Power Supply Fö - Viessmann VITODENS 200-W Installation And Service Instructions Manual

Installation sequence
Electrical connections
Power supply
fÖ
Danger
Incorrectly executed electrical installations can
result in injuries from electrical current and in
damage to the appliance.
Connect the power supply and implement all
safety measures (e.g. RCD circuit) in accord-
ance with the following regulations:
■ IEC 60364-4-41
■ VDE regulations
■ Connection requirements specified by your
local power supply utility
22
(cont.)
Remove any existing individual cores.
■
Danger
Incorrect core assignment can result in serious
injury and damage to the appliance.
Do not interchange cores "L1" and "N".
Install an isolator in the power cable to provide
■
omnipolar separation from the mains for all active
conductors, corresponding to overvoltage category
III (3 mm) for full isolation. This isolator must be fitted
in the permanent electrical installation, in line with
the installation requirements.
We additionally recommend installing an AC/DC-
sensitive RCD (RCD class B
currents that can occur with energy efficient equip-
ment.
■ Max. fuse rating 16 A
Danger
The absence of component earthing can lead
to serious injury from electric current if an
electrical fault occurs.
The appliance and pipework must be connec-
ted to the equipotential bonding of the build-
ing.
) for DC (fault)