Electrical Connections; Control Unit - DeDietrich MODULENS O AFC 18 Installation And Service Manual

Oil-fired condensing boilers
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AFC 18 - AFC 24 - AFC 30
5.8

Electrical connections

P C
U
S C
09/07/2015 - 300026439-07
5.8.1.
The boiler is fully pre-wired. The electricity supply is made via
connection cable to the mains (hard mounted). All other external
connections can be made to the connection connectors (low
voltage).
Power the appliance via a circuit which includes a remote omnipolar
switch with a gap of more than 3 mm.
Single phase power supply: 230 V (+6% / -10%) - 50 Hz. Power
supply cable premounted.
Connect the boiler to a 6-amp circuit breaker - Type C.
U
1
2

Control unit

CAUTION
Keep to the polarity shown on the terminals: phase (L),
neutral (N) and earth *.
Routing of the 230 V cables
A
Routing of the sensor cables
Z
CAUTION
Disconnect the power supply at the mains before carrying
out any work on the appliance or accessories connected
to the appliance.
5. Installation
59

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