Grunbeck softliQ:SD Series, softliQ:SD18, softliQ:SD21, softliQ:SD23, softliQ:MD Series Operation Manual

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Water softener | softliQ:SD

Operation manual

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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

Copyright
The manufacturer reserves the copyright to this operation 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 of the aforementioned requirements shall be subject to compensation.

Subject to technical modifications.
© by Grünbeck Wasseraufbereitung GmbH

Translation of the original operation manual
Edition of the operation manual: May 2019
Order-no.: TD3-BS001en_014

Table of contents

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Table of contents

Table of contents ................................................................ 3

1 About 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 ............................................................ 4

1.5 Typographical conventions ........................................ 5

1.6 Validity of the instruction ............................................ 5

1.7 Type plate .................................................................. 6

2 Safety ......................................................................... 7

2.1 Safety measures ........................................................ 7

2.2 Technical safety instructions ...................................... 8

2.3 Regulations ................................................................ 8

2.4 Responsibilities of the specialist installer ................... 8

2.5 Responsibilities of the owner / user ........................... 9

2.6 Permitted regenerant ................................................. 9

3 Product description ................................................ 10

3.1 Intended use ............................................................ 10

3.2 Product components ................................................ 11

3.3 Functional description .............................................. 12

3.4 Function ................................................................... 13

3.5 Additional equipment softliQ:SD21 and

softliQ:SD23 ............................................................. 14

3.6 Product registration .................................................. 14

3.7 Accessories ............................................................. 15

3.8 Inputs and outputs of the control unit ....................... 17

4 Installation ............................................................... 19

4.1 Requirements for the installation site ....................... 20

4.2 Check the scope of supply ....................................... 21

4.3 Installing the product ................................................ 22

5 Start-up .................................................................... 25

5.1 How to start up the product ...................................... 25

5.2 Handing over the product to the owner / user .......... 34

6 Operation ................................................................. 35

6.1 Touch display ........................................................... 35

6.2 Menu structure ......................................................... 38

6.3 Connection to Grünbeck Cloud ................................ 41

6.4 Refilling salt tablets .................................................. 46

6.5 Starting a manual regeneration ............................... 47

6.6 Determining and entering the water hardness ......... 47

6.7 Select regeneration time .......................................... 49

6.8 Set the blending valve ..............................................49

6.9 Installer level (code 005) ..........................................50

6.10 Sending an email if there is a malfunction ................52

7 Cleaning, inspection, maintenance ........................53

7.1 Cleaning ...................................................................53

7.2 Inspection .................................................................54

7.3 Intervals ....................................................................54

7.4 Maintenance .............................................................55

7.5 Consumables ............................................................57

7.6 Spare parts ...............................................................57

7.7 Wearing parts ...........................................................58

8 Malfunction ...............................................................59

8.1 Display messages ....................................................59

8.2 Other observations ...................................................63

9 Shut-down and restart .............................................64

9.1 Shut-down ................................................................64

9.2 Restart ......................................................................64

10 Dismantling and disposal .......................................65

10.1 Dismantling ...............................................................65

10.2 Disposal ....................................................................66

11 Technical specifications .........................................67

12 Other information .....................................................69

12.1 Sodium content in the water .....................................69

12.2 Hardness ranges ......................................................69

13 Operation log ............................................................70

1st maintenance ................................................................71

2nd maintenance ...............................................................72

3rd maintenance ................................................................73

4th maintenance ................................................................74

5th maintenance ................................................................75

6th maintenance ................................................................76

EC Declaration of Conformity ..........................................77

Index ...................................................................................78

About this instruction

BA_TD3-BS001en_014_softliQ-SD

This symbol identifies instructions that you must comply with for your personal safety as
well as to avoid damage to property.

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 is only allowed to be carried out by a specialist installer.
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).

This symbol designates tasks that may only be performed by Grünbeck's technical
service / authorised service company or by specialist installers trained by Grünbeck.

This symbol identifies work that may only be carried out by qualified electrical experts
according to the VDE guidelines or according to the guidelines of similar local institutions.

1 About this instruction

1.1 Other applicable documents

The following documents also apply in the case of the softliQ:SD:

● For Grünbeck's technical service / authorised service company:
Technical service manual of water softener softliQ:SD, order-no.: TD4-BS001

● The manuals of all accessories used.

1.2 Target group

The intended audience for this manual is comprised of specialist installers and owner-users.

1.3 Storage of the documents

Keep this instruction and all other applicable documents, so that they are available when
needed.

1.4 Symbols used

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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

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

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:

● Water softener softliQ:SD18

● water softener softliQ:SD21

● water softener softliQ:SD23

About this instruction

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1.7 Type plate

The type plate is located under the lid of the brine tank.

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

Observe operation manual

2

Disposal information

3

SVGW test mark

4

DVGW test mark

5

CE mark

6

Nominal pressure

7

Operating pressure

8

Ambient temperature

9

Water temperature

10

Rated voltage range / frequency

11

Rated load

12

Protection / protection class

13

Product designation

14

QR code

15

Data matrix code

16

Order no.

17

Serial no.

Overview

● Product designation: Water softener softliQ:SD___________

● Order no.: 189_____________

● Serial no.: BS______________

Safety

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2 Safety

WARNING: Contamination of drinking water due to incorrect handling.

● Risk of infectious diseases.
► Have the installation, commissioning and annual maintenance carried out by

specialist installers.

2.1 Safety measures

● Carefully read this manual before operating your product.

● Only operate the product if all components are installed properly.

● 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.

● Keep your product permanently connected to the power and water supply.

● Safety devices must never be removed, bridged or otherwise tampered with.

● Do not operate any products which have a damaged power supply cable. This can

lead to injuries due to electric shock.
Have damaged power supply cables replaced without delay.

● Mains cables may only be replaced by the manufacturer or by authorised
personnel.

● Observe the maintenance intervals (refer to chapter 7). Failure to comply can result
in microbiological contamination of your drinking water installation.

● Children are not allowed to play with the product.

● This product can be used by children over 8 years of age and persons with limited

abilities or lack of experience if they are supervised or instructed in the safe use of
the product and understand the resulting hazards.

● Cleaning and maintenance must not be carried out by children.

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.

2.3 Regulations

Comply with the following regulations and directives, amongst others, during installation,
start-up and maintenance:

● 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

2.4 Responsibilities of the specialist installer

Comply with the following instructions to ensure the proper and safe functioning of the product:

● Only perform activities described in this manual.

● 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.

● Fill in the operation log (refer to chapter 13)

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 specialist installer to carry out installation, start-up and maintenance.

● Have the product explained to you by the specialist installer.

● Only perform activities described in this manual.

● Do not carry out any activities that are explicitly marked for a specialist installer.

● Only use this product as intended.

● Make sure that the required inspection and maintenance work is carried out.

● Keep this instruction.

2.6 Permitted regenerant

softliQ water softeners are only allowed to be operated with the following regeneration agent:

● Salt tablets according to DIN EN 973 type A

Product description

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3 Product description

3.1 Intended use

● The softliQ water softener may only and exclusively be used for the softening and
partial softening of cold drinking water.

● The softliQ water softener protects water pipes and connected water-carrying
systems from scaling or from malfunctions and damage caused by scaling.

● The water softener softliQ:SD18 is designed for the continuous supply of 1 to 2
family homes (max. 4 persons) with soft water.

● The water softener softliQ:SD21 is designed for the continuous supply of 1 to 4
family homes (max. 9 persons) with soft water.

● The water softener softliQ:SD23 is designed for the continuous supply of 1 to 5
family homes (max. 12 persons) with soft water.

Product description

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3.2 Product components

Item

Description

Item

Description

1

Connection block

2

Shut-off valve for raw water

3

Blending valve

4

Locking screw

5

Shut-off valve for soft water

6

Control (display)

7

Brine tank lid

8

Salt supply display sensor*

9

Illuminated LED ring*

10

Cover for connections (customer interface)*

11

Water connection pipes

12

Housing of technical equipment, upper part

13

Housing of technical equipment, lower part

14

Brine tank

15

Brine valve

16

Sieve bottom

17

Exchanger tank

18

Control valve

19

Water test kit "total hardness“

20

Water sensor*

* Not with softliQ:SD18

Product description

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3.3 Functional description

3.3.1 Ion exchange process

The softliQ water softener works according to the ion exchange process. The exchange of
calcium and magnesium ions for sodium ions causes the water to become soft.

Figure

Explanation

The exchanger contains ion exchanger resin in the form of small
resin beads.

Sodium ions adhere to each resin bead.

Hard water containing lots of calcium and magnesium ions flows through
the exchanger.

The ion exchanger resin absorbs calcium and magnesium ions from the
water in exchange for sodium ions.

