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Installation instructions geoTHERM VWS/VWW 0020051574_01
6.8.1
Installing the VR 80/VR 90 remote control
unit
The VR 80/VR 90 remote control units communicate
with the heating controller via the eBus. You can con-
nect them to any interface in the system. You need only
to ensure that the eBUS interface is connected to the
heat pump controller.
The structure of the Vaillant system allows you to run
the eBUS from component to component (see Fig. 6.14).
Interchanging the cables does not lead to any impair-
ment in communication.
Fig. 6.14 Connecting remote control devices
All eBus connector plugs are designed to allow you to
wire at least 2 x 0.75 mm
2
per pigtail.
The use of cable with a cross-section of 2 x 0.75 mm
2
is
therefore recommended for eBUS cables.
Setting the bus address
In order to ensure perfect communication between all
components it is necessary to provide the remote con-
trol unit with an address that matches the heating cir-
cuit to be controlled.
• Set the bus address on the first additional VR 90 re-
mote control unit to "2".
• Set different, sequential bus addresses for any further
remote control units. Take note of the VR 90 installa-
tion manual.
2
Fig. 6.15 Setting the bus address
6.8.2 Connecting further mixer circuits
Like the VR 90 remote control units, the VR 60 mixer
modules also communicate with the heating controller
via the eBUS. When installing, observe the same proce-
dure as for connecting the remote control units (see
Chap. 6.8.1).
For the system configuration refer to Fig. 6.16. Refer to
the installation manual for the expansion module.
Fig. 6.16 Connecting further mixer circuits
Electrical installation 6
