Switching out 4 way light switch

[ryanwatson]

Just picked up a Lightwave smart switch (3 way), I’m trying to replace an existing 4 way switch with a 3 way smart switch with dimming. I plan to have one of the switches control 2 sets of existing lights hence 3.

I have attached a few pictures to explain below.

The smart switch has a single entry point for live rather than having to use a common and linking wires. If my understanding is correct, I would need to put all brown live wires together and put them in the new live slot? I doubt it would fit. Then, I would need to work out which blue switched live is which light as you can see in the picture these are grouped. Am I going about this right?



Appreciate the help, thanks.

 

[Taylortwocities]

You lucky man.
You have neutrals in your box...

1. The blues in your box are the neutrals, not switched lives. Leave them in the terminal block and run a new bit of blue wire from the terminal block to the N terminal.
2. On your existing switch you have 4 (probably) brown wires that go to L1 terminals on the switch (cant see from the pic). These are the switched lives. These will go to the outputs on the lightwave switch. I see you'll be grouping two together??, the old switch is 4-gang, the new one is only 3.
3. You will then be left with a couple of lives that will be on the switch COM terminals, with loops. Just put the ones that come from the cables in to the L terminal on the new switch.

That's it.

PS. If the new switch has an earth terminal, you'll need a of earth wire from the back box to the switch plate.

 

[EFLImpudence]

.....

 

[Taylortwocities]

A picture writes a thousand words!

 

[ryanwatson]

Thank you both! I’ll try that shortly and see where I get.

 

[EFLImpudence]

 

[EFLImpudence]

Mark the wires before you disconnect them

 

[ryanwatson]

Thanks to both of you I got this working quite quickly, appreciate you taking the time