Sunvic Thermostat problems.

COMmon (live) DEMand (switched live when its too cold) SATisfied (swwitched live when its warm enough) Neutral.

No earth it seems

Normally red goes to COMmon Blue goes to Neutral Yellow goes to DEMand

Unsheathed (EARTH) won't be connected, and neither will SATisfied.

There is a table with the wiring diagram, and for the 4101 it shows that com goes into hole 2, dem goes into hole 1, sat goes into hole 3, and the neutral is listed as n/a.

I take it i don't wire the neutral then?

Can you tell i'm new to this lol.

Thanks

Matt.

If it's an electronic stat rather than a mechanical one, it won't have an accelerator heater and you don't need a neutral for the heater return - so the blue wire needs to be taped off and made safe.

It sounds like you connected it to SAT to stop it being lonely! The stat is a changeover switch which connects the live input (COMmon) either to DEMand (when the room temperature is below the stat setting) or to SATisfied (when the room temperature is above the stat setting). For a normal heating system, you don't need anything connected to SAT. If you connect neutral to it, as soon as the room warms up to the set temperature, you get a dead short between live and neutral - with a resulting loud BANG!

Thanks a lot for your help guys.

Got it working now(till the next problem comes up lol).

Matt.

BLUE goes to NEUTRAL.