Concealed Frame with Roca Duplo WC One Smart Cistern

The Roca Duplo WC One Smart concealed frame with cistern A890078020 is designed for the installation of wall-hung toilets and, especially, compatible Roca Smart Toilets. It integrates a compact dual-flush cistern, a specific supply hose for smart toilets, corrugated pipe, a Ø90/110 mm outlet elbow, and the necessary accessories to make installation easier.

With only 107 mm minimum installation depth and a height of 1,190 mm, it provides a compact solution for hiding the cistern and connections inside the wall or cladding system. Its metal structure offers a load-bearing capacity of up to 400 kg and features height-adjustable legs with a braking system to ensure stable and precise installation.

Frame specifically for Roca Smart Toilets

The Roca Duplo WC One Smart is specially prepared for installing wall-hung smart toilets. Unlike a conventional frame, it includes a supply hose for Smart Toilets and the elements needed to route the connections to the toilet.

Roca recommends this reference for the installation of compatible wall-hung In-Wash® Inspira and Ona models, providing the necessary concealed infrastructure to integrate the smart toilet with a clean aesthetic and no visible external cistern.

Compact concealed cistern

The set integrates a compact cistern with a depth of only 80 mm. This design helps reduce the space occupied inside the partition wall and makes it easier to use in projects where maximizing available bathroom space is a priority.

The minimum total fixing depth specified by Roca is 107 mm.

3/6 litre dual flush

The cistern is factory-set with a 3 and 6 litre dual flush, allowing you to choose a reduced or full flush according to each use.

The mechanism also supports different flush volume settings:

• 2/4 litre dual flush.
• 3/4.5 litre dual flush.
• 3/6 litre dual flush.

This adjustment option makes it possible to adapt the cistern operation to the characteristics of the installed toilet and the needs of the project.

Metal profile resistant up to 400 kg

The structure of the Roca Duplo WC One Smart is made from a metal profile with a load-bearing capacity of up to 400 kg, providing the support required for the installation of a wall-hung toilet.

The frame remains hidden behind the final cladding, transferring the loads to the structure where it is correctly installed and fixed.

Adjustable legs from 0 to 200 mm

The frame includes adjustable legs between 0 and 200 mm, allowing the height to be set during installation to adapt the final position of the sanitary fixture.

The legs also feature a braking system, designed to make adjustment easier and keep the selected position during installation.

Fixing distances of 180 and 230 mm

The system supports an axial fixing distance of 180 or 230 mm, providing compatibility with different wall-hung toilet models that use these standard measurements.

This versatility makes it easier to integrate with compatible Roca Smart Toilets and wall-hung sanitary ware.

Ø90/110 mm outlet elbow

The set includes an outlet elbow compatible with DN90 and DN100 diameters:

• DN90: 90 mm.
• DN100: 110 mm.

This configuration makes it possible to adapt the waste connection to different drainage installations.

Top water connections

Water supply is carried out from the top of the frame. This layout makes it easier to organize the connections within the concealed system and helps keep all technical elements hidden behind the cladding.

The dynamic pressure range supported by the manufacturer is 0.1 to 10 bar.

Front actuation

The Roca A890078020 is prepared for use with a front-positioned flush plate.

The plate provides access to the flushing mechanism and, depending on the selected model, activates the corresponding flush functions.

The flush plate is not included and must be completed with a compatible Roca plate.

Compatible with different Roca flush plates

The Duplo One system is compatible with different Roca flush plates, allowing you to choose the finish and actuation type most suitable for the bathroom design.

Among the compatible solutions documented by Roca are different plates from the PL1, PL2, PL3, PL4 and PL10 ranges, including dual-flush versions and certain electronic solutions.

Exact compatibility should be checked according to the specific reference of the selected plate.

Ready for wall-hung toilet

This frame is designed for the installation of wall-hung toilets. By hiding the cistern, frame and connections behind the cladding, only the sanitary fixture and the flush plate remain visible.

This type of installation provides a cleaner aesthetic and makes it easier to clean the floor around and underneath the toilet.

Included installation accessories

Roca supplies the Duplo WC One Smart with different components needed to complete the concealed system installation:

• Metal frame.
• Concealed compact cistern.
• Dual-flush mechanism.
• Supply hose for Smart Toilets.
• Corrugated pipe.
• Ø90/110 mm outlet elbow.
• Installation accessories.

The flush plate and toilet are not included and must be purchased separately.

Compact dimensions

The frame measures 475 mm wide, 107 mm minimum depth and 1,190 mm high.

Its cistern depth of only 80 mm helps reduce the space needed inside the wall and makes the system especially interesting for bathrooms where a wall-hung toilet is desired while keeping the stud wall relatively compact.

Technical features of the Roca A890078020

• Brand: Roca.
• Collection: Duplo One.
• Model: Duplo WC One Smart.
• Reference: A890078020.
• Type: concealed frame with cistern.
• Application: wall-hung toilets and compatible Smart Toilets.
• Cistern: concealed compact.
• Cistern depth: 80 mm.
• Minimum fixing depth: 107 mm.
• Height: 1,190 mm.
• Width: 475 mm.
• Dimensions: 475 x 107 x 1,190 mm.
• Maximum frame load: 400 kg.
• Adjustable legs: 0-200 mm.
• Leg braking system: yes.
• Axial fixing distance: 180 / 230 mm.
• Default flush: 3/6 litres.
• Adjustable flush: 2/4, 3/4.5 or 3/6 litres.
• Flush plate position: front.
• Flush plate included: no.
• Water inlet position: top.
• Dynamic pressure range: 0.1-10 bar.
• Waste connection: DN90 / DN100.
• Outlet diameters: Ø90 / Ø110 mm.
• Smart Toilets hose: included.
• Corrugated pipe: included.
• Installation accessories: included.
• Suitable for: wall-hung toilet.

Especially suitable for wall-hung Roca In-Wash®

Roca recommends the Duplo WC One Smart A890078020 for the installation of certain wall-hung models from the In-Wash® Inspira and Ona ranges.

The specific supply hose for Smart Toilets makes it easier to integrate the functions of these smart toilets within a concealed installation, keeping the connections hidden.

Concealed solution for modern bathrooms

The Roca Duplo WC One Smart combines a compact cistern, a structure resistant up to 400 kg, adjustable legs, adjustable dual flush and connections prepared for Smart Toilets in a single concealed system.

Thanks to its minimum depth of only 107 mm and the integration of the connections within the frame, it allows you to create a clean and compact wall-hung toilet installation, leaving only the sanitary fixture and the chosen flush plate visible.