Hi I have 3 zones in my house with analogue thermostats, I want to upgrade to the Honeywell home dt90 can anyone point me in the right direction for the wiring I’ve attached pic of the analogue wiring and the back of the new thermostat casing any help much appreciated
Replacing analogue thermostat with digital (1)
- Thread starter Cgallen
- Start date
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Black or grey? Thanks
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And it’s a motorised valve
No, 1 to A and 3 to B.
Not sure how this would work with the DT90, sorry
No, C is off position (normally closed)
Your present thermostat is actually wired the wrong way round - assuming brown is Live.
It should be Live to 1 and Switched Live to 3 - which will be L to A and SL to B.
That's all you should need.
Where is the lamp shown in the diagram
It should be Live to 1 and Switched Live to 3 - which will be L to A and SL to B.
That's all you should need.
Where is the lamp shown in the diagram
hi the old stat was working can’t get this thing to go at all ♂️
All you should need is L(brown) to A and SL(black) to B.
Just put brown and black together in a connector block and see if it works.
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