Key Features of Changeover Switch Modulating Dual Fuel Burners

• Designed for high output users & suitable for normal or pressurized combustion chamber and suitable for applications like steam boiler, thermic fluid heater, child chillers and hot air generator.
• Changeover switch for two fuels - light oil & gas for easy operation.
• A variable profile cam connects fuel and air setting, ensuring fuel efficiency at all firing rates.
• Burners are equipped with variable geometry combustion head this enables optimum combustion performance & ensure peak combustion efficiency, thus saving fuel consumption.
• A maximum gas pressure switch stops the burners in case of an excess of pressure in fuel line.
• The light oil circuit comes with its own electric motor, so the pump is stopped during gas operation to prevent pump seizure and to avoid oil in circulation.
• A pressure regulator on the return circuit from the nozzle enables the quantity of fuel burnt to be varied.
• Two safety valves on return circuit prevent oil leakage from nozzle when burner is in stand-by and in pre purge phase.
• Ventilation circuit comes with a forward blades centrifugal fan, which assures high pressure levels at the required air deliveries and permits installation flexibility.