7
Location of connections:
- the 230 V supply lead and room thermostat inputs
must be fitted on the wall at the height specified
on the fitting template
• the boiler is supplied with 230 V by a twin and
earth lead supplied with the appliance
• room thermostat (TA): prepare a free length of
at least 50 cm where the TA lead meets the
wall
Access to the boiler room thermostat connec-
tion:
- the room thermostat is connected behind the boi-
ler control unit
Regulations:
- in accordance with the regulations, an all-pole iso-
lating device with a contact opening gap of at least
3 mm must be installed in the boiler's stationary
power supply installation
- the boiler must be connected to a fixed junction
box using the cable supplied
230 V and earth connection via the lead provided at J1
Important: If the power supply cable is damaged, it should be replaced by the manufacturer, the after-sales service or
a person with a similar status, in order to avoid potential danger.
Room thermostat connection
When it leaves the factory, the boiler is set to operate without a room thermostat: a shunt S is fitted on connector D. A room
thermostat can be connected to this connector
- lower the electronic control unit by releasing the side locking pins P, to gain access to the rear side
- remove screws B and cover C (fig. 10)
The room thermostat connection can then be accessed.
- remove connector D
- connect the thermostat in place of shunt S
- reconnect connector D
Connector J12 shown (fig. 11) is ready to connect an optional programmer (refer to the relevant instructions if necessary).
6. Electrical connections
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