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Following on from my thread Heinz 57 heating system thread..................
I have installed a Heatmiser UH8-RF control centre a RF switch and two neoair thermostats into an S plan system. Had a few issues with the UH8-RF firing the boiler but in the end wired the boiler n/c from the UH8-RF to the orange cable of the two port valve which also has the connection from the RF switch for the central heating .
Everything works fine until I then connect the frost stat from the
boiler which is a Buderus Camray 5, I am connecting a permanent live from the wiring centre to the frost stat and then the return from the frost stat to the orange cables from the two port valves. At this point nothing happens at all, the existing heating or UFH will not fire even though the frost stat is turned down. As soon as I disconnect the frost stat everything works again?
Any ideas as to what I missing or doing wrong, I haven't got as far as the pipe stat as cannot get the system to work with just the frost stat!?
I have installed a Heatmiser UH8-RF control centre a RF switch and two neoair thermostats into an S plan system. Had a few issues with the UH8-RF firing the boiler but in the end wired the boiler n/c from the UH8-RF to the orange cable of the two port valve which also has the connection from the RF switch for the central heating .
Everything works fine until I then connect the frost stat from the
boiler which is a Buderus Camray 5, I am connecting a permanent live from the wiring centre to the frost stat and then the return from the frost stat to the orange cables from the two port valves. At this point nothing happens at all, the existing heating or UFH will not fire even though the frost stat is turned down. As soon as I disconnect the frost stat everything works again?
Any ideas as to what I missing or doing wrong, I haven't got as far as the pipe stat as cannot get the system to work with just the frost stat!?