Viega Prevista 8524.19 User manual

Instructions for Use
Prevista Dry WC element building
project version
for WC flush plates for Prevista
Model Year built (from)
8524.19 07/2019
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 Standards and regulations 5
2.2 Intended use 5
2.2.1 Areas of use 5
2.3 Product description 6
2.3.1 Overview 6
2.3.2 Compatible components 6
2.3.3 Technical data 7
3Handling 8
3.1 Assembly information 8
3.1.1 Mounting conditions 8
3.1.2 Installation dimensions 9
3.2 Assembly 9
3.2.1 Mounting WC element 9
3.2.2 Connecting concealed cistern 12
3.2.3 Mounting the drain elbow 16
3.2.4 Set and clad the WC element 17
3.2.5 Setting the flush volume 18
3.3 Cleaning and maintenance 21
3.4 Disposal 21
Table of contents
Prevista Dry WC element building project version 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
nDrywall builder
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
Prevista Dry WC element building project version 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
Prevista Dry WC element building project version 4

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
Suitable masonry walls EN 1996-1-1
Suitable concreted walls DIN 1045
2.2 Intended use
2.2.1 Areas of use
The Prevista Dry WC element is suitable for mounting on masonry wall
constructions pursuant to the regulations in section Ä „Regulations
from section: Fields of application / Mounting conditions“ on page 5.
Product information
Prevista Dry WC element building project version 5

2.3 Product description
2.3.1 Overview

Fig. 1: Components
1 concealed cistern 3L
2 Drain elbow
3 Holder for drain elbow
4 Reducer
5 threaded rods for wall-mounted WC
(gauges for bore hole 180 or 230 mm)
6 Screws and dowels for fixing in the floor
7 Screws for fixing in support profile
8 Mounting set for WC ceramic
9 flushing pipe
10 WC connection socket with lip seal
11 Fixing set (model 8180.73)
12 Protective plug for drain elbow DN90
13 Protective plug for flushing pipe elbow
14 Revision shaft cover
15 Corner valve
2.3.2 Compatible components
The WC element is compatible with all common WC ceramics, even
with larger projection (barrier-free).
Product information
Prevista Dry WC element building project version 6

The WC element can be extended by the following compatible compo‐
nents:
nAccessory set connection electronic model 8655.11
▶Mount the components in accordance with the respective instruc‐
tions for use.
2.3.3 Technical data
Small flush volume Factory setting approx. 3 l
setting range approx. 2–4 l
Large flush volume Factory setting approx. 6 l
setting range approx. 3.5–7.5 l
Water pressure min. 15 kPa (0.15 bar)
Water pressure max. 1000 kPa (10 bar)
Flush volume
Water pressure
Product information
Prevista Dry WC element building project version 7

3 Handling
3.1 Assembly information
3.1.1 Mounting conditions
The wall constructions must comply with the regulations in section
Ä „Regulations from section: Fields of application / Mounting condi‐
tions“ on page 5.
The WC element may only be mounted on even wall surfaces.
With the construction height, the marked height of the upper edge of
the finished floor must be observed.
The WC element can be extended by a remote flush actuation or by an
electronic actuation, as well as by sensitive flush plates. The cables for
these electrical actuation versions must be laid in front of the cladding.
The corresponding empty pipe is required when preparing the remote
flush actuation.
Suitable walls
Construction height
Actuation versions
Handling
Prevista Dry WC element building project version 8

3.1.2 Installation dimensions





Fig. 2: Dimensional drawing
3.2 Assembly
3.2.1 Mounting WC element
Masonry and concreted walls
When mounting multiple WC elements with an interval of
> 500 mm, Viega recommends the use of a Prevista Dry
support bracket (model 8570.48). Observe the instructions
for use of the support bracket when mounting.
Handling
Prevista Dry WC element building project version 9

▶Determine and mark the fixing points.
nX1: 1100 mm
X2: 390 mm
▶Drill the holes.
▶Insert the dowels.
▶Mount the fixing set.
▶Determine and mark the fixing points on the floor.
nX3: 375 mm
▶Drill the holes.
▶Insert the dowels.
Mounting to a masonry wall
9
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9
9
Handling
Prevista Dry WC element building project version 10

▶Loosen the feet of the element using a fork spanner.
▶Adjust the construction height of the element in accordance with the
on-site marking of the upper edge of the finished floor.
nX: 1000 mm
▶Tighten the feet of the element using a fork spanner.
▶Screw the element to the wall.
▷The element is attached to the wall.

9
Handling
Prevista Dry WC element building project version 11

3.2.2 Connecting concealed cistern
▶Turn the cover plate lock 90° in anti-clockwise direction.
▶Remove the cover plate.
▶Remove the plug.
▶Insert an empty pipe.

Handling
Prevista Dry WC element building project version 12

▶Fasten the empty pipe in the cistern.
▶Mount the screw fittings.
▶Mount the corner valve.
▶Fasten the corner valve.
Handling
Prevista Dry WC element building project version 13

▶Connect the corner valve.
▶Insert the cover plate into the cistern.
▶Turn the cover plate lock by 90° in a clockwise direction.
▶Place the revision shaft on the cover plate.
Handling
Prevista Dry WC element building project version 14

To remove the revision shaft, press in the fixing clips at
the side.

Handling
Prevista Dry WC element building project version 15

3.2.3 Mounting the drain elbow
▶Insert the mounting bracket for the drain elbow.
▶Insert the drain elbow to the desired depth.
▶Fasten the drain elbow using the bow.
▶Fit the site protection.
"#$
Handling
Prevista Dry WC element building project version 16

3.2.4 Set and clad the WC element
▶Turn in the threaded rods by hand.
For 180 mm gauge for bore hole: Counter the threaded rods in front
of the element with a nut.
▶Place the protective caps on the threaded rods.
▶Corn a suitable gypsum cladding panel at the revision shaft and at
the site protection by applying gentle pressure.
▶Cut out the recesses for the site protection, the revision shaft and
the threaded rods.
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
Handling
Prevista Dry WC element building project version 17

▶Clad the element with suitable gypsum cardboard cladding panels.
3.2.5 Setting the flush volume
For an electronic flush actuation, the small flush volume
must be set to 2 litres.
Handling
Prevista Dry WC element building project version 18

Requirements:
nThe cistern is freely accessible.
nThe water supply has been shut off.
nThe ceramic has been mounted.
▶Fold the tabs forward.
▶Lift the drain valve.
▶Remove the drain valve through the revision opening.
Handling
Prevista Dry WC element building project version 19

▶Set the large flush volume at the drain valve.
▶Set the small flush volume at the drain valve.
Requirements:
nThe drain valve has been dismounted.
nThe flushing throttle has been removed.
▶Unlock the flushing throttle.
▶Set the flush flow at the throttle.
--
Setting the flush flow
Handling
Prevista Dry WC element building project version 20