8
VRT 230
Operating Manual
3
Description of the
appliance
The VRT 230 is a programmable room
thermostat with weekly heating program
for connecting to Vaillant boilers.
The VRT 230 enables you to specify the
room temperature using heating pro-
grams. You can also use special func-
tions such as the party function.
4 Operation
The operating principle uses three but-
tons and an dial (Vaillant “Turn and
Click” operating concept).
The display normally shows the current
operating mode (e.g. ), or, if activat-
ed, the respective special function and
the current room temperature, the day
of the week, the time and the heating
circuit symbol, if heating is required.
3 Description of the appliance, 4 Operation