description .........................................................10
4.1 Scope of delivery ...................................................................10
4.2 Chlorine dioxide (ClO2) in water treatment...............................10
4.3 Rating plate ...........................................................................12
5 Technical data..................................................................13
5.1 Information notes for safety....................................................13
5.2 Dioxide production room and production reagents storage
room ....................................................................................... 14
6 Dimensions ......................................................................15
7 Installation .......................................................................17
7.1 General Notes........................................................................17
7.2 Installation location................................................................17
7.3 Mechanical installation ..........................................................17
7.4 Pre-dilution circuit .................................................................17
7.5 Additional connections ...........................................................17
7.6 Hydraulic installation..............................................................18
7.7 Electrical installation..............................................................19
7.8 Power cables .........................................................................20
7.9 Grounding..............................................................................21
7.10 Safety instructions ...............................................................21
7.11 Protection fuse of the electronic control unit .........................21
8 General information......................................................... 22
8.1 Description of the keys...........................................................22
8.2 Description of the signals .......................................................22
8.3 Users.....................................................................................22
9 Configuration menu .........................................................23
9.1 Change..................................................................................23
9.2 Bleed.....................................................................................23
9.3 Calibration.............................................................................23
9.4 Menu.....................................................................................24
9.5 Saving and dowloading data ..................................................28
9.6 Information............................................................................28
9.7 Equipment data .....................................................................28
9.8 Main values ...........................................................................28
9.9 History...................................................................................28
10 Commissioning ................................................................29
10.1 Controls and preliminary arrangements................................29
10.2 Pumps bleed........................................................................29
10.3 Control of the safety systems ...............................................29
10.4 Check of the pumps flow rate and setting of configuration
parameters ..................................................................................29
10.5 Start-up...............................................................................29
11 Production safety and malfunctions ...............................30
11.1 Inductive flow sensors .........................................................30
11.2 Empty reagents tanks ..........................................................30
11.3 Analogic input anomaly ........................................................30
11.4 Gas detector pre-alarm ........................................................30
11.5 Threshold exceeded ClO2gas detector..................................31
11.6 Pre-diluition flow lack ..........................................................31
12 Maintenance ....................................................................32
13 Disassembling .................................................................32
14 Warranty claim.................................................................33
15 Declaration of no objection..............................................34
16 EU Declaration of Conformity...........................................35
17 Index.................................................................................36

Notes for the Reader
4© Lutz-Jesco GmbH 2020
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Chlorine Dioxide System EASYZON Dd Operating Instructions
1 Notes for the Reader
This operating manual contains information and behaviour rules for the
safe and designated operation of the device.
Observe the following principles:
nRead the entire operating manual prior to starting-up the device.
nEnsure that everyone who works with or on the device has read the
operating manual and follows it.
nMaintain the operating manual throughout the service life of the de-
vice.
nPass the operating manual on to any subsequent owner of the device.
1.1 General non-discrimination
In this operating manual, only the male gender is used where grammar
allows gender allocation. The purpose of this is to make the text easy to
read. Men and women are always referred to equally. We would like to
ask female readers for understanding of this text simplification.
1.2 Explanation of the signal words
Different signal words in combination with warning signs are used in this
operating manual. Signal words illustrate the gravity of possible injuries if
the risk is ignored:
Signal word Meaning
DANGER Refers to imminent danger. Ignoring this sign may
lead to death or the most serious injuries.
WARNING
Refers to a potentially hazardous situation.
Failure to follow this instruction may lead to death
or severe injuries.
CAUTION
Refers to a potentially hazardous situation.
Failure to follow this instruction may lead to
minor injury or damage to property.
NOTE Refers to a danger which, if ignored, may lead to
risk to the machine and its function.
Tab. 1: Explanation of the signal words
1.3 Explanation of the warning signs
Warning signs represent the type and source of a danger:
Warning sign Type of danger
General danger
Danger from electrical voltage
Danger from poisonous substances
Danger from corrosive substances
Danger from potentially-explosive substances
Danger from oxidising substances
Danger of damage to machine or functional
influences
Tab. 2: Explanation of the warning signs
1.4 Identification of warnings
Warnings are intended to help you recognise risks and avoid negative
consequences.
This is how warnings are identified:
Warning sign SIGNAL WORD
Description of danger
Consequences if ignored.
ðThe arrow signals a safety precaution to be taken to eliminate the
danger.
1.5 Identification of action instructions
This is how pre-conditions for action are identified:
üPre-condition for action which must be met before taking action.
@A resource such as a tool or auxiliary materials required to perform
the operating instructions.
This is how instructions for action are identified:
èSeparate step with no follow-up action.
1. First step in a series of steps.
2. Second step in a series of steps.
4Result of the above action.
üAction completed, aim achieved.

