Vaillant VR 81, Supplement Manual

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4 Operation
4.2 Operating concept
You can operate the VR 81 remote control unit using a
dial according to the Vaillant "Turn and Click" operating
concept.
Turn dial: change adjustable values
Click dial: confirm value;
select operation level/parameter
There are two operation levels:
- Operator operation level in which the target room
temperature and operating mode can be read off,
adjusted and changed;
- Installer level which is reserved for expert technicians.
Specific appliance parameters can be displayed and
adjusted/modified at this operation level.
Parameters that can be modified are indicated by a
flashing area in the display.
4.3 Setting the target room temperature
h Note
The room target temperature cannot be
displayed or modified if the holiday function or
floor drying function has been activated at the
VRC 430 controller or if the off operating mode
has been selected. "--" appears in the display
instead of the room target temperature.
The current room temperature and selected operating
mode are displayed in the basic display.
Turn the dial.
The current room temperature is no longer displayed. The
target room temperature that has been set lights up and
flashes. You can now change the target room
temperature.
Turn the dial to the left or the right to reduce or
increase the target room temperature.
The basic display appears again after five seconds.
The modified room set target value is applied.
Operating manual VR 81 0020044392_00 10