Vaillant VRT 350f Installation Instructions Manual page 10

Overview of operating levels (→ Page 30)
The installer level is reserved for the competent person. It is
protected by a code. Only competent persons may change
any settings in the installer level.
4.1.2 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.
4.1.3 Basic display
8
Auto 01.07.11
7
19,5
Desired temperature 20,0°C
6
Menu
5
1 Date
10
1
2
15:34
°C
3
Mode
4
2 Current room temperat-
ure
3 Time
4 Current function of the
right-hand selector but-
ton (soft key function)
5 Current function of the
left-hand selector button
(soft key function)
The control is battery-powered. To save power and thus ex-
tend the service life of the batteries, the display is normally
switched off. If you press one of the selection buttons or turn
the rotary knob, the background lighting switches on and the
basic display appears. At this point, you have not changed
any settings. Only if you press one of the selection buttons or
turn the rotary knob when the display or background lighting
is switched on are the settings changed.
The basic display shows the current settings and values of
the heating installation. If you make a setting on the control,
the display on the screen switches from the basic display to
the display for the new setting.
The background lighting goes out approx. 10 seconds after
the last operation. The display switches off approx. 1 minute
after the last operation.
4.1.3.1 Symbols for the Auto operating mode
Symbol Meaning
Day mode: Within a set time period
Night mode: Outside a set time period
Operating instructions 0020131979_01
6 Desired temperature
7 Symbol for heating
mode in Auto mode
8 Mode set for the heating
mode