Safety 5
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200922
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Chlorine Dioxide System EASYZON Dd Operating Instructions
2 Safety
2.1 General warnings
The following warnings are intended to help you to eliminate the dangers
that can arise while handling the system. Risk prevention measures al-
ways apply regardless of any specific action.
Safety instructions warning against risks arising from specific activities
or situations can be found in the respective sub-chapters.
DANGER
Mortal danger from electric shock!
Wrongly connected or located cables or damaged ones can injure you.
ðPerform the electrical installation in accordance with the appropri-
ate circuit diagram.
ðReplace damaged cables without delay.
ðDo not use extension cables.
ðDo not bury cables.
ðSecure cables to avoid being damaged by other equipment.
DANGER
Danger to life through explosions!
Chlorine dioxide gas (ClO2) is prone to explode if the concentration in the
gas phase becomes too high.
ðNever use chemicals with a higher concentration than prescribed.
ðNever heat the chlorine dioxide solution.
ðComply with the specifications in Chapter 5 „Technical data“ on
page 13.
DANGER
Danger to life from poisoning!
Mixing sodium chlorite and hydrochloric acid outside the reactor will
result in the development of chlorine dioxide gas. Chlorine dioxide is a
very toxic substance if inhaled and very irritant for the eyes,the respira-
tory organs and skin. Prevent the uncontrolled development and re-
lease of chlorine dioxide gas by complying with the following instruc-
tions.
ðAvoid contact between sodium chlorite and hydrochloric acid out-
side the reactor.
ðMark clearly all material-conducting components (e.g. collecting
pans, chemicals canisters, suction lines, hoses, pumps) with a col-
our. Renew the damaged markings regularly.
ðTake steps to prevent the mixing of hydrochloric acid and sodium
chlorite outside the scope of the controlled processes by separating
the chemicals strictly and never swapping suction lines/lances.
ðInstall a gas sensor or a gas warning device which deactivates the
system following the presence of chlorine dioxide in the room air.
ðInstall an emergency stop switch with which the system can be
deactivated from a safe distance. The emergency stop switch
should be located outside the room in which the chlorine dioxide
system is located. It should be easily recognisable.
ðAlways wear sufficient personal protective equipment when in the
area of the system.
ðComply with the safety instructions outlined in the safety data
sheets of the chemicals and meet the corresponding safety precau-
tions.
WARNING
Danger of fire!
Dried up sodium chlorite has an oxidising effect and can ignite flamma-
ble materials.
ðDo not allow sodium chlorite to dry on flammable materials.
ðUse suction lines with a foot valve to avoid leaks when changing the
container.
ðRemove any spilt chemicals with large amounts of water.
ðRinse out splashes of chemicals on articles of clothing with large
amounts of water immediately.

Safety
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Chlorine Dioxide System EASYZON Dd Operating Instructions
WARNING
Danger of injury when working on the components.
You may come into contact with dosing media when working on the
system components.
ðSecure the system to prevent it from being turned on accidentally.
ðUse sufficient personal protective equipment.
ðRinse the system before working on individual components so as to
remove dosing medium residue. Only use water.
ðRelease pressure in hydraulic parts.
ðNever look into open ends of plugged pipelines and valves.
WARNING
Caustic burns or other burns through dosing media!
The materials of the components and hydraulic parts of the system
must be suitable for the dosing medium that is used. Should this not be
the case, the dosing media may leak.
ðMake sure that the materials you are using are suitable for the dos-
ing medium.
ðMake sure that the lubricants, adhesives,sealants, etc.that you use
are suitable for the dosing medium.
CAUTION
Damage to health from by-product!
Chlorine dioxide solutions break down slowly and produce undesired
by-products.
ðChlorine dioxide must be manufactured on-site.
ðThe chlorine dioxide solution must be thinned to a concentration of
1-2g/l before storage.
ðToo old chlorine dioxide solutions are not suitable for the disinfec-
tion of drinking water.
CAUTION
Danger from hazardous materials!
Escaped dosing medium can result in health hazards and the chemical
attack of components.
ðDispose of dosing medium residue in the correct fashion.
ðClean the affected system parts thoroughly with large quantities of
water.
CAUTION
Increased risk of accidents due to insufficient qualifica-
tion of personnel!
Chlorine dioxide systems and their accessories must only be installed,
operated and maintained by personnel with sufficient qualifications.
Insufficient qualification will increase the risk of accidents.
ðEnsure that all action is taken only by personnel with sufficient and
corresponding qualifications. Comply with Chapter 2.5 „Personnel
qualification“ on page 7.
ðThose performing system settings require an exact understanding
of their effects on the production process and operating behaviour.
Settings may only be performed by qualified service personnel.
ðPrevent access to the system for unauthorised persons.
NOTE
Corrosion from hydrochloric acid steam
Hydrochloric acid steam has a corrosive impact and can damage to
insufficiently protected components and parts.
ðThe installation location of the system must have ventilation.
ðUnprotected metal components in the chlorine dioxide room should
be painted for their protection.
NOTE
Possible corrosion on the piping
The chlorine dioxide solution is acidic and alters the pH value of the
treated water.This can cause long-term damage to the piping.
ðNever alter the pH value by more than 0.5 pH.
ðWe recommend a total water hardness of at least 5° dH
orKs4.3=0.9 mmol/l
ðUse the piping made of durable material.
NOTE
Do not dispose of the device in the domestic waste!
Do not dispose of electric devices via the domestic waste.
ðThe device and its packaging must be disposed of in accordance
with locally-valid laws and regulations.
ðDispose of different materials separately and ensure that they are
recycled.

