Ferroli PEGASUS F2 N T Instructions For Use, Installation And Maintenance page 19

Pegasus F2 N T
Disassembly and cleaning the burner unit
to remove the burner unit:
• Disconnect the electrical power supply and turn off the gas ahead of the boiler.
• Extract the safety thermostat bulb (part 8 fi g. 19) from its housing sheath.
• Disconnect the power cable from the gas valve.
• Disconnect the piezoelectric igniter cable.
• Unscrew the nut fi xing the gas feed pipe ahead of the gas valve (fi g. 14). On model 102,
unscrew the 2 nuts.
• Unscrew the two nuts attaching the combustion chamber door to the cast iron elements of
the boiler (fi g. 15).
• Remove the burner assembly and combustion chamber door.
At this point, check and clean the burners. Only use a non-metallic brush or compressed air to clean
the burners and thermocouple; never use chemical products.
On completion, fi t it all back together in reverse order.
fi g. 14
fi g. 15
19