Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your Cornat Premium 4 Toilet Seat. Please read these instructions carefully before installation and retain them for future reference.

Image: Top-down view of the Cornat Premium 4 Toilet Seat, showcasing its clean, white design and integrated hinges.
Specifications
| Model | KSPREMSC400 |
| Brand | Cornat |
| Material | Duroplast |
| Color | White |
| Dimensions (L x W) | 17.05 inches x 14.33 inches (approx. 43.3 cm x 36.4 cm) |
| Features | Slow-close mechanism, Quick-Up removable for cleaning, Rust-free stainless steel hinges, Easy top mounting, Universal fit. |

Image: Technical drawing illustrating the dimensions of the Cornat Premium 4 Toilet Seat, including length, width, and hinge spacing.
Setup and Installation
Package Contents:
- Cornat Premium 4 Toilet Seat (Lid and Ring)
- Mounting hardware (rust-free stainless steel hinges, screws, washers, nuts)
- 2 cover pads
- 4 ring buffers
Tools Required:
- Screwdriver (appropriate for mounting screws)
- Measuring tape (optional, for fit verification)
Installation Steps (Easy Mounting from Above):
- Prepare the Toilet Bowl: Ensure the toilet bowl is clean and dry where the seat will be installed. Remove any old toilet seat and mounting hardware.
- Insert Mounting Posts: Place the mounting posts (hinges) into the holes on the toilet bowl. Ensure the rubber gaskets are correctly positioned to prevent movement.
- Secure Mounting Posts: From above, insert the screws through the hinge bases and tighten them. The design allows for easy tightening without needing access from underneath the bowl. Do not overtighten.
- Attach Toilet Seat: Align the toilet seat's hinge receivers with the secured mounting posts. Gently press down until the seat clicks into place.
- Verify Fit: Check that the seat is centered and stable. Adjust the mounting posts if necessary before fully tightening.

Image: Illustration of the "Montage von oben" (mounting from above) feature, showing how the hinges are secured directly from the top of the toilet bowl.
Operating Instructions
Slow-Close Mechanism:
The Cornat Premium 4 Toilet Seat is equipped with an integrated slow-close mechanism. To close the seat or lid, simply push it gently downwards. The mechanism will engage, allowing the seat and lid to lower softly and silently without slamming.

Image: Visual representation of the "Absenkautomatik" (slow-close mechanism), depicting the toilet seat and lid gently lowering.
Care and Maintenance
Regular Cleaning:
Clean the toilet seat regularly with mild soap and water. Use a soft cloth or sponge. Avoid abrasive cleaners, harsh chemicals, or scouring pads, as these can damage the Duroplast surface and the stainless steel hinges.
Quick-Up Removable Feature for Thorough Cleaning:
For thorough cleaning of the toilet bowl and the seat itself, the Cornat Premium 4 features a "Quick-Up" removal function:
- Lift the Seat: Lift the toilet seat and lid to an upright position.
- Press Release Buttons: Locate the release buttons or levers near the hinges (often on the underside or side of the hinge covers). Press these buttons simultaneously.
- Lift Off: While holding the buttons, gently lift the entire toilet seat assembly straight up from the mounting posts.
- Clean: Clean the toilet seat and the exposed mounting posts and toilet bowl area.
- Reattach: Align the seat's hinge receivers with the mounting posts and press down firmly until it clicks back into place. Ensure it is securely fastened before use.

Image: Step-by-step visual guide demonstrating the "Quick Up & Clean" function, showing how to detach the toilet seat from its hinges for easy cleaning and reattachment.
Antibacterial Properties:
The Duroplast material of the Cornat Premium 4 Toilet Seat is designed to be antibacterial, contributing to a hygienic bathroom environment. Regular cleaning as described above will maintain these properties.

Image: A clean bathroom setting featuring the Cornat toilet seat, emphasizing its antibacterial material for enhanced hygiene.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Seat is loose or wobbly. | Mounting screws are not tight enough. | Remove the seat using the Quick-Up function. Tighten the mounting screws firmly from above. Reattach the seat. |
| Slow-close mechanism not working properly. | Hinges are dirty or damaged. | Remove the seat and clean the hinges thoroughly. If still not working, inspect for damage. Contact customer support if damaged. |
| Seat does not fit the toilet bowl. | Toilet bowl dimensions are incompatible. | Verify your toilet bowl dimensions against the product specifications (17.05"L x 14.33"W). This seat is designed for universal fit, but extreme variations may occur. |
Warranty and Support
For warranty information or technical support, please refer to the official Cornat website or contact your retailer. Keep your proof of purchase for warranty claims.
Contact Information:
- Brand: Cornat
- Manufacturer: CORNAT
- Website: www.cornat.de (Note: This is a placeholder link, please refer to official product documentation for correct support channels.)