Krantz VIRUSPROTECT User manual

Operating Manual
In accordance with EC Machinery Directive 2006/42/EG
EN(english-language version)
Krantz GmbH | Uersfeld 24 | 52072 Aachen
Phone: [phone] - 0
Email:[e-mail]
https://www.krantz.de Revision: 00- Nov.2020
Krantz VIRUSPROTECT
Krantz
VIRUS
PROTECT

Operating Manual Krantz VIRUSPROTECT
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Table of Contents
Page
1. Explanation of Symbols / General Information 3
2. Certificate 4
3. Overview on control elements and functional elements 5
4. Safety 7
5. Device Description and Sites of Operation 9
6. Delivery Condition 10
7. Transport 11
8. Commissioning 12
9. Maintenance & Service 19
10. Consumables 33
11. Technical Specifications 34
12. Declaration of Conformity 35
13. Storage 36
14. Disposal 36

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1. Explanation of Symbols / General Information
The following symbols serve as references in this manual:
Symbol
Meaning
Warning of electrical voltage
This symbol indicates that there is a danger to the life and health of people due to electrical
voltage.
Warning
This denotes a hazard with a low level of risk which, if not avoided, may result in minor or
moderate injury.
Caution
This denotes a hazard with a low level of risk which, if not avoided, may result in minor or
moderate injury.
The signal word indicates important information (e.g. property damage), but not
hazards.
Note / Info
Notes with this symbol help you to carry out your work quickly and safely.
Refer to the manual
Notes with this symbol indicate that the operating manual must be heeded.
Wear protective gloves
Notes with this symbol indicate that protective gloves must be worn.
Wear protective mask
Notes with this symbol indicate that a protective mask must be worn.
Wear safety shoes
Notes with this symbol indicate that safety shoes must be worn.
The digital version of the operating and maintenance instructions can be found here
https://www.krantz.de/fileadmin/user_upload/FM_Krantz/VirusProtect/Krantz_VIRUSPROTECT_Anleitung.pdf

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2. Certificate
Krantz has a large number of certificates and accreditations, the scope of which includes room air purification
systems such as the Krantz VIRUSPROTECT. This ensures a high and consistently-assured quality of the
devices.
In addition to many other accreditations, Krantz has at its disposal the environmental management system
DIN EN ISO 14001 and the ability to carry out hygiene inspections on air ventilation systems in accordance
with VDI 6022.
Krantz GmbH | Uersfeld 24 | 52072 Aachen
Krantz Air Technologies – Certified Quality
For further information on the following accreditation, please contact
us at [e-mail] or [phone]
VDI 6022 Trained staff category A & B

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3. Overview on control elements and functional elements
Twist Outlet
Broad Multiplex Outlet
Control Panel
Upper Front Cover
(Fan chamber)
Power Cord and
Type Plate
Lower Front Cover
(Filter chamber)
Concealed Castors
Air Intake
Perspective Krantz VIRUSPROTECT front side Perspective Krantz VIRUSPROTECT back side

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3.1 Type plate and mains power socket
Type plate
Serial Number
QR-Code with Reference
to Operating Instructions
CE-Mark
Mains Power Socket
On / Off Switch
3.2 Control panel with display
Display
Button ▲:
Return to Start Screen
Button ▼:
Request Status Message
Function Keys for
Preselection
of Volume Flow
Cover Service Buttons
(To be opened by authorized personnel only)

