Viega Grundfix Plus User manual

Instructions for Use
Grundfix Plus Control backflow
trap type 3
for wastewater pipe containing faeces
Model Year built (from)
4987.41 01/2010
INT

Table of contents
1About these instructions for use 4
1.1 Target groups 4
1.2 Labelling of notes 4
1.3 About this translated version 5
2Product information 6
2.1 Standards and regulations 6
2.2 Safety advice 7
2.3 Intended use 7
2.3.1 Areas of use 7
2.3.2 Place of installation and installation conditions 8
2.3.3 Maintenance 10
2.4 Product description 11
2.4.1 Overview 11
2.4.2 Technical data 12
2.4.3 Operating mode 13
2.4.4 Control elements 13
3Handling 15
3.1 Assembly information 15
3.1.1 Installation dimensions 15
3.2 Assembly 16
3.2.1 Mount base unit 16
3.2.2 Connecting connection cable and pressure hose 16
3.2.3 Connecting the control 18
3.3 Commissioning 22
3.3.1 Commissioning the control 22
3.3.2 Pressure test 23
3.4 Control 25
3.4.1 Operating conditions 25
3.4.2 Operating condition - normal operation 26
3.4.3 Operating condition – back pressure 29
3.4.4 Operating condition – malfunction 29
3.4.5 Operating condition – battery-powered emer‐
gency operation 30
3.5 Errors, faults and remedy 31
3.6 Care and maintenance 33
Table of contents
Grundfix Plus Control backflow trap type 3 2

3.6.1 Inspection 33
3.6.2 Maintenance 34
3.6.3 Replacing the rechargeable battery 39
3.7 Disposal 41
Table of contents
Grundfix Plus Control backflow trap type 3 3

1 About these instructions for use
Trade mark rights exist for this document; for further information, go to
viega.com/legal.
1.1 Target groups
The information in this instruction manual is directed at the following
groups of people:
nHeating and plumbing experts and trained personnel
nQualified electricians
nOperators
Individuals without the abovementioned training or qualification are not
permitted to mount, install and, if required, maintain this product. This
restriction does not extend to possible operating instructions.
The installation of Viega products must take place in accordance with
the general rules of engineering and the Viega instructions for use.
1.2 Labelling of notes
Warning and advisory texts are set aside from the remainder of the text
and are labelled with the relevant pictographs.
DANGER!
This symbol warns of possible life-threatening injury.
WARNING!
This symbol warns of possible serious injury.
CAUTION!
This symbol warns of possible injury.
NOTICE!
This symbol warns of possible damage to property.
This symbol gives additional information and hints.
About these instructions for use
Grundfix Plus Control backflow trap type 3 4

1.3 About this translated version
This instruction for use contains important information about the choice
of product or system, assembly and commissioning as well as intended
use and, if required, maintenance measures. The information about the
products, their properties and application technology are based on the
current standards in Europe (e.g. EN) and/or in Germany
(e.g. DIN/DVGW).
Some passages in the text may refer to technical codes in Europe/
Germany. These should serve as recommendations in the absence of
corresponding national regulations. The relevant national laws, stand‐
ards, regulations, directives and other technical provisions take priority
over the German/European directives specified in this manual: The
information herein is not binding for other countries and regions; as said
above, they should be understood as a recommendation.
About these instructions for use
Grundfix Plus Control backflow trap type 3 5

2 Product information
2.1 Standards and regulations
The following standards and regulations apply to Germany / Europe and
are provided as a support feature.
Regulations from section: Place of installation and installation condi‐
tions
Scope / Notice Regulations applicable in Ger‐
many
Correct place of installation of the
backflow trap
EN 12056
Securing of drainage points
beneath the backflow level
DIN EN 12056-4
Securing of drainage points
beneath the backflow level
DIN 1986-100
Requirements in backflow traps
type 3
EN 13564
Regulations from section: Application areas
Scope / Notice Regulations applicable in Ger‐
many
Grundfix Plus Control meets the
requirements as type 3 backflow
trap with double backflow protec‐
tion
EN 13564
Regulations from section: Disposal
Scope / Notice Regulations applicable in Ger‐
many
Disposal of electronic compo‐
nents
WEEE-Richtlinie 2012/19/EU
Regulations from section: Inspection
Scope / Notice Regulations applicable in Ger‐
many
Monthly inspection DIN 1986-3
Product information
Grundfix Plus Control backflow trap type 3 6

