Thank you for advise,
Everything works like a charm.
As I have got Hive radiator valves in 2nd zone just thought 2nd zone could be controlled without second zone Hive receiver and thermostat...
I have just tried to install Hive to my CH system and that didn't go well,
I have got Ideal Logic Heat 12, Danfoss TP9000 Si, Danfoss...
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