5 Operation
5.1
Start-up
5 Operation
5.1.1
Procedure for first start-up
The following information appears on the display when the boiler is
electrically powered:
1. The message "INIT"" appears, indicating that the "Initialisation" phase
is active (a few seconds);
2. The software version "Vxx.xx." appears (two seconds);
3. The software version for boiler settings "Pxx.xx." appears (two
seconds);
4. The boiler and heating installation venting phase has started. During
operation, the display shows in alternate mode "– – – – – – – –", the
word “DEAIR” and the pressure value for the heating circuit. This
phase lasts 6 minutes and 20 seconds, at the end the boiler is ready
for operation;
5. The
symbol and the "x.x" installation water pressure value
appear.
In the event of a power outage the procedure will be repeated from the
beginning.
To activate a heating request, the room thermostat must be set to a
temperature above the current temperature (or open a domestic water
tap.)
5.1.2
Changing the heating flow temperature
1. Use the knob
to adjust the flow temperature in heating mode.
Turn the knob anti-clockwise to reduce the temperature value.
Turn the knob clockwise to increase the temperature value.
Important
With an outside sensor connected it is possible to lower the
setpoint value.
2. Press the F4 key to confirm the value or wait a few seconds until the
value is automatically saved.
Fig.5 Scrolling through the menus and/or
settings
BO-7763705-1
5.1.3
Changing the domestic hot water (DHW) temperature
1. Use the
knob to adjust the domestic hot water temperature.
Turn the knob anti-clockwise to reduce the temperature value.
Turn the knob clockwise to increase the temperature value.
2. Press the F4 key to confirm the value or wait a few seconds until the
value is automatically saved.
Fig.6 Scrolling through the menus and/or
settings
BO-7763705-2
F1
F1
F1 F2 F3 F4
F1
F1
F1 F2 F3 F4
Important
The flow temperature on the display automatically matches the
temperature set when using a:
Weather-dependent regulator.
OpenTherm regulator.
14
400 Combi 2
