Conversion of ST699 to TADO V3+ Wireless Smart Thermostat, including programmer and hot water control

dannyattree · 12 Oct 2022

Hi, i have a very temperamental ST699 that i would like to convert to the above TADO V3+ system, the boiler is a very old Netaheat Profile.

This is the ST699 backbox, basically crumbles on removal of the front, i have a new back box and other standard adapters so this is no issue.

Does anyone know if the TADO V3+ system is compatible with this, any help or information regarding installation would be really helpful.

Deleted member 267285 · 12 Oct 2022

Providing it is the V3 wireless system, then yes, and it’s similar to the above really:

L & N straightforward
Links from L to common terminals
copy the NO terminals sleeving any live wires with brown sleeving
copy the NC for hot water - although it’s bad practice to use the green & yellow wire for anything other than earth/cpc

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Conversion of ST699 to TADO V3+ Wireless Smart Thermostat, including programmer and hot water control

dannyattree

Deleted member 267285

DIYnot Local

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