Grunbeck violiQ:UV20 User manual

We understand water.
UV disinfection system | violiQ:UV20/66/85
Operation manual

General Contact
Germany
International Sales
Phone [phone]
Service
Phone [phone]
[email protected]
Availability
Monday to Thursday
7:00 am - 6:00 pm
Friday
7:00 am - 4:00 pm
We reserve the right to technical modifications.
© by Grünbeck Wasseraufbereitung GmbH
Original operation manual
Edition: March 2022
Order no.: 100155850000_en_014

Table of contents
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Table of contents
1Introduction ............................................................... 4
1.1 Validity of the manual ................................................ 4
1.2 Other applicable documents ...................................... 4
1.3 Product identification ................................................. 5
1.4 Symbols used ............................................................ 6
1.5 Depiction of warnings ................................................ 6
1.6 Demands on personnel.............................................. 7
2Safety ......................................................................... 9
2.1 Safety measures........................................................ 9
2.2 Product-specific safety instructions ......................... 12
2.3 Conduct in emergencies .......................................... 13
3Product description ................................................ 14
3.1 Intended use ............................................................ 14
3.2 Application limits ...................................................... 15
3.3 Product components................................................ 17
3.4 Functional description.............................................. 18
3.5 Accessories/optional equipment .............................. 19
4Transport, set-up and storage ............................... 20
4.1 Shipping/Delivery/Packaging ................................... 20
4.2 Transport/Set-up...................................................... 20
4.3 Storage .................................................................... 20
5Installation ............................................................... 21
5.2 Requirements for the installation site....................... 23
5.3 Checking the scope of supply.................................. 24
5.4 Water installation ..................................................... 24
5.5 Electrical installation ................................................ 27
6Start-up/commissioning......................................... 31
6.1 Installing the protective quartz pipe ......................... 31
6.2 Installing the UV lamp.............................................. 32
6.3 Setting the control unit ............................................. 34
6.4 Venting, checking and putting the system into
operation.................................................................. 34
6.5 Handing over the product to the owner/operating
company ...................................................................36
7Operation..................................................................37
7.1 Operating concept ....................................................37
7.2 Operating elements and display ...............................38
8Maintenance and repair...........................................42
8.1 Cleaning ...................................................................42
8.2 Intervals ....................................................................44
8.3 Inspection .................................................................44
8.4 Maintenance .............................................................45
8.5 Consumables............................................................46
8.6 Spare parts ...............................................................46
8.7 Wearing parts ...........................................................47
9Troubleshooting.......................................................48
9.1 Messages .................................................................48
9.2 Checking the UV lamp..............................................49
10 Decommissioning....................................................52
10.1 Temporary shutdown................................................52
10.2 Decommissioning the system ...................................52
10.3 Restart/recommissioning ..........................................52
11 Dismantling and disposal .......................................53
11.1 Dismantling...............................................................53
11.2 Disposal....................................................................53
12 Technical specifications .........................................55
13 Operation log............................................................58
13.1 Start-up/commissioning log ......................................58

Introduction
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1 Introduction
This manual is intended for owners/operating companies, operators/users as well as
qualified specialists and ensures the safe and efficient handling of the product. The manual
is an integral part of the product.
●Carefully read this manual and the included manuals on the components before
you operate your product.
●Obey all safety and handling instructions.
●Keep this manual and all other applicable documents, so that they are available
when needed.
Illustrations in this manual are for basic understanding and can differ from the actual design.
According to the list as per § 11 of the German Drinking Water Ordinance, UV disinfection
systems to be used for drinking water must be tested in accordance with DIN 19294-1.
Grünbeck’s UV-disinfection systems violiQ:UV20/66/85 meet this requirement. For proper
operation, the UV disinfection systems violiQ:UV20/66/85 must be installed and operated
in accordance with the stipulations of DVGW worksheet W 294-1.
The UV disinfection systems type violiQ:UV20/66/85 included in this operation manual
meet this requirement.
1.1 Validity of the manual
This manual applies to the products below:
●Disinfection system violiQ:UV20
●Disinfection system violiQ:UV66
●Disinfection system violiQ:UV85
●Special designs that essentially correspond to the standard products given above.
For information on changes, please refer to the respective information sheet that is
enclosed, if applicable.
1.2 Other applicable documents
●Manuals for components from other manufacturers
●Safety data sheets for chemicals

