I started pulling apparent some of my light switches yesterday in the hopes of putting in some GE/Jasco Z-wave switches. I quickly ran into some problems.
First was a simple on/off switch. Of course, the GE/Jasco switch requires a neutral where as the switch I was replacing just cut the hot-line. There is some neutral in the back of the box so I think I can tie into those and make the switch work. I fear though that some of my other switch will not have neutral lines by them that I can tap into.
Next is a dimmer three-way switch. Wiring for these appears to be much different then what I’d typically expect to see three-way. I believe it will be possible to make it work changing one of the traveling wires to a hot-line and using the other for communication back to the other switch. One switch is in the same box as as my simple on/off, so again I think I can use the neutral there. But the other switch has no neutral.
So I’m wondering… do all z-wave light switches require neutral lines at the switch? From what I can tell the Intermatic also require neutral. I don’t know if there are any other brands out there.
And a corollary question… any one ever have the wiring redone in their house? Mine in the original wiring from when the house was built back in the 1940’s. I know lots of places don’t have ground-lines run to them and some of the wiring has been a little… jury-rigged through the ages. I’m debating whether it makes sense to just get it all updated, especially if I want to start putting in more Z-wave stuff. But I have no idea what the cost would be for a project like this.