Vaillant VU GB 1206/5-5 User Manual

Operation
Operating instructions ecoTEC plus 0020134822_01 9
4
Displayed symbols
Flame:
Permanently on: Correct burner operation; burner
on
Display of the current burner modulation rate (bar
graph display)
Display of the current filling pressure of the heating
installation (bar graph display).
The filling pressure must be in the mid range
between the two dotted lines.
Permanently on: The filling pressure is within the
permitted range.
Flashing: The filling pressure is outside of
the permitted range.
Heating mode active
Permanently on: Heating mode heat requirement
Flashing: Burner on in Heating mode
Hot water generation active
Permanently on: Time period activated for hot
water generation
Flashing: Domestic hot water cylinder is
being heated, burner on
Maintenance required. In the "Live monitor", you
can read further information about the reason for
the service (¬section 6.2).
Additional symbols:
Summer mode active
Heating mode is switched off
Burner anti-cycling time active
This function is used to prevent frequent on/off
operations, and therefore contributes to prolonging
the life of your boiler. The symbol also appears if
the boiler is in a waiting period.
F. X X
Fault in the boiler. Appears instead of the basic dis-
play (¬section 4.4).
A plain text display explains the displayed fault
code.
Example; F.10 Flow NTC short circuit.
4.3 Operating concept
You can operate the boiler using the selector buttons and
the plus/minus buttons.
Both selector buttons have a soft key function. This means
that their function may change.
45
DHW temperature
Back
4.3 Display after pressing the left-hand selector button
If, forexample, you press the left-hand selector button in
the basic display (¬section 4.4), the current function
s
witches from "
" (hot water temperature) to "Back".
With the left-hand selector button
:
– you can navigate directly to set the hot water tempera-
ture
– you can cancel the change to a set value or the activa-
tion of an operating mode
– you can go one selection level higher in the menu
With the right-hand selector button
:
– you can navigate directly to set the heating flow temper-
ature and to the precise value of the water pressure of
the heating installation
– you can confirm a set value or the activation of an oper-
ating mode
– you can go one selection level lower in the menu

Vaillant VU GB 1206/5-5 Specifications

General

Brand	Vaillant
Model	VU GB 1206/5-5
Category	Boiler
Language	English