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4. Safety
Read these instructions carefully before commissioning/using the device and always keep them
in the immediate vicinity of the installation location or on the device itself!
The Krantz VIRUSPROTECT has an excellent filtration efficiency for virus particles and other
microorganisms (≥99.995%) thanks to the HEPA filter stage it uses. At the same time, these
captured virus particles and microorganisms are permanently passively inactivated. The degree
of inactivation is ≥ 99.95%, which means that for 100,000 virus particles, a maximum of 50 can
survive. In other words, the virus load is reduced by a factor of 2,000!
Irrespective of this excellent separation and inactivation efficiency, the Krantz VIRUSPROTECT
cannot prevent direct infection of a healthy person by an infected person through direct coughing.
Moreover, the official measures (e.g. the Hand, Face, Space rules) must still be observed and cannot
be overridden.
4.1 Warnings, General
Read all safety instructions and warnings carefully and follow these safety instructions and
warnings.
Failure to follow safety instructions and warnings can result in electric shock, fire, and/or serious
injury.
Retain all safety instructions and warnings for future reference.
4.2 Warnings, Device-related
Children under 8 years of age, as well as people with reduced physical, sensory, or mental capabilities
or a lack of experience and/or knowledge, may only operate the device under supervision.
 Do not operate the device in rooms or areas at risk of explosion and do not set the device up in
such rooms or areas.
 Do not operate the device in an aggressive atmosphere.
 Set up the device in an upright and stable position on a stable surface.
 Do not expose the device to direct water jets.
 Never insert objects or appendages into the device.
 Do not cover the device while it is in operation.
 Transport the device only when it has been switched off and after the power plug has been removed
from the socket.
 Do not sit on the device.
 The device is not a toy. Keep children and animals away. Only use the device under supervision.
 Before each use, check the device, its accessories and connecting parts for possible damage. Do
not use any defective devices or device parts.
 Make sure that all electrical cables outside the device are protected from damage (e.g. from
animals). Never use the device if the electrical cables or the power supply have been damaged.
 The electrical connection must be a 230V protective contact socket with a fuse of at least 10A.
 Choose extension cords for the power cord according to specifications. Fully unroll the extension
cord. Avoid electrical overload.
 Before performing maintenance, servicing or repair work on the device, pull the power cord out of
the power socket by grasping the power plug.
 Switch the device off and unplug the power cord from the power socket when you are not using
the device.
 Never use the device if you notice any damage to the power plug or power cord.

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 If the power cord of this device is damaged, it must be replaced by the manufacturer, their
customer service, or a similarly qualified person in order to avoid danger.
 Defective power cords pose a serious health risk!
 Make sure that the air inlet and outlet are open.
 Make sure that the immediate area around the air inlet and outlet is always free of loose objects
and dirt.
 Do not remove any safety signs, stickers, or labels from the device. Keep all safety signs, stickers,
and labels in legible condition.
 Dispose of replaced filters properly.
 Never use the device as a shelf or step.
 Do not move the device when it is switched on.
 Do not operate the device without built-in filter elements!
 The device is not a toy and does not belong in the hands of children.
 Risk of suffocation!
Do not leave the packaging material laying around carelessly. It could become a dangerous toy for
children.
 The upper front cover may only be opened by an authorized electrician.
4.3 Intended Use
Only use the device to purify atmospheric air in compliance with technical specifications and safety
instructions. The device is intended for indoor air purification in highly frequented public areas, such as
 class rooms in schools,
 assembly rooms in public institutions,
 hospitals and military hospitals,
 waiting rooms in doctors‘ offices,
 retirement homes,
 conference rooms,
 waiting and reception areas,
 exhibition stands,
 shopping centers,
 drug stores and pharmacies,
 production rooms,
 dining halls,
 fitness studios,
 private housholds,
 etc.
4.4 Improper Use
Any operation or use other than that specified in these instructions is not permitted. In the event of
non-compliance, all liability and the right to warranty expire.
 Do not use the device outdoors.
 Unauthorized structural changes and attachments or modifications to the device are forbidden.
 Do not place the device on a wet or flooded surface.
 Do not place any objects, such as clothing, on the device.

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4.5 Personnel Qualifications
Persons who use this device must:
 be aware of the dangers that arise when working with electrically-operated air purifiers,
 have read and understood the operating instructions, especially the section on safety.
4.6 Residual Risks, Warnings about Electrical Voltage
 Work on electrical components may only be carried out by an authorized specialist.
 Before performing any work on the device, remove the power plug from the power socket!
 Unplug the power cord from the power socket by gripping the plug.
4.7 What to Do in an Emergency
1. Turn off the device.
2. In an emergency, disconnect the device from the power supply: Pull the connection cable out of
the power socket by gripping the power plug.
3. Do not reconnect a defective device to the power supply.
4. Contact the manufacturer or have the device checked and repaired by an authorized specialist.
5. Device Description and Sites of Operation
The Krantz VIRUSPROTECT filter device is used to filter room air in recirculation mode.
It is preferably used in heavily frequented public areas and reliably reduces the number of virus particles,
microorganisms, particulate matter, and aerosols.
The filtration efficiency of the HEPA filter element in use is 99.995% in the MPPS. 1)
This means that almost all virus particles, bacteria, fungal spores, allergens, and germs are retained in the
HEPA filter.
Thanks to the patented inactivating lining of the pre-filter and HEPA filter elements, together with the lined filter
housing, these retained virus particles and microorganisms are inactivated. In other words, almost (more than
99.95% 2)) all viruses and microorganisms are killed.
This prevents the uncontrollable proliferation of any microorganisms, viruses, or otherwise potentially harmful
material.
No additional energy sources, such as UV-C light or thermal heat sources, are required to inactivate these
viruses and microorganisms. The Krantz VIRUSPROTECT works in a purely passive manner.
By not using heating systems or UV-C light, there are no hazardous substances when operating the Krantz
VIRUSPROTECT. The device works 100% ozone free.
The brushed stainless steel sheeting is corrosion-resistant and possesses an antibacterial effect from the
ions on its chrome-nickel surface.
For typical locations of the device, see 4.3 Intended Use.
1) Most Penetrating Particle Size
2) Source: OFI (Österreichisches Forschungs- und Prüfinstitut)

