3Installation Instructions VRC430 0020042468_02
2 Description of the appliance
The VRC 430 is a weather compensator designed for
heating and hot water generation in conjunction with a
Vaillant boiler (eBUS-capable).
The VRC 430 can also be used to control the following
accessory components:
– Circulation pump for hot water generation in conjunc-
tion with a multi-functional module 2 of 7
– Conventional domestic hot water cylinder
– Vaillant layer hot water storage tank actoSTOR
– Second heating circuit using the Vaillant Mixer
Module VR 61
– Solar unit using the Vaillant Solar Module VR 68
On the VRC 430 data is exchanged and power supplied
via an eBUS interface.
The VRC 430 can be operated with the Vaillant remote
control VR 81.
The VRT 430 is equipped for operation with the
Vaillant diagnosis software vrDIALOG 810/2 and with
the Vaillant Internet Communication System
vrnetDIALOG, i.e. for remote diagnosis and remote set-
ting.
230 V~
1
45
2 3
Fig. 2.1 System diagram
Key
1 VRC 430
2 External sensor VRC 693 or VRC 9535 (DCF)
3 Boiler
4 Cable connection (VRC 693: twin core; VRC 9535: 3 core)
5 eBUS connection (twin core)
2.1 Identification plate
The identification plate is located on the rear of the con-
troller electronics (printed circuit board).
2.2 CE label
The CE label indicates that the Vaillant controller
VRC 430 complies with the basic requirements of the
following guidelines:
– Electromagnetic compatibility directive
(Guideline 89/336/EEC)
– Low voltage directive (Guideline 73/23/EEC)
Description of the appliance 2
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