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Prevista Dry washbasin element with indi‐
vidually adjustable ceramic height
Instructions for Use
for a barrier-free washbasin with a single-hole fitting, washbasin
with a single-hole fitting
Model Year built:
8535.32 from 03/2019
en_INT
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Prevista Dry washbasin element with individually adjustable ceramic height 2 from 38
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Table of contents
1 About these instructions for use 4
Table of contents
1.1
1.2
1.3
Target groups 4
Labelling of notes 4
About this translated version 5
2 Product information 6
2.1
2.2
2.2.1
2.3
2.3.1
2.3.2
2.3.3
2.3.4
2.4
Standards and regulations 6
Intended use 6
Areas of use 6
Product description 7
Overview 7
Operating mode 7
Compatible components 8
Technical data 8
Accessories 9
3 Handling 12
3.1
3.1.1
3.1.2
3.2
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.2.6
3.3
3.4
3.5
Assembly information 12
Mounting conditions 12
Installation dimensions 13
Assembly 13
Mounting the washbasin element 13
Set and clad the element 24
Mounting the cover plate 26
Mount concealed connection box 30
Changing the sides of the hydraulic hose 33
Replacing corner valves 35
Lifting and lowering the washbasin 35
Cleaning and maintenance 37
Disposal 38
Prevista Dry washbasin element with individually adjustable ceramic height 3 from 38
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About these instructions for use
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:
n Heating and sanitary professionals and trained personnel
n Consumers
n Drywall 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.
Handover to the user
1.2
Labelling of notes
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.
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.
Prevista Dry washbasin element with individually adjustable ceramic height 4 from 38
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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).
About these instructions for use
NOTICE!
This symbol warns of possible damage to property.
This symbol gives additional information and hints.
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.
Prevista Dry washbasin element with individually adjustable ceramic height 5 from 38
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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‐
Suitable masonry walls EN 1996-1-1
Suitable concreted walls DIN 1045
Suitable support profiles DIN 18183
Product information
many
2.2 Intended use
2.2.1 Areas of use
The Prevista Dry washbasin element is suitable for mounting on
masonry wall constructions and support profiles pursuant to the regula‐
tions in section Ä „Regulations from section: Fields of application /
Mounting conditions“ on page 6 and can be used in a Prevista Dry Plus
pre-wall construction.
The Prevista Dry washbasin element is suitable for washbasin ceramics
with single-hole fitting (also barrier-free).
The individual user height can be adjusted within a range of 20 cm.
Prevista Dry washbasin element with individually adjustable ceramic height 6 from 38
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2.3 Product description
2.3.1 Overview
Product information
Fig. 1: Components and scope of delivery
1 washbasin element
2 transport lock
3 Gas pressure spring
4 hydraulic cylinder with hydraulic hose and actuation unit
5 concealed connection box
6 flexible hoses G ½ x 10 mm
7 silicon grease
8 Screws for fixing in support profile
9 Screws and dowels for fixing in the floor
10 corner valves
11 Screw fitting for corner valves
12 concealed socket
13 threaded rods for fixing sanitary objects
14 drain elbow fixing material
15 mounting template
16, fixing set
2.3.2 Operating mode
Gas pressure spring
The height-adjustable washbasin element is operated without elec‐
tronics and functions with the help of a gas pressure spring.
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Product information
The gas pressure spring guarantees continuous adjustment of the
washbasin height within a 20 cm range.
Further information can be found in the instruction for use of
the gas pressure spring.
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.
– Keep your hands away from the dangerous areas.
Lowering the washbasin
Lifting the washbasin
2.3.3
2.3.4
Compatible components
Technical data
When the actuating button is pressed and gentle pressure is applied to
the washbasin, the sanitary ware is lowered by a maximum of 20 cm.
When the actuating button is pressed and no pressure applied, the
washbasin is raised by a maximum of 20 cm by the gas pressure spring.
If necessary, apply some manual help in the case of heavy washbasin
ceramics.
The washbasin element can only be used for WB ceramics with a total
weight including fitting of 15-21 kg.
The cover plate 8570.45 is required for the detailed installation.
individual adjusting range of the
washbasin height
200 mm
Fixing distance of the washbasin
ceramic
max. washbasin width 700 mm
Prevista Dry washbasin element with individually adjustable ceramic height 8 from 38
280 mm
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Product information
2.4 Accessories
Required accessories
support bracket
Wall construction
max. 45 mm
(incl. wall tile)
total liftable and sinkable weight approx. 18 kg ± 3 kg
Release force for the actuating
approx. 30 N
button
Depending on the total weight (including fitting, amongst
other things), it may be necessary to apply some gentle
manual support when raising or lowering the washbasin
completely.