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5.1 Design of the Device
The device is made of high-quality, brushed stainless steel.
On the control side there are 2 easily removable maintenance covers that allow for easy maintenance and
service, see chapter 9. The smooth surface of the stainless steel design enables an easy wipe-down,
disinfection, and decontamination of the outer housing walls.
The device is constructed in the air-flow direction as follows:
 Base frame with suction opening, inactivating lining,
 Pre-filter stage, filter class ePM10 in accordance with ISO 16890, inactivating lining (old M5,
in accordance with EN779),
 main filter stage; Filter class H14 in accordance with EN1822, inactivating lining,
 Sound absorption elements, arranged on the suction side of the fan,
 EC fan,
 Sound absorption elements, arranged on the pressure side of the fan,
 Activated carbon filter mat, AKS6221,
 Discharge elements, on the front side, designed as individually adjustable jet bundle
elements for jet dispersion into the depths of the room,
 Discharge elements on the upper cover, designed as a twist outlet for radial, horizontal
jet spread.
The Krantz VIRUSPROTECT filter device is also equipped with the following elements:
 Power cord, 5 meters long, at the rear,
 Main switch, at the rear,
 Control panel with LCD display, on the front,
 4 buttons for easy preselection of volume flow,
 Analog differential pressure transducer for continuous measurement and display of
differential pressures in the pre-filter and HEPA filter stages, as well as the message:
CHANGE FILTER ELEMENT,
 Analog differential pressure transducer for continuous measurement, stabilization, and
display of volume flow,
 CO2sensor for continuous measurement and display of CO2content in room air, as well
as the message: VENTILATION REQUIRED,
 4 stable swivel castors with wheel and turntable brakes,
 Complete inner lining of the housing and removable maintenance cover with sound-
absorbing materials.
5.2 Cleaning of the Device
The stainless steel surface can be cleaned particularly well and thoroughly. For cleaning, we recommend the
use of a commercially available stainless steel cleaner such as is used for kitchen appliances. Apply the
cleaner with the help of a microfiber cloth in the direction of the cut to remove fingerprints, grease stains, etc..
Then rub the surface dry with a lint-free cloth to avoid streaks. If necessary, the VIRUSPROTECT can be
cleaned with commercially available disinfectants. The surface structure is not changed by cleaning or
disinfection.
6. Delivery Condition
The device is delivered upright on a pallet. The device is also packed in a sturdy cardboard box with foam
lining, which is lashed to the pallet.
This allows the pallet to be easily transported and lifted with a suitable floor conveyor, e.g. forklifts, pallet
trucks, etc.
Additionally, a ramp is included with the first delivery, which allows the device to be safely lowered from the
pallet.
When lowering the device from the pallet, make sure the device does not tip over. Krantz recommends that
you bring the device upon delivery to its installation site while still in its packaging and only remove the
packaging there.

