can I replace a Drayton Digistat 1 with a Drayton 1 channel Heat Hub?

[Grim1201]

Hi I am looking to upgrade our Drayton Digistat 1 thermostat with the Drayton Wiser Thermostat 1 kit but want to check wiring for the Heat Hub if anyone can help.

So existing digistat is battery powered and has three wires for three connection prongs as follows.-
Red into terminal 1 - which I believe is the common C
Blue into terminal 2 - which I believe is the heating off (heating satisfied)
Yellow into terminal 3 - which I believe is the heating on (call for heat)

I have no fused spur to the thermostat.

The backing plate on the current digistat is a little larger than the new one for the Heat hub so I will need to rewire. Am I safe to wire the new plate back in the same config as above mindful that the new plate has 6 positions?:-
N
L
1 - Com
2 - Off
3 - On
4 - ON although should be redundant in my case I only have a 1 channel hub.

I can find plenty of info on how to upgrade a two wire battery thermostat and a 4 wire powered thermostat, but not a three wire existing battery thermostat.

Advise please

 

[Dad'n'lad]

wrong page mate. this is to showcase your projects, step by step to help others. Go to the plumbing and central heating forum. has people responding every hour, minimum.

 

[Grim1201]

thanks Dad'n'lad, I have reposted on the correct forum and when I work out how I will delete my original post from this forum!