Cancelling Or Deleting The "Holiday Program - Viessmann VITODENS Operating Instructions Manual

Central heating
"Holiday program" energy saving function
The holiday program has the following effects:
■ Central heating:
For heating circuits in the "Heating and DHW"
–
operating program:
The rooms are heated to the set reduced room
temperature (see page 29).
– For heating circuits in the "Only DHW" operating
program:
No central heating. Frost protection for the boiler
and the DHW cylinder is enabled.
■ DHW heating:
No DHW heating. Frost protection for the DHW cylin-
der is active.
Mechanical ventilation (if the holiday program was
■
applied to mechanical ventilation):
Mechanical ventilation runs in basic mode (ventila-
tion level 1).

Cancelling or deleting the "Holiday program"

Tap the following on-screen buttons:
1. "Menu" or " "
2. "Holiday program"
3. "Heating circuit 1", "Heating circuit 2" or "Heat-
ing circuit 3" as the required heating circuit
4. or
34
(cont.)
5. to set the same date for the "Return date" as for
the "Departure date"
6. OK/ to confirm
Note
The holiday program for mechanical ventilation must
be terminated separately. See page 38 (only HO2B).