Safety Instructions And Regulations; Safety Instructions; Regulations - Vaillant VRC 430f Operating And Installation Manual

3 Safety instructions and regulations

3 Safety instructions and regulations
The VRC 430f must be installed by a suitably qualified
heating engineer, who is responsible for adhering to the
existing standards and regulations. We accept no liabili-
ty for any damage caused by failure to observe these in-
structions.
3.1

Safety instructions

Danger!
e
Live connections!
When working in the control cabinet of the ap-
pliance there is a danger to life by electric
shock.
Switch the power supply off before working in
the control cabinet and secure against re-con-
nection.
Open the control cabinet only when the appli-
ance is potential-free.
3.2

Regulations

During the electrical installation, observe the regula-
tions of your local power supplier.
All wiring must be in accordance with Building Regula-
tions Part P and BS 7671 (IEE Wiring Regulations), and
must be carried out by a suitably qualified person.
Use commercially available cables for the wiring.
Minimum cross-section of sensor and bus cables
2
0.75 mm
The following maximum cable lengths must not be ex-
ceeded:
– Sensor lines 50 m
– eBUS lines 300 m
Sensor and eBUS lines must be routed separately where
they run parallel to 230 V cables for longer than 10 m.
Do not use free terminals of the appliances as support
terminals for other wiring.
The controller and radio receiver unit may only be in-
stalled in dry rooms.
4 Installation instructions VRC 430f 0020042470_01