Safety 1
3
1
Safety
1.1
General safety information
1.1.1 Risk caused by inadequate
qualifications
Assembly and disassembly, installation, start-
up, maintenance, repairs and decommission-
ing must only be carried out by a compet-
ent person who is sufficiently qualified to ob-
serve all of the instructions that come with the
product, to proceed in accordance with the
current state of the art, and to comply with
all applicable directives, standards, laws and
other regulations.
1.1.2 Risk of material damage caused by
frost
▶
Do not install the product in rooms prone
to frost.
1.1.3 Danger due to malfunctions
▶
Install the controller in a location where it is
not covered by furniture, curtains, or other
objects.
▶
If thermostatic control is activated, ad-
vise the operator that, in the room where
the controller is mounted, all the radiator
valves must be fully open.
▶
At lengths of 10 m or more, mains voltage
supply lines must be laid separately from
sensor or bus lines.
1.2
Requirements for lines
▶
Use standard commercial lines for the wir-
ing.
▶
Do not use flexible lines for mains voltage
supply lines.
▶
Use insulation cables for mains voltage
supply lines (e.g. NYM 3 x 1.5).
Minimum cross-section
Supply line for mains
voltage (pump or mixer
mains cable)
≥
1.5 mm
²
eBUS line (extra-low
voltage)
≥
0.75 mm
²
Sensor line (extra-low
voltage)
≥
0.75 mm
²
Maximum line length
Sensor lines
≤
50 m
Bus lines
≤
125 m
1.3
Regulations (directives, laws,
standards)
▶
Observe the national regulations, stand-
ards, guidelines and laws.
1.4
Intended use
In the event of inappropriate or improper use,
damage to the product and other property
may arise.
The product controls a heating installation
with a Vaillant heat generator with an eBUS
interface in a way that is weather-controlled
and time-dependent.
Intended use includes the following:
–
observance of accompanying operating,
installation and servicing instructions for
the product and any other system compon-
ents
–
installing and fitting the product in accord-
ance with the product and system approval
–
compliance with all inspection and main-
tenance conditions listed in the instruc-
tions.
Intended use also covers installation in ac-
cordance with the IP class.
Any other use that is not specified in these
instructions, or use beyond that specified in
this document shall be considered improper
use. Any direct commercial or industrial use
is also deemed to be improper.
Caution.
Improper use of any kind is prohibited.
0020200781_01
VR
C
700/2
Installation instructions
