Identify the wires
1
Remove the cover of your
old thermostat.
Take a picture of the wiring.
2
- 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 with
the help of the following diagram.
They are usually connected to
the COM/NO ports.
The other wires have to be safely
insulated.
See the Installation Troubleshooting p. 24 for more help.
10
2018-06 TH Manuel 1_filaire_V8.indd 10
Control wires
Power supply wires
P / N
COM / NO
or
L / N
01/06/2018 17:35:54