This reaction is called ion exchange.
The calcium and magnesium ions are retained in the exchanger.
Soft water without calcium and magnesium ions, but containing sodium

ions, leaves the exchanger.
This process continues until no more sodium ions are available. The ion

exchanger resin is exhausted.

The exchange can be reversed if a large amount of sodium ions is added.
The exchanger is rinsed with brine (water containing salt).
By their sheer number, sodium ions displace calcium and magnesium

ions on the ion exchanger resin.
This water containing calcium and magnesium ions is discharged to

the drain.
The initial condition is restored.
The ion exchanger resin is regenerated, and thus ready for operation.

Sodium ion Calcium ion Magnesium ion

Your dishwasher works according to the ion exchange process, too.

Product description

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3.3.2 Intelligence of the water softener softliQ:SD

Based on the consumption values of the past 4 weeks, the system capacity is automatically
adjusted to the individual water consumption of the owner / user. SoftliQ water softeners
offer several selection options (= modes of operation). The factory setting is Comfort. In case
of considerable fluctuations in the water consumption, however, it is possible to switch to the
Power mode in the Settings. With low water consumption, Eco offers an energy and
resource-saving option.
The currently setting is displayed in Information menu 1.

A regeneration is triggered daily, if at least 50 % of the current system capacity is used up.
The point of regeneration automatically is placed in a time period where usually no water is
consumed. The point of regeneration can also be set at a fixed time. Should water be
required during the regeneration process, non-softened water is available.

During each regeneration, only the used-up system capacity is regenerated. and only as
much salt is used as necessary. No later than after 4 days without regeneration, the system
releases a complete regeneration, as required by DIN standard 19636-100, for hygienic
reasons.

The intelligence of the softliQ water softener allows for an efficient operation at the lowest
salt and power consumption possible.

3.4 Function

The water softener softliQ:SD offers 5 selections:

● Comfort (factory-setting)

Optimum use of resources and system output.

● Eco

Minimum use of resources in case of normal consumption.

● Power

Maximum performance for highest demands.

● Individual

To enter your individual user profile.

● Fix

To enter a permanently fixed capacity figure without looking at the past and
adjusting the capacity figure.

Product description

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3.5 Additional equipment softliQ:SD21 and softliQ:SD23

3.5.1 Salt supply display

Once per regeneration, a light sensor briefly checks the filling level of the regeneration salt.
If the filling level is below the minimum, the control unit provides feedback in the form of a
warning message. This is shown by a yellow symbol in the control unit. The control unit of
the softliQ:SD21 and softliQ:SD23 calculates how many days the salt supply is expected to
last, and shows this value in days in the warning message.

The days the salt supply is expected to last are calculated based on the water consumption
of the past days. In case of fluctuating water consumption, the indicated range of the salt
supply also fluctuates.

3.5.2 Illuminated LED ring

The illuminated LED ring is used as a visual signal in water treatment, operation and fault. In
the standard setting, the illuminated LED ring behaves as follows:

● Is illuminated during water treatment

● Is illuminated during operation of the control unit

● Intermittent flashing in case malfunctions do occur

● Intermittent flashing in case of pre-alarm salt supply

The illuminated LED ring can be set to continuous illumination or be deactivated completely
(refer to chapter 6.2).

3.5.3 Water sensor

The water sensor detects water at the installation location of the softliQ, provides
information via the softliQ control or the Grünbeck myProduct app, and triggers an
audio signal (if activated).

3.6 Product registration

You have the following options to register your product:

● Registration on Grünbeck's website (www.gruenbeck.com).

● Registration using the Grünbeck myProduct app (refer to chapter 6.3).

● Registration via the enclosed postcard.

Registration extends your warranty by 1 year.

Product description

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3.7 Accessories

You can retrofit accessories to your product. Please contact your local Grünbeck representative
or Grünbeck’s headquarters in Hoechstaedt for details.

Image

Product

Order no.

Dosing computer EXADOS EK 6

115 100

Dosing computer EXADOS ES 6

115 200

Electronically controlled dosing technology for corrosion protection or to stabilise the total hardness.

Safety device protectliQ:A20

126 400

Product for protection against water damage in one- and two-family homes.
For other sizes, please inquire.

Regeneration water delivery pump

188 800

To discharge the regeneration water into drain pipes located at a higher level.
Only suitable for softliQ:SD23 and softliQ:MD.

Drain connection DN 50

188 875

For professional installation acc. to DIN EN 1717.
Included in scope of supply of softliQ:SD23.

Extension kit for connection hoses

187 860e

To extend the hose to 1.6 m.

Product description

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Image

Product

Order no.

Supplementary blending valve

187 870

To generate a second blending hardness (e.g. separate pipe to the kitchen, technical applications, etc.).

Additional soft water outlet

187 875

To easily branch off a 0 °dH (0 °f, 0 mol/m³) pipe (e.g. for a separate pipe for technical applications, etc.).

Hall cable with clip and pulse division
softliQ-EXADOS GSX, VGX

119 645

Hall cable with clip and pulse division
softliQ-EXADOS VFR, VGR

119 642

For connecting to an EXADOS dosing computer provided by the client.

softliQ insulation set

188 870

For professional insulation of the connection equipment.
Included in scope of supply of softliQ:SD23.

Product description

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3.8 Inputs and outputs of the control unit

The control unit features voltage-free inputs and outputs. The functions are described in
chapter 6.9.

3.8.1 Data circuit board (only with softliQ:SD21 and softliQ:SD23)

Item

Description

Item

Description

1

LAN connection

2

iQ-Comfort 1
(for networking Grünbeck products)

3

iQ-Comfort 2
(for networking Grünbeck products)

4

Water sensor (digital input)

If another function is required for the digital input, the water sensor must be disconnected.
Cables LiYY 2x0.5 mm² or comparable should be used as connecting line. A larger line

cross-section is unsuitable.

Water sensor pin assignment (digital input):

● Terminal top + terminal middle = water sensor

● Terminal bottom + terminal middle = regeneration triggering or regeneration lock

No voltage signals are allowed to be applied to any of the 3 terminals.

Product description

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3.8.2 Power circuit board (only with softliQ:SD23)

WARNING: Fatal shock hazard.

● Contact with live parts may result in injury.
► Make sure that the product is in a voltage-free state (pull out the mains plug)

before removing the protection against accidental contact.

The power circuit board is located under the protection against accidental contact.

1. Remove the protection against accidental contact to access the power circuit board.

Item

Description

Item

Description

1

Protection against contact

2

Fault signal contact (upper two terminals)
max. 230 V/max. 1 A
(factory setting N.C.)

3

Programmable output (lower two terminals)
e.g. connection of the regeneration water
delivery pump
max. 230 V/max. 1 A
(factory setting regeneration water delivery pump)

2. Use the following connection cables for connection to the fault alarm contact or
the programmable output:

● Flexible cables of quality H05xx F 2x0.75 mm² or comparable, because consumers
operated with mains voltage may be connected. A larger line cross-section is
unsuitable.

3. After the connection has been made, attach the protection against accidental
contact.

Installation

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4 Installation

The installation of a water softener represents a major intervention into the drinking water
system and only a specialist installer should install these systems.

Item

Description

Item

Description

1

Safety device protectliQ

2

Drinking water filter pureliQ:KD

3

Garden water pipe

4

Water withdrawal point

5

EXADOS dosing computer

6

softliQ insulation set

7

Drain connection DN 50 acc. to DIN EN 1717

The connection block can be installed horizontally or vertically in the drinking water system.
No dosing can be connected in a vertical installation.

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.

● If the softened water is intended for human consumption in the sense of
the German Drinking Water Ordinance, the ambient temperature must not
exceed 25 °C. For applications that are purely technical, the ambient temperature
must not exceed 40 °C.

● Always install a drinking water filter and, if required, a pressure reducer (e.g. fine
filter pureliQ:KD) upstream of the product.

● A shock-proof socket is required within a distance of approx. 1.2 m of the system.
The socket requires a permanent power supply and must not be connected to light
switches, emergency heating switches or similar devices.

● A drain connection (DN 50) must be available to discharge the regeneration water.

● There must be a water withdrawal point near the product.

● 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.

● Ensure that lifting systems are resistant to salt water or use our regeneration water
delivery pump (refer to chapter 3.7).

Installation

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4.2 Check the scope of supply

Item

Description

Item

Description

1

Water softener completely pre-assembled

2

2 Connection hoses

3

Water test kit "total hardness“

4

Operation manual

5

Connection block incl.

- 2 inserts

- 2 union nuts

- 2 gaskets

► Check the scope of supply for completeness and damage.

Installation

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4.3 Installing the product

WARNING: Danger of contaminated drinking water due to stagnation.

● Risk of infectious diseases.
► In accordance with VDI 6023, do not connect the product to the drinking water

installation until directly before start-up.

► Only open the two valves on the connection block during start-up.
► Only carry out the leakage test during start-up.