Safety 7
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200922
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Chlorine Dioxide System EASYZON Dd Operating Instructions
2.2 Hazards due to non-compliance with the safety
instructions
Failure to follow the safety instructions may endanger not only persons,
but also the environment and the device.
The specific consequences can be:
nFailure of major system functions,
nFailure of required maintenance and repair methods,
nDanger for individuals through dangerous dosing media,
nDanger to the environment caused by substances leaking from the
system.
2.3 Working in a safety-conscious manner
Besides the safety instructions specified in this operating manual, further
safety rules apply and must be followed:
nAccident prevention regulations
nSafety and operating provisions
nSafety provisions for handling dangerous substances (mostly the
safety data sheets to dosing media)
nEnvironmental protection provisions
nApplicable standards, specifications and legislation
i
The information from standards and technical regulations
contained in these operating instructions are to be understood
as supplementary information. In no way do they absolve the
reader of the obligation to obtain the relevant information
themselves. The manufacturer does not accept any responsi-
bility for the up-to-date nature of the recommendations and
instructions from standards and technical regulations pub-
lished in these operating instructions.
2.4 Personal protective equipment
Based on the degree of risk posed by the dosing medium and the type of
work you are carrying out, you must use corresponding protective equip-
ment. Read the Accident Prevention Regulations and the Safety Data
Sheets to the dosing media find out what protective equipment you need.
You will require the minimum of the following personal protective equip-
ment:
Personal protective equipment required
Gas mask with filter type "B"
Safety goggles with safety visor
Tab. 3: Personal protective equipment required
Personal protective equipment required
Taiwek overalls
Safety shoes
Anti-acid gloves
Tab. 3: Personal protective equipment required
Wear the following personal protective equipment when performing the
following tasks:
nCommissioning
nWorking on the dosing pump while running
nShut-down
nMaintenance work
nDisposal
2.5 Personnel qualification
Any personnel who work on the system must be in possession of the ap-
propriate special knowledge and skills.
Anybody who works on the system must meet the following conditions:
nAttendance at all the training courses offered by the owner
nPersonal suitability for the respective activity
nSufficient qualification for the respective activity
nTraining in handling of the system
nKnowledge of safety equipment and the way this equipment functions,
nKnowledge of this operating manual, particularly of safety instructions
and sections relevant for the activity
nKnowledge of fundamental regulations regarding health and safety
and accident prevention
All persons must generally have the following minimum qualification:
nTraining as specialists to carry out work on the device unsupervised,
nSufficient training that they can work on the device under the supervi-
sion and guidance of a trained specialist.
These operating instructions differentiate between these user groups:
2.5.1 Specialist staff
Thanks to their professional training, knowledge, experience and knowl-
edge of the relevant specifications, specialist staff are able to perform the
job allocated to them and recognise and/or eliminate any possible dan-
gers by themselves.

