Wire from 3port valve
- Thread starter Diytry1
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Do you have a multimeter,and can you safely measure mains voltages ?
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Can you follow the cable that goes from boiler to that junction box, then establish which wires in that cable are connected to what terminals in the junction box ?
Depending on the model of boiler, you could access the electrics?
As above, without testing and tracing cables, it will be difficult to tell.
However, the cables match, almost perfectly, a standard Y plan layout...
(Image courtesy of flameport)
In which case, orange would go into terminal 8.
The almost - there appears to be an extra wire, already in terminal 8, that I can't trace within your photo.
Is there a separate system pump?
However, the cables match, almost perfectly, a standard Y plan layout...
(Image courtesy of flameport)
In which case, orange would go into terminal 8.
The almost - there appears to be an extra wire, already in terminal 8, that I can't trace within your photo.
Is there a separate system pump?
Im trying to account for an extra wire in terminal 8.
Is there anything that looks like this...
Ok, try orange into 8.
If you can run hot water by itself, it suggests to me it’s been wired unconventionally, as you can see hot water alone should be the orange wire. So you’re looking possibly for the room stat live in, which could be terminal 4. Could always try the orange wire in that anyway I’d you be already tried it in a different one
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