Gas Conversion - Biasi RIVA COMPACT M90E.24S Service Manual

Electronic starting control p.c.b.
5 Keep pressed the reset button C for about 10 sec-
onds until the lock ---out signal lamp D blinks.
Fig. 17
6 The lamps E should give the indication as in
Fig. 17 --- Fig. 18. If not, press the reset button re-
peatedly to obtain it.
Where:
Fig. 18
7 Keep pressed the reset button C for about 5 sec-
onds until the lock ---out signal lamp D is switched
OFF.
The boiler runs in c.h. mode and the lamps E give
the indication as in Fig. 19.
Where:
Fig. 19
8 Rotate the knob B to obtain the pressure to the
burner to meet with the central heating system re-
quirements.
Refer to diagrams indicated in the tables of the
User/Installation manual (Commissioning sec-
tion, Adiustment of useful c.h. output).
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 func-
tion selector knob A as indicated in Fig. 20
E B
Fig. 20
11 Keep pressed the reset button C for about 10 sec-
onds until the lock ---out signal lamp D blinks.
18
ON
LD1 LD2 LD3
E
Lamp OFF
Lamp ON
Lamp OFF
Flashing lamp, alone
or simultaneously
with an other lamp.
A C D
12 Press the reset button C repeatedly (2 times) until
the lamps E give the indication as in Fig. 21 (use-
ful c.h. output adjustment mode).
Where:
Fig. 21
13 Turn the knob B to the minimum (fully counter-
clockwise) and then on the position correspon-
ding to the position obtained on step 8.
By turning the knob B, the lock ---out signal lamp
D blinks quickly (2 per second) indicating that the
setting has changed and must be memorised.
14 To memorize the setting keep pressed the reset
button C for about 5 seconds until the lights E
briefly blinks simultaneously.
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.
9.9

Gas conversion

Refere to User/Installation manual (Gas conversion
section, Procedures)
1 Turn the boiler OFF positioning the function selec-
tor knob A as indicated in Fig. 22.
E B
Fig. 22
2 Remove the front panel of the case.
3 Disconnect the C.h. temperature probe NTC
(Fig. 23)
Fig. 23
4 Keep pressed the reset button C for about 10 sec-
onds until the lock ---out signal lamp D blinks.
Lamp OFF
Lamp ON
A C D