Safety
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Chlorine Dioxide System EASYZON Dd Operating Instructions
2.5.2 Trained electricians
Due to their professional training, knowledge and experience as well as
knowledge of specific standards and provisions, trained electricians are
able to do the electrical work assigned to them and to recognise and
avoid any potential dangers by themselves.
They are specially trained for their specific working environment and are
familiar with relevant standards and provisions.
They must comply with the legally binding regulations on accident pre-
vention.
2.5.3 Trained persons
Trained persons have received training from the operator about the tasks
they are to perform and about the dangers stemming from improper be-
haviour.
In the table below you can check what qualifications are the pre-condi-
tion for the respective tasks. Only people with appropriate qualifications
are allowed to perform these tasks!
Qualification Activities
Specialist staff nAssembly
nHydraulic installations
nMake settings on the software and sys-
tem components
nCommissioning
nControl
nMaintenance
nRepairs
nTaking out of operation
nStorage
nDisposal
nFault rectification
Trained electricians nElectrical installation
nRectifying electrical faults
Trained persons nControl
Tab. 4: Personnel qualification

Intended use 9
© Lutz-Jesco GmbH 2020
Subject to technical changes.
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Chlorine Dioxide System EASYZON Dd Operating Instructions
3 Intended use
3.1 Notes on product warranty
Any non-designated use of the product can compromise its function or
intended protection. This leads to invalidation of any warranty claims!
Please note that liability is on the side of the user in the following cases:
nThe system is operated in a manner which is not consistent with these
operating instructions, particularly safety instructions, handling in-
structions and the section "Intended Use".
nIf people operate the product who are not adequately qualified to carry
out their respective activities.
nNo original spare parts or accessories of Lutz-Jesco are used.
nUnauthorised alterations are made to the system.
nThe user uses different dosing media than those indicated in the or-
der.
nThe user does not use dosing media under the conditions agreed with
the manufacturer such as modified concentration, density, tempera-
ture, contamination, etc.
nMaintenance and inspection intervals are not adhered to as required
or not adhered to at all.
nThe system is commissioned before it has been completely and prop-
erly installed.
nSafety equipment has been bridged, removed or made inoperative in
any other way.
3.2 Intended purpose
The chlorine dioxide system is intended for the following purpose: Pro-
duction of a chlorine dioxide solution (ClO2) from sodium chlorite (NaClO2),
hydrochloric acid (HCl).
3.3 Principles
nThe system may only use 7 % sodium chlorite (NaClO2) in accordance
with EN 938.
nThe system may only use 9 % hydrochloric acid (HCI) in accordance
with EN 939.
nComply with the information regarding the operating and environmen-
tal conditions (see section "Technical Data" on page 15).
nThe manufacturer's/chemical supplier's EEC safety data sheets for
the chemicals included in the scope of delivery of the system are to be
complied with and must be held accessible to every user of the sys-
tem.

Product description
10 © Lutz-Jesco GmbH 2020
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Chlorine Dioxide System EASYZON Dd Operating Instructions
4 Product description
4.1 Scope of delivery
The chlorine dioxide system unit is fitted with the following components
and provides the following characteristics:
nPlastic base plate for wall mounting
nDiaphragm dosing pumps with calibration cylinder fitted on the wall-
plate; back-pressure valves fitted
nDosing of dilution water with ball valve via the float element flow me-
ter.
nPVDF reactor with PVDF non-return valves
nSafety cabinet with ventilation and activated carbon for the reactor
nIntuitively operable control with LCD display: display of all operatings-
tates.
nSuction lines for commercially-available canisters as well as float-
switches for chemical containers
nControl cabinet key and operating manuals
All optional accessories are specified separately.
Check the scope of delivery for completeness against the delivery note
carefully before beginning with the installation and check that the com-
ponents have not suffered any damage during transport. Notify the sup-
plier or transport company of any damage suffered during transport.
i
The system can contain water residue from tests on the test
stand.
4.2 Chlorine dioxide (ClO2) in water treatment
Chlorine dioxide is a potent, fast-acting oxidizing and disinfectant agent,
with the following properties:
nA good effect against bacteria, viruses, spores and algae
nFull disinfecting power across a broad pH range (5 – 11)
nA higher disinfecting power than chlorine
nThe odour and taste threshold of ClO2is higher than chlorine
nIts use does not produce any trihalomethanes (THM) or chloramines
nClO2has a better repository effect than chlorine
4.2.1 The applications of chlorine dioxide
nProcess water treatment
nRaw water treatment
nLegionella prevention
nEmergency chlorinating systems
nWater works
nBreweries
nBeverage manufacturer
nTreating food
nControlling bio films as on e.g. cooling water systems
4.2.2 The preparation of chlorine dioxide
EASYZON produces chlorine dioxide via the acid-chlorite method using
diluted chemicals. Both chemicals are mixed with water in a reactor and
react to produce chlorine dioxide.
4 HCl + 5 NaClO2→4 ClO2+ 5 NaCl + 2 H2O

