Urgent help needed pls:Worcesterboiler ( conventional ) wiring issue.

[bluesky]

dear all,

i am going to wire a worcester conventional boiler, the old oiler, has Perm L, N, E, Pump L and Switch L, but the worcester boiler has:
1. Main L
2. Main N,
3. E
4. Ls
5. Lr,
6, Ns,
7, External Pump Nz
8, External Pump Lz

i dont know connect which to which really, anyone can help please?

cheers in advance​

 

[topquark]

The connections on the worcester will be as follows:
1) Perm L
2) Perm N
3) E
4) Feed to programmer/stat (via wiring centre as necessary)
5) Return from programmer/stat (as above) ... this will be your switched live (Lr = Live Return/call for heat/switched live).
6) Neutral supply (if needed, not needed for programmers that are battery powered (no neutral required)
7/8) Supply for external pump (if needed)

If you let me know which model it is I can post a link to the installation manual.

 

[bluesky]

hi topquark, really appreciate your help, have asked quite a few people but not so many people know this, the boiler is Worcester Conventional Greenstar 30CDi,

cheers

 

[topquark]

Page 26 onwards in here: http://www.worcester-bosch.co.uk/ca...ing-instructions-for-greenstar-cdi-system.pdf

There is also a wiring guide that's quite good here: http://www.worcester-bosch.co.uk/cache/file/482/gas-boiler-wiring-guide.pdf

 

[bluesky]

this is really cool, cheers topquark

 

[topquark]

Any problems holler, the wiring guide is pretty good and can be adapted to most installs.

 

[topquark]

Just to clarify, you did mean a system boiler when you said conventional?

 

[bluesky]

no topquark, it is a regular boiler, i have found the diagram in your link anyway,cheers

 

[topquark]

All pretty much the same electrically, just had a bit of a brain fart there