Description Of The Device; System Overview; Identification Plate; Ce-Mark/Conformity - Vaillant VR 68 Operating And Installation Manual

2 Description of the device

2 Description of the device
The VR 68 solar module is used to expand the VRC 430
or VRC 430f controllers.
Different configurations of the solar heating system can
be realised using the VR 68 solar module.
The four basic configurations correspond to the four
hydraulic diagrams that are described in more detail in
the Chapter entitled "Incorporating the VR 68 into the
solar heating system".
Further, the solar yield can be determined using the
VR 68 solar module in conjunction with the VRC 430 or
VRC 430f controller.
The VR 68 solar module can be combined with the VR 61
mixer module within a solar heating system. Two heating
circuits can be controlled using the VR 61 mixer module
in conjunction with the VRC 430 or VRC 430f controller.
2.1

System overview

The basic equipment for the heating system consists of
the following components:
- one VRC 430/VRC 430f controller that monitors all
functions of the heating system,
- one boiler,
- one heating circuit that is an enclosed system which
can generally be controlled separately and serves the
distribution of heat for heating. The heating circuit
includes all the elements involved in the production
and transport of heating heat, such as pipes,
underfloor heating coils, radiators, etc.
- domestic hot water cylinder or combi storage tank
that can be heated by two different sources – the solar
collector and the boiler. The latter reheats the water in
the event of insufficient solar radiation.
The heating system can be expanded using other
optional components:
- a VR 61 mixer module is used to expand the VRC 430
or VRC 430f controller system to create a secondary
heating circuit and allows the heating system to be
configured in a number of different ways,
- a VR 81 remote control for separate room temperature
control of a secondary heating circuit,
- a solar collector panel that absorbs solar radiation,
- a VR 68 solar module that integrates a solar system
into the VRC 430/VRC 430f control concept.
4 4
2.2

Identification plate

The identification plate of the VR 68 solar module is on
the inside of the housing cover.
2.3

CE-mark/conformity

The CE label documents that the VR 68 mixer module in
conjunction with Vaillant heating units fulfils the basic
requirements of the following guidelines:
– Guideline on electrical equipment to be used within
specific voltage ranges (Directive 2006/95/EC)
– Electromagnetic compatibility directive (Directive
89/336/EEC)
2.4

Intended use

The VRT 68 solar module is a state-of-the-art device
which has been constructed in accordance with the
standard safety regulations. Nevertheless, there is still a
risk of death or serious injury to the user or others or of
damage to the device and other property in the event
of improper use or use for which it is not intended.
The VR 68 solar module is a system component that is
used in conjunction with the VRC 430 or VRC 430f to
control a solar system with the following elements:
– a solar circuit
– a solar hot water cylinder
– a second solar cylinder (e.g. swimming pool) or
second differential control (optional)
– a legionella protection pump
Any other use or extended use is considered to be use
other than intended. The manufacturer or supplier is not
liable for any resulting damage. The owner alone bears
any risk.
Intended use also includes observance of the operating
and installation manual and all other applicable
documents.
Operating and Installation Manual for Solar Module VR 68 0020054784_00