Wiring The Controller Pcb; Connecting The Vr 10 Standard Sensor - Vaillant geoTHERM VWS Installation Instructions Manual

The controller PCB has a protective cover plate which
has cut-outs for the eBUS/vrDIALOG (Item 15) connec-
tion, as well as for the power supply LED (Item 18).
The cover plate must be removed to change the fuses,
Items 17 and 19.
6.6

Wiring the controller PCB

The controller has an automatic sensor recognition
function. You must configure the connected heating cir-
cuits in accordance with the system combination. In the
following you will find various options for operating the
heat pump.
6.6.1

Connecting the VR 10 standard sensor

Additional sensors are required as flow, return, collector
or cylinder sensors, depending on the configuration of
the system. The VR 10 standard sensor is so designed
that it can be used as an immersion sensor, e.g. as a cyl-
inder sensor in a cylinder sensor tube, or as a flow sen-
sor in a hydraulic switch. Using the enclosed cable tie
you can also attach it as a contact sensor to the heating
flow or return pipes. We recommend that the pipe to-
gether with the sensor be insulated to ensure optimum
temperature measurement.
Fig. 6.7 VR 10 standard sensor
Installation instructions geoTHERM VWS/VWW 0020051574_01
Electrical installation 6
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