Connecting The Remote Control Unit - Vaillant VR 81 Supplement Manual

Assembly 8
Electrical installation 9
9.1

Connecting the remote control unit

1 2 3
Communication with the boiler is achieved via a
2-lead bus line (eBUS).
The eBUS can be connected to the VR 81 remote control
unit via a branch at any desired location in the eBUS
system (see Fig. 9.1).
4
Fig. 9.1 System schematic Establishing connection between
eBUS and system
Installation instructions VR 81 0020044392_00 17