there is a black wire coming out of B but it is going to the danfoss programmer. There is no wire coming out of the receiver going directly into the boiler. :(
Hello All,
I am having problems with HCW80 room stat. It is not regulating the temperature but only acting as an on/off switch for the boiler.
Warmfront (govt scheme) installed a new baxi duotec boiler with a danfoss programmer and the honeywell wireless thermostat just one month ago...