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3/ CONNECTION
The diagrams provided are simplified for greater clarity.
Protections and other accessories required by standards are not
illustrated. - Standard NF C15-100 and good practice must be
complied with. Connected or nearby units must not generate
excessive interference.
Use rigid 1.5 mm² cables or flexible 1.5 mm² cables or flexible
cables with 0.75 mm² cap.
Replace a 2-wire thermostat or connect a boiler with thermostat
input.
❶ Turn the power off.
❷ Connect terminals 2 and 3 of the
thermostat to two terminals on the boiler
thermostat.
6
4 3 2 1
If the boiler has an
outdoor sensor input, do
not mistake it for the OT
thermostat input.
Replace a 3-cable thermostat
❶ Turn the power off and remove the
old thermostat.
If this thermostat has a heat
anticipator, remove the
corresponding wire.
If the existing thermostat is
2
1
connected to the earth (yellow/
green cable) remove the
corresponding cable.
❷ Connect the 2 remaining cables to
terminals 1 and 2 of the thermostat.
Boiler terminal example
If necessary, remove the
Wires to be
shunt (electric wire) on a
connected to the
terminal of the boiler
thermostat
(see boiler instruction).
wire to be removed :
- anticipator
- earthed
(green/yellow wire)
EN
1
2
old thermostat's
wire
7
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