1. Introduction
Thank you for choosing the Bernstein Thermostatic Shower System NT6705C. This manual provides essential information for the safe installation, operation, and maintenance of your new shower system. Please read these instructions carefully before installation and retain them for future reference.
Image 1: The Bernstein Thermostatic Shower System NT6705C installed in a bathroom setting.
2. Safety Information
- Installation must 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.
- Check all connections for leaks after installation.
- The thermostatic mixer is factory preset to 38°C (100.4°F) for scald protection. Do not bypass this safety feature.
- Do not use abrasive cleaners or harsh chemicals on the chrome finish, as this may damage the surface.
- Operating pressure range: 0.5 bar to 8 bar. Maximum water temperature: 90°C.
3. Product Overview
The Bernstein Thermostatic Shower System NT6705C is designed for a comfortable and safe showering experience. It features a durable chrome-plated solid brass construction and a high-quality thermostatic cartridge for precise temperature control.
- Material: Chrome-plated solid brass for main components.
- Scald Protection: Thermostat with a preset 38°C safety stop.
- Hand Shower: Adjustable in height and angle on the shower bar.
- Shower Head: Square design, 25x25cm, with anti-limescale nozzles.
- Connections: Standard DIN connections.
Image 2: Detailed view of the Bernstein Thermostatic Shower System NT6705C.
4. Package Contents
Please check that all components are present and undamaged before installation:
- Thermostatic Mixer Unit
- Shower Bar (Stainless Steel, Chrome-plated)
- Overhead Shower Head (25x25cm, Chrome-plated ABS)
- Hand Shower
- Shower Hose (Stainless Steel)
- Slider for Hand Shower
- Mounting Hardware (Screws, Wall Plugs, Gaskets)
- Thermostatic Cartridge (pre-installed)
- DIN Connectors
- Installation Diagram/Instructions
Image 3: Exploded view showing individual components of the shower system.
5. Specifications
| Feature | Specification |
|---|---|
| Model Number | NT6705C |
| Brand | Bernstein |
| Material | Brass, Stainless Steel, ABS |
| Finish Type | Chrome-plated |
| Color | Stainless Steel Look |
| Mounting Type | Wall Mount |
| Number of Handles | 2 |
| Overhead Shower Size | 25x25cm |
| Operating Pressure | 0.5 bar to 8 bar |
| Max Water Temperature | 90°C |
| Safety Stop | 38°C |
| UPC | 716669501764 |
| Manufacturer | Bernstein Badshop |
| Country of Origin | China |
Flow Rate vs. Pressure
Image 4: Performance graph illustrating water flow rate (L/Min) at various pressure levels (MPa).
6. Setup and Installation
This section provides general guidance. Always refer to the detailed installation diagram included in your package and consult a professional plumber for installation.
6.1 Pre-Installation Checks
- Ensure hot and cold water supply lines are correctly identified and accessible.
- Verify that the wall surface is suitable for mounting and can support the weight of the shower system.
- Confirm that the water pressure is within the recommended range (0.5 to 8 bar).
6.2 Mounting Dimensions
Accurate measurements are crucial for proper installation. The following diagrams provide key dimensions for mounting.
Image 5: Front view technical drawing with mounting hole distances (150 ± 18 mm center-to-center for G1/2" connections).
Image 6: Side view technical drawing indicating overall dimensions and recommended clearances (e.g., 500mm projection for overhead shower, 1125mm shower bar height).
6.3 Installation Steps (General)
- Turn off Water Supply: Locate and turn off the main water supply to your bathroom.
- Mark Mounting Points: Using the provided template or measurements from Image 5, mark the drilling points for the thermostatic mixer and the upper shower bar bracket.
- Drill Holes: Drill holes at the marked points and insert appropriate wall plugs.
- Install Thermostatic Mixer: Secure the thermostatic mixer to the wall, ensuring hot water is connected to the left inlet and cold water to the right (standard DIN connection).
- Assemble Shower Bar: Attach the shower bar to the mixer and secure the upper bracket to the wall.
- Attach Shower Heads: Connect the overhead shower head and the hand shower with its hose to the respective outlets.
- Test for Leaks: Slowly turn on the main water supply and check all connections for leaks.
- Calibrate Thermostat (if necessary): If the water temperature does not match the dial setting, refer to the detailed instructions for thermostatic cartridge calibration.
7. Operating Instructions
7.1 Temperature Control
- The right handle controls the water temperature. Rotate it to adjust.
- The safety stop is set at 38°C. To exceed this temperature, press the safety button on the handle and continue rotating.
- For colder water, rotate the handle counter-clockwise from 38°C.
7.2 Water Flow and Outlet Selection
- The left handle controls the water flow and selects the outlet.
- Rotate the handle to increase or decrease water flow.
- Turn the handle to direct water to either the overhead shower or the hand shower.
7.3 Hand Shower Adjustment
- The hand shower holder can be moved up or down the shower bar.
- It can also be tilted to adjust the spray angle.
8. Maintenance
8.1 Cleaning
- Clean the chrome surfaces regularly with a soft cloth and mild soap or a non-abrasive cleaner specifically designed for chrome.
- Rinse thoroughly with clean water and dry with a soft cloth to prevent water spots.
- Do not use abrasive sponges, scouring pads, or cleaners containing alcohol, ammonia, or harsh acids, as these can damage the finish.
8.2 Anti-Limescale Nozzles
- The overhead and hand shower nozzles are equipped with anti-limescale features.
- To remove limescale buildup, gently rub the rubber nozzles with your finger or a soft brush.
8.3 Thermostatic Cartridge
- The high-quality thermostatic cartridge is designed for long-term performance.
- If you experience inconsistent temperature or flow, the cartridge may need cleaning or replacement. This should be done by a qualified professional.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Inconsistent water temperature | Fluctuating water pressure; clogged thermostatic cartridge; incorrect calibration. | Check water pressure; clean/replace cartridge; recalibrate thermostat (consult professional). |
| Low water flow | Clogged shower head nozzles; debris in water supply; low water pressure. | Clean shower head nozzles; check water filters; verify household water pressure. |
| Water leaks from connections | Loose connections; damaged gaskets. | Tighten connections; replace gaskets. Ensure proper sealing during installation. |
| Water not reaching desired temperature (hot/cold) | Hot/cold water supply reversed; thermostatic cartridge issue. | Verify hot/cold connections; inspect/replace thermostatic cartridge (professional service recommended). |
10. Warranty and Support
Bernstein Badshop products are manufactured to high-quality standards. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or contact Bernstein Badshop customer service. In case of technical issues or questions not covered in this manual, please contact your retailer or a qualified plumber.
Manufacturer: Bernstein Badshop
Model: NT6705C