Novice user, please excuse obvious questions...
I've read in detail previous threads regarding the replacement of an old Switchmaster 300 with a Horstman C17~which is exactly what I want to do.
There is one (or 2, really) outstanding pieces of information I need before attempting the re~wiring.
There is much talk of an L-2 link needed for mains voltage applications. My first obvious question is ; what is this link ? Do I need it? How do I link L-2? I don't see anything in the existing wiring that looks like a link. (I'm sure these sound like a really dumb questions to anyone who knows what they're doing, but I'm just trying to learn!)
The boiler is an old Vaillant Combi VCW-Sine18 T3WFH (26kw)
The wires are two sets of Brown /Blue/ Green & Yellow.
The two earths are in the same earth terminal and the other wires are connected as follows;
N (blue) L (brown) 1 (brown wire) 4 (blue)
Can anyone tell me how I should wire the C17? Other posts on DIYnot had different initial wiring, I assume the C17 wiring would be different too....
Hope someone can help!
Thanks for your time.....
I've read in detail previous threads regarding the replacement of an old Switchmaster 300 with a Horstman C17~which is exactly what I want to do.
There is one (or 2, really) outstanding pieces of information I need before attempting the re~wiring.
There is much talk of an L-2 link needed for mains voltage applications. My first obvious question is ; what is this link ? Do I need it? How do I link L-2? I don't see anything in the existing wiring that looks like a link. (I'm sure these sound like a really dumb questions to anyone who knows what they're doing, but I'm just trying to learn!)
The boiler is an old Vaillant Combi VCW-Sine18 T3WFH (26kw)
The wires are two sets of Brown /Blue/ Green & Yellow.
The two earths are in the same earth terminal and the other wires are connected as follows;
N (blue) L (brown) 1 (brown wire) 4 (blue)
Can anyone tell me how I should wire the C17? Other posts on DIYnot had different initial wiring, I assume the C17 wiring would be different too....
Hope someone can help!
Thanks for your time.....