Product description 11
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200922
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Chlorine Dioxide System EASYZON Dd Operating Instructions
4.2.3 Description of the unit
62003014_3
Frontansicht EASYZON Dd-D
Chlordioxid-Bereitungsanlage
6
5
4
1
2
3
Fig. 1: Components of EASYZON Dd
No. Description
1Control system
2Power supply
3Calibration column
4Extraction pumps
5Dilution control
6Reactor housing
Tab. 5: Description of the components
62003001_2
Frontansicht EASYZON Dd-D Compact
Chlordioxid-Bereitungsanlage
4
3
1
2
Fig. 2: Components of EASYZON Dd Compact
No. Description
1Control system
2Power supply
3Extraction pumps
4Reactor housing
Tab. 6: Description of the components
In the EASYZON plants, chlorine dioxide is wet-produced making 9 % hy-
drochloric acid and 7.5 % sodium chlorite react in a 1 : 1 ratio so to achie-
ve a 2 % ClO2solution (20 g/l in the reactor).
Both reagents are dosed into a reactor by means of two electromagnetic
high-precision dosing pumps, whose actual dosing is checked by means
of flow sensors.
At the outlet of the reactor, chlorine dioxide is injected into a static mixer
where a well-defined quantity of pre-mixing water shall flow in order to
dilute the concentrated solution coming out of the generator and convey
it safely up to the point of dosage. If the pre-dilution and conveying flow
stops, production will stop.

Product description
12 © Lutz-Jesco GmbH 2020
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Chlorine Dioxide System EASYZON Dd Operating Instructions
4.3 Rating plate
The rating plate contains information on the safety and functional method
of the product. The rating plate must be kept legible for the duration of the
service life of the product.
Material:
Chlorine Dioxide System
5 g/h
230 V, 50 Hz, 100 W, IP65
Lutz-Jesco GmbH 30900 Wedemark
Am Bostelberge 19 Germany
XX/XXXX
S/N: XXXXXXXXXX
P/N:
Made in
Germany
*102A12345678*
*12345678012345*
EASYZON D
Fig. 3: Typenschild EASYZON Dd
No. Description
1Product name
2Production capacity ClO2/h
3Voltage supply, frequency, power consumption
4Label showing conformity with applicable European directives
5WEEE label
6Protection classification
7Serial number
8Part number
9Month/year of manufacture
Tab. 7: Description of the components
1
2
3
4 5 6
9
8
7

Technical data 13
© Lutz-Jesco GmbH 2020
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Chlorine Dioxide System EASYZON Dd Operating Instructions
5 Technical data
Description 15 Dd
Compact
30 Dd
Compact 60 Dd 100 Dd 200 Dd 600 Dd 800 Dd 1400 Dd
Power supply 210 – 230 V AC, 50/60 Hz; 1-ph
Working temperature range °C + 5 to + 40°C
Place of installation Ventilated room
Max. production at 4 bar g/h ClO218 32 72 115 247 613 844 1478
Max. pressure bar 10 8 6 8 5
Max. consumption pr reagent l/h 0.45 0.8 1.8 2.9 6.2 15.4 21.1 37
Average absorbed power W 19 25 50 120
Tab. 8: Technical data
i
The max. production and max. consumption per reagent data
are related to the max. working pressure specified in the table,
that shall NEVER be exceeded.
EASYZON is a system for the "in situ" production of the biocidal active
agent "chlorine dioxide": In accordance with the biocide ordinance, as of
01/09/2015, the member states of the European Union may only use pre-
cursors for biocidal active agents produced "in situ" and which are used
as dis-infectants. These precursors must satisfy the quality requirements
made of these substances by DIN EN and be sourced from a manufacturer
or suppli-er listed in accordance with article 95 of the biocide ordinance.
Please ask your supplier to confirm conformity with the biocide ordinance
(certificate).
Biocidal active agent:
Chlorine dioxide: EC-Nr. 233-162-8; CAS-Nr. 10049-04-4;
DIN EN 12671
Precursors:
Hydrochloric acid (9.0 %): EC-Nr. 231-595-7; CAS-Nr. 7647-01-0;
DIN EN 939
Sodium chlorite (7.5 %): EC-Nr. 231-836-6; CAS-Nr. 7758-19-2;
DIN EN 938
5.1 Information notes for safety
Substance Chlorine Dioxide Aqueous Solution
Identification
Chemical name Chlorine Dioxide
Molecular formula ClO2
Molecular weight 67.47
The EASYZON units produce a 2 % (20 g/l) chlorine dioxide aqueous so-
lution that is perfectly stable and is not harmful.
However, a leak of the solution in the environment releases a low quan-
tity of gaseous ClO2. We list herebelow the main characteristics of the
active principle.
ClO2physical and chemical properties
Physical state Gas
Colour Yellow
Odour Typical/suffocating
Vapour pressure 140 kPa at 20 °C
Specific weight of
vapours rel. to air
2.3
Dangerous reac-
tions
Gaseous chlorine dioxide can explode at concen-
trations higher than 10% only.
Gaseous chlorine dioxide emitted after a dispersion of aqueous solution
is toxic if inhaled and can cause bronchitis and inflammation of the mu-
cous membranes. It also causes irritation to eyes and skin.
Exposure limits
TLV 0.1 ppm (0.3 mg/m3)
STEL 0.3 ppm (0.9 mg/m³)
First-aid measures
Eye contact Rinse with copious amounts of water
Skin contact Rinse with water
Inhalation Take the injured party away from the area. If re-
quired, provide the injured party with oxygen.
Accidental release measures
Aspirate the gas if possible, and wash with copious amounts of water.
Reduce with reducing solutions (for ex. sodium bisulphite up to an alka-
line pH).

