Vaillant VRT 350, Operating Instructions Manual, Page: 10 / 36

4 Operating
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Operating instructions VRT 350 0020135485_00
4 Operating
4.1 Operating structure
The controller has two superordinate operating levels.
4.1.1 Access level for the operator
Through the access level for the operator, you access im-
portant information and set-up options which do not re-
quire any special prior knowledge. Via a menu structure,
you can access configurable or read-only values.
4.1.2 Access level for the skilled tradesman
The skilled tradesman will set further values for the heating
installation via the access level for the skilled tradesman.
The settings may only be made by someone with specialist
knowledge; this level is therefore code-protected.
4.1.3 Menu structure design
The menu structure of the controller is split into three
levels. There are two selection levels and one setting level.
From the basic display, you can access selection level 1 and,
from there, you can access the menu structure for one level
up or down. The setting level is accessed from the lowest
selection level.
4.1.4 Basic display
Auto 01.07.11
°C
19,5
15:34
Desired temperature 20,0°C
Menu
Mode
1
2
3
4
8
7
5
6
Image 4.1: Basic display
1 Date
2 Current room temperat-
ure
3 Time
4 Current function of the
right-hand selector button
(soft key function)
5 Current function of the
left-hand selector button
(soft key function)
6 Desired temperature
7 Symbol for heating mode
in «Auto» mode
8 Mode set for the heating
mode
The basic display is the permanently visible display on the
screen. The basic display shows the current settings and
values of the heating installation. If you make a setting on
the controller, the display on the screen switches from the
basic display to the display for the new setting.
The basic display appears when you:
–
press the left-hand selection button and thus exit selec-
tion level 1.
–
do not operate the controller for more than 5 minutes.
4.1.4.1 Symbols for the heating mode in the
«Auto» operating mode
Symbol Meaning
Heating mode within a set time period (comfort
mode)
Heating mode outside a set time period (set-back
mode)
Table 4.1: Symbols for heating mode
4.1.4.2 Soft key function
Both selector buttons have a soft key function. The current
functions of the selector buttons are displayed in the bot-
tom display line. Depending on the selection level selected
in the menu structure, the list entry or the value,
–
the current function of the left-hand selection button
may differ.
–
the current function of the right-hand selector button
may differ.
If, for example, you press the left function key, the current
function of the left function key switches from «Menu» to
«Back».
4.1.4.3 Menu
If you press the left-hand selector button, «Menu», you
switch from the basic display to selection level 1 of the
menu structure.
4.1.4.4 Mode
If you press the right-hand selector button, «Operating
mode», you access the settings under «Operating mode»
directly from the basic display. This is a quick way to modify
the of «HEATING 1».