4.3.1 Installing connection block

1. Install the water meter screw connection into the pipe.

2. Check the flow direction given on site.

The direction of flow is indicated by an arrow on the connection block.

3. Make sure that the strainer insert is inserted on the inlet side.

4. Mount the connection block by tightening the union nuts without applying tension.

» The connection block is installed.

Installation

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4.3.2 Installing the connection hoses

1. Unscrew both the screws at the side on the upper part of the housing for technical

equipment.

2. Remove the upper part of the housing for technical equipment.

3. Observe the flow direction indicated by arrows on the connection block and on the

control valve.

4. Mount the connection hoses with a suitable tool.

Installation

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4.3.3 Establish waste water connection as per DIN EN 1717

The duct connection facilitates DIN-compliant connection (refer to chapter 3.7).

NOTE: Waste water backing up due to kinked hoses.

● Risk of water damage.
► Run the hoses to the drain with a downward slope and without kinks and bends.

1. Shorten the flushing water hose (diameter 12 mm) to the required length.

2. Fasten the flushing water hose (regeneration water flows out under pressure).

3. Shorten the overflow hose (diameter 16 mm) to the required length.

4. Run the overflow hose to the drain with a downward slope.

5. Make sure there is a free outlet to the drain in accordance with the standard.

6. Fasten the overflow hose.

If the flow pressure is at least 3 bar, the flushing water hose can be routed up
to 2 m above the floor. It is then not possible to connect the overflow hose.

» This completes the installation.

Protect the product from contamination until it is started up.

► Slide the protective sleeve from the packaging over the product.

Start-up

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5 Start-up

5.1 How to start up the product

The start-up program assists you with starting up the softliQ water softener. You are guided
through the start-up procedure step-by-step on the touchscreen display.

Start-up is not fully automatic.

► Follow the instructions on the touchscreen display (see chapter 6).

● Use the  or  buttons to navigate through the program.

● Press  to go to the previous menu level.

● With ✔, you confirm the selection and move to the next menu level.

5.1.1 Initial start-up and automatic start of the start-up program

1. Keep salt tablets (refer to chapter 2.6) ready.

2. Plug in the mains plug.

3. Select the desired language – touch the corresponding flag.

4. Select the continent where the system is installed.

5. Select the required hardness unit – if known.

6. Select Start-up START.



» The start-up program starts.

Start-up

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5.1.2 Program flow of the start-up program



1. Check the correct system connection.

2. Select the drain connection used.



3. Check whether the lines to the drain connection have been laid with a gradient.

4. Place the water sensor flat on the floor.



5. Fill salt tablets into the brine tank (refer to chapter 6.3) – do not fill in water.

Start-up

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

6. Set the time and date.



7. Determine the raw water hardness.

a Contact your water supply company and ask them what the value is or
b Measure the value using the supplied water test kit (refer to chapter 6.6).

8. Type in the value for the raw water hardness.

You can change the value at a later time (refer to chapter 6.6).

» After the set value has been confirmed, the automatic positioning of the control

valve starts.

Item

Description

Item

Description

1

Shut-off valve for raw water

2

Blending valve

3

Locking screw (Torx 20 required)

4

Shut-off valve for soft water

5

Dosing connection option

Start-up

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

9. Open the raw water shut-off valve.

10. Open the soft water shut-off valve.

Water flows through the flushing water hose to the drain. This is normal
during start-up.



11. Start the ventilation program.

» There is an automatic sequence of 9 program steps.

» This is followed by a 5-step functional check.

Start-up

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12. Adjust the blending valve as follows.



a Loosen the locking screw on the blending valve.
b Close the blending valve completely (turn to the right).



13. Remove cold water at the water draw-off point.

14. Measure the soft water hardness (refer to chapter 6.6).

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

15. Move the blending valve to the middle position.

16. Open the water draw-off point completely (let the water run).



17. Remove cold water and measure the soft water hardness.



18. Set the soft water hardness using the blending valve.

Turning to the right (-) reduces the soft water hardness, turning to the left (+)
increases it.

Exception for Austria: In Austria, soft and water must have a soft water
hardness of min. 8.4 °dH.

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

19. Observe the max. sodium concentration (refer to chapter 12.1).

20. Fix the locking screw.



21. Type the set soft water hardness into the display.

22. Close the water withdrawal point.

23. Look and check the connection points for leaks.

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

24. Start the test regeneration.

The test regeneration lasts approx. 12 minutes.

► Let the test regeneration run.

» The start-up program is finished.

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► Check that the water sensor is lying flat on the floor.

► Fill in the start-up log (refer to chapter 13).

» This completes the start-up.

5.1.3 Manual start of the start-up program

Menu level>Start-up

► Press and hold for 2 seconds.

► Follow the instructions on the display.

The sequence of the steps is analogous to the automatic start-up-program.

The start-up program cannot be started while a regeneration is running.

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5.2 Handing over the product to the owner / user

► Explain to the owner / user how the water softener works.

► Use the manual to brief the owner / user, and answer any questions.

► Inform the owner / user about the need for inspections and maintenance.

► Inform the owner-user about the influence of water hardness on the dosage rate

of detergents and cleaning agents.

► Hand over all documents to the owner / user for storage.

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6 Operation

NOTE: The valves of the system are operated electrically.

● Water can flow to the drain if there is a power failure during regeneration.
► If there is a power failure, check your product and shut off the water supply,

if necessary.

6.1 Touch display

6.1.1 Basic display

The touch display is switched off by default.

● It is activated by tapping on the touch display.

● After a 2-minute pause, the control unit returns to the basic display – the touchscreen

display switches off.

» Parameters that have not been saved are discarded.

Item

Description

Item

Description

1

Menu level (always displayed)

2

Work area / information display
(changing symbols)

3

Operating elements (changing symbols)

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6.1.2 Menu level

To access a menu, tap the corresponding button. The selected button is displayed in yellow.
In the menus, you can start actions or change settings.

Figure

Explanation

Information

This menu offers useful information on the water softener.

Manual regeneration

In this menu, you can manually start a regeneration. (refer to chapter 6.5).

Settings

In this menu, you can adapt your water softener individually (refer to
chapter 6.2).

Water hardness

You can enter the current values in this menu (refer to chapter 6.6).

Start-up

In this menu, you can start the automatic start-up program (refer to
chapter 5.1).

6.1.3 Information display

Figure

Explanation

Blue symbol

The water softener is working properly.
The system capacity declines from the top downwards between
2 regenerations. One bar corresponds to 20 %. The bright bars
indicate the available system capacity (= soft water volume still
available).

Grey symbol

The water softener is working properly. The water softener
regenerates. The bars correspond to the following regeneration
steps from the bottom upwards:

• Filling brine tank (lowest bar)

• Salting

• Slow rinse

• Backwash

• Washing out (uppermost bar)

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Figure

Explanation

Current flow rate

The current flow rate is displayed as a numerical value and in the
form of a "tachometer" (blue-coloured circle segments). If the
nominal flow of the system is exceeded, the circular segments
appear in red.

Function

The selected mode of operation appears in a green circle segment.

Perform maintenance

since … days

Yellow symbol

Maintenance due!
Notify Grünbeck's technical service / authorised service company.

Leak at the

softliQ installation location

Yellow symbol (not with softliQ:SD18)

Check system location (detection via water sensor) for water
leakage and close main valve of domestic water installation if
necessary.

… days

Yellow symbol (not with softliQ:SD18)

The supply of regeneration salt is running low. The expected time
for the salt to last in days is displayed. Refill salt tablets.

Red symbol

The water softener is not working properly.

1. Refill salt tablets.

2. Wait for 10 minutes.

3. Start a manual regeneration (refer to chapter 6.3).

Red symbol

The water softener is not working properly. There is a fault (refer to
chapter 8).

Wi-Fi symbol

This is displayed when there is a Wi-Fi connection with a router.

LAN symbol

This is displayed when there is a LAN connection established with
a router.

Cloud symbol

Displayed when the connection to the Grünbeck Cloud is
established.

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6.1.4 Operating elements

Button

Description

Return to the basic display

 and 

Scroll through the menu level

 and 

Mark a selection, scroll to the menu items, select settings



Return to the previous menu level, cancel unwanted actions

✔

Confirm display messages and save settings

Buttons that currently have no function are displayed in light green.

To change a value or content, touch the corresponding field.
The field becomes white and can be changed.

In some extensive menus, functionally related parameters are grouped together onto tabs
under the header. Tap the tab to open the corresponding page. If necessary, you can switch
between the tabs with the < or > buttons.

6.2 Menu structure

Values that can be selected or changed are shown in italics.

Menu

Menu items

Values / settings

Information

Basic display

Refer to chapter 6.1.1.

