1. Product Overview
The Roca A890070200 Basic Tank One Compact is a concealed cistern designed for high or built-in toilet tanks. This compact unit features a dual flush system, offering 3-liter and 6-liter flush options for water efficiency. Its design allows for a minimal coverage of 80 mm, making it suitable for various installation scenarios. This cistern requires a compatible Roca actuation plate, which is sold separately.
Figure 1: The Roca A890070200 Basic Tank One Compact concealed cistern. This image shows the main unit with its white casing and blue internal components, designed for integration into a wall or furniture.
2. Safety Information
- Installation should be performed by a qualified professional to ensure proper function and safety.
- Always turn off the main water supply before beginning any installation or maintenance work.
- Wear appropriate personal protective equipment (PPE) such as gloves and eye protection during installation.
- Ensure all connections are watertight to prevent leaks and water damage.
- Do not use abrasive cleaners or harsh chemicals on any part of the cistern or its components, as this may cause damage.
- Keep small parts out of reach of children to prevent choking hazards.
3. Components Included
The Roca A890070200 Basic Tank One Compact concealed cistern package includes the following:
- Roca A890070200 Basic Tank One Compact Concealed Cistern Unit
- Discharge tube
Note: A compatible Roca actuation plate is required for operation and is not included with this product. Please ensure you purchase the correct actuation plate for your installation.
4. Installation Guide
This section provides general guidelines for installing the Roca A890070200 concealed cistern. For detailed, step-by-step instructions, please refer to the specific installation manual provided with the product packaging or consult a qualified plumber.
4.1. Pre-Installation Checks
- Verify that all components are present and undamaged.
- Ensure the installation area meets the required dimensions and structural support for a concealed cistern.
- Confirm that the water supply and drainage connections are accessible and correctly positioned.
4.2. Mounting the Cistern
- Position the cistern within the wall cavity or furniture, ensuring it is level and securely fastened according to manufacturer guidelines.
- The compact design allows for a minimal coverage of 80 mm, which should be considered during wall construction or paneling.
- Connect the water inlet to the main water supply, ensuring a tight, leak-free connection.
- Attach the discharge tube to the toilet pan inlet, ensuring proper alignment and sealing.
4.3. Actuation Plate Installation
Once the cistern is installed and the wall/furniture is finished, install the compatible Roca actuation plate. Follow the instructions provided with the actuation plate for its specific installation process.
Figure 2: Dimensional drawing illustrating the measurements and installation clearances for the Roca A890070200 concealed cistern. Key dimensions include width (460mm), depth (80-70mm), and height (645-855mm adjustable).
5. Operating Instructions
The Roca A890070200 concealed cistern features a dual flush mechanism, designed for water conservation. Operation is controlled via the actuation plate (not included).
- Full Flush (6 Liters): Press the larger button or the designated full flush area on your actuation plate for a complete 6-liter flush. This is typically used for solid waste.
- Half Flush (3 Liters): Press the smaller button or the designated half flush area on your actuation plate for a reduced 3-liter flush. This is ideal for liquid waste, saving water.
Ensure the actuation plate is correctly installed and calibrated for optimal flush performance.
6. Maintenance
6.1. Cleaning
- Regularly clean the visible parts of the actuation plate with a soft, damp cloth and mild soap.
- Avoid using abrasive cleaners, scouring pads, or chemical solvents, as these can damage the surface finish.
- For internal cleaning or descaling, it is recommended to consult a professional plumber.
6.2. Inspection
- Periodically check for any signs of leaks around the cistern or toilet connections.
- Ensure the flush mechanism operates smoothly. If you notice any stiffness or unusual noises, it may indicate a need for inspection by a professional.
7. Troubleshooting
Before attempting any repairs, always turn off the water supply to the cistern. If you are unsure about any step, contact a qualified plumber.
| Problem | Possible Cause | Solution |
|---|---|---|
| Water continuously runs into the toilet bowl. | Faulty flush valve seal or fill valve. | Inspect the flush valve seal for debris or wear. Check the fill valve for proper seating. Replacement of parts may be necessary. |
| Cistern does not fill or fills slowly. | Water supply turned off, clogged fill valve, or low water pressure. | Check if the water supply valve is fully open. Inspect the fill valve for obstructions. Consult a plumber if water pressure is consistently low. |
| Flush mechanism is stiff or not working. | Actuation plate misalignment or internal mechanism issue. | Ensure the actuation plate is correctly installed and not obstructed. If the issue persists, the internal flush mechanism may require adjustment or repair by a professional. |
| Visible leaks around the cistern. | Loose connections or damaged seals. | Turn off water supply immediately. Inspect all water connections for tightness. Check seals and gaskets for damage and replace if necessary. Professional assistance is recommended. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | A890070200 |
| Brand | Roca |
| Product Dimensions (L x W x H) | 46 x 8 x 64.5 cm (18.1 x 3.1 x 25.4 inches) |
| Weight | 7.74 Kilograms (17.06 lbs) |
| Color | White |
| Flush Type | Dual Flush (3/6 Liters) |
| Minimum Coverage | 80 mm |
| Components Included | Discharge tube |
| Actuation Plate | Not included, sold separately |
| Country of Origin | Spain |
9. Warranty and Support
For information regarding the product warranty, please refer to the documentation included with your purchase or visit the official Roca website. For technical support, spare parts, or service inquiries, please contact Roca customer service directly. Ensure you have your product model number (A890070200) available when contacting support.
Roca Official Website: www.roca.com
