Power Supply - Viessmann VITOTRONIC 200 Installation And Service Instructions Manual

Electrical connections
Connecting an atmospheric burner
Colour coding to IEC 60757
BK Black
BN Brown
BU Blue

Power supply

Isolators for non-earthed conductors
■ 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, type B
that can occur with energy efficient equipment.
Power supply for accessories and external compo-
nents
For accessories and external components that will
■
not be connected to the control unit, we recommend
making the power connection to the same fuse, or at
the very least in-phase with the control unit.
■ Connection to the same MCB/fuse provides addi-
tional safety when the power is switched off.
Observe the power consumption of the connected
consumers.
Additional regulations for oil and gas combustion
equipment
Observe the national combustion equipment ordi-
■
nance for your region.
For oil and gas combustion equipment above
■
100 kW an "emergency stop switch" must be instal-
led outside the installation room, in line with the
Sample Combustion Ordinance "FeuVO".
■ For combustion equipment to EN 50156-1, the
"emergency stop switch" installed on site must com-
ply with the requirements of EN 50156-1.
24
(cont.)
, for DC (fault) currents
Danger
Incorrectly executed electrical installations can
result in injuries from electrical current and in
appliance damage.
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
■ Technical connection requirements specified
by the local power supply utility
Protect the power cable on site with a
■
fuse/MCB of up to 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 connected
to the equipotential bonding of the building.
Danger
Incorrect core allocation can result in serious
injury and damage to the appliance.
Never interchange cores "L" (brown) and "N"
(blue).
Colour coding to IEC 60757
BN Brown (L)
BK Black
BU Blue (N)
GY Grey
GNYE Green/yellow (PE)