System data

Flow rate
Raw water hardness
Capacity figure

Counter readings, date
and time

Regeneration
Soft water volume
Perform maintenance in xx days

(if activated)
Date and time (display)

Installer contact details

Name
Tel. no.
Email

Technical service
The technical service menu is reserved for

Grünbeck's technical service / authorised
service company and specialist installers
trained by Grünbeck, and is protected by
a code.

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Menu

Menu items

Values / settings

Manual
regeneration

Press and hold button
for 2 seconds to start.

Settings

Language

German
English
French
Spanish
Dutch

Danish
Italian
Russian (planned)
Chinese (planned)
Taiwanese (planned)

Hardness unit

°dH
°f
mol/m³

ppm
°e

Date, time, time synchronisation

Date, time

Current time
Current date

Current continent
Current time zone

Time synchronisation

Sw.-over DST to ST
NTP synchronisation
URL NTP server

Cloud connection, Wi-Fi / LAN connection, network status

Cloud connection

Allow connection to Grünbeck Cloud
Linking with Grünbeck Cloud user account
URL Cloud
URL certificate

Wi-Fi / LAN connection

Network type router connection
Automatic IP address (DHCP)
Automatic WLAN connection (WPS)
Wi-Fi search
Found Wi-Fi networks
Wi-Fi password

Network status

Parameter, value (display only)

Regeneration time

Automatic

Fixed

Function

Eco
Comfort
Power

Individual
Fixed

Display, audio signal, illuminated LED ring

Display -
Display in standby

Deactivated

Activated

Audio signal – behaviour
in case of malfunctions

Deactivated

Activated

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Menu

Menu items

Values / settings

Audio signal release
from … to …

Illuminated LED ring –
function setting
(SD21 and SD23)

Water treatment + operation + malfunction
Operation + malfunction
Malfunction
Permanent light
Deactivated

Illuminated LED ring –
Illuminated LED ring
flashes on signal

Deactivated

Activated

Illuminated LED ring
Brightness

…%

Updates and profiles, manual update

Software update

Automatic

Manual

Save settings profile

no / yes
The parameter settings are saved here as a
"Private" profile in the Grünbeck Cloud.

Load settings profile

Private profile

Installer profile

Load history stored in
Cloud

Start

Manual update

Software update
Press and hold button
for 2 seconds to check for updates.

Reset factory settings

Start

Device info

Software version / hardware version / serial
number control unit / maintenance interval [d]

Water hardness

Setting the water
hardness

Press and hold button
for 2 seconds to start.

Raw water / soft water

Start-up

Start-up
Press and hold button
for 2 seconds to start.

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6.3 Connection to Grünbeck Cloud

It is possible to control your softliQ water softener via a mobile device and to request
information.

To do this, the Grünbeck myProduct app must be installed on your mobile device.
The connection between your water softener and the mobile device does not work directly,

but via the Grünbeck Cloud.

The connection between the Grünbeck myProduct app and the softliQ control system is
made in the following way:

Item

Designation

Item

Designation

1

Grünbeck product

2

Router

3

Grünbeck Cloud

4

Mobile device

The following steps are necessary:

● Install Grünbeck myProduct app on a mobile device

● Allow Grünbeck Cloud connection in the control unit

● Connect softliQ to router via LAN or Wi-Fi

● Setting up a user account in the Grünbeck Cloud

As soon as a user account has been created via the Grünbeck myProduct app and the
anonymous data is linked to your user account, the data is personalised as defined by the
Data Protection Act.

6.3.1 Installing Grünbeck myProduct app

The Grünbeck myProduct app is the link between your Grünbeck product and your
mobile device. You can access your Grünbeck product anywhere.

► Download the Grünbeck myProduct app and install it on your mobile device.

► Create your personal user account.

The Grünbeck myProduct app supports iOS from version 10.3 onwards and Android
starting from version 5.1. Refer to the instructions of your mobile device for information
about installing an app.

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You can register your product conveniently using the Grünbeck myProduct app.

► Call up Registration and Product registration in the device overview of the

Grünbeck myProduct app.

► Enter your personal data.
» Registration extends your warranty by 1 year.

6.3.2 Allow connection to Grünbeck Cloud

Menu level>Settings>Cloud connection.

1. Select Connection to the Grünbeck Cloud.

» Here you can read the privacy policy.

2. Activate the Allow+accept checkbox.

3. Confirm with ✔.

The URL Cloud parameter must never be changed unless you are
instructed to do so, otherwise the softliQ control unit cannot connect to the
Grünbeck Cloud.

» The symbol appears in the basic display as soon as the connection to the

Grünbeck Cloud is established.

The following parameters are used for information or adaptation in case of network problems:

Menu items

Settings / remarks

IP address

Normally assigned automatically by the router (= DHCP
server).

Can be changed manually, must be different from the
other IP addresses already on the network. Must be set
in the router to assign this IP address to the softliQ
control unit.

Subnet mask

Only editable when working with a fixed IP address.

Default gateway

(indication only)

Data is assigned by the router.

Primary DNS

(indication only)

Data is assigned by the router.

Secondary DNS

(indication only)

Data is assigned by the router.

Status

(indication only)

Connected / not connected

MAC address LAN

(indication only)

MAC address of the network interface of the softliQ
control unit.

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After the connection to the cloud is allowed and the connection to the router is established,
the control unit automatically checks whether a new firmware update is available on
the Cloud. This means that the latest security features and functions are always available.

► Do not disconnect the power while a firmware download and processing are in

progress (max. 20 minutes).

6.3.3 Establishing connection with router

Connect via LAN (only possible with softliQ:SD21 and SD23)

You need an Ethernet patch cable that is not included in the scope of delivery.

1. Unscrew both the screws at the side on the upper part of the housing for technical

equipment.

2. Remove the upper part of the housing for technical equipment.

3. Open the back cover.

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4. Lead the Ethernet patch cable from below to the data interface board.

5. Plug the cable into the LAN connection (refer to chapter 3.8).

6. Create a strain relief by forming a loop.

7. Attach the upper part of the housing of the technical equipment.

The Ethernet patch cable is routed out of the housing with the connection hoses.

8. Fasten the upper part of the housing of technical equipment on the side with
the screws.

9. Plug the Ethernet patch cable into the LAN connector of your router.

Menu level>Settings>Wi-Fi/LAN connection

10. Select Network type router connection.

11. Select LAN.

12. Leave the checkbox activated when using DHCP

(should only be changed by an expert).

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The parameters Automatic Wi-Fi connection (WPS) and Wi-Fi search are
irrelevant for the LAN connection.

» The symbol appears in the basic display as soon as the LAN connection to

the router is established.

Connecting via Wi-Fi

Menu level>Settings>Wi-Fi/LAN connection

1. Select Network type router connection.

2. Select Wi-Fi.

3. Leave the checkbox activated when using DHCP

(should only be changed by an expert).

with WPS function

1. Start the WPS function on your router by holding down the corresponding button

for a few seconds.

2. Select Start on the control unit at Auto Wi-Fi connection.
» The Wi-Fi connection is established within approx. 2 minutes.

without WPS function

1. Select Start on the control unit at Wi-Fi search.
» After a few seconds, the max. 10 Wi-Fi networks with the best receivable signal

quality appear.

2. Select your Wi-Fi router from this list.

3. Confirm with ✔.

4. Enter your Wi-Fi password.

» The symbol appears in the basic display as soon as the Wi-Fi connection to

the router is established.

As soon as the connection to the Grünbeck Cloud is allowed and a connection to the router
is established, the control unit cyclically sends anonymous data to the Grünbeck Cloud.

6.3.4 Linking with Grünbeck Cloud user account

1. Add your softliQ to your user account in the Grünbeck myProduct app with +.

a Scan the data matrix code on the type plate.
b Alternatively, enter the serial number.

2. Give your softliQ a device name.

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Menu level>Settings>Cloud connection>Grünbeck Cloud-user account

connection

3. Tap Pair.

4. Press and hold the button in the app for 2 seconds.

» Your mobile device and your softliQ are now paired.

Further information on the Grünbeck Cloud and the Grünbeck myProduct app can be found
on the Internet at the following address:

https://www.gruenbeck.de/en/become-a-water-expert/faq/

6.4 Refilling salt tablets

The level of salt tablets in the brine tank must always be higher than the water level.
The water level is normally approx. 1 cm above the sieve bottom.

1. Open the brine tank lid.

The brine tank lid on the softliQ:SD21 and softliQ:SD23 contains the sensor
for the salt supply display. This sensor does not work with laser light, so it is
safe for the eyes. The function of the salt supply display is explained in
chapter 3.5.

2. Fill in salt tablets.

3. Dispose of the dust-like fine fraction from the bag in the residual waste.

4. Close the brine tank lid.

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6.5 Starting a manual regeneration

Menu level>Manual regeneration

A manual regeneration is necessary in the following cases:

● The product resumes operation after a longer period of standstill.

