Honeywell CMT927 To Vaillant Ecotec 831

[planemad]

I'm currently wiring my new CMT927 to my ecotec 831.

What has confusedt me slightly is that on the receiver (relay box) there are 2 terminals next to eachother marked L.

So which one of these is Live

it goes on the left terminal N -- L -- L so maybe I can just use any.

What do you guys think

 

[D_Hailsham]

So which one of these is Live?

Both are live, but you would easily find out for yourself if you tried one then the other.

PS The reason for two Live terminals is that it makes it easier when you have to install a link between L and A (not needed if you are connecting A and B to terminals 3 and 4 on the boiler).

 

[planemad]

Thank You Sir