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27
Installation Manual
for VRC 400 weather compensator
Safety instructions and regulations 8
8.1 Safety
instructions
Danger!
Risk of fatal electric shock from
touching live connections.
Before working on the control,
switch off the power supply and
prevent it from being switched
on again.
Only remove the controller from
its wall mounting or base when it
is not live.
8.2 Regulations
All wiring must be in accordance with
Building Regulations Part P, current IEE
regulations, and all other relevant regu-
lations and guidelines, and must be car-
ried out by a suitably qualified person.
Use standard commercial cables for the
wiring.
- Minimum cross-section of wires:
0.75 mm
2
Do not exceed following maximum wire
lengths:
- Bus wires: 300 m
Connections with 230 V and bus wires
must be laid separately if longer than
10 m.
Содержание VRC 400 Operating and
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