Hi, I need to connect BHT-002 smart thermostat to water/gas boiler. Unfortunately old thermostat was removed by previous owners and I have nothing to compare to. In the attached pictures of wires and Moes thermostat that I would like to install. could you please assist which cable should go where? Thanks in advance.
Connecting BHT-002 Moes thermostat to water/gas boiler
- Thread starter VERAY
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- moes thermostat wiring
D
Deleted member 267285
A bit dangerous imo. Are you able to test wires? What boiler?
D
Deleted member 267285
Ok, appears to be 230/240v switching from previous stat, so:
Assuming it’s wired correctly, Live and link to L (4) and 1 respectively, Blue to N (3), black to 2, leaving the cpc (earth) where it is.
Assuming it’s wired correctly, Live and link to L (4) and 1 respectively, Blue to N (3), black to 2, leaving the cpc (earth) where it is.
something you are not telling us , the boiler would never work with the wires left like that
D
Deleted member 267285
Have I missed something?
with those wires at the thermostat end left like that the boiler wouldnt come on for heating, and the neutral and live wires would have been dangerouse, the L&N dont show at the boiler end so probably connected at the fused spur, but hopefully they were disconnected when the thermostat was removed, they will have to be connected again
Thermostat was removed by previous owners, boiler is in granny annex, water heating works perfect but none of the radiators heat up hence bought the new thermostat. please let me know if I need to do anything more than what has been advised by Chris_W? Thanks
as I already said, the rads wouldnt heat up with those wires left disconnected, you will have to find the other end of that cable (probably at the fused spur , as not connected at the boiler) then connect these and then connect as @Chris_W said
