Grunbeck GENO-VARIO mini User manual

We understand water.
Heating water treatment system |
GENO‑VARIO mini
Operation manual

General Contact
Germany
International Sales
Phone [phone]
Technical Service
Phone [phone]
Fax [phone]
Availability
Monday to Thursday
7:00 am - 6:00 pm
Friday
7:00 am - 4:00 pm
General Contact
Germany
International Sales
Phone [phone]
Technical Service
Phone [phone]
Fax [phone]
Availability
Monday to Thursday
7:00 am - 6:00 pm
Friday
7:00 am - 4:00 pm
Copyright
The manufacturer reserves the copyright to this manual. Without the
written consent of Grünbeck Wasseraufbereitung GmbH, no part of
this manual may be reproduced in any way, nor may any part be
processed, duplicated or distributed using electronic systems.
Non-compliance with the aforementioned stipulations shall be subject
to compensation for damages.
We reserve the right to technical modifications.
© by Grünbeck Wasseraufbereitung GmbH
Original operation manual
Edition of the manual: Dezember 2020
Order no.: 100047360000_en_095

Table of contents
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Table of contents
1About this manual................................ 5
1.1 Other applicable documents ................. 5
1.2 Target group ......................................... 5
1.3 Storage of documents........................... 5
1.4 Symbols used ....................................... 5
1.5 Typographical conventions ................... 6
1.6 Validity of the manual ........................... 7
1.7 Type plate ............................................. 7
2Safety .................................................... 9
2.1 Safety measures................................. 10
2.2 Technical safety instructions............... 11
2.3 Regulations......................................... 12
2.4 Responsibilities of the qualified
specialist ............................................. 12
3Product description ........................... 14
3.1 Intended use....................................... 14
3.2 Product components........................... 15
3.3 Connections and shut-off devices....... 16
3.4 Functional description......................... 17
3.5 Accessories ........................................ 18
4Control unit......................................... 19
4.1 Overview............................................. 19
4.2 Function of operating units ................. 20
5Installation .......................................... 22
5.1 Requirements for the installation site.. 22
5.2 Checking the scope of supply............. 23
5.3 Connecting the cartridges................... 24
5.4 Installing the product .......................... 28
6Start-up ............................................... 32
6.1 Preliminary activities ........................... 32
6.2 Venting ............................................... 32
6.3 Checking for leaks .............................. 33
6.4 Starting up the product ....................... 34
7Operation............................................ 35
7.1 Sampling............................................. 36
7.2 Operating modes ................................ 36
7.3 Operating the water meter .................. 41
8Shutting down the system ................ 44
9Cleaning, inspection, maintenance.. 46
9.1 Cleaning ............................................. 46
9.2 Inspection ........................................... 47
9.3 Maintenance ....................................... 48
9.4 Consumables...................................... 50
9.5 Spare parts ......................................... 50
9.6 Wearing parts ..................................... 51
10 Malfunctions....................................... 52
11 Disposal.............................................. 54
11.1 Packaging........................................... 54

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11.2 Product................................................ 54
12 Technical specifications.................... 55
13 Other information............................... 57
13.1 Explanation of terminology.................. 57
14 Operation log...................................... 58
EU Declaration of Conformity .................... 62
Notes............................................................. 63
Notes............................................................. 64
Notes............................................................. 65
Index ............................................................. 66

About this manual
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1 About this manual
1.1 Other applicable documents
The following documents shall be deemed as applicable
documents for the GENO-VARIO mini:
●Electric circuit diagram (order no. TDe-GS000de)
●In addition, the manuals of all accessories used do apply.
1.2 Target group
This manual is intended for qualified specialists.
1.3 Storage of documents
Keep this manual and all other applicable documents, so that they
are available when needed.
Enter inspections and maintenance work performed in the
operation log in chapter 14.
1.4 Symbols used
This symbol identifies instructions that you must comply with for
your own personal safety as well as to avoid damage to
property.

About this manual
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This symbol identifies information and instructions that you must
comply with in order to avoid damage to property.
This symbol identifies important information about the product or
its handling.
This symbol identifies work that may only be carried out by
electronically trained personnel according to the VDE guidelines
or according to the guidelines of similar local institutions.
1.5 Typographical conventions
The following typographical conventions are used in this manual:
Description
Depiction
Handling instruction
One-step or
chronological
sequence of steps
does not matter
►Action
Handling instruction
multi-step and
chronological
sequence of action
steps important
1. First action
a first step
b second step
2. Second action
Result after a
handling instruction
» Result
Lists
●List item
•List sub-item

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Description
Depiction
Menu paths
Status level>Menu level
>Submenu
Display texts
Display text
Operating elements
Button/key
1.6 Validity of the manual
This manual applies to the following products:
●Heating water treatment system GENO-VARIO mini
1.7 Type plate
The type plate is located on the right next to the control unit.
Please specify the data shown on the type plate in order to speed
up the processing of your enquiries or orders.
Therefore, enter the necessary information in the table below to
have it readily available whenever necessary.

