37
5.5 Starting Up The Boiler
Once the system has been
fi
lled, proceed as
follows:
●
Check that the exhaust
fl
ue is free of ob-
structions and correctly connected to the
boiler;
●
Switch on the power supply to the boiler;
●
Open the gas isolation valve;
●
Place switch
1
in the ON
position
(see 3.7
“Control Panel”), after a few seconds the
circulating pump will start to run;
●
Use button
6
to set the SUMMER, WINTER
or SUMMER/WINTER function. The sym-
bols
will light up (
fi
xed light) to indi
cate that the boiler is working;
●
The automatic ignition system will then light
the burner. This operation is repeated for 2
times. It may however be necessary to re-
peat the operation in order to eliminate all
the air from the pipes. To repeat the opera-
tion, wait approximately three minutes be-
fore reattempting to light the boiler. To re-
set the boiler Switch off switch
1
(see 3.7
“Control Panel”) and switch it back on again
and repeat the lighting procedure;
●
With the boiler ignited, if the system still
emits noises, the operations must be re-
peated until all the air has been removed;
●
Check the pressure in the system. If the
pressure has fallen, re-open the
fi
lling tap
until the code H2O
disappears on the dis-
play
and the pressure gauge reads 1 bar on
completion, close the
fi
lling tap.
●
Unscrew the aluminium plug and insert an
analyser in the exhaust sampling point
PF
(see
fi
g. 13) to check the CO2 value. Make
sure that the value complies with that re-
ported in table 1;
●
If the CO2 value does not correspond to the
speci
fi
ed value, adjust screw
V
(see
fi
g. 13)
on the venturi clockwise to reduce the CO2
value or anticlockwise to increase it
Table n°1
SRD 20
SRD 27
SRD 36
Gas type
CO2 %
Methane - G20
9.1
9.4
9.18
Liquid Butan Gas - G 30
11.1
10.9
10.3
Liquid Propane Gas - G 31
10.1
10.96
10.3
V
PF
Fig. 1
13
