This document provides installation instructions for a VitrA concealed cistern, a component designed for wall-hung toilets. The cistern is integrated into the wall structure, offering a minimalist aesthetic by concealing the flushing mechanism and water tank.
Function Description:
The VitrA concealed cistern serves as the water reservoir and flushing mechanism for a wall-hung toilet. It is designed to be installed within a wall, behind the toilet pan, providing a clean and uncluttered bathroom appearance. The system includes water supply and drainage connections, a flush plate interface, and adjustable mounting points for the toilet pan. The flushing action is initiated via a remote flush plate, which is typically mounted on the wall above the toilet. The design emphasizes ease of installation and maintenance, with accessible components for servicing.
Important Technical Specifications:
- Dimensions:
- Overall height: 1140 mm
- Width: 518 mm
- Depth: 120 mm
- Minimum installation height from finished floor to top of cistern: 980 mm (for water inlet)
- Minimum installation height from finished floor to bottom of cistern: 365 mm
- Toilet pan mounting bolt spacing: 180 mm
- Drainage pipe connection height from finished floor: 230 mm
- Adjustable toilet pan mounting bolt projection:
- Minimum: 60 mm
- Maximum: 130 mm
- Adjustable toilet pan mounting bolt width:
- Minimum: 475 mm
- Maximum: 550 mm
- Flush plate mounting dimensions: 458 mm (width) x 426 mm (height)
- Flush plate mounting hole diameter: Ø8 x 8 mm
- Water Supply Connection: The cistern features a flexible water supply hose for connection to the main water line.
- Drainage Connection: The system includes a standard drainage pipe connection for waste removal.
- Mounting: The cistern is designed for secure wall mounting, utilizing multiple fixing points.
- Torque Specification: For securing the toilet pan, a maximum torque of 15 Nm is specified.
- Part Numbers:
- General product code: 437513 / 140621-a
- Flush plate options: 770-577X-0X, 770-576X-0X, 770-578X-0X
Usage Features:
- Concealed Design: The primary feature is its ability to be hidden within the wall, creating a sleek and modern bathroom aesthetic.
- Wall-Hung Toilet Compatibility: Specifically designed to support wall-hung toilet pans, which offer easier floor cleaning and a sense of spaciousness.
- Adjustable Mounting: The toilet pan mounting bolts are adjustable in both projection (60-130 mm) and width (475-550 mm), allowing for compatibility with various toilet pan designs and installation requirements.
- Easy Flush Plate Installation: The flush plate mechanism is designed for straightforward installation, often with a "click" mechanism for secure attachment. Different flush plate models (770-577X-0X, 770-576X-0X, 770-578X-0X) are available, offering various aesthetic and functional choices, including options for bidet functions (e.g., 770-578X-0X).
- Bidet Functionality (Optional): Some flush plate models, like the 770-578X-0X, integrate bidet functionality, providing a combined toilet and bidet solution. This involves additional water connections and a bidet nozzle.
- Sound Insulation: The installation process includes steps for attaching sound insulation strips, which help to reduce noise transmission from the cistern to the surrounding wall structure.
Maintenance Features:
- Accessible Components: Despite being concealed, the internal components of the cistern are designed to be accessible for maintenance and repair. The flush plate typically serves as an access panel, allowing technicians to reach the flushing mechanism, water inlet valve, and other internal parts.
- Click-Fit Connections: Many connections, such as the flush pipe and flush plate mechanism, utilize "click-fit" designs, simplifying assembly and disassembly for maintenance.
- Lubrication Requirement: The installation instructions highlight the need to lubricate the rubber seals with oil before inserting pipes, ensuring a watertight seal and facilitating future disassembly if required.
- Clearance for Servicing: The design implicitly allows for sufficient clearance around the internal components once the flush plate is removed, enabling easy inspection and replacement of parts.
- Robust Construction: The use of durable materials and precise engineering aims to minimize the need for frequent maintenance.
Installation Process Highlights:
The installation involves several key steps:
- Wall Preparation: Marking and drilling holes for the cistern frame and toilet pan mounting bolts.
- Cistern Mounting: Securing the cistern frame to the wall using appropriate fasteners (Ø8 x 8 mm).
- Pipe Connections: Connecting the water supply and drainage pipes to the cistern. The flush pipe is inserted with a "click" mechanism.
- Sound Insulation: Applying sound insulation strips to the cistern and pipes to reduce noise.
- Frame Extension/Adjustment: Adjusting the frame extensions and toilet pan mounting bolts to the correct projection and width.
- Flush Plate Installation: Installing the chosen flush plate, which often involves a "click" mechanism for secure attachment and connecting the flush rods.
- Toilet Pan Mounting: Attaching the wall-hung toilet pan to the mounting bolts, ensuring proper alignment and tightening to a maximum of 15 Nm.
- Final Checks: Verifying all connections for leaks and ensuring proper flushing operation.
The manual also includes important warnings regarding the correct calculation of water supply and drain pipe dimensions, emphasizing that incorrect calculations can lead to deformation and are not covered by warranty. It also advises ensuring that the water and waste pipes are installed as described in the brochure to prevent deformation that could lead to warranty invalidation.
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