Introduction
This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of the Geberit Duofix Frame with Sigma Flush Cistern, model 111.791.00.1. Please read these instructions carefully before beginning installation or use to ensure proper function and safety. Keep this manual for future reference.
Safety Information
- Professional Installation Recommended: Installation of this product requires plumbing and construction knowledge. It is highly recommended that installation be performed by a qualified professional.
- Water Supply: Ensure the main water supply is turned off before commencing any installation or maintenance work.
- Tools: Use appropriate tools for installation. Incorrect tools can damage the product or cause injury.
- Weight Bearing: The frame is designed to support a wall-mounted toilet. Ensure all fixings are secure and correctly installed to bear the intended load.
- Material Handling: Be aware of the weight of components. Lift heavy parts carefully to prevent injury.
Product Overview
The Geberit Duofix Frame with Sigma Flush Cistern 111.791.00.1 is a robust pre-wall installation system designed for wall-mounted toilets. It features a self-supporting frame, an 8 cm Sigma concealed cistern, and a PVC drain elbow. This system is engineered for reliable performance and space-saving installation within drywalls or pre-wall constructions.
Image 1: Geberit Duofix Frame with Sigma Flush Cistern. This image shows the complete frame assembly with the concealed cistern, water inlet, and drain connections.
Image 2: Geberit Duofix Frame Line Drawing. This technical drawing illustrates the internal components and connections of the Duofix frame and cistern.
Key Components:
- Duofix Frame: Self-supporting, powder-coated steel frame for secure mounting.
- Sigma Flush Cistern (8 cm): Concealed cistern with dual-flush capability, designed for narrow installations.
- PVC Drain Elbow: Connects the toilet to the waste pipe.
- Water Supply Connection: Inlet for connecting to the main water supply.
- Mounting Brackets: For securing the frame to the floor and wall.
Setup and Installation
The Geberit Duofix Frame is designed for installation in front of a solid wall or within a drywall construction. Accurate measurements and secure fixings are crucial for stability and proper function.
Pre-Installation Checks:
- Verify that all components listed in the packaging are present and undamaged.
- Ensure the installation area has adequate space and structural integrity to support the frame and a wall-mounted toilet.
- Confirm the location of water supply and waste connections.
Installation Steps (General Overview):
- Positioning the Frame: Place the Duofix frame in the desired location. Adjust the height of the frame legs to achieve the correct toilet pan height (typically 400mm from finished floor level to the top of the pan).
- Securing the Frame: Fix the frame securely to the floor and the wall using the provided mounting brackets and appropriate fasteners for your wall type. Ensure the frame is level and plumb.
- Water Connection: Connect the water supply to the cistern inlet valve. Use appropriate plumbing fittings and ensure all connections are watertight.
- Drain Connection: Install the PVC drain elbow and connect it to the building's waste pipe. Ensure a proper seal and correct gradient for drainage.
- Cistern Testing: Before closing the wall, fill the cistern and check for any leaks. Operate the flush mechanism to ensure it functions correctly.
- Wall Cladding: Once the frame and connections are secure and tested, clad the frame with appropriate drywall or other construction material, leaving access for the flush plate and toilet connections.
- Toilet Installation: Mount the wall-hung toilet pan onto the threaded rods of the frame and connect the flush and waste pipes.
Image 3: Geberit Duofix Frame Side Dimensions. This diagram shows the side view with critical dimensions for installation, including the minimum wall thickness and toilet projection.
Image 4: Geberit Duofix Frame Front Dimensions. This diagram provides front view dimensions, including the width of the frame and the positioning of the cistern and connections.
Operating Instructions
The Geberit Sigma Flush Cistern operates with a dual-flush mechanism, allowing for water-saving options.
Flushing:
- Full Flush: Press the larger button on the flush plate for a full flush (typically 6 liters).
- Reduced Flush: Press the smaller button on the flush plate for a reduced flush (typically 3 liters).
The flush volume can be adjusted internally by a qualified technician if necessary, according to local regulations and user preference.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your Geberit Duofix system.
Cleaning:
- Clean the flush plate and visible parts of the toilet with a mild, non-abrasive cleaner and a soft cloth.
- Avoid using harsh chemicals, abrasive pads, or strong acids, as these can damage the surface finishes.
Internal Components:
- The internal components of the cistern are designed for long-term reliability. However, in areas with hard water, limescale buildup may occur over time.
- If flushing issues arise, the cistern mechanism may need inspection. Access to the cistern is typically gained by removing the flush plate. This procedure should ideally be performed by a qualified plumber.
- Periodically check for any signs of leaks around the toilet or within the wall. Address any leaks immediately to prevent water damage.
Troubleshooting
Below are common issues and their potential solutions. For complex problems, contact a qualified plumber.
| Problem | Possible Cause | Solution |
|---|---|---|
| Water continuously runs into the toilet bowl. | Faulty flush valve seal or inlet valve. | Turn off water supply. Remove flush plate and inspect the flush valve and inlet valve. Clean or replace seals/components as needed. |
| Weak or incomplete flush. | Low water level in cistern, partially blocked flush valve, or issues with the toilet pan itself. | Check water level in cistern (should be at the marked line). Inspect flush valve for obstructions. Ensure the toilet pan's rim jets are clear. |
| Flush plate not activating flush. | Actuator rods disconnected or broken. | Remove flush plate and reattach or replace actuator rods. |
| Water leaking from behind the wall. | Loose or damaged water supply connection, cistern crack, or faulty drain connection. | Immediately turn off the main water supply. Contact a qualified plumber to diagnose and repair the leak. Access to the cistern may require opening the wall. |
Specifications
The following specifications apply to the Geberit Duofix Frame with Sigma Flush Cistern 111.791.00.1:
- Model Number: 111.791.00.1
- Brand: Geberit
- Cistern Type: Sigma Flush Cistern (8 cm)
- Installation Type: Pre-wall / Drywall construction for wall-mounted toilet
- Frame Material: Steel (powder-coated)
- Drain Elbow Material: Polyvinyl Chloride (PVC)
- Color: Gray (frame)
- Product Dimensions (approx.): 47.24 x 5.71 x 21.26 inches (120 x 14.5 x 54 cm)
- Item Weight: 35.2 pounds (16 Kilograms)
- Number of Pieces: 1 (complete frame and cistern unit)
- Batteries Required: No
Warranty Information
Geberit products are manufactured to high-quality standards. For specific warranty terms and conditions applicable to the Geberit Duofix Frame with Sigma Flush Cistern 111.791.00.1, please refer to the warranty documentation provided with your purchase or visit the official Geberit website. Keep your proof of purchase for any warranty claims.
Support
If you require further assistance, have questions regarding installation, or need to order replacement parts, please contact Geberit customer support. Contact details can typically be found on the official Geberit website or in the packaging materials.