The washbasin element is delivered without cover plate. You require the
cover plate 8570.45 for mounting.
Spare parts
The support bracket (model 8570.48) is used for the connection of mul‐
tiple Viega Prevista elements at an interval of less than 500 mm to
enable a stable cladding.
If necessary, you can order the following spare parts:
Cover plate, model 8570.45, glass
n Push button with rosette for individual height adjustments of WB
ceramic
n 2 double straight screw fittings with compression fittings for copper
pipe d10
n 2 connection pipes, chrome-plated, d10
n Drain elbow 300 mm, chrome-plated brass
n Chrome-plated plastic cover plate for concealed connection box
Prevista Dry washbasin element with individually adjustable ceramic height 9 from 38
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Product information
Drain elbow model 8064.90, chrome-plated with flanged rim
Drainpipe model 9945.143
n chrome-plated with flanged rim 75 mm, article 121 587
n chrome-plated with flanged rim 120 mm, article 670 856
Gas pressure spring model 8172.1, only in connection with Prevista Dry
washbasin element model 8535.32
n Steel
n hydraulic actuation
Push button 8064.10 with rosette, only in connection with Prevista Dry
washbasin element model 8535.32
n chrome-plated brass
n hydraulic actuation
Prevista Dry washbasin element with individually adjustable ceramic height 10 from 38
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Product information
Cover plate for concealed connection box model 8314.5
n chrome-plated, plastic
n 2 double straight screw fittings with compression fittings for copper
pipe d10
n 2 connection pipes, chrome-plated, d10
n Drain elbow 300 mm, chrome-plated brass
n Adjusting pipe, chrome-plated brass
Prevista Dry washbasin element with individually adjustable ceramic height 11 from 38
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3 Handling
NNNN
3.1 Assembly information
3.1.1 Mounting conditions
Suitable walls
n Masonry walls
n Concreted walls
n Metal support profiles
n Prevista Dry Plus pre-wall constructions
The wall constructions must comply with the regulations in section
Ä
tions“ on page 6.
The washbasin element may only be mounted on even wall surfaces.
Handling
„Regulations from section: Fields of application / Mounting condi‐
Minimum distance to the wall when mounting support profiles
Fig. 2: Minimum distance to the wall
The minimum distance to the wall is:
n left 160 mm; outermost fixing points for support profiles with a depth
of 75 mm
n right 135 mm; (when holding plate 2 is shortened) outermost fixing
Prevista Dry washbasin element with individually adjustable ceramic height 12 from 38
points for support profiles with a depth of 50 mm.
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Construction height
3.1.2 Installation dimensions
Handling
With the construction height, the marked height of the upper edge of
the finished floor must be observed.
3.2 Assembly
Fig. 3: Dimensions
3.2.1 Mounting the washbasin element
Preparing the concealed connection box
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Handling
Remove the mounting template from the element.
Remove the site protection from the concealed connection box.
Seal the corner valve (e.g. using hemp).
Screw the corner valve into the screw fitting.
Prevista Dry washbasin element with individually adjustable ceramic height 14 from 38
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Handling
INFO! Observe the additional markings when aligning the corner
valves.
Screw in until the connection to the washbasin fitting is between the
markings.
Mount the entire seats in the concealed connection box.
The object can be heard locking into place.
Prevista Dry washbasin element with individually adjustable ceramic height 15 from 38
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Preparing the washbasin element
Handling
Seal in the flexible hose on the thread side and assemble on the wall
lead-in of the concealed connection box.
Seal in the reducing sleeve on one side and pre-assemble with the
wall lead-in. Please ensure that the supplied rubber seals are fitted
correctly.
Provide a connection to the piping system on site.
Mount the flexible hose on the left-hand side of the wall lead-in of
the element using a compression fitting.
Repeat the mounting on the right-hand side.
Only for mounting in support
profile
Prevista Dry washbasin element with individually adjustable ceramic height 16 from 38
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NNNN
Handling
Mount retaining plates 1 and 2. They can be attached on the left and
right hand side of the element.
Left: min. interval to wall 160 mm; external fixing points for support
profiles with a depth of 75 mm.
Right: min. interval to wall 135 mm (when retaining plate 2 is cut to
length): internal fixing points for support profiles with a depth of
50 mm.
Mount the pipe clamp for the drain elbow to retaining plate 2.
Mount the drain elbow in the pipe clamp.
Prevista Dry washbasin element with individually adjustable ceramic height 17 from 38
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Handling
Make the wastewater connection (DN 40) on site.
Mount the pipe clamp to retaining plate 1 and on the sleeve of the
wastewater connection.
