Viega 8625.1 User manual

Instructions for Use
WC flush plate for Prevista
Visign for More 205 sensitive
for all Prevista concealed cisterns
Model Year built (from)
8625.1 05/2019
INT

Table of contents
1About these instructions for use 3
1.1 Target groups 3
1.2 Labelling of notes 3
1.3 About this translated version 4
2Product information 5
2.1 Intended use 5
2.1.1 Areas of use 5
2.2 General notes 5
2.3 Product description 7
2.3.1 Overview 7
2.3.2 Technical data 7
2.3.3 Connection diagram 8
2.3.4 Operating mode 8
2.3.5 System expansions 9
2.4 Accessories 10
3Handling 12
3.1 Assembly information 12
3.1.1 Mounting conditions 12
3.1.2 Required material and tools 12
3.2 Assembly 13
3.2.1 Prepare cistern 13
3.2.2 Mounting the flush plate 13
3.2.3 Connecting external sensors 21
3.3 Commissioning 22
3.3.1 Setting the flush 22
3.4 Errors, faults and remedy 24
3.5 Care and maintenance 24
3.5.1 Care tips 24
3.6 Disposal 25
Table of contents
WC flush plate for Prevista Visign for More 205 sensitive 2

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 sanitary professionals and trained personnel
nOperators
nConsumers
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
WC flush plate for Prevista Visign for More 205 sensitive 3

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
WC flush plate for Prevista Visign for More 205 sensitive 4

2 Product information
2.1 Intended use
2.1.1 Areas of use
The flush plate is intended for the actuation of flushes on Viega con‐
cealed cisterns.
Installation is possible in all Prevista concealed cisterns.
2.2 General notes
nIf you notice any damage on the product or individual components,
do not carry out a repair. Instead, have the product replaced by
qualified personnel.
nThis product is not intended for use by persons (including children)
with restricted physical, sensory or mental aptitude or lack of experi‐
ence and/or knowledge.
nMake sure that children do not play with this product.
Observe the symbol listed on the label:
Symbol Description
CE marking, Product Safety in
Europe
EAC marking, registration of prod‐
ucts in the territory of the Cus‐
toms Union
Suitable cisterns
Symbols
Product information
WC flush plate for Prevista Visign for More 205 sensitive 5

