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4. Installation
4.10 Electrical connections
C
E
D
A
28
2
¼ For the connection of the outside temperature sensor, refer to
the chapter "Electrical Connections".
8800N003-C
4.10.1.
The boiler is fully pre-wired. The mains supply is made via the cable
C connected to the mains. All other external connections can be made
to the connection connectors (low voltage). The main characteristics
of the control unit are described in the table below.
B
C002336-E
Inserts
A
Ø4 wood screw
Z
Control unit
Power supply voltage
Rating of the main fuse F1 (230 VAC) 6.3 AT
Fuse rating F2 (230 VAC)
Fan-DC
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
B
Power supply cable
C
6,3 AT fuse
D
2 AT fuse
E
CAUTION
The following components of the appliance are at a
voltage of 230 V:
Boiler pump.
4
Combined venturi and gas valve unit.
4
3-way valve.
4
The majority of components in the control panel and
4
the terminal box.
Power supply cable.
4
230 VAC/50Hz
2 AT
27 VDC
15/06/12 - 300022160-001-01
MCA 35
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