ENG - Manual of installation, use and maintenance.
210-0352_libretto_WHC_ATI_eng.docx
21
Jan-19
At the first ignition it is necessary to check the CO
2
values at
the flue gas outlet (the correct values are given in the table
above): If the CO2 value (%) read differs from the values given
in the table, it is necessary to adjust the gas valve by means of
the screws of the maximum and minimum power, which are
placed on the gas valve. In case of conversion to another gas
type and / or change of the flue / air ducts, it is necessary to
repeat the adjustment of the CO
2
values for the new type of
plant.
THE GAS VALVE CAN BE ADJUSTED THROUGH THE SPECIAL
HOLE, See picture below:
Verify that the flue exhaust and air intake ducts are free from obstructions.
A reduction of the air flow, due to an accidental obstruction of the air or flue duct, will result in a reduction in the gas flow till
the turning off of the burner, in favour of a safe use.
To check the correct combustion, it is necessary to make an
analysis using an appropriate flue gas analyzer (the same that
is used to measure the combustion in accordance with the
UNI 10389 standard). It is necessary to set the analyzer
according to the CO2 volumetric percentage of the type of gas
used.
Use the suitable inspection plugs placed on the coaxial flue
adapter, to adjust the gas valve.
