Introduction
Thank you for choosing the Franke S2D 611-78 Kitchen Sink. This manual provides essential information for the safe installation, operation, and maintenance of your new granite (Tectonite) sink. Please read this manual thoroughly before installation and keep it for future reference.
Safety Information
Always follow basic safety precautions when installing or maintaining kitchen fixtures. Ensure all connections are secure and watertight to prevent leaks. If you are unsure about any part of the installation process, consult a qualified professional.
- Ensure the countertop material can support the weight of the sink and its contents.
- Use appropriate personal protective equipment (PPE) during installation.
- Verify all plumbing connections are tight to prevent water damage.
- Do not use abrasive cleaners or harsh chemicals on the sink surface.
Package Contents
Verify that all components are present before beginning installation:
- 1 x Kitchen sink made of granite (Tectonite) with a single bowl (Franke Sirius S2D 611-78 - onyx - 143.0612.629)
- User Manual
- Mounting hardware (if applicable, typically included with sink)
- Drain assembly components (including automatic stopper)
Setup and Installation
The Franke S2D 611-78 is a built-in countertop sink designed for easy integration into your kitchen. The drainer position is reversible, allowing for flexible installation.
Dimensions and Cut-out
- External dimensions: 780 x 500 mm (30.71"W x 19.69"D)
- Dimensions of the bowl: 350 x 432 x 200 mm (13.78"W x 17.01"D x 7.87"H)
- Cut in countertop: 764 x 484 mm
- Minimum width of the substructure: 450 mm
- Number of bowls: 1
- Hole Count: 1 (for faucet)
Installation Steps
- Prepare the countertop opening according to the specified cut-out dimensions (764 x 484 mm). Ensure the edges are smooth and sealed if necessary.
- Position the sink into the opening. The drainer is reversible, so orient it as desired.
- Secure the sink to the countertop using the provided mounting clips or fasteners.
- Install the faucet into the pre-drilled hole.
- Connect the drain assembly, including the automatic stopper mechanism. Ensure all connections are watertight. The drain size is 3 1/2" with a hidden drain type.
- If installing a waste disposal unit, the sink allows for its mounting.
- Perform a leak test by running water into the sink and checking all connections.

Image: Top-down view of the Franke S2D 611-78 Onyx Kitchen Sink, showcasing its single bowl, integrated drainer, and central drain with a hidden overflow.
Operating Instructions
Using your Franke kitchen sink is straightforward. The sink features an automatic stopper controlled by a button for convenient draining.
- Filling the Sink: Close the drain by pressing the button for the automatic stopper.
- Draining the Sink: Press the button again to open the stopper and allow water to drain.
- Hidden Overflow: The sink is equipped with a hidden overflow to prevent accidental spills if the sink is overfilled.

Image: The Franke S2D 611-78 Onyx Kitchen Sink integrated into a kitchen countertop, demonstrating its sleek appearance and functional design with a faucet installed.
Maintenance and Care
To maintain the appearance and longevity of your Franke Tectonite sink, follow these care instructions:
- Daily Cleaning: Wipe with a dry cloth after each use to prevent water spots and mineral buildup.
- Regular Cleaning: For deeper cleaning, use a mild dish soap and a soft sponge or cloth. Rinse thoroughly with water.
- Avoid: Do not use abrasive cleaners, steel wool, harsh chemicals (e.g., bleach, strong acids, or alkalis), or scouring pads, as these can damage the granite (Tectonite) surface.
- Stains: For stubborn stains, consult Franke's official cleaning recommendations for Tectonite sinks.
Troubleshooting
This section addresses common issues you might encounter with your kitchen sink.
| Problem | Possible Cause | Solution |
|---|---|---|
| Slow Draining | Partial clog in drain pipe or stopper mechanism. | Clear any debris from the drain stopper. If the issue persists, check the P-trap for blockages. |
| Water Leaks Around Drain/Faucet | Loose connections or damaged seals. | Tighten all plumbing connections. Inspect seals and gaskets for damage and replace if necessary. |
| Stains on Sink Surface | Food residue, hard water deposits, or improper cleaning. | Clean immediately with mild soap and water. For hard water stains, use a vinegar solution. Avoid abrasive cleaners. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Franke |
| Model Number | S2D 611-78 |
| Color | Onyx |
| Material | Granite (Tectonite) |
| External Dimensions (W x D x H) | 780 x 500 x 200 mm (30.71"W x 19.69"D x 7.87"H) |
| Bowl Dimensions (W x D x H) | 350 x 432 x 200 mm |
| Number of Bowls | 1 |
| Cut-out Dimensions | 764 x 484 mm |
| Minimum Substructure Width | 450 mm |
| Drain Size | 3 1/2" |
| Drain Type | Hidden |
| Installation Type | Countertop (Built-in) |
| Drainer Position | Reversible model |
| Item Weight | 15.71 pounds |
| Part Number | 143.0612.629 |
Warranty and Support
Franke products are manufactured to high standards and come with a manufacturer's warranty. For specific warranty details, claims, or technical support, please refer to the official Franke website or contact Franke customer service directly. Keep your proof of purchase for warranty purposes.
For further assistance, visit the official Franke website: www.franke.com





