1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Beretta FONTE Lx 11 gas water heater. Please read this manual thoroughly before installation and use, and keep it for future reference. Proper adherence to these instructions will ensure optimal performance and longevity of the appliance.
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.
- This appliance must be installed by a qualified professional in accordance with all local codes and regulations.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
- Ensure adequate ventilation for the appliance as it is an open chamber, natural draft type.
- Never obstruct the flue gas exhaust system.
- If you smell gas, immediately shut off the gas supply, open windows, and evacuate the premises. Do not operate any electrical switches or phones. Contact your gas supplier or a qualified service technician.
- Keep children away from the appliance.
3. Product Overview
The Beretta FONTE Lx 11 is an open chamber, natural draft gas water heater designed for domestic hot water production. It features electronic ignition via batteries, continuous flame modulation, and ionization flame control for reliable and efficient operation.
Front view of the Beretta FONTE Lx 11 gas water heater, showing its white casing, top flue connection, and a digital control panel with a temperature display and control buttons.
4. Specifications
| Feature | Specification |
|---|---|
| Model | FONTE Lx 11 |
| Type | Open Chamber, Natural Draft |
| Energy Efficiency Class (ErP) | A |
| Load Profile | M |
| Ignition | Electronic (2 x 1.5V batteries) |
| Flame Control | Ionization |
| Flame Modulation | Continuous |
| Hot Water Production (Δt=30°C) | 9.3 liters/min |
| Nominal Thermal Input (G20 / G30-G31) | 22.0 / 21.0 kW |
| Nominal Thermal Output (G20 / G30-G31) | 19.43 / 18.33 kW |
| Water Flow Range (Min Selector) | 2.5 to 5.5 liters/min |
| Water Flow Range (Max Selector) | 2.5 to 11 liters/min |
| Water Temperature Rise (Min Selector) | 50 °C |
| Water Temperature Rise (Max Selector) | 25 °C |
| Water Pressure (Min / Normal / Max) | 0.2 / 2 / 10 bar |
| Water Connection Diameter | 1/2" |
| Sanitary Water Temperature Selection Range | 35-60 °C |
| Nominal Methane Gas Supply Pressure (G20) | 20 mbar |
| Nominal LPG Supply Pressure (G30-G31) | 28 / 30 - 37 mbar |
| Gas Connection Diameter | 1/2" |
| Flue Gas Temperature (G20-G30-G31) | 190 / 188 / 187 °C |
| Gas Category | II2H3+ - I3B/P - II2H3B/P - II2E3P |
| Flue Exhaust Pipe Diameter | 110 mm |
| Dimensions (HxWxD) | 675 x 350 x 230 mm |
| Weight | 12 kg |
| Power Source | Natural Gas |
5. Installation (Setup)
Installation of the Beretta FONTE Lx 11 gas water heater must be performed by a qualified and certified technician. Incorrect installation can lead to serious hazards, including gas leaks, carbon monoxide poisoning, and fire.
5.1. Location Requirements
- Install in a well-ventilated area, as this is an open chamber appliance requiring natural draft.
- Ensure sufficient clearance around the unit for maintenance and proper air circulation.
- The appliance must be installed on a wall, capable of supporting its weight (12 kg).
5.2. Gas Connection
- Connect the gas supply to the 1/2" gas inlet.
- Ensure the gas type (Methane G20 or LPG G30-G31) matches the appliance's configuration and local supply.
- Verify all gas connections for leaks using an approved leak detection solution.
5.3. Water Connections
- Connect the cold water inlet and hot water outlet to the 1/2" water connections.
- Install shut-off valves on both cold and hot water lines for ease of maintenance.
- Flush the water lines before connecting to the appliance to remove any debris.
5.4. Flue Gas Exhaust
- Connect a 110 mm diameter flue pipe to the appliance's exhaust outlet.
- Ensure the flue system is correctly installed and sealed to prevent exhaust gas leakage into the living space.
- The flue must terminate outdoors in accordance with local regulations.
5.5. Battery Installation
- Open the battery compartment (refer to the appliance diagram for location).
- Insert two 1.5V batteries, ensuring correct polarity.
- Close the battery compartment securely.
6. Operation
Once installed and checked by a qualified technician, the Beretta FONTE Lx 11 is designed for user-friendly operation.
6.1. Initial Start-up
- Ensure the gas supply valve is open.
- Open a hot water tap. The appliance will automatically ignite.
- Observe the flame through the inspection window (if available) to confirm proper ignition.
6.2. Temperature Adjustment
- Use the control knob or buttons on the front panel to adjust the desired hot water temperature. The selectable range is typically 35-60 °C.
- The digital display will show the set temperature or the current water temperature.
6.3. Flow Rate Adjustment
- The appliance modulates the flame continuously based on water flow and desired temperature.
- The water flow selector (if present) allows for fine-tuning the flow rate, affecting the temperature rise.
6.4. Shutting Down
- To temporarily shut down, simply close all hot water taps. The appliance will enter standby mode.
- For extended periods of non-use or maintenance, close the main gas supply valve to the appliance.
7. Maintenance
Regular maintenance is crucial for the safe and efficient operation of your gas water heater. All maintenance should be performed by a qualified service technician.
7.1. Annual Inspection
- It is recommended to have the appliance inspected and serviced annually by a qualified technician.
- This inspection should include checking the burner, heat exchanger, flue system, gas connections, and safety devices.
7.2. Battery Replacement
- Replace the 1.5V batteries when the low battery indicator appears on the display or if the ignition becomes unreliable.
- Always use new, high-quality batteries of the specified type.
7.3. Cleaning
- Clean the exterior casing with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Ensure that the air intake and exhaust vents are free from obstructions.
8. Troubleshooting
Before contacting service, review the following common issues and solutions. For any persistent or serious problems, contact a qualified technician.
8.1. No Hot Water / Appliance Not Igniting
- Check Gas Supply: Ensure the main gas valve to the appliance is open.
- Check Water Flow: Ensure there is sufficient water flow when a hot water tap is opened.
- Check Batteries: Replace the 1.5V batteries if they are low or depleted.
- Flue Obstruction: Verify that the flue exhaust is not blocked.
8.2. Insufficient Hot Water Temperature
- Adjust Temperature Setting: Increase the set temperature on the control panel.
- Reduce Water Flow: If the water flow is too high, the appliance may not be able to heat it sufficiently. Reduce the flow at the tap.
8.3. Unusual Noises or Odors
- Gas Odor: Immediately shut off the gas supply, ventilate the area, and contact a qualified technician.
- Unusual Noises: Turn off the appliance and contact a qualified technician for inspection.
9. Warranty and Support
For warranty information, please refer to the documentation provided at the time of purchase or contact your retailer. For technical support, service, or spare parts, please contact Beretta customer service or an authorized service center. Always provide the model number (FONTE Lx 11) and serial number of your appliance when seeking support.
Manufacturer: BE RETTA
