Viessmann VITOTRONIC 300 Operating Instructions Manual page 27

Energy saving function "Holiday program"
The holiday program has the following effect:
■ Central heating:
For heating circuits in the operating program
–
"Heating and DHW":
The rooms are heated to the set reduced room
temperature (see page 23).
– For heating circuits in the operating program
"DHW only":
No central heating. Frost protection for the boiler
and the DHW cylinder is active.
■ DHW heating:
No DHW heating. Frost protection for the DHW cylin-
der is active.
Cancelling or deleting the "Holiday program"
Tap the following buttons:
1. "Menu"
2. "Heating"
3. "Heating circuit 1", "Heating circuit 2" or "Heat-
ing circuit 3" as the required heating circuit
4. "Holiday program"
Heating circuit 1 holiday program
Departure date
Tuesday
10/06/2014
Fig. 27
5. for "Return date" the same date as for the
"Departure date"
6. Press OK to confirm
Return date
Monday
16/06/2014
OK
Central heating — Single boiler system control
(cont.)
Display in the standard menu
Menu Heating circuit 1
14°
Holiday program
Holiday program
Fig. 26
06/06/2014
9:00
20°
27