Viega Prevista 8620.2 User manual

for urinal flushing systems
Model Year built:
8620.2 from 03/2019
en_INT
Urinal flush plate for Prevista
Visign for More 200 infrared flush actuation
Instructions for Use

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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 Intended use 6
2.2.1 Areas of use 6
2.2.2 Maintenance 6
2.3 Product description 7
2.3.1 Overview 7
2.3.2 Technical data 7
2.3.3 Operating mode 9
2.3.4 Setting options 10
3Handling 12
3.1 Assembly information 12
3.1.1 Mounting conditions 12
3.2 Assembly 13
3.2.1 Inserting the magnet valve 13
3.2.2 Mounting the power pack 15
3.2.3 Mounting the flush plate 17
3.3 Commissioning 20
3.3.1 Setting the flush 20
3.4 Errors, faults and remedy 22
3.5 Care and maintenance 23
3.5.1 Care tips 23
3.5.2 Cleaning the magnet valve 24
3.6 Disposal 27
Table of contents
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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
nQualified electricians
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.
About these instructions for use
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This symbol gives additional information and hints.
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
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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: Fields of application / Mounting conditions
Scope / Notice Regulations applicable in Ger‐
many
Protection area for installation of
the power pack in shower and
bath rooms
VDE 0100-701
Regulations from section: Technical data
Scope / Notice Regulations applicable in Ger‐
many
Flush flow DIN 3265
Noise class DIN 4109
2.2 Intended use
2.2.1 Areas of use
The urinal flush plate is intended for the contact-free actuation of
flushes in urinals.
Flushes can be actuated at certain times via the Viega Hygiene+ func‐
tion to prevent stagnation in the potable water pipelines.
2.2.2 Maintenance
The magnet valve should be cleaned once a year to ensure fault-free
operation. See Ä Chapter 3.5.2 „Cleaning the magnet valve“ on page 24
Viega Hygiene+ function
Product information
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2.3 Product description
2.3.1 Overview

