1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your CLIVET Gas Boiler FE 24.4. Please read this manual thoroughly before attempting any installation or operation. Keep this manual in a safe place for future reference.
The CLIVET Gas Boiler FE 24.4 is designed to provide reliable heating and hot water for residential applications. Proper installation and regular maintenance are crucial for optimal performance and longevity.
2. Safety Information
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.
- Installation and service must be performed by a qualified installer, service agency, or gas supplier.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
- Ensure adequate ventilation in the installation area.
- Never block air vents or exhaust flues.
- If you smell gas, immediately shut off the gas supply, open windows, and evacuate the building. Do not operate electrical switches or phones. Contact your gas supplier or fire department.
3. Product Overview
The CLIVET Gas Boiler FE 24.4 is a compact and efficient gas boiler. It features a robust design suitable for various heating requirements.

Figure 1: Front view of the CLIVET Gas Boiler FE 24.4. This image shows the compact design and main casing of the boiler unit.
Components
- Main Control Panel
- Water Inlet/Outlet Connections
- Gas Inlet
- Flue Gas Outlet
- Pressure Gauge
4. Installation and Setup
IMPORTANT: Installation must be carried out by a certified professional in accordance with all local and national regulations and standards.
4.1 Pre-Installation Checks
- Verify that the boiler model matches the installation requirements.
- Ensure the installation site has adequate space, ventilation, and structural support.
- Check gas supply pressure and water quality.
4.2 Mounting the Boiler
- Select a suitable wall location, ensuring it is level and capable of supporting the boiler's weight (approximately 34 kg).
- Mark drilling points using the provided template (if applicable).
- Securely mount the boiler to the wall using appropriate fasteners.
4.3 Connecting Utilities
- Gas Connection: Connect the gas supply line to the boiler's gas inlet. Ensure all connections are leak-free and tested.
- Water Connections: Connect the heating system flow and return pipes, and domestic hot water pipes (if applicable). Install isolation valves.
- Flue System: Install the flue system according to manufacturer instructions and local regulations to ensure proper exhaust of combustion gases.
- Electrical Connection: Connect the boiler to the electrical supply as per wiring diagrams, ensuring proper grounding.
5. Operating Instructions
Once installed by a qualified professional, operating the CLIVET Gas Boiler FE 24.4 is straightforward.
5.1 Initial Start-up
- Ensure all gas and water valves are open.
- Check the system pressure on the boiler's pressure gauge. It should be within the recommended range (typically 1.0 - 1.5 bar).
- Switch on the electrical supply to the boiler.
- Follow the specific start-up sequence outlined on the boiler's control panel or in the detailed technical manual.
5.2 Adjusting Temperature
Use the control panel knobs or buttons to set the desired heating and domestic hot water temperatures. Refer to the control panel diagram for specific functions.
5.3 Shutting Down the Boiler
- For temporary shutdown, turn the boiler off via the control panel.
- For extended periods (e.g., summer), it is recommended to turn off the electrical supply and close the gas isolation valve.
- For complete system drainage or maintenance, consult a professional.
6. Maintenance
Regular maintenance ensures the safe and efficient operation of your CLIVET Gas Boiler FE 24.4. Annual servicing by a qualified technician is highly recommended.
6.1 User Maintenance (Monthly/Quarterly)
- Check System Pressure: Monitor the pressure gauge. If the pressure is consistently too low, the system may need topping up or there might be a leak. Consult a technician if frequent topping up is required.
- Visual Inspection: Check for any visible leaks, corrosion, or unusual noises.
- Clean Exterior: Wipe the boiler's exterior with a damp cloth. Do not use abrasive cleaners.
6.2 Professional Annual Service
A qualified technician should perform the following checks annually:
- Flue gas analysis to ensure efficient combustion.
- Inspection and cleaning of the heat exchanger.
- Checking and adjusting gas pressure.
- Inspection of all safety devices.
- Checking for water leaks and corrosion.
- Testing of controls and electrical connections.
7. Troubleshooting
This section provides solutions to common issues. For complex problems, always contact a qualified service technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| Boiler not firing up | No gas supply, no electrical supply, low system pressure, thermostat setting too low. | Check gas valve, check power supply, check system pressure and top up if necessary, increase thermostat setting. |
| Low system pressure | Water leak, system needs topping up. | Top up system pressure using the filling loop. If pressure drops frequently, check for leaks or contact a technician. |
| No hot water | Boiler in heating-only mode, diverter valve fault, flow sensor issue. | Check boiler mode settings. If problem persists, contact a qualified technician. |
| Unusual noises | Air in system, pump issue, limescale build-up. | Bleed radiators to remove air. If noises continue, contact a qualified technician. |
8. Specifications
Technical specifications for the CLIVET Gas Boiler FE 24.4:
- Model: FE 24.4
- Manufacturer: CLIVET
- Product Dimensions: 73 x 43 x 28 cm
- Item Weight: 34 Kilograms
- ASIN: B0DGQT2Q24
- First Available Date: September 11, 2024
9. Warranty and Support
For warranty information, please refer to the documentation provided at the time of purchase or contact your supplier. For technical support or service, please contact a qualified CLIVET service partner or your installer.
Always ensure that any service or repair work is carried out by authorized personnel using genuine CLIVET spare parts.





