25
MANOMETER
It shows the water pressure inside the
heating circuit, whose value, in cold
condition,should not be lower than 0,8/1 bar.
Note that if the pressure decreases below
0,4/0,6 bar the boiler goes into lockout, not
allowing the ignition of the burner.
In this case reinstate the minimum required
filling pressure (0,8/1 bar)following the
instructions given on
figure 12.
POWER ON SIGNAL LAMP
The function of this GREEN lamp is to show
that the power to the boiler is ON; to get the
boiler ON, position the "A" switch on
"
I
"
position.
.
BURNER IN OPERATION
SIGNAL LAMP
The function of this GREEN lamp is to show
the proper operation of the burner
FAULT INDICATION LAMPE
The function of this RED lamp is to show an
operation fault.
By depressing on the RESET button (N) it is
possible to see the error code given by the
combination od the flashing leds. See
paragrapf 2.8 "FAULT FINDING AND
REPARATIONS".
BURNER LOCKOUT
WARNING LAMP
La fonction de ce témoin (ROUGE) est de
signaler l’intervention du dispositif de mise
en sécurité du brûleur.
MANUAL RESET BUTTON
This button allows the re-establishment of
the boiler operation after a lockout of the
burner control and to know the error code
given by the combination of the flashing leds
(burner lockout warning lamp). (témoin de
défaut allumé).
SPECIAL FUNCTIONS BUTTON
(FOR SERVICE PURPOSES)
This button allows the activation of the
SERVICE mode. (see paragraphe 2.6
"Burner adjustment). To reset this mode
before the expiring time depress on the
manual reset button.
WARNING!
OPÉRATIONS RÉSERVÉD
ONLY TO SERVICE TECHNICIANS.
SPECIAL FUNCTIONS LAMP
(FOR SERVICE PURPOSES)
The function of this GREEN LAMP is to
indicate the activation of the SERVICE mode:
Continuous ON led = Max output for 15 min.
Flashing led = Minimum output for 15 min.
OUTER TEMPERATURE
SELECTOR (OPERATIONAL
ONLY IF OUTER SENSOR IS FITTED
Si the kit outer sensor is fitted, it is possible,
through this button, to set an outer
temperature value between
-20°C
(completely counterclockwise
) and
10°C
(
completely clockwise)
.
If the outer temperature is equal or lower
than the one selected by the selector "Q"
the boiler temperature will be the one adjusted
on the "C" button.
If the outer temperature is higher than the
one selected by the selector "Q"the boiler
temperature will decrease linearly,
independently from the one adjusted on the
"C" button.
WARNING!
OPÉRATIONS RÉSERVÉD
ONLY TO SERVICE TECHNICIANS.
MODULATING ROOM
THERMOSTAT
Warning:
The mounting of a modulating
room thermostat imply the modification of
the functions of the heating temperature
adjuster (C) and D.H.W. temperature
adjuster (D).
Refer to the specific instructions supplied
with the modulating thermostat.
F
G
80°
60°
65°
70°
55°
60°
50°
50°
45°
40°
40°
30°
35°
20°
80°
60°
65°
70°
55°
60°
50°
50°
45°
40°
40°
30°
35°
20°
Through the thermometer scale of the panel
board it is possible to verify:
on the L.H. side scale
the flow température
of the heating circuit, (
F
green led ON); on
the following example the temperature will
be 80°C.
on the R.H. side scale
the outlet
température of the D.H.W. (
G
green led ON);
on the following example the temperature
will be 55°C.
On both cases, when two leds are ON the
temperature value will correspond to the
half of temperature difference betwee the
two ON leds.
80°
60°
65°
70°
55°
60°
50°
50°
45°
40°
40°
30°
35°
20°
Manometer
THERMOMETER
75°C
57,5°C
