7
2
5
8
4.3
MAIN MENU
6
L6
L1
To enter the main menu, switch on the control unit
L2
4
L3
6
6
7
L5
by holding the push button
L4
2
4
4
In the main menu, the screen indicates by default
5
7
7
6
2
2
the temperature of the water in the boiler. Pushing
4
8
5
5
7
the button will show the values of the set tem-
2
8
8
5
peratures as thermostat to activate the circulation
8
4.4
SETTING THE TEMPERATURES
The variation of the settings of the control unit
L6
L1
L2
L3
can be done only by experienced technicians. It is
L5
L4
L6
L6
L1
L2
recommended not to change the factory settings if
L3
L5
L5
L4
L6
L1
L2
L3
L5
L4
• The button select the temperature to be changed
• The buttons allow to change the value
• The button saves the variation or button delete the change
Other parameters can be changed by entering in the installer menu.
Description
A01
Thermostat pump (°C)
A02
Thermostat valve (°C)
A03
Thermostat AUX (°C)
A05
Thermostat Serv (°C)
Table 3 – Default settings in the main menu
4.5
FUNCTIONS OF THE UNIT
Basically, the electronic unit checks the working of
the heating system; in addition, it has also other
auxiliary and safety functions.
Main function – The unit reads the water temper-
ature of the boiler, when it exceeds the set tem-
perature, the unit starts the circulation pump of
the heating system. When the temperature goes
under the set value, the pump stops, allowing the
temperature to go up again.
Secondary functions – When the temperature
exceeds the set values (A02, A03, A05), the cor-
respondent clamps activate (Valve, Aux, Serv) and
then the potential external connected devices. Ac-
cording to the installation, they could not deal with
the normal use of the thermal cooker.
Sanitary function – When the sanitary hot wa-
ter function is required, the presence of the liq-
L6
L1
L2
L3
L5
L4
6
4
7
2
5
8
L1
L2
L3
L4
L6
L5
124
pump of the heating system, as thermostat for a
potential external 3 ways electro-valve, as ther-
mostat for the deactivation of a potential external
heat generator, and as thermostat for a potential
other device not specified.
it is not necessary for the working of the heating
system. The variation of the set temperatures may
be done in the main menu.
L1
L2
L3
L4
Standard value
Corresponding LED
55
60
40
50
uid flow is detected, so the heating system pump
stops and gives prevalence to the sanitary hot wa-
ter. The pump restarts it the temperature exceeds
the temperature set as safety thermostat.
Alarm function – If the temperature exceeds the
set value for the alarm thermostat, an acoustic and
visible signal will be activated. Pushing any button
will deactivate the acoustic signal for 5 minutes.
Level switch function – If the level of the water
in the boiler decreases under the minimum value,
the L6 indicator will turn on: it will be necessary to
add water in the boiler tank. The indicator turns off
when the level of the water is restored.
Standby function – If the control unit is off and the
temperature exceeds the value set as safety ther-
mostat, the control unit will automatically start
and turns on the pump.
L1
L2
L3
L4