Fondital TAHITI CONDENSING IST 03 C 298 - 02, Инструкция по эксплуатации

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3.7. Adapting to other gases and regulating the burner
This boiler is built to run on the type of gas specified on the order, which is shown on the packaging and on the boiler rating
plate.
If you wish to switch to another type of gas, this must be done by a qualified technician using the accessories supplied by the
manufacturer. He will make the necessary modifications and adjustments to ensure efficient operation of the boiler.
3.7.1. Switching from METHANE to PROPANE
• Open the boiler front panel, as described in par. 3.2.7.1.
• unscrew the outlet connection to the gas valve (
A
in fig. 26);
• replace the diaphragm in the relevant seating, with the one for
PROPANE (see tables 3, 4, 5, 6, 7 and 8).
• re-connect the outlet connection to the gas valve (
A
in fig. 26);
• see par. 3.7.3.
3.7.2. Switching from PROPANE to METHANE
• Open the boiler front panel, as described in par. 3.2.7.1.
• unscrew the outlet connection to the gas valve (
A
in fig. 26);
• replace the diaphragm in the relevant seating, with the one for
METHANE (see tables 3, 4, 5, 6, 7 and 8).
• re-connect the outlet connection to the gas valve ( A in fig. 26);
• see par. 3.7.3.
3.7.3. Burner adjustment
Maximum heating output adjustment
• set max heating output adjuster
max
(fig. 18) to MAXIMUM
(turn it fully clockwise); the LCD will display the desired
maximum heating output, in percentage with respect to the
boiler available max heating output.
• position selector
2
(fig. 1) to WINTER;
• verify the optional room thermostat (when available) to be set
to ON;
• start “chimney sweep” boiler mode (see paragraph 3.2.7.1);
• adjust CO
2
in flue gas by t urning ratio adjuster B (fig. 27) and
verify CO
2
value to be within the range stated in table 17;
• allow boiler to keep operating in chimney sweep mode and go
to the following point;
Minimum heating output adjustment
• set max heating output adjuster
max
(fig. 18) to MINIMUM
(turn it fully counter-clockwise); the LCD will display the desired
maximum heating output, in percentage with respect to the
boiler available max heating output.
• adjust CO
2
in flue gas by turning offset adjuster
C
(fig. 27) and
verify CO
2
value to be within the range stated in table 17;
• to end the chimney-sweep function, set selector
2
on a position
other than WINTER and then to the desired position.
CO2
Fuel CO
2
Methane 8.8 ÷ 9.1
Propane 9.8 ÷ 10.1
Table 17 – CO
2
rates
fig. 26
fig. 27