The leaflet provided with the HR92 wireless radiator controller states (6. Further functions) that if the controller is turned OFF, "the time program of the central operating device is no longer active for this radiator controller, but frost protection is guaranteed if the heating is switched on". My questions are:-
1. In the event of frost conditions, does the central operating device tell the HR92 to open or is there a mechanical device inside the HR92 which responds to frost conditions?
2. At what temperature does the HR92 respond to frost conditions?
3. If the central operating device is set to AWAY, does the frost protection still work, even if the HR92 is OFF?
Thank you for your help
Robert White