2.2 Safety advice
DANGER!
Danger due to electrical current
An electric shock can lead to burns and serious injury and
even death.
nWork on the electrical system may only be carried out
by trained electricians.
nRemove the mains plug before opening the casing.
2.3 Intended use
2.3.1 Areas of use
The Grundfix Plus Control is operated electrically. It is suitable for use in
drain pipelines with household-type wastewater carrying faecal matter
(up to a temperature of 95 °C with pH values of ≥ 4 or ≤ 10).
The backflow trap is suitable for use in drain pipelines made of HT or
sewer pipe DN 100, 125 or 150. When using other pipes such as e.g.
clay pipes or cast-iron pipes, the relevant adapters for HT and sewer
pipes must be used.
Use in industrial areas or in pipelines, which transport aggressive liquids
is not permitted. This includes cleaning agents, which can damage sani‐
tary equipment, drainage equipment and pipe materials.
Viega recommends closing the emergency trap if operation, where no
wastewater is produced, is interrupted for a number of days.
Product information
Grundfix Plus Control backflow trap type 3 7

2.3.2 Place of installation and installation conditions
According to applicable regulations, drainage points beneath the back‐
flow level should be secured against backflow from the sewer, see
Ä ‘Regulations from section: Place of installation and installation condi‐
tions’ on page 6.
A backflow trap can be used if
nthere is a downward slope to the sewer;
nthe rooms are of lower-ranking significance, i.e. neither the inhabi‐
tants' health nor major assets would be damaged in case of flooding
of the rooms;
nthe system is used by a small number of people, and these people
have another WC at their disposal above the back pressure level
which they could use in case of a backflow at the drainage point.
1
5
4
2
3
Fig. 1: Wrong place of installation of the backflow trap
Product information
Grundfix Plus Control backflow trap type 3 8

1
5
4
2
3
Fig. 2: Correct place of installation of the backflow trap
1 Street = Backflow level
2 Area safe from backflow
Product information
Grundfix Plus Control backflow trap type 3 9

3 Connection upper floor
4 Area at risk of backflow
5 Protection against backflow through backflow trap
The connection of the upper floor (3) onto the underground pipe must
be made between the backflow trap and sewer within the building (5) –
only then is it possible to ensure that the wastewater system can func‐
tion faultlessly. To ensure that drainage is permanently guaranteed,
backflow traps may not be employed as the central safeguard for a
building with drainage equipment installed above the backflow level (1) –
in the event of backflow, it would lead to flooding in the building due to
wastewater being unable to drain away (4).
See Ä ‘Regulations from section: Place of installation and installation
conditions’ on page 6
Backflow protections and their control units should be installed in such
a way that they are always accessible.
The backflow sensor reacts at accumulation heights of
100 mm, measured from the upper edge of the base pipe‐
line.
Therefore, when planning, the installation heights of the
existing floor drains, out of which water could flow in the
case of backflow, must be taken into account.
If a backflow trap is retro-fitted in a base pipeline, the
height difference of 30 mm between connection pipe and
sleeve must be taken into account.
2.3.3 Maintenance
A monthly inspection must be carried out to ensure safe operation. See
Ä Chapter 3.6.1 ‘Inspection’ on page 33
Maintenance must be carried out twice a year to ensure safe operation.
See
Ä Chapter 3.6.2 ‘Maintenance’ on page 34
Product information
Grundfix Plus Control backflow trap type 3 10

2.4 Product description
2.4.1 Overview

Fig. 3: Components of the backflow trap
1 - Measuring funnel
2 - Pressure hose
3 - connection cable control
4 - Motor
5 - Pressure switch
6 - Emergency lock actuation
7 - Lid
8 - Casing
9 - Emergency lock shutter
10 - Motor-powered flap
Product information
Grundfix Plus Control backflow trap type 3 11


Fig. 4: Components of the control unit
1 - Display
2 - Power pack
3 - Casing
4 - Terminal strip 15 V
5 - Motor fuse
6 - Battery fuse
7 - Mains supply voltage 230 V
8 - Pressure hose
9 - Connection cable
10 - Outlet for potential-free contacts
2.4.2 Technical data
Switching power pack 88–264 VAC
50/60 Hz
LCD 20 x 2 with lighting
RTC real time clock power reserve 30 days
rechargeable battery 12 V
1.2 Ah
integrated charge and test elec‐
tronics for battery operation for up
to 24 hours in the case of power
failure
Product information
Grundfix Plus Control backflow trap type 3 12