● After maintenance and repair work has been performed.

● After a longer power failure.

Manual regenerations are always complete regenerations with maximum capacity figure.

6.6 Determining and entering the water hardness

The water test kit is designed for the determination of the water hardness in °dH or in °f.
The unit mol/m³ (= mmol/l) can be converted from °f.

Item

Description

Item

Description

1

Test tube

2

Titration solution

6.6.1 Taking a water sample

Open the water withdrawal point for cold water fully. A flow rate between 400 l/h and
600 l/h must be attained in order to produce a correct result. You can read the flow rate on
the touch-screen display.

1. Open a water withdrawal point for cold water.

a In order to take a raw water sample, use a water withdrawal point for cold water

upstream of the water softener.

b In order to take a soft water sample, use a water withdrawal point for cold water

downstream of the water softener.

2. Let the water flow for at least 30 seconds.

3. Take a water sample with the test tube:

a Fill the test tube up to the °dH mark to determine the water hardness in °dH.

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b Fill the test tube up to the marking °f (x 0.1 = mol/m³) in order to determine the

water hardness in °f, mol/m³ or mmol/l.

6.6.2 Determining the water hardness in °dH/°f

1. Add one drop of titration solution (1 drop = 1 °dH = 1 °f).

2. Shake the test tube until the titration solution is mixed with the water.

3. In case of red colouring, repeat steps 1 and 2 and count the drops until the colour

changes to green.

» If the colour changes from red to green, the water hardness has been determined.

The number of drops corresponds to the degree of hardness in °dH or °f.
Example:

• Test tube filled up to the °dH mark: 6 drops = 6 °dH

• Test tube filled up to the °f mark: 6 drops = 6 °f

6.6.3 Determining the water hardness in mol/m³ (mmol/l)

1. Determine the water hardness in °f as described.

2. Divide the value in °f by 10.

The water hardness in °f divided by 10 corresponds to the degree of
hardness in mol/m³ (= mmol/l).
Example:

• 6 drops = 6 °f = 0.6 mol/m³ = 0.6 mmol/l

» You get the water hardness in mol/m³.

6.6.4 Entering the water hardness

Menu level>Water hardness

1. Press and hold for 2 seconds.

2. Touch the raw water hardness.

3. Enter the value of the raw water hardness.

4. Confirm with ✔.

The maximum soft water hardness that can be set is approx. 50 % of the raw
water hardness present.

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6.7 Select regeneration time

Menu level>Settings>Regeneration time

1. Use ▲ and ▼ to select the desired function.

2. Confirm with ✔.

6.7.1 Setting the time of the fixed regeneration

Select a time at which you have no water consumption for > 1 h, e.g. at 02:00 at night.

1. Select the Regeneration time.

2. Enter the time.

3. Confirm with ✔.

6.8 Set the blending valve

The blending valve may only be set with running water (approx. 400 – 600 l/h, which is
about the flow rate of a fully opened water tap).

Recommended soft water hardness: 3 – 6 °dH (5…11 °f)

1. Measure the raw water hardness (refer to chapter 6.6).

2. Move the blending valve to the middle position.

3. Measure the soft water hardness (refer to chapter 6.6).

4. Set the soft water hardness to the required value as follows:

► Turn the blending valve to the right – reduce the soft water hardness.
► Turn the blending valve to the left – increase the soft water hardness.

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5. Enter the set value in the control unit.
Menu level>Water hardness

The value is available in the Grünbeck myProduct app.

6.9 Installer level (code 005)

The settings described here may only be made by Grünbeck's technical service /
authorised service company.

Menu level>Information>Installer contact data

1. Touch the button .

2. Enter the code using the numerical keypad.

3. Confirm with ✔

» You can change the parameters and values.

The following parameters and values can be changed:

Menu items

Settings / remarks

Wi-Fi access point*
Page 1/2

Activate / deactivate

Page 2/2

IP address / SSID / password

Exchanger tank

Page 1/2

Flow [l/h]

Capacity figure [m³ x °dH]

Remaining capacity [m³]

Regeneration step

Page 2/2

Regeneration flow rate [l/h]

Last regeneration [date/time]

Above xxx [%]

Flow rates

(indication only)
Peak flow value [m³/h]

for xxxxx [min.]

Water volumes

(indication only)
Soft water [m3]

Make-up volume [l]

Counter readings

(indication only)
Salt consumption [kg]

Regeneration counter

Find reference position

start

Move to reference position.
Ongoing regenerations are
cancelled. After completion,
the factory setting is activated
again.

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Menu items

Settings / remarks

Fill operating water volume
into brine tank

Start

Fill the brine tank to a
minimum water level (e.g.
after cleaning the brine tank).
After completion, the factory
setting is activated again.

Start test regeneration

Start

Functional check of all
components involved in the
regeneration.

Time of regeneration

Automatic
(factory setting)

Fixed

Programming a fixed
regeneration time.
Regeneration only takes
place, if required.

Weekly timer

Mon ... Sun
Time of the regeneration on
each day of the week –
factory setting:
Mon - Fri 7:00 am

Save settings profile

none
(factory setting)

yes

Save all current parameter
settings of the control unit in
the Grünbeck Cloud so that
you can load them back into
the control unit later if
necessary.

The parameter settings are
saved here as an "Installer"
profile in the Grünbeck Cloud.

Generate system data
overview*

start

When there is a connection
to the access point, all
parameter settings can be
loaded into the smartphone
and a *.pdf document
generated.

* Function planned

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The following menu items are only available for softliQ:SD21 and softliQ:SD23:

Menu items

Settings / remarks

Inputs and
outputs

Programmable
output function*

Regeneration water delivery pump – factory
setting
This setting must be made in connection with the
regeneration water delivery pump available as
an accessory (refer to chapter 3.7).
Contact closed (regeneration water delivery
pump running) during the regeneration steps of
first filtrate, salting, displacement and backwash.

Regeneration message
Contact closed during the entire regeneration.

Function fault
signal contact*

N. C. – factory setting
Contact closed if mains voltage is applied and

there is no fault.

N. O.
Contact closed in the event of a malfunction.

Programmable
input function

Leakage detection – factory setting
If a leakage is detected at the installation site of

the softliQ system via the water sensor,
the message "Leakage at the softliQ installation
site" is displayed.

Regeneration lock
The regeneration lock is active as long as the

contact at the programmable input is closed;
manually released and automatic regenerations
after a power failure take priority. A regeneration
that has already been started is not cancelled.

Release of regeneration
Start of a partial regeneration if the contact at the

programmable input closes.

* Only with softliQ:SD23

6.10 Sending an email if there is a malfunction

If your softliQ water softener is connected to your user account in the Grünbeck Cloud, you
will be notified by e-mail in the event of a fault.

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7 Cleaning, inspection, maintenance

WARNING: Risk of contaminated drinking water if the work is not carried out properly.

● Risk of infectious diseases.
► Pay attention to hygiene when working on the product.

Inspection and maintenance of a water softener is prescribed in the DIN EN 806-5 standard.
Regular maintenance ensures trouble-free, hygienic operation. At least once a year, the
water softener must be serviced by Grünbeck's technical service / authorised service
company or by specialist installers trained by Grünbeck.

A maintenance contract ensures that all the required maintenance work will be performed
in due time.

► Only use genuine spare and wearing parts from Grünbeck.

7.1 Cleaning

► Only clean the outside of the product.

► Do not use any strong or abrasive cleaning agents.

► Wipe the housing with a damp cloth.

The salt tank is cleaned once a year by the specialist installer during maintenance work.

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7.2 Inspection

Regular inspection increases the operational reliability of your product.

► Conduct an inspection at least every 2 months.

To conduct an inspection, proceed as follows:

1. Check the soft water hardness (refer to chapter 6.6).

2. Check that there are sufficient salt tablets in the brine tank.

The level of salt tablets in the brine tank must always be higher than the
water level. The water level is normally approx. 1 cm above the sieve bottom.

3. Check the leak-tightness of the connection hoses.

4. Check the control valve to the drain for leaks.

No water is allowed to drip out of the flushing water hose during operation.
The water softener is in operation when the blue symbol is displayed in
information level 1 (refer to chapter 6.1).

7.3 Intervals

For this purpose, DIN EN 806-5 recommends a semi-annual and an annual maintenance.

Operation

Interval

Execution

Inspection

2 months

Visual inspection for function, leakage

Maintenance

6 months

Visual / functional check, leakage test, check salt condition
and quantity, assess consumption, soft check soft water
hardness, check water sensor function

Annually

Semi-annual maintenance + check operating values, read
counter readings, clean components, check wearing parts

Maintenance

5 years

Recommended: Replacement of wearing parts

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7.4 Maintenance

7.4.1 Semi-annual maintenance

In order to carry out the semi-annual maintenance, proceed as follows:

1. Check the soft water hardness (refer to chapter 6.6).

2. Check that there are sufficient salt tablets in the brine tank.

The level of salt tablets in the brine tank must always be higher than the
water level. The water level is normally approx. 1 cm above the sieve bottom.

