Display - Vaillant ecoTEC plus Operating Instructions Manual

4 Operation
4.2

Display

Digital Information and Analysis System (DIA)
11
Fig. 4.2 Display ecoTEC plus
The ecoTEC plus boiler is fitted with a digital information
and analysis system (DIA). This system provides
information on the operating status of your boiler and
helps you deal with problems.
When your boiler is in normal mode the display (1)
shows the current heating flow temperature (in the
example 58 °C) and the current fill pressure of the
heating system in the bar graph display on the right.
If a fault develops, a fault code appears instead of the
temperature. The display of the ecoTEC plus also shows
additional information in plain text.
Display of the present heating flow temperature
9
of the heating system or fault code
Display of the current function of the right
10
selection button (in the basic display, the setting
of the heating and hot water temperature)
Display of the current function of the left
11
selection button (in the "Menu" basic display)
You can also see the following information from
the symbols displayed:
Heating mode active
permanently on: Heat requirement, heating mode
flashing: Burner on in heating mode (this
function is used to frequently
limit on/off operations and
therefore contributes to
increasing the life of your boiler)
10
Hot water production active
On VUW/APC units:
flashing: Burner on in draw-off mode
On VU units:
9
permanently on: window activated for hot water
flashing:
10
Display of the current fill pressure
(bar graph display).
The fill pressure must be in the mid range
between both dashed lines.
Display of the instantaneous burner
modulation rate (bar graph display)
Flame without cross:
Burner operation normal
Flame with cross:
Fault during burner operation;
Unit is switched off
Only on VUW/APC units:
Comfort mode active
permanently on: Comfort mode is activated
flashing:
Burner blocking time active
This function is used to limit frequent on/off
operations, and therefore contributes to
prolonging the life of your boiler.
Operating instructions ecoTEC plus 0020124810_FT1b
production
Domestic hot water cylinder
is being heated, burner on
(activated by window)
Comfort mode is active,
burner on