Vaillant VRC 470 Installation Instructions Manual page 9

System description 3
Remote control unit VR 81/2
If the controller is installed in the boiler or if the second
heating circuit is to be influenced decentrally, you can
use the remote control unit VR 81/2. You can use the
remote control unit VR 81/2 to set the parameter " Room
temp. target".
In addition, the controller displays service and fault mes-
sages by means of symbols.
Data interchange is via eBus line.
Installation instructions VRC 470 0020116690_00
9