Vaillant VRC 430 Operating and Operating And Installation Manual - page 17
Enter the room temperature as follows:
⇒
Turn the right-hand dial until the cursor
is in front
of the room temperature.
The explanation text "Select room temperature"
appears.
⇒
Click the right-hand dial.
The field is highlighted.
⇒
Turn the right-hand dial to set the room temperature
(values from 5 °C to 30 °C in half degree steps and
frost protection function are possible).
⇒
Click the right-hand dial.
The desired room temperature or the frost protection
function are saved and the value is no longer
highlighted.
4.7.3 Heating
settings
You can enter the following parameters:
Set-back temperature
Outside the specified time windows, the
room temperature is reduced to the set-back
temperature.
If your installer has set the frost protection function,
the set-back temperature will automatically be 5 °C.
and the set-back temperature will not be shown.
Heating curve
The relationship between the outside temperature and
the required heating flow temperature is represented
by a diagram with different heating curves (see Fig.
4.15). Each heating curve (from 0.2 - 4.0) gives a value
for the heating flow temperature (vertical diagram
axis) for a specific outside temperature (horizontal
diagram axis).
Fig. 4.15 Diagram with heating curves for a room temperature
of 20 °C
Example:
If the heating curve has been set to 1.5, this means that
to achieve a room temperature of 20 °C the boiler flow
temperature will be 57 °C when the outside temperature
is 0 °C.
h
Note!
In a well-insulated property a comfortable room
temperature can be achieved even with a flat
heating curve. This saves heating energy.
Your expert heating technician will provide
advice as to which heating curve should be
selected.
To change the heating curve: (example heating circuit 1):
⇒
Turn the left-hand dial until you reach the screen
8 "HC1 Parameter".
> Select temperature
HC1
8
Set back temperature
Parameter
Heating curve
15 . 0 ° C
1 . 2
Fig. 4.16 Screen 8 (example)
⇒
Turn the right-hand dial until the cursor
is in front
of the field for the set-back temperature.
The display shows "Select temperature" as an
explanation.
⇒
Click the right-hand dial.
The field is highlighted.
Operation 4
17
Operating instructions VRC 430