Viega Prevista Dry User manual

Instructions for Use
Prevista Dry WC element ceramic
height individually adjustable
for WC flush plates for Prevista
Model Year built (from)
8521.32 03/2019
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 5
2.3.1 Overview 5
2.3.2 Operating mode 6
2.3.3 Compatible components 7
2.3.4 Technical data 8
2.4 Accessories 9
3Handling 12
3.1 Assembly information 12
3.1.1 Mounting conditions 12
3.1.2 Installation dimensions 13
3.2 Assembly 13
3.2.1 Mounting WC element 13
3.2.2 Connecting concealed cistern 21
3.2.3 Mounting the drain elbow 24
3.2.4 Set and clad the WC element 26
3.2.5 Replace gas pressure spring 28
3.2.6 Setting the flush volume 29
3.2.7 Mounting the cover plate 31
3.2.8 Mounting actuating button 34
3.2.9 Limiting the setting range 35
3.2.10 Attaching protective sticker 36
3.2.11 Mounting WC ceramic 36
3.3 Use 39
3.4 Cleaning and maintenance 40
3.5 Disposal 41
Table of contents
Prevista Dry WC element ceramic height individually adjustable 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
nConsumers
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.
This document contains information about operation and maintenance.
Please make sure to hand the document over to the customer / oper‐
ator / user after mounting.
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.
Handover to the user
About these instructions for use
Prevista Dry WC element ceramic height individually adjustable 3

NOTICE!
This symbol warns of possible damage to property.
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
Prevista Dry WC element ceramic height individually adjustable 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
Suitable support profiles DIN 18183
2.2 Intended use
2.2.1 Areas of use
The Prevista Dry WC element is suitable for mounting on masonry wall
constructions and support profiles pursuant to the regulations in section
Ä „Regulations from section: Fields of application / Mounting condi‐
tions“ on page 5 and can be used in a Prevista Dry Plus pre-wall con‐
struction.
The individual seat height can be adjusted within a range of 80 mm
(310–390 mm).
Operation of the WC element is possible from a total weight of at
least 60 kg (body weight and WC ceramic).
2.3 Product description
2.3.1 Overview
The WC element is equipped as follows:
Product information
Prevista Dry WC element ceramic height individually adjustable 5

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Fig. 1: Components
1 3H concealed cistern
2 hydraulic cylinder with hydraulic hose and actuation unit
3 Gas pressure spring
4 transport lock
5 Holder for drain elbow
6 Mounting bracket for drain elbow
7 drain elbow
8 Threaded rods for fixing sanitary objects
(gauges for bore hole 180 mm)
9 Screws and dowels for fixing in the floor
10 Screws for fixing in support profile
11 silicon grease
12 Mounting set for WC ceramic
13 flushing pipe
14 WC connection socket with lip seal
15 hard foam block
16 Corner valve
17 Cavity socket for the release button
18 Revision shaft cover
2.3.2 Operating mode
The height-adjustable WC element is operated without electronics and
functions with the help of a gas pressure spring.
The gas pressure spring enables continuous adjustment of the seat
height.
Product information
Prevista Dry WC element ceramic height individually adjustable 6

CAUTION!
Risk of crushing
The cover plate shifts in parallel with the wall surface
during the height adjustment. Due to this, there is the risk
of crushing in the areas above and below the cover plate.
nKeep your hands away from the dangerous areas.
When the actuating button is pressed and there is a load of at
least 60 kg (body weight and WC ceramic), the ceramic is lowered by a
maximum of 80 mm.
When the actuating button is pressed and there is no load on the WC
ceramic, the WC ceramic is raised by a maximum of 80 mm by the gas
pressure spring.
2.3.3 Compatible components
The WC element is compatible with all common WC ceramics, even
with larger projection (barrier-free).
The WC element can be extended by the following compatible compo‐
nents:
nPrevista Dry fixing element
nPrevista Dry fixing set model 8570.36
nPrevista Dry fixing set model 8573
nFixing set model 8180.73
nOdour extraction via Prevista flushing pipe elbow with ventilator con‐
nection 3H
nAccessory set connection electronic model 8655.11
Mount the components in accordance with the respective instructions
for use.
The odour extraction system is suitable for reducing odour nuisance in
indoor bathrooms and highly frequented toilet facilities. The odour
extraction system is connected to the ventilation system directly.
Lowering WC
Lifting WC
Odour extraction
Product information
Prevista Dry WC element ceramic height individually adjustable 7