3. Evaluate the salt consumption subject to the water volume consumed.

4. Check the salt condition (salt must not be lumpy).

Break up incrustations with a suitable tool.

5. Check the function of the water sensor by immersing the water sensor in water or

alternatively bridge it with a metallic object.

» The water sensor is working if the water softener issues a warning message after

30 seconds at the latest.

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7.4.2 Annual maintenance

Carrying out annual maintenance work requires specialist knowledge. This maintenance
work may only be performed by Grünbeck's technical service / authorised service company
or by specialist installers trained by Grünbeck.

The following points are included in addition to the six-monthly maintenance:

Operating values

1. Measure the raw water hardness.

2. Match the measured raw water hardness to the setting in the control unit.

3. Measure the soft water hardness.

4. If necessary, adjust the blending valve and check the soft water hardness.

5. Read off the water and flow pressure.

6. Read off the residential water meter reading.

7. Read off the regeneration counter.

8. Read off the soft water volume meter.

9. Read out the error memory.

Maintenance work

10. Check the hose connections for leaks and damage.

11. Check the soft water meter for pulse emission (current flow during operation, refer

to chapter 6.1).

12. Check all cables and connections for damage and a firm seat.

13. Check the injector and injector sieve for dirt and clean them if necessary.

14. Check the brine filling orifice in the brine connection angle (red).

15. Check the brine valve and the level electrodes and clean them if necessary.

16. Clean the brine tank.

17. Start a manual regeneration.

18. Check the suction power of the injector.

19. Check the chlorine current when salting.

20. Check the function of the regeneration counter during backwashing by observing

the code-protected level 005.

21. Check the control valve at the drain outlet in the operating position for leaks
(flushing water, filling and suction hose).

22. Check the filling and suction hose to the brine valve for leaks.

23. Reset the service interval, if activated.

24. Enter the maintenance in the operation log (refer to chapter 13).

Cleaning, inspection, maintenance

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7.5 Consumables

Product

Order no.

Regeneration salt tablets (25 kg) acc. to DIN EN 973 type A

127 001

Water test kit "Total hardness”

170 187

7.6 Spare parts

For spare parts and consumables please contact your local representative. You can find
these on the Internet at www.gruenbeck.de.

Cleaning, inspection, maintenance

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7.7 Wearing parts

Wearing parts are listed below:

● Control valve: Gaskets, set of discs, injector and chlorine cell.

Item

Designation

Item

Designation

1

Injector (with circlip)

2

Chlorine cell (with circlip)

3

Regeneration disc pair (with flow stabiliser)

● Brine valve: Gaskets and electrodes.

Item

Designation

Item

Designation

1

Seal 2 Electrodes

Malfunction

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8 Malfunction

WARNING: Danger of contaminated drinking water due to stagnation.

● Risk of infectious diseases.
► Have malfunctions remedied immediately.

The water softener softliQ indicates malfunctions on the display. As soon as a fault appears,
the touch-screen display changes to the basic display and remains active until the fault is
rectified.

► If malfunctions cannot be remedied by the instructions given below, contact

Grünbeck's technical service / authorised service company.

► Have your equipment data (refer to chapter 1.7) handy.

8.1 Display messages

1. Acknowledge the display signal with rectify.

2. Watch the display.

3. If the fault occurs again, compare the display message with the following table.

8.1.1 Warning messages (yellow symbols)

Display shows

Explanation

Remedy

Perform maintenance

since … days

Only displayed if
maintenance interval is
activated.

Notify Grünbeck's technical service /
authorised service company.

SD21 and SD23 only:

Leak at the

softliQ installation location

Water sensor has
electrical connection.

Check whether water is leaking.
If necessary, close the main valve of
the house installation.

SD21 and SD23 only:

Salt supply low! Please refill!

Sufficient for: xy days

(order no. 127 001)

Salt supply low.

Refill salt tablets (refer to
chapter 6.3).

Confirm with Rectify.

Malfunction

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8.1.2 Error messages (red symbols)

Display shows

Explanation

Remedy

Power failure > 5 minutes

Only displayed if
detection is activated.

Water softener will
perform a regeneration
as soon as the electrical
power supply returns.

If there is a power
failure, any regeneration
in progress at the time is
stopped and then
continued afterwards.

Check the electrical connection.
Reset the clock of the water softener

if there is a power failure > 3 days
(refer to chapter 6.2).

Start a manual regeneration (refer to
chapter 6.5).

Salt supply used up! Refill

immediately!

(Order no. 127 001)

Cavity under the salt.

Break up incrustations with a
suitable tool.

Salt supply used up.

Refill salt tablets (refer to
chapter 6.3).

Confirm with Rectify.

Water pressure too low.

Increase the flow pressure to min.

2.0 bar.

Chlorine cell worn.
Brine filling orifice,

injector, injector sieve or
brine valve clogged.

Notify Grünbeck's technical service /
authorised service company.

Malfunction at the drive

to the regeneration control valve!

Step monitoring of
regeneration motor or
connecting cable
defective.

Notify Grünbeck's technical service /
authorised service company.

Regeneration water meter

Quantity not reached!

Regeneration water
meter is not supplying
any pulses.

Connecting cable
defective.

Water supply interrupted.
Safety float on brine

valve closed.

Check the water supply.
Notify Grünbeck's technical service /

authorised service company.

Water meter

soft water defective

Soft water meter is not
emitting any pulses.

Connecting cable
defective.

Water supply interrupted.

Check the water supply.
Notify Grünbeck's technical service /

authorised service company.

Malfunction

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Display shows

Explanation

Remedy

Water meter

regeneration defective

Regeneration water
meter is not supplying
any pulses.

Connecting cable
defective.

Water supply
interrupted.

Check the water supply.
Notify Grünbeck's technical service /

authorised service company.

System does not draw brine

from the brine tank effectively

enough

Minimum contact during
salting not reached.
Monitoring time
exceeded.

Injector clogged or raw
water pressure too low.

Notify Grünbeck's technical service /
authorised service company.

Nominal flow rate

exceeded

Only displayed if
monitoring was
activated by the
specialist installer.

System is being
operated with excessive
flow rates.

Reduce the flow rate.
If the error persists, notify Grünbeck's

technical service / authorised service
company.

Water loss to drain

Water loss to drain.

Notify Grünbeck's technical service /
authorised service company.

Motor output defective

Short-circuit at the motor
or at the connecting
cable to the motor.

Notify Grünbeck's technical service /
authorised service company.

Malfunction

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Fault messages that may occur during start-up

Display shows

Explanation

Remedy

Error during commissioning

(venting)

Time monitoring of the
venting (backwash) has
tripped.
No flow was detected at
the regeneration water
meter.

Check that the shut-off valves on the
connection block are open.

Error during start-up

(fill brine tank)

Time monitoring for
filling the brine tank has
been triggered.

Check whether the raw water shut-off
valve is open.

Confirm with Rectify.
Repeat the start-up.

Error during start-up

(chlorine current too low)

Flow monitoring during
test regeneration has
been triggered.

Fill the brine tank with salt tablets if
you have not already done so.

Confirm with Rectify.
Repeat the start-up.

Error during commissioning

(referencing)

Step monitoring
regeneration motor

or connecting cable
defective.

Confirm with Rectify.
Repeat the start-up.
Notify Grünbeck's technical service /

authorised service company if the
malfunction reoccurs.

Malfunction

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8.2 Other observations

Observation

Meaning

Remedy

No soft water

Excessive water
consumption
(water softener has
exceeded its capacity).

Restrict your water consumption to
the maximum flow rate permitted
(refer to chapter 11).

Start a manual regeneration (refer to
chapter 6.5).

Water softener does not
have a permanent
power connection.

Check the electrical connection.
Soft water meter is not
emitting any pulses.

Notify Grünbeck's technical service /
authorised service company.

Raw water hardness set
too low.

Measure the raw water hardness
(refer to chapter 6.6).

Update the value in the control unit
(refer to chapter 6).

Blending valve
incorrectly set.

Set the blending valve (refer to
chapter 6.8).

Water supply
interrupted.

Check that the shut-off valves on the
connection block are open.

Resin beads in the
flushing water hose or
aerator

Defective jet system.

Notify Grünbeck's technical service /
authorised service company.

Water pressure at the
withdrawal point too
low.

(Pressure loss too
high.)

Resin may be polluted
by undissolved particles.

If the problem comes from the water
softener, contact Grünbeck's
technical service / authorised service
company.

Start-up program: When
venting (steps 1 – 9)
or during test
regeneration, the
display stops for more
than 20 minutes – no
further changes.

