Vaillant ecoCRAFT exclusive Operating Instructions Manual page 8

3 Product description
heating installation, the operating mode or
certain additional information.
The i button is used to call up status in-
formation.
The controller, which is available as an
accessory, automatically controls the flow
temperature depending on the outside
temperature.
The main switch is used to switch the
product on and off.
The + button is used to display the cylinder
temperature (if the product is equipped
with a cylinder temperature sensor for the
domestic hot water cylinder).
The − button is used to display the filling
pressure of the heating installation.
The Reset button is used to reset the
product in the case of certain faults.
The heating flow temperature rotary knob
is used to set the heating flow temperature
if no controller is connected. If a controller
is connected, the heating flow temperature
rotary knob should be turned clockwise as
far as it will go.
The cylinder temperature rotary knob is
used to set the cylinder temperature if a
domestic hot water cylinder is connected.
If a control is connected, the rotary knob
should be turned clockwise as far as it
will go. The controller then determines the
cylinder temperature.
8
3.3.1 Digital Information and
Analysis System (DIA)
1 Display showing
the current heat-
ing flow temper-
ature, the filling
pressure in the
heating installa-
tion, or a status
or fault code
Sym-
Meaning
bol
Fault in the
air/flue gas route
Fault in the
air/flue gas route
Operating instructions ecoCRAFT exclusive 0020149575_01
1
2
2 Plain text display
Explanation