Identify
Remove the cover of your old
thermostat.
Take a picture of the wiring.
Power supply wires
Usually blue and
brown wires
Control wires
Usually black
or grey wires
- If there are only two wires, they are the
control wires and are useful in this setup.
- If there are more than two wires,
identify
the two control wires. They are usually
black or grey.
The wires can be identified as shown on
the following diagram
Note: If there are more than two wires, the
others are power supply wires and are
useless here. They are usually brown, blue,
green or yellow.
In doubt, please send a picture to
photo@netatmo.com
and our support team
will help you identify the right wires
P / N
L / N
or
COM / NO
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