Overview Of Electrical Connections - Viessmann Vitocal 300-G Pro Installation And Service Instructions For Contractors

Electrical connections

Overview of electrical connections

Note
Route 230 V cables and LV cables separately and
■
bundle tightly at their terminals. This ensures that, in
the event of a fault, e.g. when detaching a wire, the
wires cannot drift into the adjacent voltage area.
■ Strip as little of the insulation as possible, close to
the terminals.
If 2 components are being connected to the same
■
terminal, press both cores together in a single wire
ferrule.
Wiring chamber, top
Fig. 23
Power supply for power circuit (compressor)
A
3 x 400 V/50 Hz (only type BW 302.C180 and
BW 302.C230, see also pos.
Message and safety connections (safety chain)
B
with distribution terminals
(cont.)
F3
in fig. 24)
M
Terminal strip for system components (consumers)
C
3 x 400 V~/230 V~ (for connection, see separate
"Connection and wiring diagram".)
Switched phase can be used for on-site system
components. Observe max. output.
Installation sequence
31