Your System Has Been Preset - Viessmann VITODENS Operating Instructions Manual

Commissioning
The commissioning and matching of the control unit to
local conditions and building characteristics, as well as
instructing the user in the operation of the system,
must be carried out by your heating contractor.

Your system has been preset

Your heating system is preset at the factory and is
therefore ready for operation:
Central heating
Between 06:00 and 22:00 h, the rooms are heated
■
to 20 °C "Set room temperature" (standard room
temperature).
■ Between 22:00 and 06:00 h, the rooms are heated
to 3 °C "Reduced room temperature" (reduced
room temperature, frost protection).
DHW heating
■ Between 05:30 and 22:00 h, the DHW is heated to
50 °C "Set DHW temperature". The DHW circula-
tion pump, if installed, is switched on.
Between 22:00 and 05:30 h, the DHW cylinder is not
■
reheated. The DHW circulation pump, if installed, is
switched off.
Note
Any DHW heating begun before 22:00 h is termina-
ted.
Energy saving tips
Central heating
Standard room temperature (see page 24):
■
Do not overheat your home. Every degree of room
temperature reduction saves up to 6 % on your heat-
ing bills.
Do not set your standard room temperature ("Set
room temperature") higher than 20 °C.
■ Time program (see page 14):
Heat your home to the standard room temperature
during the day and to the reduced temperature at
night. Set this via the time program.
Operating program:
■
If you do not require central heating, select one of
the following operating programs:
– "Only DHW" (see page 29):
If you require no heating for your home in summer,
but you require DHW.
"Standby mode" (see page 22):
–
If you do not need to heat your home and do not
require DHW for long periods.
As the user of new combustion equipment, you may be
obliged to notify your local flue gas inspector of the
installation [check local regulations]. Your local flue gas
inspector will also inform you [where appropriate]
about work he may be required to carry out on your
combustion equipment (e.g. regular checks, cleaning).
Frost protection
■ Your boiler and DHW cylinder are protected against
frost.
Wintertime/summertime changeover
This changeover is automatic.
■
Date and time
■ The date and time have been set by your heating
contractor.
You can change these settings at any time to suit your
individual requirements.
Power failure
All settings are saved if there is a power failure.
Short absence (see page 27):
■
Reduce the room temperature if you are going out
shopping, for example. For this, select "Economy
mode".
■ Holidays (see page 24):
If you are going away, select the "Holiday pro-
gram":
The room temperature is reduced, and DHW heating
is turned off.
■ Ventilation:
Close the thermostatic valves when venting. Open
the windows fully for a brief time.
Roller shutters:
■
Close roller shutters (if installed) at dusk.
■ Thermostatic valves:
Ensure that thermostatic valves are properly adjus-
ted.
Radiators:
■
Never cover radiators or thermostatic valves.
Introductory information
9