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If button C or D is pressed and held, the meter will alter the set
value more quickly. If no button is pressed for 5 seconds, the set
value is taken as the new heating setpoint and the display returns
to the main screen.
3.8 Adjusting the heating water temperature with an
outdoor temperature sensor connected
If an outdoor temperature sensor is installed and temperature
control is enabled (parameter P4.18 = 1), the delivery temperature
value is automatically selected by the system, which quickly
adjusts the ambient temperature according to the variations in the
outdoor temperature. If you want to change the temperature value
(increasing or reducing the value automatically calculated by the
electronic board), you can alter the HEATING setpoint as follows:
Press button C or D and select the required level within the range
(-5 ÷ +5) (see paragraph "3.3 Setting the temperature control" ).
Note: if an outdoor temperature sensor is connected, the boiler can
still work with a fixed point if you set parameter P4.18 = 0 (menu P4).
Adjusting the domestic hot water temperature
3.9
CASE A: heating-only, with no storage tank - adjustment not
applicable
CASE B: heating-only + external storage tank with thermostat -
adjustment not applicable
CASE C: heating-only + external storage tank with probe - to ad-
just the temperature of the DHW held in the storage tank, proceed
as follows:
from the main screen, press button A or B to see the current DHW
setpoint; the value will flash (0.5 sec ON, 0.5 sec OFF) and the
and
icons will light up.
A
A
+
B B
Press button A or B again to set the DHW setpoint, increasing or
decreasing it in steps of 0.5°C within the predefined range. The lev-
el bars next to the heating icon show the setpoint value in relation
to the operating range:
- 4 bars activated = max setpoint
- 1 bar activated = min setpoint
3.10 Safety stop
In the event of ignition faults or boiler operating faults, there will be
a "SAFETY STOP". The display will show not only the code of the
fault but also the flashing
backlight will flash for 1 min, then switch off, whereas the
will continue flashing.
+
RESET
MENU
icon (0.5 sec ON, 0.5 sec OFF). The
The 4-digit space will show a sliding message containing the error
code and a description.
3.11 Reset function
The RESET icon lights up in the event of an alarm that needs to be
manually reset by the user (e.g. a flame lockout).
To reset the lockout, press button 2 Reset.
If the release attempts do not restart the boiler, contact your local
Technical Assistance Centre.
3.12 Screed heater function
For a low temperature system the boiler has a "screed heater" func-
tion that can be activated in the following way:
ƒ turn the boiler OFF by pressing button 1
ƒ access the technical parameters as explained in paragraph
"1.14 Accessing the parameters"
ƒ select menu P4 and then item P4.09 with the
tons, then confirm with
(Note: SCREED HEATER is not available if the boiler is not OFF)
ƒ to activate the function, set the parameter at 1; to deactivate it,
set the parameter at 0
The screed heater function lasts 168 hours (7 days) during which,
in the zones configured as low temperature, a heating request is
simulated with an initial zone outlet of 20°C, then increased in line
with the table below. By accessing the INFO menu from the main
interface screen, you can see I001 relating to the number of hours
that have elapsed since the function was activated. Once activated,
the function takes priority, if the machine is shut down by disconnect-
ing the power supply, when it is restarted the function picks up from
where it was interrupted. The function can be interrupted before it
reaches the end, by bringing the boiler to a status other than OFF or
by selecting item P4.09 = 0 from menu P4.
DAY
1
2
3
4
5
6
7
icon
39
DAY
DAY
RESET
TIME
TEMPERATURE
0
20°C
6
22°C
12
24°C
18
26°C
0
28°C
12
30°C
0
32°C
0
35°C
35°C
0
30°C
0
0
25°C
and
but-
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