Introduction
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1.3 Product identification
You can identify your product based on the product designation and the order no. indicated
on the type plate.
►Check whether the products indicated in chapter 1.1 correspond to your product.
The type plates are located on the control unit and the irradiation chamber.
Designation
1
Obey the operation manual
2
Disposal information
3
DVGW test mark
4
CE mark
5
Power supply
6
Power input
7
Ambient temperature
8
Protection/protection class
9
Date of manufacture
10
DVGW registration number
11
Product designation
12
Information on UV lamp
13
Information on protective pipe
14
Information on UV sensor
Designation
15
Standard for type approval test
16
Installation position of irradiation chamber
17
Water temperature
18
Minimum irradiance
19
Spectral attenuation coefficient SSK254
20
Nominal flow
21
Operating pressure
22
Nominal pressure
23
Nominal connection diameter
24
Data matrix code
25
Serial no.
26
Order no.
27
QR code

Introduction
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1.4 Symbols used
Symbol
Meaning
Danger and risk
Important information or requirement
Useful information or tip
Written documentation required
Reference to further documents
Work that must be carried out by qualified specialists only
Work that must be carried out by qualified electricians only
Work that must be carried out by technical service personnel only
1.5 Depiction of warnings
This manual contains information and instructions that you must obey for your personal
safety. The information and instructions are highlighted by a warning symbol and are
structured as shown below:
1.5.1.1
1.5.1.2 SIGNAL WORD
1.5.1.3 Type and source of hazard
1.5.1.4
●Possible consequences
►Preventive measures
The signal words below are defined subject to the degree of danger and might be used in the
present document:
Warning symbol and
signal word
Consequences if the information/instructions are ignored
DANGER
Personal injury
Death or serious injuries
WARNING
Possible death or serious injuries
CAUTION
Possible moderate or minor injuries
NOTE
Damage to
property
Possible damage to components, the product and/or its
functions, or an object in its vicinity

Introduction
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1.6 Demands on personnel
During the individual phases in the service life of the system, different persons carry out work
on the system. This work requires different qualifications.
1.6.1 Qualification of personnel
Personnel
Requirements
Operator/user
•No special expertise required
•Knowledge of the tasks assigned
•Knowledge of possible dangers in case of incorrect behaviour
•Knowledge of the required protective equipment and protective measures
•Knowledge of residual risks
Owner/operating company
•Product-specific expertise
•Knowledge of statutory regulations on work safety and accident prevention
Qualified specialist
•Electrical engineering
•Sanitary engineering
(HVAC and plumbing)
•Transport
•Professional training
•Knowledge of relevant standards and regulations
•Knowledge of detection and prevention of potential hazards
•Knowledge of statutory regulations on accident prevention
Technical service
(Grünbeck's technical service/
authorised service company)
•Extended product-specific expertise
•Trained by Grünbeck
1.6.2 Authorisations of personnel
The table below describes which tasks may be carried out by whom.
Operator/
user
Owner/
operating
company
Qualified
specialist
Technical
service
Transport and storage
X
X
X
Installation and mounting
X
X
Start-up/commissioning
X
X
Operation and handling
X
X
X
X
Cleaning
X
X
X
Inspection
X
X
X
Maintenance
semi-annually
X
X
annually
X
X
Troubleshooting
X
X
X
X
Repair
X
X
Decommissioning and
restart/recommissioning
X
X
Dismantling and disposal
X
X

Introduction
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1.6.3 Personal protective equipment
►As an owner/operating company, make sure that the required personal protective
equipment is available.
The components below fall under the heading of personal protective equipment (PPE):
Protective gloves
Protective footwear
Protective overall
Safety goggles
UV safety goggles
Mask

Safety
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2 Safety
According to § 11 of the German Drinking Water Ordinance, UV disinfection systems must
only be used if tested according to DIN 19294-1. Grünbeck’s UV disinfection systems
violiQ:UV20/66/85 meet this requirement.
●In Germany, only DVGW-certified UV disinfection systems are approved for use in
the drinking water sector.
●For operation of the UV disinfection systems in compliance with the German
Drinking Water Ordinance (TrinkwV) in accordance with DVGW work sheet
W 294-1, it is necessary to interrupt the water flow in the event of a power failure.
●Without a safety device, the UV disinfection system cannot be operated according
to the German Drinking Water Ordinance. There is a risk that water which is not or
insufficiently disinfected might enter the installation downstream of the UV
disinfection system. This can result in a contamination of the pipes and
microbiological loading of the water making it unfit for human consumption.
2.1 Safety measures
●Only operate your product if all components are installed properly.
●Obey the local regulations on drinking water protection, accident prevention and
occupational safety.
●Do not make any changes, alterations, extensions or program changes on your
product.
●Only use genuine spare parts for maintenance or repair.
●Keep the premises locked against unauthorised access to protect imperilled or
untrained persons from residual risks.
●Comply with the maintenance intervals (refer to chapter 8.2). Failure to comply can
result in the microbiological contamination of your drinking water system.
●Be aware of a possible risk of slipping due to leaking water on the floor.
2.1.1 Mechanical hazards
●You must never remove, bridge, or otherwise tamper with safety equipment.
●For all work on the system that cannot be carried out from the ground, use stable,
safe and self-standing access aids (e.g. stepladders).
●Make sure that the system is set up in a way that it cannot tip over and that the
stability of the system is guaranteed at all times.