Technical data
14 © Lutz-Jesco GmbH 2020
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Chlorine Dioxide System EASYZON Dd Operating Instructions
5.2 Dioxide production room and production reagents
storage room
CAUTION
Increased risk of accidents due to insufficient qualifica-
tion of personnel!
Chlorine dioxide systems and their accessories must only be installed,
operated and maintained by personnel with sufficient qualifications.
Insufficient qualification will increase the risk of accidents.
ðEnsure that all action is taken only by personnel with sufficient and
corresponding qualifications. Comply with Chapter 2.5 „Personnel
qualification“ on page 7.
ðThose performing system settings require an exact understanding
of their effects on the production process and operating behaviour.
Settings may only be performed by qualified service personnel.
ðPrevent access to the system for unauthorised persons.
IT IS FORBIDDEN TO SMOKE AND USE OPEN FLAMES in the chlorine dioxi-
de production room and in the chemical reagents storage room/s.
The room where to install the chlorine dioxide producer shall be properly
sized so to ensure that people in charge of its operation and maintenance
may move easily. It shall be ventilated either naturally or forcedly by me-
ans of an air extractor. The room shall not be made accessible to unau-
thorized people; the generator shall be protected against accidental im-
pacts and/or suspended loads. Production reagents may be normally
stored in containers made of plastics such as polyethylene (PE), polypro-
pylene (PP), PVC or plastic reinforced by fiber glass (PRFV). No ferrous
material shall be used due to the corrosive properties of the chemicals.
Level switches (supplied as a standard) shall always be put into the con-
tainers to automatically stop production if the containers are empty.
If possible, place the containers next to the dioxide production plant so to
avoid long suction pipes on the pumps.
Moreover, the containers shall be physically separated from each other
and arranged into special safety tubs to avoid any mixing and to prevent
reagents from leaking into the soil in case of rupture. At their concentra-
tions of use (acid 9 % - chlorite 7.5 %), the reagents do not produce fu-
mes or only produce a very low quantity that is not dangerous. However,
we recommend you if possible to convey the vents of the tanks outside
the storage room.
Clearly readable warning signs shall be placed to identify the chemical
reagent inside the storage tank.
The supplier of the chemical reagents shall provide the relevant safety
data sheet and all the indications foreseen by the norms in force, a copy
of which shall be kept on the plant.

Dimensions 15
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200922
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Chlorine Dioxide System EASYZON Dd Operating Instructions
6 Dimensions
All dimensions in mm.
A
a
B
b
C
Fig. 4: Dimensions EASYZON Dd

Dimensions
16 © Lutz-Jesco GmbH 2020
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Chlorine Dioxide System EASYZON Dd Operating Instructions
A
a
B
bC
Fig. 5: Dimensions EASYZON Dd Compact
Description 15 Dd
Compact
30 Dd
Compact 60 Dd 100 Dd 200 Dd 600 Dd 800 Dd 1400 Dd
A/a 700/590 850/770 900/820 1000/920
B/b 1000/330 1090/1010 1350/1270 1700/1620
C* 370 420
Pre-dilution d.25 – DN20 d.32 – DN25
Pumps asp. 6 x 4 mm 8 x 6 mm
Tab. 9: Dimensions

