Application - Vaillant VR 34 Manual De Instrucciones

3 Description of the equipment
Characteristic of 0-10 V interface
3.3

Application

The Vaillant VR 34 0-10 V --> eBus interface is
used when an existing external controller is
100 %
to be connected to a Vaillant boiler with an
eBUS interface.
The VR 34 0-10 V --> eBus interface can spec-
ify either an output setpoint (Fig. 3.1) or a
flow temperature setpoint (Fig. 3.2).
As delivered, without plug X1 plugged in, an
output setpoint in accordance with Fig. 3.1 is
min
selected.
To specify a flow temperature setpoint
0 2 4 6 8 10 12
(Fig. 3.2), plug X1 with a wire jumper must be
Input voltage [V]
plugged into slot X1 (see Fig. 3.4).
upward downward
Fig. 3.1 Characteristic of 0-10 V interface with
output setpoint
6
Installation instructions 0-10 V --> eBUS Interface VR 34 0020017083_05