Replacing ESI ESRTP5 dual zone thermostat with Tado wired

[Salam]

I am planning to replace my two (upstairs and downstairs) ESI controls with Tado wired. Is it just direct repalcement or do I need to do anything with the wiring centre or boiler etc? Thanks in advance.

 

[cross thread]

Wired ESI or wireless have you checked

 

[Salam]

It is wired ESI

 

[CountryFan]

Should be a near on straight swap, although may need a wire alteration. Is an esi wiring center used?

 

[Salam]

Yes there is an esi wiring centre which is in an upstairs room close to the zone valves

 

[CountryFan]

Yes there is an esi wiring centre which is in an upstairs room close to the zone valves

That may need to be replaced, I can't remember, as I think the existing use 5v, but Tado will be contact free and should work