Starting Up The Boiler - PENSOTTI PCH 18 Instruction Manual

4.5 Starting up the boiler

Once the system has been filled, proceed as
follows:
Check that the exhaust flue is free of
obstructions 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
2.7 "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 symbols
will light up (fixed light) to indicate that
the boiler is working;
The automatic ignition system will then light the
burner. This operation is repeated for 3 times.
It may however be necessary to repeat the
operation in order to eliminate all the air from
the pipes. To repeat the operation, wait
approximately three
attempting to light the boiler. To reset the boiler
Switch off switch 1 (see 2.7 "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 repeated until
all the air has been removed;
Check the pressure in the system. If the
pressure has fallen, re-open the filling tap until
the code H2O disappears on the display and
the pressure gauge reads 1 bar on completion,
close the filling tap;
Unscrew the aluminium plug and insert an
analyser in the exhaust sampling point PF (see
fig. 1, air intake manifold is missing to get
visible V screw) to check the CO2 value. Make
sure that the value complies with that reported
in table 1;
If the CO2 value does not correspond to the
specified value, adjust screw V (see fig. 1) on
the venturi clockwise to reduce the CO2 value
or counter-clockwise to increase it
INSTALLATION INSTRUCTIONS
minutes before re-
;
Table n°1
Gas type
Methane - G20
Liquid Propane Gas - G 31
Fig. 1
25
CO %
2
9.1
10.1
PF
V