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NATURAL GAS IGNITION AND REGULA-
TION
• Bleed out the air contained in the gas piping, with due precau-
tions and with doors and windows open.
• Open the union on the pipe near the burner and then open the
shut-off valves a little.
Wait until you smell gas, and then close the valve.
• Wait the time necessary for the gas in the room to disperse
outside. Re-connect the burner to the gas pipeline.
• Check that there is water in the boiler and that the gate valves
of the system are open.
• Check that the discharge of combustion products through the
boiler gate and flue gate take places freely.
• Check that thee voltage on the mains meets the manufacturer
requirements and that all electrical connections made at the in-
stallation site are performed properly as illustrated in our wiring
diagram.
• Make sure that the combustion head is long enough to enter
the furnace following the measure specified by the boiler ma-
nufacturer.
• Check that the air regulation device on the combustion head is
in the correct position to deliver the required fuel.
• The air passage between disk and combustion head must be
considerably reduced with minimum fuel delivery.
• Increase combustion air flow when fuel delivery increases.
• Refer to chapter "Air adjustment on the combustion head".
• Fit a pressure gauge of appropriate scale to the pressure intake
on the gas pressure switch (if the amount of pressure to be used
allows it, we recommend to use a water column instrument; do
not use instruments with indicator pointers for low pressures).
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1
ON / OFF main switch.
2
Thermostatic line switch
3
Display
4
Unlock or RESET button
5
Fuse.
9
Fuel fill button
10 Fuel selector switch
11 Programming keypad
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ENGLISH
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