1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Ideal Standard Cerabase Two-Way Built-in Bathtub or Shower Mixer. This mixer is designed for concealed installation and features a 47mm EKO cartridge for optimal water and energy saving. The complete kit includes the built-in body. Please note that this product does not include additional shower components such as a shower head or hose, which must be purchased separately.
2. Safety Information
- Installation should only be performed by a qualified professional in accordance with local plumbing and building codes.
- Ensure the main water supply is turned off before beginning any installation or maintenance work.
- Verify water pressure and temperature are within recommended limits for safe operation.
- Always use appropriate personal protective equipment during installation.
- Do not use abrasive cleaners or harsh chemicals on the chrome finish, as this can cause damage.
3. Package Contents
Please check that all components are present before installation:
- Ideal Standard Cerabase Two-Way Built-in Mixer (Model A7393AA)
- Built-in Body (Model A1300NU)
- Installation hardware
4. Specifications
| Manufacturer | Ideal Standard |
| Model Number | A7393AA |
| Product Dimensions (L x W x H) | 16.3 x 16.3 x 18.7 cm |
| Weight | 1.72 kg |
| Color | Chrome |
| Finish | Chromed |
| Material | Brass (body), Metal (handle) |
| Style | Two-way |
| Installation Method | Built-in, Single-hole |
| Number of Holes Required | 2 |
| Number of Handles | 1 |
| Handle/Lever Position | Right or Left |
| Special Features | Tarnish resistant, EKO cartridge for water/energy saving |
| Connections | 1/2" supply and discharge fittings |
| Country of Origin | Bulgaria |
5. Installation
Important: Professional installation is highly recommended for built-in mixers to ensure proper function and prevent leaks.
5.1 Pre-Installation Checks
- Ensure all necessary tools are available.
- Confirm water supply lines are accessible and compatible with 1/2" connections.
- Review the technical drawing for precise dimensions and rough-in requirements.
Figure 1: Technical drawing with dimensions and connection points.
5.2 Mounting the Built-in Body
- Prepare the wall opening according to the dimensions provided in the technical drawing (Figure 1).
- Securely mount the built-in body (A1300NU) within the wall, ensuring it is level and at the correct depth. The side view image provides an indication of the depth required for the built-in components.
- Connect the 1/2" hot and cold water supply lines to the designated inlets on the built-in body.
- Connect the 1/2" outlet lines to your chosen bath spout and/or shower outlet.
- Perform a leak test before closing the wall.
Figure 2: Side view illustrating the built-in depth.
5.3 Installing the Trim Kit
- Once the wall is finished, install the decorative faceplate over the built-in body.
- Attach the single-lever handle and the two-way diverter knob (if separate) according to the manufacturer's instructions provided with the trim kit.
- Ensure all components are securely fastened and operate smoothly.
The design facilitates straightforward installation.
6. Operating Instructions
The Ideal Standard Cerabase mixer features a single lever for controlling water flow and temperature, and a two-way function for diverting water.
Figure 3: Front view of the mixer.
6.1 Water Flow and Temperature Control
- To turn the water on, lift the single lever handle.
- To increase water flow, lift the handle further. To decrease flow, lower the handle.
- To adjust water temperature, move the handle left for hotter water and right for colder water.
- The integrated EKO cartridge helps save water and energy by providing a tactile resistance at a certain flow rate, indicating the optimal water-saving position. Pushing past this resistance provides full flow.
The EKO cartridge promotes water and energy efficiency.
6.2 Two-Way Diverter Function
The upper knob on the mixer acts as a two-way diverter, allowing you to switch water flow between two connected outlets (e.g., a bath spout and a separate shower outlet). Rotate the knob to select the desired water outlet.
7. Maintenance
7.1 Cleaning the Chrome Finish
- Clean the mixer regularly with a soft cloth and mild soap or a non-abrasive cleaner specifically designed for chrome finishes.
- Rinse thoroughly with clean water and dry with a soft cloth to prevent water spots.
- Avoid using abrasive sponges, scouring pads, or cleaners containing acids, ammonia, or bleach, as these can damage the chrome finish.
7.2 Cartridge Maintenance
If you experience issues with water flow or temperature control, the 47mm ceramic cartridge may require inspection or replacement. This is a specialized task and should ideally be performed by a qualified plumber.
Figure 4: Exploded view of a typical mixer cartridge.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Low water flow | Clogged aerator (if applicable to connected outlet), debris in water lines, partially closed stopcock, cartridge issue. | Clean or replace aerator. Flush water lines. Ensure stopcocks are fully open. Inspect/replace cartridge (professional recommended). |
| Inconsistent water temperature | Uneven hot/cold water pressure, faulty cartridge, water heater issues. | Check water pressure balance. Inspect/replace cartridge. Consult a plumber for water heater issues. |
| Leaking from handle or spout | Worn O-rings or seals, loose connections, faulty cartridge. | Tighten connections. Replace O-rings/seals. Inspect/replace cartridge (professional recommended). |
| Diverter not switching properly | Debris in diverter mechanism, worn diverter seal. | Clean diverter. Replace diverter seal (professional recommended). |
If you are unable to resolve an issue using the troubleshooting guide, please contact a qualified plumber or Ideal Standard customer support.
9. Warranty and Support
Ideal Standard products are manufactured to high-quality standards and are covered by a manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official Ideal Standard website.
For technical assistance, spare parts, or further inquiries, please contact Ideal Standard customer support through their official channels. When contacting support, please have your product model number (A7393AA) and purchase details readily available.
