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Confused by room thermostat wiring
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Note to OP :
Put 999 in your speed dial you or a relative / friend might need itYou may click thanks if you found my advice useful0 -
Sorry my answer was a bit brief and should also have said..... check it out first. IF the wiring follows normal conventions then what I have told you will work. Worst thing that will happen is a blown fuse. It is fused at 3 amps isn't it?0
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What's a fuse?
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Glad to have caused some amusement. But I have worked it out with the wiring diagram. No, it wasn't three-phase wiring
. ziggyman99 was right. The blue wire was for an "accelerator resistor" which may be useful in old-school thermostats, but I don't think the new one's going to need it, so I'll just close that one off. "Einstein never said most of the things attributed to him" - Mark Twain0 -
Be aware that a new electronic 'stat will probably want a neutral present in order to work - rather than just be a mechanical switch within the live "line" (live in, switched live back out) like your old mechnical one was. You might find you have to put a new cable in anyway, or at least adapt the connections at the boiler end in order to provide this neutral to the 'stat. Either way it ought to be connected via a fused connection unit (FCU/"fused spur") fused to 3A max - it will confirm this in the instructions for your new 'stat. What make/model are you using?0
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Thanks, but this one (a Philex model) explicitly says that any neutral/earth conductors must not be connected to it.Be aware that a new electronic 'stat will probably want a neutral present in order to work - rather than just be a mechanical switch within the live "line" (live in, switched live back out) like your old mechnical one was. You might find you have to put a new cable in anyway, or at least adapt the connections at the boiler end in order to provide this neutral to the 'stat. Either way it ought to be connected via a fused connection unit (FCU/"fused spur") fused to 3A max - it will confirm this in the instructions for your new 'stat. What make/model are you using?"Einstein never said most of the things attributed to him" - Mark Twain0
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