Viessmann Vitotronic 300 Operating Instructions Manual page 17

Time programs
(continued)
Changing and scanning the time program for domestic hot water heating and the DHW circulation pump (continued)
1 0 3 6 9 12 15 18 21 24
1-7
DHW Phase 2 OFF
1-7
To exit the setting mode at any time
1. B Press B; the display
changes to "Exit? Yes".
2. d Press d to confirm; the
display changes and shows
the boiler temperature.
To scan the time phases
Follow the procedure described on
page 15 and 16, but without using
the a and b buttons.
The time phases at a glance
1. Open the hinged cover on the pro
gramming unit.
2. Press the heating circuit selector
button; the button is lit.
3. Press B and c simultaneously;
the preset time phases appear on
a time slot graphic.
4. Close the hinged cover on the pro
gramming unit.
To erase the time phases
1. Open the hinged cover on the pro
gramming unit.
2. Press the heating circuit selector
button; the button is lit.
3. B Press B; the "DHW time
program" display appears
in the display window.
4. d Press d until the required
"DHW phase OFF" ap
pears.
5. b Press b until the display
" : " appears for the
finishing time.
6. d Press d to confirm until
the display changes and
shows the boiler tempera
ture.
7. Close the hinged cover on the pro
gramming unit.
Settings
17