Grunbeck thermaliQ:FB2 User manual

We understand water.
Filling section | thermaliQ:FB2
Operation manual

Central Contact
Germany
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
Your local point of contact: see
accompanying list of
representatives
Subject to technical modifications.
© by Grünbeck Wasseraufbereitung GmbH
Translation of the original operation manual
Edition of the manual: October 2022
Order no.: 100062400000_en_055

Table of contents
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Table of contents
1About this instruction.......................... 4
1.1 Other applicable documents ................. 4
1.2 Target group ......................................... 4
1.3 Storage of the documents..................... 4
1.4 Symbols used ....................................... 5
1.5 Typographical conventions ................... 6
1.6 Validity of the instruction....................... 6
1.7 Type plate ............................................. 7
2Safety .................................................... 8
2.1 Safety measures................................... 8
2.2 Technical safety instructions................. 9
2.3 Regulations......................................... 10
2.4 Responsibilities of the qualified
specialist ............................................. 10
2.5 Responsibilities of the owner-user...... 11
3Product description ........................... 12
3.1 Intended use....................................... 12
3.2 Predictable misuse ............................. 12
3.3 Product components........................... 13
3.4 Accessories ........................................ 14
3.5 Functional description......................... 15
4Installation .......................................... 18
4.1 Requirements for the installation site.. 19
4.2 Checking the scope of supply............. 20
4.3 Installing the product........................... 21
5Start-up ............................................... 23
5.1 General procedure.............................. 23
5.2 Setting the pressure reducer .............. 24
5.3 Filling the heating ............................... 25
5.4 Handing over the product to the
owner/user.......................................... 28
6Operation............................................ 29
6.1 Functional check of the conductivity
measuring cell .................................... 29
6.2 Replacing the conductivity
measuring cell battery ........................ 30
6.3 Installation/replacement of filling
cartridge.............................................. 31
7Cleaning, inspection, maintenance.. 32
7.1 Cleaning ............................................. 32
7.2 Intervals .............................................. 33
7.3 Inspection ........................................... 33
7.4 Maintenance ....................................... 34
7.5 Consumables...................................... 38
7.6 Spare parts ......................................... 38
7.7 Wearing parts ..................................... 38
8Malfunction......................................... 39
9Disposal.............................................. 40
9.1 Packaging........................................... 40
9.2 Product ............................................... 40
10 Technical specifications ................... 41
11 Operation log...................................... 42
11.1 Start-up log ......................................... 42
11.2 Maintenance ....................................... 43

About this instruction
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1 About this instruction
1.1 Other applicable documents
The following documents also apply in the case of the filling
section thermaliQ:FB2:
●The manuals of all accessories used.
1.2 Target group
The intended audience for this manual is comprised of qualified
specialists and owner-users.
1.3 Storage of the documents
Keep this instruction and all other applicable documents, so that
they are available when needed. Make sure that your qualified
specialist enters the proper start-up and annual maintenance in
the operation log in chapter 11.

About this instruction
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1.4 Symbols used
This symbol identifies instructions that you must comply with
for your personal safety.
This symbol identifies 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 is only allowed to be carried out
by qualified specialists. In Germany, the installation company
must be registered in an installation directory of a water supply
company acc. to §12(2) AVB Wasser V (German Ordinance on
General Conditions for the Supply of Water).

About this instruction
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1.5 Typographical conventions
The following typographical conventions are used in this
instruction:
Description
Depiction
Handling instruction
One-step or chronological
sequence of steps does
not matter
Action
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
Menu paths
Status level>Menu
level>Submenu
Display texts
Display text
Operating elements
Button/key
1.6 Validity of the instruction
This instruction applies to the following products:
●Filling section thermaliQ:FB2