Fig. 1: Scope of delivery
1 flush plate
2 Magnet valve
3 valve adapter
4 retaining bolt
5 Power pack
6 silicon grease (2 x 2 g)
7 clamps
8 installation frame
2.3.2 Technical data
The product has the following technical data:
Product information
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Operating voltage Primary 100–240 V AC, 50–60 Hz,
180 mA
Secondary 6 V DC/SELV
Magnetic coil 6 V
Flow pressure 0.05–0.5 MPa (0.5–5 bar)
Calculated flow 0.3 l/s
Flush flow, see Ä „Regulations
from section: Technical data“
on page 6
0.3–0.7 l/s
Noise class, see Ä „Regulations
from section: Technical data“
on page 6
2
Product information
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2.3.3 Operating mode
Flush actuation takes place without contact via an infrared sensor on
the flush plate.
The flush volume can be set in four stages.
In order to actuate a flush, a person must be within the detection area of
the infrared sensor for at least 8 seconds.
If a person leaves the detection area, a flush is automatically actuated.
Depending on the setting, the flush duration is between 2 and 15 sec‐
onds.
A flush cycle can also be manually actuated by placing a hand briefly in
front of the sensor.
Infrared actuation
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.
If no actuation was carried out during the set period of time, the Viega
Hygiene+ function automatically actuates a hygiene flushing.
The interval for the hygiene flushing can be set in five levels.
2.3.4 Setting options
Range of the infrared sensor
The close range is set at 0 to 3 cm.
The far range can be set as follows:
nClose range (approx. 400 mm), so that the flush cannot be inadver‐
tently actuated.
nmedium range (approx. 450 mm, factory setting)
nFar range (approx. 490 mm), so that the automatic flush actuation
also works at a greater distance from the urinal.
Lid in front of sensor
This function is intended for the case that an open lid covers the sensor.
The function is deactivated in the factory settings. If the function is acti‐
vated, a flush cycle is actuated as soon as the lid is removed from the
sensor zone.
Viega recommends however to make sure during planning that the lid is
not placed in front of the sensor in order to guarantee perfect function‐
ality.
Flush duration
The flush duration can be set in four levels. Using the guide values from
the table below, you can determine the flush volume on the basis of
flow pressure and flush duration:
Viega Hygiene+ function
24
Settings for the infrared sensor
Flush settings
Product information
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Flow pres‐
sure
flush dura‐
tion
2 seconds
flush dura‐
tion
5 seconds
flush dura‐
tion
10 seconds
flush dura‐
tion
15 seconds
0.1 MPa
(1 bar) 0.5 l 0.9 l 2.2 l 3.5 l
0.2 MPa
(2 bar) 0.9 l 1.8 l 4.0 l 5.6 l
0.3 MPa
(3 bar) 1.0 l 2.2 l 4.5 l 6.8 l
0.4 MPa
(4 bar) 1.2 l 2.7 l 5.2 l 7.6 l
0.5 MPa
(5 bar) 1.3 l 2.9 l 5.7 l 9 l
Hygiene flushing
The setting determines if respectively how long after non-use a hygiene
flushing is actuated.
The following settings are possible:
nHygiene+ function deactivated
nHygiene flush 1 hour after the last use
nHygiene flush 12 hours after the last use
nHygiene flush 24 hours after the last use (factory setting)
nHygiene flush 72 hours after the last use
nHygiene flush 168 hours after the last use
Product information
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3 Handling
3.1 Assembly information
3.1.1 Mounting conditions
The following minimum distances must be complied with to ensure the
infrared sensor works perfectly:
nA minimum distance of 1000 mm must be maintained to the oppo‐
site walls.
nIf high-gloss wall claddings (polished tiles, mirrors, etc.) are situated
opposite, increase the minimum distance to 1500 mm.
nA minimum distance of 1500 mm must be maintained to urinals situ‐
ated opposite with infrared sensors.
Fig. 2: Protected zones
Minimum intervals
Installation position of the power pack
Handling
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According to the applicable regulations, installation of the power pack in
the protected zones 0 and 1 of shower rooms and bathrooms is not per‐
mitted, see Ä „Regulations from section: Fields of application /
Mounting conditions“ on page 6.
Viega recommends installing the power pack outside of the protected
zones 0–2.
3.2 Assembly
3.2.1 Inserting the magnet valve
Requirements:
nThe pre-wall element has been mounted.
nThe tiling work is completed.
nThe revision opening is freely accessible.
nThe urinal ceramic has been mounted.
Cut into the sticky tape of the shaft cover.
Remove the shaft cover.
Handling
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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.
Open the shut-off with a screwdriver for a few seconds to rinse the
pipeline.
Re-close the shut-off.
Remove the seal.
Grease the sealing elements.
Place the valve adapter on the magnet valve.
NOTICE! Ensure that the sealing element sits in the groove.
Y
5 s
Handling
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Place the magnet valve on straight and carefully screw in as far as it
will go (fine thread).
Screw in the magnet valve (size 27).
max. torque: 1 Nm
3.2.2 Mounting the power pack
DANGER!
Danger due to electrical current
An electric shock can lead to burns and serious injury and
even death.
– Only allow electrical work to be carried out by qualified
electricians.
– Always de-energise the connection cable before work is
commenced.
/N
Handling
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Requirements:
nA 230 V mains connection is available on site.
nThe installation position of the power pack complies with the require‐
ments in acc. with Ä „Installation position of the power pack“
on page 12.
nThe connection cable is de-energised.
Push the cables into the terminals.
Push the power pack into the revision opening.
Position the power pack, battery compartment and terminals.
Handling
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3.2.3 Mounting the flush plate
Put on the installation frame.
Insert the retaining bolts.
Turn the retaining bolts by 90° in a clockwise direction.
Handling
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Align the installation frame.
To fix the retaining bolts, turn safety rings in a clockwise direction.
Connect the magnet valve cable to the control.
Connect the power pack to the control.
INFO! Stand to the side of the panel so that you are not in the
sensor’s detection area.
Open the shut-off valve.
Replace the flush plate.
Handling
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ðThe infrared sensor is calibrated (approx. 60 seconds); the
flush plate emits red light during this time.
The flush plate is operative. The calibration of the flush plate
may take up to 5 additional minutes. During this time, the flush
plate lights up every 10 seconds.
60 s
Handling
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3.3 Commissioning
3.3.1 Setting the flush
The range, flush duration, hygiene flushing and "Lid before sensor"
parameters are set via the DIP switches of the IR control.



"#%$
A Range
B flush duration
C "Lid in front of sensor"
D Hygiene flushing
0 DIP switch position: OFF
1 DIP switch position: ON
Assignment of the DIP switches:
nThe switches 1—2 determine the range of the infrared sensor.
nThe switches 3—4 determine the flush duration.
nSwitch 5 activates the "Lid before sensor" function.
nThe switches 6—8 determine the interval of the hygiene flushing.
Handling
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