Any experts on the Honeywell CM Zone heating control system?
I can't get my HR80 radiator controller modules to communicate with an existing HC60NG relay module. The CM67z room unit and three HR80's were bought as a pack in Germany recently. The HC60NG boiler control unit came with a CM67NG RF room controller (model reference T6667D1081), bought about four years ago in the UK.
The CM67z will correctly set the HR80 programmable temperatures and the CM67z can communicate with the HC60NG, at least if I set parameter
17:SU to 1 or 2 (which automatically sets 7:tS to 2) before doing the binding. However the CM67z with the factory default settings won't bind to the HC60NG. The HR80's won't switch the HC60NG output ON whatever temperature I set manually. I've tried clearing all the bindings and running through all the teach-ins from zero but I am still stuck.Any ideas? I wonder if the HC60NG is too old to receive data from the HR80's but I don't want to go and invest =A360 in a new HC60NG if it is not the problem.