Grunbeck BOXER RX User manual

We understand water.
Backwash Filter | BOXER RX/RDX ¾", 1", 1¼"
Operation manual

General Contact
Germany
International Sales
[phone]
Service
[phone]
[email protected]
Availability
Monday to Thursday
7:00 am - 6:00 pm
Friday
7:00 am - 4:00 pm
We reserve the right to technical modifications.
© by Grünbeck Wasseraufbereitung GmbH
Original operation manual
Edition: February 2022
Order no.: TD3-AR004_en_035

Table of contents
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Table of contents
1Introduction ..................................... 5
1.1 Validity of the manual ...................... 5
1.2 Product identification ....................... 6
1.3 Symbols used .................................. 7
1.4 Depiction of warnings ...................... 7
1.5 Demands on personnel.................... 8
2Safety ............................................. 10
2.1 Safety measures............................ 10
2.2 Product-specific safety
instructions..................................... 11
2.3 Conduct in emergencies ................ 11
3Product description ...................... 12
3.1 Intended use.................................. 12
3.2 Product components...................... 13
3.3 Functional description.................... 14
3.4 Accessories ................................... 15
4Transport and storage.................. 16
4.1 Transport ....................................... 16
4.2 Storage .......................................... 16
5Installation ..................................... 17
5.1 Requirements for the installation
site ................................................. 19
5.2 Checking the scope of supply........ 20
5.3 Water installation ........................... 21
6Start-up/Commissioning .............. 25
6.1 Checking the product..................... 25
6.2 Setting the month indicator ............ 26
6.3 Setting the pressure reducer
(BOXER RDX) ............................... 27
6.4 Handing over the product to the
owner/ operating company ............ 28
7Operation ....................................... 29
7.1 Installing Grünbeck’s myProduct
app................................................. 29
8Maintenance and repair................ 30
8.1 Cleaning ........................................ 30
8.2 Intervals ......................................... 31
8.3 Inspection ...................................... 32
8.4 Maintenance .................................. 33
8.5 Spare parts .................................... 37
8.6 Wearing parts ................................ 37
9Troubleshooting............................ 40
9.1 Observations ................................. 40
10 Decommissioning......................... 42
10.1 Temporary downtime..................... 42
11 Dismantling and disposal ............ 43
11.1 Dismantling.................................... 43
11.2 Disposal......................................... 44
12 Technical specifications .............. 45

Table of contents
4 | 52
12.1 BOXER RX .................................... 45
12.2 Pressure loss curves BOXER RX .. 46
12.3 BOXER RDX.................................. 47
13 Operation log................................. 49
13.1 Start-up/Commissioning log ........... 49
13.2 Maintenance .................................. 50

Introduction
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1 Introduction
This manual is intended for owners/operating companies, opera-
tors/users as well as qualified specialists and ensures the safe and
efficient handling of the product. The manual is an integral part of
the product.
●Carefully read this manual and the included manuals on the
components before you operate your product.
●Obey all safety and handling instructions.
●Keep this manual and all other applicable documents, so that
they are available when needed.
Illustrations in this manual are for basic understanding and can differ
from the actual design.
1.1 Validity of the manual
This manual applies to the products below:
●Backwash filter BOXER RX/RDX ¾" (DN 20)
●Backwash filter BOXER RX/RDX 1" (DN 25)
●Backwash filter BOXER RX/RDX 1¼" (DN 32)

Introduction
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1.2 Product identification
You can identify your product based on the product designation and
the order no. indicated on the type plate.
►Check whether the products indicated in chapter 1.1 corre-
spond to your product.
The type plate is located on the filter head.
Designation
1
Nominal connection diameter
2
Flow rate
3
Nominal pressure
4
Water temperature
5
Pore size
6
DVGW test mark
Designation
7
Obey the operation manual
8
Data matrix code
9
Serial no.
10
Order no.
11
QR code
12
Product designation

Introduction
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1.3 Symbols used
Symbol
Meaning
Danger and risk
Important information or requirement
Useful information or tip
Written documentation required
Reference to further documents
Work that must be carried out by qualified specialists only
Work that must be carried out by technical service personnel only
1.4 Depiction of warnings
This manual contains information and instructions that you must
obey for your personal safety. The information and instructions are
highlighted by a warning symbol and are structured as shown below:
1.1.1.1 SIGNAL WORD
1.1.1.2 Type and source of hazard
●Possible consequences
►Preventive measures
The signal words below are defined subject to the degree of danger
and might be used in the present document:

Introduction
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Warning symbol and
signal word
Consequences if the information/
instructions are ignored
DANGER
Personal
injury
Death or serious injuries
WARNING
Possible death or serious injuries
CAUTION
Possible moderate or minor injuries
NOTE
Damage to
property
Possible damage to components, the
product and/or its functions, or an ob-
ject in its vicinity
1.5 Demands on personnel
During the individual life cycle phases of the product, different peo-
ple carry out work on the product. This work requires different quali-
fications.
1.5.1 Qualification of personnel
Personnel
Requirements
Operator/user
•No special expertise required
•Knowledge of the tasks assigned
•Knowledge of possible dangers in case of incorrect
behaviour
•Knowledge of the required protective equipment and
protective measures
•Knowledge of residual risks
Owner/operating com-
pany
•Product-specific expertise
•Knowledge of statutory regulations on work safety
and accident prevention

Introduction
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Personnel
Requirements
Qualified specialist
•Electrical engineering
•Sanitary engineering
(HVAC and plumbing)
•Transport
•Professional training
•Knowledge of relevant standards and regulations
•Knowledge of detection and prevention of potential
hazards
•Knowledge of statutory regulations on accident pre-
vention
Technical service
(Grünbeck's technical
service/authorised ser-
vice company)
•Extended product-specific expertise
•Trained by Grünbeck
1.5.2 Authorisations of personnel
The table below describes which tasks may be carried out by whom.
Operator/
user
Owner/
operating
company
Qualified
specialist
Technical
service
Transport and storage
X
X
X
Installation and mounting
X
X
Start-up/Commissioning
X
X
Operation and handling
X
X
X
X
Cleaning
X
X
X
X
Inspection
X
X
X
X
Mainte-
nance
semi-annually
X
X
X
annually
X
X
Troubleshooting
X
X
X
Repair
X
X
Decommissioning and re-
start/recommissioning
X
X
Dismantling and disposal
X
X

Safety
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2 Safety
2.1 Safety measures
●Only operate your product if all components are installed
properly.
●Obey the local regulations on drinking water protection, acci-
dent prevention and occupational safety.
●Do not make any changes, alterations or extensions on your
product. Only use genuine spare parts for maintenance or re-
pair.
●Keep the premises locked against unauthorised access to
protect imperilled or untrained persons from residual risks.
●Comply with the maintenance intervals (refer to chapter 8.2).
Failure to comply can result in the microbiological contamina-
tion of your drinking water system.
2.1.1 Pressure-related hazards
●Components can be under pressure. There is a risk of injuries
and damage to property due to escaping water and unex-
pected movement of components. Check the pressure lines
and the product for leaks at regular intervals.
●Before starting repair and maintenance work, make sure that
all affected components are depressurised.

Safety
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2.1.2 Groups of persons requiring protection
●Children must not play with the product.
●This product is not designed to be used by persons (including
children) with reduced capabilities, lack of experience or lack
of knowledge. Unless they are supervised, have been in-
structed on the safe use of the product and understand the re-
sulting hazards.
●Cleaning and maintenance must not be carried out by chil-
dren.
2.2 Product-specific safety instructions
WARNING
Excessive contamination of the filter element
●Health risk due to contamination of the drinking water
►Comply with the intervals and recommendations for inspec-
tion and maintenance of the filter.
2.3 Conduct in emergencies
2.3.1 In case of water leaks
1. Close the shut-off valves for the water flow upstream and
downstream of the filter.
2. Locate the leak.
3. Eliminate the cause of the water leak.

