Danfos to Nest

[Alistair Harper]

Hi,

Please help as I can’t see a diagram that matched my setup in other posts.
I want to swap a danfos controller and a replacement thermostat to a Nest system.
I have a oil combi boiler.

My Danfos FP/CP715-Si is wired as below.
3x N
2x L
1x DHW ON
1x HTG ON

The room thermostat is a follows

I don’t see which wires would connect to t1& t2 ? And what is wire on 4 on the room thermostat?

Any help would be amazing

 

[CBW]

Are you sure it’s a combi? Anyway I would have said 1 and 3 to T1 and T2, but it appears yours is wired slightly differently.

 

[ianmcd]

you have an S plan system , follow the instructions for that an link out the existing room thermostat

 

[Alistair Harper]

Are you sure it’s a combi? Anyway I would have said 1 and 3 to T1 and T2, but it appears yours is wired slightly differently.

Now you mention it it may not be.
I have an external Grant oil (kerosine) boiler that supplies hot water and heating.

 

[Alistair Harper]

you have an S plan system , follow the instructions for that an link out the existing room thermostat

are you sure as I don’t have a water tank just an external oil Grant boiler supplying hot water and heating.

 

[ianmcd]

well I know you think we have crystal balls, just post what controls and wiring you have

 

[Alistair Harper]

Thank you I appreciate your help. Can you see the wiring above?

 

[Alistair Harper]

Bump