Vaillant VR 920 Operating And Installation Instructions page 100

7 Start-up of the separate version by the end user
A
2. Connect the power supply cable to the communication
unit (A).
◁
The LED flashes yellow, lights up in yellow and then
lights up permanently in blue.
3. Once the LED is lit up permanently in blue, the commu-
nication unit is connected to the Internet.
4. Carry out the further instructions in the app to set up
your account and configure the installation.
98
Internet
Router
Operating and installation instructions 0020266269_00