3
Equipment and functional
description
3.1
Construction and function
The controller is used for weather-compensated heating
control with hot water generation.
The controller can control the following system circuits:
one DHW cylinder,
a maximum of two modulating boilers without eBUS
or
one modulating boiler with eBUS
or alternatively one 2-stage
boiler,
two controlled circuits and
one uncontrolled circuit
VRC DCF
VR 90
VR 60
VRC 630
Fig. 3.1 System Overview
Key
VR 90
Remote control unit
VR 60
Mixer module
VRC DCF External sensor
If the heating installation is to be expanded with, e.g.,
further heating circuits, additional system components
can be integrated into the complex system of the instal-
lation (
¬ Fig. 3.1
).
To expand the central heating installation, up to six
additional mixer circuit modules (accessory), each with
two mixer circuits, can be connected. This means: the
controller can control a maximum of 15 circuits.
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8
Installation Instructions VRC 630 0020095108_00
3 Equipment and functional description
Содержание VRC 630
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