Checks; Removal Of The Gas Valve - Biasi RINNOVA ADAPTIVE M300V.2025 SM Service Manual

5 To enter in the parameters setting mode press at the same
time the 2 keys "H" and "J" (Figure 11.9) and hold in for 5
second until the display shows Figure 11.10.
Figure 11 .10
6 Scroll the various menus using keys "H" or "J" (Figure 11.9)
until CAF appears on the LCD display (Figure 11.11).
Figure 11 .11
7 Press the key "I" (Figure 11.9) until the StF (Start Full), alter-
nating with 34 (calibration value), appears on the LCD display
(Figure 11.12).
Figure 11 .12
8 Allow the program to perform the entire process, at the end
of which FuF (Full Finish) will be displayed (Figure 11.13).
Figure 11 .13
9 To exit the parameters menu.
• wait 15 minutes without pressing any key;
• switch off the electric power supply;
• press the "H" and "J" keys simultaneously for 5 seconds (Fig-
ure 11.9) (return to previous level).

11 .5 Checks

Warning: isolate the boiler from the mains electrici-
ty supply before removing any covering or compo-
nent .
Check the on-off operators coils
1 Remove the front panel of the case.
2 Disconnect the electrical connector "C" (Figure 11.2).
3 Measure the electrical resistance between the connector pins
of the on-off operators as illustrated in Figure 11.14.
GAS VALVE
Figure 11 .14

11 .6 Removal of the gas valve

Warning: isolate the boiler from the mains electrici-
ty supply before removing any covering or compo-
nent .
1 Remove the front panel of the case as explained in the sec-
tion "2.3 Control panel" on page 5, of this manual.
2 Disconnect the connector "L" (Figure 11.15), see also con-
nector "C" (Figure 11.2).
Figure 11 .15
3 Turn off the gas supply and disconnect the gas isolation cock
connector from the inlet port of the gas valve.
4 Unscrew the connector "N" (Figure 11.15) and remove the
pipe "K".
5 Unscrew the screws "M" and remove the valve (Figure 11.15).
6 Reassemble the valve carrying out the removal operations in
reverse order.
Warning: Be careful not to damage the OR gasket of
the gas pipe when inserting the pipe in the air box
(air/gas mixer) .
Before fitting a new valve, it is advisable to preset it as fol-
lows .
Pin 1 and 3 = 25 Ohm *
Pin 2 and 4 = 65 Ohm *
*at ambient temperature.
K
N
L
M
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