Viessmann VITOLIGNO 250-S Operating Instructions Manual page 28

DHW heating
DHW temperature
Required settings
If you require DHW heating, check the following points:
■ Have you selected the required set DHW tempera-
ture?
For information on settings, see page 28.
Setting the DHW temperature
Press the following keys:
1. Repeatedly, until the standard menu is dis-
ä
played.
2. / For "DHW".
| ~
3. To confirm.
d
Operating program
Setting the operating program for DHW heating
Heating program
DHW
Standby mode
Select with
Fig. 25
Press the following keys:
1. Repeatedly, until the standard menu is dis-
ä
played.
Time program
Setting the time program for DHW heating
The times at which DHW heating is enabled for the rel-
evant heating circuit depend on the switching time set-
tings for the respective day (4 possible time phases).
The time program for DHW heating is made up of
■
time phases. A time phase from 06:00 to 22:00 h is
set at the factory for every day.
■ The factory setting for DHW heating is Automatic
mode.
28
Have you selected the correct operating program?
■
For information on settings, see page 28.
■ Have you selected the required time program?
For information on settings, see page 28.
4. / For "Set temperature".
| ~
5. To confirm.
d
6. / For the required temperature.
| ~
7. To confirm.
d
"Adopted" appears briefly on the display.
2. / For "DHW".
| ~
3. To confirm.
d
4. / For "Operating program".
| ~
5. To confirm.
d
6. / For "DHW" or "Standby mode".
| ~
7. To confirm.
d
■ If you don't want automatic mode, you can select up
to 4 individual time phases per day for DHW heating.
To do so, set a start and end point for each time
phase.
■ In the "Extended menu", you can call up the current
time program under "Information" (see page 35).