Symbol Description
Direct current
Protection class III
The marked product must not be
disposed of as household waste.
Product information
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2.3 Product description
2.3.1 Overview
1
23
4
5
Fig. 1: Scope of delivery
1 flush plate
2 Actuating rod
3 retaining bolt
4 silicon grease (2 x 2 g)
5 installation frame
2.3.2 Technical data
The flush volumes for the flush actuation are:
nSmall flush volume: approx. 2 / 3 / 4 litres
nLarge flush volume: approx. 3.5 / 4.5 / 6 / 7.5 litres
For the setting of the flush see Ä Chapter 3.3.1 „Setting the flush“
on page 22.
If the external sensor (e. g. a remote button on the handle) offers two
activation options, the electronic flush actuation can be used to select
between the large or small flush volume.
Flush volume
Product information
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Hygiene flush volume 3 / 7.5 litres
Hygiene flush interval 1 / 12 / 24 / 72 / 168 hours
Voltage [V] Current [mA]
6.5 135
2.3.3 Connection diagram
/-7_7EBUBEBUB
Fig. 2: Connection diagram, power pack, WC flush plate for Prevista
1 Power pack
2 Electronic drive unit
3 WC flush plate for Prevista
2.3.4 Operating mode
Flushes from Prevista concealed cisterns are actuated contact-free via
the flush plate. The sensor range is 0-30 mm from the flush plate.
Optionally, a large or small flush volume can be flushed.
Viega Hygiene+ function
Voltage and current
Product information
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Stagnation can lead to the build up of germs (e.g. legionella) in potable
water pipelines. It is important to rinse the pipeline regularly to prevent
the build up of bacteria. The Viega Hygiene+ function was developed for
this reason.
Flushes are actuated in a time-controlled manner with the Viega
Hygiene+ function. Interval and flush volume will be set as required and
saved by the control. All settings remain saved during a power cut.
The function is deactivated at the factory.
When a person enters the detection zone (closer than 2 m), the flush
plate lights up.
2.3.5 System expansions
The system's range of functions can be expanded through the connec‐
tion of accessories onto the control.
You need the following accessories to connect a radio receiver instead
of a cable-connected external sensor:
Signals to actuate the flush (e. g. on support hinged handles) sent by
HEWI radio transmitters can be received by a radio receiver (model
8570.58).
Viega Hygiene+ function
Orientation light
Radio controlled actuation
Product information
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2.4 Accessories
For complete mounting of the electronic flush plate, you need the elec‐
tronic accessory set (model 8655.11).
installation set (model 8640.14)
The installation set contains a hollow wall socket to house the power
pack and an empty pipe to connect the cistern.
Extension cable (model 8352.690)
2 metre cable for the extension of the power supply.
Use a maximum of two extension cables with the power
pack (4.75 meter total length).
Connection cable (model 8570.55)
3-meter cable for external flush actuation with on-site and commercially
available buttons with closing function or potential-free contact (closing
period 350 ms)
Required accessories
Optional accessories
Product information
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Extension cable adapter (model 8580.49)
For connection of a radio receiver.
WC remote actuation (models 8640.1 and 8641.1)
For electronic remote actuation at Prevista concealed cisterns.
Product information
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3 Handling
3.1 Assembly information
3.1.1 Mounting conditions
If there is an electromagnetic interference source near the flush plate,
malfunctions may occur.
During installation, keep a minimum distance of 1 m from devices emit‐
ting electromagnetic radiation, e.g. induction hobs.
If external sensors are to be connected to the drive unit, their connec‐
tion cables or empty pipes must be laid in the cistern before tiling is
begun, see Ä Chapter 2.3.5 „System expansions“ on page 9.
3.1.2 Required material and tools
The following material is required for mounting:
nif necessary, accessories for the extension of the system Ä Chapter
2.3.5 „System expansions“ on page 9
The following tools are required for mounting:
ncutting knife
Electromagnetic interference sources
External sensors (optional)
Material
Tool
Handling
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3.2 Assembly
3.2.1 Prepare cistern
Requirements:
nThe accessory set electronic (model 8655.11) is mounted.
nThe cistern is fitted into the pre-wall.
nThe pre-wall is tiled.
▶Remove the shaft cover.
▶Cut into the corners of the revision shaft.
▶Fold the sides of the revision shaft outwards up to the tile level and
snap them off.
3.2.2 Mounting the flush plate
▶Turn the cover plate lock 90° in anti-clockwise direction.
Y
Handling
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▶Remove the cover plate.
▶Close the corner valve.
▶Loosen the flexible hose at the filling valve.
▶Open the corner valve for a few seconds to flush the pipe.
Handling
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▶Close the corner valve.
▶Connect the flexible hose to the filling valve.
▶Re-open the corner valve.
INFO! Check the corner valve and the filling valve for leak
tightness.
Set the desired flush volume, see Ä Chapter 3.3.1 „Set‐
ting the flush“ on page 22.
Handling
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▶Insert the cover plate into the cistern.
▶Turn the cover plate lock by 90° in a clockwise direction.
▶Put on the installation frame.
▶Insert the retaining bolts.
Handling
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▶Turn the retaining bolts by 90° in a clockwise direction.
▶Align the installation frame.
▶To fix the retaining bolts, turn safety rings in a clockwise direction.
If you are not sure which cistern is installed, identify it by
means of the following dimensions.
n3H concealed cistern
nconcealed cistern 3L
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NN-
Handling
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nConcealed cistern 3F
INFO! For installation from the front into the concealed cis‐
terns 3H, 3L, 3S.
▶Determine the distance for the actuating rod.
INFO! Cistern 3H and 3L.
▶If necessary, cut the actuating rod to length.
n0: 75–50 mm
n1: 50–25 mm
n2: 25–10 mm
INFO! Cistern 3F.
▶If necessary, cut the actuating rod to length.
n1: 75–55 mm
n2: 55–35 mm
n3: 35–15 mm
n4: 15–10 mm
NN'
9


Handling
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INFO! For installation from above into concealed cistern 3L.
▶Determine the distance for the actuating rod.
▶If necessary, cut the actuating rod to length.
n0: 60–45 mm
n1: 45–25 mm
n2: 25–10 mm
▶Push the actuating rod through the left opening of the installation
frame as far as it will go.
▶Align the actuating rod.
▶Turn the actuating rod clockwise by 90°.
9

d
Handling
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▶Apply the silicon grease to the electronic connections.
▶Connect the control line to the flush plate.
INFO! The radar sensor is calibrated. During calibration the
flush plate is functionless for 60 seconds.
▶If required, additional external sensors can be connected to the
drive unit. See Ä Chapter 3.2.3 „Connecting external sensors“
on page 21.
▶Mount the flush plate.
▷The flush plate is mounted.
Handling
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