Safety
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2.1.2 Pressure-related hazards
●Components can be under pressure. There is a risk of injuries and damage to
property due to escaping water and unexpected movement of components. Check
the system’s pressure lines for leaks at regular intervals.
●Before starting repair and maintenance work, make sure that all affected
components are depressurised.
2.1.3 Electrical hazards
There is an immediate danger of fatal injury from electric shock when touching live parts.
Damage to the insulation or individual components can be life-threatening.
●Only have qualified electricians carry out electrical work on the system.
●In case of damage to live components, switch off the voltage supply immediately
and arrange for repair.
●Switch off the supply voltage before working on electrical system parts. Discharge
residual voltage.
●Never bridge electrical fuses. Do not disable fuses. Use the correct current ratings
when replacing fuses.
●Keep moisture away from live parts. Moisture can cause short-circuits.
2.1.4 Danger due to chemicals
●Chemicals can be hazardous to health and environment.
They can cause skin and eye burns as well as irritation of the respiratory tract or
allergic reactions.
●Avoid any skin/eye contact with chemicals.
●Use personal protective equipment.
●Read the safety data sheet before handling chemicals. Obey the instructions for
different activities/situations.
●Current safety data sheets for chemicals are available for download at
www.gruenbeck.de/en/info-centre/safety-data-sheets.
●Obey in-house instructions when handling chemicals. Make sure that protective
and emergency equipment such as emergency showers and eyewash are
available where required, and functional.

Safety
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Mixing and residual amounts of chemicals
●Do not mix different chemicals. Unforeseeable chemical reactions posing a lethal
danger can occur.
●Dispose of residual amounts of chemicals in accordance with local regulations
and/or in-house instructions.
●Residual amounts from used containers should not be transferred into containers
with fresh chemicals in order not to impair the effectiveness of the chemicals.
Labelling/Minimum shelf life/Storage of chemicals
●Check the labelling of the chemicals. Chemical labels must not be removed or
made illegible.
●Do not use any unknown chemicals.
●Comply with the use-by date (minimum shelf life) stated on the label.
●If stored incorrectly, chemicals could change their state of matter, crystallize,
outgas, or lose their effectiveness. Store and use the chemicals at the indicated
temperatures only.
Cleaning/Disposal
●Immediately absorb spilled chemicals with suitable binding agents.
●Collect and dispose of chemicals in such a way that they cannot pose any risks to
people, animals, or the environment.
2.1.5 Groups of persons requiring protection
●Children must not play with the product.
●This product must not be used by persons (including children) with reduced
capabilities, lack of experience or knowledge.
●Children should be supervised to make sure that they do not play with the product.

Safety
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2.2 Product-specific safety instructions
2.2.1 Safety devices
CAUTION
Operation without safety device
●Without a safety device, the UV disinfection system cannot be operated
according to the German Drinking Water Ordinance.
●There is a risk that water which is not or insufficiently disinfected might enter the
installation downstream of the UV disinfection system.
●This can result in a contamination of the pipes and microbiological loading of the
water making it unfit for human consumption.
►Always install a safety device (refer to chapter 8.6.1)
With increasing idle times without water withdrawal, the UV system heats up.
CAUTION
Temperature increase in the UV system
●Water temperatures of up to 60 °C can occur in the UV system.
●The increase in temperature has an impact on the UV lamp.
With the increasing temperature (starting with a water temperature of approx.
25 °C), the irradiance decreases and in case of high temperatures can even fall
below the alarm limit value.
►Use temperature-controlled flushing to flush the UV system subject to the
temperature (refer to chapter 3.5).
2.2.2 Signals and warning signs
Labels on the product
Risk of electric shock
Risk due to optical radiation
Risk of explosion
UV irradiation
Risk due to mercury
The affixed information and pictograms must be clearly legible.
They must not be removed, soiled or painted over.
►Obey all warnings and safety instructions.
►Immediately replace illegible or damaged symbols and pictograms.