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7. Transport
The device is designed for easy transport, for example using its 4 swivel castors to move inside buildings. The
swivel castors are equipped with wheel and swivel brakes. The dimensions allow for the device to be pushed
through standard doors and for normal passenger lifts to be used.
Observe the following information before each transport:
 Switch off the device.
 Unplug the power cord from the power socket by gripping the plug.
 For transport, release the wheel and turntable brakes on the 4 swivel castors.
Wheel and slewing ring brake
Transport roller
 Only roll the device on smooth and level surfaces.
 Make sure that the device does not tip over.
 After the device has reached its final installation site, remove all packaging materials that protect
the device during transport.
 If the device is damaged, contact the manufacturer.
 As soon as the final installation site is reached, lock all of its wheels by activating the wheel and
turntable brakes.
 Additionally secure the device against falling over by mounting cover elements to each roller.
Actuating the wheel and slewing ring
brake by pressing down the locking device
Releasing the wheel and slewing ring brake
by pushing up the locking device

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If the device is to be transported up or down stairs, special precautionary measures must be taken. People
who lift the device must wear safety shoes.
8. Commissioning
8.1 Scope of delivery of the device
The device is supplied with all items required for operation. These include:
 1 fully assembled device,
 1 pre-filter element, already installed and ready for use,
 1 HEPA filter element, already installed and ready for use,
 1 activated carbon filter mat, already installed and ready for use,
 1 power cord,
 4 plates to cover the swivel castors,
 1 operating manual + quickstart guide,
 1 set of carrying straps
8.2 Setting Up the Device at the Destination Point
The device is moved to its destination point. To do this, the instructions in sections 6 and 7 must be
observed.
 Unpack the device carefully.
 The device may only be set up on level and stable floors.
 The transport castors are equipped with wheel and turntable brakes. Before putting the
device into operation, the wheel and turntable brakes must be secured so that the device
cannot roll away.
 Attach the four cover plates to the four castors
 Connect the power cord. To do this, insert the connector on the back of the device. Then
insert the device's protective contact plug into the 230V protective contact socket.
 Make sure that curtains or other objects do not cover the air distribution elements or the
intake. For normal rooms, we recommend a central frontal arrangement or an arrangement
in one corner of the room. See the following illustrations.
The device is supplied with carrying
straps for the purpose of lifting. This
requires four people who position
themselves at each corner and lift the
device. The total weight is ~150kg.
The illustration on the left shows similar
carrying straps.
Keep these straps for possible later
transport.
Alternatively, a customer-provided hand
truck for the use on stairs can be utilized.
See illustration on the right.

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When the device is first delivered, it is equipped with all the necessary operating materials (filter elements).
Replacements for these pre-filter and HEPA filter elements should be procured from Krantz
GmbH, since only these filter elements have an inactivating, antiviral lining! The use of
other filter elements will void any warranty and Krantz cannot accept any liability for any
damage that results! A list of the required spare parts can be found in section 10
“Consumables” or contact us directly:
Krantz GmbH I Uersfeld 24 I 52072 Aachen
Phone: [phone]
[e-mail]
Below are some example images that show the best possible placement of the Krantz VIRUSPROTECT
within a respective installation location. The aim is to filter and circulate all of the room air, as shown in the
graphic below and in the images of laboratory tests.
Schematic representation of the circulation
Circulation of air within the rooms

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Typical examples are shown in the following figures and outlines.
Classrooms Reception areas, foyers
Open plan offices Placement in a square room
Placement of 2 pieces Krantz VIRUSPROTECT in rectangular
rooms > 120m².
Placement in L-shaped rooms

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8.3 Switching on and operating the device
Erklärung der Bedien- und Funktionstasten siehe Kapitel 3
Turn the main switch to position I(= on)
⇒The device is ready for operation, and after a short time, the following start menu appears on the
display:
Button ▲: back to the start menu
Button ▼: Request status messages
Function keys for preselection of volume
flow F1 to F4
Service button cover:
May only be removed by trained personnel
For a simple and intuitive operation, Krantz has instituted the following default settings at the factory
and recommends the following pre-selections, depending on the size of the room and the number of
people. In case of doubt, select the next higher level.
Button
Volume flow [m³/h]
Room size [m²]
Number of people [n]
F1
250
up to ~30
up to ~10
F2
500
~30 up to ~60
~10 up to ~20
F3
750
~60 up to 90
~20 up to ~30
F4
1,000
over ~90
over ~30

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⇒After pre-selecting the desired volume flow by pressing the corresponding button F1 or F2 or F3 or
F4, the fan starts
⇒The selected volume flow is kept constant by internal control
⇒The current volume flow is shown on the display of the control panel
8.4 Switching Off the Device
Press the function key F1 for at least 3 seconds
⇒Fan goes out of operation
⇒Display remains on and the current status is shown
Turn the main switch to position 0(= OFF)
⇒Device is no longer ready for operation
8.5 Device Status Messages
The following status messages can be shown on the display by pressing the down arrow key (▼)
when the device is in operation:
• current volume flow
• current CO2concentration
• current pressure differential of the pre-filter stage
• current pressure differential of the HEPA filter stage
• Number of hours in operation

