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Got an old switchmaster 900, bought a tado to change it bust just a bit stumped on the wiring. Mainly because there is no off for the hw and ch. This is what I've got behind the old timer. Any help would be appreciated, thanks.

Hi, having a bit of trouble Boiler has a manual timer fitted that has never been used, do I wire the hive up to that or remove the link between 7 and 12 and put it there.