About this instruction
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1.7 Type plate
The type plate is located on the treatment unit.
Please specify the data shown on the type plate in order to speed
up the processing of your enquiries or orders.
►Enter the necessary information in the table below to have
it readily available whenever necessary.
Item
Designation
Item
Designation
1
Product designation filling group
2
Order no. filling group
3
DIN for system separator
4
Nominal diameter
5
Nominal pressure
6
DVGW test mark
7
Observe operation manual
8
Ambient temperature
9
Nominal flow
10
Max. operating pressure
11
Ambient temperature
12
QR code
13
Order no. filling section
14
Serial no. filling section
15
Data matrix code
16
Product designation filling section
●Product designation: Filling section thermaliQ:FB2
●Order no.: 707 760
●Serial no.: ______________________

Safety
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2 Safety
Warning: Contamination of drinking water due to incorrect
handling.
●Risk of infectious diseases.
►Have the installation, start-up and annual maintenance
carried out by qualified specialists only.
2.1 Safety measures
●Carefully read this manual before operating your product.
●Install the product in a frost-free room. Otherwise, the
product may suffer irreparable damage. The consequence
may be water damage.
●Only use genuine spare parts for maintenance or repair.
If unsuitable spare parts are used, the warranty for your
product will be void.
●Only have persons working on your product who have read
and understood this manual and that are qualified to do
such work on account of their vocational training.
●Only operate the product if all components are installed
properly.
●Safety devices must never be removed, bridged or
otherwise tampered with.

Safety
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2.2 Technical safety instructions
This manual contains instructions that you must comply with for
your personal safety as well as to avoid damage to property.
The information and instructions are highlighted by a warning
triangle and have the following structure:
CAUTION: Type and source of danger
●Possible consequences
►Measures for avoidance
The following signal words are defined depending on the degree
of danger, and can be used in this manual:
●DANGER means that death or serious injury will result.
●WARNING means that death or serious injury can result.
●CAUTION means that minor bodily injuries can occur.
●NOTE (without warning triangle) means that property
damage can occur.

Safety
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2.3 Regulations
When installing and starting up the system, 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
●VDI 6023 Part 5 –7 Specifications for installations inside
buildings conveying water for human consumption
●DIN EN 1717 Protection against pollution of potable water
installations and general requirements of devices to
prevent pollution by backflow
●VDI 2035 Prevention of damage in water heating
installations - Water-side corrosion
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 these instructions.
●Perform all activities in accordance with all applicable
standards and regulations.
●Brief the owner/user on the function and operation of the
product.
●Advise the owner/user of the maintenance of the product.
●Instruct the owner-user about possible dangers that can
arise during operation of the product.

Safety
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2.5 Responsibilities of the owner-user
Comply with the following instructions to ensure the proper and
safe functioning of the product:
●Arrange for a qualified specialist to carry out installation,
start-up and maintenance.
●Have the product explained to you by the qualified
specialist.
●Only perform activities described in these instructions.
●Do not carry out any activities that are explicitly marked
for a qualified specialist.
●Only use this product as intended.
●Make sure that the required inspection and maintenance
work is carried out.
●Keep this instruction.

Product description
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3 Product description
3.1 Intended use
The thermaliQ:FB2 filling section is used for safely connecting
a heating system to a drinking water installation in accordance
with the standards.
The filling section protects the drinking water against backflow
of water from the heating circuit.
The pressure reducer of the filling section regulates the filling
pressure.
The filling section is used for the complete desalination of raw
water for the first filling or replenishment of heating systems.
The filling section is only allowed to be installed in horizontal
pipes.
3.2 Predictable misuse
Installation in vertical pipes.

Product description
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3.3 Product components
Item
Designation
Item
Designation
1
Shut-off valve (inlet)
2
Pressure reducer
3
Shut-off valve (outlet)
4
Vent valve (inlet)
5
Conductivity measuring cell
6
Vent valve (outlet)
7
Type plate
8
Filling cartridge
9
O-ring
10
Plastic bell housing
11
Drain funnel
12
Pressure gauge
13
Test connection inlet pressure
zone
14
Rotary flange (system separator)
15
Test connection intermediate
pressure zone

