Answer
Jan 29, 2017 - 01:13 PM
Yes, the Fibaro Double Switch 2 can work with 3-way switched circuits. Ideally, you should install the module behind the switch that has the live feed and the return to the lamp. In your current setup, you should see these two wires connected to L1 and L2 on the switch, along with the wires that go to the next switch in the line. Connect the live wire to L on the module, and the return to the lamp goes into the switch's output on the module. Add two short wires: one between Sx on the Dimmer 2 and L1 on the switch, and another between S1 on the module and S2 on the switch. For this setup, set the Dimmer 2 for toggle switches (parameter 20=1) and disable S2 operation (parameter 26=0). You can find the wiring diagram by searching for "fibaro double switch 2 wiring diagram" online; the diagram you need is on the 3rd page.
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