How to wire Sunvic CH Digital Timer please

[Sculdugery]

Hi i need to wire up a digital timer from an old on/off switch for the CH.


N L 1 2 3 4
mains com off on
fused 3A


From mains - L to L and N to N

From Boiler - L to 3 and Nto N

Link L wire wit L and 1
then where does the earth go

Cheers

 

[comms]

In the terminal marked earth or in a nice little bit of terminal strip.

 

[ericmark]

A lot depends on the system there is Y, C etc. A long time ago I wrote this but links no longer work and I am sure there are some errors. It was done to explain to someone how he could add zones. Honeywell site does have all the systems but now you need to register which is why links don't work any more.