Connection hoses are
connected reversed
(raw water and soft
water).

Check the assignment of the
connection hoses (refer to
"Connection hoses").

If necessary, close both shut-off
valves on the connection block, start
manual regeneration, loosen and
exchange hoses on the connection
block and open shut-off valves.

Rattling noise at the
connection block
during water draw-off

Information on faults with the Grünbeck Cloud can be found on the Internet at the following
address: https://www.gruenbeck.de/en/become-a-water-expert/faq/

Shut-down and restart

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9 Shut-down and restart

It is not necessary to put your product out of operation.
Should you do so nevertheless, please take the information given in the present chapter
into consideration.

9.1 Shut-down

In accordance with DIN 19636-100, your water softeners are regenerated after 4 days, even
if the softening capacity has not yet been exhausted by that time. The stagnation of water is
prevented.

► Leave your product connected to electricity and water.

Should you wish to temporarily shut down your water supply due to a longer period of
absence, proceed as follows:

1. Close the soft water shut-off valve.

2. Leave the raw water shut-off valve open.

3. Keep the water softener connected to power.

» The product remains in an operating state which is considered to be safe with

regard to hygiene and which is admissible according to DIN EN 19636-100.

9.2 Restart

In order to put your product back into operation again, proceed as follows:

1. Open the soft water shut-off valve.

2. Open a water draw-off point for approx. 5 minutes.

» The product is ready for operation.

Dismantling and disposal

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10 Dismantling and disposal

10.1 Dismantling

The work described herein represents an intervention into your drinking water system.
Have this work performed by specialist installers only.

1. Close the raw water shut-off valve.

2. Open a water withdrawal point.

3. Wait for a few seconds.

» The pressure in the product and the pipe network is being relieved.

4. Close the water withdrawal point.

5. Disconnect the product from mains.

6. Separate the product from the connection hoses.

Keep a collecting vessel (e.g. a bucket) handy to catch escaping water.

7. Separate the connection hoses from the connection block.

8. Dismantle the connection block.

9. Close the gap in your drinking water installation, e.g. by using an adjusting piece

(e.g. order no. 128 001).

Dismantling and disposal

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10.2 Disposal

► Comply with the applicable national regulations.

10.2.1 Packaging

► Dispose of the packaging in an environmentally sound manner.

10.2.2 Product

If this symbol (crossed out waste bin) is on the product, European Directive 2012/19/EU
applies to this product. This means that this product or the electric and electronic
components are not allowed to be disposed of in the household waste.

► Find out about local regulations on the separate collection of electrical and

electronic products.

► Use the collection points available to you for disposing of your product.

For information on collection points for your product, contact your municipality, the public
waste disposal authority, an authorised body for the disposal of electrical and electronic
products or your waste collection service.

Technical specifications

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11 Technical specifications

Dimensions and weights

softliQ:SD18

softliQ:SD21

softliQ:SD23

A System width

[mm]

360

B System height

[mm]

815

C System depth

[mm]

430

D Connection height of control valve
(soft water)

[mm]

470

E Connection height of control valve
(raw water)

[mm]

510

F Height of safety overflow of brine tank

[mm]

520

G Height with open lid

[mm]

1060

H Installation length without screw connection

[mm]

190

I Installation length with screw connection

[mm]

271

Operating weight, approx.

[kg]

65

69

73

Shipping weight, approx.

[kg]

22

24

26

Technical specifications

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Connection data

softliQ:SD18

softliQ:SD21

softliQ:SD23

Nominal connection diameter

DN 25 (1" male thread)

Min. drain connection. DN 50

Rated voltage range

[V]

100 - 250

Rated frequency

[Hz]

50 - 60

Rated consumption (during regeneration, temporarily)

[W]

8

14

Softening power consumption, if display, Wi-Fi and
illuminated LED ring are switched off
(illuminated LED ring only for softliQ:SD21 and softliQ:SD23)

[W]

< 3.5

Protection / protection class

IP54/

Performance data

softliQ:SD18

softliQ:SD21

softliQ:SD23

Nominal pressure PN 10

Rated pressure

[MPa]/

[bar]

1.0/10

Min. / max. operating pressure (recommended)

[bar]

2.0/8.0 (4.0)

Nominal flow (0 °dH, 0 °f, 0 mol/m³)
acc. to DIN EN 14743 at a pressure loss of 1.0 bar
(theoretical value))

[m³/h]

1.8

2.1

2.3

Nominal flow at a pressure loss of 1.0 bar acc. to
DIN 19636
(raw water hardness 20 °dH (35.6 °f, 3.56 mol/m³),
soft water hardness 8 °dH (14.2 °f, 1.42 mol/m³))

[m³/h]

3.0

3.5

3.8

Nominal capacity variable

[m³ x °dH]

[m³ x °f]

[mol]

6 - 14

11 - 25

1.1 - 2.5

8 - 20

14 - 36

1.4 - 3.6

9 - 23

16 - 41

1.6 - 4.1

Capacity per kg of regeneration salt

[mol/kg]

6.7 - 4.5

7.1 - 4.5

Regeneration time for a complete regeneration

[min.]

20 - 40

Regeneration (1x per day) in case of reduction in capacity

[%]

> 50

Filling volumes and consumption data

softliQ:SD18

softliQ:SD21

softliQ:SD23

Resin volume

[l]

5

7.5

9

Salt consumption per full regeneration

[kg]

0.15 - 0.55

0.20 - 0.80

0.23 - 0.95

Max. capacity of brine tank

[kg]

35

Salt consumption
per m³ and °dH
per m³ and °f
per m³ and mol

[kg/m³ x °dH]

[kg/m³ x °f]

[kg/mol]

0.025 - 0.040

0.014 - 0.022

0.140 - 0.221

Max. flushing water flow

[m³/h]

0.3

0.4

0.6

Total waste water volume per full regeneration

[l]

21 - 31

28 - 43

32 - 51

Waste water volume
per m³ and °dH (complete regeneration)
per m³ and °f (complete regeneration)
per m³ and mol (complete regeneration)

[l/m³ x °dH]

[l/m³ x °f]

[l/mol]

3.5 - 2.2

1.9 - 1.2
19 - 12

General data

softliQ:SD18

softliQ:SD21

softliQ:SD23

Suitable for homes of ... families (up to ... people)

1 - 2 (4)

1 - 4 (9)

1 - 5 (12)

Water temperature

[°C]

5 – 30

Ambient temperature (drinking water)

[°C]

5 – 25

Ambient temperature (technical application)

[°C]

5 – 40

Max. humidity of air (non-condensing)

[%]

90

DVGW registration number

DW-9151CT0491

SVGW registration number

test pending

Order no.

189 100

189 200

189 300

Other information

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12 Other information

12.1 Sodium content in the water

When softening water by 1 °dH (0.18 mmol/l), the sodium content increases by approx. 8.2 mg/l.

The German Drinking Water Ordinance specifies that the sodium content of drinking water
must not exceed 200 mg/l.

► Select a soft water hardness with a sodium content less than 200 mg/l.

The local water suppliers will inform you about the sodium content of your raw water.

Sample calculation:

Raw water hardness: 28 °dH (50 °f, 5 mmol/l)
Sodium content in the raw water: 10.5 mg/l

Admissible increase of the sodium content by softening:

● 200 mg/l - 10.5 mg/l = 189.5 mg/l

● 189.5 : 8.2 = 23 °dH (41 °f, 4,1 mmol/l)

The raw water hardness may be reduced from 28 °dH (50 °f, 5 mmol/l) to 5 °dH (9 °f, 0.9 mmol/l).

12.2 Hardness ranges

The hardness ranges were classified according to the German Act on Detergents and
Cleaning Agents.

Hardness range

°dH

°f

Soft

< 8.4

< 15

Medium

8.4 - 14

15 - 25

Hard

> 14

> 25

► When dosing cleaning agents, take account of the new hardness range of your

soft water.

