Nest .

[townfanjon]

Nest men, could do with a bit of advice please .

I am on a boiler swap at the moment, guy wants his Nest fitting to new boiler , 050 viessmann with low voltage controls.
Obviously the nest has LNE suppling it , but when it switches does it switch 240 v or 24 v , I dont want a fried board lol

Thank you in advance

 

[ShaunCorbs]

240 but nest is voltage free (separate connections)

 

[townfanjon]

240 but nest is voltage free (separate connections)

Great pal , so it just switches internaly and doesnt send voltage down the wire ?

 

[ShaunCorbs]

Great pal , so it just switches internaly and doesnt send voltage down the wire ?

correct live/24 or 240v to the stat via the common on 2 then your switch / call on 3

you can use 12v or 240v etc on it as its not connect to anything

if using 24 volt needs to be wired from the boiler