Viessmann VITOCROSSAL 300 CU3A 35 Operating Instructions Manual page 24

Central Heating - Heating Circuit (HC)
Energy Saving Function "Holiday Program"
Display in the standard menu
24
Vitocrossal 300 CU3A 26 to 199 Operating
Selecting the energy saving function "Holiday program"
To save energy, for example over long holidays, you can
activate the "Holiday program".
Setting the "Holiday program" for central heating
Note: The holiday program affects all heating circuits.
If you want to make changes to this, contact your
local heating contractor.
The holiday program starts at 00:00 h on the day following
your departure and ends at 00:00 h on the day of your
return. This means the selected time program is active on
the days of departure and return (refer to page 24).
Extended menu:
1.
2. "Heating"
3. "Holiday program"
4. Set the required departure and return dates.
The holiday program has the following effect:
H Central heating:
– For heating circuits in the operating program
"Heating and DHW":
The rooms are heated to the selected reduced
room temperature (refer to page 21).
– For heating circuits in the operating program "Only
DHW":
No central heating. Frost protection for the boiler
and the DHW tank is active.
H DHW heating:
There is no DHW heating while 'holiday program is
active. Frost protection for the DHW tank is active.
Display in the extended menu
In the extended menu, you can call up the set holiday
program under "Information" (refer to page 41).
Cancelling or deleting the "Holiday program"
Extended menu
1.
2. "Heating"
3. "Holiday program"