Operation log

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13 Operation log

Water softener softliQ:SD___

Serial no.: ________________

Start-up log

Customer

Name:

Address:

Installation / accessories

Drinking water filter (make / type):

Drain connection acc. to DIN EN 1717

yes

no

Floor drain available

yes

no

Safety device

yes

no

Regeneration water lifting system

yes

no

Make:

Dosing

yes

no

Active agent:

Operating values

Water pressure

[bar]

Reading of residential water meter

[m³]

Hardness unit

[°dH]

[°f]

[mol/m³]

[°e]

[°ppm]

Raw water hardness (measured)

Raw water hardness (set)

Soft water hardness (set)

Remarks

Start-up

Company:

Service technician:

Work time certificate (no.):

Date / signature:

Operation log

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1st maintenance

Operating values

Raw water hardness measured / set

/

Soft water hardness measured / set

/

Soft water hardness 0 °dH inspection

OK

Operating pressure

[bar]

Reading of residential water meter

[m³]

Soft water volume meter

[m³]

Regeneration counter

Read out error memory

Error

Date

Time

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Maintenance work

OK

Hose connections checked for leaks and damage

Soft water meter checked for pulse output

Regeneration water meter checked for pulse output

Cables checked for damage and firm seating

Injector and injector sieve cleaned / checked

Chlorine cell checked

Brine valve level electrodes cleaned / replaced

Brine tank cleaned

Salt tablets checked for cleanliness

Reference position moved to manually (C 005)

Suction power of the injector checked during salting:

0.1 l in 60 – 120 s

Current at the chlorine cell during salting

Water sensor checked for function

Product / control valve checked for leaks

Flushing water hose checked for leaks in operation

Filling and suction hose to the brine valve checked for leaks during operation

Maintenance interval reset

Remarks

Performed by

Company:

Service technician:

Operation log

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2nd maintenance

Operating values

Raw water hardness measured / set

/

Soft water hardness measured / set

/

Soft water hardness 0 °dH inspection

OK

Operating pressure

[bar]

Reading of residential water meter

[m³]

Soft water volume meter

[m³]

Regeneration counter

Read out error memory

Error

Date

Time

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Maintenance work

OK

Hose connections checked for leaks and damage

Soft water meter checked for pulse output

Regeneration water meter checked for pulse output

Cables checked for damage and firm seating

Injector and injector sieve cleaned / checked

Chlorine cell checked

Brine valve level electrodes cleaned / replaced

Brine tank cleaned

Salt tablets checked for cleanliness

Reference position moved to manually (C 005)

Suction power of the injector checked during salting:

0.1 l in 60 – 120 s

Current at the chlorine cell during salting

Water sensor checked for function

Product / control valve checked for leaks

Flushing water hose checked for leaks in operation

Filling and suction hose to the brine valve checked for leaks during operation

Maintenance interval reset

Remarks

Performed by

Company:

Service technician:

Operation log

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3rd maintenance

Operating values

Raw water hardness measured / set

/

Soft water hardness measured / set

/

Soft water hardness 0 °dH inspection

OK

Operating pressure

[bar]

Reading of residential water meter

[m³]

Soft water volume meter

[m³]

Regeneration counter

Read out error memory

Error

Date

Time

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Maintenance work

OK

Hose connections checked for leaks and damage

Soft water meter checked for pulse output

Regeneration water meter checked for pulse output

Cables checked for damage and firm seating

Injector and injector sieve cleaned / checked

Chlorine cell checked

Brine valve level electrodes cleaned / replaced

Brine tank cleaned

Salt tablets checked for cleanliness

Reference position moved to manually (C 005)

Suction power of the injector checked during salting:

0.1 l in 60 – 120 s

Current at the chlorine cell during salting

Water sensor checked for function

Product / control valve checked for leaks

Flushing water hose checked for leaks in operation

Filling and suction hose to the brine valve checked for leaks during operation

Maintenance interval reset

Remarks

Performed by

Company:

Service technician:

Operation log

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4th maintenance

Operating values

Raw water hardness measured / set

/

Soft water hardness measured / set

/

Soft water hardness 0 °dH inspection

OK

Operating pressure

[bar]

Reading of residential water meter

[m³]

Soft water volume meter

[m³]

Regeneration counter

Read out error memory

Error

Date

Time

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Maintenance work

OK

Hose connections checked for leaks and damage

Soft water meter checked for pulse output

Regeneration water meter checked for pulse output

Cables checked for damage and firm seating

Injector and injector sieve cleaned / checked

Chlorine cell checked

Brine valve level electrodes cleaned / replaced

Brine tank cleaned

Salt tablets checked for cleanliness

Reference position moved to manually (C 005)

Suction power of the injector checked during salting:

0.1 l in 60 – 120 s

Current at the chlorine cell during salting

Water sensor checked for function

Product / control valve checked for leaks

Flushing water hose checked for leaks in operation

Filling and suction hose to the brine valve checked for leaks during operation

Maintenance interval reset

Remarks

Performed by

Company:

Service technician:

Operation log

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5th maintenance

Operating values

Raw water hardness measured / set

/

Soft water hardness measured / set

/

Soft water hardness 0 °dH inspection

OK

Operating pressure

[bar]

Reading of residential water meter

[m³]

Soft water volume meter

[m³]

Regeneration counter

Read out error memory

Error

Date

Time

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Maintenance work

OK

Hose connections checked for leaks and damage

Soft water meter checked for pulse output

Regeneration water meter checked for pulse output

Cables checked for damage and firm seating

Injector and injector sieve cleaned / checked

Chlorine cell checked

Brine valve level electrodes cleaned / replaced

Brine tank cleaned

Salt tablets checked for cleanliness

Reference position moved to manually (C 005)

Suction power of the injector checked during salting:

0.1 l in 60 – 120 s

Current at the chlorine cell during salting

Water sensor checked for function

Product / control valve checked for leaks

Flushing water hose checked for leaks in operation

Filling and suction hose to the brine valve checked for leaks during operation

Maintenance interval reset

Remarks

Performed by

Company:

Service technician:

Operation log

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6th maintenance

Operating values

Raw water hardness measured / set

/

Soft water hardness measured / set

/

Soft water hardness 0 °dH inspection

OK

Operating pressure

[bar]

Reading of residential water meter

[m³]

Soft water volume meter

[m³]

Regeneration counter

Read out error memory

Error

Date

Time

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Maintenance work

OK

Hose connections checked for leaks and damage

Soft water meter checked for pulse output

Regeneration water meter checked for pulse output

Cables checked for damage and firm seating

Injector and injector sieve cleaned / checked

Chlorine cell checked

Brine valve level electrodes cleaned / replaced

Brine tank cleaned

Salt tablets checked for cleanliness

Reference position moved to manually (C 005)

Suction power of the injector checked during salting:

0.1 l in 60 – 120 s

Current at the chlorine cell during salting

Water sensor checked for function

Product / control valve checked for leaks

Flushing water hose checked for leaks in operation

Filling and suction hose to the brine valve checked for leaks during operation

Maintenance interval reset

Remarks

Performed by

Company:

Service technician:

EC Declaration of Conformity

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EC Declaration of Conformity

In accordance with the Radio Equipment Directive 2014/54/EU, Appendix IV

This is to certify that the system designated below complies with the safety and health requirements of

the applicable European Directives in terms of its design, construction and execution.

This certificate will become invalid if the system is subjected to unauthorised modification.

Water softener softliQ:SD

Serial no.: refer to type plate

The aforementioned system also complies with the following directives and provisions:

• Directive on the Restriction of Hazardous
Substances RoHS (2011/65/EC)

Electrical and Electronic Equipment Ordinance

The following harmonised standards have been applied:

• DIN EN 61000-6-2:2006-03

• DIN EN 61000-6-3:2011-09

• DIN EN 60335-1:2012-10

The following national standards and regulations have been applied:

• DIN 19636-100:2008-02

• DIN EN 14743:2007-09

Responsible for documentation:

Dipl.-Ing. (FH) Markus Pöpperl

Manufacturer

Grünbeck Wasseraufbereitung GmbH

Josef-Grünbeck-Str. 1

89420 Hoechstaedt/Germany

Hoechstaedt; Germany, February 2019

i.V. Dipl.-Ing. (FH) Markus Pöpperl

Head of Technical Product Design

Index

78 | 80

Index

B

Blending valve ............................................................. 49, 56

Brine tank lid ..................................................................... 46

C

Connection block ............................................................... 22

Connection hoses .............................................................. 23

Control unit ...................................................... 14, 17, 52, 56

D

Determining and entering the water hardness ................... 47

Drinking water ............................................................. 10, 69

I

Illuminated LED ring .................................................... 14, 40

Inspection .................................................................... 53, 54

Intervals ............................................................................ 54

M

Maintenance .......................................................... 53, 55, 56

Malfunction ............................................................ 14, 52, 59

Menu structure .................................................................. 38

O

Operation .......................................................................... 64

P

Power mode...................................................................... 13

R

Raw water .................................................................... 28, 69

Regeneration agent ............................................................ 9

Regeneration water ........................................................... 24

S

Salt tablets ............................................. 9, 25, 26, 46, 54, 55

Select regeneration time ................................................... 49

Soft water .............................................................. 10, 28, 56

Spare parts ....................................................................... 57

Starting a manual regeneration ......................................... 47

Start-up ........................................................................ 25, 36

Start-up program ............................................................... 36

System capacity ................................................................ 13

W

Wearing parts ................................................................... 58

Grünbeck Wasseraufbereitung GmbH
Josef-Grünbeck-Str. 1
89420 Hoechstaedt
GERMANY

For more Information go
to www.gruenbeck.com

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www.gruenbeck.com