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Another question has occurred to me. Will I need to use a second 10 connection wiring centre? With using the s plan plus it'll mean a lot of wires into the same terminals i.e. Live, Neutral and Earths. :?:

I posted a reply in the following section but having looked at it again its not really in the right section, but I cannot find a way to delete my reply. Can somebody please help? http://www.diynot.com/forums/viewtopic.php?t=37582 :oops:

This is a simplified 2 Zone 2 port setup. I hope this is correct. And the additional 2 port HW setup From what I can see of the Honeywell wiring diagram for the 2 port valve Terminal 1 (Live in) is bridged to (on my drawing Terminal 4) the terminal which has all 3 grey wires from...

Ah ha :oops: I see where I have made a mistake. I have just looked at the 2 port valves I have here and they do not have a White wire at all. Only Green/Yellow, Grey, Blue, Orange, Brown. That's explains why the drawing I have made is wrong. :oops: :oops: :oops:

Can you please tell me what are the black lines with Yellow on them? To be honest I find the drawing in relation to the wires a bit confusing. If I can help in anyway with any drawings dont hesitate to shout and I'll photoshop them up for you. :D

Hmmmm :? . The White wires were referenced from a drawing I found online. Having looked at the numerous drawings I have since found they all appear to show a 3 port valve with the following colours. Green/Yellow Blue Orange Grey White On my 3 port valve it is the White which is...

Looking at just the live connections, is this right?

A question regarding the boiler connection. My boiler has a Switched Live as well as a normal live connection. Live Sw Live Neutral Earth. Referencing my previous drawings, is the Live and the Switched Live wired the same for the S Plan plus? On my existing setup the Boiler live...

I was just re reading this post and realised I had not read this properly :oops: . Hopefully this is now what you mean?

1st April 2004. http://www.tlc-direct.co.uk/Technical/DataSheets/Cable/CableColoursLeaflet.pdf

Here's my junction box. The 3 core and earth is the harmonized colours.

Please feel free to use any of my pictures if they are of any use to you for any future posting. :)

Is this now correct?

Looking at my existing wiring, the boiler connection to the junction box is 3 core and earth (Brown,Grey,Black and Earth). The Brown is connected to terminal 8. Black goes to terminal 1 and is marked with red switch wire cover. Grey goes to Neutral terminal 2 earth goes to terminal 3. The...

D_Hailsham, Do these look correct?

Sorry that was completely my mistake, I did indeed mean the receiver and not the transmitter :oops: I see :) . I took the drawing you attached and drew a new version of it using Photoshop. Thanks again. The one for the living room would be be on the other side of the wall. The hallway...

D_Hailsham, Can you please clarify my understanding of the following: I have been looking at the CM927 as opposed to the CM907. I like the simplicity of the wireless setup. If I understand it correctly, the transmitter is wired to the Zone valve for which it controls. Ref: S Plan...

D_Hailsham, Many many thanks once again for your excellent reponses :D The drawing you attached (S plan plus) I had seen in a couple of places on the internet. I noticed that it appears to have been enlarged from a smaller copy and therefore has lost some of its clarity. I have taken...

D_Hailsham, The diagram you posted earlier (S plan plus with CM900), can you please clarify the following wire colours not labeled? The wire that goes from Terminal 1 to contact A on the CM900, The wire that goes from Contact B on the CM900 to Terminal 7. The wire that goes from...

Thanks once again :D Boiler is an HRM Wallstar 15/20. I tried to find out if it had a relief valve to protect the pump. No idea though. Is it needed? As it is my boiler seems to switch straight off when the stat temp is reached.