Power Supply - Viessmann VITOCAL 200-G Installation And Service Instructions Manual

Installation sequence
Electrical connections
Plug Sensor
X24 Connection of the LON communication module
(plug in on site, see LON communication module
installation instructions)
X31 Coding card slot

Power supply

Isolators for non-earthed conductors
■ The mains isolator (if installed) must
simultaneously isolate all non-earthed
conductors from the power supply with
a minimum contact separation of 3
mm.
■ We additionally recommend installing
an AC/DC-sensitive RCD (RCD class
B ) for DC (fault) currents that
can occur with energy efficient equip-
ment.
■ If no mains isolator is installed, all non-
earthed conductors must be isolated
from the power supply by the upstream
circuit breaker with at least 3 mm con-
tact separation.
52
(cont.)
Type
Danger
Incorrectly executed electrical
installations can lead to injury
from electrical current and result
in equipment damage.
Make the power supply connec-
tion and implement all protective
measures (e.g. RCD circuit) in
accordance with the following
regulations:
■ IEC 60364-4-41
■ VDE regulations
■ Technical connection require-
ments specified by your local
power supply utility
■ Protect the power supply to the
heat pump control unit with
16 A max.
Danger
An absence of component earth-
ing in the system can lead to seri-
ous injury from electrical current
if an electrical fault occurs.
Connect the appliance and pipe-
work to the equipotential bonding
of the house in question.