Event memory 512 events
Potential-free relay-outlets Back flow and fault
Casing Plastic casing 201 x 151 x 80 mm
without hinges and PG screw fit‐
ting
Protection class in acc. with
VDE 0100
Control casing IP54; Grundfix Plus
Control IP67
Battery fuse 4 A – slow
Motor fuse 4 A – slow
Closing time in case of back flow In mains or battery operation
approx. 10 seconds
2.4.3 Operating mode
The motor-powered flap is open during normal operation. If the pres‐
sure switch registers the backflow of water, the motor-powered flap is
closed, the following display appears [Back pressure] and a signal
sounds every 10 seconds. The use of the drainage equipment is not
possible during this time. A battery emergency power supply ensures
the functionality of the system even when the 230 V mains power supply
fails.
Using the manual actuator, the backflow trap can be closed manually
and independently of the motor-powered flap.
2.4.4 Control elements

Fig. 5: Control elements backflow trap
1 - Emergency shut-off
Product information
Grundfix Plus Control backflow trap type 3 13


Fig. 6: Control elements control unit
1 - Menu T1
2 - Test T2
3 - Reset T3
Product information
Grundfix Plus Control backflow trap type 3 14

3 Handling
3.1 Assembly information
3.1.1 Installation dimensions
)
-
)%%-
-
)
Fig. 7: Installation dimensions
DN D H1 H2 H3 L1 L2 L3
110 110 260 100 65 405 215 545
125 125 260 105 75 405 215 550
160 160 295 125 95 470 245 640
The backflow sensor reacts at accumulation heights of
100 mm, measured from the upper edge of the base pipe‐
line.
Therefore, when planning, the installation heights of the
existing floor drains, out of which water could flow in the
case of backflow, must be taken into account.
If a backflow trap is retro-fitted in a base pipeline, the
height difference of 30 mm between connection pipe and
sleeve must be taken into account.
Handling
Grundfix Plus Control backflow trap type 3 15

3.2 Assembly
3.2.1 Mount base unit
The installation in the drainage pipeline may only be carried out by con‐
struction or specialised sanitary companies observing the building regu‐
lations and following this instruction for use.
▶Install the base unit horizontally into the base pipeline.
NOTICE! Observe the flow direction!
▶At maximum, line up to the middle of the outlet pipe.
▶Close the emergency lock (position "ZU" (OFF)).
In this way, damage from flooding can be avoided before commis‐
sioning.
▶Lay the empty pipe from the base unit to the mounting position of
the control unit.
▶Close the empty pipe at both sides using plugs.
3.2.2 Connecting connection cable and pressure hose
Do not loosen factory-fitted threaded cable and hose
screw fittings on the casing. Otherwise, the anti-flooding
function cannot be ensured.
Handling
Grundfix Plus Control backflow trap type 3 16

▶Loosen the union nut and push it onto the pressure hose.
▶Remove the black closing cap.
▶Tighten the union nut of the pressure hose slightly using tools.
▶Remove the closing cap.
▶Plug in the electric plug connection straight.
NOTICE! Make sure that the plug is plugged in straight.
Connecting the pressure hose
Connecting connection cable
Handling
Grundfix Plus Control backflow trap type 3 17

▶Tighten the union nut by hand.
INFO! The union nut must not be tightened using pliers.
▶Lead the connection cable and the pressure hose through the
empty pipe to the control. If necessary, use a cable grip device.
3.2.3 Connecting the control
DANGER!
Danger due to electrical current
An electric shock can lead to burns and serious injury and
even death.
nOnly allow electrical work to be carried out by spe‐
cialist companies.
nRemove mains plug before opening the casing.
▶Attach the control unit onto the wall with 4 screws.
Handling
Grundfix Plus Control backflow trap type 3 18

▶Connect the pressure hose to the control using the quick connec‐
tion.
▶Lead the connection cable via the PG screw fitting into the internal
space of the control.
▶Attach the cable ends:
nblack: -
nred: +
▶Insert the rechargeable battery.
Handling
Grundfix Plus Control backflow trap type 3 19

▶Connect the terminal strip.
Clamping strip configuration
Pos. cable Functions Marking on
the connection
strip
1black – fac‐
tory-fitted
15 V mains
connection
GND
2red – factory-
fitted
15 V mains
connection
+ 15V
3black – fac‐
tory-fitted
rechargeable
battery con‐
nection
GND
4red – factory-
fitted
rechargeable
battery con‐
nection
+ AKKU
5Green motor connec‐
tion
motor -
6Yellow motor connec‐
tion
motor +
7 signalises
back flow
RÜCK (BACK)
8 signalises
back flow
RÜCK (BACK)
9 signalises fault STÖR (FAULT)
10 signalises fault STÖR (FAULT)
11 brown Pressure
switch
Sensor
12 White Pressure
switch
Sensor
Handling
Grundfix Plus Control backflow trap type 3 20