About this manual
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Item
Designation
Item
Designation
1
Type plate
2
Observe operation manual
3
CE mark
4
EAC mark
5
Disposal information
6
Nominal connection diameter
7
Nominal pressure (inlet)
8
Water temperature (inlet)
9
Nominal pressure (circuit)
10
Water temperature (circuit)
11
Ambient temperature
12
Product designation
13
QR code
14
Data matrix code
15
Order no.
16
Serial no.:
●Product designation: Heating water treatment system
GENO‑VARIO mini
●Order no.: ___________________________
●Serial no.: ___________________________

Safety
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2 Safety
WARNING: Danger due to hot surfaces because of high water
temperatures of the heating circuit.
●Risk of burns at heating circuit temperatures of more than
55 °C.
►Note the warning label “hot surfaces” in the pipe area.
►Do not touch the pipes without appropriate, protective
gloves.
WARNING: Danger due to escaping hot circulation water.
●Risk of scalding.
►Let the GENO-VARIO mini cool down to room
temperature or flush it with cold water prior to working on
it.
WARNING: Risk of touching live components.
●Risk of electric shock if the mains cables are damaged.
►Do not use any products which have a damaged mains
cable.
►Have damaged mains cables replaced without delay.

Safety
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NOTE: Inhibitors present in the heating circuit
●If inhibitors were added to the heating water, these will be
removed by the resin of the softening or mixed bed
cartridge.
►Only carry out the filter operation (refer to chapter 7.2.1).
►Check the dosing of the inhibitor during the softening or
full demineralisation operation (refer to chapter 7.2.2 or
chapter 7.2.3.
►Re-establish the required inhibitor concentration, if
necessary.
2.1 Safety measures
●Install the product in a frost-free room. Otherwise, the
product may suffer irreparable damage.
●Only transport and store the product in a frost-free
environment. Freezing residual water remaining in the
system can irreparably damage the product.
●Only use genuine spare and wearing parts for maintenance
or repair. If unsuitable spare and wearing parts are used,
the warranty for your product will be void.
●Switch off the voltage supply prior to working on system
components.
●Have electrical work done by skilled, qualified specialists
only.

Safety
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2.1.1 Warning and prohibition signs
WARNING: Sources of danger marked with warning and
prohibition signs.
●Possible sources of danger are not recognised.
►Never remove warning and prohibition signs.
►Replace damaged warning and prohibition signs.
Warning sign
Label
Meaning
This warning sign identifies hot surfaces that
must not be touched without the corresponding
precautionary measures. There is a risk of
burns!
Prohibition sign
Label
Meaning
This prohibition sign identifies the
GENO-VARIO mini as sensitive to frost. In
order to prevent any damage, it must be stored
in a frost-proof place.
2.2 Technical safety instructions
This manual contains instructions that you must comply with for
your own personal safety as well as to avoid damage to property.
The instructions are highlighted by a warning triangle and have
the following structure:

Safety
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CAUTION: Type and source of danger.
●Possible consequences
►Preventive measures
The following signal words were defined subject to the degree of
danger and may be used in the present document:
●Danger means that serious or fatal injuries will occur.
●Warning means that serious or fatal injuries may occur.
●Caution means that minor injuries may occur.
●Note (without a warning triangle) means that damage to
property may occur.
2.3 Regulations
When installing and starting up the product, amongst others,
comply with the following regulations and guidelines:
●Statutory regulations on environmental protection
●Provisions of the employers' liability insurance companies
●DIN EN 806 Specifications for installations inside buildings
conveying water for human consumption
2.4 Responsibilities of the qualified specialist
Comply with the following instructions to ensure the proper and
safe functioning of the product:
●Only perform activities described in this manual.

Safety
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●Perform all activities in accordance with all applicable
standards and regulations.
●Only use this product as intended.
●Make sure that the required inspection and maintenance
work is carried out.
●Keep this manual.

Product description
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3 Product description
3.1 Intended use
●The GENO-VARIO mini is intended for qualified specialists
for the treatment of circulation water. In Germany, the
requirements as per VDI 2035 do apply.
●The GENO-VARIO mini may only and exclusively be used
for the treatment of water in closed heating or cooling
circuits.
●For the duration of the treatment, the GENO-VARIO mini is
integrated into the circuit in the form of a bypass.
●The GENO-VARIO mini can be used in new or existing
systems.
●The GENO-VARIO mini is designed exclusively for use in
industrial and commercial applications.

