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12 - USE
1 - Display of the parameters
2 - Display of the paramenters value.
3 - Light indicates the burner state: Light-on = Burner ON; Blinking = Burner OFF.
4 - Light indicating DHW service: Light-on = DHW service ON; Light-off = DHW service OFF.
5 - Light indicates the decimal.
6 - Light indicates CH service: Light-on = CH service in function; Light-off = CH service not function.
7 - Heating temperature control.
8 - Key for decreasing parameter values.
9 - Key for resetting shutdowns and for scrolling the list of parameters.
10 - Key for increasing parameter values.
11 - Domestic hot water temperature control.
12 - On/off power switch.
13 - Heating circuit pressure gauge.
Figure 37 - Instrument panel
12.1 - Check
heating system
pressure
If the pressure inside the heating
circuit falls below 7psi (0,5 bar),
the appliance switches off and the
display "1" as per fi gure 37, shows
to indicate that it is
necessary to restore the correct
pressure. Proceed as follows:
1. open the fi lling cock;
2. check the pressure on the pressure
gauge "13" of fi gure 37, it must
reach a pressure of 20 psi (1,5 bar)
and the indication
disappear;
3. close the fi lling cock.
CAUTION!!! During normal
operations, the fi lling cock must
always remain in the closed
position.
If, with time, the pressure drops,
restore the correct value. This
operation may have to be repeated
several times during the fi rst month of
operations to remove any gas bubbles
present.
12.2 - Overview
The boiler is pre-set with standard
parameters. However, it is possible to
make a number of changes or consult
the parameters by means of using the
"Users' Menu" (see section 12.16).
During functioning display "1" of
fi gure "37" displays the status of the
boiler and display "2" (see fi gure 37)
shows the value of the parameter. The
must
various operating statuses are shown
in section 12.18.
Within the "Users' Menu" (see section
12.16) it is possible to check the last
lock-out or error which have occurred.
In addition to the operating modes,
the instrument panel provides
important information on the current
functioning of the boiler, via the
indicators "3", "4", "5" and "6" of fi gure
37. In particular:
- the indicator "3" displays whether the
burner is functioning (on) or whether it
is off (blinking);
- the indicator "4" displays whether
the domestic hot water service is on
or off;
- the indicator "6" displays whether a
heating service request is active (on)
or nor (off).
12.3 - Displays
During normal operations, the
parameters' display "1" and the
values' display "2" (see fi gure 37)
remain permanently on, if the "Energy
Saving" mode has not be activated
(See section 12.15).
The parameters which can be
displayed are shown with their
meaning in the table shown in section
12.18.
44
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