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Hello
I wondered if anyone would be kind enough to give me thoughts on how best to make a call for central heating (the hot water side of things is fine) to a Vaillant (630) system boiler, possibly via a switched live connection.
The system involves UFH without radiators – UFH on the ground floor and also the first floor. Two Heatmiser UH8-N wiring centres are used, these are located next to the two UFH manifolds. The local thermostats, pump & valve are wired in to their respective Heatmiser wiring centres. Volt free Heat Enable connections -live, switched live and also earth - are then fed back from the two Heatmisers to the Salus TC100 wiring centre which is next to the boiler.
At this point, according to the Salus TC100 wiring diagram (uploaded), the Thermostats (or in this case the Heat Enable connection) would then be connected to the local central heating motorised valve which, sensing the call for heat, would operate and in-turn fire up the boiler via the connected live boiler wire which runs to the Vaillant boiler.
Because there is no central heating motorised valve local to the boiler (they are both local to the manifolds and so wired into and operated by the Heatmiser wiring centres), I believe that I may need to connect the volt-free Heat Enable switched live / live feeds which are coming into the Salus TC100 to the 230v switched live connection which runs to the boiler (rather than the live?), so that the call for the central heating can successfully be made.
Any thoughts on a good solution would be greatly appreciated!
I wondered if anyone would be kind enough to give me thoughts on how best to make a call for central heating (the hot water side of things is fine) to a Vaillant (630) system boiler, possibly via a switched live connection.
The system involves UFH without radiators – UFH on the ground floor and also the first floor. Two Heatmiser UH8-N wiring centres are used, these are located next to the two UFH manifolds. The local thermostats, pump & valve are wired in to their respective Heatmiser wiring centres. Volt free Heat Enable connections -live, switched live and also earth - are then fed back from the two Heatmisers to the Salus TC100 wiring centre which is next to the boiler.
At this point, according to the Salus TC100 wiring diagram (uploaded), the Thermostats (or in this case the Heat Enable connection) would then be connected to the local central heating motorised valve which, sensing the call for heat, would operate and in-turn fire up the boiler via the connected live boiler wire which runs to the Vaillant boiler.
Because there is no central heating motorised valve local to the boiler (they are both local to the manifolds and so wired into and operated by the Heatmiser wiring centres), I believe that I may need to connect the volt-free Heat Enable switched live / live feeds which are coming into the Salus TC100 to the 230v switched live connection which runs to the boiler (rather than the live?), so that the call for the central heating can successfully be made.
Any thoughts on a good solution would be greatly appreciated!