Product description
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3 Product description
3.1 Intended use
●The backwash filters BOXER RX and BOXER RDX are de-
signed for filtering drinking water.
●The backwash filter RDX with pressure reducer in addition is
suitable for the adjustment of the outlet pressure on the with-
drawal side in order to maintain the max. admissible operating
pressure stipulated in DIN EN 806-2. The backwash and the
adjustment of the outlet pressure on the withdrawal side, how-
ever, only works when applied in the positive pressure range.
●The filters can be used for positive and negative pressure ap-
plications.
●The filters are designed according to the stipulations of
DIN EN 13443-1 and DIN 19628 and are intended for installa-
tion into drinking water pipes according to DIN EN 806-2 (in-
stallation immediately downstream of the water meter).
●They protect the water pipes and connected water-carrying
system parts from disturbances and corrosion damage due to
undissolved impurities (particles) such as rust particles, sand,
etc.
3.1.1 Foreseeable misuse
●The filters are not suitable for circulation water that has been
treated with chemicals.
●The filters are neither suitable for oils, greases, solvents,
soaps and other lubricating media, nor for the separation of
water-soluble substances.

Product description
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3.2 Product components
Designation
1
Water meter screw
connection
2
Seal
3
Connection flange
4
Flange seal
5
Screw connection kit
6
Filter head
7
O-ring of filter cylinder
Designation
8
Filter element
9
Filter cylinder
10
Backwash handwheel
11
Drain connection
12
Pressure reducer cartridge
13
Maintenance ring
14
Pressure gauge

Product description
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3.3 Functional description
The unfiltered drinking water flows into the filter through the inlet
side and from the outside in through the filter element and to the
pure water outlet. Thus, foreign particles of a size > 100 µm are re-
tained.
Depending on their size and weight, foreign particles stick to the fil-
ter element or they fall straight down into the filter cylinder.
Turning the backwash handwheel to the stop opens the drain and a
backwash is carried out. The water flows through the primary screen
to the filter element and then passes through the filter element in the
opposite direction to normal filtration. Particles sticking to the filter
element are detached and washed out to the drain.
In the backwash filter BOXER RDX, the flow-optimised pressure re-
ducer, which is designed according to DIN EN 1567, additionally en-
ables the outlet pressure on the withdrawal side to be set to
1 –6 bar (factory setting: 4 bar).

Product description
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3.4 Accessories
You can retrofit your product with accessories. Please contact your
local Grünbeck representative or Grünbeck’s headquarters in
Hoechstaedt/Germany for details.
Illustration
Product
Order no.
Drain connection DN 50
188 875
For professional installation according to
DIN EN 1717 with integrated siphon to discharge the
backwash water to the drain.
Safety device protectliQ:A20
126 400
Product to protect against water damage in one and
two-family homes.
For other sizes, please inquire.

Transport and storage
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4 Transport and storage
4.1 Transport
►Transport the product in its original packaging only.
4.2 Storage
►Protect the product from the impacts below when storing it:
•Dampness, moisture
•Environmental impacts such as wind, rain, snow, etc.
•Frost, direct sunlight, severe heat exposure
•Chemicals, dyes, solvents and their vapours

Installation
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5 Installation
The installation of the product represents a major intervention into
the drinking water system and must be carried out by a qualified
specialist only.
In accordance with DIN EN 806-2 and DIN EN 1717, the product is
installed in the cold water pipe downstream of the water meter and
upstream of distribution pipes and the appliances to be protected.
Installation example in horizontal pipe
Designation
1
Inlet shut-off valve
2
Safety device protectliQ
Designation
3
Outlet shut-off valve
4
Drain connection DN 50 acc. to
DIN EN 1717 (optional)

Installation
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Installation example in vertical pipe
Designation
1
Inlet shut-off valve
Designation
2
Outlet shut-off valve

Installation
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5.1 Requirements for the installation site
●The installation site must be frost-proof and ensure the filter's
protection from chemicals, dyes, solvents and their vapours
as well as from direct sunlight.
●The installation site must be away from heat sources (e.g.
washing machines, boilers and hot water pipes).
●The installation room must provide a floor drain. If no floor
drain is available, an appropriate safety device must be in-
stalled in order to prevent water damage.
●The installation site must be adequately illuminated and venti-
lated.
●The installation site must be easily accessible for mainte-
nance purposes.

Installation
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5.2 Checking the scope of supply
Designation
1
Water meter screw connection
2
Seal
3
Connection flange
4
Backwash filter BOXER RX or
BOXER RDX
Designation
5
Screw connection kit
6
Flange seal
7
Quick reference manual
►Check the scope of supply for completeness and damage.