Installation 17
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200922
BA-62010-01-V01
Chlorine Dioxide System EASYZON Dd Operating Instructions
7 Installation
7.1 General Notes
i
For installation, the local directions and regulations have to be
adhered to. This applies to the choice of suitable materials, the
handling of chemicals, the hydraulic and electrical installation.
The designer and operating company are responsible for ensuring that
the entire system, including the integrated equipment, are designed in
such a way that neither system equipment nor buildings are damaged in
the case of chemical leakage due to the failure of wearing parts (e.g.
pump hose) or burst hoses. The installation must be arranged in such a
way that even if the device breaks down no disproportionally high conse-
quential damages can arise. We therefore recommend installing leakage
monitors and collecting pans.
The functional security requires, depending on the application, the use of
suitable accessories, for example: injection nozzle and static mixer.
7.2 Installation location
The installation room of the production and dosing system must satisfy
the following requirements and specifications:
nThe room must be lockable and the chemicals must be stored in a
lockable room.
nPeople are not permitted to remain in the room. An exception is pro-
vided by the presence in the room of only those chemicals required for
the continuation of works.
nThe room must be secured against access by unauthorised persons.
nThe room air temperature must lie between 5 °C and 40 °C.
nIt must be possible to ventilate the room.
nIt must be possible to dispose of chemicals safely (recommendation:
water connection, sink, water hose, floor drain with odour trap).
nThe room is to be marked with warning signs (hazard warnings and
safety precautions).
nThe installation location must be separated from other spaces by fire-
proof equipment.
The following must also be observed:
nInstall the system in such a way that permits easy access from all
sides. A minimum of a half a metre clearance to other objects from all
sides must be maintained. If the chemical containers are placed in di-
rect proximity to the system, space requirements can increase ac-
cordingly.
nThe device is to be mounted vertically. The underside of the unit
should be approx. 1 m above the ground.
nThe system is not intended for outdoor use.
nFluid, dust and other foreign objects may not be permitted to Enter the
components.
nAvoid exposure to direct sunlight.
nRelative humidity may not be permitted to exceed 92 %.
nThe atmosphere may not be condensing or corrosive.
nAn escape route must be present.
nIt must be possible to mount a gas warning device.
nIt must be possible to mount an emergency-stop switch outside the
room in which the chlorine dioxide system is located.
7.3 Mechanical installation
The mechanical installation of the producer consists in positioning the
panel on the wall where the cabinet containing the reactor and the dosing
pumps are installed; for large plants, we suggest you to lay the panel on
the floor and arrange a supporting kerb at least 10 cm high, and to secu-
rely fasten it to the wall.
The bottom panel of the production plant shall be fastened by means of
the four/six holes (d. 10 mm) at the top and bottom of the structure itself.
For small plants the height from the floor may vary from 40 to 70 cm
compared to the base of the dosing pumps, for larger plants from 10 to
30 cm.
7.4 Pre-dilution circuit
CAUTION
Siphoning risk of the chemicals!
Siphoning risks occur when – while using the pre-dilution circuit - the
dosage is executed in an open system (e.g. a tub), in a point that is
lower than the base of the reagents storage tanks.
ðAlways foresee a hydraulic rupture of the siphon also when using
special anti-siphon valves.
Before being put into the water to be treated, chlorine dioxide shall be
dosed in a derived pre-dilution circuit, whose aim is to favour and accele-
rate its dilution as well as to avoid conveying the concentrated solution up
to the point of dosage.
The pre-dilution water (ca. 500 – 1000 l/h) can be drawn from a piping, a
tub or a pressurized network by means of a recirculation pump. The flow
of pre-dilution water shall then be conveyed as far as the producer and
from there to the point of dosage.
The pipings used for the circuit above may be made of rigid PV-U, PVC-C
or PVDF, or black polyethylene with PVDF inside covering. The piping dia-
meter shall be the same of the connections placed on the machine.
7.5 Additional connections
nFoot valves are placed into the storage tanks and are connected to the
suction of the dosing pumps by means of a soft PVC pipe (see tTab. 9
„Dimensions“ on page 16 for its diameter).
nMinimum level switches are placed into the storage tanks and are
connected to the electronic control unit.

