sunvic tlx 7501 digital room thermostat

[lensmender]

i am replacing my old mechanical thermostat for the above didital type. the old one has four wires, red yellow blue and earth. as i understand that i only need two wires for the new one i have used the yellow and red, but it will not trigger the boiler. can anyone help pls?

 

[Taylortwocities]

Yes, look in the WIKI

It has all the info you need.

Oh look, I am feeling helpful (for once)

look here //www.diynot.com/wiki/electrics:how_to_replace_a_room_stat

 

[lensmender]

Hi
thanks I have done this but it will not turn on the boiler any idear
thanks

 

[ELZ4742]

common (red live) is no.3 switched live (prob yellow) is no.2

 

[ELZ4742]

this is assuming that you have a combi boiler, right?

 

[seco services]

don't mater what boiler system it is still the same.

 

[ELZ4742]

with VF contacts? i disagree.

 

[seco services]

ok then so what other way would you wire it ?

 

[ELZ4742]

with a stat without VF contacts.

 

[seco services]

read the instructions it can go on both.

 

[ELZ4742]

cool, appologies if i'm wrong, can you point me in those directions?

 

[seco services]

what do you want the instructions ?

 

[ELZ4742]

please...hate thinking im right when i could be wrong

 

[seco services]

SUNVIC

 

[ELZ4742]

yup... i take back my comment. thanks for the info seco