Safety
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2.3 Conduct in emergencies
2.3.1 In case of water leaks
1. De-energise the system –pull the mains plug.
2. Locate the leak.
3. Eliminate the cause of the water leak.

Product description
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3 Product description
3.1 Intended use
●The UV disinfection systems violiQ:UV are designed for the disinfection of cold
drinking water.
●The UV disinfection systems violiQ:UV are to be installed downstream of the water
treatment systems.
●The room irradiation required to kill bacteria and viruses is at least 400 J/m². At this
room irradiation, a reduction rate of 99.99 % is achieved.
●The UV disinfection systems violiQ:UV are adapted to the water demand and the
water quality to be expected during installation and are suitable up to a spectral
attenuation coefficient SSK254 of 3.2 m-1. The maximum flow must not be
exceeded under any circumstances. At an attenuation coefficient SSK254 of
3.2 m-1, the flow/irradiance indicated in the technical specifications guarantee a
disinfection effectiveness of at least 400 J/m².
●A reliable disinfection of the water can only be achieved if the water is mostly free
of turbidities and only slightly loaded with regard to microbiological growth. Water
containing turbidities or a permanently low or short-time peak load of germs
indicating faeces requires a treatment to separate particles.
●For operation of the UV disinfection systems in compliance with the German
Drinking Water Ordinance (TrinkwV) in accordance with DVGW work sheet
W 294-1, it is necessary to interrupt the water flow in the event of a power failure –
especially if the irradiance is insufficient or there is a lamp failure.
The systems must only be operated if all components are installed properly.
Safety equipment must never be removed, bridged or otherwise tampered with or disabled.
•This applies in particular to the flow stabilisers supplied with the system which are
designed to limit the flow. If these are not used or if their function is otherwise
manipulated, there is a risk that the UV disinfection systems are operated with a flow that
is too high. As a result, the UV disinfection systems lose their approval for use in drinking
water.
3.1.1 Foreseeable misuse
●Without a safety device, the UV disinfection system violiQ:UV cannot be operated
according to the German Drinking Water Ordinance.
» There is a risk that water which is not or insufficiently disinfected might enter the
installation downstream of the system. This can result in a contamination of the
pipes and microbiological loading of the water making it unfit for human
consumption.

Product description
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3.2 Application limits
The SKK254 (spectral attenuation coefficient at a wavelength of light of 254 nm) indicates
how much light is lost in the water.
The table below also indicates the water transmission. The transmission data refers to the
size of the cuvette used for measuring. For better comparability of different water analyses,
the transmissions are given for cuvette thicknesses of 10 mm, 50 mm and 100 mm.
The transmission or the spectral attenuation coefficient SKK254 can only be determined by
a water analysis in the laboratory.
The temperature of the water also has an influence on the performance of the UV
disinfection systems, as the water temperature affects the operating temperature of the
lamps. Therefore, the UV systems must only be operated within the specified temperature
range (5 –70 °C).
3.2.1 Use in drinking water
The characteristic pair of flow rate and irradiance must be in the grey area of the operating
diagram, i.e. the irradiance must always be above, and the flow rate must always be below
the value indicated for the respective UV system in the table. The UV systems are suitable
for water with a spectral attenuation coefficient SSK254 of up to 3.2 m-1.
The relevant data is shown on the type plate. For monitoring purposes, a UV sensor with a
160° logo is to be used.
The indicated flows are limited by using flow stabilisers in order to prevent incorrect
operation of the UV systems.
●The service life of the flow stabilisers is 12 months. The flow stabilisers must be
replaced during the annual major maintenance (refer to chapter 8.4.2).
Application limits
violiQ:UV20
violiQ:UV66
violiQ:UV85
Water temperature
°C
5 –70
Spectral attenuation coefficient
SSK254
m-1
≤ 3.2
τ1 cm
%
93.0
τ5 cm
%
69.6
τ10 cm
%
48.4
Nominal flow
m³/h
≤ 2.0
≤ 6.6
≤ 8.5
Irradiance*
W/m²
≥ 34.4
≥ 39.9
≥ 31.6
Flow stabiliser
Colour
1x red
2x black
1x red
2x blue
1x red
* At a measuring field angle of 160°

Product description
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3.2.1.2 Operating and suitability characteristic
violiQ:UV20
violiQ:UV66
violiQ:UV85
Designation
Flow in m³/h
Spectral attenuation coefficient SSK254
in m-1
Designation
Irradiance in W/m²

