Nest Heatlink replacing Danfoss TS715Si and Danfoss Ret 2000B-RF & RX1-S

[Singleminded]

Can I get some help with this please?

Here’s the photos of the current wiring
First is the controller
Second is the wireless thermostat receiver

Is this possible as a DIY job? Was looking at this thread but not sure it’s the right one for my setup https://www.diynot.com/diy/threads/upgrading-form-danfoss-to-nest.531723/

From the controller would it be :

L - L
N - N
1 (Com) to 2 on Nest
4 on Danfoss to 3 on Nest
Earth to Earth Next to T1 T2
Then just disregard 3 on Danfoss blank them off
And leave the Ret 2000 as is?

Ideally I want to be able to reconnect everything back when I move.

 

[CBW]

Why are you disregarding 3 on Danfoss, do you have a combi? You also have a small link in the common, so needs replicating on Nest.

 

[Singleminded]

Why are you disregarding 3 on Danfoss, do you have a combi? You also have a small link in the common, so needs replicating on Nest.

I do have a combi yes - I took those wiring instructions from another post that looked a similar set up to mine.

So very happy for some advice on this!
I wasn’t sure on that. Nest site says not to use them as they have internal ones?