1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your Franke Sirius S2D 611-78 XL Onyx Kitchen Sink. Please read these instructions carefully before installation and use to ensure proper function and longevity of your product. Retain this manual for future reference.
Safety Information
- Always ensure the water supply is turned off before beginning any installation or maintenance work.
- Wear appropriate personal protective equipment, such as gloves and eye protection, during installation.
- If you are unsure about any part of the installation process, consult a qualified professional.
- Avoid using abrasive cleaners or harsh chemicals on the sink surface, as this may damage the Tectonite material.
2. Package Contents
Verify that all components are present and undamaged before proceeding with installation.
- Franke Sirius S2D 611-78 XL Onyx Kitchen Sink (1 unit)
- Drain assembly (3 1/2" size)
- Automatic stopper mechanism
- Installation clips/fasteners
- User Manual (this document)
3. Setup and Installation
3.1 Pre-Installation Checks
- Ensure your countertop opening matches the required cut-out dimensions: 764 x 484 mm.
- Verify that the substructure width is at least 600 mm to accommodate the sink.
- Confirm that all necessary plumbing connections are accessible and meet local codes.
- The sink features a reversible drainer, allowing for left or right-hand orientation during installation.
3.2 Installation Steps
- Carefully place the sink into the prepared countertop opening.
- Secure the sink using the provided installation clips/fasteners according to the manufacturer's instructions.
- Install the 3 1/2" drain assembly into the sink bowl, ensuring a watertight seal.
- Connect the automatic stopper mechanism. This system is controlled by a button for convenience.
- Connect the plumbing to the drain assembly, including the hidden overflow.
- If installing a waste disposal unit, ensure it is compatible with the sink's design and follow the waste mill manufacturer's instructions for mounting.
- Once all connections are made, slowly turn on the water supply and check for any leaks.

Figure 1: Top-down view of the Franke Sirius S2D 611-78 XL Onyx Kitchen Sink, showcasing the single bowl, reversible drainer area, and drain assembly. The sink is made of Tectonite material in an onyx finish.
4. Operating Instructions
4.1 Using the Sink
The Franke Sirius S2D 611-78 XL sink is designed for daily kitchen tasks. Its large single bowl provides ample space for washing dishes and preparing food. The Tectonite material offers durability and resistance to common kitchen wear.
4.2 Automatic Stopper
Your sink is equipped with an automatic stopper for convenient water retention and drainage. To operate, locate the control button, typically positioned on the sink's edge or countertop. Pressing the button will open or close the drain stopper. This feature allows for hands-free control of the drain.
4.3 Waste Mill Compatibility
The sink is designed to allow for the mounting of a waste disposal unit (waste mill). If you choose to install a waste mill, ensure it is compatible with a 3 1/2" drain opening and follow the waste mill manufacturer's specific installation and operating instructions.
5. Maintenance and Care
Proper care will help maintain the appearance and extend the lifespan of your Franke Tectonite sink.
- Daily Cleaning: For routine cleaning, wipe the sink surface with a soft, dry cloth after each use to prevent water spots and mineral buildup.
- Stubborn Stains: For more stubborn stains, use a mild dish soap and a soft sponge. Rinse thoroughly with water and dry immediately.
- Avoid Abrasives: Do not use abrasive cleaners, scouring pads, steel wool, or harsh chemical cleaners (e.g., bleach, ammonia-based products) as these can damage the Tectonite finish.
- Heat Resistance: While Tectonite is heat resistant, it is recommended to use a trivet or hot pad for extremely hot pots and pans to prevent potential thermal shock or discoloration over time.
- Preventing Scratches: Although durable, avoid dragging heavy or sharp objects across the sink surface to minimize the risk of scratches.
6. Troubleshooting
This section addresses common issues you might encounter with your kitchen sink. For problems not listed here, please contact customer support.
- Slow Drainage:
Possible Cause: Blockage in the drain or P-trap.
Solution: Remove the drain stopper and clear any visible debris. If the issue persists, the P-trap may need to be cleaned. Consult a plumber if necessary.
- Leaks Around Drain:
Possible Cause: Improperly sealed drain assembly or loose connections.
Solution: Ensure all connections to the drain assembly are tight. The sealant around the drain flange may need to be reapplied. Turn off water supply before attempting repairs.
- Water Spots/Mineral Buildup:
Possible Cause: Hard water drying on the sink surface.
Solution: Wipe the sink dry after each use. For existing spots, use a solution of equal parts white vinegar and water, apply with a soft cloth, let sit for a few minutes, then rinse and dry.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Franke |
| Model Number | S2D 611-78 XL |
| Part Number | 143.0618.577 |
| Color | Onyx |
| Material | Granite (Tectonite) |
| External Dimensions (L x W) | 780 x 500 mm (30.71 x 19.69 inches) |
| Bowl Dimensions (L x W x D) | 440 x 432 x 200 mm (17.32 x 17.01 x 7.87 inches) |
| Number of Bowls | 1 (Single Bowl) |
| Cut-out Dimensions (L x W) | 764 x 484 mm |
| Minimum Substructure Width | 600 mm |
| Drain Size | 3 1/2" |
| Drainer Position | Reversible model |
| Installation Type | Built-in / Countertop |
| Features | Automatic stopper (button-controlled), Hidden overflow, Waste mill compatible |
| Item Weight | 22 pounds |
| Product Care | Wipe with Dry Cloth |
8. Warranty and Support
Franke products are manufactured to high-quality standards and come with a manufacturer's warranty. For specific warranty details, please refer to the warranty card included with your purchase or visit the official Franke website.
For technical assistance, spare parts, or further inquiries, please contact Franke customer support:
- Website: www.franke.com (Please check your regional Franke website for local contact information)
- Contact Information: Refer to the Franke website or your product packaging for the most up-to-date customer service contact details.





