Hi,
I have just moved into a new house and it has a British Gas UP1L controller and thermostat controlling the heating and hot water. I have a new 3rd Generation NEST controller and thermostat to install and I cannot find a wiring diagram for the UP1L.
N and L are self explanatory.
I think 1 is for the water and 3 is for the heating but i am unsure what 4 is for (Is this correct)?
Does anyone know where i connect these wires on the NEST controller?
Thanks in advance
Regards
Tom
I have just moved into a new house and it has a British Gas UP1L controller and thermostat controlling the heating and hot water. I have a new 3rd Generation NEST controller and thermostat to install and I cannot find a wiring diagram for the UP1L.
![3.jpg 3.jpg](https://cdn.diynot.com/data/attachments/111/111142-7107d0feeb99d12a439489b6c0005252.jpg)
![111143-50d953aaa0938bdd7a4cbcb9f567f550.jpg](http://www.diynot.com/diy/data/attachments/111/111143-50d953aaa0938bdd7a4cbcb9f567f550.jpg)
N and L are self explanatory.
I think 1 is for the water and 3 is for the heating but i am unsure what 4 is for (Is this correct)?
Does anyone know where i connect these wires on the NEST controller?
Thanks in advance
Regards
Tom
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