Installation
18 © Lutz-Jesco GmbH 2020
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Chlorine Dioxide System EASYZON Dd Operating Instructions
7.6 Hydraulic installation
Fig. 6: Hydraulic diagram

Installation 19
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200922
BA-62010-01-V01
Chlorine Dioxide System EASYZON Dd Operating Instructions
7.7 Electrical installation
7.7.1 Description of the electrical connections
Input/Output Terminals Description of the connection Terminals already
connected (x)
PWR +
-Power supply 12 V DC and 24 V DC/V AC 50/60 Hz x
24 V DC 1 +
2 -
Auxiliary power supply 24 V DC – MAX 500 mA
Power supply test flow sensor
DO 1 45
46 Pump Control – Acid x
DO 2 3
4Pump Control – Chlorite x
DO 3 47
48 Reserve
DO 4 5
6Signal Relay Production ON
DO 5 49
50 Control Relay Pre-dilution Pump
DO 6 7
8Control Relay Air Extractor Reactor Room(for Compact models not applicable) x
DO 7 51
52 Signal Relay Production Stop
DO 8 9
10 Signal Relay Pre-dilution Failure
DO 9 53
54 Reserve 24 V DC Output – MAX 500 mA (for Compact models not applicable)
DO 10 11
12 Signal Relay Reagents Level Pre-alarm
DO 11 55
56
To be configured
Default: Relay Alarm Gaseous Dioxide in the Air (for Compact models not applicable)
DO 12 13
14
To be configured
Default:Alarm ClO2Test Value Thresholds Exceeded (for Compact models not applicable)
DI 1 57
58 Remote OFF/Remote Reset
DI 2 15
16 Empty Level Switch – Acid
DI 3 59
60 Empty Level Switch – Chlorite
DI 4 17
18 free
DI 5 61
62 free
DI 6 19
20 free
DI 7 63
64 free
DI 8 21
22 Minimum Level Switch – Acid (for Compact models not applicable)
DI 9 65
66 Minimum Level Switch – Chlorite (for Compact models not applicable)
10 23
24
To be configured
Reserve
11 67
68
To be configured
Reserve
Tab. 10: Description of the electrical connections

Installation
20 © Lutz-Jesco GmbH 2020
BA-62010-01-V01
Chlorine Dioxide System EASYZON Dd Operating Instructions
Input/Output Terminals Description of the connection Terminals already
connected (x)
12 25
26
To be configured
Default: Flow sensor test sample: Black wire on M25; M26 free (for Compact models not applicable)
DI 13(1) 69+
70- Flow Sensor – Acid x
DI 14(1) 27+
28- Flow Sensor – Chlorite x
DI 15(1) 71+
72- Reserve
DI 16(1) 29+
30- Pre-Dilution Flow Sensor x
AO 1 73 +
74 - 4 – 20 mA Analog Output – Production %
AO 2 31 +
32 -
4 – 20 mA Analog Output – Chlorine Dioxide Residual Value (only with sensor connected) (for
Compact models not applicable)
AO 3 75 +
76 -
4 – 20 mA Analog Output – Chlorite Value (only with sensor connected) (for Compact models not
applicable)
AI 1(2) 33 +
34 -
Green-brown: 0 – 2 V Analog Input Temperature Value
white-yellow: (for Compact models not applicable)
AI 2(3) 77 +
78 - 4 – 20 mA Analog Input Chlorine Dioxide Measurement Sensor (for Compact models not applicable)
AI 3(3) 35 +
36 -
4 – 20 mA Analog Input
Measurement Sensor Gaseous Chlorine Dioxide in the Air
AI 4(3) 79 +
80 -
4 – 20 mA Analog Input
Chlorite Measurement Sensor/Acid Tank Lev. Sensor (for Compact models not applicable)
AI 5(3) 37 +
38 -
4 – 20 mA Analog Input Free/Chlorite Tank Lev. Sensor (for Compact models not applicable)
AI 6(4) 81 +
82 -
4 – 20 mA/Pulse Analog Input
Flow Rate Value
AI 7(4) 39 +
40 -
4 – 20 mA/Pulse Analog Input
Proportional to external signal
RS232 83 RX
84 TX
85 GND
RS232 Serial (for Compact models not applicable)
41 H
42 L
43 GND
Free
RS485 86 A
87 B
88 GND
RS485 Serial
OPT 44 Power Supply 5 V DC
Tab. 10: Description of the electrical connections
(1) Active or passive 4 – 20 mA inputs
(2) Inputs that can be switched from mA to pulse by software
7.8 Power cables
The power cables used to connect the producer shall be of a non-flame propagating type (IEC 20-22 and version 1).
We recommend the following cross sections:
n1 mm² to connect signals and controls.
n1.5 mm² to connect the power supply of the producer and of the dosing pumps.