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sponding to the desired delay.
By turning the knob B, the lock-out signal lamp E blinks quick-
ly (2 per seconds) indicating that the setting has changed and
must be memorised.
4
3
4
3
1 1/2
2
0
1
Figure 10 .14
5 To memorize the setting keep pressed the reset button D for
about 5 seconds until the lights F briefly blinks simultane-
ously.
6 To reset the boiler to the normal operation turn it OFF and
ON by the function selector knob A. In any case, the boiler
automatically resets to its normal operation after 10 minutes.
Factory setting = 3 minutes
10 .8 Ignition gas pressure adjustment
1 Turn the boiler OFF.
2 Remove the front panel of the case.
3 Open the gas valve outlet pressure test point (7, see section
11.2) and connect the gauge.
4 Turn the boiler ON positioning the function selector knob A
as indicated in Figure 10.15 and ensure that the timer se-
lector switch and room thermostat, if fitted, are set to "heat
demand".
Run the boiler in c.h. mode (do not open any d.h.w. tap).
F
B
Figure 10 .15
5 Keep pressed the reset button D for about 10 seconds until
the lock-out signal lamp E blinks.
6 The lamps F should give the indication as in Figure 10.16. If
not, press the reset button repeatedly to obtain it.
Where:
Figure 10 .16
7 Keep pressed the reset button D for about 5 seconds until the
lock-out signal lamp E is switched OFF.
The boiler runs in c.h. mode and the lamps F give the indica-
tion as in Figure 10.17.
ELECTRONIC CONTROL/IGNITION P.C.B.
5 1/2
5
7
6
7
8 1/2
B
Delay (minutes)
Setting No.
A
D
E
Lamp OFF
Lamp ON
Where:
Figure 10 .17
8 Rotate the knob B on a position corresponding to an ade-
quate ignition pressure.
Refer to the value indicated in the tables of the User/Installa-
tion manual (Technical information section, Gas pressures at
the burner table).
By rotating clockwise the pressure increases.
9 Make a note of the position of the knob B.
10 Turn the boiler OFF and ON positioning the function selector
knob A as indicated in Figure 10.18
F
B
Figure 10 .18
11 Keep pressed the reset button D for about 10 seconds until
the lock-out signal lamp E blinks.
12 Press the reset button D repeatedly (4 times) until the lamps
F give the indication as in Figure 10.19 (ignition pressure ad-
justment mode).
Where:
Figure 10 .19
13 Turn the knob B to the minimum (fully counterclockwise) and
then on the position corresponding to the position obtained
on step 8.
By turning the knob B, the lock-out signal lamp E blinks quick-
ly (2 per second) indicating that the setting has changed and
must be memorised.
14 To memorize the setting keep pressed the reset button D for
about 5 seconds until the lights F briefly blinks simultane-
ously.
15 To reset the boiler to the normal operation turn it OFF and ON
by the function selector knob A checking the ignition pressure
and that the burner lights up uniformly. In any case, the boiler
automatically resets to its normal operation after 10 minutes.
10 .9 Setting the d.h.w. flowmeter operation mode
When replacing the Electronic control/ignition p .c .b ., it must
be set for the correct operation of the d.h.w. flowmeter.
Note: the Electronic control/ignition p.c.b. spare part is fattory set
on mode 1.
For all the models covered by this manual:
1 Turn the boiler ON positioning the function selector knob A as
indicated in Figure 10.20.
2 Turn knob B as indicated in Figure 10.20.
Lamp OFF
Flashing lamp, alone
or simultaneously
with an other lamp.
A
D
E
Lamp OFF
Lamp ON
- 23 -
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