Changing analog to digital thermostat - help please

[Croftie]

Hi,

Could you experts advise how to wire up a CM907 please?

Old stat is a Honeywell T6360B.

Is it Brown to A, Blue to B and nothing in C?

I've tried figuring it out from the CM907 instructions but I'm electrically illiterate http://www.honeywelluk.com/Documents/Installation-Guide/pdf/1161.pdf

Thanks.

 

[hertsboilers]

Brown to A, and blue to B.

Both of them are a switch, it doesn't matter

 

[ianmcd]

As Herts says A and B doesnt matter which way round its just a switch

 

[Croftie]

Oh ok, couldn't of blown myself up even if I had tried then

Cheers lads, I've learnt something today

 

[Steelmasons]

Sleeve that blue core while you're @ it.....gets my goat it really does.

 

[Croftie]

Ah, that's the handywork of the boiler installer 7 years ago.

How do I sleeve it, insulation tape/heat shrink/other and why does it need doing out of interest?

 

[Cgas]

With brown or black sleeving usually. Doesn't really need doing just best practise.

 

[Croftie]

Ok well I'm all for following best practice. If your going to do a job...

So it's to indicate the purpose of the wire? Blue is usually neutral but it's a switching wire so needs brown or black instead. I'm just curious really.

 

[Newboy]

A brown sleeve on the blue cable indicates that it's potentially 'live' core