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Figure 10 .7
6 Keep pressed the reset button D for about 10 seconds until
the lock-out signal lamp E blinks.
7 Connect the electrical connectors C of the c.h. temperature
probe NTC in Figure 10.7.
8 The lamps F should give the indication as in Figure 10.8 (use-
ful output, first step). If not, press the reset button repeatedly
to obtain it.
Where:
Figure 10 .8
At this step it is possible to visualize the current setting by keep-
ing the reset button D pressed for more than 5 seconds. The
lamps F will flash a number of times corresponding to the setting
Figure 10.9 (once for Riva Plus HE 24C ERP and four times for
Riva Plus HE 28C ERP).
Riva Plus HE 28C ERP
1 flash
Figure 10 .9
9 To change the setting turn the knob B on a position corre-
sponding to the boiler models (Figure 10.9). By turning the
knob B, the lock-out signal lamp E blinks quickly (2 per sec-
onds) indicating that the setting has changed and must be
memorised.
10 To memorize the setting keep pressed the reset button D for
about 5 seconds until the lights F briefly blinks simultane-
ously.
11 Press the reset button D once until the lamps F give the indi-
cation as in Figure 10.10 (useful output, second step).
Where:
Figure 10 .10
- 22 -
ELECTRONIC CONTROL/IGNITION P.C.B.
Lamp OFF
Lamp ON
Riva Plus HE 28C ERP
4 flashes
B
Lamp OFF
Lamp ON
At this step it is possible to visualize the current setting by keep-
ing the reset button D pressed for more than 5 seconds. The
lamps F will flash a number of times corresponding to the setting
Figure 10.11 (seven times for Riva Plus HE 24C ERP and Riva
Plus HE 28C ERP).
1
C
Figure 10 .11
12 To change the setting turn the knob B on a position corre-
sponding to the boiler model (Figure 10.11).
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.
13 To memorize the setting keep pressed the reset button D for
about 5 seconds until the lights F briefly blinks simultane-
ously.
14 To reset the boiler to the normal operation turn it OFF and ON
by the function selector knob A.
10 .7 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 selector knob A as
indicated in Figure 10.12.
F
Figure 10 .12
2 Keep pressed the reset button D for about 10 seconds until
the lock-out signal lamp E blinks.
3 The lamps F should give the indication as in Figure 10.13 (re-
ignition frequency). If not, press the reset button repeatedly
to obtain it.
Figure 10 .13
At this step it is possible to visualize the current setting by keep-
ing the reset button D pressed for more than 5 seconds. The
lamps F will flash a number of times corresponding to the setting
(Figure 10.14).
4 To change the setting turn the knob B on a position corre-
Riva Plus HE 24C ERP
Riva Plus HE 28C ERP
4
7 flashes
7
B
Setting No.
B
A
D
Where:
Lamp OFF
Lamp ON
E
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