Product description
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3.4 Accessories
Figure
Product
Order no.
Filling cartridge desaliQ:HB4
with bottle adapter
707 150
For the full demineralisation of water for heating systems.
Filling cartridge desaliQ:HB4
without bottle adapter
707 155
desaliQ connecting adapter
707 276
Adapter for connecting the filling cartridge desaliQ:HB4
to the treatment group thermaliQ:HB2.
desaliQ hose set
707 850
2 connection hoses with a length of 1.5 m, for connecting
upright full demineralisation units with the treatment group
thermaliQ:HB2.
Fine filter pureliQ:K20
101 220
The fine filter pureliQ:K filters the drinking water and
protects the domestic water installation according
to DIN EN 806.
Safety device protectliQ
126 400
The safety device protectliQ is a product for the protection
from water damage in one- and two-family homes.
Without illustration
Service set
132 095
Service set for the maintenance of system separators.

Product description
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3.5 Functional description
The filling section thermaliQ:FB2 consists of a system separation
unit, a pressure reducing unit and a treatment unit.
The raw water for filling the heating system flows through the inlet
shut-off valve and the dirt trap into the system separator unit.
After the system separator unit, the water flows through the
pressure reducer. The pressure reducer ensures that the filling
pressure in the heating system is not exceeded. The filling
pressure is displayed on the pressure gauge.
3.5.1 System separator
The system separator BA according to DIN EN 12729 is a safety
valve and protects the drinking water from contamination up to
category 4.
The system separator consists of inlet pressure, middle pressure
and outlet pressure zones. If pressure fluctuations occur in the
system and the primary pressure thus drops below the outlet
pressure, the middle pressure zone is emptied via the relief valve.
This prevents water from flowing back into the drinking water
system.

Product description
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3.5.2 Pressure reducer
The pressure reducer reduces the pressure on the inlet side
(primary pressure) to the desired pressure on the outlet side
(back pressure).
3.5.3 Treatment group
Physical
The raw water passes through the shut-off valve into the filling
cartridge desaliQ:HB2. The water flows through the mixed bed of
the filling cartridge from top to bottom. The water is demineralised
by the ion exchange process.
The demineralised water passes through the conductivity
measuring cell and flows into the heating system.
A non-return valve at the outlet of the treatment group prevents
water from flowing back from the heating system.
Chemical
The mixed-bed resins consist to one part of a highly acid cation
exchanger resin and to the other part of a highly alkaline anion
exchanger resin. In the mixed-bed cartridges, the two
components are completely mixed.
The cation exchanger resin removes all positively charged ions,
the so-called cations, from the raw water. All cations contained
in the raw water such as calcium, magnesium or sodium are
exchanged for H+ions.

Product description
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The anion exchanger resin is used in full demineralisation to filter
off negatively charged ions, the so-called anions. All anions such
as nitrate, phosphate, sulphate, chloride and hydrogen carbonate
contained in the raw water are exchanged for OH-ions.
Full demineralisation removes almost all undesired components
from the inlet water. Thanks to the highly alkaline anion
exchanger resin, silicic acid and carbon dioxide are also filtered
off. The H+and OH-ions generated during the exchange process
combine to H2O. The result of the full demineralisation is pure
water.

Installation
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4 Installation
The installation of a filling section represents a major
intervention into the drinking water system and may only
be performed by a qualified specialist.
Item
Designation
1
Drinking water filter pureliQ:KD

Installation
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4.1 Requirements for the installation site
Observe local installation directives, general guidelines and
technical specifications.
●The installation site must be frost-proof and ensure the
product is protected from chemicals, dyes, solvents and
vapours.
●The installation room must have a drain connection
(DN 40).
●A floor drain suitable for the system size must be available
at the installation site or a protection device e.g. protectliQ
or a protection device with water stop of the same quality
must be installed.
●A drinking water filter must be installed upstream of the
product.

Installation
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4.2 Checking the scope of supply
Item
Designation
Item
Designation
1
Water meter screw fittings
2
Filling section
3
Flat seal
4
Non-return valve
5
Flat gasket with cap sieve
6
Filling cartridge desaliQ:HB2
7
Operation manual
►Check the scope of supply for completeness and possible
damage.