Tado installation help

Joined
29 Jun 2020
Messages
2
Reaction score
0
Country
United Kingdom
I am attempting to self install my Tado thermostat. Having removed the cover on my existing Potterton termostat I am presented with the following (see attached screenshot). The Tado guide says label the wires and connect wire 2, 1 and 4. On my unit I have no wire in terminal 1. Any help would be welcomed. Thanks
 

Attachments

  • Capture.PNG
    Capture.PNG
    88.4 KB · Views: 440
  • 20200629_153528.jpg
    20200629_153528.jpg
    227 KB · Views: 436
There should be a diagram inside the lid of the old Potterton thermostat something like below.

PT Stat.jpg


If your Potterton is like the above, then:

4 = Neutral (Blue)
2 = Live (Red)
3 = Switched Live (Yellow)

You don't give details of the Tado thermostat wiring, but the Tado instructions will identify its connections for you. If it's like the one below, then in your case:

Tado Thermostat.jpg


The red wire (Live) goes in COM
The yellow wire (Switched Live) goes in NO

The blue wire Neutral isn't used and is isolated and kept out of the way.

If your model of Tado is different, post back its wiring details.
 
Back
Top