Product description
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3.2 Product components
Item
Designation
Item
Designation
1
System rack
9
Air vent
2
Control unit
10
Pressure reducer
3
System separator
11
Circulation pump
4
Union nut
12
Flexible connection hoses
5
Filter
13
Retaining clamps for cartridges
6
Water meter
14
Placeholder for solenoid valve and
conductivity measuring cell
7
Conductivity measuring cell
15
Solenoid valve
8
Conductivity meter
GENO-Multi-LF

Product description
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3.3 Connections and shut-off devices
Item
Designation
Item
Designation
1
Shut-off valve for drinking water
9
Draining valve of filter
2
Test connection of upstream pressure
zone
10
Draining valve of
GENO-VARIO mini
3
Test connection of intermediate
pressure zone
11
Shut-off valve from cartridge
4
Test connection (pluggable pressure
gauge) of downstream pressure zone
12
Shut-off valve for bypass
cartridge
5
Shut-off valve for pressure reducer
13
Shut-off valve to cartridge
6
Drinking water connection
14
Connection to cartridge
7
Connection of heating/cooling circuit
15
Connection from cartridge with
sieve
8
Shut-off valve for heating/cooling
circuit
16
Connection to heating/cooling
circuit

Product description
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3.4 Functional description
The function of the GENO-VARIO mini is based on the well-
proven processes of filtration and softening or demineralisation.
The GENO-VARIO mini is integrated into the filled up heating or
cooling circuit as a bypass. Part of the circulation water
permanently flows through the GENO-VARIO mini. Prior draining
or flushing is not required.
First, the filter removes undissolved impurities such as rust or dirt
particles. Afterwards, the circulation water either flows through the
softening cartridge decaliQ:BA or the mixed bed cartridge
desaliQ:BA –depending on the accessories used.
When filling new systems, the circuit may be filled with drinking
water. The treatment of the circulation water by means of the
GENO-VARIO mini only takes place shortly before the start-up of
the heating/cooling circuit. Thus, optimum water quality is
achieved. In Germany, the requirements as per VDI 2035 do
apply.
The filling or make-up water feed of the circuit as per DIN EN
1717 can be realised by means of the integrated filling group.
The GENO-VARIO mini is available with or without conductivity
meter GENO-Multi-LF. The GENO-Multi-LF is only applied for
demineralisation.

Product description
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3.5 Accessories
Illustration
Product
Order no.
Softening cartridge
decaliQ:BA12 VARIO mini
707 765
Softening cartridge
decaliQ:BA16 VARIO mini
707 785
For water softening
Mixed bed cartridge
desaliQ:BA12 VARIO mini
707 465
Mixed bed cartridge
desaliQ:BA16 VARIO mini
707 485
For water demineralisation
Hose kit DN 20, union nut 3/4“
straight/straight, 1.5 m
707 840
For hose extension, consisting of 2 hoses with straight
connections, 2 double nipples, including seals
Hose kit DN 20, union nut 3/4“
straight/90°, 1.5 m
707 845
For hose extension, consisting of 2 hoses with straight
connection on one side and connection with 90° angle on the
other side, 2 double nipples, including seals
Without illustration
Strap wrench
105 805
To simplify the removal of the filter cylinder for the replacement of
the filter elements
Without illustration
Service kit
132 095
Service kit for the maintenance of system separators

Control unit
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4 Control unit
4.1 Overview
Item
Designation
Item
Designation
1
ON/OFF switch GENO-VARIO mini
4
Illuminated button
Flow display/start
2
Selector switch for pump switch-off
60 °C or 80 °C
5
Socket
External circulation pump
3
ON/OFF switch GENO-Multi-LF

Control unit
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4.2 Function of operating units
Button
Function
(1)
ON/OFF
switch
GENO-VARIO
mini
Switching on the GENO-VARIO mini
Rotary switch set to 1.
Switching off the GENO-VARIO mini
Rotary switch set to 0.
Rotary switch is illuminated: mains voltage is
present
(2)
Selector
switch for
pump switch-
off 60 °C or
80 °C
Switch-off of circulation pump at 60 °C.
Rotary switch set to 60° C.
Switch-off of circulation pump at 80 °C.
Rotary switch set to 80° C.
Rotary switch is illuminated: circulation pump
is running.
(3)
ON/OFF
switch GENO-
Multi-LF
GENO-Multi-LF activated:
Rotary switch set to 1.
GENO-Multi-LF not activated:
Rotary switch set to 0.
Rotary switch is illuminated: GENO-Multi-LF
is active.
(4)
Illuminated
button
Flow
display/start
In case the flow is < 200 l/h for longer than a
period of 30 sec, the circulation pump
switches off.
Illuminated button ON: Flow > 200 l/h
Illuminated button OFF: Flow < 200 l/h
Pressing the illuminated button resets the
delay time.