13
When changing to a gas different from the one for which the boiler is equipped, you should replace the parts supplied with the
conversion kit and adjust the gas valve in accordance with the method described below.
Adjusting the nominal output
• remove the protective cap from the adjusting
screws (fig. 16).
• remove screw 2 and fit a tube connected to a
pressure gaugeto the pressure connection point
(fig. 16).
• start the boiler at maximum output (hot water tap
on full) and maximum temperature setting.
• turn nut 3 using an 8-mm open-ended spanner
(fig. 17) while holding screw 4 still and adjust the
pressure to the value shown in the table
“nominal output table.”
Adjusting the minimum output
• disconnect a variable solenoid valve power
supply cable (fig. 18)
• turn screw 4 using a 5-mm open-ended spanner
while holding nut 3 (fig. 18) and adjust the
pressure to the value shown in the table
“minimum output table.”
• when the adjustment is finished, refit screw 2
and test for leaks.
• put the protective cap back on the adjustment
screws.
Adjusting the lighting power (only in FF)
The potentiometer P2 (fig. 14) on the printed circuit
is used for this adjustment
(12,7 kW - 24 FF / 16 kW - 30 FF)
(see tables page 11)
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