Vaillant VR 81 Supplement Manual page 13

Fig. 4.3 Basic display
The current room temperature is displayed in the "Basic
display".
Additional symbols in the display also show the selected
operating mode as well as maintenance and error
messages. The meaning of the symbols is explained in
Table 4.1.
The operating mode is not displayed if:
- the holiday function has been programmed in the
VRC 430 at the operator operation level;
- the floor drying function has been set in the VRC 430
at the expert technician operating level.
Operating manual VR 81 0020044392_00 VR 81 0020044392_00
Symbol Meaning
Heating circuit, automatic operating mode
(can be adjusted at the VR 81 remote control unit or
the VRC 430 controller)
Control with reference to comfort temperature
within a programmed time window for heating (only
displayed with heating circuit, automatic operating
mode)
Control with reference to set-back temperature
within a programmed time window for heating (only
displayed with heating circuit, automatic operating
mode)
Heating circuit, manual operating mode
(can be set at the VR 81 remote control unit or at
the VRC 430 controller)
Heating circuit, operating mode off
(can be set at the VR 81 remote control unit or at
the VRC 430 controller)
Appliance fault
Maintenance requirement, appliance or installer level
Table 4.1 Meaning of symbols
Operation 4
9