Worcester bosch 30 kw heat only boiler ( conventional ) wiring issue.

[bluesky]

dear all,

i am going to install a worcester conventional boiler, everything looks fine except for the wiring, from the old boiler, i have, Perm L, N, E, Pump L and Pump N, but the worcester boiler has:
1. Main L
2. Main N,
3. E
4. Ls
5. Lr,
6, Ns,

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

cheers in advance

 

[justalex81]

there is a dedicated pump supply in addition to the connections you've described. 456 are for the timeclock.