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8.6 Device Warning Messages
If one of the warning messages listed below appears, the background color of the display changes to
red and the warning message is shown as plain text on the display.
In order to continue filtering, the device does not switch off when a warning is pending but
remains in operation.
The warning message (red background color and plain text display) disappears after the fault has
been rectified.
8.6.1 CO2Limit Reached
The CO2sensor integrated in the device permanently records the CO2concentration and displays it
in plain text.
When the set warning value (1,000ppm) is reached, the warning message CO2LIMIT VALUE
REACHED appears. Index values and limit values are set at the factory. See section 8.7.
To remedy: Ventilate the room to reduce the CO2concentration.
After the current CO2concentration has fallen below the threshold set value
(850ppm), the warning message is automatically reset.
8.6.2 Change Pre-Filter Element
The differential pressure transducer integrated in the device permanently records the pressure
differential of the pre-filter stage and displays it as plain text.
When the set warning value is reached, the warning message CHANGE PRE-FILTER ELEMENT
appears. Index values and limit values are set at the factory. See section 8.7.
To remedy: Change the pre-filter element. See section 9.1.
After the current differential pressure has fallen below the set warning value, the
warning message is automatically reset.

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8.6.3 Change HEPA Filter Element
The differential pressure transducer integrated in the device permanently records the pressure
differential of the HEPA filter stage and displays it as plain text.
When the set warning value is reached, the warning message CHANGE HEPA FILTER ELEMENT
appears. Index values and limit values are set at the factory. See section 8.7.
To remedy: Change the HEPA filter element. See section 9.2.
After the current differential pressure has fallen below the set warning value, the
warning message is automatically reset.
8.6.4 Service Required
The controls count the total number of operating hours, i.e. the hours in which the fan has been in
operation, independent of the preset volume flow.
When the set warning value is reached, the warning SERVICE REQUIRED appears. Index values
and limit values are set at the factory. See section 8.7.
To remedy: Service the device. See section 9.3.
The operating hours counter is reset by pressing and holding down the F4 button for
at least 3 seconds. A reset is only possible if the message SERVICE REQUIRED is
present.
8.7 Index and Limit Values
The following index and limit values are set at the factory.
Volume flow, level 1
[m³/h]
250
Volume flow, level 2 [m³/h] 500
Volume flow, level 3 [m³/h] 750
Volume flow, level 4 [m³/h] 1,000
Warning
CHANGE PRE-FILTER ELEMENT
[Pa]
250
Warning
CHANGE HEPA FILTER ELEMENT
[Pa]
400
Warning
CO2LIMIT REACHED
[ppm]
1000
Warning
SERVICE REQUIRED
[hB]
5,000

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9. Maintenance & Service
The upper front cover may only be opened by an authorized electrician.
Broad Multiplex Outlet
(remove for changing the activated carbon filter)
Upper Front Cover
(Can only be opened by a qualified electrician)
Lower Front Cover
(remove for changing the pre-filter and the HEPA
filter)
Krantz recommends changing the pre-filter element, HEPA filter element, and the inner lining of the
raw gas chamber after 12 months, regardless of the differential pressure, since after this time, the
effectiveness of the inactivating lining can decrease. A list of the required spare parts can be found
in section 10 “Consumables” or contact us directly:
Krantz GmbH I Uersfeld 24 I 52072 Aachen
Phone: [phone]
[e-mail]
9.1 Changing the Pre-filter Element
The device’s display indicates when the filter element of the pre-filter stage must be replaced. See
8.6.2.
Replacements for these pre-filter and HEPA filter elements should be procured from Krantz
GmbH, since only these filter elements have an inactivating, antiviral lining! The use of
other filter elements will void any warranty and Krantz cannot accept any liability for any
damage that results! A list of the required spare parts can be found in section 10
“Consumables”.
Although the lining has an inactivating effect, Krantz recommends the use of personal protective
equipment consisting of disposable gloves and an FFP2 mask.

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Carry out the following steps to change the pre-filter element:
 Shut off the device. See section 8.4.
 Open the lower front cover by loosening the 6 hexagon socket captive screws M6.
 Hold the front cover against unintentional folding over or falling down.
 After loosening the front cover, set it aside carefully.