Danfoss FP715 Si replaced by Tado

[woodkei]

Hi, everyone. I have never done this before so bear with me, please.
I have a Worcester Bosch Greenstar Heatslav 18/25 which is currently controlled by a Danfoss FP715 Si.
There is no thermostat in the system.
I want to replace the Danfoss with a Tado V3+ and am 99% there except for the wiring.
From the boiler there are 4 conductors: Live (Brown), Neutral (Blue), DHW On (Grey) and HTG On (Black).
This info is from the wall plate terminal identification and the backplate on the Danfoss. Pics 20251007_120920.jpg and 20251007_104556.jpg
What I need to know is where the Grey and the Black go on the Tado backplate?
I include a pic of a Tado Wireless Receiver like mine. Pic: 20251014_170729.jpg

I really appreciate any help you can give.

 

[CountryFan]

Dhw on will go to HW NO and heating on will go to CH NO. What you will also need is a link from L to CH com and HW Com

 

[woodkei]

Thank you, Stuckinarut.