Mounting to a masonry wall
Masonry and concreted walls
When mounting multiple washbasin elements with an
interval of > 500 mm, Viega recommends to use a Pre‐
vista Dry support bracket (model 8570.48). Observe the
instructions for use of the support bracket when mounting.
Prevista Dry washbasin element with individually adjustable ceramic height 18 from 38
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For mounting, Viega recommends to use a Prevista Dry
9
9
9
fixing set.
Determine and mark the fixing points.
n X1: 1100 mm
n X2: 460 mm
Handling
Determine and mark the fixing points on the floor.
n X3: 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.
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9
Handling
Adjust the construction height of the element in accordance with the
on-site marking of the upper edge of the finished floor.
n X: 1000 mm
Tighten the feet of the element using a fork spanner.
Mount the two support brackets in accordance with the instructions
for use for the support brackets.
The element is attached to the wall.
ð
Prevista Dry washbasin element with individually adjustable ceramic height 20 from 38
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Mounting in Prevista Dry Plus
Handling
Mount the Prevista Dry Plus pre-wall construction pursuant
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 Steptec rail connectors.
Prevista Dry washbasin element with individually adjustable ceramic height 21 from 38
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The element is fixed in the Prevista Dry Plus pre-wall construc‐
ð
tion.
Handling
Prevista Dry washbasin element with individually adjustable ceramic height 22 from 38
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Mounting in metal support profile
d
9
Y
Y
Handling
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.
n X: 1000 mm
Attach the element to the support profiles using the screws sup‐
plied.
Prevista Dry washbasin element with individually adjustable ceramic height 23 from 38
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3.2.2 Set and clad the element
Handling
If applicable, connect further elements to the element via the sup‐
port profile.
Turn in the threaded rods by hand.
Tighten the nuts of the threaded rods with a fork spanner.
Place the protective caps on the threaded rods.
Make the water connections.
Prevista Dry washbasin element with individually adjustable ceramic height 24 from 38
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NJO
NBY
煦
Handling
Cut out the recesses for the mounting template.
Clad the element with suitable gypsum cardboard cladding panels.
The plasterboard cladding panels must not be screwed together
with the height-adjustable internal frame!
Mark the concealed socket on the left or right hand side, as
required, and drill the recess hole.
Install the concealed socket and mounting template.
Prevista Dry washbasin element with individually adjustable ceramic height 25 from 38
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3.2.3 Mounting the cover plate
Handling
Tile up to the mounting template and concealed socket.
Remove the mounting template.
Mount the bearing surface (H support) for the cover plate flush with
the finished wall surface (size 17 / 19).
Prevista Dry washbasin element with individually adjustable ceramic height 26 from 38
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Handling
Undo the four threaded nuts on the element (size 17).
Undo the four front threaded nuts on the arms of the base
(size 17 nut).
Screw the threaded nuts in or out to adjust all four points flush with
the wall surface.
Check they are flush with the wall surface using a spirit level.
Tighten the rear threaded nuts at all four points (size 17).
When doing so, hold the threaded bolts with a flat-blade screw‐
driver.
Tighten the front threaded nuts at all four points (size 17).
Check to ensure they are flush.
Prevista Dry washbasin element with individually adjustable ceramic height 27 from 38
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Handling
Shorten the threaded bolts for fixing the sanitary ware according to
the ceramic used.
Remove the transport lock and discard.
Screw the sleeve onto the hydraulic cylinder.
Screw the sleeve tightly into the concealed socket with the screws
supplied.
Screw on the actuating button and push the rosette onto the
actuating button.
Screw the rosette onto the sleeve.
Observe the minimum radius of 50 mm for hydraulic actuation.
This prevents the hydraulic actuation from buckling.
Fit the supplied seal in the cover frame on the front.
Prevista Dry washbasin element with individually adjustable ceramic height 28 from 38
Page 29
Apply the silicone seal to the rear of the cover frame.
ı3
The radius of the hydraulic actuation must be at least 50 mm.
This prevents the hydraulic actuation from buckling.
Handling
Align the cover frame.
Attach the cover frame to the element with the recessed head
screws supplied.
Apply the cover plate and secure with the supplied screws.
Remove the site protection from the concealed connection box.
Check: The gap dimension between the wall and the cover
ð
plate must amount to 5 mm, in order to ensure the washbasin
height adjustment functions smoothly.
Prevista Dry washbasin element with individually adjustable ceramic height 29 from 38
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Cut the concealed connection box flush with the cover plate
INFO! Take care when cutting! Do not damage the cover
plate.
3.2.4 Mount concealed connection box
Cut the sound insulation panel to size.
