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Discuss More On Job Help Sorry. Wiring Center/Wolsely RoomStat EHE0200364 in the Central Heating Systems area at ElectriciansForums.net


Electrician's Arms
Morning guys.

Can anyone clarify this for me?


From this schematic, is it asking me to:

1. put in a link between L and L at the incoming side, and

2. put in a link between L and A (to feed the SL out) on the outgoing side?

Or is it just showing me the internal volt-free switching between L and A, and no links are required?

I'm only getting the heating to fire up when I bypass the switching at the receiver, i.e. put a link in between the incoming L and B (which then goes to the valve etc.). It's just not firing up when the programmer calls for it. HW is fine.

Many Thanks (again).


Respected Member
L - L should already be there as it's shown within the outline of the Relay box. It may be removable if required.
Yes A B C are volt free unless you fit the L - A link, if required.


Electrician's Arms
Thanks snowhead.

I put the link in and it's all good . I was very worried about introducing 230V where it wasnt welcome.

Thanks for your help.

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