Prevista Dry WC element for a wall-mounted WC
Product information
Prevista Dry WC element for a wall-mounted WC
for WC flush plates for Prevista
| Year built (from): | 01.01.2020. |
Trade mark rights exist for this document; for further information, go to viega.com/legal .
Target groups
The information in this instruction manual is directed at the following groups of people:
Heating and plumbing experts and trained personnel
Drywall builders
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.
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.
INFO!
This symbol gives additional information and hints.
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, standards, 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.
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 Germany |
|---|---|
Suitable masonry walls | EN 1996‑1‑1 |
Suitable concrete walls | DIN 1045 |
Suitable stud frames | DIN 18183 |
Product description
Overview
The WC element is equipped as follows:
- 1 Concealed cistern
- 2 Mounting bracket set
- 3 Drain elbow
- 4 Threaded rods for fixing sanitary objects (gauges for bore hole 180 or 230 mm)
- 5 Screws and dowels for fixing in the floor
- 6 Screws for fixing in stud frame
- 7 Mounting set for WC ceramic
- 8 Flushing pipe
- 9 WC connection socket with lip seal
- 10 Site protection
- 11 Site protection
- 12 Inspection shaft cover
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 components:
Prevista Dry fixing element
Prevista Dry fixing set model 8570.36
Prevista Dry fixing set model 8573
Prevista Dry Plus fixing set model 8570.49
Accessory set electronic model 8655.11
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Mount the components in accordance with the respective instructions for use.
Fixing element
The fixing element is suitable for barrier-free installation. Support and grab rails can be mounted on the fastening element.
Technical data
Flush volume
Small flush volume | Factory setting | Approx. 3 l |
Setting range | Approx. 3–4 l | |
Large flush volume | Factory setting | Approx. 6 l |
Setting range | Approx. 4.5–7.5 l |
Water pressure
Water pressure min. | 15 kPa (0.15 bar) |
Water pressure max. | 1000 kPa (10 bar) |
Accessories
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 steel stud frame.
Installation depth max. | 200 mm |
Installation depth min. | 120 mm |
Prevista Dry fixing set model 8573 for single mounting of Prevista Dry elements to the solid wall.
Installation depth max. | 200 mm |
Installation depth min. | 100 mm |
Prevista Dry Plus fixing set model 8570.49 for single mounting of the Prevista Dry elements in Prevista Dry Plus.
Installation depth max. | 270 mm |
Installation depth min. | 150 mm |
Handling
Assembly information
Mounting conditions
Suitable walls
Masonry walls
Concrete walls
Metal stud frames
The wall constructions must comply with the regulations in section Standards and regulations .
The WC element may only be mounted on even wall surfaces.
Construction height
With the construction height, the marked height of the upper edge of the finished floor must be observed.
Actuation versions
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 before cladding.
The corresponding conduit pipe is required when preparing the remote flush actuation.
Installation dimensions
Assembly
Mounting WC element
INFO!
Masonry and concrete 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.
Mounting to a masonry or concrete wall
INFO!
For mounting, Viega recommends to use a Prevista Dry fixing set.
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Determine and mark the fixing points.
X1: 1140 mm
X2: Depending on the fixing set used
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Determine and mark the fixing points on the floor.
X3: 375 mm
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Drill the holes.
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Insert the dowels.
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INFO!
Mount the Prevista Dry fixing set pursuant to the instructions for use for the fixing set.
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Loosen the feet of the element using a fork spanner.
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Adjust the construction height of the element in accordance with the on-site marking of the upper edge of the finished floor.
X: 1000 mm
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Tighten the feet of the element using a fork spanner.
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The element is attached to the wall.
Mounting in Prevista Dry Plus
INFO!
Mount the Prevista Dry Plus pre-wall construction pursuant to the instructions for use of the Prevista Dry Plus system.
NOTICE!
When mounting without a continuous rail above the element, the Prevista Dry Plus fixing set (model 8570.49) must also be used. See example with WC element model 8521.
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Fix two rails to the floor.
Distance: 150 mm
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Position the element on the floor rails.
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Fix the feet on the floor rail using the clips.
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Set the height of the element by means of the feet.
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Fix the element with the Prevista Dry Plus rail connectors.
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The WC element is fixed in the Prevista Dry Plus pre-wall construction.
Mounting in steel stud frame
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Position the element on the floor rail.
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If necessary, adjust the foot depth from 50 mm (pre-mounted) to 75 mm.
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Loosen and pull out the foot plates.
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Turn the foot plates through 90°.
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Fix the feet.
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Adjust the construction height of the element in accordance with the on-site marking of the upper edge of the finished floor.
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Attach the element to the stud frame using the screws supplied.
Connecting concealed cistern
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Turn the site protection panel lock 90° anti-clockwise.
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Remove the site protection panel.
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Place the press connector onto the water inlet.
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Press the connection.
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Seal the threaded connectors of the corner valve.
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Screw the corner valve into the thread side of the press connector.
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Remove the plug.
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Insert the corner valve into the cistern.
INFO!Observe the proper fit of the corner valve.
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Use the lock nut to screw the corner valve and the cistern to each other.
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Remove the protective cap from the flexible hose.
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Screw the flexible hose and the corner valve to each other.
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Insert the site protection panel into the cistern.
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Turn the site protection panel's lock by 90° clockwise.
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Place the inspection shaft on the site protection panel.
INFO!
To remove the inspection shaft, press in the fixing clips at the side.
Mounting the drain elbow
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Insert the drainage elbow holder from the front.
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INFO!
Optional:
If the waste elbow has to be positioned behind the element, insert the mounting bracket from the rear.
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Insert the mounting bracket from behind.
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Insert the drain elbow to the desired depth.
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Fasten the drain elbow using the bow.
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Fit the site protection.
Set and clad the WC element
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Turn in the threaded rods by hand.
For 180 mm actual dimension: Counter the threaded rods in front of the element with a nut.
For 230 mm actual dimension: Counter the threaded rods in front of and after the element with a nut.
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Place the protective caps on the threaded rods.
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Impress a suitable plasterboard cladding panel at the inspection shaft and at the site protection by applying gentle pressure.
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Cut out the recesses for the site protection, the inspection shaft and the threaded rods.
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Clad the element with suitable plasterboard cladding panels.
Setting the flush volume
Requirements:
The cistern is freely accessible.
The water supply has been shut off.
The ceramic has been mounted.
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Turn the site protection panel lock 90° anti-clockwise.
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Remove the site protection panel.
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Push the clip backwards.
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Remove the spacer through the revision opening.
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Fold the tab to the side.
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Remove the overflow pipe through the revision opening.
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Pull the drain valve upwards on the tab.
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Lift the drain valve.
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Remove the drain valve through the revision opening.
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Set the large flush volume at the drain valve.
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Set the small flush volume at the drain valve.
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Insert the drain valve.
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Pull the drain valve downwards on the tab.
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Insert the overflow pipe into the drain valve.
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Fold the tab upwards.
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Insert the spacer.
INFO!Insert the tip of the spacer into the drain valve.
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The spacer can be heard locking into place.
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Insert the site protection panel into the cistern.
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Turn the site protection panel's lock by 90° clockwise.
Cleaning and maintenance
Cleaning and maintenance of the concealed cistern
The concealed cistern is constantly under mechanical, chemical, and physical stress. For this reason, the components must be cleaned as required, and the drain and filling valve seals renewed.
In areas or regions with hard water due to high concentration of calcium or magnesium salts, there is the risk of limescale deposits developing on the inlet and drain valves. The valves may have to be replaced, depending on the extent of the deposits.
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.