Reignition Frequency Setting; Ignition Gas Pressure Adjustment - Biasi RIVA COMPACT HE MK2 M96A.24SR/C Service Manual

Electronic control/ignition p.c.b.
four times for system boilers). At this point only the right
green light flashes.
1 flash
Fig. 16
10 Turn the water control to minimum. Lock ---out
lamp blinks (2 per second) indicating the setting
has changed
11 To change the setting turn the knob B on a posi-
tion corresponding to the boiler model (Fig. 16).
12 To memorize the setting keep pressed the reset
button D for about 5 seconds until the lights F
briefly blinks simultaneously. At this point only the
right green light flashes.
13 To reset the boiler to the normal operation turn it
OFF and ON by the function selector knob A.
8.8

Reignition frequency setting

It is possible to select the minimum time that must pass
between two ignitions of the burner in c.h. function
mode.
1 Turn the boiler ON positioning the function selec-
tor knob A as indicated in Fig. 17.
F B
Fig. 17
2 Keep pressed the reset button D for about 10 sec-
onds until the lock ---out signal lamp E blinks.
3 The lamps F should give the indication as in
Fig. 18 (reignition frequency). If not, press the
reset button repeatedly to obtain it.
Where:
Fig. 18
At this step it is possible to visualize the current setting
by keeping the reset button D pressed for more than 5
seconds. The lamps F will flash a number of times
corresponding to the setting (Fig. 19).
4 To change the setting turn the knob B on a posi-
tion corresponding to the desired delay.
18
M96A.24SR/...
M96A.28SR/...
4 flashes
B
A D E
Lamp OFF
Lamp ON
By turning the knob B, the lock ---out signal lamp
E blinks quickly (2 per seconds) indicating that
the setting has changed and must be memo-
rised.
3
3
1 1/2
2
0
1
Fig. 19
5 To memorize the setting keep pressed the reset
button D for about 5 seconds until the lights F
briefly blinks simultaneously.
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 nor-
mal operation after 10 minutes.
Factory setting = 3minutes
8.9

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 9.2) and connect the gauge.
4 Turn the boiler ON positioning the function selec-
tor knob A as indicated in Fig. 20 (M96A.24SR/...,
M96A.28SR/...) and ensure that the timer selector
switch and room thermostat, if fitted, are set to
"heat demand".
Run the boiler in c.h. mode.
F B
Fig. 20
5 Keep pressed the reset button D for about 10 sec-
onds until the lock ---out signal lamp E blinks.
6 The lamps F should give the indication as in
Fig. 21. If not, press the reset button repeatedly
to obtain it.
Where:
Fig. 21
7 Keep pressed the reset button D for about 5 sec-
onds until the lock ---out signal lamp E is switched
4
5 1/2
4
5
7
6
7
8 1/2
B
Delay (minutes)
Setting No.
A
D E
Lamp OFF
Lamp ON