Product description
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3.3 Product components
Designation
Function
1
Control unit violiQ:UV
To control, monitor and forward signals
2
Ball valve
Outlet for flushing the irradiation chamber and for venting
3
Water meter
screw connection
Standard, for water inlet
4
Irradiation chamber
Pressure pipe made of stainless steel as reactor housing
5
Protective quartz pipe
To house the UV lamp
6
Sensor shell
To house the UV sensor
7
UV system sensor
To measure the irradiance
8
Ball valve
Inlet for flushing the irradiation chamber
9
UV lamp
For room irradiation with UV light
10
Brass screw connection
For protective pipe with UV lamp
11
Water meter
screw connection
Long, for water outlet with flow stabiliser
12
Mains plug
For Schuko socket
13
Safety device
To shut off the water pipe in case of insufficient water quality

Product description
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3.4 Functional description
The UV disinfection systems violiQ:UV20/66/85 are designed and certified according to
DIN 19294-1. They feature a UV sensor according to DIN 19294-3 and operate with a room
irradiation of at least 400 J/m².
3.4.1 Disinfecting effect of UV light
UV light (ultraviolet light) is light with a wavelength between 100 and 380 nm. These
wavelengths are below the sensitivity limit of the human eye and therefore invisible. For UV
disinfection, the wavelength at 254 nm is of particular importance. This wavelength is emitted
by mercury-arc lamps.
The disinfecting effect of UV light is due to the fact that light with a wavelength of 254 nm is
absorbed by the nucleic acids in the genetic material of micro-organisms The absorption of
the high-energy radiation alters the genetic material (DNA resp. RNA) and leads to an
incapability to reproduce.
The intensity of the room irradiation (light dose) required to inactivate micro-organisms
depends on the respective species and population of the micro-organisms. Fungi, spores
and algae require a much higher room irradiation than bacteria and viruses.
●According to DIN 19294-1, a minimum room irradiation of 400 J/m² achieves a
reduction rate of 99.99 % for viruses and bacteria.
For further and more detailed information, please refer to DVGW worksheet
W 294-1.
3.4.2 Room irradiation
The intensity of the room irradiation depends on the irradiance and the irradiation time. The
irradiance on the other hand depends on the specific attenuation coefficient of the water at
254 nm (SSK254). With regard to UV disinfection, the organic substances (e.g. humic acid)
and inorganic salts (e.g. iron or manganese ions) contained in the water are of major
importance as these absorb the UV light at 254 nm and thus reduce the transmission. As the
wavelength of 254 nm is in a range invisible to the eye, the SSK254 can only be determined
by a UV-VIS spectrometer and not with the naked eye.
In order to maintain the irradiation time, the flow rate of the UV systems is limited to ensure
the residence time required for disinfection in the irradiation chamber. Furthermore, the
irradiance is subject to the age of the UV lamps. The performance of the UV lamps
decreases with their increasing operating time. In order to continue to guarantee the required
room irradiation, the UV lamp must be replaced at the end of its service life.
Subject to being operated properly, all UV disinfection systems violiQ:UV20/66/85 meet the
effective minimum room irradiation of 400 J/m² required by the standards.

Product description
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3.5 Accessories/optional equipment
You can retrofit your product with accessories. Please contact your local Grünbeck
representative or Grünbeck’s headquarters in Hoechstaedt/Germany for details.
Illustration
Product
Order no.
Temperature-controlled flushing for violiQ:UV (DVGW)
With solenoid valve ½" and contact temperature sensor
(not for hot water UV)
523 825
Flushing kit for cleaning UV systems with GENO-clean CP
520 020
For the removal of deposits on the protective quartz pipe and on the
interior of the pressure pipe
UV safety goggles
522 810
Wall bracket for UV systems
523 800
To mount the UV system on the wall
Floor rack
To place the UV system on the floor
violiQ:UV20
523 815
violiQ:UV66
523 805
violiQ:UV85
523 810
USB data logger for violiQ:UV
To record the irradiance
523830010000

Transport, set-up and storage
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4 Transport, set-up and storage
4.1 Shipping/Delivery/Packaging
The system is fixed on a pallet at the factory and secured against tipping.
►Upon receipt, immediately check for completeness and transport damage.
4.2 Transport/Set-up
►Transport the product in its original packaging only.
►When transporting the product on site and setting it up, make sure to always place
it the right way round, if so indicated on the packaging.
►Place the system parts/packages on a level and stable surface. Take the weight
of the system parts/packages into account.
4.3 Storage
►Protect the product from the impacts below when storing it:
•Dampness, moisture
•Environmental impacts such as wind, rain, snow, etc.
•Frost, direct sunlight, severe heat exposure
•Chemicals, dyes, solvents and their vapours