Replacing Digistat 3 with Honeywell CM907 ?

[creative101]

I am about to replace a old Digitiat 3 with a CM907 and needed some advice.

Currently:
Digistat 3 connections are:

1 = RED
2 = nothing
3 = BLUE
(I also have a black and a green/yellow wire coming form the wall which are unused (taped up)).

Do i connect the CM907 as?

A = RED
B = BLUE
C = nothing

OR

A = RED
B = nothing
C = BLUE


Many thanks

 

[mikely]

You want:

A = RED
B = BLUE
C = nothing

You should add a red sleeve to the blue wire to show that it is part of the live circuit and not a neutral.