Mount the washbasin.
Handling
Fasten the washbasin and seal using silicone.
Prevista Dry washbasin element with individually adjustable ceramic height 30 from 38
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Handling
Manufacture the connection for the washbasin fitting on one side
using the copper pipe supplied.
If necessary, cut the chrome-plated pipe elbow supplied to the cor‐
responding length.
Manufacture the second connection on the other side in the same
way.
Shorten the copper pipe. The connection of the compression fitting
must be within the concealed connection box.
Mount the compression fitting.
Optionally, connect the washbasin fitting to the concealed connec‐
tion box using flexible hoses.
Prevista Dry washbasin element with individually adjustable ceramic height 31 from 38
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9
X
Handling
Align the corner valves.
When doing so, align the pipe elbow to the marking aid (line on the
concealed connection box).
Remove the plug.
Insert the drain elbow into the lip seal of the odour trap.
If applicable, identify sizes on the drain elbow and adjusting pipe
that may have to be shortened.
The sizes are marked in the diagram with X and are dependent on
the chosen ceramic.
Deburr the cut edge.
Grease the lip seal.
Insert the drain elbow through the cover plate in the lip seal of the
odour trap.
Prevista Dry washbasin element with individually adjustable ceramic height 32 from 38
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Set the odour trap to the right size at the height.
The vertical setting range is 20 mm.
Attach the cover plate to the concealed connection box.
The lateral supports serve as a safeguard against distortion.
Handling
3.2.5
Turn the drain elbow to the right and in doing so secure it to the
washbasin.
Check for leak tightness.
Changing the sides of the hydraulic hose
Prevista Dry washbasin element with individually adjustable ceramic height 33 from 38
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Undo the Allen screw (size 5) on the head of the gas pressure
spring.
Swing out the gas pressure spring to the left or right-hand side.
Handling
Turn the head of the gas pressure spring with the hydraulic hose by
180°.
Set the gas pressure spring back in position and secure with the
Allen screw.
Mount the hydraulic hose and the actuation unit as described
Ä
Chapter 3.2.4 „Mount concealed connection box“ on page 30.
Prevista Dry washbasin element with individually adjustable ceramic height 34 from 38
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3.2.6 Replacing corner valves
If the corner valve has to be replaced, proceed as follows:
Handling
Re-mount the hydraulic hose in the guide provided on the rear side
of the washbasin element.
3.3
Cut the water supply.
When replacing (size 19), counter the screw fitting with a spanner
(size 27).
Lifting and lowering the washbasin
The washbasin can be lifted and lowered hydraulically within a 20 cm
range with the help of a built-in gas spring.
The maximum hydraulically adjustable weight of the washbasin
including the fitting is 15 to 21 kg.
If necessary, help a little by hand (push up or lean on it), until
the full adjusting distance is achieved.
The washbasin is secured and released (adjustability on/off) with the
actuation button.
Prevista Dry washbasin element with individually adjustable ceramic height 35 from 38
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Lowering the washbasin
4501
Handling
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.
– Keep your hands away from the dangerous areas.
Push the washbasin down by hand or by leaning on it.
If the washbasin does not lower: Push the actuation button to
unlock.
Push the actuation button when the desired position has been
reached.
The washbasin is secured in the chosen position.
ð
Prevista Dry washbasin element with individually adjustable ceramic height 36 from 38
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Lifting the washbasin
4501
Handling
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.
– Keep your hands away from the dangerous areas.
Push the actuation button to unlock.
The washbasin is unlocked and lifts hydraulically (if necessary,
ð
carefully pull it up).
Press the actuation button again when the desired positioned has
been reached.
The washbasin is secured in the chosen position.
ð
3.4
Cleaning
Prevista Dry washbasin element with individually adjustable ceramic height 37 from 38
Cleaning and maintenance
The height adjustment mechanism is maintenance-free.
Maintenance and cleaning work may only be carried out by specialist
trade professionals or qualified experts.
Clean the cover plate using only soap-based cleaning agents.
Scouring milk and cleaning agents or disinfectants containing the fol‐
lowing ingredients may not be used:
Page 38
n alcohol
n ammoniac
n hydrochloric acid
n phosphoric acid
n acetic acid
The contents damage the surface.
NOTICE!
Pipe damage
Do not use a cleaning spiral around the area of the flexible
drain elbow on the washbasin connection.
Consult a specialist company in the event of blockages.
Handling
3.5 Disposal
Separate the product and packaging materials (e. g. paper, metal,
plastic or non-ferrous metals) and dispose of in accordance with valid
national legal requirements.
Prevista Dry washbasin element with individually adjustable ceramic height 38 from 38
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