An additional water and power connection is required to extend the WC
element to the shower WC. Power must be connected on site.
2.3.4 Technical data
Adjustable seat height approx. 400–480 mm1)
Wall construction
(incl. wall tile)
max. 45 mm
Drive weight
(body weight + ceramic weight)
min. approx. 60 kg
Drive weight max. approx. 28 kg
Release force for the actuating
button
approx. 30 N
Load on middle of ceramic max. 400 kg
1) at factory-set fixing height of 310–390 mm
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)
Connection shower WC
Product data
Flush volume
Water pressure
Product information
Prevista Dry WC element ceramic height individually adjustable 8

2.4 Accessories
The WC element is delivered without cover plate. You require the cover
plate model 8570.39 for mounting.
Required accessories
Product information
Prevista Dry WC element ceramic height individually adjustable 9

For mounting, Viega recommends to use the Prevista Dry fixing set.
Prevista Dry fixing set model8570.36 for fixing the Prevista Dry elements
in single / line mounting, single mounting directly onto the installation
body or corner mounting on masonry or metal support profile.
Prevista Dry fixing set model 8573 for single mounting of Prevista Dry
elements to the solid wall.
Prevista Dry Plus fixing set model 8570.49 for single mounting of the
Prevista Dry elements in Prevista Dry Plus.
Optional accessories
Product information
Prevista Dry WC element ceramic height individually adjustable 10

If a WC ceramic that weighs more than 28 kg is mounted, a gas pres‐
sure spring, model 8580.6 is also required. This gas pressure spring
replaces the gas pressure spring supplied.
Product information
Prevista Dry WC element ceramic height individually adjustable 11

3 Handling
3.1 Assembly information
3.1.1 Mounting conditions
nMasonry walls
nConcreted walls
nMetal support profiles
nPrevista Dry Plus pre-wall constructions
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 installation depth is maximum 200 mm.
The WC element can only be used in combination with wall-hung WCs
(fixing gauges for bore hole 180 mm).
The WC element has an R ½ inch water connection.
NOTICE!
Always use the newly delivered hose set for the water
connection. Do not use old hose sets.
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
Installation depth
WC ceramic
Water connection
Actuation versions
Handling
Prevista Dry WC element ceramic height individually adjustable 12

3.1.2 Installation dimensions
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

Fig. 2: Dimensional drawing
3.2 Assembly
3.2.1 Mounting WC element
▶Remove the mounting template from the element.
Preparing the WC element
Handling
Prevista Dry WC element ceramic height individually adjustable 13

▶Remove the transport locks from the threaded rods and discard.
Masonry and concreted walls
When mounting multiple WC elements with an interval of
> 500 mm, Viega recommends using a Prevista Dry sup‐
port bracket (model 8570.48). Observe the instructions for
use of the support bracket when mounting.
Mounting to a masonry wall
Handling
Prevista Dry WC element ceramic height individually adjustable 14

For mounting, Viega recommends to use a Prevista Dry
fixing set.
▶Determine and mark the fixing points.
nX1: 1100 mm
nX2: 460 mm
▶Determine and mark the fixing points on the floor.
nX3: 375 mm
▶Drill the holes.
▶Insert the dowels.
INFO! Mount the Prevista Dry fixing set pursuant to the instruc‐
tions for use for the fixing set.
▶Loosen the feet of the element using a fork spanner.
9

9
9
Handling
Prevista Dry WC element ceramic height individually adjustable 15

▶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.
▷The element is attached to the wall.

9
Handling
Prevista Dry WC element ceramic height individually adjustable 16

Mount the Prevista Dry Plus pre-wall construction pur‐
suant to the instructions for use of the Prevista Dry Plus
system.
▶Position the element on the floor rail.
▶Fix the feet on the floor rail using the clips.
▶Set the height of the element by means of the feet.
▶Fix the element with the Prevista Dry Plus rail connectors.
Mounting in Prevista Dry Plus


Handling
Prevista Dry WC element ceramic height individually adjustable 17

▷The element is fixed in the Prevista Dry Plus pre-wall construc‐
tion.
Handling
Prevista Dry WC element ceramic height individually adjustable 18

▶Position the element on the floor rail.
▶If necessary, adjust the foot depth from 50 mm (pre-mounted) to 75
mm.
▶Pull the foot out and turn by 90°.
▶Screw the feet together with the support profile.
▶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
▶Attach the element to the support profiles using the screws sup‐
plied.
Mounting in metal support profile
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9
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Handling
Prevista Dry WC element ceramic height individually adjustable 19

▶If applicable, connect further elements to the element via the sup‐
port profile.
Handling
Prevista Dry WC element ceramic height individually adjustable 20